package auth

import (
	"context"

	"emperror.dev/errors"
	"lmika.dev/lmika/weiro/models"
	"lmika.dev/lmika/weiro/providers/db"
)

type Service struct {
	db *db.Provider
}

func New(db *db.Provider) *Service {
	return &Service{
		db: db,
	}
}

func (s *Service) Login(ctx context.Context, username, password string) (models.User, error) {
	user, err := s.db.SelectUserByUsername(ctx, username)
	if err != nil {
		return models.User{}, err
	}

	if !user.CheckPassword(password) {
		return models.User{}, errors.New("invalid password")
	}

	return user, nil
}

func (s *Service) GetUser(ctx context.Context, userID int64) (models.User, error) {
	return s.db.SelectUserByID(ctx, userID)
}

func (s *Service) SetPassword(ctx context.Context, username, password string) (models.User, error) {
	user, err := s.db.SelectUserByUsername(ctx, username)
	if err != nil {
		return models.User{}, err
	}

	user.SetPassword(password)
	return user, s.db.SaveUser(ctx, &user)
}