package config

import (
	"os"
)

// Config holds runtime configuration for the OpenGoods API server.
// Values are read from environment variables with sensible defaults so the
// server can boot in a local Docker Compose setup without extra configuration.
type Config struct {
	Addr        string
	DatabaseURL string
	RedisURL    string
}

// Load reads configuration from the environment.
func Load() Config {
	return Config{
		Addr:        getenv("OPENGOODS_ADDR", ":8080"),
		DatabaseURL: getenv("OPENGOODS_DATABASE_URL", "postgres://opengoods:opengoods@localhost:5432/opengoods?sslmode=disable"),
		RedisURL:    getenv("OPENGOODS_REDIS_URL", "redis://localhost:6379/0"),
	}
}

func getenv(key, fallback string) string {
	if v, ok := os.LookupEnv(key); ok && v != "" {
		return v
	}
	return fallback
}