1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
use std::fs::OpenOptions;
use std::io::Write;
use std::str::FromStr;
use std::sync::Arc;
use std::time::{Duration, Instant, SystemTime, UNIX_EPOCH};

use anyhow::{anyhow, Result};
use bip39::*;
use bitcoin::hashes::hex::ToHex;
use bitcoin::hashes::{sha256, Hash};
use bitcoin::util::bip32::ChildNumber;
use chrono::Local;
use futures::TryFutureExt;
use gl_client::pb::incoming_payment;
use log::{LevelFilter, Metadata, Record};
use reqwest::{header::CONTENT_TYPE, Body};
use sdk_common::grpc;
use sdk_common::prelude::*;
use serde::Serialize;
use serde_json::{json, Value};
use strum_macros::EnumString;
use tokio::sync::{mpsc, watch, Mutex};
use tokio::time::{sleep, MissedTickBehavior};

use crate::backup::{BackupRequest, BackupTransport, BackupWatcher};
use crate::buy::{BuyBitcoinApi, BuyBitcoinService};
use crate::chain::{
    ChainService, Outspend, RecommendedFees, RedundantChainService, RedundantChainServiceTrait,
    DEFAULT_MEMPOOL_SPACE_URL,
};
use crate::error::{
    ConnectError, ReceiveOnchainError, ReceiveOnchainResult, ReceivePaymentError,
    RedeemOnchainResult, SdkError, SdkResult, SendOnchainError, SendPaymentError,
};
use crate::greenlight::{GLBackupTransport, Greenlight};
use crate::lnurl::auth::SdkLnurlAuthSigner;
use crate::lnurl::pay::*;
use crate::lsp::LspInformation;
use crate::models::{
    sanitize::*, ChannelState, ClosedChannelPaymentDetails, Config, EnvironmentType, LspAPI,
    NodeState, Payment, PaymentDetails, PaymentType, ReverseSwapPairInfo, ReverseSwapServiceAPI,
    SwapInfo, SwapperAPI, INVOICE_PAYMENT_FEE_EXPIRY_SECONDS,
};
use crate::node_api::{CreateInvoiceRequest, NodeAPI};
use crate::persist::db::SqliteStorage;
use crate::swap_in::swap::BTCReceiveSwap;
use crate::swap_out::boltzswap::BoltzApi;
use crate::swap_out::reverseswap::{BTCSendSwap, CreateReverseSwapArg};
use crate::*;

const DETECT_HIBERNATE_SLEEP_DURATION: Duration = Duration::from_secs(1);
const DETECT_HIBERNATE_MAX_OFFSET: Duration = Duration::from_secs(2);
pub type BreezServicesResult<T, E = ConnectError> = Result<T, E>;

/// Trait that can be used to react to various [BreezEvent]s emitted by the SDK.
pub trait EventListener: Send + Sync {
    fn on_event(&self, e: BreezEvent);
}

/// Event emitted by the SDK. To listen for and react to these events, use an [EventListener] when
/// initializing the [BreezServices].
#[derive(Clone, Debug, PartialEq)]
#[allow(clippy::large_enum_variant)]
pub enum BreezEvent {
    /// Indicates that a new block has just been found
    NewBlock { block: u32 },
    /// Indicates that a new invoice has just been paid
    InvoicePaid { details: InvoicePaidDetails },
    /// Indicates that the local SDK state has just been sync-ed with the remote components
    Synced,
    /// Indicates that an outgoing payment has been completed successfully
    PaymentSucceed { details: Payment },
    /// Indicates that an outgoing payment has been failed to complete
    PaymentFailed { details: PaymentFailedData },
    /// Indicates that the backup process has just started
    BackupStarted,
    /// Indicates that the backup process has just finished successfully
    BackupSucceeded,
    /// Indicates that the backup process has just failed
    BackupFailed { details: BackupFailedData },
    /// Indicates that a reverse swap has been updated which may also
    /// include a status change
    ReverseSwapUpdated { details: ReverseSwapInfo },
    /// Indicates that a swap has been updated which may also
    /// include a status change
    SwapUpdated { details: SwapInfo },
}

#[derive(Clone, Debug, PartialEq)]
pub struct BackupFailedData {
    pub error: String,
}

#[derive(Clone, Debug, PartialEq)]
pub struct PaymentFailedData {
    pub error: String,
    pub node_id: String,
    pub invoice: Option<LNInvoice>,
    pub label: Option<String>,
}

/// Details of an invoice that has been paid, included as payload in an emitted [BreezEvent]
#[derive(Clone, Debug, PartialEq)]
pub struct InvoicePaidDetails {
    pub payment_hash: String,
    pub bolt11: String,
    pub payment: Option<Payment>,
}

pub trait LogStream: Send + Sync {
    fn log(&self, l: LogEntry);
}

/// Request to sign a message with the node's private key.
#[derive(Clone, Debug, PartialEq)]
pub struct SignMessageRequest {
    /// The message to be signed by the node's private key.
    pub message: String,
}

/// Response to a [SignMessageRequest].
#[derive(Clone, Debug, PartialEq)]
pub struct SignMessageResponse {
    /// The signature that covers the message of SignMessageRequest. Zbase
    /// encoded.
    pub signature: String,
}

/// Request to check a message was signed by a specific node id.
#[derive(Clone, Debug, PartialEq)]
pub struct CheckMessageRequest {
    /// The message that was signed.
    pub message: String,
    /// The public key of the node that signed the message.
    pub pubkey: String,
    /// The zbase encoded signature to verify.
    pub signature: String,
}

/// Response to a [CheckMessageRequest]
#[derive(Clone, Debug, PartialEq)]
pub struct CheckMessageResponse {
    /// Boolean value indicating whether the signature covers the message and
    /// was signed by the given pubkey.
    pub is_valid: bool,
}

#[derive(Clone, PartialEq, EnumString, Serialize)]
enum DevCommand {
    /// Generates diagnostic data report.
    #[strum(serialize = "generatediagnosticdata")]
    GenerateDiagnosticData,
}

/// BreezServices is a facade and the single entry point for the SDK.
pub struct BreezServices {
    config: Config,
    started: Mutex<bool>,
    node_api: Arc<dyn NodeAPI>,
    lsp_api: Arc<dyn LspAPI>,
    fiat_api: Arc<dyn FiatAPI>,
    buy_bitcoin_api: Arc<dyn BuyBitcoinApi>,
    support_api: Arc<dyn SupportAPI>,
    chain_service: Arc<dyn ChainService>,
    persister: Arc<SqliteStorage>,
    payment_receiver: Arc<PaymentReceiver>,
    btc_receive_swapper: Arc<BTCReceiveSwap>,
    btc_send_swapper: Arc<BTCSendSwap>,
    event_listener: Option<Box<dyn EventListener>>,
    backup_watcher: Arc<BackupWatcher>,
    shutdown_sender: watch::Sender<()>,
    shutdown_receiver: watch::Receiver<()>,
    hibernation_sender: watch::Sender<()>,
    hibernation_receiver: watch::Receiver<()>,
}

impl BreezServices {
    /// `connect` initializes the SDK services, schedules the node to run in the cloud and
    /// runs the signer. This must be called in order to start communicating with the node.
    ///
    /// # Arguments
    ///
    /// * `req` - The connect request containing the `config` SDK configuration and `seed` node
    ///   private key, typically derived from the mnemonic. When using a new `invite_code`,
    ///   the seed should be derived from a new random mnemonic. When re-using an `invite_code`,
    ///   the same mnemonic should be used as when the `invite_code` was first used.
    /// * `event_listener` - Listener to SDK events
    ///
    pub async fn connect(
        req: ConnectRequest,
        event_listener: Box<dyn EventListener>,
    ) -> BreezServicesResult<Arc<BreezServices>> {
        let (sdk_version, sdk_git_hash) = Self::get_sdk_version();
        info!("SDK v{sdk_version} ({sdk_git_hash})");
        let start = Instant::now();
        let services = BreezServicesBuilder::new(req.config)
            .seed(req.seed)
            .build(req.restore_only, Some(event_listener))
            .await?;
        services.start().await?;
        let connect_duration = start.elapsed();
        info!("SDK connected in: {connect_duration:?}");
        Ok(services)
    }

    fn get_sdk_version() -> (&'static str, &'static str) {
        let sdk_version = option_env!("CARGO_PKG_VERSION").unwrap_or_default();
        let sdk_git_hash = option_env!("SDK_GIT_HASH").unwrap_or_default();
        (sdk_version, sdk_git_hash)
    }

    /// Internal utility method that starts the BreezServices background tasks for this instance.
    ///
    /// It should be called once right after creating [BreezServices], since it is essential for the
    /// communicating with the node.
    ///
    /// It should be called only once when the app is started, regardless whether the app is sent to
    /// background and back.
    async fn start(self: &Arc<BreezServices>) -> BreezServicesResult<()> {
        let mut started = self.started.lock().await;
        ensure_sdk!(
            !*started,
            ConnectError::Generic {
                err: "BreezServices already started".into()
            }
        );

        let start = Instant::now();
        self.start_background_tasks().await?;
        let start_duration = start.elapsed();
        info!("SDK initialized in: {start_duration:?}");
        *started = true;
        Ok(())
    }

    /// Trigger the stopping of BreezServices background threads for this instance.
    pub async fn disconnect(&self) -> SdkResult<()> {
        let mut started = self.started.lock().await;
        ensure_sdk!(
            *started,
            SdkError::Generic {
                err: "BreezServices is not running".into(),
            }
        );
        self.shutdown_sender
            .send(())
            .map_err(|e| SdkError::Generic {
                err: format!("Shutdown failed: {e}"),
            })?;
        *started = false;
        Ok(())
    }

    /// Configure the node
    ///
    /// This calls [NodeAPI::configure_node] to make changes to the active node's configuration.
    /// Configuring the [ConfigureNodeRequest::close_to_address] only needs to be done one time
    /// when registering the node or when the close to address need to be changed. Otherwise it is
    /// stored by the node and used when neccessary.
    pub async fn configure_node(&self, req: ConfigureNodeRequest) -> SdkResult<()> {
        Ok(self.node_api.configure_node(req.close_to_address).await?)
    }

    /// Pay a bolt11 invoice
    ///
    /// Calling `send_payment` ensures that the payment is not already completed, if so it will result in an error.
    /// If the invoice doesn't specify an amount, the amount is taken from the `amount_msat` arg.
    pub async fn send_payment(
        &self,
        req: SendPaymentRequest,
    ) -> Result<SendPaymentResponse, SendPaymentError> {
        let parsed_invoice = parse_invoice(req.bolt11.as_str())?;
        let invoice_expiration = parsed_invoice.timestamp + parsed_invoice.expiry;
        let current_time = SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs();
        if invoice_expiration < current_time {
            return Err(SendPaymentError::InvoiceExpired {
                err: format!("Invoice expired at {}", invoice_expiration),
            });
        }
        let invoice_amount_msat = parsed_invoice.amount_msat.unwrap_or_default();
        let provided_amount_msat = req.amount_msat.unwrap_or_default();

        // Valid the invoice network against the config network
        validate_network(parsed_invoice.clone(), self.config.network)?;

        let amount_msat = match (provided_amount_msat, invoice_amount_msat) {
            (0, 0) => {
                return Err(SendPaymentError::InvalidAmount {
                    err: "Amount must be provided when paying a zero invoice".into(),
                })
            }
            (0, amount_msat) => amount_msat,
            (amount_msat, 0) => amount_msat,
            (_amount_1, _amount_2) => {
                return Err(SendPaymentError::InvalidAmount {
                    err: "Amount should not be provided when paying a non zero invoice".into(),
                })
            }
        };

        if self
            .persister
            .get_completed_payment_by_hash(&parsed_invoice.payment_hash)?
            .is_some()
        {
            return Err(SendPaymentError::AlreadyPaid);
        }

        // If there is an lsp, the invoice route hint does not contain the
        // lsp in the hint, and trampoline payments are requested, attempt a
        // trampoline payment.
        let maybe_trampoline_id = self.get_trampoline_id(&req, &parsed_invoice)?;

        self.persist_pending_payment(&parsed_invoice, amount_msat, req.label.clone())?;

        // If trampoline is an option, try trampoline first.
        let trampoline_result = if let Some(trampoline_id) = maybe_trampoline_id {
            debug!("attempting trampoline payment");
            match self
                .node_api
                .send_trampoline_payment(
                    parsed_invoice.bolt11.clone(),
                    amount_msat,
                    req.label.clone(),
                    trampoline_id,
                )
                .await
            {
                Ok(res) => Some(res),
                Err(e) => {
                    warn!("trampoline payment failed: {:?}", e);
                    None
                }
            }
        } else {
            debug!("not attempting trampoline payment");
            None
        };

        // If trampoline failed or didn't happen, fall back to regular payment.
        let payment_res = match trampoline_result {
            Some(res) => Ok(res),
            None => {
                debug!("attempting normal payment");
                self.node_api
                    .send_payment(
                        parsed_invoice.bolt11.clone(),
                        req.amount_msat,
                        req.label.clone(),
                    )
                    .map_err(Into::into)
                    .await
            }
        };

        debug!("payment returned {:?}", payment_res);
        let payment = self
            .on_payment_completed(
                parsed_invoice.payee_pubkey.clone(),
                Some(parsed_invoice),
                req.label,
                payment_res,
            )
            .await?;
        Ok(SendPaymentResponse { payment })
    }

    fn get_trampoline_id(
        &self,
        req: &SendPaymentRequest,
        invoice: &LNInvoice,
    ) -> Result<Option<Vec<u8>>, SendPaymentError> {
        // If trampoline is turned off, return immediately
        if !req.use_trampoline {
            return Ok(None);
        }

        // Get the persisted LSP id. If no LSP, return early.
        let lsp_pubkey = match self.persister.get_lsp_pubkey()? {
            Some(lsp_pubkey) => lsp_pubkey,
            None => return Ok(None),
        };

        // If the LSP is in the routing hint, don't use trampoline, but rather
        // pay directly to the destination.
        if invoice.routing_hints.iter().any(|hint| {
            hint.hops
                .last()
                .map(|hop| hop.src_node_id == lsp_pubkey)
                .unwrap_or(false)
        }) {
            return Ok(None);
        }

        // If ended up here, this payment will attempt trampoline.
        Ok(Some(hex::decode(lsp_pubkey).map_err(|_| {
            SendPaymentError::Generic {
                err: "failed to decode lsp pubkey".to_string(),
            }
        })?))
    }

    /// Pay directly to a node id using keysend
    pub async fn send_spontaneous_payment(
        &self,
        req: SendSpontaneousPaymentRequest,
    ) -> Result<SendPaymentResponse, SendPaymentError> {
        let payment_res = self
            .node_api
            .send_spontaneous_payment(
                req.node_id.clone(),
                req.amount_msat,
                req.extra_tlvs,
                req.label.clone(),
            )
            .map_err(Into::into)
            .await;
        let payment = self
            .on_payment_completed(req.node_id, None, req.label, payment_res)
            .await?;
        Ok(SendPaymentResponse { payment })
    }

