teach/public/js/widgets/learning.js

/* Acht compacte educatieve en klaswidgets. Alle invoer blijft tekstContent-safe. */
function learningShell(root, settings, stage){
  root.innerHTML='<div class="edu"><details class="edu-settings"><summary>⚙ <span></span></summary><div class="edu-controls"></div></details><div class="edu-stage"></div></div>';
  root.querySelector('summary span').textContent=T('widgetSettings');
  root.querySelector('.edu-controls').append(...settings);
  root.querySelector('.edu-stage').append(stage);
}
function field(label, el){const w=document.createElement('label');const s=document.createElement('span');s.textContent=label;w.append(s,el);return w}
function btn(text,fn,kind='ghost'){const b=document.createElement('button');b.type='button';b.className='tbtn '+kind;b.textContent=text;b.onclick=fn;return b}
function num(value,min,max){const i=document.createElement('input');i.type='number';i.value=value;i.min=min;i.max=max;return i}

function mountFractions(root,init){
 const S=Object.assign({den:4,show:true},init||{}), den=num(S.den,2,12), show=document.createElement('input'), stage=document.createElement('div');show.type='checkbox';show.checked=S.show;
 const draw=()=>{S.den=Math.max(2,Math.min(12,+den.value||4));S.show=show.checked;stage.className='fraction-wall';stage.innerHTML='';for(let d=1;d<=S.den;d++){const row=document.createElement('div');for(let n=0;n<d;n++){const c=document.createElement('button');c.type='button';c.style.setProperty('--fraction-hue',d*31);c.textContent=S.show?`1/${d}`:'';c.className='fraction-piece';c.onclick=()=>c.classList.toggle('selected');row.append(c)}stage.append(row)}};
 den.onchange=show.onchange=draw;learningShell(root,[field(T('fractionRows'),den),field(T('fractionLabels'),show)],stage);draw();return{getState:()=>({...S})};
}
function mountClock(root,init){
 const S=Object.assign({h:12,m:0,level:1,style:'both',game:'set',amode:'blocks',input:'',linkHands:true,task:true,targetH:3,targetM:30,score:0,streak:0,solved:false,feedback:'',choices:[],answerDigits:[null,null,null,null]},init||{});
 if(typeof S.level==='string')S.level={hour:1,quarter:2,five:2,minute:3}[S.level]||1;S.level=Math.max(1,Math.min(3,+S.level||1));S.amode=S.amode==='type'?'type':'blocks';S.input=String(S.input||'').replace(/\D/g,'').slice(0,4);
 const style=document.createElement('select'),game=document.createElement('select'),linkHands=document.createElement('input'),stage=document.createElement('div'),add=(el,items)=>items.forEach(([value,key])=>el.add(new Option(T(key),value)));
 add(style,[['analogue','clockStyleAnalogue'],['digital','clockStyleDigital'],['words','clockStyleWords'],['both','clockStyleBoth']]);add(game,[['set','clockGameSet'],['read','clockGameRead'],['choose','clockGameChoose']]);style.value=S.style;game.value=S.game;linkHands.type='checkbox';linkHands.checked=S.linkHands;linkHands.onchange=()=>{S.linkHands=linkHands.checked};const linkSetting=field(T('clockLinkHands'),linkHands),syncSettings=()=>{linkSetting.hidden=game.value!=='set'};
 const minuteValues=()=>S.level===1?[0,30]:S.level===2?Array.from({length:12},(_,i)=>i*5):Array.from({length:60},(_,i)=>i),time=(hour,minute)=>`${hour}:${String(minute).padStart(2,'0')}`;
 const daypartKey=hour=>hour<6?'clockNight':hour<12?'clockMorning':hour<18?'clockAfternoon':'clockEvening',clockHour=hour=>hour%12||12;
 const words=(hour,minute)=>{const shown=clockHour(hour),next=shown===12?1:shown+1;let result;if(minute===0)result=T('clockWordsHour').replace('{hour}',shown);else if(minute===15)result=T('clockWordsQuarterPast').replace('{hour}',shown);else if(minute===30)result=T('clockWordsHalf').replace('{hour}',next);else if(minute===45)result=T('clockWordsQuarterTo').replace('{hour}',next);else result=T(minute<30?'clockWordsPast':'clockWordsTo').replace('{minutes}',minute<30?minute:60-minute).replace('{hour}',minute<30?shown:next);return S.level===3?result+' '+T(daypartKey(hour)):result};
