package bulletins_database

import (
	"log"

	"autolibrary.top/webserver/backend/models/bulletins_model"

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

var DB *gorm.DB // global bulletins database instance

func InitDB(dsn string) error {
	var err error

	DB, err = gorm.Open(sqlite.Open(dsn), &gorm.Config{})
	if err != nil {
		log.Printf("[E] unable to connect to bulletins database: %v", err)
		return err
	}

	err = DB.AutoMigrate(
		&bulletins_model.Bulletin{},
	)
	if err != nil {
		log.Printf("[E] bulletins database migration failed: %v", err)
		return err
	}

	log.Printf("[I] bulletins database initialization completed")
	return nil
}

func CloseDB() error {
	sqlDB, err := DB.DB()
	if err != nil {
		log.Printf("[E] unable to get bulletins database connection: %v", err)
		return err
	}

	err = sqlDB.Close()
	if err != nil {
		log.Printf("[E] unable to close bulletins database connection: %v", err)
		return err
	}

	log.Printf("[I] bulletins database connection closed")
	return nil
}