import { test, expect, type Page } from '@playwright/test';
import { createServer, type ViteDevServer } from 'vite';
import { resolve } from 'node:path';

let server: ViteDevServer;
let baseUrl: string;
test.use({ headless: true, channel: process.env.MAKELORE_LAYOUT_BROWSER_CHANNEL, video: 'off' });

// Exercise actual navigation controls and persisted layout state without
// starting Electron or connecting to an account or any cloud service.
test.beforeAll(async () => {
  const entry = resolve('tests/e2e/__cloud-agent-navigation-layout-harness.tsx');
  server = await createServer({
    configFile: false,
    cacheDir: 'node_modules/.vite-cloud-agent-navigation-layout',
    resolve: { alias: { '@': resolve('src') } },
    esbuild: { jsx: 'automatic' },
    server: { host: '127.0.0.1', port: 0 },
    plugins: [{
      name: 'isolated-cloud-agent-navigation-layout', enforce: 'pre',
      resolveId(id) { if (id === '/__cloud-agent-navigation-layout-harness.tsx') return entry; },
      load(id) {
        if (id === entry) return `
          import { createRoot } from 'react-dom/client';
          import { MemoryRouter, Route, Routes, useLocation } from 'react-router-dom';
          import { TitleBar } from '/src/components/layout/TitleBar.tsx';
          import { useSettingsStore } from '/src/stores/settings.ts';
          import '/src/styles/globals.css';
          function AgentFrame() {
            const collapsed = useSettingsStore(state => state.sidebarCollapsed);
            const location = useLocation();
            return <div className="flex h-screen min-w-0 flex-col">
              <TitleBar integrated showModuleReturn pageTitle="我的智能体" />
              <div className="flex min-h-0 flex-1">
                {!collapsed && <aside aria-label="智能体侧栏" className="w-64 shrink-0" />}
                <main className="min-w-0 flex-1"><output data-testid="fixture-location">{location.pathname}</output></main>
              </div>
            </div>;
          }
          createRoot(document.getElementById('root')).render(<MemoryRouter initialEntries={['/cloud-agents?view=mine']}>
            <Routes><Route path="/cloud-agents" element={<AgentFrame />} /><Route path="/module-select" element={<main>首页模块卡片</main>} /></Routes>
          </MemoryRouter>);
        `;
        if (id.endsWith('/src/stores/coding-workspace.ts')) return 'export function useCodingWorkspaceStore(select) { return select({ activeProject: null }); }';
        if (id.endsWith('/src/stores/user-sync.ts')) return 'export const useUserSyncStore = { getState: () => ({ pushPreferences: async () => undefined }) };';
      },
      configureServer(vite) {
        vite.middlewares.use((req, res, next) => {
          if (req.url !== '/' && !req.url?.startsWith('/?')) return next();
          res.setHeader('Content-Type', 'text/html');
          res.end('<!doctype html><html><head><meta charset="utf-8"></head><body><div id="root"></div><script type="module" src="/__cloud-agent-navigation-layout-harness.tsx"></script></body></html>');
        });
      },
    }],
  });
  await server.listen();
  baseUrl = server.resolvedUrls!.local[0];
});
test.afterAll(async () => { await server?.close(); });

async function expectNavigationRow(page: Page, width: number) {
  const back = page.getByRole('button', { name: '返回首页', exact: true });
  const toggle = page.getByTestId('titlebar-sidebar-toggle');
  await expect(back).toHaveCount(1);
  await expect(back).toBeVisible();
  await expect(toggle).toBeVisible();
  const a = (await back.boundingBox())!;
  const b = (await toggle.boundingBox())!;
  expect(Math.abs((a.y + a.height / 2) - (b.y + b.height / 2))).toBeLessThanOrEqual(1);
  expect(a.x + a.width).toBeLessThanOrEqual(b.x);
  for (const box of [a, b]) {
    expect(box.x).toBeGreaterThanOrEqual(0);
    expect(box.x + box.width).toBeLessThanOrEqual(width);
    expect(box.y).toBeGreaterThanOrEqual(0);
    expect(box.width).toBeGreaterThanOrEqual(32);
    expect(box.height).toBeGreaterThanOrEqual(32);
  }
  return b;
}

for (const platform of ['darwin', 'win32', 'linux']) {
  for (const width of [375, 1024]) {
    test(`${platform} Agent return and sidebar toggle share one usable row at ${width}px`, async ({ page }) => {
      const pageErrors: string[] = [];
      page.on('pageerror', error => pageErrors.push(error.message));
      await page.setViewportSize({ width, height: 760 });
      await page.addInitScript(platform => {
        Object.defineProperty(window, 'electron', { value: { platform, ipcRenderer: {
          invoke: async (channel: string) => {
            if (channel === 'window:isMaximized' || channel === 'window:isFullScreen') return false;
            throw new Error('Unexpected fixture IPC ' + channel);
          },
          on: () => () => {},
        } } });
      }, platform);
      await page.goto(baseUrl);
      await expect(page.getByTestId('fixture-location')).toHaveText('/cloud-agents');
      const expandedToggle = await expectNavigationRow(page, width);
      await expect(page.getByTestId('titlebar-sidebar-toggle')).toHaveAttribute('aria-label', '折叠侧栏');

      // 375px stresses application controls; Windows' native desktop frame has
      // a larger minimum width, so validate its chrome separation at 1024px.
      if (platform !== 'win32' || width === 1024) {
        const logo = (await page.getByTestId('titlebar-logo').boundingBox())!;
        expect(expandedToggle.x + expandedToggle.width).toBeLessThanOrEqual(logo.x);
      }
      await page.getByTestId('titlebar-sidebar-toggle').click();
      await expect(page.getByRole('complementary', { name: '智能体侧栏' })).toHaveCount(0);
      await expect(page.getByTestId('titlebar-sidebar-toggle')).toHaveAttribute('aria-label', '展开侧栏');
      const collapsedToggle = await expectNavigationRow(page, width);
      const collapsedLogo = (await page.getByTestId('titlebar-logo').boundingBox())!;
      expect(collapsedToggle.x + collapsedToggle.width).toBeLessThanOrEqual(collapsedLogo.x);

      await page.getByTestId('titlebar-sidebar-toggle').click();
      await expect(page.getByRole('complementary', { name: '智能体侧栏' })).toBeVisible();
      await expectNavigationRow(page, width);
      await page.getByTestId('titlebar-sidebar-toggle').click();
      await page.getByRole('button', { name: '返回首页', exact: true }).click();
      await expect(page.getByText('首页模块卡片')).toBeVisible();
      expect(pageErrors).toEqual([]);
    });
  }
}