package main

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

func Test_configTelegram_enabled(t *testing.T) {
	if (&configTelegram{}).enabled() == true {
		t.Error("Telegram shouldn't be enabled")
	}

	if (&configTelegram{
		Enabled: true,
	}).enabled() == true {
		t.Error("Telegram shouldn't be enabled")
	}

	if (&configTelegram{
		Enabled: true,
		ChatID:  "abc",
	}).enabled() == true {
		t.Error("Telegram shouldn't be enabled")
	}

	if (&configTelegram{
		Enabled:  true,
		BotToken: "abc",
	}).enabled() == true {
		t.Error("Telegram shouldn't be enabled")
	}

	if (&configTelegram{
		Enabled:  true,
		BotToken: "abc",
		ChatID:   "abc",
	}).enabled() != true {
		t.Error("Telegram should be enabled")
	}
}

func Test_configTelegram_generateHTML(t *testing.T) {
	tg := &configTelegram{
		Enabled:  true,
		ChatID:   "abc",
		BotToken: "abc",
	}

	// Without Instant View

	expected := "Title\n\n<a href=\"https://example.com/s/1\">https://example.com/s/1</a>"
	if got := tg.generateHTML("Title", "https://example.com/test", "https://example.com/s/1"); got != expected {
		t.Errorf("Wrong result, got: %v", got)
	}

	// With Instant View

	tg.InstantViewHash = "abc"
	expected = "Title\n\n<a href=\"https://t.me/iv?rhash=abc&url=https%3A%2F%2Fexample.com%2Ftest\">https://example.com/s/1</a>"
	if got := tg.generateHTML("Title", "https://example.com/test", "https://example.com/s/1"); got != expected {
		t.Errorf("Wrong result, got: %v", got)
	}
}

func Test_configTelegram_send(t *testing.T) {
	fakeAppHttpClient.lock(true)
	defer fakeAppHttpClient.unlock()

	tg := &configTelegram{
		Enabled:  true,
		ChatID:   "chatid",
		BotToken: "bottoken",
	}

	fakeAppHttpClient.setFakeResponse(200, "", nil)

	err := tg.send("Message", "HTML")
	if err != nil {
		t.Errorf("Error: %v", err)
	}

	if fakeAppHttpClient.req == nil {
		t.Error("Empty request")
	}
	if fakeAppHttpClient.err != nil {
		t.Error("Error in request")
	}
	if fakeAppHttpClient.req.Method != http.MethodPost {
		t.Error("Wrong method")
	}
	if u := fakeAppHttpClient.req.URL.String(); u != "https://api.telegram.org/botbottoken/sendMessage?chat_id=chatid&parse_mode=HTML&text=Message" {
		t.Errorf("Wrong request URL, got: %v", u)
	}
}

func Test_goBlog_initTelegram(t *testing.T) {
	app := &goBlog{
		pPostHooks: []postHookFunc{},
	}

	app.initTelegram()

	if len(app.pPostHooks) != 1 {
		t.Error("Hook not registered")
	}
}

func Test_telegram(t *testing.T) {
	t.Run("Send post to Telegram", func(t *testing.T) {
		fakeAppHttpClient.lock(true)
		defer fakeAppHttpClient.unlock()

		fakeAppHttpClient.setFakeResponse(200, "", nil)

		app := &goBlog{
			pPostHooks: []postHookFunc{},
			cfg: &config{
				Server: &configServer{
					PublicAddress: "https://example.com",
				},
				Blogs: map[string]*configBlog{
					"en": {
						Telegram: &configTelegram{
							Enabled:  true,
							ChatID:   "chatid",
							BotToken: "bottoken",
						},
					},
				},
			},
		}
		app.setInMemoryDatabase()

		app.initTelegram()

		p := &post{
			Path: "/test",
			Parameters: map[string][]string{
				"title": {"Title"},
			},
			Published: time.Now().String(),
			Section:   "test",
			Blog:      "en",
			Status:    statusPublished,
		}

		app.pPostHooks[0](p)

		if u := fakeAppHttpClient.req.URL.String(); u != "https://api.telegram.org/botbottoken/sendMessage?chat_id=chatid&parse_mode=HTML&text=Title%0A%0A%3Ca+href%3D%22https%3A%2F%2Fexample.com%2Fs%2F1%22%3Ehttps%3A%2F%2Fexample.com%2Fs%2F1%3C%2Fa%3E" {
			t.Errorf("Wrong request URL, got: %v", u)
		}
	})

	t.Run("Telegram disabled", func(t *testing.T) {
		fakeAppHttpClient.lock(true)
		defer fakeAppHttpClient.unlock()

		fakeAppHttpClient.setFakeResponse(200, "", nil)

		app := &goBlog{
			pPostHooks: []postHookFunc{},
			cfg: &config{
				Server: &configServer{
					PublicAddress: "https://example.com",
				},
				Blogs: map[string]*configBlog{
					"en": {},
				},
			},
		}
		app.setInMemoryDatabase()

		app.initTelegram()

		p := &post{
			Path: "/test",
			Parameters: map[string][]string{
				"title": {"Title"},
			},
			Published: time.Now().String(),
			Section:   "test",
			Blog:      "en",
			Status:    statusPublished,
		}

		app.pPostHooks[0](p)

		if fakeAppHttpClient.req != nil {
			t.Error("There should be no request")
		}
	})
}