pulse/index.html at main · satoshi891102/pulse · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Pulse — Crypto Sentiment Dashboard</title>
<style>
*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0a0a0a;--card:#111;--border:#222;--text:#e0e0e0;--dim:#666;--accent:#00d4ff}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;min-height:100vh;overflow-x:hidden}
.glow-overlay{position:fixed;top:0;left:0;right:0;bottom:0;pointer-events:none;transition:background 2s ease;z-index:0}
.container{max-width:900px;margin:0 auto;padding:24px 16px;position:relative;z-index:1}
header{text-align:center;margin-bottom:32px}
header h1{font-size:2rem;font-weight:700;letter-spacing:2px}
header h1 span{color:var(--accent)}
.subtitle{color:var(--dim);font-size:.85rem;margin-top:4px}
.refresh-info{color:var(--dim);font-size:.75rem;margin-top:8px}

/* Gauge */
.gauge-section{text-align:center;margin-bottom:36px}
.gauge-wrap{position:relative;width:280px;height:155px;margin:0 auto}
.gauge-bg,.gauge-fill{position:absolute;bottom:0;left:0;width:280px;height:140px}
svg.gauge-svg{width:280px;height:155px}
.gauge-value{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);font-size:3rem;font-weight:800;transition:color .5s}
.gauge-label{font-size:1.1rem;font-weight:600;margin-top:8px;transition:color .5s}
.mood-text{color:var(--dim);font-size:.9rem;margin-top:4px;font-style:italic}

/* Sparkline */
.sparkline-section{text-align:center;margin-bottom:32px}
.sparkline-section h3{font-size:.85rem;color:var(--dim);margin-bottom:8px;text-transform:uppercase;letter-spacing:1px}
svg.sparkline{width:220px;height:50px}

/* Prices */
.prices{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:32px}
.price-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;text-align:center;transition:border-color .5s}
.price-card:hover{border-color:#333}
.price-symbol{font-size:.8rem;color:var(--dim);text-transform:uppercase;letter-spacing:1px;margin-bottom:4px}
.price-value{font-size:1.5rem;font-weight:700;transition:color .3s}
.price-change{font-size:.85rem;margin-top:4px;font-weight:600}
.price-change.up{color:#00e676}
.price-change.down{color:#ff1744}

/* Trending */
.trending-section h3{font-size:.85rem;color:var(--dim);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}
.trending-list{display:grid;gap:8px}
.trending-item{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;transition:border-color .3s}
.trending-item:hover{border-color:#333}
.trending-left{display:flex;align-items:center;gap:10px}
.trending-img{width:28px;height:28px;border-radius:50%;background:#222}
.trending-name{font-weight:600;font-size:.9rem}
.trending-pair{color:var(--dim);font-size:.75rem}
.trending-right{text-align:right}
.trending-price{font-weight:600;font-size:.9rem}
.trending-vol{color:var(--dim);font-size:.75rem}

footer{text-align:center;color:var(--dim);font-size:.7rem;margin-top:40px;padding-bottom:20px}

@media(max-width:600px){
  .prices{grid-template-columns:1fr}
  .gauge-wrap{width:220px;height:125px}
  svg.gauge-svg{width:220px;height:125px}
  .gauge-value{font-size:2.2rem}
  header h1{font-size:1.5rem}
}

@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .4s ease}
.loading{color:var(--dim);text-align:center;padding:20px}
</style>
</head>
<body>
<div class="glow-overlay" id="glow"></div>
<div class="container">
  <header>
    <h1><span>◉</span> PULSE</h1>
    <div class="subtitle">Real-Time Crypto Sentiment</div>
    <div class="refresh-info" id="refresh-info">Loading...</div>
  </header>

