import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";

vi.mock("../../src/auth", () => ({
  getAccessToken: () => "test.jwt",
  refreshTokens: vi.fn(async () => undefined),
}));
vi.mock("../../src/config", () => ({
  env: { apiBaseUrl: "https://example.test" },
}));
vi.mock("../../src/services", () => ({
  dialogApi: { messages: vi.fn(async () => ({ items: [], next_cursor: null })) },
}));
vi.mock("react-native", () => ({
  AppState: { currentState: "active" },
}));
vi.mock("expo-linking", () => ({
  openURL: vi.fn(async () => undefined),
}));

import {
  NOTIFICATION_OUTAGE_MS,
  NOTIFICATION_POLL_INTERVAL_MS,
  NotificationRealtimeClient,
} from "../../src/realtime";
import {
  actionDialogId,
  actionUrl,
  formatNotificationPrice,
  notificationIcon,
  notificationPalette,
  typeMap,
} from "../../src/notification-presenter";
import type { NotificationType } from "../../src/types";

class MockWebSocket {
  static readonly OPEN = 1;
  static instances: MockWebSocket[] = [];
  readonly sent: string[] = [];
  readyState = MockWebSocket.OPEN;
  onopen?: () => void;
  onmessage?: (event: { data: string }) => void;
  onclose?: (event: { code: number }) => void;
  onerror?: () => void;

  constructor(readonly url: string, readonly protocols: string[]) {
    MockWebSocket.instances.push(this);
  }

  send(value: string) {
    this.sent.push(value);
  }

  close() {}
}

describe("notification catalog presentation", () => {
  it("использует neutral и bell для неизвестных значений", () => {
    expect(notificationPalette("future-token")).toEqual(notificationPalette("neutral"));
    expect(notificationIcon("future-icon")).toBe("bell");
    expect(notificationIcon(null)).toBe("bell");
  });

  it("рендерит новый вид только по данным каталога", () => {
    const type: NotificationType = {
      code: "future_type",
      label: "Новый вид",
      color_token: "info",
      icon_code: "news",
      cta_text: "Открыть",
      cta_action: "open_detail",
      countable: true,
      contour: "P",
      button_primary: { code: "gotit", label: "Понятно" },
      button_secondary: null,
    };
    expect(typeMap([type]).get("future_type")).toEqual(type);
    expect(notificationPalette(type.color_token).accent).toBe("#2563eb");
  });

  it("форматирует цену в рублях и безопасно игнорирует мусор", () => {
    expect(formatNotificationPrice("1500")).toContain("1 500");
    expect(formatNotificationPrice("not-a-number")).toBeNull();
  });

  it("читает результат CTA из backend state response", () => {
    const base = {
      notification_id: "notification-1",
      lifecycle_status: "active" as const,
      visibility: "visible" as const,
      is_read: true,
      close_reason: null,
      date_expired: null,
      unread_count: 0,
    };
    expect(actionUrl({ ...base, result: { action: "open_url", url: "https://pay.test" } }))
      .toBe("https://pay.test");
    expect(actionDialogId({
      ...base,
      result: {
        action: "chat_message_sent",
        message: {
          message_id: "message-1",
          dialog_id: "dialog-1",
          sender_type: "client",
          content_kind: "text",
          text: "Тест",
          attachments: [],
          safety_status: "allowed",
          delivery_status: "delivered",
          created_at: "2026-07-27T12:00:00Z",
        },
      },
    })).toBe("dialog-1");
    expect(actionUrl({ ...base, result: null })).toBeUndefined();
    expect(actionDialogId({ ...base, result: null })).toBeUndefined();
  });
});

describe("notification realtime degradation", () => {
  beforeEach(() => {
    vi.useFakeTimers();
    MockWebSocket.instances = [];
    globalThis.WebSocket = MockWebSocket as unknown as typeof WebSocket;
  });

  afterEach(() => {
    vi.useRealTimers();
  });

  it("подписывается с notifications:true", () => {
    const client = new NotificationRealtimeClient(vi.fn(), vi.fn(async () => undefined), vi.fn());
    client.start();
    const socket = MockWebSocket.instances[0]!;
    socket.onopen?.();
    expect(JSON.parse(socket.sent[0]!)).toEqual({
      type: "subscribe",
      dialog_ids: [],
      notifications: true,
    });
    client.stop();
  });

  it("после 30 секунд включает polling с интервалом 60 секунд", async () => {
    const reconcile = vi.fn(async () => undefined);
    const state = vi.fn();
    const client = new NotificationRealtimeClient(vi.fn(), reconcile, state);
    client.start();
    MockWebSocket.instances[0]!.onclose?.({ code: 1006 });

    await vi.advanceTimersByTimeAsync(NOTIFICATION_OUTAGE_MS);
    expect(state).toHaveBeenCalledWith("polling");
    expect(reconcile).toHaveBeenCalledTimes(1);

    await vi.advanceTimersByTimeAsync(NOTIFICATION_POLL_INTERVAL_MS);
    expect(reconcile).toHaveBeenCalledTimes(2);
    client.stop();
  });
});