 const randomTime=()=>{const values=minuteValues();return{h:S.level===3?Math.floor(Math.random()*24):1+Math.floor(Math.random()*12),m:values[Math.floor(Math.random()*values.length)]}};
 const woodDigit=value=>{const block=document.createElement('span');block.className='blok sm clock-digit-block';const label=document.createElement('span');label.className='bl';label.textContent=String(value);const dots=dotGrid(Number(value));dots.classList.add('blok-dots');block.append(label,dots);return block};
 const timeBlocks=(hour,minute,click)=>{const el=document.createElement(click?'button':'div');if(click)el.type='button';el.className='clock-time-blocks';el.setAttribute('aria-label',time(hour,minute));const digits=String(hour).padStart(2,'0')+String(minute).padStart(2,'0');el.append(woodDigit(digits[0]),woodDigit(digits[1]));const colon=document.createElement('strong');colon.textContent=':';el.append(colon,woodDigit(digits[2]),woodDigit(digits[3]));if(click)el.onclick=click;return el};
 const makeClock=(hour,minute,interactive)=>{const face=document.createElement('div');face.className='clock'+(interactive?' interactive':'');face.setAttribute('role','img');face.setAttribute('aria-label',time(hour,minute));for(let i=0;i<60;i++){const tick=document.createElement('i');tick.className=i%5===0?'clock-tick hour':'clock-tick minor';tick.style.transform=`rotate(${i*6}deg)`;face.append(tick)}[12,1,2,3,4,5,6,7,8,9,10,11].forEach((n,i)=>{const mark=document.createElement('b');mark.textContent=n;mark.style.setProperty('--clock-angle',`${i*30}deg`);face.append(mark)});const hourHand=document.createElement('i'),minuteHand=document.createElement('i'),pin=document.createElement('span');hourHand.className='clock-hand clock-hour';minuteHand.className='clock-hand clock-min';pin.className='clock-pin';const paint=()=>{hourHand.style.transform=`rotate(${S.h*30+S.m/2}deg)`;minuteHand.style.transform=`rotate(${S.m*6}deg)`};if(interactive)paint();else{hourHand.style.transform=`rotate(${hour*30+minute/2}deg)`;minuteHand.style.transform=`rotate(${minute*6}deg)`}face.append(hourHand,minuteHand,pin);if(interactive){const move=e=>{const r=face.getBoundingClientRect(),dx=e.clientX-r.left-r.width/2,dy=e.clientY-r.top-r.height/2,deg=(Math.atan2(dx,-dy)*180/Math.PI+360)%360;if(face.dataset.hand==='minute'){const wanted=Math.round(deg/6)%60,allowed=minuteValues(),distance=v=>Math.min(Math.abs(v-wanted),60-Math.abs(v-wanted));S.m=allowed.reduce((best,v)=>distance(v)<distance(best)?v:best)}else if(S.linkHands){let bestH=12,bestM=0,bestDistance=360;for(let hour=1;hour<=12;hour++)minuteValues().forEach(minute=>{const angle=(hour%12)*30+minute/2,difference=Math.min(Math.abs(angle-deg),360-Math.abs(angle-deg));if(difference<bestDistance){bestDistance=difference;bestH=hour;bestM=minute}});S.h=bestH;S.m=bestM}else S.h=(Math.round((deg-S.m/2)/30)+11)%12+1;paint();const answer=stage.querySelector('.clock-live-answer');if(answer){answer.innerHTML='';answer.append(timeBlocks(S.h,S.m))}};const start=(e,hand)=>{if(S.solved)return;e.preventDefault();e.stopPropagation();face.dataset.hand=hand;face.setPointerCapture(e.pointerId);move(e)};hourHand.onpointerdown=e=>start(e,'hour');minuteHand.onpointerdown=e=>start(e,'minute');face.onpointerdown=e=>{const r=face.getBoundingClientRect(),dx=e.clientX-r.left-r.width/2,dy=e.clientY-r.top-r.height/2;start(e,Math.hypot(dx,dy)>r.width*.22?'minute':'hour')};face.onpointermove=e=>{if(face.hasPointerCapture(e.pointerId))move(e)};face.onpointerup=e=>{move(e);face.releasePointerCapture(e.pointerId);delete face.dataset.hand};face.onpointercancel=e=>{if(face.hasPointerCapture(e.pointerId))face.releasePointerCapture(e.pointerId);delete face.dataset.hand}}return face};
