110 lines
3.9 KiB
Python
110 lines
3.9 KiB
Python
from fastapi import APIRouter, HTTPException, Query
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from typing import Optional, List, Dict, Any
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from decimal import Decimal
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from datetime import date
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from app.core.database import get_connection
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router = APIRouter(prefix="/ledger", tags=["元帳"])
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def to_decimal(x) -> Decimal:
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if isinstance(x, Decimal):
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return x
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return Decimal(str(x or 0))
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@router.get("/{account_id}", summary="科目別元帳（残高推移）")
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def get_ledger(
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account_id: int,
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date_from: Optional[str] = Query(None, description="YYYY-MM-DD"),
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date_to: Optional[str] = Query(None, description="YYYY-MM-DD"),
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):
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# 1) 科目存在チェック
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with get_connection() as conn, conn.cursor() as cur:
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cur.execute("""
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SELECT account_id, account_code, account_name, account_type
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FROM accounts
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WHERE account_id = %s
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""", (account_id,))
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account = cur.fetchone()
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if not account:
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raise HTTPException(status_code=404, detail="指定した科目が見つかりません。")
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# 2) 期間デフォルト（最小〜最大）
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if not date_from:
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cur.execute("""
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SELECT MIN(j.journal_date) AS min_d
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FROM journal_entries j
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JOIN journal_lines l ON l.journal_id = j.journal_id
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WHERE l.account_id = %s
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""", (account_id,))
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row = cur.fetchone()
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date_from = (row["min_d"] or date.today()).isoformat()
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if not date_to:
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cur.execute("""
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SELECT MAX(j.journal_date) AS max_d
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FROM journal_entries j
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JOIN journal_lines l ON l.journal_id = j.journal_id
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WHERE l.account_id = %s
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""", (account_id,))
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row = cur.fetchone()
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date_to = (row["max_d"] or date.today()).isoformat()
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# 3) 期首残高（date_from より前）
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cur.execute("""
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SELECT COALESCE(SUM(l.debit - l.credit), 0) AS opening
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FROM journal_lines l
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JOIN journal_entries j ON j.journal_id = l.journal_id
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WHERE l.account_id = %s
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AND j.journal_date < %s
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""", (account_id, date_from))
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opening = to_decimal(cur.fetchone()["opening"])
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# 4) 期間内明細
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cur.execute("""
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SELECT j.journal_date, j.journal_id, j.description,
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l.debit, l.credit
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FROM journal_lines l
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JOIN journal_entries j ON j.journal_id = l.journal_id
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WHERE l.account_id = %s
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AND j.journal_date BETWEEN %s AND %s
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ORDER BY j.journal_date, j.journal_id, l.line_id
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""", (account_id, date_from, date_to))
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rows = cur.fetchall()
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# 5) 残高推移の計算（借方−貸方）
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balance = opening
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out_rows: List[Dict[str, Any]] = []
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total_debit = Decimal("0")
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total_credit = Decimal("0")
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for r in rows:
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d = to_decimal(r["debit"])
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c = to_decimal(r["credit"])
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total_debit += d
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total_credit += c
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balance += (d - c)
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out_rows.append({
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"date": r["journal_date"].isoformat(),
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"journal_id": r["journal_id"],
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"description": r["description"],
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"debit": str(d),
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"credit": str(c),
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"balance": str(balance) # 借方残を正とする（借方−貸方）
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})
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result = {
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"account": {
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"id": account["account_id"],
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"code": account["account_code"],
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"name": account["account_name"],
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"type": account["account_type"],
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},
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"period": {"from": date_from, "to": date_to},
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"opening_balance": str(opening),
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"total_debit": str(total_debit),
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"total_credit": str(total_credit),
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"closing_balance": str(balance),
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"rows": out_rows
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}
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return result
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