/**
 * Board Background Persistence End-to-End Test
 *
 * Tests that board background settings are properly saved and loaded when switching projects.
 * This verifies that:
 * 1. Background settings are saved to .automaker/settings.json
 * 2. Settings are loaded when switching back to a project
 * 3. Background image, opacity, and other settings are correctly restored
 * 4. Settings persist across app restarts (new page loads)
 *
 * This test prevents regression of the board background loading bug where
 * settings were saved but never loaded when switching projects.
 */

import { test, expect } from '@playwright/test';
import * as fs from 'fs';
import * as path from 'path';
import {
  createTempDirPath,
  cleanupTempDir,
  authenticateForTests,
  handleLoginScreenIfPresent,
} from '../utils';

// Create unique temp dirs for this test run
const TEST_TEMP_DIR = createTempDirPath('board-bg-test');

test.describe('Board Background Persistence', () => {
  test.beforeAll(async () => {
    // Create test temp directory
    if (!fs.existsSync(TEST_TEMP_DIR)) {
      fs.mkdirSync(TEST_TEMP_DIR, { recursive: true });
    }
  });

  test.afterAll(async () => {
    // Cleanup temp directory
    cleanupTempDir(TEST_TEMP_DIR);
  });

  test('should load board background settings when switching projects', async ({ page }) => {
    const projectAName = `project-a-${Date.now()}`;
    const projectBName = `project-b-${Date.now()}`;
    const projectAPath = path.resolve(TEST_TEMP_DIR, projectAName);
    const projectBPath = path.resolve(TEST_TEMP_DIR, projectBName);
    const projectAId = `project-a-${Date.now()}`;
    const projectBId = `project-b-${Date.now()}`;

    // Create both project directories
    fs.mkdirSync(projectAPath, { recursive: true });
    fs.mkdirSync(projectBPath, { recursive: true });

    // Create basic files for both projects
    for (const [name, projectPath] of [
      [projectAName, projectAPath],
      [projectBName, projectBPath],
    ]) {
      fs.writeFileSync(
        path.join(projectPath, 'package.json'),
        JSON.stringify({ name, version: '1.0.0' }, null, 2)
      );
      fs.writeFileSync(path.join(projectPath, 'README.md'), `# ${name}\n`);
    }

    // Create .automaker directory for project A with background settings
    const automakerDirA = path.join(projectAPath, '.automaker');
    fs.mkdirSync(automakerDirA, { recursive: true });
    fs.mkdirSync(path.join(automakerDirA, 'board'), { recursive: true });
    fs.mkdirSync(path.join(automakerDirA, 'features'), { recursive: true });
    fs.mkdirSync(path.join(automakerDirA, 'context'), { recursive: true });

    // Copy actual background image from test fixtures
    const backgroundPath = path.join(automakerDirA, 'board', 'background.jpg');
    const testImagePath = path.join(__dirname, '..', 'img', 'background.jpg');
    fs.copyFileSync(testImagePath, backgroundPath);

    // Create settings.json with board background configuration
    const settingsPath = path.join(automakerDirA, 'settings.json');
    const backgroundSettings = {
      version: 1,
      boardBackground: {
        imagePath: backgroundPath,
        cardOpacity: 85,
        columnOpacity: 60,
        columnBorderEnabled: true,
        cardGlassmorphism: true,
        cardBorderEnabled: false,
        cardBorderOpacity: 50,
        hideScrollbar: true,
        imageVersion: Date.now(),
      },
    };
    fs.writeFileSync(settingsPath, JSON.stringify(backgroundSettings, null, 2));

    // Create minimal .automaker directory for project B (no background)
    const automakerDirB = path.join(projectBPath, '.automaker');
    fs.mkdirSync(automakerDirB, { recursive: true });
    fs.mkdirSync(path.join(automakerDirB, 'features'), { recursive: true });
    fs.mkdirSync(path.join(automakerDirB, 'context'), { recursive: true });
    fs.writeFileSync(
      path.join(automakerDirB, 'settings.json'),
      JSON.stringify({ version: 1 }, null, 2)
    );