 const assignment=(hour,minute,compact=false)=>{const wrap=document.createElement('div');wrap.className='clock-assignment'+(compact?' compact':'');if(['analogue','both'].includes(S.style)){const clock=makeClock(hour,minute,false);if(compact)clock.classList.add('clock-reference');wrap.append(clock)}if(['digital','both'].includes(S.style)){const digital=document.createElement('output');digital.className='clock-task-digital';digital.textContent=time(hour,minute);wrap.append(digital)}if(['words','both'].includes(S.style)){const written=document.createElement('p');written.className='clock-task-words';written.textContent=words(hour,minute);wrap.append(written)}if(S.level===3&&S.style==='analogue'){const period=document.createElement('span');period.className='clock-daypart';period.textContent=T(daypartKey(hour));wrap.append(period)}return wrap};
 const blockAnswer=()=>{const answer=document.createElement('div');answer.className='clock-block-answer';const instruction=document.createElement('p');instruction.textContent=T('clockBuildHint');const slots=document.createElement('div');slots.className='clock-answer-slots';const makeSlot=index=>{const slot=document.createElement('div');slot.className='slot sm clock-digit-slot'+(S.answerDigits[index]!==null?' filled':'');slot.dataset.index=index;const ghost=document.createElement('div');ghost.className='ghost';ghost.textContent=T('clockDigitGhost');const dots=dotGrid(S.answerDigits[index]===null?0:S.answerDigits[index]);dots.classList.add('slot-dots');slot.append(ghost,dots);if(S.answerDigits[index]!==null){const placed=woodDigit(S.answerDigits[index]);placed.classList.add('in-slot','clock-drag-block');slot.append(placed);slot.onclick=()=>{if(!S.solved){S.answerDigits[index]=null;S.feedback='';draw()}}}return slot};slots.append(makeSlot(0),makeSlot(1));const colon=document.createElement('strong');colon.className='clock-slot-colon';colon.textContent=':';slots.append(colon,makeSlot(2),makeSlot(3));const tray=document.createElement('div');tray.className='clock-block-tray lg-tray';const attachDrag=block=>{block.onpointerdown=e=>{if(S.solved||(e.pointerType==='mouse'&&e.button!==0))return;e.preventDefault();try{block.releasePointerCapture(e.pointerId)}catch(_){}const clone=block.cloneNode(true);clone.id='dragClone';document.body.append(clone);block.classList.add('dragging');const moveTo=ev=>{const zoom=VZ();clone.style.left=ev.clientX/zoom+'px';clone.style.top=ev.clientY/zoom+'px'},hit=ev=>{let found=null;slots.querySelectorAll('.clock-digit-slot').forEach(slot=>{const r=slot.getBoundingClientRect(),pad=8;if(ev.clientX>=r.left-pad&&ev.clientX<=r.right+pad&&ev.clientY>=r.top-pad&&ev.clientY<=r.bottom+pad)found=slot});return found};moveTo(e);let hovered=null;const move=ev=>{moveTo(ev);const target=hit(ev);if(hovered&&hovered!==target)hovered.classList.remove('droptarget');hovered=target;if(hovered)hovered.classList.add('droptarget')},clean=()=>{document.removeEventListener('pointermove',move);document.removeEventListener('pointerup',up);document.removeEventListener('pointercancel',cancel);clone.remove();block.classList.remove('dragging');if(hovered)hovered.classList.remove('droptarget')},up=ev=>{const target=hit(ev);clean();if(target){S.answerDigits[+target.dataset.index]=+block.dataset.digit;S.feedback='';draw()}},cancel=()=>clean();document.addEventListener('pointermove',move);document.addEventListener('pointerup',up);document.addEventListener('pointercancel',cancel)}};'0123456789'.split('').forEach(d=>{const block=woodDigit(+d);block.classList.add('clock-drag-block');block.dataset.digit=d;block.setAttribute('role','button');block.setAttribute('aria-label',T('clockDigit').replace('{digit}',d));block.tabIndex=0;block.onkeydown=e=>{if((e.key==='Enter'||e.key===' ')&&!S.solved){e.preventDefault();const index=S.answerDigits.indexOf(null);if(index>=0){S.answerDigits[index]=+d;draw()}}};attachDrag(block);tray.append(block)});answer.append(instruction,slots,tray);return answer};
