// DOM + actual Python HTTP handler checks using temporary data and no network.
// Run with a locally available jsdom: NODE_PATH=/path/to/node_modules node test_ui.cjs
const {JSDOM} = require('jsdom');
const fs = require('node:fs');
const os = require('node:os');
const path = require('node:path');
const assert = require('node:assert/strict');
const {spawnSync} = require('node:child_process');
const root = fs.mkdtempSync(path.join(os.tmpdir(), 'ddj-rejection-test-'));
const folder = path.join(root, 'fixture');
fs.mkdirSync(folder);
for (const id of ['A', 'B', 'C', 'D']) {
  for (const suffix of ['source', ...(id === 'C' ? [] : ['edited']), ...(id === 'D' ? [] : ['result', 'result_v104'])]) {
    fs.writeFileSync(path.join(folder, `${id}_${suffix}.png`), 'fixture image');
  }
}
const bridge = `import json,sys
from pathlib import Path
from app import Dataset
from test_app import request_without_socket
root=Path(sys.argv[1])
assert root.name.startswith('ddj-rejection-test-')
request=json.load(sys.stdin)
print(json.dumps(request_without_socket(Dataset(root),request['path'],request.get('body')),ensure_ascii=False))`;
function api(url, body) {
  const run = spawnSync(process.env.PYTHON || 'python3', ['-c', bridge, root], {
    cwd:__dirname, input:JSON.stringify({path:url,body}), encoding:'utf8'
  });
  assert.equal(run.status, 0, run.stderr);
  return JSON.parse(run.stdout);
}
const pages = [];
const {buildSync} = require('esbuild');
const bundle = buildSync({entryPoints:[path.join(__dirname,'src/main.jsx')],bundle:true,write:false,format:'iife',loader:{'.css':'empty'},define:{'process.env.NODE_ENV':'"test"'}}).outputFiles[0].text;
function page() {
  const dom = new JSDOM(fs.readFileSync(path.join(__dirname,'static/index.html'),'utf8'), {
    url:'http://127.0.0.1', runScripts:'outside-only', pretendToBeVisual:true
  });
  pages.push(dom);
  const win = dom.window;
  win.fetch = async (url, options) => {
    const response = api(url, options?.body === undefined ? undefined : JSON.parse(options.body));
    return {ok:response.status < 400, json:async () => response.data};
  };
  const style = win.document.createElement('style');
  style.textContent = fs.readFileSync(path.join(__dirname,'src/style.css'),'utf8');
  win.document.head.append(style);
  win.HTMLDialogElement.prototype.showModal = function () { this.open = true; };
  win.HTMLDialogElement.prototype.close = function () { this.open = false; };
  win.eval(bundle);
  return {win, $:id => win.document.getElementById(id), click:selector => win.document.querySelector(selector).click()};
}
const settle = async () => { for (let i=0;i<4;i++) await new Promise(resolve => setTimeout(resolve, 40)); };
const label = (id, suffix) => path.join(folder, `${id}_${suffix}.txt`);
async function main() {
  const p = page();
  const stale = page();
  await settle();
  assert.equal(p.$('itemId').textContent, 'A', p.$('toast')?.textContent);
  assert(!p.$('enlargeSource').hidden && !p.$('enlargeEdited').hidden);
  assert(p.$('sourceImage').src.includes('A_source.png'));
  assert(p.$('editedImage').src.includes('A_edited.png'));
  assert.equal(p.win.getComputedStyle(p.win.document.querySelector('.reference-images')).display,'grid');
  p.click('#enlargeEdited');
  await settle();
  assert(p.$('imageDialog').open);
  assert(p.$('dialogImage').src.includes('A_edited.png'));
  p.click('#closeDialog');
  await settle();
  p.click('#rejectResults');
  await settle();
  assert.equal(fs.readFileSync(label('A','all_rejected'),'utf8'),'result_unsatisfied\n');
  assert(!fs.existsSync(label('A','best')));
  assert.equal(p.$('itemId').textContent, 'B');
  assert.equal(p.$('rejectedCount').textContent, '1');
  stale.click('.choose-button');
  await settle();
  assert(stale.$('toast').classList.contains('error'));
  assert.equal(fs.readFileSync(label('A','all_rejected'),'utf8'),'result_unsatisfied\n');
  p.click('#rejectEdited');
  await settle();
  assert.equal(fs.readFileSync(label('B','all_rejected'),'utf8'),'edited_unsatisfied\n');
  assert.equal(p.$('itemId').textContent, 'C');
  assert(p.$('rejectEdited').disabled);
  assert(!p.$('missingEdited').hidden);
  p.click('#skip');
  await settle();
  assert(!p.$('empty').hidden);
  assert(!fs.existsSync(label('C','best')) && !fs.existsSync(label('C','all_rejected')));
  const reloaded = page();
  await settle();
  assert.equal(reloaded.$('itemId').textContent, 'C');
  p.click('[data-filter="rejected"]');
  await settle();
  assert.equal(p.$('itemId').textContent, 'A', p.$('toast')?.textContent);
  assert.equal(p.$('savedName').textContent, '结果都不满意');
  assert(p.$('rejectResults').disabled);
  p.click('#rejectEdited');
  await settle();
  assert.equal(fs.readFileSync(label('A','all_rejected'),'utf8'),'edited_unsatisfied\n');
  p.click('#previous');
  await settle();
  assert.equal(p.$('itemId').textContent, 'A', p.$('toast')?.textContent);
  p.click('.result-card:last-child .choose-button');
  await settle();
  assert(!fs.existsSync(label('A','all_rejected')));
  assert.equal(fs.readFileSync(label('A','best'),'utf8'),'A_result_v104.png\n');
  assert.equal(p.$('itemId').textContent, 'B');
  p.click('#clearBest');
  await settle();
  assert(!fs.existsSync(label('B','all_rejected')));
  assert(p.$('savedBox').hidden);
  p.click('[data-filter="no_results"]');
  await settle();
  assert.equal(p.$('itemId').textContent, 'D');
  assert(p.$('rejectResults').disabled);
  assert(!p.$('rejectEdited').disabled);
  p.click('#rejectEdited');
  await settle();
  assert.equal(fs.readFileSync(label('D','all_rejected'),'utf8'),'edited_unsatisfied\n');
  const final = api('/api/state').data;
  assert.deepEqual(final.stats,{total:4,done:2,rejected:1,pending:2,no_results:1});
  p.click('[data-filter="pending"]');
  await settle();
  assert.equal(p.$('itemId').textContent, 'B');
  p.click('.perfect-button');
  await settle();
  assert.equal(fs.readFileSync(label('B','perfect'),'utf8'),'B_result.png\n');
  assert.equal(fs.readFileSync(label('B','best'),'utf8'),'B_result.png\n');
  assert(!fs.existsSync(path.join(folder,'B_perfect.png')));
  assert(p.$('empty')); // C was explicitly skipped earlier in this session.
