from datetime import date
from typing import Optional
from fastapi import APIRouter, Depends, HTTPException
from sqlalchemy import select
from sqlalchemy.orm import Session

from database import get_db
from models import OtherPurchase, User
from schemas import OtherPurchaseCreate, OtherPurchaseUpdate, OtherPurchaseOut
from auth import get_current_user

router = APIRouter(prefix="/api/other", tags=["other"])


@router.get("", response_model=list[OtherPurchaseOut])
def list_other_purchases(
    start: Optional[date] = None,
    end:   Optional[date] = None,
    db:    Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    q = (
        select(OtherPurchase)
        .where(OtherPurchase.user_id == current_user.id)
        .order_by(OtherPurchase.date.desc())
    )
    if start:
        q = q.where(OtherPurchase.date >= start)
    if end:
        q = q.where(OtherPurchase.date <= end)
    return db.scalars(q).all()


@router.post("", response_model=OtherPurchaseOut, status_code=201)
def create_other_purchase(
    body: OtherPurchaseCreate,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    record = OtherPurchase(**body.model_dump(), user_id=current_user.id)
    db.add(record)
    db.commit()
    db.refresh(record)
    return record


@router.put("/{record_id}", response_model=OtherPurchaseOut)
def update_other_purchase(
    record_id: int,
    body: OtherPurchaseUpdate,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    record = db.scalars(
        select(OtherPurchase)
        .where(OtherPurchase.id == record_id, OtherPurchase.user_id == current_user.id)
    ).first()
    if not record:
        raise HTTPException(status_code=404, detail="Record not found")
    for field, value in body.model_dump(exclude_none=True).items():
        setattr(record, field, value)
    db.commit()
    db.refresh(record)
    return record


@router.delete("/{record_id}", status_code=204)
def delete_other_purchase(
    record_id: int,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    record = db.scalars(
        select(OtherPurchase)
        .where(OtherPurchase.id == record_id, OtherPurchase.user_id == current_user.id)
    ).first()
    if not record:
        raise HTTPException(status_code=404, detail="Record not found")
    db.delete(record)
    db.commit()