package config

import (
	"log"
	"os"

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

var DB *gorm.DB

func InitDB() {
	var err error
	
	// Get database configuration from environment variables
	host := os.Getenv("DB_HOST")
	port := os.Getenv("DB_PORT")
	user := os.Getenv("DB_USER")
	password := os.Getenv("DB_PASSWORD")
	dbname := os.Getenv("DB_NAME")
	
	// Create DSN (Data Source Name)
	dsn := user + ":" + password + "@tcp(" + host + ":" + port + ")/" + dbname + "?charset=utf8mb4&parseTime=True&loc=Local"
	
	// Connect to database
	DB, err = gorm.Open(mysql.Open(dsn), &gorm.Config{})
	if err != nil {
		log.Fatal("Failed to connect to database:", err)
	}
	
	log.Println("Database connection established")
}