/* ═══════════════════════════════════════════
   DistractIQ · script.js
   ═══════════════════════════════════════════ */
// ── Interactive Assets ──
const sounds = {
    pop: new Audio('https://assets.mixkit.co/sfx/preview/mixkit-modern-technology-select-3124.mp3'),
    scan: new Audio('https://assets.mixkit.co/sfx/preview/mixkit-futuristic-robotic-data-601.mp3'),
    levelUp: new Audio('https://assets.mixkit.co/sfx/preview/mixkit-arcade-retro-changing-tab-206.mp3')
};
Object.values(sounds).forEach(s => s.volume = 0.2);

const trapRoasts = [
    "Isliye tumhare exams clear nahi hote, distraction ki magnet ho tum! 🧲",
    "Focus focus focus... oh look, a useless button! - You, probably. 🤡",
    "Self-control: 0. Button clicking skills: 100. Proud of you. 🙄",
    "Beta, career par dhyan de lo, is button par nahi. 🧬",
    "Physics wallah se pehle distraction wallah banoge tum. 📉"
];
/* ── State ── */
const S = {
  name: '', quizDone: false, quizAnswers: [],
  results: null, history: [], streak: 0,
  xp: 0, darkMode: true,
  inputs: { study:4, phone:3, social:2, sleep:7, notifications:50 }
};

/* ── Persistence ── */
function save(){ try{ localStorage.setItem('diq', JSON.stringify(S)); }catch(e){} }
function load(){
  try{
    const d = JSON.parse(localStorage.getItem('diq')||'null');
    if(d){ Object.assign(S, d); }
  }catch(e){}
}

/* ════════════════════════════════════════════
   GALAXY CANVAS
════════════════════════════════════════════ */
(function initGalaxy(){
  const cv = document.getElementById('galaxy');
  const ctx = cv.getContext('2d');
  let W, H, stars=[], nebulas=[];

  function resize(){ W=cv.width=innerWidth; H=cv.height=innerHeight; }

  function mkStars(){
    stars = Array.from({length:220},()=>({
      x:Math.random()*W, y:Math.random()*H,
      r:Math.random()*1.6+.3,
      a:Math.random(), da:(Math.random()-.5)*.008,
      s:Math.random()*.4+.1
    }));
    nebulas = Array.from({length:5},()=>({
      x:Math.random()*W, y:Math.random()*H,
      r:Math.random()*180+80,
      h:Math.random()*360, a:Math.random()*.18+.04
    }));
  }

  function draw(){
    ctx.clearRect(0,0,W,H);
    nebulas.forEach(n=>{
      const g=ctx.createRadialGradient(n.x,n.y,0,n.x,n.y,n.r);
      g.addColorStop(0,`hsla(${n.h},80%,55%,${n.a})`);
      g.addColorStop(1,'transparent');
      ctx.fillStyle=g; ctx.fillRect(0,0,W,H);
    });
    stars.forEach(st=>{
      st.a+=st.da;
      if(st.a<0||st.a>1) st.da*=-1;
      st.x-=st.s*.15;
      if(st.x<0) st.x=W;
      ctx.beginPath();
      ctx.arc(st.x,st.y,st.r,0,Math.PI*2);
      ctx.fillStyle=`rgba(255,255,255,${st.a})`;
      ctx.fill();
    });
    requestAnimationFrame(draw);
  }

  window.addEventListener('resize',()=>{ resize(); mkStars(); });
  resize(); mkStars(); draw();
})();

/* ════════════════════════════════════════════
   SCREEN SWITCHER
════════════════════════════════════════════ */
function showScreen(id){
  document.querySelectorAll('.screen').forEach(s=>s.classList.remove('active'));
  const el = document.getElementById(id);
  el.classList.add('active');
}

/* ════════════════════════════════════════════
   LOGIN
════════════════════════════════════════════ */
function doLogin(){
  const n = document.getElementById('name-in').value.trim();
  if(!n){ showToast('Please enter your name! 👀'); return; }
  S.name = n;
  if(!S.quizDone){ showScreen('s-quiz'); initQuiz(); }
  else{ showScreen('s-input'); initInputs(); }
  save();
}