    /// Second step of LNURL-pay. The first step is `parse()`, which also validates the LNURL destination
    /// and generates the `LnUrlPayRequest` payload needed here.
    ///
    /// This call will validate the `amount_msat` and `comment` parameters of `req` against the parameters
    /// of the LNURL endpoint (`req_data`). If they match the endpoint requirements, the LNURL payment
    /// is made.
    ///
    /// This method will return an [anyhow::Error] when any validation check fails.
    pub async fn lnurl_pay(&self, req: LnUrlPayRequest) -> Result<LnUrlPayResult, LnUrlPayError> {
        match validate_lnurl_pay(
            req.amount_msat,
            &req.comment,
            &req.data,
            self.config.network,
            req.validate_success_action_url,
        )
        .await?
        {
            ValidatedCallbackResponse::EndpointError { data: e } => {
                Ok(LnUrlPayResult::EndpointError { data: e })
            }
            ValidatedCallbackResponse::EndpointSuccess { data: cb } => {
                let pay_req = SendPaymentRequest {
                    bolt11: cb.pr.clone(),
                    amount_msat: None,
                    use_trampoline: req.use_trampoline,
                    label: req.payment_label,
                };
                let invoice = parse_invoice(cb.pr.as_str())?;

                let payment = match self.send_payment(pay_req).await {
                    Ok(p) => Ok(p),
                    e @ Err(
                        SendPaymentError::InvalidInvoice { .. }
                        | SendPaymentError::ServiceConnectivity { .. },
                    ) => e,
                    Err(e) => {
                        return Ok(LnUrlPayResult::PayError {
                            data: LnUrlPayErrorData {
                                payment_hash: invoice.payment_hash,
                                reason: e.to_string(),
                            },
                        })
                    }
                }?
                .payment;
                let details = match &payment.details {
                    PaymentDetails::ClosedChannel { .. } => {
                        return Err(LnUrlPayError::Generic {
                            err: "Payment lookup found unexpected payment type".into(),
                        });
                    }
                    PaymentDetails::Ln { data } => data,
                };

                let maybe_sa_processed: Option<SuccessActionProcessed> = match cb.success_action {
                    Some(sa) => {
                        let processed_sa = match sa {
                            // For AES, we decrypt the contents on the fly
                            SuccessAction::Aes { data } => {
                                let preimage = sha256::Hash::from_str(&details.payment_preimage)?;
                                let preimage_arr: [u8; 32] = preimage.into_inner();
                                let result = match (data, &preimage_arr).try_into() {
                                    Ok(data) => AesSuccessActionDataResult::Decrypted { data },
                                    Err(e) => AesSuccessActionDataResult::ErrorStatus {
                                        reason: e.to_string(),
                                    },
                                };
                                SuccessActionProcessed::Aes { result }
                            }
                            SuccessAction::Message { data } => {
                                SuccessActionProcessed::Message { data }
                            }
                            SuccessAction::Url { data } => SuccessActionProcessed::Url { data },
                        };
                        Some(processed_sa)
                    }
                    None => None,
                };

                let lnurl_pay_domain = match req.data.ln_address {
                    Some(_) => None,
                    None => Some(req.data.domain),
                };
                // Store SA (if available) + LN Address in separate table, associated to payment_hash
                self.persister.insert_payment_external_info(
                    &details.payment_hash,
                    PaymentExternalInfo {
                        lnurl_pay_success_action: maybe_sa_processed.clone(),
                        lnurl_pay_domain,
                        lnurl_pay_comment: req.comment,
                        lnurl_metadata: Some(req.data.metadata_str),
                        ln_address: req.data.ln_address,
                        lnurl_withdraw_endpoint: None,
                        attempted_amount_msat: invoice.amount_msat,
                        attempted_error: None,
                    },
                )?;

                Ok(LnUrlPayResult::EndpointSuccess {
                    data: lnurl::pay::LnUrlPaySuccessData {
                        payment,
                        success_action: maybe_sa_processed,
                    },
                })
            }
        }
    }

    /// Second step of LNURL-withdraw. The first step is `parse()`, which also validates the LNURL destination
    /// and generates the `LnUrlWithdrawRequest` payload needed here.
    ///
    /// This call will validate the given `amount_msat` against the parameters
    /// of the LNURL endpoint (`data`). If they match the endpoint requirements, the LNURL withdraw
    /// request is made. A successful result here means the endpoint started the payment.
    pub async fn lnurl_withdraw(
        &self,
        req: LnUrlWithdrawRequest,
    ) -> Result<LnUrlWithdrawResult, LnUrlWithdrawError> {
        let invoice = self
            .receive_payment(ReceivePaymentRequest {
                amount_msat: req.amount_msat,
                description: req.description.unwrap_or_default(),
                use_description_hash: Some(false),
                ..Default::default()
            })
            .await?
            .ln_invoice;

        let lnurl_w_endpoint = req.data.callback.clone();
        let res = validate_lnurl_withdraw(req.data, invoice).await?;

        if let LnUrlWithdrawResult::Ok { ref data } = res {
            // If endpoint was successfully called, store the LNURL-withdraw endpoint URL as metadata linked to the invoice
            self.persister.insert_payment_external_info(
                &data.invoice.payment_hash,
                PaymentExternalInfo {
                    lnurl_pay_success_action: None,
                    lnurl_pay_domain: None,
                    lnurl_pay_comment: None,
                    lnurl_metadata: None,
                    ln_address: None,
                    lnurl_withdraw_endpoint: Some(lnurl_w_endpoint),
                    attempted_amount_msat: None,
                    attempted_error: None,
                },
            )?;
        }

        Ok(res)
    }

    /// Third and last step of LNURL-auth. The first step is `parse()`, which also validates the LNURL destination
    /// and generates the `LnUrlAuthRequestData` payload needed here. The second step is user approval of auth action.
    ///
    /// This call will sign `k1` of the LNURL endpoint (`req_data`) on `secp256k1` using `linkingPrivKey` and DER-encodes the signature.
    /// If they match the endpoint requirements, the LNURL auth request is made. A successful result here means the client signature is verified.
    pub async fn lnurl_auth(
        &self,
        req_data: LnUrlAuthRequestData,
    ) -> Result<LnUrlCallbackStatus, LnUrlAuthError> {
        Ok(perform_lnurl_auth(&req_data, &SdkLnurlAuthSigner::new(self.node_api.clone())).await?)
    }

    /// Creates an bolt11 payment request.
    /// This also works when the node doesn't have any channels and need inbound liquidity.
    /// In such case when the invoice is paid a new zero-conf channel will be open by the LSP,
    /// providing inbound liquidity and the payment will be routed via this new channel.
    pub async fn receive_payment(
        &self,
        req: ReceivePaymentRequest,
    ) -> Result<ReceivePaymentResponse, ReceivePaymentError> {
        self.payment_receiver.receive_payment(req).await
    }

    /// Report an issue.
    ///
    /// Calling `report_issue` with a [ReportIssueRequest] enum param sends an issue report using the Support API.
    /// - [ReportIssueRequest::PaymentFailure] sends a payment failure report to the Support API
    ///   using the provided `payment_hash` to lookup the failed payment and the current [NodeState].
    pub async fn report_issue(&self, req: ReportIssueRequest) -> SdkResult<()> {
        match self.persister.get_node_state()? {
            Some(node_state) => match req {
                ReportIssueRequest::PaymentFailure { data } => {
                    let payment = self
                        .persister
                        .get_payment_by_hash(&data.payment_hash)?
                        .ok_or(SdkError::Generic {
                            err: "Payment not found".into(),
                        })?;
                    let lsp_id = self.persister.get_lsp_id()?;

                    self.support_api
                        .report_payment_failure(node_state, payment, lsp_id, data.comment)
                        .await
                }
            },
            None => Err(SdkError::Generic {
                err: "Node state not found".into(),
            }),
        }
    }

    /// Retrieve the decrypted credentials from the node.
    pub async fn node_credentials(&self) -> SdkResult<Option<NodeCredentials>> {
        Ok(self.node_api.node_credentials().await?)
    }

    /// Retrieve the node state from the persistent storage.
    ///
    /// Fail if it could not be retrieved or if `None` was found.
    pub fn node_info(&self) -> SdkResult<NodeState> {
        self.persister.get_node_state()?.ok_or(SdkError::Generic {
            err: "Node info not found".into(),
        })
    }

    /// Sign given message with the private key of the node id. Returns a zbase
    /// encoded signature.
    pub async fn sign_message(&self, req: SignMessageRequest) -> SdkResult<SignMessageResponse> {
        let signature = self.node_api.sign_message(&req.message).await?;
        Ok(SignMessageResponse { signature })
    }

    /// Check whether given message was signed by the private key or the given
    /// pubkey and the signature (zbase encoded) is valid.
    pub async fn check_message(&self, req: CheckMessageRequest) -> SdkResult<CheckMessageResponse> {
        let is_valid = self
            .node_api
            .check_message(&req.message, &req.pubkey, &req.signature)
            .await?;
        Ok(CheckMessageResponse { is_valid })
    }

    /// Retrieve the node up to date BackupStatus
    pub fn backup_status(&self) -> SdkResult<BackupStatus> {
        let backup_time = self.persister.get_last_backup_time()?;
        let sync_request = self.persister.get_last_sync_request()?;
        Ok(BackupStatus {
            last_backup_time: backup_time,
            backed_up: sync_request.is_none(),
        })
    }

    /// Force running backup
    pub async fn backup(&self) -> SdkResult<()> {
        let (on_complete, mut on_complete_receiver) = mpsc::channel::<Result<()>>(1);
        let req = BackupRequest::with(on_complete, true);
        self.backup_watcher.request_backup(req).await?;

        match on_complete_receiver.recv().await {
            Some(res) => res.map_err(|e| SdkError::Generic {
                err: format!("Backup failed: {e}"),
            }),
            None => Err(SdkError::Generic {
                err: "Backup process failed to complete".into(),
            }),
        }
    }

    /// List payments matching the given filters, as retrieved from persistent storage
    pub async fn list_payments(&self, req: ListPaymentsRequest) -> SdkResult<Vec<Payment>> {
        Ok(self.persister.list_payments(req)?)
    }

    /// Fetch a specific payment by its hash.
    pub async fn payment_by_hash(&self, hash: String) -> SdkResult<Option<Payment>> {
        Ok(self.persister.get_payment_by_hash(&hash)?)
    }

    /// Set the external metadata of a payment as a valid JSON string
    pub async fn set_payment_metadata(&self, hash: String, metadata: String) -> SdkResult<()> {
        Ok(self
            .persister
            .set_payment_external_metadata(hash, metadata)?)
    }

    /// Redeem on-chain funds from closed channels to the specified on-chain address, with the given feerate
    pub async fn redeem_onchain_funds(
        &self,
        req: RedeemOnchainFundsRequest,
    ) -> RedeemOnchainResult<RedeemOnchainFundsResponse> {
        let txid = self
            .node_api
            .redeem_onchain_funds(req.to_address, req.sat_per_vbyte)
            .await?;
        self.sync().await?;
        Ok(RedeemOnchainFundsResponse { txid })
    }

    pub async fn prepare_redeem_onchain_funds(
        &self,
        req: PrepareRedeemOnchainFundsRequest,
    ) -> RedeemOnchainResult<PrepareRedeemOnchainFundsResponse> {
        let response = self.node_api.prepare_redeem_onchain_funds(req).await?;
        Ok(response)
    }

    /// Fetch live rates of fiat currencies, sorted by name
    pub async fn fetch_fiat_rates(&self) -> SdkResult<Vec<Rate>> {
        self.fiat_api.fetch_fiat_rates().await.map_err(Into::into)
    }

    /// List all supported fiat currencies for which there is a known exchange rate.
    /// List is sorted by the canonical name of the currency
    pub async fn list_fiat_currencies(&self) -> SdkResult<Vec<FiatCurrency>> {
        self.fiat_api
            .list_fiat_currencies()
            .await
            .map_err(Into::into)
    }

    /// List available LSPs that can be selected by the user
    pub async fn list_lsps(&self) -> SdkResult<Vec<LspInformation>> {
        self.lsp_api.list_lsps(self.node_info()?.id).await
    }

    /// Select the LSP to be used and provide inbound liquidity
    pub async fn connect_lsp(&self, lsp_id: String) -> SdkResult<()> {
        let lsp_pubkey = match self.list_lsps().await?.iter().find(|lsp| lsp.id == lsp_id) {
            Some(lsp) => lsp.pubkey.clone(),
            None => {
                return Err(SdkError::Generic {
                    err: format!("Unknown LSP: {lsp_id}"),
                })
            }
        };

        self.persister.set_lsp(lsp_id, Some(lsp_pubkey))?;
        self.sync().await?;
        if let Some(webhook_url) = self.persister.get_webhook_url()? {
            self.register_payment_notifications(webhook_url).await?
        }
        Ok(())
    }

    /// Get the current LSP's ID
    pub async fn lsp_id(&self) -> SdkResult<Option<String>> {
        Ok(self.persister.get_lsp_id()?)
    }

    /// Convenience method to look up [LspInformation] for a given LSP ID
    pub async fn fetch_lsp_info(&self, id: String) -> SdkResult<Option<LspInformation>> {
        get_lsp_by_id(self.persister.clone(), self.lsp_api.clone(), id.as_str()).await
    }

    /// Gets the fees required to open a channel for a given amount.
    /// If no channel is needed, returns 0. If a channel is needed, returns the required opening fees.
    pub async fn open_channel_fee(
        &self,
        req: OpenChannelFeeRequest,
    ) -> SdkResult<OpenChannelFeeResponse> {
        let lsp_info = self.lsp_info().await?;
        let fee_params = lsp_info
            .cheapest_open_channel_fee(req.expiry.unwrap_or(INVOICE_PAYMENT_FEE_EXPIRY_SECONDS))?
            .clone();

        let node_state = self.node_info()?;
        let fee_msat = req.amount_msat.map(|req_amount_msat| {
            match node_state.max_receivable_single_payment_amount_msat >= req_amount_msat {
                // In case we have enough inbound liquidity we return zero fee.
                true => 0,
                // Otherwise we need to calculate the fee for opening a new channel.
                false => fee_params.get_channel_fees_msat_for(req_amount_msat),
            }
        });

        Ok(OpenChannelFeeResponse {
            fee_msat,
            fee_params,
        })
    }

    /// Close all channels with the current LSP.
    ///
    /// Should be called  when the user wants to close all the channels.
    pub async fn close_lsp_channels(&self) -> SdkResult<Vec<String>> {
        let lsp = self.lsp_info().await?;
        let tx_ids = self.node_api.close_peer_channels(lsp.pubkey).await?;
        self.sync().await?;
        Ok(tx_ids)
    }

    /// Onchain receive swap API
    ///
    /// Create and start a new swap. A user-selected [OpeningFeeParams] can be optionally set in the argument.
    /// If set, and the operation requires a new channel, the SDK will try to use the given fee params.
    ///
    /// Since we only allow one in-progress swap this method will return error if there is currently
    /// a swap waiting for confirmation to be redeemed and by that complete the swap.
    /// In such case the [BreezServices::in_progress_swap] can be used to query the live swap status.
    ///
    /// The returned [SwapInfo] contains the created swap details. The channel opening fees are
    /// available at [SwapInfo::channel_opening_fees].
    pub async fn receive_onchain(
        &self,
        req: ReceiveOnchainRequest,
    ) -> ReceiveOnchainResult<SwapInfo> {
        if let Some(in_progress) = self.in_progress_swap().await? {
            return Err(ReceiveOnchainError::SwapInProgress{ err:format!(
                    "A swap was detected for address {}. Use in_progress_swap method to get the current swap state",
                    in_progress.bitcoin_address
                )});
        }
        let channel_opening_fees = req.opening_fee_params.unwrap_or(
            self.lsp_info()
                .await?
                .cheapest_open_channel_fee(SWAP_PAYMENT_FEE_EXPIRY_SECONDS)?
                .clone(),
        );

        let swap_info = self
            .btc_receive_swapper
            .create_swap_address(channel_opening_fees)
            .await?;
        if let Some(webhook_url) = self.persister.get_webhook_url()? {
            let address = &swap_info.bitcoin_address;
            info!("Registering for onchain tx notification for address {address}");
            self.register_onchain_tx_notification(address, &webhook_url)
                .await?;
        }
        Ok(swap_info)
    }

