import { expect, test, type Locator, type Page } from "@playwright/test";

import { waitForAnimations } from "../helpers/animations";
import { installMockBridge } from "../helpers/bridge";

const SHOTS = "test-results/persistent-agent-audience";
const CHANNEL_ID = "9a1657ac-f7aa-5db0-b632-d8bbeb6dfb50";
const AGENT_A = "a".repeat(64);
const AGENT_B = "b".repeat(64);
const THREAD_ROOT_ID = "mock-general-welcome";
const KEEP_MENTIONED_AGENTS_PINNED_STORAGE_KEY =
  "buzz.messages.keepMentionedAgentsPinned";

test.beforeEach(async ({ page }) => {
  await page.addInitScript((storageKey) => {
    window.localStorage.removeItem(storageKey);
  }, KEEP_MENTIONED_AGENTS_PINNED_STORAGE_KEY);
});

async function keepMentionedAgentsPinned(page: Page) {
  await page.addInitScript((storageKey) => {
    window.localStorage.setItem(storageKey, "true");
  }, KEEP_MENTIONED_AGENTS_PINNED_STORAGE_KEY);
}

async function seedTheme(page: Page, theme: string, accent = "#c0a2f1") {
  await page.addInitScript(
    ({ selectedTheme, selectedAccent }) => {
      window.localStorage.setItem("buzz-theme", selectedTheme);
      window.localStorage.setItem("buzz-accent-color", selectedAccent);
    },
    { selectedTheme: theme, selectedAccent: accent },
  );
}

async function automaticallyMention(
  composer: ReturnType<typeof channelComposer>,
  displayName: string,
) {
  await composer.locator("[data-mention-picker-trigger]").click();
  await composer
    .getByTestId("mention-autocomplete")
    .getByRole("button", { name: `Automatically mention ${displayName}` })
    .click();
  await expect(composer.getByTestId("message-input")).toContainText(
    `@${displayName}`,
  );
  await composer.locator("[data-mention-picker-trigger]").click();
}

async function openGeneral(page: Page) {
  await page.goto(`/#/channels/${CHANNEL_ID}`, {
    waitUntil: "domcontentloaded",
  });
  await expect(page.getByTestId("chat-title")).toHaveText("general");
}

async function openThread(page: Page, threadRootId = THREAD_ROOT_ID) {
  await page.goto(
    `/#/channels/${CHANNEL_ID}?messageId=${threadRootId}&thread=${threadRootId}`,
    { waitUntil: "domcontentloaded" },
  );
  await expect(page.getByTestId("message-thread-panel")).toBeVisible();
}

function channelComposer(page: Page) {
  return page.getByTestId("channel-composer-overlay");
}

function threadComposer(page: Page) {
  return page.getByTestId("thread-composer-overlay");
}

async function readComposerCaret(input: Locator) {
  return input.evaluate((element) => {
    const selection = window.getSelection();
    if (!selection?.anchorNode || !element.contains(selection.anchorNode)) {
      return null;
    }
    const range = document.createRange();
    range.selectNodeContents(element);
    range.setEnd(selection.anchorNode, selection.anchorOffset);
    return range.toString().length;
  });
}

async function pressPrimaryShift(page: Page, key: "M") {
  const isMac = await page.evaluate(() =>
    /mac|iphone|ipad|ipod/i.test(navigator.platform),
  );
  await page.keyboard.press(`${isMac ? "Meta" : "Control"}+Shift+${key}`);
}

async function readOutgoingMentionPubkeys(page: Page, content: string) {
  return page.evaluate((expectedContent) => {
    const signedEvent = window.__BUZZ_E2E_SIGNED_EVENTS__?.find(
      (event) => event.content === expectedContent,
    );
    if (signedEvent) {
      return (signedEvent.tags ?? [])
        .filter((tag) => tag[0] === "p" && tag[1])
        .map((tag) => tag[1]);
    }

    for (const entry of window.__BUZZ_E2E_COMMAND_LOG__ ?? []) {
      if (entry.command === "send_channel_message") {
        const payload = entry.payload as
          | { content?: string; mentionPubkeys?: string[] }
          | undefined;
        if (payload?.content === expectedContent) {
          return payload.mentionPubkeys ?? [];
        }
      }

