package user

import (
	"errors"
	"log"

	"github.com/google/uuid"
)

func (env *Env) createSession(user *User) (string, error) {
	var newSession Session
	newSession.UserID = user.ID
	newSession.SessionToken = uuid.New().String()

	err := env.DB.Create(&newSession).Error
	if err != nil {
		log.Println(err)
		return "", errors.New("failed write to database")
	}

	return newSession.SessionToken, nil
}

func (env *Env) getUserFromSessionToken(sessionToken string) (*User, error) {
	var currUser User
	err := env.DB.Table("sessions").Select("users.*").Joins("left join users on users.id = sessions.user_id").Where("sessions.session_token = ?", sessionToken).First(&currUser).Error
	if err != nil {
		log.Println(err)
		return nil, errors.New("failed get user")
	}

	err = env.DB.Preload("Profile").Where(&currUser).First(&currUser).Error
	if err != nil {
		log.Println(err)
		return nil, errors.New("failed get user")
	}

	return &currUser, nil
}

func (env *Env) logout(sessionToken string) error {
	var currSession Session
	err := env.DB.Where(&Session{SessionToken: sessionToken}).First(&currSession).Error
	if err != nil {
		log.Println(err)
		return errors.New("failed get session")
	}

	err = env.DB.Delete(&currSession).Error
	if err != nil {
		log.Println(err)
		return errors.New("failed to logout")
	}

	return nil
}