package services

import (
	"authentication/db"
	"log"
)

func GetUserID(email string) (string, error) {
	log.Print(email)
	query := `SELECT user_id FROM users WHERE email_address = ? AND is_deleted = 0 LIMIT 1;`
	var id string
	err := db.DB.QueryRow(query, email).Scan(&id)
	if err != nil {
		return "", err
	}
	return id, nil
}

func CheckEmailInDB(email string) (bool, error) {
	var exists bool
	query := `SELECT EXISTS (
		SELECT 1 FROM users WHERE email_address = ? AND is_deleted = 0);`
	err := db.DB.QueryRow(query, email).Scan(&exists)
	if err != nil {
		return false, err
	}
	return exists, nil
}

func GetUserIDFromEmail(email string) (string, error) {
	log.Print(email)
	query := `SELECT user_id
				FROM (
					SELECT user_id, 1 AS priority
					FROM users
					WHERE email_address = ?
					AND is_deleted = 0
				) t
				ORDER BY priority ASC
				LIMIT 1;
						`

	var id string
	err := db.DB.QueryRow(query, email).Scan(&id)
	if err != nil {
		log.Println("Hello")

		return "", err
	}

	return id, nil
}

func GetRoleIDFromEmail(email string) (string, error) {
	log.Print(email)
	query := `SELECT role_id
				FROM (
					SELECT r.id AS role_id, 1 AS priority
					FROM roles r
					JOIN users u ON u.role_id = r.id
					WHERE u.email_address = ?
					AND u.is_deleted = 0
				) t
				ORDER BY priority ASC
				LIMIT 1;
						`
	var roleID string
	err := db.DB.QueryRow(query, email).Scan(&roleID)
	if err != nil {
		return "", err
	}
	return roleID, nil
}