/* ════════════════════════════════════════════
   PERSONALITY QUIZ
════════════════════════════════════════════ */
const QUIZ = [
  { q:'When do you feel most productive?', e:'🕐',
    opts:['Early morning (5–9 AM)','Late morning (9–12)','Afternoon vibes','Night owl mode 🦉'] },
  { q:'How often do you check your phone while studying?', e:'📱',
    opts:['Every 5 mins (bad, I know)','Every 30 mins','Only on breaks','I forget phones exist'] },
  { q:'What kills your focus the most?', e:'💀',
    opts:['Social media notifications','Background noise','Random thoughts','Hunger / boredom'] },
  { q:'How many hours of deep work can you do daily?', e:'🔥',
    opts:['Less than 1 hour','1–2 hours','3–4 hours','5+ hours (beast mode)'] }
];

let qIdx=0;
function initQuiz(){
  qIdx=0; S.quizAnswers=[];
  renderQ();
}
function renderQ(){
  const q=QUIZ[qIdx];
  document.getElementById('qemoji').textContent=q.e;
  document.getElementById('qtext').textContent=q.q;
  document.getElementById('qlabel').textContent=`Question ${qIdx+1} of ${QUIZ.length}`;
  document.getElementById('qprog').style.width=`${((qIdx)/QUIZ.length)*100}%`;
  const oc=document.getElementById('qopts');
  oc.innerHTML='';
  q.opts.forEach((o,i)=>{
    const b=document.createElement('button');
    b.className='qopt'; b.textContent=o;
    b.onclick=()=>pickQ(i, b);
    oc.appendChild(b);
  });
  // Animate card in
  const card=document.getElementById('qcard');
  card.style.animation='none';
  card.offsetHeight;
  card.style.animation='popIn .4s cubic-bezier(.34,1.56,.64,1)';
}
function pickQ(i, btn){
  document.querySelectorAll('.qopt').forEach(b=>b.classList.remove('sel'));
  btn.classList.add('sel');
  S.quizAnswers.push(i);
  setTimeout(()=>{
    qIdx++;
    if(qIdx<QUIZ.length){ renderQ(); }
    else{
      S.quizDone=true; save();
      showScreen('s-input'); initInputs();
    }
  },420);
}

/* ════════════════════════════════════════════
   INPUT SLIDERS
════════════════════════════════════════════ */
const INPUTS_CFG = [
  { key:'study',    icon:'📚', title:'Study Hours Today',       desc:'How many hours did you actually study?',      min:0, max:16, step:.5,  unit:'hrs',   def:4  },
  { key:'phone',    icon:'📱', title:'Phone Usage',             desc:'Total time on phone today (hours)',            min:0, max:16, step:.5,  unit:'hrs',   def:3  },
  { key:'social',   icon:'🌐', title:'Social Media Time',       desc:'Time spent on Instagram, YouTube, etc.',      min:0, max:16, step:.5,  unit:'hrs',   def:2  },
  { key:'sleep',    icon:'😴', title:'Sleep Last Night',        desc:'How many hours did you sleep?',               min:0, max:12, step:.5,  unit:'hrs',   def:7  },
  { key:'notifications', icon:'🔔', title:'Notifications Today', desc:'How many notifications did you receive?',   min:0, max:300, step:5,  unit:'notifs',def:50 }
];

