package config

import (
	"fmt"
	"log/slog"

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

func NewDB(db Database) (*gorm.DB, error) {
	db_type := db.Type
	slog.Info("using database", "type", db_type)

	switch db_type {
	case "postgres":
		dsn := fmt.Sprintf(
			"host=%s user=%s password=%s dbname=%s port=%d sslmode=disable",
			db.Host,
			db.User,
			db.Password,
			db.Name,
			db.Port,
		)

		return gorm.Open(postgres.Open(dsn), &gorm.Config{
			Logger: logger.Default.LogMode(logger.Info),
		})
	case "sqlite":
		return gorm.Open(sqlite.Open(db.Path), &gorm.Config{
			Logger: logger.Default.LogMode(logger.Info),
		})
	default:
		return nil, fmt.Errorf("unknown db.type=%s", db_type)
	}
	// Configure GORM with custom settings
	// The logger helps with debugging SQL queries during development
	// if err != nil {
	// 	log.Fatal("Failed to connect to database:", err)
	// }

	// // Get the underlying SQL database connection for pool configuration
	// sqlDB, err := db.DB()
	// if err != nil {
	// 	log.Fatal("Failed to get database instance:", err)
	// }

	// // Configure connection pool settings
	// // MaxIdleConns: number of connections kept open when idle
	// sqlDB.SetMaxIdleConns(10)
	// // MaxOpenConns: maximum total connections to the database
	// sqlDB.SetMaxOpenConns(100)
	// // ConnMaxLifetime: how long a connection can be reused
	// sqlDB.SetConnMaxLifetime(time.Hour)

	// slog.Info("Database connected successfully")

}