    /// Returns an optional in-progress [SwapInfo].
    /// A [SwapInfo] is in-progress if it is waiting for confirmation to be redeemed and complete the swap.
    pub async fn in_progress_swap(&self) -> SdkResult<Option<SwapInfo>> {
        let tip = self.chain_service.current_tip().await?;
        self.btc_receive_swapper.rescan_monitored_swaps(tip).await?;
        let in_progress = self.btc_receive_swapper.list_in_progress()?;
        if !in_progress.is_empty() {
            return Ok(Some(in_progress[0].clone()));
        }
        Ok(None)
    }

    /// Iterate all historical swap addresses and fetch their current status from the blockchain.
    /// The status is then updated in the persistent storage.
    pub async fn rescan_swaps(&self) -> SdkResult<()> {
        let tip = self.chain_service.current_tip().await?;
        self.btc_receive_swapper.rescan_swaps(tip).await?;
        Ok(())
    }

    /// Redeems an individual swap.
    ///
    /// To be used only in the context of mobile notifications, where the notification triggers
    /// an individual redeem.
    ///
    /// This is taken care of automatically in the context of typical SDK usage.
    pub async fn redeem_swap(&self, swap_address: String) -> SdkResult<()> {
        let tip = self.chain_service.current_tip().await?;
        self.btc_receive_swapper
            .refresh_swap_on_chain_status(swap_address.clone(), tip)
            .await?;
        self.btc_receive_swapper.redeem_swap(swap_address).await?;
        Ok(())
    }

    /// Lists current and historical swaps.
    ///
    /// Swaps can be filtered based on creation time and status.
    pub async fn list_swaps(&self, req: ListSwapsRequest) -> SdkResult<Vec<SwapInfo>> {
        Ok(self.persister.list_swaps(req)?)
    }

    /// Claims an individual reverse swap.
    ///
    /// To be used only in the context of mobile notifications, where the notification triggers
    /// an individual reverse swap to be claimed.
    ///
    /// This is taken care of automatically in the context of typical SDK usage.
    pub async fn claim_reverse_swap(&self, lockup_address: String) -> SdkResult<()> {
        Ok(self
            .btc_send_swapper
            .claim_reverse_swap(lockup_address)
            .await?)
    }

    /// Lookup the reverse swap fees (see [ReverseSwapServiceAPI::fetch_reverse_swap_fees]).
    ///
    /// If the request has the `send_amount_sat` set, the returned [ReverseSwapPairInfo] will have
    /// the total estimated fees for the reverse swap in its `total_estimated_fees`.
    ///
    /// If, in addition to that, the request has the `claim_tx_feerate` set as well, then
    /// - `fees_claim` will have the actual claim transaction fees, instead of an estimate, and
    /// - `total_estimated_fees` will have the actual total fees for the given parameters
    ///
    /// ### Errors
    ///
    /// If a `send_amount_sat` is specified in the `req`, but is outside the `min` and `max`,
    /// this will result in an error. If you are not sure what are the `min` and `max`, please call
    /// this with `send_amount_sat` as `None` first, then repeat the call with the desired amount.
    pub async fn fetch_reverse_swap_fees(
        &self,
        req: ReverseSwapFeesRequest,
    ) -> SdkResult<ReverseSwapPairInfo> {
        let mut res = self.btc_send_swapper.fetch_reverse_swap_fees().await?;

        if let Some(amt) = req.send_amount_sat {
            ensure_sdk!(amt <= res.max, SdkError::generic("Send amount is too high"));
            ensure_sdk!(amt >= res.min, SdkError::generic("Send amount is too low"));

            if let Some(claim_tx_feerate) = req.claim_tx_feerate {
                res.fees_claim = BTCSendSwap::calculate_claim_tx_fee(claim_tx_feerate)?;
            }

            let service_fee_sat = swap_out::get_service_fee_sat(amt, res.fees_percentage);
            res.total_fees = Some(service_fee_sat + res.fees_lockup + res.fees_claim);
        }

        Ok(res)
    }

    /// Returns the max amount that can be sent on-chain using the send_onchain method.
    /// The returned amount is the sum of the max amount that can be sent on each channel
    /// minus the expected fees.
    /// This is possible since the route to the swapper node is known in advance and is expected
    /// to consist of maximum 3 hops.
    #[deprecated(note = "use onchain_payment_limits instead")]
    pub async fn max_reverse_swap_amount(&self) -> SdkResult<MaxReverseSwapAmountResponse> {
        // fetch the last hop hints from the swapper
        let last_hop = self.btc_send_swapper.last_hop_for_payment().await?;
        info!("max_reverse_swap_amount last_hop={:?}", last_hop);
        // calculate the largest payment we can send over this route using maximum 3 hops
        // as follows:
        // User Node -> LSP Node -> Routing Node -> Swapper Node
        let max_to_pay = self
            .node_api
            .max_sendable_amount(
                Some(
                    hex::decode(&last_hop.src_node_id).map_err(|e| SdkError::Generic {
                        err: format!("Failed to decode hex node_id: {e}"),
                    })?,
                ),
                swap_out::reverseswap::MAX_PAYMENT_PATH_HOPS,
                Some(&last_hop),
            )
            .await?;

        // Sum the max amount per channel and return the result
        let total_msat: u64 = max_to_pay.into_iter().map(|m| m.amount_msat).sum();
        let total_sat = total_msat / 1000;
        Ok(MaxReverseSwapAmountResponse { total_sat })
    }

    /// Creates a reverse swap and attempts to pay the HODL invoice
    #[deprecated(note = "use pay_onchain instead")]
    pub async fn send_onchain(
        &self,
        req: SendOnchainRequest,
    ) -> Result<SendOnchainResponse, SendOnchainError> {
        let reverse_swap_info = self
            .pay_onchain_common(CreateReverseSwapArg::V1(req))
            .await?;
        Ok(SendOnchainResponse { reverse_swap_info })
    }

    /// Returns the blocking [ReverseSwapInfo]s that are in progress
    #[deprecated(note = "use in_progress_onchain_payments instead")]
    pub async fn in_progress_reverse_swaps(&self) -> SdkResult<Vec<ReverseSwapInfo>> {
        let full_rsis = self.btc_send_swapper.list_blocking().await?;

        let mut rsis = vec![];
        for full_rsi in full_rsis {
            let rsi = self
                .btc_send_swapper
                .convert_reverse_swap_info(full_rsi)
                .await?;
            rsis.push(rsi);
        }

        Ok(rsis)
    }

    /// list non-completed expired swaps that should be refunded by calling [BreezServices::refund]
    pub async fn list_refundables(&self) -> SdkResult<Vec<SwapInfo>> {
        Ok(self.btc_receive_swapper.list_refundables()?)
    }

    /// Prepares a refund transaction for a failed/expired swap.
    ///
    /// Can optionally be used before [BreezServices::refund] to know how much fees will be paid
    /// to perform the refund.
    pub async fn prepare_refund(
        &self,
        req: PrepareRefundRequest,
    ) -> SdkResult<PrepareRefundResponse> {
        Ok(self.btc_receive_swapper.prepare_refund_swap(req).await?)
    }

    /// Construct and broadcast a refund transaction for a failed/expired swap
    ///
    /// Returns the txid of the refund transaction.
    pub async fn refund(&self, req: RefundRequest) -> SdkResult<RefundResponse> {
        Ok(self.btc_receive_swapper.refund_swap(req).await?)
    }

    pub async fn onchain_payment_limits(&self) -> SdkResult<OnchainPaymentLimitsResponse> {
        let fee_info = self.btc_send_swapper.fetch_reverse_swap_fees().await?;
        debug!("Reverse swap pair info: {fee_info:?}");
        #[allow(deprecated)]
        let max_amt_current_channels = self.max_reverse_swap_amount().await?;
        debug!("Max send amount possible with current channels: {max_amt_current_channels:?}");

        Ok(OnchainPaymentLimitsResponse {
            min_sat: fee_info.min,
            max_sat: fee_info.max,
            max_payable_sat: max_amt_current_channels.total_sat,
        })
    }

    /// Supersedes [BreezServices::fetch_reverse_swap_fees]
    ///
    /// ### Errors
    ///
    /// - `OutOfRange`: This indicates the send amount is outside the range of minimum and maximum
    ///   values returned by [BreezServices::onchain_payment_limits]. When you get this error, please first call
    ///   [BreezServices::onchain_payment_limits] to get the new limits, before calling this method again.
    pub async fn prepare_onchain_payment(
        &self,
        req: PrepareOnchainPaymentRequest,
    ) -> Result<PrepareOnchainPaymentResponse, SendOnchainError> {
        let fees_claim = BTCSendSwap::calculate_claim_tx_fee(req.claim_tx_feerate)?;
        BTCSendSwap::validate_claim_tx_fee(fees_claim)?;

        let fee_info = self.btc_send_swapper.fetch_reverse_swap_fees().await?;

        // Calculate (send_amt, recv_amt) from the inputs and fees
        let fees_lockup = fee_info.fees_lockup;
        let p = fee_info.fees_percentage;
        let fees_claim = BTCSendSwap::calculate_claim_tx_fee(req.claim_tx_feerate)?;
        let (send_amt, recv_amt) = match req.amount_type {
            SwapAmountType::Send => {
                let temp_send_amt = req.amount_sat;
                let service_fees = swap_out::get_service_fee_sat(temp_send_amt, p);
                let total_fees = service_fees + fees_lockup + fees_claim;
                ensure_sdk!(
                    temp_send_amt > total_fees,
                    SendOnchainError::generic(
                        "Send amount is not high enough to account for all fees"
                    )
                );

                (temp_send_amt, temp_send_amt - total_fees)
            }
            SwapAmountType::Receive => {
                let temp_recv_amt = req.amount_sat;
                let send_amt_minus_service_fee = temp_recv_amt + fees_lockup + fees_claim;
                let temp_send_amt = swap_out::get_invoice_amount_sat(send_amt_minus_service_fee, p);

                (temp_send_amt, temp_recv_amt)
            }
        };

        let is_send_in_range = send_amt >= fee_info.min && send_amt <= fee_info.max;
        ensure_sdk!(is_send_in_range, SendOnchainError::OutOfRange);

        Ok(PrepareOnchainPaymentResponse {
            fees_hash: fee_info.fees_hash.clone(),
            fees_percentage: p,
            fees_lockup,
            fees_claim,
            sender_amount_sat: send_amt,
            recipient_amount_sat: recv_amt,
            total_fees: send_amt - recv_amt,
        })
    }

    /// Creates a reverse swap and attempts to pay the HODL invoice
    ///
    /// Supersedes [BreezServices::send_onchain]
    pub async fn pay_onchain(
        &self,
        req: PayOnchainRequest,
    ) -> Result<PayOnchainResponse, SendOnchainError> {
        ensure_sdk!(
            req.prepare_res.sender_amount_sat > req.prepare_res.recipient_amount_sat,
            SendOnchainError::generic("Send amount must be bigger than receive amount")
        );

        let reverse_swap_info = self
            .pay_onchain_common(CreateReverseSwapArg::V2(req))
            .await?;
        Ok(PayOnchainResponse { reverse_swap_info })
    }

    async fn pay_onchain_common(&self, req: CreateReverseSwapArg) -> SdkResult<ReverseSwapInfo> {
        ensure_sdk!(self.in_progress_onchain_payments().await?.is_empty(), SdkError::Generic { err:
            "You can only start a new one after after the ongoing ones finish. \
            Use the in_progress_reverse_swaps method to get an overview of currently ongoing reverse swaps".into(),
        });

        let full_rsi = self.btc_send_swapper.create_reverse_swap(req).await?;
        let reverse_swap_info = self
            .btc_send_swapper
            .convert_reverse_swap_info(full_rsi.clone())
            .await?;
        self.do_sync(false).await?;

        if let Some(webhook_url) = self.persister.get_webhook_url()? {
            let address = &full_rsi
                .get_lockup_address(self.config.network)?
                .to_string();
            info!("Registering for onchain tx notification for address {address}");
            self.register_onchain_tx_notification(address, &webhook_url)
                .await?;
        }
        Ok(reverse_swap_info)
    }

    /// Returns the blocking [ReverseSwapInfo]s that are in progress.
    ///
    /// Supersedes [BreezServices::in_progress_reverse_swaps]
    pub async fn in_progress_onchain_payments(&self) -> SdkResult<Vec<ReverseSwapInfo>> {
        #[allow(deprecated)]
        self.in_progress_reverse_swaps().await
    }

    /// Execute a command directly on the NodeAPI interface.
    /// Mainly used to debugging.
    pub async fn execute_dev_command(&self, command: String) -> SdkResult<String> {
        let dev_cmd_res = DevCommand::from_str(&command);

        match dev_cmd_res {
            Ok(dev_cmd) => match dev_cmd {
                DevCommand::GenerateDiagnosticData => self.generate_diagnostic_data().await,
            },
            Err(_) => Ok(crate::serializer::to_string_pretty(
                &self.node_api.execute_command(command).await?,
            )?),
        }
    }

    // Collects various user data from the node and the sdk storage.
    // This is used for debugging and support purposes only.
    pub async fn generate_diagnostic_data(&self) -> SdkResult<String> {
        let now_sec = SystemTime::now()
            .duration_since(UNIX_EPOCH)
            .map(|d| d.as_secs())
            .unwrap_or_default();
        let node_data = self
            .node_api
            .generate_diagnostic_data()
            .await
            .unwrap_or_else(|e| json!({"error": e.to_string()}));
        let sdk_data = self
            .generate_sdk_diagnostic_data()
            .await
            .unwrap_or_else(|e| json!({"error": e.to_string()}));
        let result = json!({
            "timestamp": now_sec,
            "node": node_data,
            "sdk": sdk_data
        });
        Ok(crate::serializer::to_string_pretty(&result)?)
    }

    /// This method sync the local state with the remote node state.
    /// The synced items are as follows:
    /// * node state - General information about the node and its liquidity status
    /// * channels - The list of channels and their status
    /// * payments - The incoming/outgoing payments
    pub async fn sync(&self) -> SdkResult<()> {
        Ok(self.do_sync(false).await?)
    }

    async fn do_sync(&self, match_local_balance: bool) -> Result<()> {
        let start = Instant::now();
        let node_pubkey = self.node_api.node_id().await?;
        self.connect_lsp_peer(node_pubkey).await?;

        // First query the changes since last sync state.
        let sync_state = self.persister.get_sync_state()?;
        let new_data = &self
            .node_api
            .pull_changed(sync_state.clone(), match_local_balance)
            .await?;

        debug!(
            "pull changed old state={:?} new state={:?}",
            sync_state, new_data.sync_state
        );