let inpIdx=0;
function initInputs(){
  inpIdx=0;
  renderInp();
  renderDots();
}
function renderInp(){
  const c=INPUTS_CFG[inpIdx];
  document.getElementById('inp-icon').textContent=c.icon;
  document.getElementById('inp-title').textContent=c.title;
  document.getElementById('inp-desc').textContent=c.desc;
  const sl=document.getElementById('inp-slider');
  sl.min=c.min; sl.max=c.max; sl.step=c.step;
  sl.value=S.inputs[c.key]!==undefined ? S.inputs[c.key] : c.def;
  document.getElementById('slid-unit').textContent=c.unit;
  onSlide(sl.value);
  // re-trigger animation
  const card=document.getElementById('inp-card');
  card.style.animation='none'; card.offsetHeight;
  card.style.animation='popIn .4s cubic-bezier(.34,1.56,.64,1)';
}
function onSlide(v){
  document.getElementById('slid-val').textContent=v;
}
function nextInp(){
  const val=parseFloat(document.getElementById('inp-slider').value);
  S.inputs[INPUTS_CFG[inpIdx].key]=val;
  // Animate card out
  const card=document.getElementById('inp-card');
  card.style.transform='scale(.9) translateY(-30px)';
  card.style.opacity='0';
  setTimeout(()=>{
    card.style.transform=''; card.style.opacity='';
    inpIdx++;
    if(inpIdx<INPUTS_CFG.length){ renderInp(); renderDots(); }
    else{ save(); callAPI(); }
  },350);
}
function renderDots(){
  const dc=document.getElementById('inp-dots');
  dc.innerHTML='';
  INPUTS_CFG.forEach((_,i)=>{
    const d=document.createElement('div');
    d.className='dot'+(i===inpIdx?' active':i<inpIdx?' done':'');
    dc.appendChild(d);
  });
}

/* ════════════════════════════════════════════
   API CALL
════════════════════════════════════════════ */
function callAPI() {
    // 🔊 Scanning sound start
    sounds.scan.loop = true;
    sounds.scan.play();

    showToast('🧠 Analyzing your focus patterns…');
    const body = {
        study_hours_per_day: S.inputs.study,
        phone_usage_hours: S.inputs.phone,
        social_media_hours: S.inputs.social,
        sleep_hours: S.inputs.sleep,
        notifications: S.inputs.notifications
    };

    fetch('/predict', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) })
        .then(r => r.json())
        .then(d => {
            // 🔇 Scanning sound stop
            sounds.scan.pause();
            sounds.scan.currentTime = 0;

            if (d.error) { showToast('⚠️ ' + d.error); return; }
            
            S.results = d;
            processResults(d);
            showScreen('s-dash');
            showTab('home');
            updateStreak();
            save();

            // 🏆 Level Up sound if good performance
            if (d.productivity > 80) {
                sounds.levelUp.play();
            }

            setTimeout(() => scheduleNotif(d.score), 4000);
        })
        .catch(e => {
            // 🔇 Error aane par bhi sound stop karein
            sounds.scan.pause();
            showToast('Connection error. Please try again.');
            console.error(e);
        });
}

/* ════════════════════════════════════════════
   PROCESS & RENDER RESULTS
════════════════════════════════════════════ */
function processResults(d){
  const {score, risk, productivity, is_focused} = d;

  // XP
  const gainedXP = Math.round(productivity * 5);
  S.xp = (S.xp||0) + gainedXP;
  saveHistory(d);

  // Greeting
  const hour=new Date().getHours();
  const greet=hour<12?'Good Morning ☀️':hour<17?'Good Afternoon 🌤':hour<20?'Good Evening 🌆':'Good Night 🌙';
  document.getElementById('greeting').textContent=`${greet}, ${S.name}! 👋`;

  // Sarcasm
  document.getElementById('sarcasm').textContent=getSarcasm(score, hour);
  document.getElementById('sarcasm').style.borderColor=score>75?'rgba(239,68,68,.4)':score>45?'rgba(245,158,11,.4)':'rgba(16,185,129,.4)';

  // Animate rings
  animRing('rg-dist', score,   score>75?'#ef4444':score>45?'#f59e0b':'#10b981');
  animRing('rg-risk', risk,    risk>75?'#ef4444':risk>45?'#f59e0b':'#10b981');
  animRing('rg-prod', productivity, productivity<40?'#ef4444':productivity<70?'#f59e0b':'#10b981');
  animNum('n-dist', score);
  animNum('n-risk',  risk);
  animNum('n-prod', productivity);

  // Persona
  const persona=getPersona(score, productivity, d.inputs||S.inputs);
  document.getElementById('p-icon').textContent=persona.icon;
  document.getElementById('p-name').textContent=persona.name;
  document.getElementById('p-desc').textContent=persona.desc;

