// @ts-check
const path = require('path');
const fs = require('fs');

const TRACKER_DIR = path.join(__dirname, '../../user/pages/01.tracker');

/**
 * Wait for all filepond items to finish XHR upload.
 */
async function waitForFilePondUpload(page) {
    await page.waitForFunction(() => {
        const items = document.querySelectorAll('.filepond--item[data-filepond-item-state]');
        return items.length > 0 && [...items].every(
            el => el.getAttribute('data-filepond-item-state') === 'processing-complete'
        );
    }, { timeout: 20_000 });
}

/**
 * Submit the post form with minimal required fields and return the unique title marker.
 * Caller is responsible for cleanup via cleanupEntry().
 */
async function postEntry(page, { titleTag, content = 'Automated test. Safe to delete.', city = '', country = '' } = {}) {
    const title = `UI Test ${titleTag} ${Date.now()}`;
    await page.goto('/post');
    await page.fill('input[name="data[title]"]', title);
    await page.fill('textarea[name="data[content]"]', content);
    if (city) await page.fill('input[name="data[location_city]"]', city);
    if (country) await page.fill('input[name="data[location_country]"]', country);
    await page.locator('.btn-post').evaluate(el => el.click());
    await page.waitForSelector('.form-messages, .notices', { timeout: 15_000 });
    return titleTag;
}

/**
 * Find a tracker entry folder by a unique slug fragment, then delete it.
 */
function cleanupEntry(slugFragment) {
    if (!slugFragment) return;
    const entries = fs.readdirSync(TRACKER_DIR);
    const match = entries.find(e => e.includes(slugFragment));
    if (match) {
        fs.rmSync(path.join(TRACKER_DIR, match), { recursive: true });
    }
}

/**
 * Find the first entry folder matching a slug fragment and return its full path.
 */
function findEntry(slugFragment) {
    const entries = fs.readdirSync(TRACKER_DIR);
    const match = entries.find(e => e.includes(slugFragment));
    return match ? path.join(TRACKER_DIR, match) : null;
}

/**
 * Read the entry .md file (entry.md or entry.en.md) from an entry folder.
 */
function readEntryMd(entryDir) {
    const name = ['entry.md', 'entry.en.md'].find(f => fs.existsSync(path.join(entryDir, f)));
    if (!name) return null;
    return fs.readFileSync(path.join(entryDir, name), 'utf-8');
}

module.exports = { waitForFilePondUpload, postEntry, cleanupEntry, findEntry, readEntryMd, TRACKER_DIR };