// Port 3203 - Settings modal mobile tests
import { describe, it, expect, beforeAll, afterAll, beforeEach, afterEach } from 'vitest';
import type { Page, BrowserContext } from 'playwright';
import { PORTS, SELECTORS, KEYBOARD, STORAGE_KEYS, BODY_CLASSES, WAIT } from './helpers/constants.js';
import { createTestServer, stopTestServer } from './helpers/server.js';
import { createDevicePage, closeAllBrowsers } from './helpers/browser.js';
import { showKeyboard, hideKeyboard } from './helpers/keyboard-sim.js';
import { assertVisible, assertHidden, getCSSProperty, getCSSNumericValue } from './helpers/assertions.js';
import { DEVICE_REGISTRY, REPRESENTATIVE_DEVICES } from './devices.js';
import type { WebServer } from '../src/web/server.js';

const PORT = PORTS.SETTINGS;
const BASE_URL = `http://localhost:${PORT}`;

describe('Settings Modal', () => {
  let server: WebServer;

  beforeAll(async () => {
    server = await createTestServer(PORT);
  });

  afterAll(async () => {
    await stopTestServer(server);
    await closeAllBrowsers();
  });

  // ── Mobile-Specific Behavior ──────────────────────────────────────────────

  describe('Mobile-Specific Behavior', () => {
    let page: Page;
    let context: BrowserContext;
    const device = REPRESENTATIVE_DEVICES['standard-phone'];

    beforeEach(async () => {
      const result = await createDevicePage(device, BASE_URL, 'chromium');
      page = result.page;
      context = result.context;
    });

    afterEach(async () => {
      await context.close();
    });

    it('uses codeman-app-settings-mobile localStorage key', async () => {
      const key = await page.evaluate(() => {
        return (window as any).app?.getSettingsStorageKey?.() ?? null;
      });
      // If the function exists, it should return the mobile key
      if (key !== null) {
        expect(key).toBe(STORAGE_KEYS.SETTINGS_MOBILE);
      } else {
        // Verify by checking what key is used when saving settings
        await page.evaluate(() => {
          localStorage.setItem('codeman-app-settings-mobile', JSON.stringify({ testFlag: true }));
        });
        const stored = await page.evaluate(() => {
          return localStorage.getItem('codeman-app-settings-mobile');
        });
        expect(stored).toContain('testFlag');
      }
    });

    it('mobile defaults: all panels hidden, subagent tracking OFF, ralph OFF', async () => {
      const defaults = await page.evaluate(() => {
        const fn = (window as any).app?.getDefaultSettings;
        if (fn) return fn.call((window as any).app);
        return null;
      });

      if (defaults !== null) {
        expect(defaults.showFontControls).toBe(false);
        expect(defaults.showSystemStats).toBe(false);
        expect(defaults.showTokenCount).toBe(false);
        expect(defaults.showCost).toBe(false);
        expect(defaults.showMonitor).toBe(false);
        expect(defaults.showProjectInsights).toBe(false);
        expect(defaults.showFileBrowser).toBe(false);
        expect(defaults.showSubagents).toBe(false);
        expect(defaults.subagentTrackingEnabled).toBe(false);
        expect(defaults.ralphTrackerEnabled).toBe(false);
      }
    });

    it('settings gear button visible in toolbar on phones', async () => {
      await assertVisible(page, SELECTORS.SETTINGS_MOBILE);
    });

    it('settings gear button is inside toolbar area', async () => {
      const gearBox = await page.locator(SELECTORS.SETTINGS_MOBILE).boundingBox();
      const toolbarBox = await page.locator(SELECTORS.TOOLBAR).boundingBox();

      if (gearBox && toolbarBox) {
        // Gear button should be within toolbar's vertical range
        expect(gearBox.y).toBeGreaterThanOrEqual(toolbarBox.y - 5);
        expect(gearBox.y + gearBox.height).toBeLessThanOrEqual(toolbarBox.y + toolbarBox.height + 5);
      }
    });
  });