  // Level & XP
  const lv=getLevel(S.xp);
  document.getElementById('lvl-name').textContent=lv.name;
  document.getElementById('lvl-fill').style.width=lv.pct+'%';
  document.getElementById('xp-ct').textContent=S.xp;
  document.getElementById('xp-ct2').textContent=S.xp;
  document.getElementById('xp-max').textContent=lv.max;

  // Drivers
  renderDrivers(d.inputs||S.inputs, score);

  // Optimizer
  renderOptimizer(d.inputs||S.inputs, score, productivity);

  // Quote
  document.getElementById('quote-txt').textContent=getQuote();

  // Profile
  document.getElementById('prof-name').textContent=S.name;
  document.getElementById('prof-persona').textContent=persona.name;

  // Stats
  renderStats(score, productivity, risk);

  // Streak
  document.getElementById('streak-ct').textContent=S.streak;
  document.getElementById('s-big').textContent=S.streak;

  // History & breakdown
  renderHistory();
  renderBreakdown(d.inputs||S.inputs, score);

  // Streaks calendar
  renderCal();

  // Achievements
  renderAch();
}

/* ── Ring animation ── */
function animRing(id, val, color){
  const el=document.getElementById(id);
  el.style.stroke=color;
  const offset=264-(264*(val/100));
  requestAnimationFrame(()=>{ el.style.strokeDashoffset=offset; });
}
function animNum(id, target){
  const el=document.getElementById(id);
  let cur=0; const dur=1200; const start=performance.now();
  function step(now){
    const p=Math.min((now-start)/dur,1);
    el.textContent=Math.round(cur+(target-cur)*easeOut(p));
    if(p<1) requestAnimationFrame(step);
  }
  requestAnimationFrame(step);
}
function easeOut(t){ return 1-Math.pow(1-t,3); }

/* ════════════════════════════════════════════
   CONTENT GENERATORS
════════════════════════════════════════════ */
function getSarcasm(score, hour){
  if(hour>=23||hour<5){
    const lateArr=['Sleep is optional, regret is guaranteed. 😭','Why are you awake? Your productivity isn\'t. 🌙','Your brain needs rest, not a late-night doom scroll.','2 AM productivity? Bold strategy. Let us know how it goes.'];
    return rnd(lateArr);
  }
  if(score>75){
    return rnd(['Focus gaya tel lene 😭','Productivity just left the chat.','Phone se rishta thoda kam karo. 📱','Your phone has more screen time than your textbook.','Distraction level: Olympic gold medalist.','Your attention span just filed for bankruptcy.']);
  }
  if(score>45){
    return rnd(['You\'re almost productive. Almost. 🤏','Some focus detected… very little.','Mediocre effort detected. Could be worse. Could be better.','The Wi-Fi is testing you and you\'re losing.','Half-focus is like half a parachute. 🪂']);
  }
  return rnd(['This is suspiciously impressive. 👀','Look at you getting things done! 🚀','Productivity unlocked. Who are you?','Your focus game is on another level today.','Deep work mode: ACTIVATED. We stan. 🔥']);
}

function getPersona(score, prod, inp){
  const ph=inp.phone||S.inputs.phone;
  const notif=inp.notifications||S.inputs.notifications;
  if(prod>78) return {icon:'🥷',name:'Deep Work Ninja',desc:'You enter flow states effortlessly. Elite.'};
  if(ph>7)    return {icon:'📱',name:'Digital Drifter',desc:'Glued to the screen like it owes you money.'};
  if(notif>140)return {icon:'⚡',name:'Chronic Multitasker',desc:'You juggle 10 things and finish 2. Progress.'};
  return           {icon:'⚖️',name:'Balanced Performer',desc:'Solid effort. A few tweaks and you\'re elite.'};
}

function getLevel(xp){
  if(xp<500)  return {name:'Beginner',  pct:Math.round((xp/500)*100), max:500};
  if(xp<2000) return {name:'Builder',   pct:Math.round(((xp-500)/1500)*100), max:2000};
  return              {name:'Master',   pct:Math.round(Math.min(((xp-2000)/3000)*100,100)), max:5000};
}

