package main

import (
	"os"
	"time"
)

type Config struct {
	Port            string
	APIToken        string
	DataDir         string
	CleanupInterval time.Duration
	DBPath          string
}

func loadConfig() Config {
	return Config{
		Port:            getEnv("AUTH_GATE_PORT", "8080"),
		APIToken:        getEnv("AUTH_GATE_API_TOKEN", ""),
		DataDir:         getEnv("DATA_DIR", "/data"),
		CleanupInterval: parseDuration("CLEANUP_INTERVAL", 60*time.Second),
		DBPath:          getEnv("AUTH_GATE_DB_PATH", "/data/auth-gate.db"),
	}
}

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

func parseDuration(key string, defaultVal time.Duration) time.Duration {
	if v := os.Getenv(key); v != "" {
		d, err := time.ParseDuration(v)
		if err == nil {
			return d
		}
	}
	return defaultVal
}