import uuid

from fastapi import APIRouter, Depends, status
from sqlalchemy.ext.asyncio import AsyncSession

from app.auth.dependencies import get_current_user
from app.database import get_session
from app.models.category import CategoryType
from app.models.user import User
from app.schemas.category import CategoryCreate, CategoryResponse, CategoryUpdate
from app.services import category_service

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


@router.get("", response_model=list[CategoryResponse])
async def list_categories(
    type: CategoryType | None = None,
    session: AsyncSession = Depends(get_session),
    current_user: User = Depends(get_current_user),
) -> list[CategoryResponse]:
    cats = await category_service.list_categories(session, current_user.id, type_filter=type)
    return [CategoryResponse.model_validate(c) for c in cats]


@router.post("", response_model=CategoryResponse, status_code=status.HTTP_201_CREATED)
async def create_category(
    data: CategoryCreate,
    session: AsyncSession = Depends(get_session),
    current_user: User = Depends(get_current_user),
) -> CategoryResponse:
    cat = await category_service.create_category(session, current_user.id, data)
    return CategoryResponse.model_validate(cat)


@router.put("/{category_id}", response_model=CategoryResponse)
async def update_category(
    category_id: uuid.UUID,
    data: CategoryUpdate,
    session: AsyncSession = Depends(get_session),
    current_user: User = Depends(get_current_user),
) -> CategoryResponse:
    cat = await category_service.update_category(session, current_user.id, category_id, data)
    return CategoryResponse.model_validate(cat)


@router.delete("/{category_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_category(
    category_id: uuid.UUID,
    session: AsyncSession = Depends(get_session),
    current_user: User = Depends(get_current_user),
) -> None:
    await category_service.delete_category(session, current_user.id, category_id)