import { test, expect } from '@playwright/test';
import { registerAndLogin, textFile } from './helpers';

// every test runs as a fresh logged-in user, so the file list starts empty
// and tests never see each other's files (the list is per-user on the backend).
test.beforeEach(async ({ page }) => {
    await registerAndLogin(page);
    await page.goto('/');
});

test('a new user sees the empty state', async ({ page }) => {
    await expect(page.getByText('No files yet.')).toBeVisible();
});

test('uploading a file shows it in the list', async ({ page }) => {
    await page.locator('input[type="file"]').setInputFiles(textFile('hello.txt'));
    await expect(page.getByText('hello.txt')).toBeVisible();
});

test('downloading a file triggers a download', async ({ page }) => {
    await page.locator('input[type="file"]').setInputFiles(textFile('report.txt'));
    await expect(page.getByText('report.txt')).toBeVisible();

    const downloadPromise = page.waitForEvent('download');
    await page.locator('[title="Download"]').first().click();
    const download = await downloadPromise;
    expect(download.suggestedFilename()).toBe('report.txt');
});

test('deleting a file with confirmation removes it', async ({ page }) => {
    await page.locator('input[type="file"]').setInputFiles(textFile('trash.txt'));
    await expect(page.getByText('trash.txt')).toBeVisible();

    await page.locator('[title="Delete"]').first().click();
    await expect(page.getByText('Confirm action')).toBeVisible();
    await page.locator('[title="Confirm"]').click();

    await expect(page.getByText('trash.txt')).toHaveCount(0);
});

test('search filters the file list', async ({ page }) => {
    const input = page.locator('input[type="file"]');
    await input.setInputFiles(textFile('alpha.txt'));
    await expect(page.getByText('alpha.txt')).toBeVisible();
    await input.setInputFiles(textFile('bravo.txt'));
    await expect(page.getByText('bravo.txt')).toBeVisible();

    await page.getByPlaceholder('Search files...').fill('alpha');
    await expect(page.getByText('alpha.txt')).toBeVisible();
    await expect(page.getByText('bravo.txt')).toHaveCount(0);
});

test('previewing a video opens the player', async ({ page }) => {
    await page.locator('input[type="file"]').setInputFiles({
        name: 'clip.mp4',
        mimeType: 'video/mp4',
        buffer: Buffer.from('fake mp4 bytes')
    });
    await expect(page.getByText('clip.mp4')).toBeVisible();

    await page.getByText('clip.mp4').dblclick();
    await expect(page.getByRole('button', { name: 'Close' })).toBeVisible();
    await expect(page.locator('video')).toHaveCount(1);

    await page.keyboard.press('Escape');
    await expect(page.getByRole('button', { name: 'Close' })).toHaveCount(0);
});

test('previewing a non-video shows no preview available', async ({ page }) => {
    await page.locator('input[type="file"]').setInputFiles(textFile('notes.txt'));
    await expect(page.getByText('notes.txt')).toBeVisible();

    await page.getByText('notes.txt').dblclick();
    await expect(page.getByText('No preview available')).toBeVisible();

    await page.keyboard.press('Escape');
    await expect(page.getByText('No preview available')).toHaveCount(0);
});