import { test, expect } from '@chromatic-com/playwright';
import { loginViaAPI, CONFIG, navigateTo } from './helpers';

/**
 * UPLOAD - Track upload flow tests
 * Selectors based on UploadModal.tsx, UploadModalDropzone.tsx, UploadModalMetadataForm.tsx
 */

// Create a minimal valid MP3 buffer for testing
function createTestMP3Buffer(): Buffer {
  return Buffer.from(
    '4944330300000000000a544954320000000500000054657374fffb90440000000000000000000000000000000000000000',
    'hex',
  );
}

test.describe('UPLOAD - Track upload flow @critical', () => {
  test.beforeEach(async ({ page }) => {
    // Login as creator (has upload permissions)
    await loginViaAPI(page, CONFIG.users.creator.email, CONFIG.users.creator.password);
  });

  test('should complete full upload flow: file, metadata, publish, visible in library @critical', async ({ page }) => {
    await navigateTo(page, '/library');

    // Find and click upload button
    const uploadBtn = page.getByRole('button', { name: /upload|uploader/i }).first();
    const uploadVisible = await uploadBtn.isVisible({ timeout: 10_000 }).catch(() => false);
    if (!uploadVisible) {
      console.log('  Upload button not found — skipping');
      return;
    }
    await uploadBtn.click();
    await page.waitForTimeout(500);

    // Wait for upload modal/dialog
    const dialog = page.locator('[role="dialog"]').first();
    const dialogVisible = await dialog.isVisible({ timeout: 5000 }).catch(() => false);
    if (!dialogVisible) {
      console.log('  Upload dialog did not appear — skipping');
      return;
    }

    // Set file via the hidden input inside the dropzone
    const fileInput = dialog.locator('input[type="file"]').first();
    const fileInputExists = await fileInput.count();
    if (fileInputExists === 0) {
      console.log('  File input not found in upload dialog — skipping');
      return;
    }
    const uniqueTitle = `E2E Upload ${Date.now()}`;

    await fileInput.setInputFiles({
      name: 'test-track.mp3',
      mimeType: 'audio/mpeg',
      buffer: createTestMP3Buffer(),
    });

    // Wait for file to be processed (dropzone disappears, metadata form appears)
    await page.waitForTimeout(1000);

    // Fill metadata
    const titleInput = dialog.locator('#title').or(dialog.locator('input[name="title"]'));
    if (!await titleInput.isVisible({ timeout: 5000 }).catch(() => false)) {
      console.log('  Title input not visible after file upload — skipping');
      return;
    }
    await titleInput.fill(uniqueTitle);

    const artistInput = dialog.locator('#artist').or(dialog.locator('input[name="artist"]'));
    if (await artistInput.isVisible().catch(() => false)) {
      await artistInput.fill('E2E Test Artist');
    }

    const genreInput = dialog.locator('#genre').or(dialog.locator('input[name="genre"]'));
    if (await genreInput.isVisible().catch(() => false)) {
      await genreInput.fill('Electronic');
    }

    // Submit the form
    const submitBtn = dialog.locator('button[type="submit"]')
      .or(dialog.locator('button[form="upload-track-form"]'))
      .or(dialog.getByRole('button', { name: /uploader/i }));
    if (!await submitBtn.isVisible({ timeout: 3000 }).catch(() => false)) {
      console.log('  Submit button not visible — skipping');
      return;
    }
    await submitBtn.click();

    // Wait for upload completion (success message or dialog closes)
    const success = dialog.locator('text=/upload|success|succ/i').first();
    const dialogClosed = page.waitForSelector('[role="dialog"]', { state: 'hidden', timeout: 60_000 }).catch(() => null);

    await Promise.race([
      success.waitFor({ state: 'visible', timeout: 60_000 }).catch(() => {}),
      dialogClosed,
    ]);

    // Verify track appears in library after reload
    await navigateTo(page, '/library');
    await page.waitForTimeout(2000);

