/**
 * check-status.js
 * Pings all service URLs and updates services-data.json.
 * Then re-embeds the data into services-loader.js so file:// works.
 *
 * Usage: node check-status.js
 */
const fs = require('fs');
const path = require('path');

const DATA_FILE = path.join(__dirname, 'services-data.json');
const LOADER_FILE = path.join(__dirname, 'services-loader.js');
const INLINE_START = '// === INLINE DATA — sync with services-data.json ===';
const INLINE_END = '// === END INLINE DATA ===';

async function checkServices() {
    console.log('--- Service Status Check Started ---');
    let data;
    try {
        data = JSON.parse(fs.readFileSync(DATA_FILE, 'utf8'));
    } catch (err) {
        console.error('Error reading data file:', err);
        return;
    }

    for (const service of data.services) {
        process.stdout.write(`Checking ${service.name}... `);
        try {
            const controller = new AbortController();
            const timeout = setTimeout(() => controller.abort(), 5000);
            const res = await fetch(service.url, {
                signal: controller.signal,
                method: 'HEAD',
                headers: { 'User-Agent': 'Status-Checker/1.0' }
            });
            clearTimeout(timeout);
            if (res.status === 200 || res.status === 201) {
                console.log('\x1b[32mUP\x1b[0m (' + res.status + ')');
                delete service.status;
            } else {
                console.log('\x1b[33mDOWN\x1b[0m (' + res.status + ')');
                service.status = 'maintenance';
            }
        } catch (err) {
            console.log('\x1b[31mOFFLINE\x1b[0m (' + err.message + ')');
            service.status = 'maintenance';
        }
    }

    // Write updated services-data.json
    fs.writeFileSync(DATA_FILE, JSON.stringify(data, null, 2), 'utf8');
    console.log('\n✓ services-data.json updated\n');

    // Sync embedded data into services-loader.js
    let loader = fs.readFileSync(LOADER_FILE, 'utf8');
    const startIdx = loader.indexOf(INLINE_START);
    const endIdx = loader.indexOf(INLINE_END);
    if (startIdx === -1 || endIdx === -1) {
        console.error('Could not find INLINE DATA markers in services-loader.js');
        return;
    }
    const before = loader.substring(0, startIdx);
    const after = loader.substring(endIdx + INLINE_END.length);
    const newLine = `${INLINE_START}\nconst SERVICES_EMBEDDED = ${JSON.stringify(data)};\n${INLINE_END}`;
    fs.writeFileSync(LOADER_FILE, before + newLine + after, 'utf8');
    console.log('✓ services-loader.js inline data synced');
    console.log('--- Done ---');
}

checkServices();