        // update node state and channels state
        self.persister.set_node_state(&new_data.node_state)?;

        let channels_before_update = self.persister.list_channels()?;
        self.persister.update_channels(&new_data.channels)?;
        let channels_after_update = self.persister.list_channels()?;

        // Fetch the static backup if needed and persist it
        if channels_before_update.len() != channels_after_update.len() {
            info!("fetching static backup file from node");
            let backup = self.node_api.static_backup().await?;
            self.persister.set_static_backup(backup)?;
        }

        //fetch closed_channel and convert them to Payment items.
        let mut closed_channel_payments: Vec<Payment> = vec![];
        for closed_channel in
            self.persister.list_channels()?.into_iter().filter(|c| {
                c.state == ChannelState::Closed || c.state == ChannelState::PendingClose
            })
        {
            let closed_channel_tx = self.closed_channel_to_transaction(closed_channel).await?;
            closed_channel_payments.push(closed_channel_tx);
        }

        // update both closed channels and lightning transaction payments
        let mut payments = closed_channel_payments;
        payments.extend(new_data.payments.clone());
        self.persister.insert_or_update_payments(&payments)?;
        let duration = start.elapsed();
        info!("Sync duration: {:?}", duration);

        // update the cached sync state
        self.persister.set_sync_state(&new_data.sync_state)?;
        self.notify_event_listeners(BreezEvent::Synced).await?;
        Ok(())
    }

    /// Connects to the selected LSP peer.
    /// This validates if the selected LSP is still in [`list_lsps`].
    /// If not or no LSP is selected, it selects the first LSP in [`list_lsps`].
    async fn connect_lsp_peer(&self, node_pubkey: String) -> SdkResult<()> {
        let lsps = self.lsp_api.list_lsps(node_pubkey).await?;
        let lsp = match self
            .persister
            .get_lsp_id()?
            .and_then(|lsp_id| lsps.iter().find(|lsp| lsp.id == lsp_id))
            .or_else(|| lsps.first())
        {
            Some(lsp) => lsp.clone(),
            None => return Ok(()),
        };

        self.persister.set_lsp(lsp.id, Some(lsp.pubkey.clone()))?;
        let node_state = match self.node_info() {
            Ok(node_state) => node_state,
            Err(_) => return Ok(()),
        };

        let node_id = lsp.pubkey;
        let address = lsp.host;
        let lsp_connected = node_state
            .connected_peers
            .iter()
            .any(|e| e == node_id.as_str());
        if !lsp_connected {
            debug!("connecting to lsp {}@{}", node_id.clone(), address.clone());
            self.node_api
                .connect_peer(node_id.clone(), address.clone())
                .await
                .map_err(|e| SdkError::ServiceConnectivity {
                    err: format!("(LSP: {node_id}) Failed to connect: {e}"),
                })?;
            debug!("connected to lsp {node_id}@{address}");
        }

        Ok(())
    }

    fn persist_pending_payment(
        &self,
        invoice: &LNInvoice,
        amount_msat: u64,
        label: Option<String>,
    ) -> Result<(), SendPaymentError> {
        self.persister.insert_or_update_payments(&[Payment {
            id: invoice.payment_hash.clone(),
            payment_type: PaymentType::Sent,
            payment_time: SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs() as i64,
            amount_msat,
            fee_msat: 0,
            status: PaymentStatus::Pending,
            error: None,
            description: invoice.description.clone(),
            details: PaymentDetails::Ln {
                data: LnPaymentDetails {
                    payment_hash: invoice.payment_hash.clone(),
                    label: label.unwrap_or_default(),
                    destination_pubkey: invoice.payee_pubkey.clone(),
                    payment_preimage: String::new(),
                    keysend: false,
                    bolt11: invoice.bolt11.clone(),
                    lnurl_success_action: None,
                    lnurl_pay_domain: None,
                    lnurl_pay_comment: None,
                    ln_address: None,
                    lnurl_metadata: None,
                    lnurl_withdraw_endpoint: None,
                    swap_info: None,
                    reverse_swap_info: None,
                    pending_expiration_block: None,
                    open_channel_bolt11: None,
                },
            },
            metadata: None,
        }])?;

        self.persister.insert_payment_external_info(
            &invoice.payment_hash,
            PaymentExternalInfo {
                lnurl_pay_success_action: None,
                lnurl_pay_domain: None,
                lnurl_pay_comment: None,
                lnurl_metadata: None,
                ln_address: None,
                lnurl_withdraw_endpoint: None,
                attempted_amount_msat: invoice.amount_msat.map_or(Some(amount_msat), |_| None),
                attempted_error: None,
            },
        )?;
        Ok(())
    }

    async fn on_payment_completed(
        &self,
        node_id: String,
        invoice: Option<LNInvoice>,
        label: Option<String>,
        payment_res: Result<Payment, SendPaymentError>,
    ) -> Result<Payment, SendPaymentError> {
        self.do_sync(false).await?;
        match payment_res {
            Ok(payment) => {
                self.notify_event_listeners(BreezEvent::PaymentSucceed {
                    details: payment.clone(),
                })
                .await?;
                Ok(payment)
            }
            Err(e) => {
                if let Some(invoice) = invoice.clone() {
                    self.persister.update_payment_attempted_error(
                        &invoice.payment_hash,
                        Some(e.to_string()),
                    )?;
                }
                self.notify_event_listeners(BreezEvent::PaymentFailed {
                    details: PaymentFailedData {
                        error: e.to_string(),
                        node_id,
                        invoice,
                        label,
                    },
                })
                .await?;
                Err(e)
            }
        }
    }

    async fn on_event(&self, e: BreezEvent) -> Result<()> {
        debug!("breez services got event {:?}", e);
        self.notify_event_listeners(e.clone()).await
    }

    async fn notify_event_listeners(&self, e: BreezEvent) -> Result<()> {
        if let Err(err) = self.btc_receive_swapper.on_event(e.clone()).await {
            debug!(
                "btc_receive_swapper failed to process event {:?}: {:?}",
                e, err
            )
        };
        if let Err(err) = self.btc_send_swapper.on_event(e.clone()).await {
            debug!(
                "btc_send_swapper failed to process event {:?}: {:?}",
                e, err
            )
        };

        if self.event_listener.is_some() {
            self.event_listener.as_ref().unwrap().on_event(e.clone())
        }
        Ok(())
    }

    /// Convenience method to look up LSP info based on current LSP ID
    pub async fn lsp_info(&self) -> SdkResult<LspInformation> {
        get_lsp(self.persister.clone(), self.lsp_api.clone()).await
    }

    /// Get the recommended fees for onchain transactions
    pub async fn recommended_fees(&self) -> SdkResult<RecommendedFees> {
        self.chain_service.recommended_fees().await
    }

    /// Get the full default config for a specific environment type
    pub fn default_config(
        env_type: EnvironmentType,
        api_key: String,
        node_config: NodeConfig,
    ) -> Config {
        match env_type {
            EnvironmentType::Production => Config::production(api_key, node_config),
            EnvironmentType::Staging => Config::staging(api_key, node_config),
        }
    }

    /// Get the static backup data from the persistent storage.
    /// This data enables the user to recover the node in an external core ligntning node.
    /// See here for instructions on how to recover using this data: <https://docs.corelightning.org/docs/backup-and-recovery#backing-up-using-static-channel-backup>
    pub fn static_backup(req: StaticBackupRequest) -> SdkResult<StaticBackupResponse> {
        let storage = SqliteStorage::new(req.working_dir);
        Ok(StaticBackupResponse {
            backup: storage.get_static_backup()?,
        })
    }

    /// Fetches the service health check from the support API.
    pub async fn service_health_check(api_key: String) -> SdkResult<ServiceHealthCheckResponse> {
        let support_api: Arc<dyn SupportAPI> = Arc::new(BreezServer::new(
            PRODUCTION_BREEZSERVER_URL.to_string(),
            Some(api_key),
        )?);

        support_api.service_health_check().await
    }

    /// Generates an url that can be used by a third part provider to buy Bitcoin with fiat currency.
    ///
    /// A user-selected [OpeningFeeParams] can be optionally set in the argument. If set, and the
    /// operation requires a new channel, the SDK will try to use the given fee params.
    pub async fn buy_bitcoin(
        &self,
        req: BuyBitcoinRequest,
    ) -> Result<BuyBitcoinResponse, ReceiveOnchainError> {
        let swap_info = self
            .receive_onchain(ReceiveOnchainRequest {
                opening_fee_params: req.opening_fee_params,
            })
            .await?;
        let url = self
            .buy_bitcoin_api
            .buy_bitcoin(req.provider, &swap_info, req.redirect_url)
            .await?;

        Ok(BuyBitcoinResponse {
            url,
            opening_fee_params: swap_info.channel_opening_fees,
        })
    }

    /// Starts the BreezServices background threads.
    ///
    /// Internal method. Should only be used as part of [BreezServices::start]
    async fn start_background_tasks(self: &Arc<BreezServices>) -> SdkResult<()> {
        // Detect hibernation
        self.detect_hibernation();

        // start the signer
        let (shutdown_signer_sender, signer_signer_receiver) = watch::channel(());
        self.start_signer(signer_signer_receiver).await;
        self.start_node_keep_alive(self.shutdown_receiver.clone())
            .await;

        // Sync node state
        match self.persister.get_node_state()? {
            Some(node) => {
                info!("Starting existing node {}", node.id);
                self.connect_lsp_peer(node.id).await?;
            }
            None => {
                // In case it is a first run we sync in foreground to get the node state.
                info!("First run, syncing in foreground");
                self.sync().await?;
                info!("First run, finished running syncing in foreground");
            }
        }

        // start backup watcher
        self.start_backup_watcher().await?;

        //track backup events
        self.track_backup_events().await;

        //track swap events
        self.track_swap_events().await;

        // track paid invoices
        self.track_invoices().await;

        // track new blocks
        self.track_new_blocks().await;

        // track logs
        self.track_logs().await;

        // Stop signer on shutdown
        let mut shutdown_receiver = self.shutdown_receiver.clone();
        tokio::spawn(async move {
            _ = shutdown_receiver.changed().await;
            _ = shutdown_signer_sender.send(());
            debug!("Received the signal to exit signer");
        });

        self.init_chainservice_urls().await?;

        Ok(())
    }

    fn detect_hibernation(self: &Arc<BreezServices>) {
        let cloned = Arc::clone(self);
        tokio::spawn(async move {
            loop {
                let now = SystemTime::now();
                tokio::time::sleep(DETECT_HIBERNATE_SLEEP_DURATION).await;
                let elapsed = match now.elapsed() {
                    Ok(elapsed) => elapsed,
                    Err(e) => {
                        error!("track_hibernation failed with: {:?}", e);
                        continue;
                    }
                };

                if elapsed
                    .saturating_sub(DETECT_HIBERNATE_SLEEP_DURATION)
                    .ge(&DETECT_HIBERNATE_MAX_OFFSET)
                {
                    // Reconnect node api before notifying anything else, to
                    // ensure there are no races reconnecting dependant
                    // services.
                    debug!(
                        "Hibernation detected, time diff {}s, reconnecting node api.",
                        elapsed.as_secs_f32()
                    );
                    cloned.node_api.reconnect().await;

                    // Now notify dependant services.
                    debug!("Hibernation detected, notifying services.");
                    let _ = cloned.hibernation_sender.send(());
                }
            }
        });
    }

    async fn start_signer(self: &Arc<BreezServices>, mut shutdown_receiver: watch::Receiver<()>) {
        let mut hibernation_receiver = self.hibernation_receiver.clone();
        let node_api = self.node_api.clone();

        tokio::spawn(async move {
            loop {
                let (tx, rx) = mpsc::channel(1);
                let is_shutdown = tokio::select! {
                    _ = node_api.start_signer(rx) => {
                        tokio::time::sleep(Duration::from_secs(1)).await;
                        false
                    }

                    _ = shutdown_receiver.changed() => {
                        true
                    }

                    _ = hibernation_receiver.changed() => {
                        // NOTE: The node api is reconnected already inside the
                        //       detect_hibernation function, to avoid races.
                        false
                    }
                };

                debug!("shutting down signer");
                _ = tx.send(());

                if is_shutdown {
                    return;
                }
            }
        });
    }

    async fn start_node_keep_alive(
        self: &Arc<BreezServices>,
        shutdown_receiver: watch::Receiver<()>,
    ) {
        let cloned = self.clone();
        tokio::spawn(async move {
            cloned.node_api.start_keep_alive(shutdown_receiver).await;
        });
    }

    async fn start_backup_watcher(self: &Arc<BreezServices>) -> Result<()> {
        self.backup_watcher
            .start(self.shutdown_receiver.clone())
            .await
            .map_err(|e| anyhow!("Failed to start backup watcher: {e}"))?;

        // Restore backup state and request backup on start if needed
        let force_backup = self
            .persister
            .get_last_sync_version()
            .map_err(|e| anyhow!("Failed to read last sync version: {e}"))?
            .is_none();
        self.backup_watcher
            .request_backup(BackupRequest::new(force_backup))
            .await
            .map_err(|e| anyhow!("Failed to request backup: {e}"))
    }

    async fn track_backup_events(self: &Arc<BreezServices>) {
        let cloned = self.clone();
        tokio::spawn(async move {
            let mut events_stream = cloned.backup_watcher.subscribe_events();
            let mut shutdown_receiver = cloned.shutdown_receiver.clone();
            loop {
                tokio::select! {
                    backup_event = events_stream.recv() => {
                        if let Ok(e) = backup_event {
                            if let Err(err) = cloned.notify_event_listeners(e).await {
                                error!("error handling backup event: {:?}", err);
                            }
                        }
                        let backup_status = cloned.backup_status();
                        info!("backup status: {:?}", backup_status);
                    },
                    _ = shutdown_receiver.changed() => {
                        debug!("Backup watcher task completed");
                        break;
                    }
                }
            }
        });
    }

    async fn track_swap_events(self: &Arc<BreezServices>) {
        let cloned = self.clone();
        tokio::spawn(async move {
            let mut swap_events_stream = cloned.btc_receive_swapper.subscribe_status_changes();
            let mut rev_swap_events_stream = cloned.btc_send_swapper.subscribe_status_changes();
            let mut shutdown_receiver = cloned.shutdown_receiver.clone();
            loop {
                tokio::select! {
                    swap_event = swap_events_stream.recv() => {
                        if let Ok(e) = swap_event {
                            if let Err(err) = cloned.notify_event_listeners(e).await {
                                error!("error handling swap event: {:?}", err);
                            }
                        }
                    },
                    rev_swap_event = rev_swap_events_stream.recv() => {
                        if let Ok(e) = rev_swap_event {
                            if let Err(err) = cloned.notify_event_listeners(e).await {
                                error!("error handling reverse swap event: {:?}", err);
                            }
                        }
                    },
                    _ = shutdown_receiver.changed() => {
                        debug!("Swap events handling task completed");
                        break;
                    }
                }
            }
        });
    }

    async fn track_invoices(self: &Arc<BreezServices>) {
        let cloned = self.clone();
        tokio::spawn(async move {
            let mut shutdown_receiver = cloned.shutdown_receiver.clone();
            let mut reconnect_receiver = cloned.hibernation_receiver.clone();
            loop {
                if shutdown_receiver.has_changed().unwrap_or(true) {
                    return;
                }
                let mut invoice_stream = match cloned.node_api.stream_incoming_payments().await {
                    Ok(invoice_stream) => invoice_stream,
                    Err(e) => {
                        warn!("stream incoming payments returned error: {:?}", e);
                        sleep(Duration::from_secs(1)).await;
                        continue;
                    }
                };

                loop {
                    let paid_invoice_res = tokio::select! {
                        paid_invoice_res = invoice_stream.message() => {
                            paid_invoice_res
                        }

