package main_test

import (
	"net/http"
	"net/http/httptest"
	"os"
	"testing"
)

func TestResources_Favicon(t *testing.T) {
	// Create resources directory and dummy favicon if not exists
	if _, err := os.Stat("resources"); os.IsNotExist(err) {
		os.Mkdir("resources", 0755)
	}
	if _, err := os.Stat("resources/favicon.png"); os.IsNotExist(err) {
		os.WriteFile("resources/favicon.png", []byte("dummy"), 0644)
		defer os.Remove("resources/favicon.png")
	}

	// Setup handler exactly as in main.go
	mux := http.NewServeMux()
	mux.Handle("/resources/", http.StripPrefix("/resources/", http.FileServer(http.Dir("resources"))))
	mux.HandleFunc("GET /favicon.ico", func(w http.ResponseWriter, r *http.Request) {
		http.ServeFile(w, r, "resources/favicon.png")
	})

	// Test request for resources path
	req := httptest.NewRequest("GET", "/resources/favicon.png", nil)
	w := httptest.NewRecorder()
	mux.ServeHTTP(w, req)
	if w.Code != http.StatusOK {
		t.Errorf("GET /resources/favicon.png failed: %d", w.Code)
	}

	// Test request for favicon.ico
	reqIco := httptest.NewRequest("GET", "/favicon.ico", nil)
	wIco := httptest.NewRecorder()
	mux.ServeHTTP(wIco, reqIco)
	if wIco.Code != http.StatusOK {
		t.Errorf("GET /favicon.ico failed: %d", wIco.Code)
	}
}