import { test, expect } from '@playwright/test';
import { LoginPage } from '../../page-objects/LoginPage.js';
import { InvoicesPage } from '../../page-objects/InvoicesPage.js';
import { testCredentials } from '../../fixtures/auth.js';
import { mockInvoices } from '../../fixtures/invoices.js';

test.describe('Invoices View', () => {
  let loginPage;
  let invoicesPage;

  test.beforeEach(async ({ page }) => {
    loginPage = new LoginPage(page);
    invoicesPage = new InvoicesPage(page);

    // Mock authentication
    await page.route('**/api/auth/login', async route => {
      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          access_token: 'mock_access_token',
          refresh_token: 'mock_refresh_token',
          user: { id: 1, username: 'testuser', full_name: 'Test User' }
        }),
      });
    });

    // Mock companies
    await page.route('**/api/companies', async route => {
      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify([
          { code: 'COMP1', name: 'Compania Test 1' }
        ]),
      });
    });

    // Mock invoices endpoint - FIX: Use query parameters instead of path parameter
    await page.route('**/api/invoices**', async route => {
      const url = route.request().url();
      const urlParams = new URL(url).searchParams;
      const partnerType = urlParams.get('partner_type') || 'CLIENTI';

      // Return different data based on partner_type
      const invoicesData = partnerType === 'CLIENTI'
        ? mockInvoices.filter(inv => inv.type === 'client')
        : mockInvoices.filter(inv => inv.type === 'supplier');

      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          invoices: invoicesData,
          total_count: invoicesData.length,
          filtered_count: invoicesData.length,
          total_amount: invoicesData.reduce((sum, inv) => sum + inv.totctva, 0),
          page: parseInt(urlParams.get('page') || '1'),
          page_size: parseInt(urlParams.get('page_size') || '50'),
          has_more: false
        }),
      });
    });

    // Login and navigate to invoices
    await loginPage.navigate();
    await loginPage.login(testCredentials.valid.username, testCredentials.valid.password);
    await page.waitForURL('/dashboard');
    await invoicesPage.navigate();
  });

  test('should display invoices page correctly', async ({ page: _page }) => {
    expect(await invoicesPage.isOnInvoicesPage()).toBe(true);
    
    const title = await invoicesPage.getPageTitle();
    expect(title).toContain('Facturi');
  });

  test('should show company selection when no company selected', async ({ page: _page }) => {
    await invoicesPage.waitForPageLoad();
    expect(await invoicesPage.isCompanySelectionVisible()).toBe(true);
    expect(await invoicesPage.isInvoicesTableVisible()).toBe(false);
  });

  test('should display invoices table after company selection', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    
    await page.waitForSelector(invoicesPage.invoicesTable, { timeout: 10000 });
    expect(await invoicesPage.isInvoicesTableVisible()).toBe(true);
  });

  test('should filter invoices by search term', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);
    
    // Search for specific invoice
    await invoicesPage.searchInvoices('INV001');
    await invoicesPage.waitForLoadingToFinish();
    
    const visibleRows = await invoicesPage.getVisibleInvoicesCount();
    expect(visibleRows).toBeGreaterThan(0);
    
    // Check that displayed invoices contain search term
    const firstRowData = await invoicesPage.getFirstInvoiceData();
    expect(firstRowData.number).toContain('INV001');
  });

  test('should filter invoices by status', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);
    
    // Filter by paid status
    await invoicesPage.filterByStatus('paid');
    await invoicesPage.waitForLoadingToFinish();
    
    const visibleRows = await invoicesPage.getVisibleInvoicesCount();
    expect(visibleRows).toBeGreaterThan(0);
  });

  test('should sort invoices by date', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);
    
    // Click date column header to sort
    await invoicesPage.sortByColumn('date');
    await invoicesPage.waitForLoadingToFinish();
    
    // Verify sorting worked
    const firstRowDate = await invoicesPage.getFirstInvoiceData();
    expect(firstRowDate.date).toBeTruthy();
  });

  test('should display invoice details when clicking on row', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);
    