                        _ = shutdown_receiver.changed() => {
                            debug!("Invoice tracking task has completed");
                            return;
                        }

                        _ = reconnect_receiver.changed() => {
                            debug!("Reconnect hibernation: track invoices");
                            break;
                        }
                    };

                    let i = match paid_invoice_res {
                        Ok(Some(i)) => i,
                        Ok(None) => {
                            debug!("invoice stream got None");
                            break;
                        }
                        Err(err) => {
                            debug!("invoice stream got error: {:?}", err);
                            break;
                        }
                    };

                    debug!("invoice stream got new invoice");
                    let p = match i.details {
                        Some(incoming_payment::Details::Offchain(p)) => p,
                        _ => continue,
                    };

                    let mut payment: Option<crate::models::Payment> = p.clone().try_into().ok();
                    if let Some(ref p) = payment {
                        let res = cloned.persister.insert_or_update_payments(&vec![p.clone()]);
                        debug!("paid invoice was added to payments list {res:?}");
                        if let Ok(Some(mut node_info)) = cloned.persister.get_node_state() {
                            node_info.channels_balance_msat += p.amount_msat;
                            let res = cloned.persister.set_node_state(&node_info);
                            debug!("channel balance was updated {res:?}");
                        }
                        payment = cloned
                            .persister
                            .get_payment_by_hash(&p.id)
                            .unwrap_or(payment);
                    }
                    _ = cloned
                        .on_event(BreezEvent::InvoicePaid {
                            details: InvoicePaidDetails {
                                payment_hash: hex::encode(p.payment_hash),
                                bolt11: p.bolt11,
                                payment,
                            },
                        })
                        .await;
                    if let Err(e) = cloned.do_sync(true).await {
                        error!("failed to sync after paid invoice: {:?}", e);
                    }
                }
                sleep(Duration::from_secs(1)).await;
            }
        });
    }

    async fn track_logs(self: &Arc<BreezServices>) {
        let cloned = self.clone();
        tokio::spawn(async move {
            let mut shutdown_receiver = cloned.shutdown_receiver.clone();
            let mut reconnect_receiver = cloned.hibernation_receiver.clone();
            loop {
                if shutdown_receiver.has_changed().unwrap_or(true) {
                    return;
                }
                let mut log_stream = match cloned.node_api.stream_log_messages().await {
                    Ok(log_stream) => log_stream,
                    Err(e) => {
                        warn!("stream log messages returned error: {:?}", e);
                        sleep(Duration::from_secs(1)).await;
                        continue;
                    }
                };

                loop {
                    let log_message_res = tokio::select! {
                        log_message_res = log_stream.message() => {
                            log_message_res
                        }

                        _ = shutdown_receiver.changed() => {
                            debug!("Track logs task has completed");
                            return;
                        }

                        _ = reconnect_receiver.changed() => {
                            debug!("Reconnect hibernation: track logs");
                            break;
                        }
                    };

                    match log_message_res {
                        Ok(Some(l)) => info!("node-logs: {}", l.line),
                        Ok(None) => {
                            // stream is closed, renew it
                            break;
                        }
                        Err(err) => {
                            debug!("failed to process log entry {:?}", err);
                            break;
                        }
                    };
                }

                sleep(Duration::from_secs(1)).await;
            }
        });
    }

    async fn track_new_blocks(self: &Arc<BreezServices>) {
        let cloned = self.clone();
        tokio::spawn(async move {
            let mut current_block: u32 = 0;
            let mut shutdown_receiver = cloned.shutdown_receiver.clone();
            let mut interval = tokio::time::interval(Duration::from_secs(30));
            interval.set_missed_tick_behavior(MissedTickBehavior::Skip);
            loop {
                tokio::select! {
                    _ = interval.tick() => { }

                    _ = shutdown_receiver.changed() => {
                        debug!("New blocks task has completed");
                        return;
                    }
                }

                let next_block = match cloned.chain_service.current_tip().await {
                    Ok(next_block) => next_block,
                    Err(e) => {
                        error!("failed to fetch next block {}", e);
                        continue;
                    }
                };

                debug!("got tip {:?}", next_block);
                if next_block > current_block {
                    _ = cloned.sync().await;
                    _ = cloned
                        .on_event(BreezEvent::NewBlock { block: next_block })
                        .await;
                }
                current_block = next_block
            }
        });
    }

    async fn init_chainservice_urls(&self) -> Result<()> {
        let breez_server = Arc::new(BreezServer::new(
            PRODUCTION_BREEZSERVER_URL.to_string(),
            None,
        )?);
        let persister = &self.persister;

        let cloned_breez_server = breez_server.clone();
        let cloned_persister = persister.clone();
        tokio::spawn(async move {
            match cloned_breez_server.fetch_mempoolspace_urls().await {
                Ok(fresh_urls) => {
                    if let Err(e) = cloned_persister.set_mempoolspace_base_urls(fresh_urls) {
                        error!("Failed to cache mempool.space URLs: {e}");
                    }
                }
                Err(e) => error!("Failed to fetch mempool.space URLs: {e}"),
            }
        });

        Ok(())
    }

    /// Configures a global SDK logger that will log to file and will forward log events to
    /// an optional application-specific logger.
    ///
    /// If called, it should be called before any SDK methods (for example, before `connect`).
    ///
    /// It must be called only once in the application lifecycle. Alternatively, If the application
    /// already uses a globally-registered logger, this method shouldn't be called at all.
    ///
    /// ### Arguments
    ///
    /// - `log_dir`: Location where the the SDK log file will be created. The directory must already exist.
    ///
    /// - `app_logger`: Optional application logger.
    ///
    /// If the application is to use it's own logger, but would also like the SDK to log SDK-specific
    /// log output to a file in the configured `log_dir`, then do not register the
    /// app-specific logger as a global logger and instead call this method with the app logger as an arg.
    ///
    /// ### Logging Configuration
    ///
    /// Setting `breez_sdk_core::input_parser=debug` will include in the logs the raw payloads received
    /// when interacting with JSON endpoints, for example those used during all LNURL workflows.
    ///
    /// ### Errors
    ///
    /// An error is thrown if the log file cannot be created in the working directory.
    ///
    /// An error is thrown if a global logger is already configured.
    pub fn init_logging(log_dir: &str, app_logger: Option<Box<dyn log::Log>>) -> Result<()> {
        let target_log_file = Box::new(
            OpenOptions::new()
                .create(true)
                .append(true)
                .open(format!("{log_dir}/sdk.log"))
                .map_err(|e| anyhow!("Can't create log file: {e}"))?,
        );
        let logger = env_logger::Builder::new()
            .target(env_logger::Target::Pipe(target_log_file))
            .parse_filters(
                r#"
                info,
                breez_sdk_core=debug,
                sdk_common=debug,
                gl_client=debug,
                h2=warn,
                hyper=warn,
                lightning_signer=warn,
                reqwest=warn,
                rustls=warn,
                rustyline=warn,
                vls_protocol_signer=warn
            "#,
            )
            .format(|buf, record| {
                writeln!(
                    buf,
                    "[{} {} {}:{}] {}",
                    Local::now().format("%Y-%m-%d %H:%M:%S%.3f"),
                    record.level(),
                    record.module_path().unwrap_or("unknown"),
                    record.line().unwrap_or(0),
                    record.args()
                )
            })
            .build();

        let global_logger = GlobalSdkLogger {
            logger,
            log_listener: app_logger,
        };

        log::set_boxed_logger(Box::new(global_logger))
            .map_err(|e| anyhow!("Failed to set global logger: {e}"))?;
        log::set_max_level(LevelFilter::Trace);

        Ok(())
    }

    async fn lookup_chain_service_closing_outspend(
        &self,
        channel: crate::models::Channel,
    ) -> Result<Option<Outspend>> {
        match channel.funding_outnum {
            None => Ok(None),
            Some(outnum) => {
                // Find the output tx that was used to fund the channel
                let outspends = self
                    .chain_service
                    .transaction_outspends(channel.funding_txid.clone())
                    .await?;

                Ok(outspends.get(outnum as usize).cloned())
            }
        }
    }

    /// Chain service lookup of relevant channel closing fields (closed_at, closing_txid).
    ///
    /// Should be used sparingly because it involves a network lookup.
    async fn lookup_channel_closing_data(
        &self,
        channel: &crate::models::Channel,
    ) -> Result<(Option<u64>, Option<String>)> {
        let maybe_outspend_res = self
            .lookup_chain_service_closing_outspend(channel.clone())
            .await;
        let maybe_outspend: Option<Outspend> = match maybe_outspend_res {
            Ok(s) => s,
            Err(e) => {
                error!("Failed to lookup channel closing data: {:?}", e);
                None
            }
        };

        let maybe_closed_at = maybe_outspend
            .clone()
            .and_then(|outspend| outspend.status)
            .and_then(|s| s.block_time);
        let maybe_closing_txid = maybe_outspend.and_then(|outspend| outspend.txid);

        Ok((maybe_closed_at, maybe_closing_txid))
    }

    async fn closed_channel_to_transaction(
        &self,
        channel: crate::models::Channel,
    ) -> Result<Payment> {
        let (payment_time, closing_txid) = match (channel.closed_at, channel.closing_txid.clone()) {
            (Some(closed_at), Some(closing_txid)) => (closed_at as i64, Some(closing_txid)),
            (_, _) => {
                // If any of the two closing-related fields are empty, we look them up and persist them
                let (maybe_closed_at, maybe_closing_txid) =
                    self.lookup_channel_closing_data(&channel).await?;

                let processed_closed_at = match maybe_closed_at {
                    None => {
                        warn!("Blocktime could not be determined for from closing outspend, defaulting closed_at to epoch time");
                        SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs()
                    }
                    Some(block_time) => block_time,
                };

                let mut updated_channel = channel.clone();
                updated_channel.closed_at = Some(processed_closed_at);
                // If no closing txid found, we persist it as None, so it will be looked-up next time
                updated_channel.closing_txid.clone_from(&maybe_closing_txid);
                self.persister.insert_or_update_channel(updated_channel)?;

                (processed_closed_at as i64, maybe_closing_txid)
            }
        };

        Ok(Payment {
            id: channel.funding_txid.clone(),
            payment_type: PaymentType::ClosedChannel,
            payment_time,
            amount_msat: channel.local_balance_msat,
            fee_msat: 0,
            status: match channel.state {
                ChannelState::PendingClose => PaymentStatus::Pending,
                _ => PaymentStatus::Complete,
            },
            description: Some("Closed Channel".to_string()),
            details: PaymentDetails::ClosedChannel {
                data: ClosedChannelPaymentDetails {
                    short_channel_id: channel.short_channel_id,
                    state: channel.state,
                    funding_txid: channel.funding_txid,
                    closing_txid,
                },
            },
            error: None,
            metadata: None,
        })
    }

    /// Register for webhook callbacks at the given `webhook_url`.
    ///
    /// More specifically, it registers for the following types of callbacks:
    /// - a payment is received
    /// - a swap tx is confirmed
    ///
    /// This method should be called every time the application is started and when the `webhook_url` changes.
    /// For example, if the `webhook_url` contains a push notification token and the token changes after
    /// the application was started, then this method should be called to register for callbacks at
    /// the new correct `webhook_url`. To unregister a webhook call [BreezServices::unregister_webhook].
    pub async fn register_webhook(&self, webhook_url: String) -> SdkResult<()> {
        info!("Registering for webhook notifications");
        let is_new_webhook_url = match self.persister.get_webhook_url()? {
            None => true,
            Some(cached_webhook_url) => cached_webhook_url != webhook_url,
        };
        match is_new_webhook_url {
            false => debug!("Webhook URL not changed, no need to (re-)register for monitored swap tx notifications"),
            true => {
                for swap in self.persister.list_swaps(ListSwapsRequest {
                    status: Some(SwapStatus::unexpired()),
                    ..Default::default()
                })?
                {
                    let swap_address = &swap.bitcoin_address;
                    info!("Found non-refundable monitored swap with address {swap_address}, registering for onchain tx notifications");
                    self.register_onchain_tx_notification(swap_address, &webhook_url)
                        .await?;
                }

                for rev_swap in self
                    .btc_send_swapper
                    .list_monitored()
                    .await?
                    .iter()
                {
                    let lockup_address = &rev_swap.get_lockup_address(self.config.network)?.to_string();
                    info!("Found monitored reverse swap with address {lockup_address}, registering for onchain tx notifications");
                    self.register_onchain_tx_notification(lockup_address, &webhook_url)
                        .await?;
                }
            }
        }

        // Register for LN payment notifications on every call, since these webhook registrations
        // timeout after 14 days of not being used
        self.register_payment_notifications(webhook_url.clone())
            .await?;

        // Only cache the webhook URL if callbacks were successfully registered for it.
        // If any step above failed, not caching it allows the caller to re-trigger the registrations
        // by calling the method again
        self.persister.set_webhook_url(webhook_url)?;
        Ok(())
    }

    /// Unregister webhook callbacks for the given `webhook_url`.
    ///
    /// When called, it unregisters for the following types of callbacks:
    /// - a payment is received
    /// - a swap tx is confirmed
    ///
    /// This can be called when callbacks are no longer needed or the `webhook_url`
    /// has changed such that it needs unregistering. For example, the token is valid but the locale changes.
    /// To register a webhook call [BreezServices::register_webhook].
    pub async fn unregister_webhook(&self, webhook_url: String) -> SdkResult<()> {
        info!("Unregistering for webhook notifications");
        self.unregister_onchain_tx_notifications(&webhook_url)
            .await?;
        self.unregister_payment_notifications(webhook_url).await?;
        self.persister.remove_webhook_url()?;
        Ok(())
    }

    /// Registers for lightning payment notifications. When a payment is intercepted by the LSP
    /// to this node, a callback will be triggered to the `webhook_url`.
    ///
    /// Note: these notifications are registered for all LSPs (active and historical) with whom
    /// we have a channel.
    async fn register_payment_notifications(&self, webhook_url: String) -> SdkResult<()> {
        let message = webhook_url.clone();
        let sign_request = SignMessageRequest { message };
        let sign_response = self.sign_message(sign_request).await?;

        // Attempt register call for all relevant LSPs
        let mut error_found = false;
        for lsp_info in get_notification_lsps(
            self.persister.clone(),
            self.lsp_api.clone(),
            self.node_api.clone(),
        )
        .await?
        {
            let lsp_id = lsp_info.id;
            let res = self
                .lsp_api
                .register_payment_notifications(
                    lsp_id.clone(),
                    lsp_info.lsp_pubkey,
                    webhook_url.clone(),
                    sign_response.signature.clone(),
                )
                .await;
            if res.is_err() {
                error_found = true;
                warn!("Failed to register notifications for LSP {lsp_id}: {res:?}");
            }
        }

        match error_found {
            true => Err(SdkError::generic(
                "Failed to register notifications for at least one LSP, see logs for details",
            )),
            false => Ok(()),
        }
    }