      if (entry.command !== "plugin:websocket|send") continue;
      const data = (
        entry.payload as { message?: { data?: string } } | undefined
      )?.message?.data;
      if (!data) continue;

      try {
        const frame = JSON.parse(data) as [
          string,
          { content?: string; tags?: string[][] },
        ];
        if (frame[0] !== "EVENT" || frame[1]?.content !== expectedContent) {
          continue;
        }
        return (frame[1].tags ?? [])
          .filter((tag) => tag[0] === "p" && tag[1])
          .map((tag) => tag[1]);
      } catch {}
    }

    return null;
  }, content);
}

async function emitMockMessage(
  page: Page,
  content: string,
  mentionPubkeys: string[],
) {
  await page.evaluate(
    ({ body, mentions }) => {
      window.__BUZZ_E2E_EMIT_MOCK_MESSAGE__?.({
        channelName: "general",
        content: body,
        mentionPubkeys: mentions,
      });
    },
    { body: content, mentions: mentionPubkeys },
  );
}

async function installAudienceFixtures(
  page: Page,
  options: {
    deferredComposerUploads?: boolean;
    sendMessageDelayMs?: number;
    sendMessageErrors?: string[];
    uploadDelayMs?: number;
    uploadDescriptors?: Array<{
      filename: string;
      sha256: string;
      size: number;
      type: string;
      uploaded: number;
      url: string;
    }>;
    usersBatchDelayMs?: number;
  } = {},
) {
  await installMockBridge(page, {
    ...options,
    managedAgents: [
      {
        pubkey: AGENT_A,
        name: "Morgarita",
        status: "running",
        channelNames: ["general"],
      },
      {
        pubkey: AGENT_B,
        name: "Vogue",
        status: "running",
        channelNames: ["general"],
      },
    ],
  });
}

test("keeps a queued-attachment send locked through upload and send settlement", async ({
  page,
}) => {
  await installAudienceFixtures(page, {
    deferredComposerUploads: true,
    uploadDelayMs: 2_000,
    sendMessageDelayMs: 2_000,
    uploadDescriptors: [
      {
        filename: "delayed-video.mp4",
        sha256: "d".repeat(64),
        size: 16,
        type: "video/mp4",
        uploaded: 1,
        url: `https://mock.relay/media/${"d".repeat(64)}.mp4`,
      },
    ],
  });
  await openGeneral(page);

  const composer = channelComposer(page);
  const composerForm = composer.getByTestId("message-composer");
  const input = composer.getByTestId("message-input");
  await input.fill("delayed upload");

  const [chooser] = await Promise.all([
    page.waitForEvent("filechooser"),
    composer.getByRole("button", { name: "Attach file" }).click(),
  ]);
  await chooser.setFiles({
    buffer: Buffer.from("delayed video"),
    mimeType: "video/mp4",
    name: "delayed-video.mp4",
  });

  const sendAttempts = () =>
    page.evaluate(
      () =>
        window.__BUZZ_E2E_COMMAND_LOG__?.filter(
          (entry) => entry.command === "send_channel_message",
        ).length ?? 0,
    );
  const sendAttemptsBefore = await sendAttempts();
  await input.press("Enter");
  await expect(composer.getByTestId("composer-upload-progress")).toBeVisible();

  // Observe the synchronous lock itself after upload has started. The exact
  // premature-release mutation (`void uploadSettled; await Promise.resolve()`)
  // has already cleared this attribute by this boundary, before any retryable
  // downstream command or restored-audience timing can obscure the defect.
  await expect(composerForm).toHaveAttribute("data-submit-locked", "true");
  await input.press("Enter");
  await input.press("Enter");
  await expect(composerForm).toHaveAttribute("data-submit-locked", "true");

  await expect.poll(sendAttempts).toBe(sendAttemptsBefore + 1);

