package config

import (
	"os"
	"strconv"
)

// Config holds the application configuration
type Config struct {
	Port     string
	DBPath   string
	Registry string
	MaxSize  int64
}

// LoadConfig loads configuration from environment variables with defaults
func LoadConfig() *Config {
	port := os.Getenv("PORT")
	if port == "" {
		port = "3002"
	}

	dbPath := os.Getenv("DB_PATH")
	if dbPath == "" {
		dbPath = "./registry.db"
	}

	registry := os.Getenv("REGISTRY_PATH")
	if registry == "" {
		registry = "registry"
	}

	maxSizeStr := os.Getenv("MAX_UPLOAD_SIZE")
	maxSize := int64(32 << 20) // 32MB default
	if maxSizeStr != "" {
		if parsed, err := strconv.ParseInt(maxSizeStr, 10, 64); err == nil {
			maxSize = parsed
		}
	}

	return &Config{
		Port:     port,
		DBPath:   dbPath,
		Registry: registry,
		MaxSize:  maxSize,
	}
}