    /// Unregisters lightning payment notifications with the current LSP for the `webhook_url`.
    ///
    /// Note: these notifications are unregistered for all LSPs (active and historical) with whom
    /// we have a channel.
    async fn unregister_payment_notifications(&self, webhook_url: String) -> SdkResult<()> {
        let message = webhook_url.clone();
        let sign_request = SignMessageRequest { message };
        let sign_response = self.sign_message(sign_request).await?;

        // Attempt register call for all relevant LSPs
        let mut error_found = false;
        for lsp_info in get_notification_lsps(
            self.persister.clone(),
            self.lsp_api.clone(),
            self.node_api.clone(),
        )
        .await?
        {
            let lsp_id = lsp_info.id;
            let res = self
                .lsp_api
                .unregister_payment_notifications(
                    lsp_id.clone(),
                    lsp_info.lsp_pubkey,
                    webhook_url.clone(),
                    sign_response.signature.clone(),
                )
                .await;
            if res.is_err() {
                error_found = true;
                warn!("Failed to un-register notifications for LSP {lsp_id}: {res:?}");
            }
        }

        match error_found {
            true => Err(SdkError::generic(
                "Failed to un-register notifications for at least one LSP, see logs for details",
            )),
            false => Ok(()),
        }
    }

    /// Registers for a onchain tx notification. When a new transaction to the specified `address`
    /// is confirmed, a callback will be triggered to the `webhook_url`.
    async fn register_onchain_tx_notification(
        &self,
        address: &str,
        webhook_url: &str,
    ) -> SdkResult<()> {
        get_reqwest_client()?
            .post(format!("{}/api/v1/register", self.config.chainnotifier_url))
            .header(CONTENT_TYPE, "application/json")
            .body(Body::from(
                json!({
                    "address": address,
                    "webhook": webhook_url
                })
                .to_string(),
            ))
            .send()
            .await
            .map(|_| ())
            .map_err(|e| SdkError::ServiceConnectivity {
                err: format!("Failed to register for tx confirmation notifications: {e}"),
            })
    }

    /// Unregisters all onchain tx notifications for the `webhook_url`.
    async fn unregister_onchain_tx_notifications(&self, webhook_url: &str) -> SdkResult<()> {
        get_reqwest_client()?
            .post(format!(
                "{}/api/v1/unregister",
                self.config.chainnotifier_url
            ))
            .header(CONTENT_TYPE, "application/json")
            .body(Body::from(
                json!({
                    "webhook": webhook_url
                })
                .to_string(),
            ))
            .send()
            .await
            .map(|_| ())
            .map_err(|e| SdkError::ServiceConnectivity {
                err: format!("Failed to unregister for tx confirmation notifications: {e}"),
            })
    }

    async fn generate_sdk_diagnostic_data(&self) -> SdkResult<Value> {
        let (sdk_version, sdk_git_hash) = Self::get_sdk_version();
        let version = format!("SDK v{sdk_version} ({sdk_git_hash})");
        let state = crate::serializer::value::to_value(&self.persister.get_node_state()?)?;
        let payments = crate::serializer::value::to_value(
            &self
                .persister
                .list_payments(ListPaymentsRequest::default())?,
        )?;
        let channels = crate::serializer::value::to_value(&self.persister.list_channels()?)?;
        let settings = crate::serializer::value::to_value(&self.persister.list_settings()?)?;
        let reverse_swaps = crate::serializer::value::to_value(
            self.persister.list_reverse_swaps().map(sanitize_vec)?,
        )?;
        let swaps = crate::serializer::value::to_value(
            self.persister
                .list_swaps(ListSwapsRequest::default())
                .map(sanitize_vec)?,
        )?;
        let lsp_id = crate::serializer::value::to_value(&self.persister.get_lsp_id()?)?;

        let res = json!({
            "version": version,
            "node_state": state,
            "payments": payments,
            "channels": channels,
            "settings": settings,
            "reverse_swaps": reverse_swaps,
            "swaps": swaps,
            "lsp_id": lsp_id,
        });
        Ok(res)
    }
}

struct GlobalSdkLogger {
    /// SDK internal logger, which logs to file
    logger: env_logger::Logger,
    /// Optional external log listener, that can receive a stream of log statements
    log_listener: Option<Box<dyn log::Log>>,
}
impl log::Log for GlobalSdkLogger {
    fn enabled(&self, metadata: &Metadata) -> bool {
        metadata.level() <= log::Level::Trace
    }

    fn log(&self, record: &Record) {
        if self.enabled(record.metadata()) {
            self.logger.log(record);

            if let Some(s) = &self.log_listener.as_ref() {
                if s.enabled(record.metadata()) {
                    s.log(record);
                }
            }
        }
    }

    fn flush(&self) {}
}

/// A helper struct to configure and build BreezServices
struct BreezServicesBuilder {
    config: Config,
    node_api: Option<Arc<dyn NodeAPI>>,
    backup_transport: Option<Arc<dyn BackupTransport>>,
    seed: Option<Vec<u8>>,
    lsp_api: Option<Arc<dyn LspAPI>>,
    fiat_api: Option<Arc<dyn FiatAPI>>,
    persister: Option<Arc<SqliteStorage>>,
    support_api: Option<Arc<dyn SupportAPI>>,
    swapper_api: Option<Arc<dyn SwapperAPI>>,
    /// Reverse swap functionality on the Breez Server
    reverse_swapper_api: Option<Arc<dyn ReverseSwapperRoutingAPI>>,
    /// Reverse swap functionality on the 3rd party reverse swap service
    reverse_swap_service_api: Option<Arc<dyn ReverseSwapServiceAPI>>,
    buy_bitcoin_api: Option<Arc<dyn BuyBitcoinApi>>,
}

#[allow(dead_code)]
impl BreezServicesBuilder {
    pub fn new(config: Config) -> BreezServicesBuilder {
        BreezServicesBuilder {
            config,
            node_api: None,
            seed: None,
            lsp_api: None,
            fiat_api: None,
            persister: None,
            support_api: None,
            swapper_api: None,
            reverse_swapper_api: None,
            reverse_swap_service_api: None,
            buy_bitcoin_api: None,
            backup_transport: None,
        }
    }

    pub fn node_api(&mut self, node_api: Arc<dyn NodeAPI>) -> &mut Self {
        self.node_api = Some(node_api);
        self
    }

    pub fn lsp_api(&mut self, lsp_api: Arc<dyn LspAPI>) -> &mut Self {
        self.lsp_api = Some(lsp_api.clone());
        self
    }

    pub fn fiat_api(&mut self, fiat_api: Arc<dyn FiatAPI>) -> &mut Self {
        self.fiat_api = Some(fiat_api.clone());
        self
    }

    pub fn buy_bitcoin_api(&mut self, buy_bitcoin_api: Arc<dyn BuyBitcoinApi>) -> &mut Self {
        self.buy_bitcoin_api = Some(buy_bitcoin_api.clone());
        self
    }

    pub fn persister(&mut self, persister: Arc<SqliteStorage>) -> &mut Self {
        self.persister = Some(persister);
        self
    }

    pub fn support_api(&mut self, support_api: Arc<dyn SupportAPI>) -> &mut Self {
        self.support_api = Some(support_api.clone());
        self
    }

    pub fn swapper_api(&mut self, swapper_api: Arc<dyn SwapperAPI>) -> &mut Self {
        self.swapper_api = Some(swapper_api.clone());
        self
    }

    pub fn reverse_swapper_api(
        &mut self,
        reverse_swapper_api: Arc<dyn ReverseSwapperRoutingAPI>,
    ) -> &mut Self {
        self.reverse_swapper_api = Some(reverse_swapper_api.clone());
        self
    }

    pub fn reverse_swap_service_api(
        &mut self,
        reverse_swap_service_api: Arc<dyn ReverseSwapServiceAPI>,
    ) -> &mut Self {
        self.reverse_swap_service_api = Some(reverse_swap_service_api.clone());
        self
    }

    pub fn backup_transport(&mut self, backup_transport: Arc<dyn BackupTransport>) -> &mut Self {
        self.backup_transport = Some(backup_transport.clone());
        self
    }

    pub fn seed(&mut self, seed: Vec<u8>) -> &mut Self {
        self.seed = Some(seed);
        self
    }

    pub async fn build(
        &self,
        restore_only: Option<bool>,
        event_listener: Option<Box<dyn EventListener>>,
    ) -> BreezServicesResult<Arc<BreezServices>> {
        if self.node_api.is_none() && self.seed.is_none() {
            return Err(ConnectError::Generic {
                err: "Either node_api or both credentials and seed should be provided".into(),
            });
        }

        let (hibernation_sender, hibernation_receiver) = watch::channel(());
        // The storage is implemented via sqlite.
        let persister = self
            .persister
            .clone()
            .unwrap_or_else(|| Arc::new(SqliteStorage::new(self.config.working_dir.clone())));
        persister.init()?;

        let mut node_api = self.node_api.clone();
        let mut backup_transport = self.backup_transport.clone();
        if node_api.is_none() {
            let greenlight = Greenlight::connect(
                self.config.clone(),
                self.seed.clone().unwrap(),
                restore_only,
                persister.clone(),
            )
            .await?;
            let gl_arc = Arc::new(greenlight);
            node_api = Some(gl_arc.clone());
            if backup_transport.is_none() {
                backup_transport = Some(Arc::new(GLBackupTransport { inner: gl_arc }));
            }
        }

        if backup_transport.is_none() {
            return Err(ConnectError::Generic {
                err: "State synchronizer should be provided".into(),
            });
        }

        let unwrapped_node_api = node_api.unwrap();
        let unwrapped_backup_transport = backup_transport.unwrap();

        // create the backup encryption key and then the backup watcher
        let backup_encryption_key = unwrapped_node_api
            .derive_bip32_key(vec![
                ChildNumber::from_hardened_idx(139)?,
                ChildNumber::from(0),
            ])
            .await?;

        // We calculate the legacy key as a fallback for the case where the backup is still
        // encrypted with the old key.
        let legacy_backup_encryption_key = unwrapped_node_api
            .legacy_derive_bip32_key(vec![
                ChildNumber::from_hardened_idx(139)?,
                ChildNumber::from(0),
            ])
            .await?;
        let backup_watcher = BackupWatcher::new(
            self.config.clone(),
            unwrapped_backup_transport.clone(),
            persister.clone(),
            backup_encryption_key.to_priv().to_bytes(),
            legacy_backup_encryption_key.to_priv().to_bytes(),
        );

        // breez_server provides both FiatAPI & LspAPI implementations
        let breez_server = Arc::new(
            BreezServer::new(self.config.breezserver.clone(), self.config.api_key.clone())
                .map_err(|e| ConnectError::ServiceConnectivity {
                    err: format!("Failed to create BreezServer: {e}"),
                })?,
        );

        // Ensure breez server connection is established in the background
        let cloned_breez_server = breez_server.clone();
        tokio::spawn(async move {
            if let Err(e) = cloned_breez_server.ping().await {
                error!("Failed to ping breez server: {e}");
            }
        });

        // Reconnect breez server on hibernation.
        let cloned_breez_server = breez_server.clone();
        let mut cloned_hibernation_receiver = hibernation_receiver.clone();
        tokio::spawn(async move {
            loop {
                if cloned_hibernation_receiver.changed().await.is_err() {
                    return;
                }

                debug!("Reconnect hibernation: reconnecting breez server");
                let _ = cloned_breez_server.reconnect().await;
            }
        });

        let current_lsp_id = persister.get_lsp_id()?;
        if current_lsp_id.is_none() && self.config.default_lsp_id.is_some() {
            persister.set_lsp(self.config.default_lsp_id.clone().unwrap(), None)?;
        }

        let payment_receiver = Arc::new(PaymentReceiver {
            config: self.config.clone(),
            node_api: unwrapped_node_api.clone(),
            lsp: breez_server.clone(),
            persister: persister.clone(),
        });

        // mempool space is used to monitor the chain
        let mempoolspace_urls = match self.config.mempoolspace_url.clone() {
            None => {
                let cached = persister.get_mempoolspace_base_urls()?;
                match cached.len() {
                    // If we have no cached values, or we cached an empty list, fetch new ones
                    0 => {
                        let fresh_urls = breez_server
                            .fetch_mempoolspace_urls()
                            .await
                            .unwrap_or(vec![DEFAULT_MEMPOOL_SPACE_URL.into()]);
                        persister.set_mempoolspace_base_urls(fresh_urls.clone())?;
                        fresh_urls
                    }
                    // If we already have cached values, return those
                    _ => cached,
                }
            }
            Some(mempoolspace_url_from_config) => vec![mempoolspace_url_from_config],
        };
        let chain_service = Arc::new(RedundantChainService::from_base_urls(mempoolspace_urls));

        let btc_receive_swapper = Arc::new(BTCReceiveSwap::new(
            self.config.network.into(),
            unwrapped_node_api.clone(),
            self.swapper_api
                .clone()
                .unwrap_or_else(|| breez_server.clone()),
            persister.clone(),
            chain_service.clone(),
            payment_receiver.clone(),
        ));

        let btc_send_swapper = Arc::new(BTCSendSwap::new(
            self.config.clone(),
            self.reverse_swapper_api
                .clone()
                .unwrap_or_else(|| breez_server.clone()),
            self.reverse_swap_service_api
                .clone()
                .unwrap_or_else(|| Arc::new(BoltzApi {})),
            persister.clone(),
            chain_service.clone(),
            unwrapped_node_api.clone(),
        ));

        // create a shutdown channel (sender and receiver)
        let (shutdown_sender, shutdown_receiver) = watch::channel::<()>(());

        let buy_bitcoin_api = self
            .buy_bitcoin_api
            .clone()
            .unwrap_or_else(|| Arc::new(BuyBitcoinService::new(breez_server.clone())));

        // Create the node services and it them statically
        let breez_services = Arc::new(BreezServices {
            config: self.config.clone(),
            started: Mutex::new(false),
            node_api: unwrapped_node_api.clone(),
            lsp_api: self.lsp_api.clone().unwrap_or_else(|| breez_server.clone()),
            fiat_api: self
                .fiat_api
                .clone()
                .unwrap_or_else(|| breez_server.clone()),
            support_api: self
                .support_api
                .clone()
                .unwrap_or_else(|| breez_server.clone()),
            buy_bitcoin_api,
            chain_service,
            persister: persister.clone(),
            btc_receive_swapper,
            btc_send_swapper,
            payment_receiver,
            event_listener,
            backup_watcher: Arc::new(backup_watcher),
            shutdown_sender,
            shutdown_receiver,
            hibernation_sender,
            hibernation_receiver,
        });

        Ok(breez_services)
    }
}

/// Attempts to convert the phrase to a mnemonic, then to a seed.
///
/// If the phrase is not a valid mnemonic, an error is returned.
pub fn mnemonic_to_seed(phrase: String) -> Result<Vec<u8>> {
    let mnemonic = Mnemonic::from_phrase(&phrase, Language::English)?;
    let seed = Seed::new(&mnemonic, "");
    Ok(seed.as_bytes().to_vec())
}

pub struct OpenChannelParams {
    pub payer_amount_msat: u64,
    pub opening_fee_params: models::OpeningFeeParams,
}

