package main

import (
	"fmt"
	"net/http"
	"time"
)

func startDyfiUpdater(hostname, username, password string) {
	if hostname == "" || username == "" || password == "" {
		return
	}

	logger.Info("Starting dy.fi updater for %s", hostname)
	
	update := func() {
		url := fmt.Sprintf("https://www.dy.fi/nic/update?hostname=%s", hostname)
		req, _ := http.NewRequest("GET", url, nil)
		req.SetBasicAuth(username, password)
		req.Header.Set("User-Agent", "Go-TwoStepAuth-Client/1.0")

		client := &http.Client{Timeout: 10 * time.Second}
		resp, err := client.Do(req)
		if err != nil {
			logger.Error("dy.fi update failed: %v", err)
			return
		}
		defer resp.Body.Close()
		logger.Info("dy.fi update status: %s", resp.Status)
	}

	// Update immediately on start
	update()

	// Update every 7 days (dy.fi requires update at least every 30 days)
	go func() {
		ticker := time.NewTicker(7 * 24 * time.Hour)
		for range ticker.C {
			update()
		}
	}()
}