function renderDrivers(inp, score){
  const cont=document.getElementById('drivers');
  const drivers=[];
  const ph=inp.phone||S.inputs.phone;
  const sm=inp.social||S.inputs.social;
  const sl=inp.sleep||S.inputs.sleep;
  const nt=inp.notifications||S.inputs.notifications;
  const st=inp.study||S.inputs.study;

  if(ph>5)  drivers.push({icon:'📱',label:'High Phone Usage', pct:Math.min(100,Math.round(ph/16*100)), color:'#ef4444'});
  if(sm>3)  drivers.push({icon:'📸',label:'Social Media',     pct:Math.min(100,Math.round(sm/16*100)), color:'#ec4899'});
  if(sl<6)  drivers.push({icon:'😴',label:'Sleep Deficit',    pct:Math.min(100,Math.round((6-sl)/6*100)), color:'#f59e0b'});
  if(nt>80) drivers.push({icon:'🔔',label:'Notification Storm',pct:Math.min(100,Math.round(nt/200*100)), color:'#8b5cf6'});
  if(st<3)  drivers.push({icon:'📚',label:'Low Study Time',   pct:Math.min(100,Math.round((3-st)/3*100)), color:'#06b6d4'});
  if(!drivers.length) drivers.push({icon:'✅',label:'No major distractions!',pct:5,color:'#10b981'});

  cont.innerHTML=drivers.map(d=>`
    <div class="drv">
      <div class="drv-lft">${d.icon} ${d.label}</div>
      <div class="drv-bw"><div class="drv-bf" style="width:0%;background:${d.color}" data-w="${d.pct}"></div></div>
      <div class="drv-pct">${d.pct}%</div>
    </div>`).join('');
  // Animate bars
  setTimeout(()=>{
    cont.querySelectorAll('.drv-bf').forEach(b=>{ b.style.width=b.dataset.w+'%'; });
  },200);
}

function renderOptimizer(inp, score, prod){
  const cont=document.getElementById('optimizer');
  const tips=[];
  const sm=inp.social||S.inputs.social;
  const ph=inp.phone||S.inputs.phone;
  const sl=inp.sleep||S.inputs.sleep;
  const nt=inp.notifications||S.inputs.notifications;
  const st=inp.study||S.inputs.study;

  if(sm>1) tips.push(`📉 Cut social media by 1hr → +${Math.round(sm*4)}% productivity boost`);
  if(ph>3) tips.push(`📵 Phone-free study blocks → reduces distraction score by ~${Math.round(ph*3)} pts`);
  if(sl<7) tips.push(`🛌 Sleep 1hr more → clears mental fog, +${Math.round((7-sl)*8)}% focus`);
  if(nt>50)tips.push(`🔕 Silence notifications during study → recover ${Math.round(nt*.5)} min of deep work`);
  if(st<5) tips.push(`📖 Add 1hr of study → +${Math.round(1*2*5)} productivity XP gained`);
  if(!tips.length) tips.push('🏆 You\'re optimized! Keep this up for streak bonuses.');

  cont.innerHTML=tips.map(t=>`<div class="tip"><span class="tip-ic">💡</span><span>${t}</span></div>`).join('');
}

const QUOTES=[
  '"Deep work is the superpower of the 21st century." — Cal Newport',
  '"Focus is a matter of deciding what things you\'re NOT going to do." — John Carmack',
  '"Energy, not time, is the fundamental currency of high performance."',
  '"The successful warrior is the average person with laser-like focus." — Bruce Lee',
  '"Concentrate all your thoughts upon the work at hand." — Alexander Graham Bell',
  '"Where focus goes, energy flows." — Tony Robbins',
  '"Do one thing at a time, and do it well."',
  '"Your future is created by what you do today, not tomorrow."'
];
function getQuote(){ return rnd(QUOTES); }

