const { By, until } = require('selenium-webdriver');
const RegistrationPage = require('../../support/pages/RegistrationPage');
const LoginPage = require('../../support/pages/LoginPage');
const DashboardPage = require('../../support/pages/DashboardPage');
const TripPage = require('../../support/pages/TripPage');

describe('Plannable Items Feature Test', () => {
  let driver;
  let registrationPage;
  let loginPage;
  let dashboardPage;
  let tripPage;
  let testUser;
  let testTrip;

  beforeAll(async () => {
    driver = await global.createDriver();
    registrationPage = new RegistrationPage(driver);
    loginPage = new LoginPage(driver);
    dashboardPage = new DashboardPage(driver);
    tripPage = new TripPage(driver);

    // Create unique test data
    const timestamp = Date.now();
    testUser = {
      name: `Plannable Test User ${timestamp}`,
      email: `plannable.test.${timestamp}@example.com`,
      password: 'PlanTest123!'
    };

    testTrip = {
      name: `Test Trip with Plannables ${timestamp}`,
      description: 'A trip to test plannable items feature',
      startDate: '2025-02-01',
      endDate: '2025-02-05'
    };
  });

  afterAll(async () => {
    global.plannableTestsInitialized = false;
    await global.quitDriver(driver);
  });

  beforeEach(async () => {
    // For individual test runs or when starting fresh, ensure we have proper setup
    if (!global.plannableTestsInitialized) {
      // Clear storage and cookies
      await Promise.all([
        driver.manage().deleteAllCookies().catch(() => {}),
        driver.executeScript('try { localStorage.clear(); sessionStorage.clear(); } catch(e) {}')
      ]);

      // Navigate to base URL
      await driver.get(process.env.APP_URL || 'http://localhost:5173');
      await driver.wait(until.urlContains('/'), 5000);

      // Register new user if not already done
      try {
        await driver.wait(until.elementLocated(By.css('.auth-toggle button:last-child')), 2000);
        await driver.findElement(By.css('.auth-toggle button:last-child')).click();

        await registrationPage.register(testUser.name, testUser.email, testUser.password);

        // Wait for dashboard to load after registration
        await driver.wait(until.elementLocated(By.className('dashboard')), 10000);
        await driver.wait(until.elementLocated(By.css('.add-trip-card')), 10000);

        // Create a new trip if not already created
        const existingTrips = await driver.findElements(By.xpath(`//h3[contains(text(), "${testTrip.name}")]`));
        if (existingTrips.length === 0) {
          const addTripCard = await driver.findElement(By.css('.add-trip-card'));
          await addTripCard.click();
          await driver.wait(until.elementLocated(By.css('.trip-modal')), 10000);

          await tripPage.fillTripForm(testTrip);
          await tripPage.submitTripForm();

          // Wait for trip to be created
          await driver.wait(until.elementLocated(By.xpath(`//h3[contains(text(), "${testTrip.name}")]`)), 10000);
        }

        global.plannableTestsInitialized = true;
      } catch (e) {
        // If already logged in, just verify we're on dashboard
        try {
          await driver.wait(until.elementLocated(By.className('dashboard')), 2000);
          global.plannableTestsInitialized = true;
        } catch (e2) {
          console.log('Failed to initialize test environment:', e2.message);
        }
      }
    }
  });

  // Helper function to navigate to trip detail page
  async function navigateToTripDetail() {
    const currentUrl = await driver.getCurrentUrl();

    // Check if we're already on the trip detail page
    if (global.tripDetailUrl && currentUrl === global.tripDetailUrl) {
      // Already on the right page, just wait for plannables list
      await driver.wait(until.elementLocated(By.className('plannables-list')), 10000);
      await driver.sleep(500);
      return;
    }

    // Need to navigate
    if (global.tripDetailUrl) {
      await driver.get(global.tripDetailUrl);
      await driver.sleep(1000);
    } else {
      await driver.wait(until.elementLocated(By.className('dashboard')), 10000);
      const tripCard = await driver.findElement(By.xpath(`//h3[contains(text(), "${testTrip.name}")]/ancestor::div[contains(@class, 'trip-card')]`));
      await tripCard.click();
      await driver.wait(until.urlContains('/trip/'), 10000);
      global.tripDetailUrl = await driver.getCurrentUrl();
    }
    await driver.wait(until.elementLocated(By.className('plannables-list')), 10000);
    // Ensure no modals are open
    await driver.sleep(500);
  }

  // Helper function to wait for modal to close
  async function waitForModalClose() {
    await driver.sleep(1500);
    await driver.wait(async () => {
      const overlays = await driver.findElements(By.css('.plannable-form-overlay, .confirm-dialog, .modal'));
      for (const overlay of overlays) {
        try {
          if (await overlay.isDisplayed()) {
            return false;
          }
        } catch (e) {
          // Element might be stale, continue
        }
      }
      return true;
    }, 10000);
  }

  describe('Plannable Items Management', () => {
    it('should create a trip with auto-generated calendar slots', async () => {
      // Navigate to trip detail page
      await navigateToTripDetail();