#[tonic::async_trait]
pub trait Receiver: Send + Sync {
    async fn receive_payment(
        &self,
        req: ReceivePaymentRequest,
    ) -> Result<ReceivePaymentResponse, ReceivePaymentError>;
    async fn wrap_node_invoice(
        &self,
        invoice: &str,
        params: Option<OpenChannelParams>,
        lsp_info: Option<LspInformation>,
    ) -> Result<String, ReceivePaymentError>;
}

pub(crate) struct PaymentReceiver {
    config: Config,
    node_api: Arc<dyn NodeAPI>,
    lsp: Arc<dyn LspAPI>,
    persister: Arc<SqliteStorage>,
}

#[tonic::async_trait]
impl Receiver for PaymentReceiver {
    async fn receive_payment(
        &self,
        req: ReceivePaymentRequest,
    ) -> Result<ReceivePaymentResponse, ReceivePaymentError> {
        let lsp_info = get_lsp(self.persister.clone(), self.lsp.clone()).await?;
        let node_state = self
            .persister
            .get_node_state()?
            .ok_or(ReceivePaymentError::Generic {
                err: "Node info not found".into(),
            })?;
        let expiry = req.expiry.unwrap_or(INVOICE_PAYMENT_FEE_EXPIRY_SECONDS);

        ensure_sdk!(
            req.amount_msat > 0,
            ReceivePaymentError::InvalidAmount {
                err: "Receive amount must be more than 0".into()
            }
        );

        let mut destination_invoice_amount_msat = req.amount_msat;
        let mut channel_opening_fee_params = None;
        let mut channel_fees_msat = None;

        // check if we need to open channel
        let open_channel_needed =
            node_state.max_receivable_single_payment_amount_msat < req.amount_msat;
        if open_channel_needed {
            info!("We need to open a channel");

            // we need to open channel so we are calculating the fees for the LSP (coming either from the user, or from the LSP)
            let ofp = match req.opening_fee_params {
                Some(fee_params) => fee_params,
                None => lsp_info.cheapest_open_channel_fee(expiry)?.clone(),
            };

            channel_opening_fee_params = Some(ofp.clone());
            channel_fees_msat = Some(ofp.get_channel_fees_msat_for(req.amount_msat));
            if let Some(channel_fees_msat) = channel_fees_msat {
                info!("zero-conf fee calculation option: lsp fee rate (proportional): {}:  (minimum {}), total fees for channel: {}",
                    ofp.proportional, ofp.min_msat, channel_fees_msat);

                if req.amount_msat < channel_fees_msat + 1000 {
                    return Err(
                        ReceivePaymentError::InvalidAmount{err: format!(
                           "Amount should be more than the minimum fees {channel_fees_msat} msat, but is {} msat",
                            req.amount_msat
                        )}
                    );
                }
                // remove the fees from the amount to get the small amount on the current node invoice.
                destination_invoice_amount_msat = req.amount_msat - channel_fees_msat;
            }
        }

        info!("Creating invoice on NodeAPI");
        let invoice = self
            .node_api
            .create_invoice(CreateInvoiceRequest {
                amount_msat: destination_invoice_amount_msat,
                description: req.description,
                payer_amount_msat: match open_channel_needed {
                    true => Some(req.amount_msat),
                    false => None,
                },
                preimage: req.preimage,
                use_description_hash: req.use_description_hash,
                expiry: Some(expiry),
                cltv: Some(req.cltv.unwrap_or(144)),
            })
            .await?;
        info!("Invoice created {}", invoice);

        let open_channel_params = match open_channel_needed {
            true => Some(OpenChannelParams {
                payer_amount_msat: req.amount_msat,
                opening_fee_params: channel_opening_fee_params.clone().ok_or(
                    ReceivePaymentError::Generic {
                        err: "We need to open a channel, but no channel opening fee params found"
                            .into(),
                    },
                )?,
            }),
            false => None,
        };

        let invoice = self
            .wrap_node_invoice(&invoice, open_channel_params, Some(lsp_info))
            .await?;
        let parsed_invoice = parse_invoice(&invoice)?;

        // return the signed, converted invoice with hints
        Ok(ReceivePaymentResponse {
            ln_invoice: parsed_invoice,
            opening_fee_params: channel_opening_fee_params,
            opening_fee_msat: channel_fees_msat,
        })
    }

    async fn wrap_node_invoice(
        &self,
        invoice: &str,
        params: Option<OpenChannelParams>,
        lsp_info: Option<LspInformation>,
    ) -> Result<String, ReceivePaymentError> {
        let lsp_info = match lsp_info {
            Some(lsp_info) => lsp_info,
            None => get_lsp(self.persister.clone(), self.lsp.clone()).await?,
        };

        match params {
            Some(params) => {
                self.wrap_open_channel_invoice(invoice, params, &lsp_info)
                    .await
            }
            None => self.ensure_hint(invoice, &lsp_info).await,
        }
    }
}

impl PaymentReceiver {
    async fn ensure_hint(
        &self,
        invoice: &str,
        lsp_info: &LspInformation,
    ) -> Result<String, ReceivePaymentError> {
        info!("Getting routing hints from node");
        let (mut hints, has_public_channel) = self.node_api.get_routing_hints(lsp_info).await?;
        if !has_public_channel && hints.is_empty() {
            return Err(ReceivePaymentError::InvoiceNoRoutingHints {
                err: "Must have at least one active channel".into(),
            });
        }

        let parsed_invoice = parse_invoice(invoice)?;

        // check if the lsp hint already exists
        info!("Existing routing hints {:?}", parsed_invoice.routing_hints);

        // limit the hints to max 3 and extract the lsp one.
        if let Some(lsp_hint) = Self::limit_and_extract_lsp_hint(&mut hints, lsp_info) {
            if parsed_invoice.contains_hint_for_node(lsp_info.pubkey.as_str()) {
                return Ok(String::from(invoice));
            }

            info!("Adding lsp hint: {:?}", lsp_hint);
            let modified =
                add_routing_hints(invoice, true, &vec![lsp_hint], parsed_invoice.amount_msat)?;

            let invoice = self.node_api.sign_invoice(modified).await?;
            info!("Signed invoice with hint = {}", invoice);
            return Ok(invoice);
        }

        if parsed_invoice.routing_hints.is_empty() {
            info!("Adding custom hints: {:?}", hints);
            let modified = add_routing_hints(invoice, false, &hints, parsed_invoice.amount_msat)?;
            let invoice = self.node_api.sign_invoice(modified).await?;
            info!("Signed invoice with hints = {}", invoice);
            return Ok(invoice);
        }

        Ok(String::from(invoice))
    }

    async fn wrap_open_channel_invoice(
        &self,
        invoice: &str,
        params: OpenChannelParams,
        lsp_info: &LspInformation,
    ) -> Result<String, ReceivePaymentError> {
        let parsed_invoice = parse_invoice(invoice)?;
        let open_channel_hint = RouteHint {
            hops: vec![RouteHintHop {
                src_node_id: lsp_info.pubkey.clone(),
                short_channel_id: "1x0x0".to_string(),
                fees_base_msat: lsp_info.base_fee_msat as u32,
                fees_proportional_millionths: (lsp_info.fee_rate * 1000000.0) as u32,
                cltv_expiry_delta: lsp_info.time_lock_delta as u64,
                htlc_minimum_msat: Some(lsp_info.min_htlc_msat as u64),
                htlc_maximum_msat: None,
            }],
        };
        info!("Adding open channel hint: {:?}", open_channel_hint);
        let invoice_with_hint = add_routing_hints(
            invoice,
            false,
            &vec![open_channel_hint],
            Some(params.payer_amount_msat),
        )?;
        let signed_invoice = self.node_api.sign_invoice(invoice_with_hint).await?;

        info!("Registering payment with LSP");
        let api_key = self.config.api_key.clone().unwrap_or_default();
        let api_key_hash = sha256::Hash::hash(api_key.as_bytes()).to_hex();

        self.lsp
            .register_payment(
                lsp_info.id.clone(),
                lsp_info.lsp_pubkey.clone(),
                grpc::PaymentInformation {
                    payment_hash: hex::decode(parsed_invoice.payment_hash.clone())
                        .map_err(|e| anyhow!("Failed to decode hex payment hash: {e}"))?,
                    payment_secret: parsed_invoice.payment_secret.clone(),
                    destination: hex::decode(parsed_invoice.payee_pubkey.clone())
                        .map_err(|e| anyhow!("Failed to decode hex payee pubkey: {e}"))?,
                    incoming_amount_msat: params.payer_amount_msat as i64,
                    outgoing_amount_msat: parsed_invoice
                        .amount_msat
                        .ok_or(anyhow!("Open channel invoice must have an amount"))?
                        as i64,
                    tag: json!({ "apiKeyHash": api_key_hash }).to_string(),
                    opening_fee_params: Some(params.opening_fee_params.into()),
                },
            )
            .await?;
        // Make sure we save the large amount so we can deduce the fees later.
        self.persister.insert_open_channel_payment_info(
            &parsed_invoice.payment_hash,
            params.payer_amount_msat,
            invoice,
        )?;

        Ok(signed_invoice)
    }

    fn limit_and_extract_lsp_hint(
        routing_hints: &mut Vec<RouteHint>,
        lsp_info: &LspInformation,
    ) -> Option<RouteHint> {
        let mut lsp_hint: Option<RouteHint> = None;
        if let Some(lsp_index) = routing_hints.iter().position(|r| {
            r.hops
                .iter()
                .any(|h| h.src_node_id == lsp_info.pubkey.clone())
        }) {
            lsp_hint = Some(routing_hints.remove(lsp_index));
        }
        if routing_hints.len() > 3 {
            routing_hints.drain(3..);
        }
        lsp_hint
    }
}

/// Convenience method to look up LSP info based on current LSP ID
async fn get_lsp(
    persister: Arc<SqliteStorage>,
    lsp_api: Arc<dyn LspAPI>,
) -> SdkResult<LspInformation> {
    let lsp_id = persister
        .get_lsp_id()?
        .ok_or(SdkError::generic("No LSP ID found"))?;

    get_lsp_by_id(persister, lsp_api, lsp_id.as_str())
        .await?
        .ok_or_else(|| SdkError::Generic {
            err: format!("No LSP found for id {lsp_id}"),
        })
}

async fn get_lsp_by_id(
    persister: Arc<SqliteStorage>,
    lsp_api: Arc<dyn LspAPI>,
    lsp_id: &str,
) -> SdkResult<Option<LspInformation>> {
    let node_pubkey = persister
        .get_node_state()?
        .ok_or(SdkError::generic("Node info not found"))?
        .id;

    Ok(lsp_api
        .list_lsps(node_pubkey)
        .await?
        .iter()
        .find(|&lsp| lsp.id.as_str() == lsp_id)
        .cloned())
}

/// Convenience method to get all LSPs (active and historical) relevant for registering or
/// unregistering webhook notifications
async fn get_notification_lsps(
    persister: Arc<SqliteStorage>,
    lsp_api: Arc<dyn LspAPI>,
    node_api: Arc<dyn NodeAPI>,
) -> SdkResult<Vec<LspInformation>> {
    let node_pubkey = persister
        .get_node_state()?
        .ok_or(SdkError::generic("Node info not found"))?
        .id;
    let open_peers = node_api.get_open_peers().await?;

    let mut notification_lsps = vec![];
    for lsp in lsp_api.list_used_lsps(node_pubkey).await? {
        match !lsp.opening_fee_params_list.values.is_empty() {
            true => {
                // Non-empty fee params list = this is the active LSP
                // Always consider the active LSP for notifications
                notification_lsps.push(lsp);
            }
            false => {
                // Consider only historical LSPs with whom we have an active channel
                let lsp_pubkey = hex::decode(&lsp.pubkey)
                    .map_err(|e| anyhow!("Failed decode lsp pubkey: {e}"))?;
                let has_active_channel_to_lsp = open_peers.contains(&lsp_pubkey);
                if has_active_channel_to_lsp {
                    notification_lsps.push(lsp);
                }
            }
        }
    }
    Ok(notification_lsps)
}

#[cfg(test)]
pub(crate) mod tests {
    use std::collections::HashMap;
    use std::sync::Arc;

    use anyhow::{anyhow, Result};
    use regex::Regex;
    use reqwest::Url;
    use sdk_common::prelude::Rate;

    use crate::breez_services::{BreezServices, BreezServicesBuilder};
    use crate::models::{LnPaymentDetails, NodeState, Payment, PaymentDetails, PaymentTypeFilter};
    use crate::node_api::NodeAPI;
    use crate::test_utils::*;
    use crate::*;

    use super::{PaymentReceiver, Receiver};

    #[tokio::test]
    async fn test_node_state() -> Result<()> {
        // let storage_path = format!("{}/storage.sql", get_test_working_dir());
        // std::fs::remove_file(storage_path).ok();

        let dummy_node_state = get_dummy_node_state();

        let lnurl_metadata = "{'key': 'sample-metadata-val'}";
        let test_ln_address = "test@ln-address.com";
        let test_lnurl_withdraw_endpoint = "https://test.endpoint.lnurl-w";
        let sa = SuccessActionProcessed::Message {
            data: MessageSuccessActionData {
                message: "test message".into(),
            },
        };