/* ════════════════════════════════════════════
   HISTORY
════════════════════════════════════════════ */
function saveHistory(d){
  const entry={
    date: new Date().toLocaleDateString('en-IN',{day:'numeric',month:'short'}),
    score: d.score, risk: d.risk, productivity: d.productivity,
    persona: getPersona(d.score, d.productivity, d.inputs||S.inputs).name
  };
  S.history = [entry, ...(S.history||[])].slice(0,30);
}

function renderHistory(){
  const cont=document.getElementById('hist-list');
  if(!S.history||!S.history.length){
    cont.innerHTML='<div class="muted" style="font-size:.85rem;padding:8px 0">No history yet. Run your first analysis!</div>';
    return;
  }
  cont.innerHTML=S.history.slice(0,10).map(h=>{
    const cls=h.score>75?'hi':h.score>45?'md':'lo';
    return `<div class="hitem">
      <div class="hdot ${cls}"></div>
      <div class="hinfo">
        <div class="hdate">${h.date}</div>
        <div class="hscore">Score: ${h.score} · Risk: ${h.risk}%</div>
        <div class="hpers">${h.persona}</div>
      </div>
      <div style="font-family:var(--fd);font-size:.9rem;color:${h.productivity>70?'#10b981':h.productivity>45?'#f59e0b':'#ef4444'}">${h.productivity}%</div>
    </div>`;
  }).join('');
}

function renderBreakdown(inp, score){
  const cont=document.getElementById('breakdown');
  const ph=inp.phone||S.inputs.phone;
  const sm=inp.social||S.inputs.social;
  const nt=inp.notifications||S.inputs.notifications;
  const st=inp.study||S.inputs.study;
  const sl=inp.sleep||S.inputs.sleep;

  const bars=[
    {label:'Phone',   val:Math.min(100,Math.round(ph/16*100)),  color:'#ef4444'},
    {label:'Social',  val:Math.min(100,Math.round(sm/16*100)),  color:'#ec4899'},
    {label:'Notifs',  val:Math.min(100,Math.round(nt/200*100)), color:'#8b5cf6'},
    {label:'Study',   val:Math.min(100,Math.round(st/16*100)),  color:'#10b981'},
    {label:'Sleep',   val:Math.min(100,Math.round(sl/12*100)),  color:'#3b82f6'}
  ];
  cont.innerHTML=bars.map(b=>`
    <div class="bki">
      <div class="bkh"><span>${b.label}</span><span>${b.val}%</span></div>
      <div class="bkbg"><div class="bkf" style="width:0%;background:${b.color};color:${b.color}" data-w="${b.val}"></div></div>
    </div>`).join('');
  setTimeout(()=>{
    cont.querySelectorAll('.bkf').forEach(b=>{ b.style.width=b.dataset.w+'%'; });
  },200);
}

/* ════════════════════════════════════════════
   STREAKS & CALENDAR
════════════════════════════════════════════ */
function updateStreak(){
  const today=new Date().toDateString();
  const last=S.lastDay||'';
  if(last===today) return;
  const yesterday=new Date(Date.now()-86400000).toDateString();
  if(last===yesterday){ S.streak=(S.streak||0)+1; }
  else{ S.streak=1; }
  S.lastDay=today;
  S.streakDays=S.streakDays||[];
  S.streakDays.push(today);
  save();
}

function renderCal(){
  const cont=document.getElementById('s-cal');
  const today=new Date();
  const year=today.getFullYear();
  const month=today.getMonth();
  const daysInMonth=new Date(year,month+1,0).getDate();
  const firstDay=new Date(year,month,1).getDay();
  const done=new Set(S.streakDays||[]);
  let html='';
  for(let i=0;i<firstDay;i++) html+=`<div class="cday"></div>`;
  for(let d=1;d<=daysInMonth;d++){
    const dt=new Date(year,month,d).toDateString();
    const isToday=d===today.getDate();
    const isDone=done.has(dt);
    html+=`<div class="cday${isDone?' done':''}${isToday?' today':''}">${d}</div>`;
  }
  cont.innerHTML=html;
}