    // Set up project A as the current project directly (skip welcome view).
    // The auto-open logic in __root.tsx always opens the most recent project when
    // navigating to /, so we cannot reliably show the welcome view with projects.
    const projectA = {
      id: projectAId,
      name: projectAName,
      path: projectAPath,
      lastOpened: new Date().toISOString(),
    };
    const projectB = {
      id: projectBId,
      name: projectBName,
      path: projectBPath,
      lastOpened: new Date(Date.now() - 86400000).toISOString(),
    };

    await page.addInitScript(
      ({
        projects,
        versions,
      }: {
        projects: Array<{ id: string; name: string; path: string; lastOpened: string }>;
        versions: { APP_STORE: number; SETUP_STORE: number };
      }) => {
        const appState = {
          state: {
            projects: projects,
            currentProject: projects[0],
            currentView: 'board',
            theme: 'dark',
            sidebarOpen: true,
            skipSandboxWarning: true,
            apiKeys: { anthropic: '', google: '' },
            chatSessions: [],
            chatHistoryOpen: false,
            maxConcurrency: 3,
            boardBackgroundByProject: {},
          },
          version: versions.APP_STORE,
        };
        localStorage.setItem('automaker-storage', JSON.stringify(appState));

        const setupState = {
          state: {
            isFirstRun: false,
            setupComplete: true,
            skipClaudeSetup: false,
          },
          version: versions.SETUP_STORE,
        };
        localStorage.setItem('automaker-setup', JSON.stringify(setupState));

        const settingsCache = {
          setupComplete: true,
          isFirstRun: false,
          projects: projects.map((p) => ({
            id: p.id,
            name: p.name,
            path: p.path,
            lastOpened: p.lastOpened,
          })),
          currentProjectId: projects[0].id,
          theme: 'dark',
          sidebarOpen: true,
          sidebarStyle: 'unified',
          maxConcurrency: 3,
        };
        localStorage.setItem('automaker-settings-cache', JSON.stringify(settingsCache));

        // Force unified sidebar (project-dropdown-trigger exists only in unified mode)
        const uiCache = {
          state: {
            cachedProjectId: projects[0].id,
            cachedSidebarOpen: true,
            cachedSidebarStyle: 'unified',
            cachedWorktreePanelCollapsed: false,
            cachedCollapsedNavSections: {},
            cachedCurrentWorktreeByProject: {},
          },
          version: 2,
        };
        localStorage.setItem('automaker-ui-cache', JSON.stringify(uiCache));

        localStorage.setItem('automaker-disable-splash', 'true');
      },
      { projects: [projectA, projectB], versions: { APP_STORE: 2, SETUP_STORE: 1 } }
    );

    // Fast-track initializeProject API calls for test project paths.
    // initializeProject makes ~8 sequential HTTP calls (exists, stat, mkdir, etc.) that
    // can take 10+ seconds under parallel load, blocking setCurrentProject entirely.
    await page.route('**/api/fs/**', async (route) => {
      const body = route.request().postDataJSON?.() ?? {};
      const filePath = body?.filePath || body?.dirPath || '';
      if (filePath.startsWith(projectAPath) || filePath.startsWith(projectBPath)) {
        const url = route.request().url();
        if (url.includes('/api/fs/exists')) {
          await route.fulfill({
            status: 200,
            contentType: 'application/json',
            body: JSON.stringify({ success: true, exists: true }),
          });
        } else if (url.includes('/api/fs/stat')) {
          await route.fulfill({
            status: 200,
            contentType: 'application/json',
            body: JSON.stringify({
              success: true,
              stats: { isDirectory: true, isFile: false, size: 0, mtime: new Date().toISOString() },
            }),
          });
        } else if (url.includes('/api/fs/mkdir')) {
          await route.fulfill({
            status: 200,
            contentType: 'application/json',
            body: JSON.stringify({ success: true }),
          });
        } else if (url.includes('/api/fs/write')) {
          await route.fulfill({
            status: 200,
            contentType: 'application/json',
            body: JSON.stringify({ success: true }),
          });
        } else {
          await route.continue();
        }
      } else {
        await route.continue();
      }
    });

    // Also fast-track git init for test projects
    await page.route('**/api/worktree/init-git', async (route) => {
      const body = route.request().postDataJSON?.() ?? {};
      if (
        body?.projectPath?.startsWith(projectAPath) ||
        body?.projectPath?.startsWith(projectBPath)
      ) {
        await route.fulfill({
          status: 200,
          contentType: 'application/json',
          body: JSON.stringify({ success: true, result: { initialized: false } }),
        });
      } else {
        await route.continue();
      }
    });

