package database

import (
	"fmt"
	"log"

	"github.com/celestia-trace/backend/config"
	"github.com/celestia-trace/backend/models"
	"gorm.io/driver/postgres"
	"gorm.io/gorm"
)

var DB *gorm.DB

// Init initializes the database connection and auto-migrates models
func Init(cfg *config.Config) {
	dsn := fmt.Sprintf("host=%s user=%s password=%s dbname=%s port=%s sslmode=disable TimeZone=UTC",
		cfg.DBHost, cfg.DBUser, cfg.DBPassword, cfg.DBName, cfg.DBPort)

	db, err := gorm.Open(postgres.Open(dsn), &gorm.Config{})
	if err != nil {
		log.Fatalf("Failed to connect to database: %v", err)
	}

	// Auto-migrate models
	err = db.AutoMigrate(
		&models.User{},
		&models.AuthSession{},
		&models.BoundDevice{},
		&models.CelestiaSession{},
		&models.TimelineEvent{},
		&models.MediaAsset{},
		&models.SyncSetting{},
		&models.ChunkedUpload{},
	)
	if err != nil {
		log.Fatalf("Failed to auto-migrate database: %v", err)
	}

	DB = db
}