  // ── Full-Screen Modal ─────────────────────────────────────────────────────

  describe('Full-Screen Modal', () => {
    let page: Page;
    let context: BrowserContext;
    const device = REPRESENTATIVE_DEVICES['standard-phone'];

    beforeEach(async () => {
      const result = await createDevicePage(device, BASE_URL, 'chromium');
      page = result.page;
      context = result.context;
    });

    afterEach(async () => {
      await context.close();
    });

    async function openSettingsModal(): Promise<void> {
      // Try clicking the mobile settings button
      const btn = page.locator(SELECTORS.SETTINGS_MOBILE);
      if (await btn.isVisible()) {
        await btn.click();
        await page.waitForTimeout(500);
      } else {
        // Fallback: trigger via JS
        await page.evaluate(() => {
          const fn = (window as any).app?.openAppSettings;
          if (fn) fn.call((window as any).app);
          // Also try directly showing the modal
          const modal = document.querySelector('#appSettingsModal') as HTMLElement;
          if (modal) modal.style.display = 'flex';
        });
        await page.waitForTimeout(500);
      }
    }

    it('modal takes full width on mobile', async () => {
      await openSettingsModal();
      const modalContent = page.locator(SELECTORS.SETTINGS_MODAL_CONTENT).first();
      if (await modalContent.isVisible()) {
        const box = await modalContent.boundingBox();
        const viewport = page.viewportSize()!;
        // Full width = very close to viewport width
        expect(box!.width).toBeGreaterThanOrEqual(viewport.width - 2);
      }
    });

    it('modal takes full height on mobile', async () => {
      await openSettingsModal();
      const modalContent = page.locator(SELECTORS.SETTINGS_MODAL_CONTENT).first();
      if (await modalContent.isVisible()) {
        const box = await modalContent.boundingBox();
        const viewport = page.viewportSize()!;
        expect(box!.height).toBeGreaterThanOrEqual(viewport.height - 2);
      }
    });

    it('modal has no border-radius on mobile (flat edges)', async () => {
      await openSettingsModal();
      const modalContent = page.locator(SELECTORS.SETTINGS_MODAL_CONTENT).first();
      if (await modalContent.isVisible()) {
        const radius = await getCSSProperty(page, SELECTORS.SETTINGS_MODAL_CONTENT, 'border-radius');
        const numericRadius = parseFloat(radius);
        expect(numericRadius).toBeLessThanOrEqual(1); // 0 or essentially 0
      }
    });

    it('modal tabs are horizontally scrollable', async () => {
      await openSettingsModal();
      const modalTabs = page.locator(SELECTORS.SETTINGS_MODAL_TABS).first();
      if (await modalTabs.isVisible()) {
        // Use first() since multiple modal-tabs elements exist
        const flexWrap = await page.evaluate((sel) => {
          const el = document.querySelector(sel);
          return el ? getComputedStyle(el).flexWrap : '';
        }, SELECTORS.SETTINGS_MODAL_TABS);
        const overflowX = await page.evaluate((sel) => {
          const el = document.querySelector(sel);
          return el ? getComputedStyle(el).overflowX : '';
        }, SELECTORS.SETTINGS_MODAL_TABS);
        expect(flexWrap).toBe('nowrap');
        expect(overflowX).toBe('auto');
      }
    });

    it('modal body adjusts height when keyboard visible', async () => {
      await openSettingsModal();
      const modalBody = page.locator(SELECTORS.SETTINGS_MODAL_BODY).first();
      if (await modalBody.isVisible()) {
        // Show keyboard via DOM (safest for modal context)
        await showKeyboard(page, KEYBOARD.TYPICAL_IOS_HEIGHT, { preferredLayer: 'dom' });
        await page.waitForTimeout(300);

        const maxHeight = await getCSSProperty(page, SELECTORS.SETTINGS_MODAL_BODY, 'max-height');
        // When keyboard is visible, modal body should be constrained
        // The CSS rule is max-height: 40vh
        if (maxHeight.includes('vh') || parseFloat(maxHeight) < device.viewport.height * 0.5) {
          expect(true).toBe(true); // Constrained
        }

        await hideKeyboard(page, { preferredLayer: 'dom' });
      }
    });
  });

  // ── Settings Toggles ──────────────────────────────────────────────────────

  describe('Settings Toggles', () => {
    let page: Page;
    let context: BrowserContext;
    const device = REPRESENTATIVE_DEVICES['standard-phone'];

    beforeEach(async () => {
      const result = await createDevicePage(device, BASE_URL, 'chromium');
      page = result.page;
      context = result.context;