        let payment_hash_lnurl_withdraw = "2222";
        let payment_hash_with_lnurl_success_action = "3333";
        let payment_hash_swap: Vec<u8> = vec![1, 2, 3, 4, 5, 6, 7, 8];
        let swap_info = SwapInfo {
            bitcoin_address: "123".to_string(),
            created_at: 12345678,
            lock_height: 654321,
            payment_hash: payment_hash_swap.clone(),
            preimage: vec![],
            private_key: vec![],
            public_key: vec![],
            swapper_public_key: vec![],
            script: vec![],
            bolt11: Some("312".into()),
            paid_msat: 1000,
            confirmed_sats: 1,
            unconfirmed_sats: 0,
            total_incoming_txs: 1,
            status: SwapStatus::Refundable,
            refund_tx_ids: vec![],
            unconfirmed_tx_ids: vec![],
            confirmed_tx_ids: vec![],
            min_allowed_deposit: 5_000,
            max_allowed_deposit: 1_000_000,
            max_swapper_payable: 2_000_000,
            last_redeem_error: None,
            channel_opening_fees: Some(OpeningFeeParams {
                min_msat: 5_000_000,
                proportional: 50,
                valid_until: "date".to_string(),
                max_idle_time: 12345,
                max_client_to_self_delay: 234,
                promise: "promise".to_string(),
            }),
            confirmed_at: Some(555),
        };
        let payment_hash_rev_swap: Vec<u8> = vec![8, 7, 6, 5, 4, 3, 2, 1];
        let preimage_rev_swap: Vec<u8> = vec![6, 6, 6, 6];
        let full_ref_swap_info = FullReverseSwapInfo {
            id: "rev_swap_id".to_string(),
            created_at_block_height: 0,
            preimage: preimage_rev_swap.clone(),
            private_key: vec![],
            claim_pubkey: "claim_pubkey".to_string(),
            timeout_block_height: 600_000,
            invoice: "645".to_string(),
            redeem_script: "redeem_script".to_string(),
            onchain_amount_sat: 250,
            sat_per_vbyte: Some(50),
            receive_amount_sat: None,
            cache: ReverseSwapInfoCached {
                status: ReverseSwapStatus::CompletedConfirmed,
                lockup_txid: Some("lockup_txid".to_string()),
                claim_txid: Some("claim_txid".to_string()),
            },
        };
        let rev_swap_info = ReverseSwapInfo {
            id: "rev_swap_id".to_string(),
            claim_pubkey: "claim_pubkey".to_string(),
            lockup_txid: Some("lockup_txid".to_string()),
            claim_txid: Some("claim_txid".to_string()),
            onchain_amount_sat: 250,
            status: ReverseSwapStatus::CompletedConfirmed,
        };
        let dummy_transactions = vec![
            Payment {
                id: "1111".to_string(),
                payment_type: PaymentType::Received,
                payment_time: 100000,
                amount_msat: 10,
                fee_msat: 0,
                status: PaymentStatus::Complete,
                error: None,
                description: Some("test receive".to_string()),
                details: PaymentDetails::Ln {
                    data: LnPaymentDetails {
                        payment_hash: "1111".to_string(),
                        label: "".to_string(),
                        destination_pubkey: "1111".to_string(),
                        payment_preimage: "2222".to_string(),
                        keysend: false,
                        bolt11: "1111".to_string(),
                        lnurl_success_action: None,
                        lnurl_pay_domain: None,
                        lnurl_pay_comment: None,
                        lnurl_metadata: None,
                        ln_address: None,
                        lnurl_withdraw_endpoint: None,
                        swap_info: None,
                        reverse_swap_info: None,
                        pending_expiration_block: None,
                        open_channel_bolt11: None,
                    },
                },
                metadata: None,
            },
            Payment {
                id: payment_hash_lnurl_withdraw.to_string(),
                payment_type: PaymentType::Received,
                payment_time: 150000,
                amount_msat: 10,
                fee_msat: 0,
                status: PaymentStatus::Complete,
                error: None,
                description: Some("test lnurl-withdraw receive".to_string()),
                details: PaymentDetails::Ln {
                    data: LnPaymentDetails {
                        payment_hash: payment_hash_lnurl_withdraw.to_string(),
                        label: "".to_string(),
                        destination_pubkey: "1111".to_string(),
                        payment_preimage: "3333".to_string(),
                        keysend: false,
                        bolt11: "1111".to_string(),
                        lnurl_success_action: None,
                        lnurl_pay_domain: None,
                        lnurl_pay_comment: None,
                        lnurl_metadata: None,
                        ln_address: None,
                        lnurl_withdraw_endpoint: Some(test_lnurl_withdraw_endpoint.to_string()),
                        swap_info: None,
                        reverse_swap_info: None,
                        pending_expiration_block: None,
                        open_channel_bolt11: None,
                    },
                },
                metadata: None,
            },
            Payment {
                id: payment_hash_with_lnurl_success_action.to_string(),
                payment_type: PaymentType::Sent,
                payment_time: 200000,
                amount_msat: 8,
                fee_msat: 2,
                status: PaymentStatus::Complete,
                error: None,
                description: Some("test payment".to_string()),
                details: PaymentDetails::Ln {
                    data: LnPaymentDetails {
                        payment_hash: payment_hash_with_lnurl_success_action.to_string(),
                        label: "".to_string(),
                        destination_pubkey: "123".to_string(),
                        payment_preimage: "4444".to_string(),
                        keysend: false,
                        bolt11: "123".to_string(),
                        lnurl_success_action: Some(sa.clone()),
                        lnurl_pay_domain: None,
                        lnurl_pay_comment: None,
                        lnurl_metadata: Some(lnurl_metadata.to_string()),
                        ln_address: Some(test_ln_address.to_string()),
                        lnurl_withdraw_endpoint: None,
                        swap_info: None,
                        reverse_swap_info: None,
                        pending_expiration_block: None,
                        open_channel_bolt11: None,
                    },
                },
                metadata: None,
            },
            Payment {
                id: hex::encode(payment_hash_swap.clone()),
                payment_type: PaymentType::Received,
                payment_time: 250000,
                amount_msat: 1_000,
                fee_msat: 0,
                status: PaymentStatus::Complete,
                error: None,
                description: Some("test receive".to_string()),
                details: PaymentDetails::Ln {
                    data: LnPaymentDetails {
                        payment_hash: hex::encode(payment_hash_swap),
                        label: "".to_string(),
                        destination_pubkey: "321".to_string(),
                        payment_preimage: "5555".to_string(),
                        keysend: false,
                        bolt11: "312".to_string(),
                        lnurl_success_action: None,
                        lnurl_pay_domain: None,
                        lnurl_pay_comment: None,
                        lnurl_metadata: None,
                        ln_address: None,
                        lnurl_withdraw_endpoint: None,
                        swap_info: Some(swap_info.clone()),
                        reverse_swap_info: None,
                        pending_expiration_block: None,
                        open_channel_bolt11: None,
                    },
                },
                metadata: None,
            },
            Payment {
                id: hex::encode(payment_hash_rev_swap.clone()),
                payment_type: PaymentType::Sent,
                payment_time: 300000,
                amount_msat: 50_000_000,
                fee_msat: 2_000,
                status: PaymentStatus::Complete,
                error: None,
                description: Some("test send onchain".to_string()),
                details: PaymentDetails::Ln {
                    data: LnPaymentDetails {
                        payment_hash: hex::encode(payment_hash_rev_swap),
                        label: "".to_string(),
                        destination_pubkey: "321".to_string(),
                        payment_preimage: hex::encode(preimage_rev_swap),
                        keysend: false,
                        bolt11: "312".to_string(),
                        lnurl_success_action: None,
                        lnurl_metadata: None,
                        lnurl_pay_domain: None,
                        lnurl_pay_comment: None,
                        ln_address: None,
                        lnurl_withdraw_endpoint: None,
                        swap_info: None,
                        reverse_swap_info: Some(rev_swap_info.clone()),
                        pending_expiration_block: None,
                        open_channel_bolt11: None,
                    },
                },
                metadata: None,
            },
        ];
        let node_api = Arc::new(MockNodeAPI::new(dummy_node_state.clone()));

        let test_config = create_test_config();
        let persister = Arc::new(create_test_persister(test_config.clone()));
        persister.init()?;
        persister.insert_or_update_payments(&dummy_transactions)?;
        persister.insert_payment_external_info(
            payment_hash_with_lnurl_success_action,
            PaymentExternalInfo {
                lnurl_pay_success_action: Some(sa.clone()),
                lnurl_pay_domain: None,
                lnurl_pay_comment: None,
                lnurl_metadata: Some(lnurl_metadata.to_string()),
                ln_address: Some(test_ln_address.to_string()),
                lnurl_withdraw_endpoint: None,
                attempted_amount_msat: None,
                attempted_error: None,
            },
        )?;
        persister.insert_payment_external_info(
            payment_hash_lnurl_withdraw,
            PaymentExternalInfo {
                lnurl_pay_success_action: None,
                lnurl_pay_domain: None,
                lnurl_pay_comment: None,
                lnurl_metadata: None,
                ln_address: None,
                lnurl_withdraw_endpoint: Some(test_lnurl_withdraw_endpoint.to_string()),
                attempted_amount_msat: None,
                attempted_error: None,
            },
        )?;
        persister.insert_swap(swap_info.clone())?;
        persister.update_swap_bolt11(
            swap_info.bitcoin_address.clone(),
            swap_info.bolt11.clone().unwrap(),
        )?;
        persister.insert_reverse_swap(&full_ref_swap_info)?;
        persister
            .update_reverse_swap_status("rev_swap_id", &ReverseSwapStatus::CompletedConfirmed)?;
        persister
            .update_reverse_swap_lockup_txid("rev_swap_id", Some("lockup_txid".to_string()))?;
        persister.update_reverse_swap_claim_txid("rev_swap_id", Some("claim_txid".to_string()))?;

        let mut builder = BreezServicesBuilder::new(test_config.clone());
        let breez_services = builder
            .lsp_api(Arc::new(MockBreezServer {}))
            .fiat_api(Arc::new(MockBreezServer {}))
            .node_api(node_api)
            .persister(persister)
            .backup_transport(Arc::new(MockBackupTransport::new()))
            .build(None, None)
            .await?;

        breez_services.sync().await?;
        let fetched_state = breez_services.node_info()?;
        assert_eq!(fetched_state, dummy_node_state);

        let all = breez_services
            .list_payments(ListPaymentsRequest::default())
            .await?;
        let mut cloned = all.clone();

        // test the right order
        cloned.reverse();
        assert_eq!(dummy_transactions, cloned);

        let received = breez_services
            .list_payments(ListPaymentsRequest {
                filters: Some(vec![PaymentTypeFilter::Received]),
                ..Default::default()
            })
            .await?;
        assert_eq!(
            received,
            vec![cloned[3].clone(), cloned[1].clone(), cloned[0].clone()]
        );

        let sent = breez_services
            .list_payments(ListPaymentsRequest {
                filters: Some(vec![
                    PaymentTypeFilter::Sent,
                    PaymentTypeFilter::ClosedChannel,
                ]),
                ..Default::default()
            })
            .await?;
        assert_eq!(sent, vec![cloned[4].clone(), cloned[2].clone()]);
        assert!(matches!(
                &sent[1].details,
                PaymentDetails::Ln {data: LnPaymentDetails {lnurl_success_action, ..}}
                if lnurl_success_action == &Some(sa)));
        assert!(matches!(
                &sent[1].details,
                PaymentDetails::Ln {data: LnPaymentDetails {lnurl_pay_domain, ln_address, ..}}
                if lnurl_pay_domain.is_none() && ln_address == &Some(test_ln_address.to_string())));
        assert!(matches!(
                &received[1].details,
                PaymentDetails::Ln {data: LnPaymentDetails {lnurl_withdraw_endpoint, ..}}
                if lnurl_withdraw_endpoint == &Some(test_lnurl_withdraw_endpoint.to_string())));
        assert!(matches!(
                &received[0].details,
                PaymentDetails::Ln {data: LnPaymentDetails {swap_info: swap, ..}}
                if swap == &Some(swap_info)));
        assert!(matches!(
                &sent[0].details,
                PaymentDetails::Ln {data: LnPaymentDetails {reverse_swap_info: rev_swap, ..}}
                if rev_swap == &Some(rev_swap_info)));

        Ok(())
    }

    #[tokio::test]
    async fn test_receive_with_open_channel() -> Result<()> {
        let config = create_test_config();
        let persister = Arc::new(create_test_persister(config.clone()));
        persister.init().unwrap();

        let dummy_node_state = get_dummy_node_state();

        let node_api = Arc::new(MockNodeAPI::new(dummy_node_state.clone()));

        let breez_server = Arc::new(MockBreezServer {});
        persister.set_lsp(breez_server.lsp_id(), None).unwrap();
        persister.set_node_state(&dummy_node_state).unwrap();

        let receiver: Arc<dyn Receiver> = Arc::new(PaymentReceiver {
            config,
            node_api,
            persister,
            lsp: breez_server.clone(),
        });
        let ln_invoice = receiver
            .receive_payment(ReceivePaymentRequest {
                amount_msat: 3_000_000,
                description: "should populate lsp hints".to_string(),
                use_description_hash: Some(false),
                ..Default::default()
            })
            .await?
            .ln_invoice;
        assert_eq!(ln_invoice.routing_hints[0].hops.len(), 1);
        let lsp_hop = &ln_invoice.routing_hints[0].hops[0];
        assert_eq!(lsp_hop.src_node_id, breez_server.clone().lsp_pub_key());
        assert_eq!(lsp_hop.short_channel_id, "1x0x0");
        Ok(())
    }

    #[tokio::test]
    async fn test_list_lsps() -> Result<()> {
        let storage_path = format!("{}/storage.sql", get_test_working_dir());
        std::fs::remove_file(storage_path).ok();

        let breez_services = breez_services()
            .await
            .map_err(|e| anyhow!("Failed to get the BreezServices: {e}"))?;
        breez_services.sync().await?;

        let node_pubkey = breez_services.node_info()?.id;
        let lsps = breez_services.lsp_api.list_lsps(node_pubkey).await?;
        assert_eq!(lsps.len(), 1);

        Ok(())
    }

    #[tokio::test]
    async fn test_fetch_rates() -> Result<(), Box<dyn std::error::Error>> {
        let breez_services = breez_services().await?;
        breez_services.sync().await?;

        let rates = breez_services.fiat_api.fetch_fiat_rates().await?;
        assert_eq!(rates.len(), 1);
        assert_eq!(
            rates[0],
            Rate {
                coin: "USD".to_string(),
                value: 20_000.00,
            }
        );

        Ok(())
    }

    #[tokio::test]
    async fn test_buy_bitcoin_with_moonpay() -> Result<(), Box<dyn std::error::Error>> {
        let breez_services = breez_services().await?;
        breez_services.sync().await?;
        let moonpay_url = breez_services
            .buy_bitcoin(BuyBitcoinRequest {
                provider: BuyBitcoinProvider::Moonpay,
                opening_fee_params: None,
                redirect_url: None,
            })
            .await?
            .url;
        let parsed = Url::parse(&moonpay_url)?;
        let query_pairs = parsed.query_pairs().into_owned().collect::<HashMap<_, _>>();

        assert_eq!(parsed.host_str(), Some("mock.moonpay"));
        assert_eq!(parsed.path(), "/");

        let wallet_address = parse(query_pairs.get("wa").unwrap()).await?;
        assert!(matches!(wallet_address, InputType::BitcoinAddress { .. }));

        let max_amount = query_pairs.get("ma").unwrap();
        assert!(Regex::new(r"^\d+\.\d{8}$").unwrap().is_match(max_amount));

        Ok(())
    }

    /// Build node service for tests
    pub(crate) async fn breez_services() -> Result<Arc<BreezServices>> {
        breez_services_with(None, vec![]).await
    }

    /// Build node service for tests with a list of known payments
    pub(crate) async fn breez_services_with(
        node_api: Option<Arc<dyn NodeAPI>>,
        known_payments: Vec<Payment>,
    ) -> Result<Arc<BreezServices>> {
        let node_api =
            node_api.unwrap_or_else(|| Arc::new(MockNodeAPI::new(get_dummy_node_state())));

        let test_config = create_test_config();
        let persister = Arc::new(create_test_persister(test_config.clone()));
        persister.init()?;
        persister.insert_or_update_payments(&known_payments)?;
        persister.set_lsp(MockBreezServer {}.lsp_id(), None)?;

        let mut builder = BreezServicesBuilder::new(test_config.clone());
        let breez_services = builder
            .lsp_api(Arc::new(MockBreezServer {}))
            .fiat_api(Arc::new(MockBreezServer {}))
            .reverse_swap_service_api(Arc::new(MockReverseSwapperAPI {}))
            .buy_bitcoin_api(Arc::new(MockBuyBitcoinService {}))
            .persister(persister)
            .node_api(node_api)
            .backup_transport(Arc::new(MockBackupTransport::new()))
            .build(None, None)
            .await?;

        Ok(breez_services)
    }

    /// Build dummy NodeState for tests
    pub(crate) fn get_dummy_node_state() -> NodeState {
        NodeState {
            id: "tx1".to_string(),
            block_height: 1,
            channels_balance_msat: 100,
            onchain_balance_msat: 1_000,
            pending_onchain_balance_msat: 100,
            utxos: vec![],
            max_payable_msat: 95,
            max_receivable_msat: 4_000_000_000,
            max_single_payment_amount_msat: 1_000,
            max_chan_reserve_msats: 0,
            connected_peers: vec!["1111".to_string()],
            max_receivable_single_payment_amount_msat: 2_000,
            total_inbound_liquidity_msats: 10_000,
        }
    }
}