package database

import (
	"CatsOfMastodonBotGo/internal/config"
	"CatsOfMastodonBotGo/internal/domain"
	"fmt"
	"os"

	"gorm.io/driver/mysql"
	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
)

var Gorm *gorm.DB

func Connect() (*gorm.DB, error) {
	var db *gorm.DB
	var err error = nil

	if config.Config.DBEngine == "sqlite" {
		_, err = os.ReadDir("data")
		if err != nil {
			err = os.Mkdir("data", 0755)
			if err != nil {
				return nil, err
			}
		}
		db, err = gorm.Open(sqlite.Open("data/caom.db"), &gorm.Config{})
		if err != nil {
			return nil, err
		}
	} else {
		dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local",
			config.Config.DBUser,
			config.Config.DBPassword,
			config.Config.DBHost,
			config.Config.DBPort,
			config.Config.DBName)
		db, err = gorm.Open(mysql.Open(dsn), &gorm.Config{})
		if err != nil {
			return nil, err
		}
	}

	// Migrate the schema
	if err := db.AutoMigrate(&domain.Post{}, &domain.MediaAttachment{}, &domain.Account{}); err != nil {
		return nil, err
	}
	return db, nil
}

// IDK if this is how it works or not, leave it as is for now
func Init() {
	var err error
	Gorm, err = Connect()
	if err != nil {
		panic(err)
	}
}