feat: Diagnose-Skript für Übertrag-Flüsse
Zeigt als Matrix, welches Konto an welches überträgt, dazu Überträge ohne Zielkonto und Währungswechsel ohne Zielbetrag – Letztere schreiben den Fremdbetrag unkonvertiert gut und verfälschen den Saldo. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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#!/usr/bin/env python3
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"""Zeigt, welches Konto an welches überträgt – und wo dabei etwas fehlt.
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Ein falscher Kontostand kommt selten von den Ausgaben, fast immer von den
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Überträgen: falsche Richtung, fehlendes Zielkonto oder ein Währungswechsel
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ohne Zielbetrag (dann wird der Fremdbetrag 1:1 gutgeschrieben).
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Aufruf: pruefe_transfers.py [pfad-zur-db]
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"""
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import sqlite3
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import sys
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DB = sys.argv[1] if len(sys.argv) > 1 else "/var/lib/certain-finance/app.db"
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con = sqlite3.connect(f"file:{DB}?mode=ro", uri=True)
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con.row_factory = sqlite3.Row
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konten = {r["id"]: r for r in con.execute("SELECT id, name, currency FROM accounts")}
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def name(i):
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return konten[i]["name"] if i in konten else f"?{i}"
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def waehrung(i):
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return konten[i]["currency"] if i in konten else "?"
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def geld(c):
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return f"{(c or 0) / 100:,.2f}".replace(",", "'")
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print(f"Datenbank: {DB}\n")
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print("=== Wer überträgt an wen ===")
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print(f"{'von':<24}{'nach':<24}{'Anz':>5}{'Summe raus':>14}{'Summe rein':>14}")
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print("-" * 81)
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for r in con.execute(
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"SELECT account_id a, to_account_id b, COUNT(*) n, SUM(amount_cents) raus, "
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"SUM(COALESCE(to_amount_cents, amount_cents)) rein FROM transactions "
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"WHERE type='transfer' AND to_account_id IS NOT NULL GROUP BY a, b ORDER BY raus DESC"
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):
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print(f"{name(r['a'])[:23]:<24}{name(r['b'])[:23]:<24}{r['n']:>5}"
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f"{geld(r['raus']) + ' ' + waehrung(r['a']):>14}"
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f"{geld(r['rein']) + ' ' + waehrung(r['b']):>14}")
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offen = con.execute(
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"SELECT COUNT(*) n, SUM(amount_cents) s FROM transactions "
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"WHERE type='transfer' AND to_account_id IS NULL").fetchone()
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print(f"\nÜberträge OHNE Zielkonto: {offen['n']}, Summe {geld(offen['s'])}"
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" <-- gehen vom Quellkonto ab und kommen nirgends an")
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print("\n=== Währungswechsel ohne Zielbetrag ===")
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schief = con.execute(
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"SELECT t.id, t.date, t.amount_cents, COALESCE(t.payee,'') p, a.name qn, a.currency qw, "
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"z.name zn, z.currency zw FROM transactions t "
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"JOIN accounts a ON a.id = t.account_id JOIN accounts z ON z.id = t.to_account_id "
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"WHERE t.type='transfer' AND a.currency <> z.currency AND t.to_amount_cents IS NULL "
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"ORDER BY t.amount_cents DESC").fetchall()
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if not schief:
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print(" keine – gut.")
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else:
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summe = sum(r["amount_cents"] for r in schief)
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print(f" {len(schief)} Stück, Summe {geld(summe)}"
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" <-- der Betrag wird ohne Umrechnung gutgeschrieben")
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for r in schief[:12]:
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print(f" {r['date']} {geld(r['amount_cents']):>10} {r['qw']} -> {r['zw']} "
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f"{r['qn'][:16]:<16} -> {r['zn'][:16]:<16} {r['p'][:26]}")
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print("\n=== Die 12 grössten Überträge ===")
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for r in con.execute(
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"SELECT t.date, t.amount_cents, t.to_amount_cents, COALESCE(t.payee,'') p, "
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"t.account_id a, t.to_account_id b FROM transactions t WHERE t.type='transfer' "
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"ORDER BY t.amount_cents DESC LIMIT 12"
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):
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ziel = name(r["b"]) if r["b"] else "– kein Ziel –"
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print(f" {r['date']} {geld(r['amount_cents']):>10} {waehrung(r['a'])} "
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f"{name(r['a'])[:18]:<18} -> {ziel[:18]:<18} {r['p'][:30]}")
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