  // Command entry marks the independently delayed finishSend() window. Keep
  // the synchronous lock held and fence repeated submits until it settles.
  await expect(composer.getByTestId("composer-upload-progress")).toBeVisible();
  await expect(composerForm).toHaveAttribute("data-submit-locked", "true");
  await input.press("Enter");
  await input.press("Enter");
  await expect(composerForm).toHaveAttribute("data-submit-locked", "true");

  await expect(
    page
      .getByTestId("message-row")
      .filter({ hasText: "delayed upload" })
      .last(),
  ).toBeVisible({ timeout: 5_000 });
  await expect(composerForm).toHaveAttribute("data-submit-locked", "false");
});

test("automatically mentions multiple agents from the mention picker", async ({
  page,
}) => {
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  await automaticallyMention(composer, "Morgarita");
  await automaticallyMention(composer, "Vogue");

  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toBeVisible();
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_B}`),
  ).toBeVisible();
  await expect(
    composer.getByRole("button", { name: "Manage automatic agent mentions" }),
  ).toBeVisible();
});

test("Tab inserts a one-time agent mention by default", async ({ page }) => {
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  const input = composer.getByTestId("message-input");
  await input.fill("@Mor");
  await expect(composer.getByTestId("mention-autocomplete")).toBeVisible();

  await input.press("Tab");

  await expect(input).toHaveText("@Morgarita ");
  await expect(composer.getByTestId("mention-autocomplete")).toHaveCount(0);
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toHaveCount(0);
  const selectAllShortcut = await page.evaluate(() =>
    /mac|iphone|ipad|ipod/i.test(navigator.platform) ? "Meta+A" : "Control+A",
  );
  await input.press(selectAllShortcut);
  await input.press("Backspace");
  await expect(input).toHaveText("");
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toHaveCount(0);
});

test("disabling automatic mentions leaves the composer empty after send", async ({
  page,
}) => {
  await keepMentionedAgentsPinned(page);
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  const input = composer.getByTestId("message-input");
  await composer.getByTestId("message-insert-mention").click();
  await composer.getByTestId("mention-options-trigger").click();
  const preference = composer.getByTestId("mention-keep-agents-pinned-toggle");
  await expect(preference).toHaveAttribute("data-state", "checked");
  await preference.click();
  await expect(preference).toHaveAttribute("data-state", "unchecked");
  await input.press("Escape");

  await input.fill("@Mor");
  await expect(composer.getByTestId("mention-autocomplete")).toBeVisible();
  await input.press("Tab");
  await input.type("test");
  await expect(input).toHaveText("@Morgarita test");
  await input.press("Enter");

  await expect(input).toHaveText("");
  await expect(input.locator(".agent-mention-highlight")).toHaveCount(0);
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toHaveCount(0);
  await expect
    .poll(() => readOutgoingMentionPubkeys(page, "@Morgarita test"))
    .toContain(AGENT_A);
});

test("primary+Shift+M addresses the default agent, then selects the highlighted agent", async ({
  page,
}) => {
  await keepMentionedAgentsPinned(page);
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  const input = composer.getByTestId("message-input");
  await input.fill("draft text");
  await pressPrimaryShift(page, "M");

  await expect(input).toHaveText("@alice draft text");
  await expect(input.locator(".agent-mention-highlight")).toHaveText("alice");
  await expect(
    page.getByTestId("composer-auto-pin-confirmation"),
  ).toContainText("alice will be mentioned automatically");
  await pressPrimaryShift(page, "M");
  await expect(input).toHaveText("draft text");
  await pressPrimaryShift(page, "M");
  await expect(input).toHaveText("@alice draft text");
  await expect(
    composer
      .getByTestId("composer-address-locks")
      .getByRole("button", { name: /^Stop automatically mentioning / }),
  ).toHaveCount(1);

  await input.fill("@Vog");
  const menu = composer.getByTestId("mention-autocomplete");
  await expect(menu.getByTestId(`mention-suggestion-${AGENT_B}`)).toHaveClass(
    /(?:^|\s)bg-accent(?:\s|$)/,
  );
  await pressPrimaryShift(page, "M");

  await expect(menu).toHaveCount(0);
  await expect(input).toHaveText("@Vogue ");
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_B}`),
  ).toBeVisible();
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toHaveCount(0);
  await expect(
    composer
      .getByTestId("composer-address-locks")
      .getByRole("button", { name: /^Stop automatically mentioning / }),
  ).toHaveCount(1);
});