    // Intercept settings API: inject test projects and track current project so that
    // when the app switches to project B (PUT), subsequent GETs return B instead of
    // overwriting back to A (which would prevent the dropdown from ever showing B).
    let effectiveCurrentProjectId = projectAId;
    let cachedSettingsJson: Record<string, unknown> | null = null;
    await page.route('**/api/settings/global', async (route) => {
      const method = route.request().method();
      if (method === 'PUT') {
        try {
          const body = route.request().postDataJSON();
          if (body?.currentProjectId === projectAId || body?.currentProjectId === projectBId) {
            effectiveCurrentProjectId = body.currentProjectId;
          }
        } catch {
          // ignore parse errors
        }
        await route.continue();
        return;
      }
      if (method !== 'GET') {
        await route.continue();
        return;
      }
      if (!cachedSettingsJson) {
        try {
          const response = await route.fetch();
          cachedSettingsJson = (await response.json()) as Record<string, unknown>;
        } catch {
          // route.fetch() can fail during navigation; fall through to continue
          await route.continue().catch(() => {});
          return;
        }
      }
      const json = JSON.parse(JSON.stringify(cachedSettingsJson)) as Record<string, unknown>;
      if (!json.settings || typeof json.settings !== 'object') {
        json.settings = {};
      }
      const settings = json.settings as Record<string, unknown>;
      settings.currentProjectId = effectiveCurrentProjectId;
      settings.projects = [projectA, projectB];
      settings.sidebarOpen = true;
      settings.sidebarStyle = 'unified';
      await route
        .fulfill({
          status: 200,
          contentType: 'application/json',
          body: JSON.stringify(json),
        })
        .catch(() => {});
    });

    // Track API calls to /api/settings/project to verify settings are being loaded
    const settingsApiCalls: Array<{ url: string; method: string; body: string }> = [];
    page.on('request', (request) => {
      if (request.url().includes('/api/settings/project') && request.method() === 'POST') {
        settingsApiCalls.push({
          url: request.url(),
          method: request.method(),
          body: request.postData() || '',
        });
      }
    });

    await authenticateForTests(page);

    // Navigate to the board directly with project A
    await page.goto('/board');
    await page.waitForLoadState('load');
    await handleLoginScreenIfPresent(page);

    // Wait for board view
    await expect(page.locator('[data-testid="board-view"]')).toBeVisible({ timeout: 15000 });

    // Wait for settings to be loaded (useProjectSettingsLoader hook)
    // Poll for the board view to be fully rendered and stable
    const boardView = page.locator('[data-testid="board-view"]');
    await expect(boardView).toBeVisible({ timeout: 15000 });

    // Wait for settings API calls to complete (at least one settings call should have been made)
    await expect(async () => {
      expect(settingsApiCalls.length).toBeGreaterThan(0);
    }).toPass({ timeout: 10000 });

    // Ensure sidebar is expanded before interacting with project selector
    const expandSidebarButton = page.locator('button:has-text("Expand sidebar")');
    if (await expandSidebarButton.isVisible()) {
      await expandSidebarButton.click();
      await page
        .locator('button:has-text("Collapse sidebar")')
        .waitFor({ state: 'visible', timeout: 5000 })
        .catch(() => {});
    }

    // Switch to project B (no background)
    // Use retry pattern: background re-renders (worktree loading, settings sync) can
    // swallow clicks or close the dropdown immediately after it opens.
    const projectSelector = page.locator('[data-testid="project-dropdown-trigger"]');
    await expect(async () => {
      await projectSelector.click();
      await expect(page.locator('[data-testid="project-dropdown-content"]')).toBeVisible({
        timeout: 2000,
      });
    }).toPass({ timeout: 10000 });

    const projectPickerB = page.locator(`[data-testid="project-item-${projectBId}"]`);
    await expect(projectPickerB).toBeVisible({ timeout: 5000 });

    // Update effectiveCurrentProjectId eagerly BEFORE clicking so any in-flight GET
    // responses return project B instead of overwriting the store back to A.
    effectiveCurrentProjectId = projectBId;
    await projectPickerB.click();

    // Wait for the project switch to take effect (dropdown trigger shows project B name).
    // With initializeProject API calls fast-tracked, setCurrentProject runs quickly
    // and the startTransition commits within a few seconds.
    await expect(
      page.locator('[data-testid="project-dropdown-trigger"]').getByText(projectBName)
    ).toBeVisible({ timeout: 15000 });

    // Ensure sidebar stays expanded after navigation (it may collapse when switching projects)
    const expandBtn = page.locator('button:has-text("Expand sidebar")');
    if (await expandBtn.isVisible()) {
      await expandBtn.click();
      await page
        .locator('button:has-text("Collapse sidebar")')
        .waitFor({ state: 'visible', timeout: 5000 })
        .catch(() => {});
    }