/* ════════════════════════════════════════════
   ACHIEVEMENTS
════════════════════════════════════════════ */
const ACHS=[
  {icon:'🚀',name:'First Launch',     desc:'Completed first analysis',    check:()=>S.history&&S.history.length>=1},
  {icon:'🔥',name:'3-Day Streak',     desc:'3 days in a row',             check:()=>(S.streak||0)>=3},
  {icon:'💎',name:'Focus Diamond',    desc:'Productivity > 80%',          check:()=>S.results&&S.results.productivity>80},
  {icon:'🧘',name:'Zen Mode',         desc:'Distraction score < 20',      check:()=>S.results&&S.results.score<20},
  {icon:'⚡',name:'500 XP Club',      desc:'Earned 500 XP',               check:()=>(S.xp||0)>=500},
  {icon:'🏆',name:'Week Warrior',     desc:'7-day streak',                check:()=>(S.streak||0)>=7},
];
function renderAch(){
  document.getElementById('ach-list').innerHTML=ACHS.map(a=>{
    const on=a.check();
    return `<div class="ach ${on?'on':'off'}">
      <div class="ach-ic">${a.icon}</div>
      <div><div class="ach-nm">${a.name} ${on?'✅':''}</div><div class="ach-ds">${a.desc}</div></div>
    </div>`;
  }).join('');
}

/* ════════════════════════════════════════════
   STATS
════════════════════════════════════════════ */
function renderStats(score, prod, risk){
  document.getElementById('prof-stats').innerHTML=`
    <div class="st-row"><span>Total Analyses</span><span class="st-v">${S.history?S.history.length:1}</span></div>
    <div class="st-row"><span>Current Score</span><span class="st-v">${score}</span></div>
    <div class="st-row"><span>Productivity</span><span class="st-v">${prod}%</span></div>
    <div class="st-row"><span>Risk Level</span><span class="st-v">${risk}%</span></div>
    <div class="st-row"><span>Total XP</span><span class="st-v">${S.xp||0}</span></div>
    <div class="st-row"><span>Best Streak</span><span class="st-v">${S.streak||0} days</span></div>
  `;
}

/* ════════════════════════════════════════════
   TABS
════════════════════════════════════════════ */
function showTab(name){
  document.querySelectorAll('.tab').forEach(t=>t.classList.remove('active'));
  document.querySelectorAll('.nb').forEach(b=>b.classList.remove('active'));
  document.getElementById('tab-'+name).classList.add('active');
  document.getElementById('nb-'+name).classList.add('active');
}

/* ════════════════════════════════════════════
   TOAST
════════════════════════════════════════════ */
function showToast(msg, dur=3200){
  const t = document.getElementById('toast');
  if(!t) return;
  
  // Play sound
  sounds.pop.currentTime = 0;
  sounds.pop.play();

  t.textContent = msg;
  t.classList.add('show');
  setTimeout(() => t.classList.remove('show'), dur);
}

/* ════════════════════════════════════════════
   SARCASTIC NOTIFICATIONS
════════════════════════════════════════════ */
const NOTIFS=[
  'Hey, your phone misses you. Actually no, it doesn\'t. 📵',
  'Your study notes won\'t read themselves. Or will they? 🤔',
  'Notification from: Reality. You have work to do.',
  'Focus check: still alive? Put the phone down.',
  'Your productivity just texted. It\'s lonely.',
  'Average Indian student scrolls 3hrs/day. Don\'t be average.',
  'Your future self is watching. Don\'t disappoint them. 👁',
];
function scheduleNotif(score){
  if(!document.getElementById('notif-tog').checked) return;
  if(score>50) showToast('🔔 '+rnd(NOTIFS));
}

/* ════════════════════════════════════════════
   THEME
════════════════════════════════════════════ */
function toggleTheme(){
  S.darkMode=!S.darkMode;
  document.body.classList.toggle('light',!S.darkMode);
  document.getElementById('theme-toggle' ) && (document.querySelector('.ico-btn').textContent=S.darkMode?'🌙':'☀️');
  const tog=document.getElementById('dark-tog');
  if(tog) tog.checked=S.darkMode;
  save();
}
function toggleThemeCheck(el){
  S.darkMode=el.checked;
  document.body.classList.toggle('light',!S.darkMode);
  save();
}

