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

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

const SHOTS = "test-results/buzz-theme";
const THEME_STORAGE_KEY = "buzz-theme";

/**
 * Seed the active theme into localStorage BEFORE the mock bridge installs so
 * ThemeProvider reads it on first mount (init scripts run in registration
 * order; React reads state on mount, which the bridge triggers).
 */
async function seedTheme(page: Page, theme: string) {
  await page.addInitScript(
    ({ key, value }) => {
      window.localStorage.setItem(key, value);
    },
    { key: THEME_STORAGE_KEY, value: theme },
  );
}

async function openChannel(page: Page) {
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await page.getByTestId("channel-general").click();
  await expect(page.getByTestId("chat-title")).toHaveText("general");
  await expect(page.getByTestId("app-sidebar")).toBeVisible();
}

test("buzz light sidebar gradient", async ({ page }) => {
  await seedTheme(page, "buzz");
  await installMockBridge(page);
  await openChannel(page);
  await waitForAnimations(page);
  await page
    .getByTestId("app-sidebar")
    .screenshot({ path: `${SHOTS}/01-buzz-light-sidebar.png` });
});

test("buzz dark sidebar gradient", async ({ page }) => {
  await seedTheme(page, "buzz-dark");
  await installMockBridge(page);
  await openChannel(page);
  await waitForAnimations(page);
  await page
    .getByTestId("app-sidebar")
    .screenshot({ path: `${SHOTS}/02-buzz-dark-sidebar.png` });
});

async function openAppearance(page: Page, mode: "system" | "light" | "dark") {
  // Settings renders at the AppShell level; open it via the profile card
  // button, then select the Appearance section.
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await page.getByTestId("open-settings").click();
  await page.getByTestId("profile-popover-settings").click();
  await page.getByTestId("settings-nav-appearance").click();
  const panel = page.getByTestId("settings-theme");
  await expect(panel).toBeVisible({ timeout: 10_000 });
  await page.getByTestId(`appearance-mode-${mode}`).click();
  await waitForAnimations(page);
  return panel;
}

test("appearance picker — system tab (Buzz follows OS)", async ({ page }) => {
  await seedTheme(page, "buzz");
  await installMockBridge(page);
  const panel = await openAppearance(page, "system");
  await panel.screenshot({ path: `${SHOTS}/03-picker-system.png` });
});

test("appearance picker — light tab (Buzz)", async ({ page }) => {
  await seedTheme(page, "buzz");
  await installMockBridge(page);
  const panel = await openAppearance(page, "light");
  await panel.screenshot({ path: `${SHOTS}/04-picker-light.png` });
});

test("appearance picker — dark tab (Buzz Dark)", async ({ page }) => {
  await seedTheme(page, "buzz-dark");
  await installMockBridge(page);
  const panel = await openAppearance(page, "dark");
  await panel.screenshot({ path: `${SHOTS}/05-picker-dark.png` });
});

test("settings nav uses Buzz active pill + hover (light)", async ({ page }) => {
  await seedTheme(page, "buzz");
  await installMockBridge(page);
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await page.getByTestId("open-settings").click();
  await page.getByTestId("profile-popover-settings").click();
  const sidebar = page.getByTestId("settings-sidebar");
  await expect(sidebar).toBeVisible({ timeout: 10_000 });
  // Appearance is the active section here; its nav row should carry the Buzz
  // white active pill (data-active=true), matching the Left Nav treatment.
  await page.getByTestId("settings-nav-appearance").click();
  const activeRow = page.getByTestId("settings-nav-appearance");
  await expect(activeRow).toHaveAttribute("data-active", "true");
  await waitForAnimations(page);
  await sidebar.screenshot({ path: `${SHOTS}/06-settings-nav-light.png` });
});

test("settings nav uses Buzz active pill + hover (dark)", async ({ page }) => {
  await seedTheme(page, "buzz-dark");
  await installMockBridge(page);
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await page.getByTestId("open-settings").click();
  await page.getByTestId("profile-popover-settings").click();
  const sidebar = page.getByTestId("settings-sidebar");
  await expect(sidebar).toBeVisible({ timeout: 10_000 });
  await page.getByTestId("settings-nav-appearance").click();
  await waitForAnimations(page);
  await sidebar.screenshot({ path: `${SHOTS}/07-settings-nav-dark.png` });
});

test("appearance hides accent picker under Buzz", async ({ page }) => {
  await seedTheme(page, "buzz");
  await installMockBridge(page);
  const panel = await openAppearance(page, "light");
  // The accent picker is hidden while a Buzz theme is active. Its neutral
  // swatch testid must not be present.
  await expect(page.getByTestId("accent-color-neutral")).toHaveCount(0);
  await panel.screenshot({ path: `${SHOTS}/08-appearance-no-accent.png` });
});

test("accent picker reveals/hides when toggling Buzz", async ({ page }) => {
  // Start on a non-Buzz theme so the accent picker is present, then select the
  // Buzz tile — the picker should animate out and unmount. Reselecting a
  // non-Buzz tile brings it back. Asserts the presence toggle (the motion
  // wrapper) works end to end.
  await seedTheme(page, "github-light");
  await installMockBridge(page);
  await openAppearance(page, "light");
  await expect(page.getByTestId("accent-color-neutral")).toBeVisible();

  // Switch to Buzz — picker should leave (allow the exit animation to settle).
  await page.getByTestId("theme-option-buzz").click();
  await expect(page.getByTestId("accent-color-neutral")).toHaveCount(0);

  // Back to a non-Buzz theme — picker returns.
  await page.getByTestId("theme-option-github-light").click();
  await expect(page.getByTestId("accent-color-neutral")).toBeVisible();
});