    // Switch back to project A. Settings polls can cause re-renders that detach dropdown
    // items mid-click, so we retry the entire open-and-click sequence with short timeouts.
    // Update effectiveCurrentProjectId eagerly to prevent polls from reverting the switch.
    effectiveCurrentProjectId = projectAId;
    const trigger = page.locator('[data-testid="project-dropdown-trigger"]');
    await expect(async () => {
      await trigger.click();
      await expect(page.locator('[data-testid="project-dropdown-content"]')).toBeVisible({
        timeout: 2000,
      });
      await page
        .locator(`[data-testid="project-item-${projectAId}"]`)
        .click({ force: true, timeout: 1000 });
    }).toPass({ timeout: 15000 });

    // Verify we're back on project A
    await expect(
      page.locator('[data-testid="project-dropdown-trigger"]').getByText(projectAName)
    ).toBeVisible({ timeout: 15000 });

    // Wait for settings to be re-loaded for project A
    const prevCallCount = settingsApiCalls.length;
    await expect(async () => {
      expect(settingsApiCalls.length).toBeGreaterThan(prevCallCount);
    })
      .toPass({ timeout: 10000 })
      .catch(() => {
        // Settings may be cached, which is fine
      });

    // Verify that the settings API was called for project A at least once (initial load).
    // Note: When switching back, the app may use cached settings and skip re-fetching.
    const projectASettingsCalls = settingsApiCalls.filter((call) =>
      call.body.includes(projectAPath)
    );

    // Debug: log all API calls if test fails
    if (projectASettingsCalls.length < 1) {
      console.log('Total settings API calls:', settingsApiCalls.length);
      console.log('API calls:', JSON.stringify(settingsApiCalls, null, 2));
      console.log('Looking for path:', projectAPath);
    }

    expect(projectASettingsCalls.length).toBeGreaterThanOrEqual(1);

    // Verify settings file still exists with correct data
    const loadedSettings = JSON.parse(fs.readFileSync(settingsPath, 'utf-8'));
    expect(loadedSettings.boardBackground).toBeDefined();
    expect(loadedSettings.boardBackground.imagePath).toBe(backgroundPath);
    expect(loadedSettings.boardBackground.cardOpacity).toBe(85);
    expect(loadedSettings.boardBackground.columnOpacity).toBe(60);
    expect(loadedSettings.boardBackground.hideScrollbar).toBe(true);

    // Clean up route handlers to avoid "route in flight" errors during teardown
    await page.unrouteAll({ behavior: 'ignoreErrors' });

    // The test passing means:
    // 1. The useProjectSettingsLoader hook is working
    // 2. Settings are loaded when switching projects
    // 3. The API call to /api/settings/project is made correctly
  });

  test('should load background settings on app restart', async ({ page }) => {
    const projectName = `restart-test-${Date.now()}`;
    const projectPath = path.join(TEST_TEMP_DIR, projectName);
    const projectId = `project-${Date.now()}`;

    // Create project directory
    fs.mkdirSync(projectPath, { recursive: true });
    fs.writeFileSync(
      path.join(projectPath, 'package.json'),
      JSON.stringify({ name: projectName, version: '1.0.0' }, null, 2)
    );

    // Create .automaker with background settings
    const automakerDir = path.join(projectPath, '.automaker');
    fs.mkdirSync(automakerDir, { recursive: true });
    fs.mkdirSync(path.join(automakerDir, 'board'), { recursive: true });
    fs.mkdirSync(path.join(automakerDir, 'features'), { recursive: true });
    fs.mkdirSync(path.join(automakerDir, 'context'), { recursive: true });

    // Copy actual background image from test fixtures
    const backgroundPath = path.join(automakerDir, 'board', 'background.jpg');
    const testImagePath = path.join(__dirname, '..', 'img', 'background.jpg');
    fs.copyFileSync(testImagePath, backgroundPath);

    const settingsPath = path.join(automakerDir, 'settings.json');
    fs.writeFileSync(
      settingsPath,
      JSON.stringify(
        {
          version: 1,
          boardBackground: {
            imagePath: backgroundPath,
            cardOpacity: 90,
            columnOpacity: 70,
            imageVersion: Date.now(),
          },
        },
        null,
        2
      )
    );

