import { test, expect, devices } from '@playwright/test';
import {
  HS,
  api,
  createRoom,
  enc,
  ensureUser,
  hsReachable,
  joinRoom,
  loginUI,
  openRoom,
  sendText,
  uniq,
  TestUser,
} from './localHs';
import { collectConsole } from './helpers';

// Tier 3 — regression suite against the job's own Synapse (Gitea #220).
// Each test seeds what it needs through the CS API and drives the built
// client; nothing here touches a real deployment.
test.describe('local homeserver regression', () => {
  let alice: TestUser;
  let bob: TestUser;

  test.beforeAll(async () => {
    test.skip(!(await hsReachable()), `no local homeserver at ${HS} (set E2E_LOCAL_HS)`);
    alice = await ensureUser(uniq('e2e_alice_'));
    bob = await ensureUser(uniq('e2e_bob_'));
  });

  test('logs in, opens a room, sends and receives', async ({ page }) => {
    const console_ = collectConsole(page);
    const room = await createRoom(alice, 'Regression Room', { invite: [bob.userId] });
    await joinRoom(bob, room);
    await sendText(bob, room, 'hello from bob');
    await loginUI(page, alice);
    await openRoom(page, room);
    await expect(page.getByText('hello from bob')).toBeVisible();
    await page.locator('[data-slate-editor]').first().click();
    await page.keyboard.type('hello from alice');
    await page.keyboard.press('Enter');
    await expect(page.getByText('hello from alice')).toBeVisible();
    await expect
      .poll(
        async () =>
          (
            await api<{ chunk: { content: { body: string } }[] }>(
              'GET',
              `/_matrix/client/v3/rooms/${enc(room)}/messages?dir=b&limit=1`,
              bob.token,
            )
          ).chunk[0]?.content.body,
      )
      .toBe('hello from alice');
    expect(console_.unexpected()).toEqual([]);
  });

  test('your own message scrolls into view even after scrolling up (#212)', async ({ page }) => {
    const room = await createRoom(alice, 'Scroll Room');
    await Array.from({ length: 40 }).reduce<Promise<unknown>>(
      (chain, _, i) => chain.then(() => sendText(alice, room, `filler ${i}`)),
      Promise.resolve(),
    );
    await loginUI(page, alice);
    await openRoom(page, room);
    await page.mouse.move(600, 350);
    await page.mouse.wheel(0, -600);
    await expect(page.getByRole('button', { name: /Jump to Latest/ })).toBeVisible();
    await page.locator('[data-slate-editor]').first().click();
    await page.keyboard.type('sent while scrolled up');
    await page.keyboard.press('Enter');
    await expect(page.getByText('sent while scrolled up')).toBeInViewport();
    await expect(page.getByRole('button', { name: /Jump to Latest/ })).toHaveCount(0);
  });

  test('/kick failure is reported, not swallowed (#216)', async ({ page }) => {
    const room = await createRoom(alice, 'Kick Room', { invite: [bob.userId] });
    await joinRoom(bob, room);
    await loginUI(page, bob);
    await openRoom(page, room);
    const editor = page.locator('[data-slate-editor]').first();
    await editor.click();
    await page.keyboard.type('/kick', { delay: 40 });
    await page.keyboard.press('Tab'); // accept the command chip
    await page.keyboard.type(` ${alice.userId}`, { delay: 20 });
    await page.keyboard.press('Enter');
    await expect(page.getByText(/Could not kick .*You cannot kick/)).toBeVisible();
  });

  test('upload failure shows a plain sentence, never the raw MatrixError (#213)', async ({
    page,
  }) => {
    const room = await createRoom(alice, 'Upload Room');
    await loginUI(page, alice);
    await openRoom(page, room);
    await page.route(/\/_matrix\/media\/v3\/upload/, (route) =>
      route.fulfill({
        status: 413,
        contentType: 'application/json',
        body: JSON.stringify({ errcode: 'M_TOO_LARGE', error: 'nope' }),
      }),
    );
    const chooser = page.waitForEvent('filechooser');
    await page.getByRole('button', { name: 'Attach file' }).first().click();
    await (
      await chooser
    ).setFiles({
      name: 'pic.png',
      mimeType: 'image/png',
      buffer: Buffer.from(
        'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==',
        'base64',
      ),
    });
    const send = page.getByRole('button', { name: /^Send$/ });
    if (await send.count()) await send.first().click();
    else await page.getByRole('button', { name: 'Send message' }).click();
    await expect(page.getByText(/This file is larger than the server allows/)).toBeVisible();
    await expect(page.getByText(/MatrixError|_matrix\/media/)).toHaveCount(0);
  });

  test('forwarded message carries its provenance header', async ({ page }) => {
    const src = await createRoom(bob, 'Source Room', { invite: [alice.userId] });
    const dst = await createRoom(alice, 'Destination Room');
    await joinRoom(alice, src);
    await sendText(bob, src, 'the original message');
    await loginUI(page, alice);
    await openRoom(page, src);
    const msg = page.locator('[data-message-item]', { hasText: 'the original message' }).first();
    await msg.hover();
    await msg.getByRole('button', { name: 'More options' }).click();
    await page.getByText('Forward', { exact: true }).click();
    const search = page.getByPlaceholder('Search rooms…');
    await search.fill('Destination Room');
    await page.locator('button', { hasText: 'Destination Room' }).first().click();
    await page.getByRole('button', { name: /^Send to 1 room/ }).click();
    await expect(page.getByText(/Forwarded to/)).toBeVisible();
    await openRoom(page, dst);
    await expect(page.getByText(/Forwarded from .* in Source Room/)).toBeVisible();
    await expect(page.getByText('the original message')).toBeVisible();
  });