      // Verify trip detail page elements
      await driver.wait(until.elementLocated(By.xpath(`//h1[contains(text(), "${testTrip.name}")]`)), 10000);

      // Check that trip detail page is working (calendar slots functionality verified via API tests)
      const tripTitle = await driver.findElement(By.xpath(`//h1[contains(text(), "${testTrip.name}")]`));
      expect(await tripTitle.isDisplayed()).toBe(true);
    });

    it('should add a plannable item', async () => {
      // Navigate to trip detail page
      await navigateToTripDetail();

      // Click Add Item button
      await driver.wait(until.elementLocated(By.xpath('//button[contains(text(), "Add Item")]')), 10000);
      const addItemButton = await driver.findElement(By.xpath('//button[contains(text(), "Add Item")]'));
      await addItemButton.click();

      // Wait for form modal to appear
      await driver.wait(until.elementLocated(By.className('plannable-form-modal')), 5000);

      // Fill in the plannable item form
      const itemData = {
        name: 'Eiffel Tower Visit',
        type: 'attraction',
        address: 'Champ de Mars, 5 Avenue Anatole France, 75007 Paris',
        notes: 'Book tickets in advance for sunset visit'
      };

      await driver.findElement(By.name('name')).sendKeys(itemData.name);

      // Select type
      const typeSelect = await driver.findElement(By.name('type'));
      await typeSelect.findElement(By.xpath(`//option[@value="${itemData.type}"]`)).click();

      await driver.findElement(By.name('address')).sendKeys(itemData.address);
      await driver.findElement(By.name('notes')).sendKeys(itemData.notes);

      // Assign to Day 2
      const slotSelect = await driver.findElement(By.name('calendar_slot_id'));
      const day2Option = await slotSelect.findElement(By.xpath('//option[contains(text(), "Day 2")]'));
      await day2Option.click();

      // Submit the form
      const submitButton = await driver.findElement(By.xpath('//button[contains(text(), "Add Item")]'));
      // Scroll to ensure button is visible and clickable
      await driver.executeScript("arguments[0].scrollIntoView(true);", submitButton);
      await driver.sleep(500);
      // Use JavaScript click to avoid interception
      await driver.executeScript("arguments[0].click();", submitButton);

      // Wait for modal to close
      await waitForModalClose();

      // Verify the item appears in Day 2 section
      await driver.wait(until.elementLocated(By.xpath(`//h4[contains(text(), "${itemData.name}")]`)), 10000);
      const itemElement = await driver.findElement(By.xpath(`//h4[contains(text(), "${itemData.name}")]`));
      expect(await itemElement.isDisplayed()).toBe(true);
    });

    it('should edit a plannable item', async () => {
      // Navigate to trip detail page
      await navigateToTripDetail();

      // Wait for the item to appear (it should have been created in previous test)
      await driver.wait(until.elementLocated(By.xpath('//h4[contains(text(), "Eiffel Tower Visit")]')), 10000);

      // Find the item and hover to show actions
      const itemElement = await driver.findElement(By.xpath('//h4[contains(text(), "Eiffel Tower Visit")]/ancestor::div[contains(@class, "plannable-item")]'));
      await driver.actions().move({ origin: itemElement }).perform();

      // Click edit button
      await driver.wait(until.elementLocated(By.className('btn-edit')), 5000);
      const editButton = await driver.findElement(By.className('btn-edit'));
      await editButton.click();

      // Wait for form modal to appear
      await driver.wait(until.elementLocated(By.className('plannable-form-modal')), 5000);

      // Update the item name
      const nameInput = await driver.findElement(By.name('name'));
      await nameInput.clear();
      await nameInput.sendKeys('Eiffel Tower Evening Visit');

      // Update notes
      const notesInput = await driver.findElement(By.name('notes'));
      await notesInput.clear();
      await notesInput.sendKeys('Sunset visit confirmed for 7 PM');

      // Submit the form
      const updateButton = await driver.findElement(By.xpath('//button[contains(text(), "Update Item")]'));
      await driver.executeScript("arguments[0].scrollIntoView(true);", updateButton);
      await driver.sleep(300);
      await driver.executeScript("arguments[0].click();", updateButton);

      // Wait for modal to close
      await waitForModalClose();

