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bin/finance/app/services/breakdown.py
T
rdmsandClaude Haiku 4.5 80b8b369c7 refactor: Tilgungsplan-Helfer schedule_for, Kredit-Laufzeit 1–1200 Monate (A14-T5)
- Neuer schedule_for() in app/engine/loans.py: vereinheitlicht Tilgungsplan-Erstellung
- Laufzeit-Validierung in LoanIn und LoanPatch: 1–1200 Monate
- Aufrufstellen aktualisiert (routers/planning.py, services/breakdown.py,
  services/projection_service.py, services/planning_chart.py)
- Keine direkten loan_schedule(Decimal(...)) Aufrufe außerhalb engine/loans.py mehr
- Tests für schedule_for und Laufzeit-Grenzen (1, 1200, sowie 0/-5/1201 Ablehnung)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-09-30 13:10:55 +02:00

46 lines
1.9 KiB
Python

"""Aufteilung (Ausbaustufe 13): Brücke DB -> engine/breakdown.py.
scenario=None ist „System-Plan" (reine Planung, alle Kredite, keine
Modifikatoren) - dieselbe Datenbasis wie load_scenario_inputs(None).
"""
from dataclasses import dataclass
from datetime import date
from sqlalchemy import select
from sqlalchemy.orm import Session
from app.engine.breakdown import (BreakdownRow, Filters, PlainLoan, Summary,
breakdown_rows, summarize)
from app.engine.loans import schedule_for
from app.models.tables import Category, Scenario
from app.reserved import SYSTEM_PREFIX
from app.services.double_count import Konflikt, all_conflicts
from app.services.planning_chart import KREDITRATEN, UNKATEGORISIERT
from app.services.projection_service import load_scenario_inputs
PLAN_NAME = f"{SYSTEM_PREFIX}Plan"
@dataclass(frozen=True)
class Breakdown:
month: date
rows: list[BreakdownRow]
summary: Summary
conflicts: list[Konflikt]
def compute_breakdown(session: Session, month: date, scenario: Scenario | None,
filters: Filters) -> Breakdown:
inputs = load_scenario_inputs(session, scenario)
names = {c.id: c.name for c in session.execute(select(Category)).scalars()}
loans = [PlainLoan(l.id, l.name, schedule_for(l)) for l in inputs.loans]
rows = breakdown_rows(month, inputs.recurring, inputs.planned, loans,
inputs.modifiers, filters, category_names=names,
loan_category=KREDITRATEN, uncategorized=UNKATEGORISIERT)
# Doppelzählungs-Hinweis nur, wenn Fixposten UND Kredit hier als Zeile stehen.
posten = {r.recurring_id for r in rows if r.recurring_id is not None}
kredite = {r.loan_id for r in rows if r.loan_id is not None}
conflicts = [k for k in all_conflicts(session)
if k.posten_id in posten and k.kredit_id in kredite]
return Breakdown(month.replace(day=1), rows, summarize(rows), conflicts)