    // Click on first invoice row
    await invoicesPage.clickFirstInvoiceRow();
    
    // Check if details panel or modal appears
    expect(await invoicesPage.isInvoiceDetailsVisible()).toBe(true);
  });

  test('should export invoices data', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);
    
    // Set up download handler
    const downloadPromise = page.waitForEvent('download');
    await invoicesPage.clickExportButton();
    
    const download = await downloadPromise;
    expect(download.suggestedFilename()).toContain('facturi');
  });

  test('should handle pagination correctly', async ({ page }) => {
    // Mock large dataset
    await page.route('**/api/invoices/COMP1*', async route => {
      const url = route.request().url();
      const urlParams = new URL(url).searchParams;
      const page_num = parseInt(urlParams.get('page') || '1');
      
      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          items: mockInvoices.slice((page_num - 1) * 10, page_num * 10),
          total: 25,
          page: page_num,
          size: 10,
          pages: 3
        }),
      });
    });

    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);
    
    // Check pagination controls appear
    expect(await invoicesPage.isPaginationVisible()).toBe(true);
    
    // Navigate to next page
    await invoicesPage.goToNextPage();
    await invoicesPage.waitForLoadingToFinish();
    
    // Verify page changed
    const currentPage = await invoicesPage.getCurrentPage();
    expect(currentPage).toBe(2);
  });

  test('should handle API errors gracefully', async ({ page }) => {
    // Mock API error
    await page.route('**/api/invoices/COMP1', async route => {
      await route.fulfill({
        status: 500,
        contentType: 'application/json',
        body: JSON.stringify({ detail: 'Internal server error' }),
      });
    });

    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    
    // Should show error message
    const errorToast = page.locator('.p-toast-message-error');
    if (await errorToast.isVisible()) {
      const errorText = await errorToast.textContent();
      expect(errorText.toLowerCase()).toContain('eroare');
    }
  });

  test('should refresh data when refresh button clicked', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);

    // Click refresh button
    await invoicesPage.clickRefreshButton();
    await invoicesPage.waitForLoadingToFinish();

    // Table should still be visible after refresh
    expect(await invoicesPage.isInvoicesTableVisible()).toBe(true);
  });

  // NEW TESTS for fixed issues

  test('should filter by invoice type (CLIENTI/FURNIZORI)', async ({ page }) => {
    let capturedPartnerType = null;

    // Intercept API requests to verify partner_type parameter
    await page.route('**/api/invoices**', async route => {
      const url = route.request().url();
      const urlParams = new URL(url).searchParams;
      capturedPartnerType = urlParams.get('partner_type');

      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          invoices: [],
          total_count: 0,
          filtered_count: 0,
          total_amount: 0,
          page: 1,
          page_size: 50,
          has_more: false
        }),
      });
    });

    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);

    // Select FURNIZORI from dropdown
    await page.locator('[placeholder="Tip factură"]').click();
    await page.locator('.p-dropdown-item').filter({ hasText: 'Furnizori' }).click();
    await page.waitForTimeout(1000); // Wait for API call

    // Verify partner_type parameter was sent correctly
    expect(capturedPartnerType).toBe('FURNIZORI');
  });

  test('should filter by cont (account number)', async ({ page }) => {
    let capturedCont = null;

    // Intercept API requests to verify cont parameter
    await page.route('**/api/invoices**', async route => {
      const url = route.request().url();
      const urlParams = new URL(url).searchParams;
      capturedCont = urlParams.get('cont');

      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          invoices: [],
          total_count: 0,
          filtered_count: 0,
          total_amount: 0,
          page: 1,
          page_size: 50,
          has_more: false
        }),
      });
    });

    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);

    // Enter cont filter
    await page.locator('[placeholder="Filtru cont (ex: 4111)"]').fill('4111');
    await page.waitForTimeout(1000); // Wait for debounced API call

    // Verify cont parameter was sent correctly
    expect(capturedCont).toBe('4111');
  });

  test('should use partner_name parameter for search', async ({ page }) => {
    let capturedPartnerName = null;
    let capturedSearchParam = null;