 const setFeedback=ok=>{if(S.solved)return;if(ok){S.solved=true;S.score++;S.streak++;S.feedback='good';sndGood()}else{S.streak=0;S.feedback='bad';sndBad()}draw()};
 const check=()=>{if(!S.task)return;if(S.game==='read'){if(S.amode==='blocks'){if(S.answerDigits.some(x=>x===null)){S.feedback='incomplete';sndBad();draw();return}S.h=Number(''+S.answerDigits[0]+S.answerDigits[1]);S.m=Number(''+S.answerDigits[2]+S.answerDigits[3])}else{if(S.input.length<4){S.feedback='incomplete';sndBad();draw();return}S.h=+S.input.slice(0,2);S.m=+S.input.slice(2,4)}}const expectedHour=S.game==='set'?clockHour(S.targetH):S.targetH;setFeedback(S.h===expectedHour&&S.m===S.targetM)};
 const typeAnswer=()=>{const wrap=document.createElement('div');wrap.className='clock-type-answer';const hint=document.createElement('p');hint.textContent=T('clockTypeHint');const display=document.createElement('output');display.className='clock-type-display';const shown=(S.input+'____').slice(0,4);display.textContent=shown.slice(0,2)+':'+shown.slice(2);const pad=document.createElement('div');pad.className='clock-keypad';['7','8','9','⌫','4','5','6','0','1','2','3','✓'].forEach(key=>{const button=btn(key,()=>{if(S.solved)return;if(key==='⌫')S.input=S.input.slice(0,-1);else if(key==='✓'){check();return}else if(S.input.length<4)S.input+=key;S.feedback='';draw()});if(key==='✓')button.classList.add('ok');pad.append(button)});wrap.append(hint,display,pad);return wrap};
 const newTask=()=>{const target=randomTime();S.targetH=target.h;S.targetM=target.m;S.h=12;S.m=0;S.task=true;S.solved=false;S.feedback='';S.input='';S.choices=[];S.answerDigits=[null,null,null,null];if(S.game==='choose'){S.choices=[target];while(S.choices.length<3){const option=randomTime();if(!S.choices.some(x=>x.h===option.h&&x.m===option.m))S.choices.push(option)}S.choices.sort(()=>Math.random()-.5)}draw()};
 const chooseLevel=value=>{S.level=value;S.score=0;S.streak=0;newTask()},toggleMode=()=>{S.amode=S.amode==='blocks'?'type':'blocks';S.feedback='';S.input='';S.answerDigits=[null,null,null,null];draw()};
 const draw=()=>{S.style=style.value;S.game=game.value;stage.className='clock-app';stage.innerHTML='';const top=document.createElement('div');top.className='clock-top';const levelControl=document.createElement('div');levelControl.className='clock-level-control';const label=document.createElement('span');label.textContent=T('clockLevel');const levels=document.createElement('div');levels.className='lg-levels clock-levels';[1,2,3].forEach(value=>{const button=document.createElement('button');button.type='button';button.textContent=T('lvl'+value);button.title=T('clockLevel'+value+'Hint');button.classList.toggle('active',S.level===value);button.onclick=()=>chooseLevel(value);levels.append(button)});levelControl.append(label,levels);top.append(levelControl);if(S.game!=='set'){const mode=btn(S.amode==='blocks'?'🧱':'⌨️',toggleMode);mode.classList.add('clock-mode');mode.title=T('amode');top.append(mode)}const score=document.createElement('span');score.className='clock-score';score.textContent=T('clockScore').replace('{score}',S.score).replace('{streak}',S.streak);top.append(score);stage.append(top);const card=document.createElement('section');card.className='clock-task-card';const title=document.createElement('h3');title.textContent=S.game==='set'?T('clockSetTitle'):S.game==='read'?T('clockReadTitle'):T('clockChooseTitle');card.append(title);
