package config

import (
	"fmt"

	"github.com/kelseyhightower/envconfig"
)

// Config holds all application configuration loaded from environment variables.
type Config struct {
	AppEnv      string `envconfig:"APP_ENV" default:"development"`
	HTTPAddr    string `envconfig:"HTTP_ADDR" default:":8080"`
	DatabaseURL string `envconfig:"DATABASE_URL" required:"true"`
}

// Load parses environment variables into Config.
func Load() (*Config, error) {
	var cfg Config
	if err := envconfig.Process("", &cfg); err != nil {
		return nil, fmt.Errorf("failed to load config: %w", err)
	}
	return &cfg, nil
}