initial commit

src/main.py

@@ -0,0 +1,27 @@
+#!/bin/python
+
+import argparse
+from pathlib import Path
+
+from src.reader import reader_b4w, reader_raw
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Eine App um den Überblick über Finanzen zu behalten"
+    )
+    parser.add_argument("input", help="Pfad einer einzulesenden Umsatzdatei (CSV)")
+    args = parser.parse_args()
+
+    path = Path(args.input)
+
+    data_raw = reader_raw(path)
+
+    print(data_raw[:10])
+
+    data = reader_b4w(path)
+    print(data[:10])
+
+
+if __name__ == "__main__":
+    main()

src/models.py

@@ -0,0 +1,19 @@
+#!/bin/python
+
+from datetime import date
+from decimal import Decimal
+
+from pydantic import BaseModel, Field
+
+IBAN_PATTERN = r"^[A-Z]{2}\d{2}[A-Z0-9]{11,30}$"
+
+
+class B4wExport(BaseModel):
+    id: int = Field(alias="Id1", description="internal B4w ID")
+    account_iban: str = Field(alias="OwnrAcctIBAN", pattern=IBAN_PATTERN)
+    date_valid: date = Field(alias="ValDt")
+    amount: Decimal = Field(alias="Amt")
+
+    @classmethod
+    def from_dict(cls, d: dict) -> B4wExport:
+        return cls.model_validate(d)

src/reader.py

@@ -0,0 +1,19 @@
+#!/bin/python
+
+
+import csv
+from pathlib import Path
+
+from src.models import B4wExport
+
+
+def reader_raw(path: Path):
+    with path.open() as fid:
+        return list(csv.DictReader(fid))
+
+def reader_b4w(path: Path):
+    raw = reader_raw(path)
+    return list(map(B4wExport.from_dict, raw))
+
+
+