test("primary+Shift+M favors the most recently mentioned eligible agent", async ({
  page,
}) => {
  await installAudienceFixtures(page);
  await openGeneral(page);
  await emitMockMessage(page, "Please ask Vogue", [AGENT_B]);

  const input = channelComposer(page).getByTestId("message-input");
  await input.fill("draft text");
  await input.press("ArrowLeft");
  await input.press("ArrowLeft");
  await expect.poll(() => readComposerCaret(input)).toBe(8);
  await pressPrimaryShift(page, "M");

  await expect(input).toHaveText("@Vogue draft text");
  await expect.poll(() => readComposerCaret(input)).toBe(15);
  await pressPrimaryShift(page, "M");
  await expect(input).toHaveText("draft text");
  await pressPrimaryShift(page, "M");
  await expect(input).toHaveText("@Vogue draft text");
});

test("the mention button opens settings and can undo an address", async ({
  page,
}) => {
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  await automaticallyMention(composer, "Morgarita");
  const input = composer.getByTestId("message-input");
  const ingress = composer.getByRole("button", {
    name: "Manage automatic agent mentions",
  });

  await input.type("draft text");
  await ingress.click();
  const menu = composer.getByTestId("mention-autocomplete");
  await expect(menu).toBeVisible();
  await expect(input).toHaveText("@Morgarita draft text");
  await page.getByTestId("mention-options-trigger").click();
  await expect(
    page.getByTestId("mention-keep-agents-pinned-toggle"),
  ).toBeVisible();
  const layerBox = await composer
    .getByTestId("mention-autocomplete-layer")
    .boundingBox();
  const optionsBox = await page
    .getByTestId("mention-options-trigger")
    .boundingBox();
  expect(layerBox).not.toBeNull();
  expect(optionsBox).not.toBeNull();
  if (!layerBox || !optionsBox) throw new Error("Mention tray is not laid out");
  await page.mouse.click(layerBox.x + 4, optionsBox.y + optionsBox.height / 2);
  await expect(menu).toHaveCount(0);
  await expect(input).toHaveText("@Morgarita draft text");
  await ingress.click();
  await expect(menu).toBeVisible();
  await expect(page.getByTestId("mention-options-trigger")).toHaveAttribute(
    "aria-expanded",
    "false",
  );
  await expect(
    page.getByTestId("mention-keep-agents-pinned-toggle"),
  ).toHaveCount(0);
  await ingress.click();
  await expect(menu).toHaveCount(0);
  await expect(input).toHaveText("@Morgarita draft text");
  await ingress.click();
  await expect(menu).toBeVisible();
  await expect(page.getByTestId("user-profile-panel")).toHaveCount(0);
  await expect(
    menu.getByRole("button", {
      name: "Stop automatically mentioning Morgarita",
    }),
  ).toHaveAttribute("aria-pressed", "true");

  await menu
    .getByRole("button", { name: "Stop automatically mentioning Morgarita" })
    .click();
  await expect(input).toHaveText("draft text");
  await expect(
    composer.getByRole("button", { name: "Mention someone" }),
  ).toBeVisible();
  await input.fill("");

  await menu
    .getByRole("button", { name: "Mention Morgarita", exact: true })
    .click();
  await expect(input).toHaveText("@Morgarita ");
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toBeVisible();

  await input.type("later");
  await input.press("Enter");
  await expect(input).toHaveText("");
  await expect
    .poll(() => readOutgoingMentionPubkeys(page, "@Morgarita later"))
    .toContain(AGENT_A);
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toHaveCount(0);
});

test("always-mentioned agents remain selected without replaying their animation while Enter-send resolves", async ({
  page,
}) => {
  await installAudienceFixtures(page, {
    sendMessageDelayMs: 1_500,
    usersBatchDelayMs: 1_500,
  });
  await openThread(page);