      // Clear settings before each test
      await page.evaluate((key) => localStorage.removeItem(key), STORAGE_KEYS.SETTINGS_MOBILE);
    });

    afterEach(async () => {
      await context.close();
    });

    async function openSettingsAndToggle(settingId: string): Promise<boolean> {
      // Open settings modal
      const btn = page.locator(SELECTORS.SETTINGS_MOBILE);
      if (await btn.isVisible()) {
        await btn.click();
        await page.waitForTimeout(500);
      }

      // Find and toggle the setting
      const toggle = page.locator(`#${settingId}`);
      if (await toggle.isVisible()) {
        const wasCheked = await toggle.isChecked();
        await toggle.click();
        await page.waitForTimeout(200);
        return !wasCheked;
      }
      return false;
    }

    async function getStoredSettings(): Promise<Record<string, unknown> | null> {
      return page.evaluate((key) => {
        const raw = localStorage.getItem(key);
        return raw ? JSON.parse(raw) : null;
      }, STORAGE_KEYS.SETTINGS_MOBILE);
    }

    it('font controls toggle changes and persists', async () => {
      await openSettingsAndToggle('showFontControls');
      const settings = await getStoredSettings();
      if (settings) {
        expect(settings).toHaveProperty('showFontControls');
      }
    });

    it('subagent tracking toggle changes and persists', async () => {
      await openSettingsAndToggle('subagentTrackingEnabled');
      const settings = await getStoredSettings();
      if (settings) {
        expect(settings).toHaveProperty('subagentTrackingEnabled');
      }
    });

    it('ralph tracker toggle changes and persists', async () => {
      await openSettingsAndToggle('ralphTrackerEnabled');
      const settings = await getStoredSettings();
      if (settings) {
        expect(settings).toHaveProperty('ralphTrackerEnabled');
      }
    });

    it('image watcher toggle changes and persists', async () => {
      await openSettingsAndToggle('imageWatcherEnabled');
      const settings = await getStoredSettings();
      if (settings) {
        expect(settings).toHaveProperty('imageWatcherEnabled');
      }
    });

    it('tall tabs toggle changes and persists', async () => {
      await openSettingsAndToggle('tallTabs');
      const settings = await getStoredSettings();
      if (settings) {
        expect(settings).toHaveProperty('tallTabs');
      }
    });
  });

  // ── Persistence Roundtrip ─────────────────────────────────────────────────

  describe('Persistence Roundtrip', () => {
    const device = REPRESENTATIVE_DEVICES['standard-phone'];

    it('settings survive page reload', async () => {
      const { page, context } = await createDevicePage(device, BASE_URL, 'chromium');

      try {
        // Store a test setting
        await page.evaluate((key) => {
          localStorage.setItem(
            key,
            JSON.stringify({
              showFontControls: true,
              showMonitor: true,
              subagentTrackingEnabled: true,
            })
          );
        }, STORAGE_KEYS.SETTINGS_MOBILE);

        // Reload page
        await page.reload({ waitUntil: 'domcontentloaded' });
        await page.waitForTimeout(WAIT.PAGE_SETTLE);

        // Verify settings persisted
        const settings = await page.evaluate((key) => {
          const raw = localStorage.getItem(key);
          return raw ? JSON.parse(raw) : null;
        }, STORAGE_KEYS.SETTINGS_MOBILE);

        expect(settings).not.toBeNull();
        expect(settings?.showFontControls).toBe(true);
        expect(settings?.showMonitor).toBe(true);
        expect(settings?.subagentTrackingEnabled).toBe(true);
      } finally {
        await context.close();
      }
    });

    it('mobile notification prefs stored separately from desktop settings', async () => {
      const { page, context } = await createDevicePage(device, BASE_URL, 'chromium');

      try {
        // Store both mobile and desktop settings
        await page.evaluate(
          ({ mobileKey, desktopKey, notifKey }) => {
            localStorage.setItem(mobileKey, JSON.stringify({ showFontControls: false }));
            localStorage.setItem(desktopKey, JSON.stringify({ showFontControls: true }));
            localStorage.setItem(notifKey, JSON.stringify({ mobileNotif: true }));
          },
          {
            mobileKey: STORAGE_KEYS.SETTINGS_MOBILE,
            desktopKey: STORAGE_KEYS.SETTINGS_DESKTOP,
            notifKey: STORAGE_KEYS.NOTIFICATION_PREFS_MOBILE,
          }
        );