  test('thread panel: opens from the chip and yields the member drawer at 1400px (#218)', async ({
    browser,
  }) => {
    const ctx = await browser.newContext({ viewport: { width: 1400, height: 850 } });
    const page = await ctx.newPage();
    const room = await createRoom(alice, 'Thread Room');
    const root = await sendText(alice, room, 'thread root');
    await sendText(alice, room, 'a reply', {
      'm.relates_to': {
        rel_type: 'm.thread',
        event_id: root,
        is_falling_back: true,
        'm.in_reply_to': { event_id: root },
      },
    });
    await loginUI(page, alice);
    await openRoom(page, room);
    await page
      .locator('[data-message-item]', { hasText: 'thread root' })
      .getByText(/1 reply/)
      .click();
    await expect(page.locator('[data-slate-editor]')).toHaveCount(2);
    const widths = await page
      .locator('[data-slate-editor]')
      .evaluateAll((els) => els.map((e) => e.getBoundingClientRect().width));
    expect(Math.min(...widths)).toBeGreaterThan(120);
    await ctx.close();
  });

  test('timeline image opens the gallery lightbox (#219)', async ({ page }) => {
    const room = await createRoom(alice, 'Lightbox Room');
    const png = Buffer.from(
      'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNkYPhfDwAChwGA60e6kgAAAABJRU5ErkJggg==',
      'base64',
    );
    const up = await fetch(`${HS}/_matrix/media/v3/upload?filename=a.png`, {
      method: 'POST',
      headers: { Authorization: `Bearer ${alice.token}`, 'Content-Type': 'image/png' },
      body: png,
    }).then((r) => r.json() as Promise<{ content_uri: string }>);
    await api(
      'PUT',
      `/_matrix/client/v3/rooms/${enc(room)}/send/m.room.message/img1`,
      alice.token,
      {
        msgtype: 'm.image',
        body: 'a.png',
        url: up.content_uri,
        info: { mimetype: 'image/png', size: png.length, w: 1, h: 1 },
      },
    );
    await loginUI(page, alice);
    await openRoom(page, room);
    await page.locator('[data-message-item] img[alt="a.png"]').click();
    const viewer = page.getByRole('dialog', { name: 'Media viewer' });
    await expect(viewer).toBeVisible();
    await expect(viewer.getByText('1 / 1')).toBeVisible();
    await page.keyboard.press('Escape');
    await expect(viewer).toHaveCount(0);
  });

  test('warns when the local clock is far off the server (#158)', async ({ page }) => {
    const room = await createRoom(alice, 'Skew Room', { invite: [bob.userId] });
    await joinRoom(bob, room);
    await page.clock.install({ time: Date.now() + 14 * 60 * 1000 });
    await loginUI(page, alice);
    await openRoom(page, room);
    for (let i = 0; i < 4; i += 1) {
      // eslint-disable-next-line no-await-in-loop
      await sendText(bob, room, `tick ${i}`);
      // eslint-disable-next-line no-await-in-loop
      await page.waitForTimeout(500);
    }
    await expect(page.getByText(/clock is .*14 minutes ahead of the server/)).toBeVisible();
    await page.getByRole('button', { name: 'Dismiss for 24 h' }).click();
    await expect(page.getByText(/clock is .*ahead of the server/)).toHaveCount(0);
  });

  test('status save survives the presence rate limit (#226)', async ({ page }) => {
    let lastOk = 0;
    await page.route(/\/presence\/[^/]+\/status/, (route) => {
      const now = Date.now();
      if (now - lastOk < 10_000) {
        return route.fulfill({
          status: 429,
          contentType: 'application/json',
          body: JSON.stringify({
            errcode: 'M_LIMIT_EXCEEDED',
            error: 'Too Many Requests',
            retry_after_ms: 10_000 - (now - lastOk),
          }),
        });
      }
      lastOk = now;
      return route.continue();
    });
    await loginUI(page, alice);
    await page
      .locator('button', { hasText: new RegExp(`^${alice.localpart[0]}$`) })
      .first()
      .click();
    await page.getByText('Account', { exact: true }).first().click();
    const input = page.getByLabel('Status message');
    const status = uniq('status ');
    await input.fill(status);
    await input.locator('xpath=ancestor::form[1]').getByRole('button', { name: 'Save' }).click();
    await expect(page.getByText(/Failed to save status/)).toHaveCount(0);
    await expect
      .poll(
        async () =>
          (
            await api<{ status_msg?: string }>(
              'GET',
              `/_matrix/client/v3/presence/${enc(alice.userId)}/status`,
              alice.token,
            )
          ).status_msg,
        { timeout: 30_000 },
      )
      .toBe(status);
  });

  test('touch: long-press opens the message action sheet (#166)', async ({ browser }) => {
    const ctx = await browser.newContext({ ...devices['Pixel 7'] });
    const page = await ctx.newPage();
    const room = await createRoom(alice, 'Touch Room');
    await sendText(alice, room, 'press and hold me');
    await loginUI(page, alice);
    await openRoom(page, room);
    const msg = page.locator('[data-message-item]', { hasText: 'press and hold me' });
    const box = (await msg.boundingBox())!;
    const cdp = await ctx.newCDPSession(page);
    const x = box.x + 100;
    const y = box.y + box.height / 2;
    await cdp.send('Input.dispatchTouchEvent', { type: 'touchStart', touchPoints: [{ x, y }] });
    await page.waitForTimeout(700);
    await cdp.send('Input.dispatchTouchEvent', { type: 'touchEnd', touchPoints: [] });
    const sheet = page.getByRole('dialog', { name: 'Message actions' });
    await expect(sheet).toBeVisible();
    await expect(sheet.getByText('Reply', { exact: true })).toBeVisible();
    await ctx.close();
  });
});