from typing import Any, List

from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session

from app.core.database import get_db
from app.core.deps import get_current_active_user
from app.crud.category import (
    create_category,
    delete_category,
    get_categories,
    get_category_by_user,
    update_category,
)
from app.models.user import User
from app.schemas.category import Category, CategoryCreate, CategoryUpdate

router = APIRouter()


@router.get("", response_model=List[Category])
def read_categories(
    db: Session = Depends(get_db),
    skip: int = 0,
    limit: int = 100,
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Retrieve categories for the current user.
    """
    categories = get_categories(
        db=db, user_id=current_user.id, skip=skip, limit=limit
    )
    return categories


@router.post("", response_model=Category)
def create_category_endpoint(
    *,
    db: Session = Depends(get_db),
    category_in: CategoryCreate,
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Create new category.
    """
    category = create_category(
        db=db, category_in=category_in, user_id=current_user.id
    )
    return category


@router.get("/{category_id}", response_model=Category)
def read_category(
    *,
    db: Session = Depends(get_db),
    category_id: int,
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Get specific category by ID.
    """
    category = get_category_by_user(
        db=db, category_id=category_id, user_id=current_user.id
    )
    if not category:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Category not found",
        )
    return category


@router.put("/{category_id}", response_model=Category)
def update_category_endpoint(
    *,
    db: Session = Depends(get_db),
    category_id: int,
    category_in: CategoryUpdate,
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Update a category.
    """
    category = get_category_by_user(
        db=db, category_id=category_id, user_id=current_user.id
    )
    if not category:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Category not found",
        )
    category = update_category(
        db=db,
        category_id=category_id,
        category_in=category_in,
        user_id=current_user.id,
    )
    return category


@router.delete("/{category_id}", response_model=Category)
def delete_category_endpoint(
    *,
    db: Session = Depends(get_db),
    category_id: int,
    current_user: User = Depends(get_current_active_user),
) -> Any:
    """
    Delete a category.
    """
    category = get_category_by_user(
        db=db, category_id=category_id, user_id=current_user.id
    )
    if not category:
        raise HTTPException(
            status_code=status.HTTP_404_NOT_FOUND,
            detail="Category not found",
        )
    category = delete_category(
        db=db, category_id=category_id, user_id=current_user.id
    )
    return category