        // Verify they are independent
        const mobile = await page.evaluate(
          (key) => JSON.parse(localStorage.getItem(key) || '{}'),
          STORAGE_KEYS.SETTINGS_MOBILE
        );
        const desktop = await page.evaluate(
          (key) => JSON.parse(localStorage.getItem(key) || '{}'),
          STORAGE_KEYS.SETTINGS_DESKTOP
        );
        const notif = await page.evaluate(
          (key) => JSON.parse(localStorage.getItem(key) || '{}'),
          STORAGE_KEYS.NOTIFICATION_PREFS_MOBILE
        );

        expect(mobile.showFontControls).toBe(false);
        expect(desktop.showFontControls).toBe(true);
        expect(notif.mobileNotif).toBe(true);
      } finally {
        await context.close();
      }
    });
  });

  // ── Tablet vs Desktop Settings ────────────────────────────────────────────

  describe('Tablet vs Desktop Settings', () => {
    it('tablet uses desktop settings key', async () => {
      const device = REPRESENTATIVE_DEVICES['standard-tablet'];
      const { page, context } = await createDevicePage(device, BASE_URL, 'chromium');

      try {
        const key = await page.evaluate(() => {
          return (window as any).app?.getSettingsStorageKey?.() ?? null;
        });

        // Tablets (>= 430px) should NOT use mobile settings key
        if (key !== null) {
          expect(key).toBe(STORAGE_KEYS.SETTINGS_DESKTOP);
        }
      } finally {
        await context.close();
      }
    });

    it('settings gear button not in toolbar on desktop', async () => {
      const device = REPRESENTATIVE_DEVICES['large-tablet'];
      const { page, context } = await createDevicePage(device, BASE_URL, 'chromium');

      try {
        await assertHidden(page, SELECTORS.SETTINGS_MOBILE);
      } finally {
        await context.close();
      }
    });

    it('keeps handheld settings when a foldable unfolds past the desktop breakpoint', async () => {
      const device = DEVICE_REGISTRY.find((entry) => entry.name === 'OPPO Find N5 (unfolded)')!;
      const { page, context } = await createDevicePage(device, BASE_URL, 'chromium');

      try {
        // Seed the preferences while folded, exactly as a phone user does.
        await page.setViewportSize({ width: 412, height: 915 });
        await page.evaluate((key) => {
          localStorage.setItem(
            key,
            JSON.stringify({
              showResponseViewer: true,
              extendedKeyboardBar: true,
            })
          );
        }, STORAGE_KEYS.SETTINGS_MOBILE);
        await page.reload({ waitUntil: WAIT.DOM_CONTENT_LOADED });
        await page.waitForTimeout(WAIT.SSE_CONNECT);

        // Unfolding can reload Android WebView. The viewport now uses desktop
        // layout, but the physical device and its preferences have not changed.
        await page.setViewportSize(device.viewport);
        await page.reload({ waitUntil: WAIT.DOM_CONTENT_LOADED });
        await page.waitForTimeout(WAIT.SSE_CONNECT);

        const state = await page.evaluate(() => ({
          deviceType: (window as any).MobileDetection.getDeviceType(),
          handheld: (window as any).MobileDetection.isHandheldDevice(),
          storageKey: (window as any).app.getSettingsStorageKey(),
          responseViewerVisible: !document
            .querySelector('.btn-response-viewer-header')
            ?.classList.contains('btn-response-viewer-header--hidden'),
          keyboardExtended: Boolean(document.querySelector('.keyboard-accessory-bar [data-action="arrow-left"]')),
        }));

        expect(state.deviceType).toBe('desktop');
        expect(state.handheld).toBe(true);
        expect(state.storageKey).toBe(STORAGE_KEYS.SETTINGS_MOBILE);
        expect(state.responseViewerVisible).toBe(true);
        expect(state.keyboardExtended).toBe(true);

        await showKeyboard(page, KEYBOARD.TYPICAL_IOS_HEIGHT);
        await assertVisible(page, '.keyboard-accessory-bar');
      } finally {
        await context.close();
      }
    });
  });
});