    // Search for the uploaded track
    const trackInLibrary = page.locator(`text=${uniqueTitle}`).first();
    const isVisible = await trackInLibrary.isVisible({ timeout: 10_000 }).catch(() => false);
    if (isVisible) {
      console.log('  Track visible in library');
    } else {
      console.warn('  Track not yet visible (may still be processing)');
    }
  });

  test('should show error for invalid file format', async ({ page }) => {
    await navigateTo(page, '/library');

    const uploadBtn = page.getByRole('button', { name: /upload|uploader/i }).first();
    const uploadVisible = await uploadBtn.isVisible({ timeout: 10_000 }).catch(() => false);
    if (!uploadVisible) {
      console.log('  Upload button not found — skipping');
      return;
    }
    await uploadBtn.click();
    await page.waitForTimeout(500);

    const dialog = page.locator('[role="dialog"]').first();
    const dialogVisible = await dialog.isVisible({ timeout: 5000 }).catch(() => false);
    if (!dialogVisible) {
      console.log('  Upload dialog did not appear — skipping');
      return;
    }

    const fileInput = dialog.locator('input[type="file"]').first();
    if (await fileInput.count() === 0) {
      console.log('  File input not found — skipping');
      return;
    }

    // Try uploading a text file
    await fileInput.setInputFiles({
      name: 'invalid.txt',
      mimeType: 'text/plain',
      buffer: Buffer.from('This is not an audio file'),
    });

    await page.waitForTimeout(1000);

    // Either: file is rejected (dropzone still visible), or error message appears
    const errorMsg = dialog.locator('text=/format|invalid|non supporté|rejected/i').first();
    const dropzoneStillVisible = dialog.locator('text=/glissez|drag|drop/i').first();

    const hasError = await errorMsg.isVisible({ timeout: 3000 }).catch(() => false);
    const dropzoneBack = await dropzoneStillVisible.isVisible({ timeout: 3000 }).catch(() => false);

    expect(hasError || dropzoneBack).toBeTruthy();
  });

  test('should show validation error when submitting without file', async ({ page }) => {
    await navigateTo(page, '/library');

    const uploadBtn = page.getByRole('button', { name: /upload|uploader/i }).first();
    const uploadVisible = await uploadBtn.isVisible({ timeout: 10_000 }).catch(() => false);
    if (!uploadVisible) {
      console.log('  Upload button not found — skipping');
      return;
    }
    await uploadBtn.click();
    await page.waitForTimeout(500);

    const dialog = page.locator('[role="dialog"]').first();
    const dialogVisible = await dialog.isVisible({ timeout: 5000 }).catch(() => false);
    if (!dialogVisible) {
      console.log('  Upload dialog did not appear — skipping');
      return;
    }

    // The submit button should be disabled when no file is selected
    const submitBtn = dialog.locator('button[type="submit"]')
      .or(dialog.locator('button[form="upload-track-form"]'))
      .or(dialog.getByRole('button', { name: /uploader/i }));

    if (await submitBtn.isVisible({ timeout: 3000 }).catch(() => false)) {
      const isDisabled = await submitBtn.isDisabled();
      expect(isDisabled).toBeTruthy();
    }
  });

  test('should close modal with Escape or close button', async ({ page }) => {
    await navigateTo(page, '/library');

    const uploadBtn = page.getByRole('button', { name: /upload|uploader/i }).first();
    const uploadVisible = await uploadBtn.isVisible({ timeout: 10_000 }).catch(() => false);
    if (!uploadVisible) {
      console.log('  Upload button not found — skipping');
      return;
    }
    await uploadBtn.click();
    await page.waitForTimeout(500);

    const dialog = page.locator('[role="dialog"]').first();
    const dialogVisible = await dialog.isVisible({ timeout: 5000 }).catch(() => false);
    if (!dialogVisible) {
      console.log('  Upload dialog did not appear — skipping');
      return;
    }

    // Close via button
    const closeBtn = dialog.getByRole('button', { name: /close|cancel|fermer|annuler/i }).first();
    if (await closeBtn.isVisible().catch(() => false)) {
      await closeBtn.click();
      await expect(dialog).not.toBeVisible({ timeout: 3000 });
    } else {
      // Close via Escape
      await page.keyboard.press('Escape');
      await expect(dialog).not.toBeVisible({ timeout: 3000 });
    }
  });
});