      // Verify the item was updated
      await driver.wait(until.elementLocated(By.xpath('//h4[contains(text(), "Eiffel Tower Evening Visit")]')), 10000);
      const updatedItem = await driver.findElement(By.xpath('//h4[contains(text(), "Eiffel Tower Evening Visit")]'));
      expect(await updatedItem.isDisplayed()).toBe(true);
    });

    it('should delete a plannable item', async () => {
      // Navigate to trip detail page
      await navigateToTripDetail();

      // Wait for the item to appear (it should have been edited in previous test)
      await driver.wait(until.elementLocated(By.xpath('//h4[contains(text(), "Eiffel Tower Evening Visit")]')), 10000);

      // Find the item and hover to show actions
      const itemElement = await driver.findElement(By.xpath('//h4[contains(text(), "Eiffel Tower Evening Visit")]/ancestor::div[contains(@class, "plannable-item")]'));
      await driver.actions().move({ origin: itemElement }).perform();

      // Click delete button
      await driver.wait(until.elementLocated(By.className('btn-delete')), 5000);
      const deleteButton = await driver.findElement(By.className('btn-delete'));
      await deleteButton.click();

      // Wait for and accept confirmation dialog (custom modal, not browser alert)
      await driver.wait(until.elementLocated(By.css('.confirm-dialog, .modal')), 5000);
      await driver.sleep(500);
      const confirmButton = await driver.findElement(By.xpath('//button[contains(text(), "Delete") or contains(@class, "confirm")]'));
      await driver.executeScript("arguments[0].click();", confirmButton);

      // Wait for modal to close
      await waitForModalClose();

      // Verify item was removed
      const items = await driver.findElements(By.xpath('//h4[contains(text(), "Eiffel Tower Evening Visit")]'));
      expect(items.length).toBe(0);
    });

    it('should handle multiple plannable items of different types', async () => {
      // Navigate to trip detail page
      await navigateToTripDetail();

      // Test data for different item types
      const itemsToAdd = [
        {
          name: 'Hotel Le Meurice',
          type: 'hotel',
          address: '228 Rue de Rivoli, 75001 Paris',
          notes: 'Check-in at 3 PM'
        },
        {
          name: 'Le Jules Verne Restaurant',
          type: 'restaurant',
          address: 'Eiffel Tower, Avenue Gustave Eiffel, 75007 Paris',
          notes: 'Reservation at 8 PM'
        },
        {
          name: 'Louvre Museum',
          type: 'attraction',
          address: 'Rue de Rivoli, 75001 Paris',
          notes: 'Morning visit'
        }
      ];

      // Add each item
      for (const item of itemsToAdd) {
        // Click Add Item button
        const addItemButton = await driver.findElement(By.xpath('//button[contains(text(), "Add Item")]'));
        await addItemButton.click();

        // Wait for form modal to appear
        await driver.wait(until.elementLocated(By.className('plannable-form-modal')), 5000);

        // Fill in the form
        await driver.findElement(By.name('name')).sendKeys(item.name);

        const typeSelect = await driver.findElement(By.name('type'));
        await typeSelect.findElement(By.xpath(`//option[@value="${item.type}"]`)).click();

        await driver.findElement(By.name('address')).sendKeys(item.address);
        await driver.findElement(By.name('notes')).sendKeys(item.notes);

        // Submit the form - use JavaScript click to avoid interception
        const submitButton = await driver.findElement(By.xpath('//button[contains(text(), "Add Item")]'));
        await driver.executeScript("arguments[0].scrollIntoView(true);", submitButton);
        await driver.sleep(500);
        await driver.executeScript("arguments[0].click();", submitButton);

        // Wait for modal to close
        await waitForModalClose();

        // Verify the item appears
        await driver.wait(until.elementLocated(By.xpath(`//h4[contains(text(), "${item.name}")]`)), 10000);
      }

      // Verify all items are displayed
      for (const item of itemsToAdd) {
        const itemElement = await driver.findElement(By.xpath(`//h4[contains(text(), "${item.name}")]`));
        expect(await itemElement.isDisplayed()).toBe(true);
      }

      // Verify items show correct type icons
      const hotelItem = await driver.findElement(By.xpath('//h4[contains(text(), "Hotel Le Meurice")]/preceding-sibling::div[contains(@class, "item-icon")]'));
      const hotelIcon = await hotelItem.getText();
      expect(hotelIcon).toContain('🏨');

      const restaurantItem = await driver.findElement(By.xpath('//h4[contains(text(), "Le Jules Verne")]/preceding-sibling::div[contains(@class, "item-icon")]'));
      const restaurantIcon = await restaurantItem.getText();
      expect(restaurantIcon).toContain('🍽️');

      const attractionItem = await driver.findElement(By.xpath('//h4[contains(text(), "Louvre Museum")]/preceding-sibling::div[contains(@class, "item-icon")]'));
      const attractionIcon = await attractionItem.getText();
      expect(attractionIcon).toContain('🎯');
    });
  });
});