  if(S.task&&S.game==='set'){const prompt=document.createElement('div');prompt.className='clock-target';const label=document.createElement('span');label.textContent=T('clockYourTask');prompt.append(label,assignment(S.targetH,S.targetM,true));card.append(prompt);const work=document.createElement('div');work.className='clock-work';work.append(makeClock(S.h,S.m,true));const live=document.createElement('div');live.className='clock-live-answer';live.append(timeBlocks(S.h,S.m));work.append(live);card.append(work);}
  if(S.task&&S.game==='read'){const layout=document.createElement('div');layout.className='clock-read-layout';layout.append(assignment(S.targetH,S.targetM),S.amode==='blocks'?blockAnswer():typeAnswer());card.append(layout)}
  if(S.task&&S.game==='choose'){card.append(assignment(S.targetH,S.targetM));if(!S.solved){const choices=document.createElement('div');choices.className='clock-choices '+(S.amode==='blocks'?'wood':'plain');const asWords=['digital','both'].includes(S.style);S.choices.forEach(option=>{const choose=()=>setFeedback(option.h===S.targetH&&option.m===S.targetM);if(asWords){const button=btn(words(option.h,option.m),choose);button.classList.add('clock-word-choice');choices.append(button)}else if(S.amode==='blocks')choices.append(timeBlocks(option.h,option.m,choose));else{const button=btn(time(option.h,option.m),choose);button.classList.add('clock-digital-choice');choices.append(button)}});card.append(choices)}}
  const feedback=document.createElement('p');feedback.className='clock-feedback '+(S.feedback==='good'?'ok':S.feedback?'bad':'');feedback.setAttribute('role','status');if(S.feedback)feedback.textContent=T(S.feedback==='good'?'clockCorrect':S.feedback==='incomplete'?'clockIncomplete':'clockTryAgain');card.append(feedback);const actions=document.createElement('div');actions.className='clock-actions';if(S.task&&S.game!=='choose'&&!S.solved&&!(S.game==='read'&&S.amode==='type'))actions.append(btn(T('numberlineCheck'),check,''));actions.append(btn(T('clockNextTask'),newTask,'ghost'));card.append(actions);if(S.task&&S.game==='set'){const hint=document.createElement('small');hint.className='clock-drag-hint';hint.textContent=T('clockDragHint');card.append(hint)}stage.append(card)};
 style.onchange=draw;game.onchange=()=>{syncSettings();newTask()};learningShell(root,[field(T('clockLearningStyle'),style),field(T('clockGame'),game),linkSetting],stage);syncSettings();newTask();return{getState:()=>({...S,choices:S.choices.map(x=>({...x})),answerDigits:[...S.answerDigits]})};
}
function mountPlacevalue(root,init){
 const S=Object.assign({number:1342},init||{}),input=num(S.number,0,999999),stage=document.createElement('div');
 const draw=()=>{S.number=Math.max(0,Math.min(999999,+input.value||0));const digits=String(S.number).padStart(6,'0').split('');stage.className='place-grid';stage.innerHTML='';['HD','TD','D','H','T','E'].forEach((x,i)=>{const d=document.createElement('div');const b=document.createElement('b');b.textContent=x;const o=document.createElement('output');o.textContent=digits[i];d.append(b,o);stage.append(d)})};input.oninput=draw;learningShell(root,[field(T('placeNumber'),input),btn('🎲',()=>{input.value=Math.floor(Math.random()*999999);draw()})],stage);draw();return{getState:()=>({...S})};
}
function mountMoney(root,init){
 const S=Object.assign({target:3.75,total:0},init||{}),stage=document.createElement('div'),out=document.createElement('output');
 const draw=()=>{stage.className='money';stage.innerHTML='';const task=document.createElement('h3');task.textContent=T('moneyMake').replace('{amount}',S.target.toFixed(2));stage.append(task);[2,1,.5,.2,.1,.05].forEach(v=>stage.append(btn('€ '+v.toFixed(2),()=>{S.total=Math.round((S.total+v)*100)/100;renderTotal()})));stage.append(out,btn(T('sentenceClear'),()=>{S.total=0;renderTotal()}),btn(T('numberlineCheck'),()=>{S.total===S.target?sndGood():sndBad()},''));renderTotal()};const renderTotal=()=>out.textContent='€ '+S.total.toFixed(2);learningShell(root,[btn(T('numberlineNew'),()=>{S.target=(50+Math.floor(Math.random()*950))/100;S.total=0;draw()})],stage);draw();return{getState:()=>({...S})};
