Coverage for jbank/management/commands/parse_xt.py: 47%

109 statements  

« prev     ^ index     » next       coverage.py v7.2.2, created at 2023-03-27 13:36 +0700

1import logging 

2import os 

3from pprint import pprint 

4 

5from django.core.exceptions import ValidationError 

6from django.core.management.base import CommandParser 

7from django.db import transaction 

8from jbank.camt import ( 

9 camt053_get_iban, 

10 camt053_create_statement, 

11 camt053_parse_statement_from_file, 

12 CAMT053_STATEMENT_SUFFIXES, 

13 camt053_get_unified_str, 

14) 

15from jbank.helpers import get_or_create_bank_account, save_or_store_media 

16from jbank.files import list_dir_files 

17from jbank.models import Statement, StatementFile, StatementRecord, StatementRecordDetail 

18from jbank.parsers import parse_filename_suffix 

19from jutil.command import SafeCommand 

20 

21logger = logging.getLogger(__name__) 

22 

23 

24class Command(SafeCommand): 

25 help = "Parses XML bank account statement (camt.053.001.02) files" 

26 

27 def add_arguments(self, parser: CommandParser): 

28 parser.add_argument("path", type=str) 

29 parser.add_argument("--verbose", action="store_true") 

30 parser.add_argument("--test", action="store_true") 

31 parser.add_argument("--delete-old", action="store_true") 

32 parser.add_argument("--auto-create-accounts", action="store_true") 

33 parser.add_argument("--suffix", type=str) 

34 parser.add_argument("--resolve-original-filenames", action="store_true") 

35 parser.add_argument("--tag", type=str, default="") 

36 parser.add_argument("--parse-creditor-account-data", action="store_true", help="For data migration") 

37 

38 def parse_creditor_account_data(self): # pylint: disable=too-many-locals,too-many-branches 

39 for sf in StatementFile.objects.all(): # pylint: disable=too-many-nested-blocks 

40 assert isinstance(sf, StatementFile) 

41 full_path = sf.full_path 

42 if os.path.isfile(full_path) and parse_filename_suffix(full_path).upper() in CAMT053_STATEMENT_SUFFIXES: 

43 logger.info("Parsing creditor account data of %s", full_path) 

44 statement_data = camt053_parse_statement_from_file(full_path) 

45 d_stmt = statement_data.get("BkToCstmrStmt", {}).get("Stmt", {}) 

46 d_ntry = d_stmt.get("Ntry", []) 

47 recs = list(StatementRecord.objects.all().filter(statement__file=sf).order_by("id")) 

48 if len(recs) != len(d_ntry): 

49 raise ValidationError(f"Statement record counts do not match in id={sf.id} ({sf})") 

50 for ix, ntry in enumerate(d_ntry): 

51 rec = recs[ix] 

52 assert isinstance(rec, StatementRecord) 

53 for dtl_batch in ntry.get("NtryDtls", []): 

54 rec_detail_list = list(StatementRecordDetail.objects.all().filter(record=rec)) 

55 if len(rec_detail_list) != len(dtl_batch.get("TxDtls", [])): 

56 raise ValidationError(f"Statement record detail counts do not match in id={sf.id} ({sf})") 

57 for dtl_ix, dtl in enumerate(dtl_batch.get("TxDtls", [])): 

58 d = rec_detail_list[dtl_ix] 

59 assert isinstance(d, StatementRecordDetail) 

60 d_parties = dtl.get("RltdPties", {}) 

61 d_dbt = d_parties.get("Dbtr", {}) 

62 d.debtor_name = d_dbt.get("Nm", "") 

63 d_udbt = d_parties.get("UltmtDbtr", {}) 

64 d.ultimate_debtor_name = d_udbt.get("Nm", "") 

65 d_cdtr = d_parties.get("Cdtr", {}) 

66 d.creditor_name = d_cdtr.get("Nm", "") 

67 d_cdtr_acct = d_parties.get("CdtrAcct", {}) 

68 d_cdtr_acct_id = d_cdtr_acct.get("Id", {}) 

69 d.creditor_account = d_cdtr_acct_id.get("IBAN", "") 

70 if d.creditor_account: 

71 d.creditor_account_scheme = "IBAN" 

72 else: 

73 d_cdtr_acct_id_othr = d_cdtr_acct_id.get("Othr") or {} 

74 d.creditor_account_scheme = d_cdtr_acct_id_othr.get("SchmeNm", {}).get("Cd", "") 

75 d.creditor_account = d_cdtr_acct_id_othr.get("Id") or "" 

76 logger.info("%s creditor_account %s (%s)", rec, d.creditor_account, d.creditor_account_scheme) 

77 d.save() 

78 

79 if not rec.recipient_account_number: 

80 rec.recipient_account_number = camt053_get_unified_str(rec.detail_set.all(), "creditor_account") 

81 if rec.recipient_account_number: 

82 rec.save(update_fields=["recipient_account_number"]) 

83 logger.info("%s recipient_account_number %s", rec, rec.recipient_account_number) 

84 

85 def do(self, *args, **options): # pylint: disable=too-many-branches 

86 if options["parse_creditor_account_data"]: 

87 self.parse_creditor_account_data() 

88 return 

89 

90 files = list_dir_files(options["path"], options["suffix"]) 

91 for filename in files: 

92 plain_filename = os.path.basename(filename) 

93 

94 if parse_filename_suffix(plain_filename).upper() not in CAMT053_STATEMENT_SUFFIXES: 

95 print("Ignoring non-CAMT53 file {}".format(filename)) 

96 continue 

97 

98 if options["resolve_original_filenames"]: 

99 found = StatementFile.objects.filter(statement__name=plain_filename).first() 

100 if found and not found.original_filename: 

101 assert isinstance(found, StatementFile) 

102 found.original_filename = filename 

103 found.save(update_fields=["original_filename"]) 

104 logger.info("Original XML statement filename of %s resolved to %s", found, filename) 

105 

106 if options["test"]: 

107 statement = camt053_parse_statement_from_file(filename) 

108 pprint(statement) 

109 continue 

110 

111 if options["delete_old"]: 

112 Statement.objects.filter(name=plain_filename).delete() 

113 

114 if not Statement.objects.filter(name=plain_filename).first(): 

115 print("Importing statement file {}".format(plain_filename)) 

116 

117 statement = camt053_parse_statement_from_file(filename) 

118 if options["verbose"]: 

119 pprint(statement) 

120 

121 with transaction.atomic(): 

122 file = StatementFile(original_filename=filename, tag=options["tag"]) 

123 file.save() 

124 save_or_store_media(file.file, filename) 

125 file.save() 

126 

127 for data in [statement]: 

128 if options["auto_create_accounts"]: 

129 account_number = camt053_get_iban(data) 

130 if account_number: 

131 get_or_create_bank_account(account_number) 

132 

133 camt053_create_statement(data, name=plain_filename, file=file) # pytype: disable=not-callable 

134 else: 

135 print("Skipping statement file {}".format(filename))