// Controlled audio ended events; real capture function, no camera/API writes.
import assert from 'node:assert/strict';
import fs from 'node:fs';
import {execSync} from 'node:child_process';
import {fileURLToPath,pathToFileURL} from 'node:url';
const {chromium}=await import(pathToFileURL(execSync('npm root -g',{encoding:'utf8'}).trim()+'/playwright/index.mjs').href);
const browser=await chromium.launch();
try {
  const page=await browser.newPage();const errors=[];
  page.on('pageerror',e=>errors.push(e.message));
  const source=fs.readFileSync(fileURLToPath(new URL('../js/app.js',import.meta.url)),'utf8');
  await page.route('**/api/**',r=>{assert.equal(r.request().method(),'GET');return r.fulfill({json:{ok:true,user:{kind:'browser'}}});});
  await page.route('**/assets/voice/*.mp3',r=>r.fulfill({body:r.request().url().split('/').pop()}));
  await page.route('**/js/app.js*',r=>r.fulfill({contentType:'text/javascript',body:source.replace(/\}\)\(\);\s*$/,`
    window.__countdown = {
      start: function(step) { camStep=step; currentScreen='s-cam'; camLive=true; shutterLock=false;
        captureFromVideo=function(){window.__shots.push(step);return 'fixture';};
        checkStill=function(){return Promise.resolve(null);};
        onPhotoCaptured=function(){window.__completed.push(step);}; doCapture(); },
      again:doCapture, cancel:leaveCamera,
      busy:function(){return shutterLock;}
    };
  })();`)}));
  await page.addInitScript(()=>{
    window.__audio=[];window.__shots=[];window.__completed=[];
    window.AudioContext=class {
      constructor(){this.destination={};}
      get state(){return window.__mute?'suspended':'running';}
      decodeAudioData(ab,resolve){const b={id:new TextDecoder().decode(ab),duration:.9};resolve(b);return Promise.resolve(b);}
      createBufferSource(){return {connect(){},stop(){},start(){window.__audio.push(this);}};}
    };
  });
  await page.goto(process.env.H5_BASE_URL||'http://127.0.0.1:8080/');
  await page.locator('body').click({position:{x:2,y:2}});
  await page.waitForTimeout(300);
  for(let step=0;step<3;step++){
    await page.evaluate(n=>window.__countdown.start(n),step);
    await page.waitForFunction(n=>window.__audio.length===n,step+1);
    assert.equal(await page.evaluate(()=>window.__audio.at(-1).buffer.id),'countdown-321.mp3');
    assert.equal(await page.locator('#cam-countdown').textContent(),'3');
    assert.equal(await page.locator('#cam-countdown').evaluate(e=>e.hidden),false);
    await page.evaluate(()=>window.__countdown.again());
    await page.waitForTimeout(350);
    assert.equal(await page.evaluate(()=>window.__shots.length),step,'no capture before audio ended');
    assert(await page.evaluate(()=>window.__countdown.busy()));
    assert.equal(await page.locator('#cam-countdown').textContent(),'2');
    await page.waitForFunction(()=>document.querySelector('#cam-countdown').textContent==='1');
    await page.evaluate(()=>window.__audio.at(-1).onended());
    await page.waitForFunction(n=>window.__completed.length===n,step+1);
    assert.equal(await page.locator('#cam-countdown').evaluate(e=>e.hidden),true);
  }
  await page.evaluate(()=>window.__countdown.start(0));
  await page.waitForFunction(()=>window.__audio.length===4);
  await page.evaluate(()=>window.__countdown.cancel());
  assert.equal(await page.locator('#cam-countdown').evaluate(e=>e.hidden),true,'cancel immediately clears countdown');
  await page.waitForTimeout(700);
  assert.equal(await page.evaluate(()=>window.__shots.length),3,'cancelled countdown never captures');
  await page.evaluate(()=>{window.__mute=true;window.__countdown.start(0);});
  assert.equal(await page.locator('#cam-countdown').textContent(),'3');
  await page.waitForTimeout(350);
  assert.equal(await page.evaluate(()=>window.__shots.length),3,'silent devices still wait for visual countdown');
  await page.waitForFunction(()=>window.__completed.length===4);
  assert.equal(await page.locator('#cam-countdown').evaluate(e=>e.hidden),true);
  assert.deepEqual(errors,[]);
  console.log('PASS: all 3 shots show animated 3/2/1, wait for voice and visual completion; duplicate shutter ignored; cancellation clears digits; silent-device countdown');
}finally{await browser.close();}