package server

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"strings"
	"sync"
	"testing"
)

func TestTelegramSend(t *testing.T) {
	var mu sync.Mutex
	var got []map[string]any
	api := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if r.URL.Path != "/botTOKEN/sendMessage" {
			http.NotFound(w, r)
			return
		}
		var body map[string]any
		_ = json.NewDecoder(r.Body).Decode(&body)
		mu.Lock()
		got = append(got, body)
		mu.Unlock()
		if body["chat_id"] == "bad" {
			w.WriteHeader(http.StatusBadRequest)
			w.Write([]byte(`{"ok":false,"description":"Bad Request: chat not found"}`))
			return
		}
		w.Write([]byte(`{"ok":true}`))
	}))
	defer api.Close()

	tg := telegram{api: api.URL, token: "TOKEN", chats: []string{"1", "-1002"}, thread: "7"}
	n := notification{Title: "Бэкап готов: a<b>.example", Msg: "1 ГБ", Priority: "low", Tags: "white_check_mark", Link: "https://bm.test/clients/1"}
	if err := tg.send(context.Background(), n); err != nil {
		t.Fatal(err)
	}
	if len(got) != 2 {
		t.Fatalf("отправлено %d сообщений, ожидалось 2", len(got))
	}
	m := got[0]
	text, _ := m["text"].(string)
	if !strings.HasPrefix(text, "✅ <b>Бэкап готов: a&lt;b&gt;.example</b>") || !strings.Contains(text, `href="https://bm.test/clients/1"`) {
		t.Errorf("текст: %q", text)
	}
	if m["parse_mode"] != "HTML" || m["disable_notification"] != true || m["message_thread_id"] != float64(7) {
		t.Errorf("параметры: %v", m)
	}

	tg.chats = []string{"bad"}
	err := tg.send(context.Background(), notification{Title: "x", Priority: "high"})
	if err == nil || !strings.Contains(err.Error(), "chat not found") {
		t.Fatalf("ошибка: %v", err)
	}
}

func TestChannelsFromSettings(t *testing.T) {
	s, _ := newTestServer(t)
	if len(s.channels()) != 0 {
		t.Fatal("без настроек каналов быть не должно")
	}
	_ = s.st.SetSetting(settingTGToken, "T")
	if len(s.channels()) != 0 {
		t.Fatal("Telegram без chat id включаться не должен")
	}
	_ = s.st.SetSetting(settingTGChats, "1")
	_ = s.st.SetSetting(settingNtfyURL, "https://ntfy.test/x")
	if n := len(s.channels()); n != 2 {
		t.Fatalf("каналов %d, ожидалось 2", n)
	}
	if got := splitList("1, -100;2\n 3"); strings.Join(got, ",") != "1,-100,2,3" {
		t.Fatalf("splitList: %v", got)
	}
}