package Database

import (
	"log"

	"git.tovijaeschke.xyz/tovi/Envelope/Backend/Models"

	"gorm.io/driver/postgres"
	"gorm.io/gorm"
)

const (
	dbURL     = "postgres://postgres:@localhost:5432/envelope"
	dbTestURL = "postgres://postgres:@localhost:5432/envelope_test"
)

// DB db
var DB *gorm.DB

func getModels() []interface{} {
	return []interface{}{
		&Models.Session{},
		&Models.User{},
		&Models.FriendRequest{},
		&Models.MessageData{},
		&Models.Message{},
		&Models.ConversationDetail{},
		&Models.ConversationDetailUser{},
		&Models.UserConversation{},
	}
}

// Init initializes the database connection
func Init() {
	var (
		model interface{}
		err   error
	)

	log.Println("Initializing database...")

	DB, err = gorm.Open(postgres.Open(dbURL), &gorm.Config{})

	if err != nil {
		log.Fatalln(err)
	}

	log.Println("Running AutoMigrate...")

	for _, model = range getModels() {
		err = DB.AutoMigrate(model)
		if err != nil {
			log.Fatalln(err)
		}
	}
}

// InitTest initializes the test datbase
func InitTest() {
	var (
		model interface{}
		err   error
	)

	DB, err = gorm.Open(postgres.Open(dbTestURL), &gorm.Config{})

	if err != nil {
		log.Fatalln(err)
	}

	for _, model = range getModels() {
		DB.Migrator().DropTable(model)
		DB.AutoMigrate(model)
	}
}