from typing import Any, List, Optional

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

from app import crud, schemas
from app.db.session import get_db

router = APIRouter()


@router.get("/", response_model=List[schemas.Todo])
def read_todos(
    db: Session = Depends(get_db),
    skip: int = 0,
    limit: int = 100,
    is_completed: Optional[bool] = None,
) -> Any:
    """Retrieve todos."""
    if is_completed is not None:
        todos = crud.todo.get_multi_by_completed(
            db, is_completed=is_completed, skip=skip, limit=limit
        )
    else:
        todos = crud.todo.get_multi(db, skip=skip, limit=limit)
    return todos


@router.post("/", response_model=schemas.Todo)
def create_todo(
    *,
    db: Session = Depends(get_db),
    todo_in: schemas.TodoCreate,
) -> Any:
    """Create new todo."""
    todo = crud.todo.create(db=db, obj_in=todo_in)
    return todo


@router.get("/{id}", response_model=schemas.Todo)
def read_todo(*, db: Session = Depends(get_db), id: int) -> Any:
    """Get todo by ID."""
    todo = crud.todo.get(db=db, id=id)
    if not todo:
        raise HTTPException(status_code=404, detail="Todo not found")
    return todo


@router.put("/{id}", response_model=schemas.Todo)
def update_todo(
    *,
    db: Session = Depends(get_db),
    id: int,
    todo_in: schemas.TodoUpdate,
) -> Any:
    """Update a todo."""
    todo = crud.todo.get(db=db, id=id)
    if not todo:
        raise HTTPException(status_code=404, detail="Todo not found")
    todo = crud.todo.update(db=db, db_obj=todo, obj_in=todo_in)
    return todo


@router.delete("/{id}", response_model=schemas.Todo)
def delete_todo(*, db: Session = Depends(get_db), id: int) -> Any:
    """Delete a todo."""
    todo = crud.todo.get(db=db, id=id)
    if not todo:
        raise HTTPException(status_code=404, detail="Todo not found")
    todo = crud.todo.remove(db=db, id=id)
    return todo