import { test, expect } from '@playwright/test';
import { MOCK_FS_INIT_SCRIPT } from './fixtures/mock-fs-api.js';
import * as path from 'path';

const HTML_PATH = path.resolve('browse/dist/browse.html');

test.describe('Browse', () => {
    test.beforeEach(async ({ page }) => {
        await page.addInitScript(MOCK_FS_INIT_SCRIPT);
    });

    test('loads with the empty state visible and add-directory button enabled', async ({ page }) => {
        await page.goto(`file://${HTML_PATH}`, { waitUntil: 'load' });
        await page.waitForSelector('#addDirectoryBtn', { timeout: 15000 });

        // file:// + no auto-server-root → the empty state is shown and the
        // browse table stays hidden until the user picks a directory.
        await expect(page.locator('#emptyState')).toBeVisible();
        await expect(page.locator('#browseRoot')).toBeHidden();

        const addDirBtn = page.locator('#addDirectoryBtn');
        await expect(addDirBtn).toBeVisible();
        await expect(addDirBtn).not.toBeDisabled();
    });

    test('renders rows from a mock directory after picking', async ({ page }) => {
        await page.goto(`file://${HTML_PATH}`, { waitUntil: 'load' });
        await page.waitForSelector('#addDirectoryBtn', { timeout: 15000 });

        await page.evaluate(() => {
            window.__setMockDirectory('docs', [
                { name: 'spec.pdf',    content: '%PDF-fixture',           size: 1024 },
                { name: 'readme.md',   content: '# Hello\n',              size: 8 },
                { name: 'notes.txt',   content: 'note one\nnote two\n',   size: 16 },
            ]);
        });

        await page.locator('#addDirectoryBtn').click();

        // Browse swaps from empty state to the populated table.
        await page.waitForSelector('#browseRoot:not(.hidden)', { timeout: 10000 });
        await page.waitForFunction(
            () => document.querySelectorAll('#browseTable tbody tr.tree-row').length >= 3,
            { timeout: 10000 }
        );

        const rows = await page.locator('#browseTable tbody tr.tree-row').count();
        expect(rows).toBeGreaterThanOrEqual(3);
    });
});