    // Set up with project as current using direct localStorage
    await page.addInitScript(
      ({ project }: { project: string[] }) => {
        const projectObj = {
          id: project[0],
          name: project[1],
          path: project[2],
          lastOpened: new Date().toISOString(),
        };

        const appState = {
          state: {
            projects: [projectObj],
            currentProject: projectObj,
            currentView: 'board',
            theme: 'dark',
            sidebarOpen: true,
            skipSandboxWarning: true,
            apiKeys: { anthropic: '', google: '' },
            chatSessions: [],
            chatHistoryOpen: false,
            maxConcurrency: 3,
            boardBackgroundByProject: {},
          },
          version: 2,
        };
        localStorage.setItem('automaker-storage', JSON.stringify(appState));

        // Setup complete - use correct key name
        const setupState = {
          state: {
            isFirstRun: false,
            setupComplete: true,
            skipClaudeSetup: false,
          },
          version: 1,
        };
        localStorage.setItem('automaker-setup', JSON.stringify(setupState));

        const settingsCache = {
          setupComplete: true,
          isFirstRun: false,
          projects: [
            {
              id: projectObj.id,
              name: projectObj.name,
              path: projectObj.path,
              lastOpened: projectObj.lastOpened,
            },
          ],
          currentProjectId: projectObj.id,
          theme: 'dark',
          sidebarOpen: true,
          maxConcurrency: 3,
        };
        localStorage.setItem('automaker-settings-cache', JSON.stringify(settingsCache));

        // Disable splash screen in tests
        localStorage.setItem('automaker-disable-splash', 'true');
      },
      { project: [projectId, projectName, projectPath] }
    );

    // Intercept settings API to use our test project instead of the E2E fixture.
    // Only intercept GET requests - let PUT requests pass through unmodified.
    await page.route('**/api/settings/global', async (route) => {
      if (route.request().method() !== 'GET') {
        await route.continue();
        return;
      }
      let response: Awaited<ReturnType<typeof route.fetch>>;
      try {
        response = await route.fetch();
      } catch {
        await route.continue();
        return;
      }
      if (!response.ok()) {
        await route.fulfill({ response });
        return;
      }
      const json = await response.json();
      // Override to use our test project
      if (json.settings) {
        json.settings.currentProjectId = projectId;
        json.settings.projects = [
          {
            id: projectId,
            name: projectName,
            path: projectPath,
            lastOpened: new Date().toISOString(),
          },
        ];
      }
      await route.fulfill({ response, json });
    });

    // Track API calls to /api/settings/project to verify settings are being loaded
    const settingsApiCalls: Array<{ url: string; method: string; body: string }> = [];
    page.on('request', (request) => {
      if (request.url().includes('/api/settings/project') && request.method() === 'POST') {
        settingsApiCalls.push({
          url: request.url(),
          method: request.method(),
          body: request.postData() || '',
        });
      }
    });

    await authenticateForTests(page);

    // Navigate to the app
    await page.goto('/');
    await page.waitForLoadState('load');
    await handleLoginScreenIfPresent(page);

    // Should go straight to board view (not welcome) since we have currentProject
    await expect(page.locator('[data-testid="board-view"]')).toBeVisible({ timeout: 15000 });

    // Wait for settings to load by checking API calls
    await expect(async () => {
      const calls = settingsApiCalls.filter((call) => call.body.includes(projectPath));
      expect(calls.length).toBeGreaterThanOrEqual(1);
    }).toPass({ timeout: 10000 });

    // Verify that the settings API was called for this project
    const projectSettingsCalls = settingsApiCalls.filter((call) => call.body.includes(projectPath));

    // Debug: log all API calls if test fails
    if (projectSettingsCalls.length < 1) {
      console.log('Total settings API calls:', settingsApiCalls.length);
      console.log('API calls:', JSON.stringify(settingsApiCalls, null, 2));
      console.log('Looking for path:', projectPath);
    }

    expect(projectSettingsCalls.length).toBeGreaterThanOrEqual(1);

    // Verify settings file exists with correct data
    const loadedSettings = JSON.parse(fs.readFileSync(settingsPath, 'utf-8'));
    expect(loadedSettings.boardBackground).toBeDefined();
    expect(loadedSettings.boardBackground.imagePath).toBe(backgroundPath);
    expect(loadedSettings.boardBackground.cardOpacity).toBe(90);
    expect(loadedSettings.boardBackground.columnOpacity).toBe(70);

    // Clean up route handlers to avoid "route in flight" errors during teardown
    await page.unrouteAll({ behavior: 'ignoreErrors' });

    // The test passing means:
    // 1. The useProjectSettingsLoader hook is working
    // 2. Settings are loaded when app starts with a currentProject
    // 3. The API call to /api/settings/project is made correctly
  });
});