    // Intercept API requests to verify correct parameter name
    await page.route('**/api/invoices**', async route => {
      const url = route.request().url();
      const urlParams = new URL(url).searchParams;
      capturedPartnerName = urlParams.get('partner_name');
      capturedSearchParam = urlParams.get('search');

      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          invoices: [],
          total_count: 0,
          filtered_count: 0,
          total_amount: 0,
          page: 1,
          page_size: 50,
          has_more: false
        }),
      });
    });

    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);

    // Search for partner name
    await page.locator('[placeholder="Căutați după număr, partener..."]').fill('Test Partner');
    await page.waitForTimeout(1000); // Wait for debounced API call

    // Verify partner_name parameter was sent (not search)
    expect(capturedPartnerName).toBe('Test Partner');
    expect(capturedSearchParam).toBeNull();
  });

  test('should export XLSX with all filters applied', async ({ page }) => {
    let exportRequestParams = null;

    // Intercept export API request
    await page.route('**/api/invoices**', async route => {
      const url = route.request().url();
      const urlParams = new URL(url).searchParams;

      // Capture params if it's the export request (page_size = 999999)
      if (urlParams.get('page_size') === '999999') {
        exportRequestParams = {
          partner_type: urlParams.get('partner_type'),
          partner_name: urlParams.get('partner_name'),
          cont: urlParams.get('cont'),
          page_size: urlParams.get('page_size')
        };
      }

      await route.fulfill({
        status: 200,
        contentType: 'application/json',
        body: JSON.stringify({
          invoices: [
            {
              cont: '4111',
              nract: 'INV001',
              dataact: '2024-01-01',
              datascad: '2024-02-01',
              nume: 'Test Client',
              totctva: 1000,
              achitat: 500,
              soldfinal: 500
            }
          ],
          total_count: 1,
          filtered_count: 1,
          total_amount: 1000,
          page: 1,
          page_size: 999999,
          has_more: false
        }),
      });
    });

    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);

    // Apply filters before export
    await page.locator('[placeholder="Tip factură"]').click();
    await page.locator('.p-dropdown-item').filter({ hasText: 'Furnizori' }).click();
    await page.locator('[placeholder="Filtru cont (ex: 4111)"]').fill('4111');
    await page.waitForTimeout(500);

    // Click Excel export
    const downloadPromise = page.waitForEvent('download', { timeout: 10000 }).catch(() => null);
    await page.locator('button:has-text("Export Excel")').click();
    await page.waitForTimeout(2000); // Wait for export to complete

    // Verify export request included all filters
    expect(exportRequestParams).toBeTruthy();
    expect(exportRequestParams.partner_type).toBe('FURNIZORI');
    expect(exportRequestParams.cont).toBe('4111');
    expect(exportRequestParams.page_size).toBe('999999');

    // Download may or may not occur due to mock, but we verified the API call
    await downloadPromise;
  });

  test('should have hover effect on table rows', async ({ page }) => {
    await invoicesPage.waitForPageLoad();
    await invoicesPage.selectCompany('Compania Test 1');
    await page.waitForSelector(invoicesPage.invoicesTable);

    // Wait for table rows to load
    const firstRow = page.locator('.p-datatable-tbody tr').first();
    await firstRow.waitFor();

    // Get initial background color
    const initialBgColor = await firstRow.evaluate(el =>
      window.getComputedStyle(el).backgroundColor
    );

    // Hover over the row
    await firstRow.hover();
    await page.waitForTimeout(300); // Wait for transition

    // Get background color after hover
    const hoverBgColor = await firstRow.evaluate(el =>
      window.getComputedStyle(el).backgroundColor
    );

    // Background color should change on hover
    expect(hoverBgColor).not.toBe(initialBgColor);

    // Verify hover color is the expected blue (#e3f2fd = rgb(227, 242, 253))
    expect(hoverBgColor).toBe('rgb(227, 242, 253)');
  });
});