  p.click('#previous');
  await settle();
  assert(p.$('itemInfo').textContent.includes('完美'));
  p.click('#clearBest');
  await settle();
  assert(!fs.existsSync(label('B','perfect')));
  // Exercise all completed subfilters against all four annotation types.
  for (const [id, kind, reason] of [['B','perfect'],['C','reject','result_unsatisfied']]) {
    const item = api('/api/state').data.items.find(x => x.id === id);
    assert.equal(api('/api/'+kind,{key:item.key,revision:item.revision,result:id+'_result.png',reason}).status,200);
  }
  const filtered = page();
  await settle();
  filtered.click('[data-filter="done"]');
  await settle();
  async function subtype(type, expected) {
    filtered.$('annotationType').value = type;
    filtered.$('annotationType').dispatchEvent(new filtered.win.Event('change',{bubbles:true}));
    await settle();
    assert.deepEqual([...filtered.$('jump').options].map(x => x.textContent.replace(/^[✓★] /,'')), expected);
  }
  await subtype('perfect',['B']);
  await subtype('best',['A','B']);
  await subtype('ordinary',['A']);
  await subtype('result_unsatisfied',['C']);
  await subtype('edited_unsatisfied',['D']);
  await subtype('all',['A','B','C','D']);
  const other = path.join(root, 'other');
  fs.mkdirSync(other);
  for (const suffix of ['source','result']) fs.writeFileSync(path.join(other,`E_${suffix}.png`),'fixture image');
  filtered.click('#refresh');
  await settle();
  assert.equal(filtered.$('progressText').textContent, '4 / 5');
  async function selectFolder(value, expected) {
    filtered.$('folder').value = value;
    filtered.$('folder').dispatchEvent(new filtered.win.Event('change',{bubbles:true}));
    await settle();
    assert.equal(filtered.$('progressText').textContent, expected);
  }
  await selectFolder('fixture','4 / 4');
  assert.equal(filtered.win.document.querySelector('.progress-track i').style.width,'100%');
  await selectFolder('other','0 / 1');
  assert.equal(filtered.win.document.querySelector('.progress-track i').style.width,'0%');
  await selectFolder('','4 / 5');
  // Prefix directories stay grouped under their model in filters and progress.
  for (const id of ['ABC123', 'XYZ987']) {
    const shard = path.join(root, 'sharded-model', id.slice(0, 3));
    fs.mkdirSync(shard, {recursive:true});
    for (const suffix of ['source', 'result']) fs.writeFileSync(path.join(shard, `${id}_${suffix}.png`), 'fixture');
    if (id === 'ABC123') fs.writeFileSync(path.join(shard, `${id}_best.txt`), `${id}_result.png\n`);
  }
  filtered.click('#refresh');
  await settle();
  assert.deepEqual([...filtered.$('folder').options].map(x => x.value), ['', 'fixture', 'other', 'sharded-model']);
  await selectFolder('sharded-model', '1 / 2');
  assert.equal(filtered.$('totalCount').textContent, '2');
  assert.equal(filtered.$('pendingCount').textContent, '1');
  assert.equal(filtered.$('itemId').textContent, 'ABC123');
  filtered.click('[data-filter="pending"]');
  await settle();
  assert.equal(filtered.$('itemId').textContent, 'XYZ987');
  filtered.click('.choose-button');
  await settle();
  assert.equal(filtered.$('progressText').textContent, '2 / 2');
  assert.equal(fs.readFileSync(path.join(root, 'sharded-model/XYZ/XYZ987_best.txt'), 'utf8'), 'XYZ987_result.png\n');
  console.log('PASS: simultaneous source/edited, enlarged edited, both rejection reasons, auto advance, reload persistence, skip, filters, missing edited/result, reselect, clear, stale-tab protection.');
}
main().catch(error => { console.error(error); process.exitCode=1; }).finally(() => {
  pages.forEach(dom => dom.window.close());
  fs.rmSync(root,{recursive:true,force:true});
});