'use strict';
var wizard=null;
var video=document.getElementById('calibrationVideo');
function wizardFinish(error){
 if(!wizard)return;
 clearInterval(wizard.timer);wizard=null;window.remoteNavigationScope=null;video.pause();video.style.display='none';
 if(typeof video.removeAttribute==='function'){video.removeAttribute('src');video.load();}
 document.getElementById('cancelCalibration').disabled=true;
 document.getElementById('calibrate').disabled=false;document.getElementById('validateCalibration').disabled=false;
 call('calibrationSession',function(r){if(r.returnValue===false)document.getElementById('error').textContent=r.errorText;else call('status',display);},{enabled:false});
 call('calibrationResult',function(){},{message:error||document.getElementById('wizardStatus').textContent});
 if(error)document.getElementById('wizardStatus').textContent=error;
 document.getElementById('calibrate').focus();
}
function wizardSample(){
 if(!wizard || wizard.busy)return;
 if(Date.now()-wizard.started>100000){wizardFinish('Calibration timed out. Saved profile unchanged.');return;}
 if(wizard.validation)return;
 var t=video.currentTime;
 if(t>=68){
  try{
   var measured=calibrationFit(calibrationAverage(wizard.baseline),wizard.patches.map(calibrationAverage),wizard.model);
   profile='custom';profileDirty=true;showProfile();document.getElementById('customProfile').value=JSON.stringify(measured,null,2);
   document.getElementById('wizardStatus').textContent='Measured '+measured.points.length+' edge regions. Select Save profile, then Validate profile to check all four colored edges. The previous saved profile is still active.';
   wizard.busy=true;
   call('calibrationDraft',function(r){if(wizard)wizardFinish(r.returnValue===false?r.errorText:undefined);},{profile:'custom',model:measured.model,points:measured.points});
  }catch(e){wizardFinish(e.message);}
  return;
 }
 var step=t<4?-1:Math.floor((t-4)/2),local=t<4?t:(t-4)%2;
 if(step<0 && (t<.8 || t>3.2) || step>=0 && (local<.65 || local>1.75))return;
 wizard.busy=true;
 call('status',function(s){
  if(!wizard)return;
  wizard.busy=false;
  if(s.returnValue===false || !s.calibrating){wizardFinish(s.errorText||'Calibration session ended. Saved profile unchanged.');return;}
  // Ignore duplicates, held output and replies crossing a stimulus boundary.
  var current=video.currentTime,nowStep=current<4?-1:Math.floor((current-4)/2);
  if(nowStep!==step || s.sampleSequence===wizard.sequence || s.sampleAgeMs<0 || s.sampleAgeMs>350 || !s.colorValid || !Array.isArray(s.regions) || s.regions.length!==16)return;
  wizard.sequence=s.sampleSequence;
  (step<0?wizard.baseline:wizard.patches[step]).push(calibrationLuma(s.regions));
  document.getElementById('wizardStatus').textContent=step<0?'Measuring black reference...':'Measuring edge patch '+(step+1)+' of 32...';
 });
}
function wizardStart(validation){
 if(wizard)return;
 if(typeof showPanel==='function')showPanel('calibration',false);
 if(targetDirty || profileDirty){document.getElementById('wizardStatus').textContent='Save receiver and profile edits before starting.';return;}
 document.getElementById('calibrate').disabled=true;document.getElementById('validateCalibration').disabled=true;
 document.getElementById('cancelCalibration').disabled=false;
 window.remoteNavigationScope=['cancelCalibration'];
 wizard={validation:validation,started:Date.now(),busy:false,sequence:-1,model:'',baseline:[],patches:Array.from({length:32},function(){return [];})};
 document.getElementById('wizardStatus').textContent='Starting full-screen capture. Keep the app visible; do not change zoom or aspect ratio.';
 call('calibrationSession',function(r){
  if(!wizard)return;if(r.returnValue===false){wizardFinish(r.errorText);return;}
  // Start the video plane before waiting for histogram data. Without another
  // running video, waiting first would prevent calibration from ever starting.
  video.src='calibration.mp4';if(typeof video.load==='function')video.load();
  video.style.display='block';var warmup=video.play();
  if(warmup && warmup.catch)warmup.catch(function(){wizardFinish('The TV could not play the calibration video. Saved profile unchanged.');});
  call('start',function(){waitCapture();});
 },{enabled:true});
 function waitCapture(){
  if(!wizard)return;
  call('status',function(s){
   if(!wizard)return;
   if(s.running && s.activeSource!=='PicCap' && s.tvModel && s.colorValid){
    wizard.model=s.tvModel;video.currentTime=validation?68:0;video.style.display='block';
    document.getElementById('cancelCalibration').focus();
    var playing=video.play();if(playing && playing.catch)playing.catch(function(){wizardFinish('The TV could not play the calibration video. Saved profile unchanged.');});
    wizard.timer=setInterval(wizardSample,250);
   }else if(Date.now()-wizard.started<15000)setTimeout(waitCapture,500);
   else wizardFinish('No fresh full-screen histogram capture or TV model. Saved profile unchanged.');
  });
 }
}
document.getElementById('calibrate').onclick=function(){wizardStart(false);};
document.getElementById('validateCalibration').onclick=function(){wizardStart(true);};
document.getElementById('cancelCalibration').onclick=function(){wizardFinish('Calibration cancelled. Saved profile unchanged.');};
video.addEventListener('ended',function(){if(wizard && wizard.validation)wizardFinish('Validation finished. Top-left red, top-right green, bottom-right blue, bottom-left yellow. Check matching LED positions.');else wizardSample();});
video.addEventListener('error',function(){wizardFinish('Calibration video playback failed. Saved profile unchanged.');});
document.addEventListener('keydown',function(e){if(wizard && (e.keyCode===461 || e.key==='Escape')){e.preventDefault();wizardFinish('Calibration cancelled. Saved profile unchanged.');}});
window.addEventListener('pagehide',function(){wizardFinish();});
// An explicit launch action also supports starting the TV's guided test remotely.
function wizardLaunch(raw){try{var params=typeof raw==='string'?JSON.parse(raw):raw;if(params && params.action==='calibrate')wizardStart(false);else if(params && params.action==='repairRoot'){showPanel('overview');repairRoot(function(ok){if(ok)call('status',display);});}}catch(e){document.getElementById('wizardStatus').textContent='Invalid launch parameters.';}}
if(typeof PalmSystem!=='undefined' && PalmSystem.launchParams)setTimeout(function(){wizardLaunch(PalmSystem.launchParams);},1000);
window.addEventListener('webOSRelaunch',function(){if(typeof PalmSystem!=='undefined')wizardLaunch(PalmSystem.launchParams);});