from sqlalchemy.orm import Session
from app.services.auth import AuthService
from app.schemas.user import UserCreate, UserUpdate
from app.utils.helpers import format_response

class AuthController:
    """
    Controller handling authentication requests and response formatting.
    Conforms to HTTP-specific patterns.
    """
    @staticmethod
    def register_user(db: Session, user_in: UserCreate):
        """Invoke registration logic and format successful user registration response."""
        new_user = AuthService.register(db, user_in)
        data = {
            "id": new_user.id,
            "username": new_user.username,
            "nama": new_user.nama,
            "email": new_user.email,
            "role": new_user.role,
            "kode_prodi": new_user.kode_prodi,
            "is_active": new_user.is_active
        }
        return format_response(True, "Pengguna berhasil ditambahkan", data)

    @staticmethod
    def login_user(db: Session, username: str, password: str):
        """Invoke login logic, retrieve JWT token, and format login response."""
        token_data = AuthService.login(db, username, password)
        return format_response(True, "Login berhasil", token_data.model_dump())

    @staticmethod
    def get_users(db: Session):
        users = AuthService.get_all_users(db)
        data = [
            {
                "id": u.id,
                "username": u.username,
                "nama": u.nama or u.username,
                "email": u.email,
                "role": u.role or "admin",
                "kode_prodi": u.kode_prodi,
                "is_active": u.is_active,
                "created_at": u.created_at.strftime("%Y-%m-%d %H:%M") if u.created_at else None
            }
            for u in users
        ]
        return format_response(True, "Data pengguna berhasil diambil", data)

    @staticmethod
    def update_user(db: Session, user_id: int, user_in: UserUpdate):
        user = AuthService.update_user(db, user_id, user_in)
        data = {
            "id": user.id,
            "username": user.username,
            "nama": user.nama,
            "email": user.email,
            "role": user.role,
            "kode_prodi": user.kode_prodi,
            "is_active": user.is_active
        }
        return format_response(True, "Data pengguna berhasil diperbarui", data)

    @staticmethod
    def delete_user(db: Session, user_id: int):
        AuthService.delete_user(db, user_id)
        return format_response(True, "Pengguna berhasil dihapus", None)