package main

import (
	"arbeitszeitmessung/helper"
	"arbeitszeitmessung/models"
	"database/sql"
	"fmt"
	"log/slog"

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

func OpenDatabase() (models.IDatabase, error) {
	dbHost := helper.GetEnv("POSTGRES_HOST", "localhost")
	dbName := helper.GetEnv("POSTGRES_DB", "arbeitszeitmessung")
	dbUser := helper.GetEnv("POSTGRES_API_USER", "api_nutzer")
	dbPassword := helper.GetEnv("POSTGRES_API_PASS", "password")
	dbTz := helper.GetEnv("TZ", "Europe/Berlin")

	connStr := fmt.Sprintf("postgres://%s:%s@%s:5432/%s?sslmode=disable&TimeZone=%s", dbUser, dbPassword, dbHost, dbName, dbTz)
	return sql.Open("postgres", connStr)
}

func Migrate() error {
	return nil
	dbHost := helper.GetEnv("POSTGRES_HOST", "localhost")
	dbName := helper.GetEnv("POSTGRES_DB", "arbeitszeitmessung")
	// dbUser := helper.GetEnv("POSTGRES_USER", "api_nutzer")
	dbPassword := helper.GetEnv("POSTGRES_PASSWORD", "password")
	dbTz := helper.GetEnv("TZ", "Europe/Berlin")

	migrations := helper.GetEnv("MIGRATIONS_PATH", "../migrations")

	connStr := fmt.Sprintf("postgres://%s:%s@%s:5432/%s?sslmode=disable&TimeZone=%s", "migrate", dbPassword, dbHost, dbName, dbTz)
	m, err := migrate.New(fmt.Sprintf("file://%s", migrations), connStr)
	if err != nil {
		return err
	}

	slog.Info("Connected to database. Running migrations now.")

	// Migrate all the way up ...
	if err := m.Up(); err != nil && err != migrate.ErrNoChange {
		return err
	}

	slog.Info("Finished migrations starting webserver.")
	return nil
}