import { test, expect } from "@playwright/test";
import { createMultiSession } from "@suaveplan/testing-e2e/multi-session";

test.describe("BroadcastChannel", () => {
  test("sender and receiver pages both render page-title", async ({ browser }) => {
    const { pages, teardown } = await createMultiSession({
      browser,
      count: 2,
      baseUrl: "http://localhost:3200/network-broadcast",
      roles: ["sender", "receiver"],
    });

    try {
      const sender = pages[0]!;
      const receiver = pages[1]!;
      await expect(sender.locator('[data-testid="page-title"]')).toContainText(
        "Network — BroadcastChannel",
      );
      await expect(receiver.locator('[data-testid="page-title"]')).toContainText(
        "Network — BroadcastChannel",
      );
    } finally {
      await teardown();
    }
  });

  test("sender has message-input and send-button", async ({ browser }) => {
    const { pages, teardown } = await createMultiSession({
      browser,
      count: 1,
      baseUrl: "http://localhost:3200/network-broadcast",
      roles: ["sender"],
    });

    try {
      const sender = pages[0]!;
      await expect(
        sender.locator('[data-testid="message-input"]'),
      ).toBeVisible();
      await expect(
        sender.locator('[data-testid="send-button"]'),
      ).toBeVisible();
    } finally {
      await teardown();
    }
  });

  test("receiver does not have send-button", async ({ browser }) => {
    const { pages, teardown } = await createMultiSession({
      browser,
      count: 1,
      baseUrl: "http://localhost:3200/network-broadcast",
      roles: ["receiver"],
    });

    try {
      const receiver = pages[0]!;
      await expect(
        receiver.locator('[data-testid="send-button"]'),
      ).not.toBeVisible();
    } finally {
      await teardown();
    }
  });

  test("message sent by sender appears in receiver output", async ({ browser }) => {
    const { pages, teardown } = await createMultiSession({
      browser,
      count: 2,
      baseUrl: "http://localhost:3200/network-broadcast",
      roles: ["sender", "receiver"],
    });

    try {
      const sender = pages[0]!;
      const receiver = pages[1]!;

      await expect(sender.locator('[data-testid="message-input"]')).toBeVisible();
      await expect(receiver.locator('[data-testid="output"]')).toBeVisible();

      const msg = `broadcast-test-${Date.now()}`;
      await sender.locator('[data-testid="message-input"]').fill(msg);
      await sender.locator('[data-testid="send-button"]').click();

      // BroadcastChannel delivers to other contexts in the same browser
      await expect(receiver.locator('[data-testid="output"]')).toContainText(msg, {
        timeout: 5000,
      });
    } finally {
      await teardown();
    }
  });
});