}
function mountWordtypes(root,init){
 const S=Object.assign({sentence:'De vrolijke hond rent snel',answers:{}},init||{}),input=document.createElement('input'),stage=document.createElement('div');input.value=S.sentence;
 const types=['noun','verb','adjective','other'],draw=()=>{S.sentence=input.value.slice(0,120);stage.className='wordtypes';stage.innerHTML='';S.sentence.split(/\s+/).filter(Boolean).forEach((word,i)=>{const w=document.createElement('button');w.type='button';w.textContent=word;const type=S.answers[i]||'other';w.dataset.type=type;w.onclick=()=>{S.answers[i]=types[(types.indexOf(w.dataset.type)+1)%types.length];draw()};stage.append(w)});const legend=document.createElement('p');legend.textContent=T('wordtypeHint');stage.append(legend)};input.oninput=draw;learningShell(root,[field(T('wordtypeSentence'),input)],stage);draw();return{getState:()=>({...S})};
}
function mountSchedule(root,init){
 const S=Object.assign({items:[{time:'08:30',text:'Start'},{time:'10:15',text:'Pauze'}]},init||{}),time=document.createElement('input'),text=document.createElement('input'),stage=document.createElement('div');time.type='time';time.value='09:00';text.placeholder=T('scheduleActivity');
 const draw=()=>{stage.className='schedule';stage.innerHTML='';S.items.sort((a,b)=>a.time.localeCompare(b.time)).forEach((it,i)=>{const row=document.createElement('div');const t=document.createElement('time');t.textContent=it.time;const s=document.createElement('span');s.textContent=it.text;row.append(t,s,btn('×',()=>{S.items.splice(i,1);draw()}));stage.append(row)});if(!S.items.length){const e=document.createElement('p');e.className='edu-empty';e.textContent=T('scheduleEmpty');stage.append(e)}};
 learningShell(root,[time,text,btn(T('addWord'),()=>{if(text.value.trim()){S.items.push({time:time.value,text:text.value.trim().slice(0,50)});text.value='';draw()}})],stage);draw();return{getState:()=>({...S,items:S.items.map(x=>({...x}))})};
}
function mountMood(root,init){
 const S=Object.assign({votes:[0,0,0,0,0]},init||{}),stage=document.createElement('div'),faces=['😢','😕','😐','🙂','🤩'];
 const draw=()=>{stage.className='mood';stage.innerHTML='';faces.forEach((f,i)=>{const b=btn(f,()=>{S.votes[i]++;draw()});const n=document.createElement('span');n.textContent=S.votes[i];b.append(n);stage.append(b)})};learningShell(root,[btn(T('pollReset'),()=>{S.votes=[0,0,0,0,0];draw()})],stage);draw();return{getState:()=>({...S,votes:[...S.votes]})};
}
function mountPoll(root,init){
 const S=Object.assign({question:'Wat kies jij?',options:[{text:'A',votes:0},{text:'B',votes:0}]},init||{}),question=document.createElement('input'),options=document.createElement('textarea'),stage=document.createElement('div');question.value=S.question;options.value=S.options.map(x=>x.text).join('\n');
 const sync=()=>{S.question=question.value.slice(0,100);const old=new Map(S.options.map(x=>[x.text,x.votes]));S.options=options.value.split('\n').map(x=>x.trim()).filter(Boolean).slice(0,6).map(text=>({text,votes:old.get(text)||0}));draw()},draw=()=>{stage.className='poll';stage.innerHTML='';const h=document.createElement('h3');h.textContent=S.question;stage.append(h);const max=Math.max(1,...S.options.map(x=>x.votes));S.options.forEach(o=>{const b=btn(o.text,()=>{o.votes++;draw()});const bar=document.createElement('i');bar.style.width=(o.votes/max*100)+'%';const n=document.createElement('span');n.textContent=o.votes;b.append(bar,n);stage.append(b)})};question.oninput=options.oninput=sync;learningShell(root,[field(T('pollQuestion'),question),field(T('pollOptions'),options),btn(T('pollReset'),()=>{S.options.forEach(x=>x.votes=0);draw()})],stage);draw();return{getState:()=>({...S,options:S.options.map(x=>({...x}))})};
}