package config

import (
	"os"

	"github.com/joho/godotenv"
)

// Config holds all application configuration.
type Config struct {
	Port        string
	DatabaseURL string
	JWTSecret   string
	Environment string
}

// Load reads configuration from environment variables.
// A .env file is loaded if present but not required.
func Load() *Config {
	// Best-effort .env load (not required in production)
	_ = godotenv.Load()

	return &Config{
		Port:        getEnv("PORT", "8080"),
		DatabaseURL: getEnv("DATABASE_URL", ""),
		JWTSecret:   getEnv("JWT_SECRET", "dev-secret-change-me"),
		Environment: getEnv("ENVIRONMENT", "development"),
	}
}

func getEnv(key, fallback string) string {
	if v := os.Getenv(key); v != "" {
		return v
	}
	return fallback
}