/* ════════════════════════════════════════════
   RESET
════════════════════════════════════════════ */
function rerun(){
  inpIdx=0; S.inputs={study:4,phone:3,social:2,sleep:7,notifications:50};
  showScreen('s-input'); initInputs();
}
function clearAll(){
  if(!confirm('Reset all data? This cannot be undone.')) return;
  localStorage.removeItem('diq');
  location.reload();
}

/* ════════════════════════════════════════════
   UTILS
════════════════════════════════════════════ */
function rnd(arr){ return arr[Math.floor(Math.random()*arr.length)]; }

/* ════════════════════════════════════════════
   INIT
════════════════════════════════════════════ */
window.addEventListener('DOMContentLoaded', () => {
    load();
    if (S.darkMode === false) document.body.classList.add('light');
    if (S.name) {
        document.getElementById('name-in').value = S.name;
    }

    // Enter key on login
    document.getElementById('name-in').addEventListener('keydown', e => {
        if (e.key === 'Enter') doLogin();
    });

    // If returning user with results, go straight to dash
    if (S.name && S.results && S.quizDone) {
        document.getElementById('greeting').textContent = `Welcome back, ${S.name}! 👋`;
        showScreen('s-dash');
        processResults(S.results);
        showTab('home');
    }

    // --- TRAP BUTTON LOGIC (Sabke liye kaam karega) ---
    const trapBtn = document.getElementById('trap-btn');
    if (trapBtn) {
        trapBtn.addEventListener('click', () => {
            sounds.pop.currentTime = 0;
            sounds.pop.play();

            document.body.classList.add('trap-flash');
            setTimeout(() => document.body.classList.remove('trap-flash'), 500);

            const msg = trapRoasts[Math.floor(Math.random() * trapRoasts.length)];
            showToast(msg);
        });
    }
}); 
// 1. Sarcastic Messages ka Database
const sarcasticVault = {
    high: ["Focus gaya tel lene 😭", "Productivity just left the chat.", "इतना scrolling? Dedication galat jagah pe hai.", "Phone se relationship strong hai… future se weak."],
    medium: ["You’re almost productive. Almost.", "Half focus, half nonsense. Balanced life?", "Scrolling kam, kaam thoda zyada?", "Potential hai… use kab karoge?"],
    low: ["Who are you and why are you so productive?", "Suspiciously impressive. Character development!", "Focus level: main character energy.", "Is this… discipline? 😳"],
    random: ["ब्रेक लिया था या retirement?", "Motivation buffering… please wait.", "फोन रखो. Future उठाओ.", "काम pending hai, attitude full hai 😭"]
};

/* ════════════════════════════════════════════
    SMART SARCASTIC NOTIFICATIONS
   ════════════════════════════════════════════ */

/* ════════════════════════════════════════════
   SMART SARCASTIC NOTIFICATIONS
   ════════════════════════════════════════════ */

function popSarcasticNotif() {
    // Only roast if the user is logged in and the dashboard is active
    const dashActive = document.getElementById('s-dash').classList.contains('active');
    if (!S.name || !S.quizDone || !dashActive) return;

    const toast = document.getElementById('toast');
    if(!toast) return;

    // Determine roast category based on the latest distraction score
    let type = 'random';
    if (S.results) {
        const score = S.results.score;
        type = score > 75 ? 'high' : score > 45 ? 'medium' : 'low';
    }

    const messages = sarcasticVault[type] || sarcasticVault.random;
    const msg = messages[Math.floor(Math.random() * messages.length)];

    // Severity-based accent colors
    const colors = { high: "#ef4444", medium: "#f59e0b", low: "#10b981", random: "#8b5cf6" };
    const color = colors[type] || colors.random;

    // Audio cue
    sounds.pop.currentTime = 0;
    sounds.pop.play();

    toast.innerText = "🔔 " + msg;
    toast.style.borderLeft = `6px solid ${color}`;
    toast.classList.add('show');

    setTimeout(() => toast.classList.remove('show'), 4000);
}

// Start the roast engine
// Set to 20s to balance humor without being annoying
setInterval(popSarcasticNotif, 20000);

/* ════════════════════════════════════════════
   DEBUG & LOGS
   ════════════════════════════════════════════ */
console.log("🚀 DistractIQ Engine: Active & Ready to Roast.");