import assert from 'node:assert/strict';

global.window = {PYTORRENT_DISABLE_AUTOSTART: true};
const app = await import('../pytorrent/static/js/app.js');
const source = app.buildRuntimeSource();

assert.equal(app.moduleSources.length, 18, 'all frontend module chunks are loaded');
assert.doesNotThrow(() => Function('io', source), 'assembled frontend runtime compiles');

for (const marker of [
  'function renderRow',
  'function renderTable',
  'function scheduleRender',
  'async function post',
  'async function loadRss',
  'async function loadSmartQueue',
  'function ensurePlannerToolsUI',
  'function loadPlannerPreview',
  'function pollerPayload',
  'function pollerDiagnostics',
  'function renderHealthDashboard',
  'function recordNotification',
  'function drawTrafficHistory',
  "socket.on('connect'",
  '/api/download-planner/preview',
  'plannerProfileName',
  'pollerTorrentList',
]) {
  assert.ok(source.includes(marker), `runtime contains ${marker}`);
}

function extractFunction(src, name){
  const start = src.indexOf(`function ${name}`);
  assert.ok(start >= 0, `found function ${name}`);
  const open = src.indexOf('{', start);
  let depth = 0;
  for(let i=open; i<src.length; i++){
    const ch = src[i];
    if(ch === '{') depth++;
    if(ch === '}') depth--;
    if(depth === 0) return src.slice(start, i + 1);
  }
  throw new Error(`unterminated function ${name}`);
}

const escLine = source.match(/const esc = .*?;\n/)?.[0];
assert.ok(escLine, 'found esc helper');

const renderHarness = new Function(`${escLine}
${extractFunction(source, 'progressBar')}
${extractFunction(source, 'compactCell')}
${extractFunction(source, 'table')}
${extractFunction(source, 'smartQueueToastMessage')}
return {esc, progressBar, compactCell, table, smartQueueToastMessage};`)();

assert.equal(renderHarness.esc('<tag>&"'), '&lt;tag&gt;&amp;&quot;', 'esc escapes HTML');
assert.ok(renderHarness.progressBar(42).includes('42%'), 'progressBar renders percentage');
assert.ok(renderHarness.compactCell('x'.repeat(200)).includes('title='), 'compactCell renders title for long text');
assert.ok(renderHarness.table(['A'], [['B']]).includes('<table'), 'table renders HTML table');
assert.ok(renderHarness.smartQueueToastMessage({stopped:[1,2], started:[3], max_active_downloads:5}).includes('Smart Queue:'), 'smartQueue toast renders');

console.log('frontend module tests passed');