  const composer = threadComposer(page);
  await automaticallyMention(composer, "Morgarita");
  const input = composer.getByTestId("message-input");
  await input.evaluate((element) => {
    const snapshots = [element.textContent ?? ""];
    new MutationObserver(() =>
      snapshots.push(element.textContent ?? ""),
    ).observe(element, { childList: true, characterData: true, subtree: true });
    (
      window as typeof window & { __BUZZ_COMPOSER_TEXT_SNAPSHOTS__?: string[] }
    ).__BUZZ_COMPOSER_TEXT_SNAPSHOTS__ = snapshots;
  });
  const avatar = composer.getByTestId(`composer-address-lock-${AGENT_A}`);
  const initialPulseVersion = Number(
    await avatar.getAttribute("data-pulse-version"),
  );
  await input.type("hello");
  await input.evaluate((element) => {
    const snapshots = (
      window as typeof window & { __BUZZ_COMPOSER_TEXT_SNAPSHOTS__?: string[] }
    ).__BUZZ_COMPOSER_TEXT_SNAPSHOTS__;
    snapshots?.splice(0, snapshots.length, element.textContent ?? "");
  });
  await input.press("Enter");

  await expect(input).toHaveText("@Morgarita ", { timeout: 500 });
  await expect
    .poll(() =>
      page.evaluate(
        () =>
          (
            window as typeof window & {
              __BUZZ_COMPOSER_TEXT_SNAPSHOTS__?: string[];
            }
          ).__BUZZ_COMPOSER_TEXT_SNAPSHOTS__ ?? [],
      ),
    )
    .not.toContain("");
  await expect(avatar).toHaveAttribute(
    "data-pulse-version",
    String(initialPulseVersion),
    { timeout: 500 },
  );
  await expect(
    composer.getByRole("button", { name: "Manage automatic agent mentions" }),
  ).toBeVisible();
  await expect(input).toBeFocused();
  await expect(composer.getByTestId("mention-autocomplete")).toHaveCount(0);

  await expect
    .poll(() => readOutgoingMentionPubkeys(page, "@Morgarita hello"))
    .toContain(AGENT_A);
  await expect(input).toHaveText("@Morgarita ");

  const sentRow = page
    .getByTestId("message-row")
    .filter({ hasText: "hello" })
    .last();
  const addressPrefix = sentRow.locator(
    "[data-mention].agent-mention-highlight",
    { hasText: "Morgarita" },
  );
  await expect(addressPrefix).toBeVisible();
  await expect(addressPrefix).toHaveText("Morgarita");

  await input.type("follow up");
  await input.press("Enter");
  const inlineMentionRow = page
    .getByTestId("message-row")
    .filter({ hasText: "follow up" })
    .last();
  await expect(
    inlineMentionRow.locator("[data-mention].agent-mention-highlight", {
      hasText: "Morgarita",
    }),
  ).toHaveCount(1);
});

test("a failed always-mentioned send shakes the composer avatar without replaying its selection animation", async ({
  page,
}) => {
  await installAudienceFixtures(page, {
    sendMessageDelayMs: 500,
    sendMessageErrors: ["simulated send failure"],
  });
  await openThread(page);

  const composer = threadComposer(page);
  await automaticallyMention(composer, "Morgarita");
  const input = composer.getByTestId("message-input");
  const avatar = composer.getByTestId(`composer-address-lock-${AGENT_A}`);
  const initialPulseVersion = Number(
    await avatar.getAttribute("data-pulse-version"),
  );
  await expect(avatar).toHaveAttribute("data-shake-version", "0");

  await input.type("please retry");
  await input.press("Enter");

  await expect(avatar).toHaveAttribute(
    "data-pulse-version",
    String(initialPulseVersion),
    { timeout: 500 },
  );
  await expect(input).toHaveText("@Morgarita please retry");
  await expect(avatar).toHaveAttribute("data-shake-version", "1");
});

test("a manual mention persists when automatic mentions are enabled", async ({
  page,
}) => {
  await keepMentionedAgentsPinned(page);
  await installAudienceFixtures(page, { sendMessageDelayMs: 1_500 });
  await openGeneral(page);

  const composer = channelComposer(page);
  const input = composer.getByTestId("message-input");
  await input.fill("@Mor");
  await expect(composer.getByTestId("mention-autocomplete")).toBeVisible();
  await input.press("Tab");
  await expect(input).toHaveText("@Morgarita ");
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toBeVisible();

