from typing import List

from fastapi import APIRouter, Depends
from fastapi import HTTPException
from fastapi.security import OAuth2PasswordRequestForm
from sqlalchemy.orm import Session

from app.core.entities.user import UserEntity
from app.core.usecases.auth_service import create_access_token, verify_token
from app.core.usecases.user_service import UsersService
from app.infrastructure.database.dependencies import get_db
from app.infrastructure.database.models.users import User
from app.infrastructure.database.repository.user_repository import UsersRepository

router = APIRouter()


@router.get("/users", response_model=List[UserEntity])
def read_users(db: Session = Depends(get_db),
               current_user: User = Depends(verify_token)):
    service = UsersService(db)
    return service.get_all_users()


@router.get("/users/{user_id}", response_model=UserEntity)
def read_user(user_id: int, db: Session = Depends(get_db),
              current_user: User = Depends(verify_token)):
    service = UsersService(db)
    user = service.get_user_by_id(user_id)
    if user is None:
        raise HTTPException(status_code=404, detail="User not found")
    return user


@router.post("/users", response_model=UserEntity)
def create_user(user: UserEntity, db: Session = Depends(get_db),
                current_user: User = Depends(verify_token)):
    service = UsersService(db)
    return service.create_user(user)


@router.put("/users/{user_id}", response_model=UserEntity)
def update_user(user_id: int, user: UserEntity, db: Session = Depends(get_db),
                current_user: User = Depends(verify_token)):
    service = UsersService(db)
    updated_user = service.update_user(user_id, user)
    if updated_user is None:
        raise HTTPException(status_code=404, detail="User not found")
    return updated_user


@router.delete("/users/{user_id}", response_model=bool)
def delete_user(user_id: int, db: Session = Depends(get_db),
                current_user: User = Depends(verify_token)):
    service = UsersService(db)
    success = service.delete_user(user_id)
    if not success:
        raise HTTPException(status_code=404, detail="User not found")
    return success


@router.post("/token")
def login(form_data: OAuth2PasswordRequestForm = Depends(), db: Session = Depends(get_db)):
    user_repo = UsersRepository(db)
    user = user_repo.get_by_login(form_data.username)

    if not user or user.password != form_data.password:
        raise HTTPException(status_code=400, detail="Incorrect username or password")

    access_token = create_access_token(data={"sub": user.id})

    return {
        "access_token": access_token,
        "token_type": "bearer",
        "user": {
            "id": user.id,
            "login": user.login,
            "role_id": user.role.id,
            "role_name": user.role.name,
        }
    }