package main

import (
	"flag"
	"os"

	"varde/internal/ntfy"
	"varde/modules/keyserver"
	"varde/modules/webhook"
	"varde/modules/webserver"
)

type Config struct {
	Port string

	Webserver webserver.Config
	Keyserver keyserver.Config
	Webhook   webhook.Config
	Ntfy      ntfy.Config
}

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

	flag.StringVar(&cfg.Port, "port", envOrDefault("PORT", "80"), "port to listen on")

	flag.BoolVar(&cfg.Webserver.Enabled, "enable-webserver", envOrDefaultBool("ENABLE_WEBSERVER", false), "enable static webserver module")
	flag.StringVar(&cfg.Webserver.ContentDir, "content-dir", envOrDefault("CONTENT_DIR", "./content"), "directory to serve as content")

	flag.BoolVar(&cfg.Keyserver.Enabled, "enable-keyserver", envOrDefaultBool("ENABLE_KEYSERVER", false), "enable WKD keyserver module")
	flag.StringVar(&cfg.Keyserver.KeysDir, "keys-dir", envOrDefault("KEYS_DIR", "./keys"), "directory to serve as WKD keys")

	flag.BoolVar(&cfg.Webhook.Enabled, "enable-webhook", envOrDefaultBool("ENABLE_WEBHOOK", false), "enable git-webhook auto-update module")
	flag.StringVar(&cfg.Webhook.RepoURL, "repo-url", envOrDefault("REPO_URL", ""), "git repo URL for webhook auto-update")
	flag.StringVar(&cfg.Webhook.RepoToken, "repo-token", envOrDefault("REPO_TOKEN", ""), "git repo access token")
	flag.StringVar(&cfg.Webhook.WebhookSecret, "webhook-secret", envOrDefault("WEBHOOK_SECRET", ""), "HMAC secret for webhook validation")

	flag.StringVar(&cfg.Ntfy.URL, "ntfy-url", envOrDefault("NTFY_URL", ""), "ntfy server URL for failure notifications")
	flag.StringVar(&cfg.Ntfy.Topic, "ntfy-topic", envOrDefault("NTFY_TOPIC", ""), "ntfy topic for failure notifications")

	flag.Parse()

	// webhook pulls into the same directory the webserver serves
	cfg.Webhook.ContentDir = cfg.Webserver.ContentDir

	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"
}