Обновление приложения

backend/app/api/v1/exchange_rates.py

@@ -0,0 +1,61 @@
+from datetime import date
+from fastapi import APIRouter, Depends, HTTPException, Query, status
+from sqlalchemy.orm import Session
+from app.auth.dependencies import get_current_user, require_role
+from app.database import get_db
+from app.models.currency import ExchangeRate
+from app.schemas.currency import ExchangeRateCreate, ExchangeRateOut
+
+router = APIRouter(prefix="/exchange-rates", tags=["exchange-rates"])
+
+require_accountant = require_role("accountant")
+
+
+@router.get("", response_model=list[ExchangeRateOut])
+def list_rates(
+    currency_from_id: int | None = None,
+    currency_to_id: int | None = None,
+    rate_date: date | None = None,
+    limit: int = Query(50, le=500),
+    db: Session = Depends(get_db),
+    _=Depends(get_current_user),
+):
+    q = db.query(ExchangeRate)
+    if currency_from_id:
+        q = q.filter(ExchangeRate.currency_from_id == currency_from_id)
+    if currency_to_id:
+        q = q.filter(ExchangeRate.currency_to_id == currency_to_id)
+    if rate_date:
+        q = q.filter(ExchangeRate.rate_date == rate_date)
+    return q.order_by(ExchangeRate.rate_date.desc()).limit(limit).all()
+
+
+@router.post("", response_model=ExchangeRateOut, status_code=status.HTTP_201_CREATED)
+def create_rate(body: ExchangeRateCreate, db: Session = Depends(get_db), _=Depends(require_accountant)):
+    if body.currency_from_id == body.currency_to_id:
+        raise HTTPException(status_code=400, detail="Cannot set rate between the same currency")
+    existing = db.query(ExchangeRate).filter(
+        ExchangeRate.currency_from_id == body.currency_from_id,
+        ExchangeRate.currency_to_id == body.currency_to_id,
+        ExchangeRate.rate_date == body.rate_date,
+    ).first()
+    if existing:
+        for field, value in body.model_dump(exclude_none=True).items():
+            setattr(existing, field, value)
+        db.commit()
+        db.refresh(existing)
+        return existing
+    obj = ExchangeRate(**body.model_dump())
+    db.add(obj)
+    db.commit()
+    db.refresh(obj)
+    return obj
+
+
+@router.delete("/{rate_id}", status_code=status.HTTP_204_NO_CONTENT)
+def delete_rate(rate_id: int, db: Session = Depends(get_db), _=Depends(require_accountant)):
+    obj = db.get(ExchangeRate, rate_id)
+    if not obj:
+        raise HTTPException(status_code=404, detail="Exchange rate not found")
+    db.delete(obj)
+    db.commit()