package main

import (
	"errors"
	"flag"
	"fmt"
	"recipes/internal/config"

	"github.com/golang-migrate/migrate/v4"
	_ "github.com/golang-migrate/migrate/v4/database/postgres"
	_ "github.com/golang-migrate/migrate/v4/source/file"
)

func main() {
	var migrationsPath string
	var down bool

	flag.StringVar(&migrationsPath, "migrations-path", "", "path to migrations")
	flag.BoolVar(&down, "down", false, "")
	// flag.StringVar(&configFile, "config", "", "config file location")

	flag.Parse()

	if migrationsPath == "" {
		panic("migrations-path is required")
	}

	// load config
	cfg := config.MustLoad()

	m, err := migrate.New("file://"+migrationsPath, fmt.Sprintf("postgres://%s:%s@%s/%s?sslmode=disable", cfg.Postgresql.User, cfg.Postgresql.Password, cfg.Postgresql.Address, cfg.Postgresql.DBName))
	if err != nil {
		panic(err)
	}

	if down {
		if err := m.Down(); err != nil {
			if errors.Is(err, migrate.ErrNoChange) {
				fmt.Println("no migrations downed")
				return
			}

			panic(err)
		}
		fmt.Println("migrations downed successfully")
		return
	}

	if err := m.Up(); err != nil {
		if errors.Is(err, migrate.ErrNoChange) {
			fmt.Println("no migrations apply")
			return
		}

		panic(err)
	}

	fmt.Println("migrations applied successfully")
}