  const autoPinConfirmation = page.getByTestId(
    "composer-auto-pin-confirmation",
  );
  await expect(autoPinConfirmation).toContainText(
    "Morgarita will be mentioned automatically",
  );
  await expect(autoPinConfirmation).not.toContainText(
    "Future messages in this channel will include this agent.",
  );
  await expect(autoPinConfirmation).toHaveAttribute("data-side", "right");
  await expect(autoPinConfirmation.locator("span")).toHaveCSS(
    "white-space",
    "nowrap",
  );
  await expect(
    page
      .locator("[data-sonner-toast]")
      .filter({ hasText: "Morgarita will be mentioned automatically" }),
  ).toHaveCount(0);
  const addressControlBox = await composer
    .getByTestId("composer-address-locks")
    .locator("..")
    .boundingBox();
  const confirmationBox = await autoPinConfirmation.boundingBox();
  expect(addressControlBox).not.toBeNull();
  expect(confirmationBox).not.toBeNull();
  if (!addressControlBox || !confirmationBox) {
    throw new Error("Automatic mention confirmation is not laid out");
  }
  expect(confirmationBox.x).toBeGreaterThan(
    addressControlBox.x + addressControlBox.width,
  );
  const turnOffAction = autoPinConfirmation.getByRole("button", {
    name: "Turn off",
  });
  await expect(turnOffAction).toHaveRole("button");
  await expect(turnOffAction).toHaveText("Turn off");

  await input.press("Escape");
  await expect(autoPinConfirmation).toHaveCount(0);

  await input.type("hello");
  await input.press("Enter");

  await expect(input).toHaveText("@Morgarita ", { timeout: 2_500 });
  await expect(input.locator("[data-placeholder]")).toHaveCount(0);
  await expect(input).toBeFocused();
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toBeVisible({ timeout: 2_500 });
  await expect(autoPinConfirmation).toHaveCount(0);
  await expect
    .poll(() => readOutgoingMentionPubkeys(page, "@Morgarita hello"))
    .toContain(AGENT_A);

  await input.fill("follow up");
  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toHaveCount(0);
  await input.press("Enter");
  await expect
    .poll(() => readOutgoingMentionPubkeys(page, "follow up"))
    .not.toContain(AGENT_A);
});

test("the auto-pin popover can turn off automatic agent mentions", async ({
  page,
}) => {
  await keepMentionedAgentsPinned(page);
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  const input = composer.getByTestId("message-input");
  await input.fill("@Mor");
  await expect(composer.getByTestId("mention-autocomplete")).toBeVisible();
  await input.press("Tab");
  await expect(input).toHaveText("@Morgarita ");

  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toBeVisible();
  const autoPinConfirmation = page.getByTestId(
    "composer-auto-pin-confirmation",
  );
  await expect(autoPinConfirmation).toContainText(
    "Morgarita will be mentioned automatically",
  );
  await autoPinConfirmation.getByRole("button", { name: "Turn off" }).click();

  await expect(
    composer.getByTestId(`composer-address-lock-${AGENT_A}`),
  ).toHaveCount(0);
  await expect(autoPinConfirmation).toHaveCount(0);

  await composer.getByTestId("message-insert-mention").click();
  await expect(composer.getByTestId("mention-autocomplete")).toBeVisible();
  await composer.getByTestId("mention-options-trigger").click();
  await expect(
    composer.getByTestId("mention-keep-agents-pinned-toggle"),
  ).toHaveAttribute("data-state", "unchecked");

  await input.press("Escape");
  await expect(composer.getByTestId("mention-autocomplete")).toHaveCount(0);
});

test("channel automatic mentions carry into threads and stay synchronized", async ({
  page,
}) => {
  await installAudienceFixtures(page);
  await openGeneral(page);
  await automaticallyMention(channelComposer(page), "Morgarita");