  <section class="gauge-section">
    <div class="gauge-wrap">
      <svg class="gauge-svg" viewBox="0 0 280 155">
        <path d="M20,140 A120,120 0 0,1 260,140" fill="none" stroke="#1a1a1a" stroke-width="18" stroke-linecap="round"/>
        <path id="gauge-arc" d="M20,140 A120,120 0 0,1 260,140" fill="none" stroke="#333" stroke-width="18" stroke-linecap="round" stroke-dasharray="0 377" style="transition:stroke-dasharray 1.5s ease,stroke 1s ease"/>
      </svg>
      <div class="gauge-value" id="gauge-value">--</div>
    </div>
    <div class="gauge-label" id="gauge-label">Loading...</div>
    <div class="mood-text" id="mood-text"></div>
  </section>

  <section class="sparkline-section">
    <h3>7-Day Fear &amp; Greed</h3>
    <svg class="sparkline" id="sparkline" viewBox="0 0 220 50"></svg>
  </section>

  <section class="prices" id="prices">
    <div class="price-card"><div class="price-symbol">BTC</div><div class="price-value">--</div><div class="price-change">--</div></div>
    <div class="price-card"><div class="price-symbol">ETH</div><div class="price-value">--</div><div class="price-change">--</div></div>
    <div class="price-card"><div class="price-symbol">SOL</div><div class="price-value">--</div><div class="price-change">--</div></div>
  </section>

  <section class="trending-section">
    <h3>Trending on Solana</h3>
    <div class="trending-list" id="trending"><div class="loading">Loading trending pairs...</div></div>
  </section>

  <footer>PULSE — Data from CoinGecko, Alternative.me, DexScreener — Not financial advice</footer>
</div>

<script>
const COINGECKO='https://api.coingecko.com/api/v3/simple/price?ids=solana,bitcoin,ethereum&vs_currencies=usd&include_24hr_change=true';
const FNG='https://api.alternative.me/fng/';
const FNG7='https://api.alternative.me/fng/?limit=7';
const DEXSCREENER='https://api.dexscreener.com/latest/dex/tokens/So11111111111111111111111111111111111111112';

function fngColor(v){
  if(v<=25)return'#ff1744';
  if(v<=45)return'#ff9100';
  if(v<=55)return'#ffd600';
  if(v<=75)return'#76ff03';
  return'#00e676';
}

function moodText(v,label){
  if(v<=20)return'Maximum pain. Smart money accumulates here.';
  if(v<=35)return'Fear in the market. Historically a good entry zone.';
  if(v<=45)return'Slight unease. Watch for opportunities.';
  if(v<=55)return'Market is indecisive. Could go either way.';
  if(v<=70)return'Optimism rising. Stay disciplined.';
  if(v<=85)return'Getting greedy. Consider taking profits.';
  return'Peak euphoria. This is where tops form.';
}

function setGauge(value){
  const max=377;
  const fill=value/100*max;
  const arc=document.getElementById('gauge-arc');
  const col=fngColor(value);
  arc.setAttribute('stroke-dasharray',fill+' '+max);
  arc.setAttribute('stroke',col);
  document.getElementById('gauge-value').textContent=value;
  document.getElementById('gauge-value').style.color=col;
}

function setGlow(value){
  const col=fngColor(value);
  document.getElementById('glow').style.background='radial-gradient(ellipse at 50% 20%,'+col+'08 0%,transparent 70%)';
}

function fmt(n){
  if(n>=1e6)return'$'+(n/1e6).toFixed(2)+'M';
  if(n>=1e3)return'$'+(n/1e3).toFixed(1)+'K';
  if(n>=1)return'$'+n.toFixed(2);
  if(n>=0.001)return'$'+n.toFixed(4);
  return'$'+n.toFixed(6);
}

function fmtBig(n){
  if(n>=1e9)return'$'+(n/1e9).toFixed(2)+'B';
  if(n>=1e6)return'$'+(n/1e6).toFixed(1)+'M';
  if(n>=1)return'$'+n.toFixed(n>=100?0:2).replace(/\B(?=(\d{3})+(?!\d))/g,',');
  return'$'+n.toFixed(4);
}

