package main

import (
	"flag"
	"os"
)

type Config struct {
	ContentDir    string
	KeysDir       string
	Port          string
	RepoURL       string
	RepoToken     string
	WebhookSecret string
	NtfyURL       string
	NtfyTopic     string
	EnableWebhook bool
}

func loadConfig() *Config {
	cfg := &Config{}

	flag.StringVar(&cfg.ContentDir, "content-dir", envOrDefault("CONTENT_DIR", "./content"), "directory to serve as content")
	flag.StringVar(&cfg.KeysDir, "keys-dir", envOrDefault("KEYS_DIR", "./keys"), "directory to serve as WKD keys")
	flag.StringVar(&cfg.Port, "port", envOrDefault("PORT", "80"), "port to listen on")
	flag.StringVar(&cfg.RepoURL, "repo-url", envOrDefault("REPO_URL", ""), "git repo URL for webhook auto-update")
	flag.StringVar(&cfg.RepoToken, "repo-token", envOrDefault("REPO_TOKEN", ""), "git repo access token")
	flag.StringVar(&cfg.WebhookSecret, "webhook-secret", envOrDefault("WEBHOOK_SECRET", ""), "HMAC secret for webhook validation")
	flag.StringVar(&cfg.NtfyURL, "ntfy-url", envOrDefault("NTFY_URL", ""), "ntfy server URL for failure notifications")
	flag.StringVar(&cfg.NtfyTopic, "ntfy-topic", envOrDefault("NTFY_TOPIC", ""), "ntfy topic for failure notifications")
	flag.BoolVar(&cfg.EnableWebhook, "webhook", envOrDefaultBool("ENABLE_WEBHOOK", false), "enable git-webhook auto-update feature")

	flag.Parse()
	return cfg
}

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

func envOrDefaultBool(key string, def bool) bool {
	v := os.Getenv(key)
	if v == "" {
		return def
	}
	return v == "true" || v == "1"
}