package models

import (
	"log"
	"os"

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

var DB *gorm.DB

type MediaHistory struct {
	gorm.Model
	SourceURL string `gorm:"uniqueIndex"`
	FilePath  string
	Status    string
	Type      string // ENUM: "download", "upload"
}

func InitDB(dbPath string) {
	var err error
	
	// 도커 로그 디버깅을 위해 SQL 쿼리를 디테일하게 출력하는 로거 설정
	newLogger := logger.New(
		log.New(os.Stdout, "\r\n", log.LstdFlags),
		logger.Config{
			LogLevel: logger.Info,
			Colorful: true,
		},
	)

	log.Println("Connecting to SQLite at:", dbPath)
	DB, err = gorm.Open(sqlite.Open(dbPath), &gorm.Config{
		Logger: newLogger,
	})
	if err != nil {
		log.Fatal("Failed to connect to database:", err)
	}

	// SQLite 동시성 최적화를 위해 WAL(Write-Ahead Logging) 모드를 활성화
	DB.Exec("PRAGMA journal_mode=WAL;")

	err = DB.AutoMigrate(&MediaHistory{})
	if err != nil {
		log.Println("Database migration error:", err)
	}
	log.Println("Database initialized and migrated.")
}