  await openThread(page);
  const channelAutomaticMention = channelComposer(page).getByTestId(
    `composer-address-lock-${AGENT_A}`,
  );
  const threadAutomaticMention = threadComposer(page).getByTestId(
    `composer-address-lock-${AGENT_A}`,
  );
  await expect(channelAutomaticMention).toBeVisible();
  await expect(threadAutomaticMention).toBeVisible();

  await threadComposer(page)
    .getByTestId(`composer-address-lock-remove-${AGENT_A}`)
    .click();
  await expect(threadAutomaticMention).toHaveCount(0);
  await expect(channelAutomaticMention).toHaveCount(0);
});

test("reduced motion removes addressed agents without spatial animation", async ({
  page,
}) => {
  await page.emulateMedia({ reducedMotion: "reduce" });
  await keepMentionedAgentsPinned(page);
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  const input = composer.getByTestId("message-input");
  await input.fill("@Mor");
  await expect(composer.getByTestId("mention-autocomplete")).toBeVisible();
  await input.press("Tab");
  const removeButton = composer.getByTestId(
    `composer-address-lock-remove-${AGENT_A}`,
  );
  await expect(removeButton).toBeVisible();
  await expect(removeButton).toHaveAttribute("style", /opacity: 1/);
  await expect(removeButton).toHaveCSS("transform", "none");

  await removeButton.click();
  await expect(input).toHaveText("@Morgarita ");
  await expect(removeButton).toHaveCount(0);
});

for (const theme of ["buzz", "buzz-dark"]) {
  test(`captures the mention-button placement in ${theme}`, async ({
    page,
  }) => {
    await seedTheme(page, theme);
    await installAudienceFixtures(page);
    await openThread(page);
    const overlay = threadComposer(page);
    const composer = overlay.getByTestId("message-composer");
    await automaticallyMention(overlay, "Morgarita");
    await automaticallyMention(overlay, "Vogue");
    await overlay.getByTestId("message-input").focus();
    await waitForAnimations(page);
    await composer.screenshot({ path: `${SHOTS}/${theme}-mention-button.png` });
  });
}

test("the mention-button placement fits the narrow composer", async ({
  page,
}) => {
  await page.setViewportSize({ width: 700, height: 760 });
  await installAudienceFixtures(page);
  await openThread(page);
  const overlay = threadComposer(page);
  const composer = overlay.getByTestId("message-composer");
  await automaticallyMention(overlay, "Morgarita");
  await automaticallyMention(overlay, "Vogue");
  await expect(overlay.getByTestId("composer-address-locks")).toBeVisible();
  await expect(
    overlay.getByRole("button", { name: "Manage automatic agent mentions" }),
  ).toBeVisible();
  await waitForAnimations(page);
  await composer.screenshot({ path: `${SHOTS}/narrow-mention-button.png` });
});

test("captures the lightweight auto-pin popover", async ({ page }) => {
  await seedTheme(page, "buzz-dark");
  await installAudienceFixtures(page);
  await openGeneral(page);

  const composer = channelComposer(page);
  const input = composer.getByTestId("message-input");
  await input.fill("draft text");
  await pressPrimaryShift(page, "M");
  await expect(input).toHaveText("@alice draft text");

  const addressControl = composer
    .getByTestId("composer-address-locks")
    .locator("..");
  const confirmation = page.getByTestId("composer-auto-pin-confirmation");
  await expect(confirmation).toContainText(
    "alice will be mentioned automatically",
  );
  await waitForAnimations(page);

  const addressBox = await addressControl.boundingBox();
  const confirmationBox = await confirmation.boundingBox();
  expect(addressBox).not.toBeNull();
  expect(confirmationBox).not.toBeNull();
  if (!addressBox || !confirmationBox) {
    throw new Error("Popover is not laid out");
  }

  const left = addressBox.x - 14;
  const top = Math.min(addressBox.y, confirmationBox.y) - 14;
  const right = confirmationBox.x + confirmationBox.width + 14;
  const bottom =
    Math.max(
      addressBox.y + addressBox.height,
      confirmationBox.y + confirmationBox.height,
    ) + 14;
  await page.screenshot({
    path: `${SHOTS}/auto-pin-popover-dark.png`,
    clip: { x: left, y: top, width: right - left, height: bottom - top },
  });
});