async function fetchFNG(){
  try{
    const [r1,r2]=await Promise.all([fetch(FNG),fetch(FNG7)]);
    const d1=await r1.json(), d2=await r2.json();
    const val=parseInt(d1.data[0].value);
    const label=d1.data[0].value_classification;
    setGauge(val);
    setGlow(val);
    document.getElementById('gauge-label').textContent=label;
    document.getElementById('gauge-label').style.color=fngColor(val);
    document.getElementById('mood-text').textContent=moodText(val,label);
    // sparkline
    const pts=d2.data.map(d=>parseInt(d.value)).reverse();
    const svg=document.getElementById('sparkline');
    const minV=Math.min(...pts)-5,maxV=Math.max(...pts)+5,range=maxV-minV||1;
    const coords=pts.map((v,i)=>{
      const x=i/(pts.length-1)*200+10;
      const y=45-(v-minV)/range*40;
      return x+','+y;
    });
    const col=fngColor(val);
    svg.innerHTML='<polyline points="'+coords.join(' ')+'" fill="none" stroke="'+col+'" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>'+
      pts.map((v,i)=>{
        const x=i/(pts.length-1)*200+10;
        const y=45-(v-minV)/range*40;
        return'<circle cx="'+x+'" cy="'+y+'" r="3" fill="'+col+'"/>';
      }).join('');
  }catch(e){console.error('FNG error',e)}
}

async function fetchPrices(){
  try{
    const r=await fetch(COINGECKO);
    const d=await r.json();
    const coins=[
      {id:'bitcoin',sym:'BTC'},
      {id:'ethereum',sym:'ETH'},
      {id:'solana',sym:'SOL'}
    ];
    const el=document.getElementById('prices');
    el.innerHTML=coins.map(c=>{
      const p=d[c.id];
      if(!p)return'<div class="price-card"><div class="price-symbol">'+c.sym+'</div><div class="price-value">--</div><div class="price-change">--</div></div>';
      const price=p.usd;
      const chg=p.usd_24h_change||0;
      const up=chg>=0;
      return'<div class="price-card fade-in"><div class="price-symbol">'+c.sym+'</div><div class="price-value">'+fmtBig(price)+'</div><div class="price-change '+(up?'up':'down')+'">'+(up?'▲':'▼')+' '+Math.abs(chg).toFixed(2)+'%</div></div>';
    }).join('');
  }catch(e){console.error('Price error',e)}
}

async function fetchTrending(){
  try{
    const r=await fetch(DEXSCREENER);
    const d=await r.json();
    if(!d.pairs)return;
    const sorted=d.pairs.filter(p=>p.liquidity&&p.liquidity.usd>10000).sort((a,b)=>(b.volume?.h24||0)-(a.volume?.h24||0)).slice(0,5);
    const el=document.getElementById('trending');
    if(!sorted.length){el.innerHTML='<div class="loading">No pairs found</div>';return;}
    el.innerHTML=sorted.map(p=>{
      const img=p.info&&p.info.imageUrl?'<img class="trending-img" src="'+p.info.imageUrl+'" onerror="this.style.display=\'none\'"/>':'<div class="trending-img"></div>';
      const name=p.baseToken.name.length>20?p.baseToken.name.slice(0,20)+'…':p.baseToken.name;
      return'<div class="trending-item fade-in"><div class="trending-left">'+img+'<div><div class="trending-name">'+name+'</div><div class="trending-pair">'+p.baseToken.symbol+'/'+p.quoteToken.symbol+'</div></div></div><div class="trending-right"><div class="trending-price">'+fmt(parseFloat(p.priceUsd||0))+'</div><div class="trending-vol">Vol: '+fmtBig(p.volume?.h24||0)+'</div></div></div>';
    }).join('');
  }catch(e){console.error('Trending error',e)}
}

async function refresh(){
  await Promise.all([fetchFNG(),fetchPrices(),fetchTrending()]);
  document.getElementById('refresh-info').textContent='Updated '+new Date().toLocaleTimeString()+' · Refreshes every 60s';
}

refresh();
setInterval(refresh,60000);
</script>
</body>
</html>