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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>CodeCraft AI — Advanced Coding Assistant</title>
<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Syne:wght@400;600;700;800&family=Outfit:wght@300;400;500;600&display=swap" rel="stylesheet">
<style>
:root{
--bg:#080b10;--bg2:#0d1117;--surface:#0f1520;--surface2:#141c27;--surface3:#1a2233;
--border:#1e2d42;--border2:#243447;
--accent:#38bdf8;--adim:rgba(56,189,248,.12);
--a2:#818cf8;--a3:#34d399;--warn:#fb923c;--danger:#f87171;
--text:#cdd5e0;--text2:#8899aa;--text3:#4a5a6e;
--mono:'JetBrains Mono',monospace;
--sans:'Outfit',sans-serif;
--display:'Syne','Outfit',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;}
html,body{height:100%;overflow:hidden;}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:14px;display:flex;flex-direction:column;}
/* ── TOPBAR ── */
#topbar{height:52px;background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 1.25rem;gap:.75rem;flex-shrink:0;z-index:50;}
.logo{font-family:var(--display);font-size:1.1rem;font-weight:800;letter-spacing:-.02em;display:flex;align-items:center;gap:8px;white-space:nowrap;}
.logo-badge{background:linear-gradient(135deg,#38bdf8,#818cf8);border-radius:8px;width:28px;height:28px;display:flex;align-items:center;justify-content:center;font-size:13px;}
.logo em{font-style:normal;color:var(--accent);}
.mode-tabs{display:flex;gap:3px;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:3px;margin-left:.5rem;}
.mtab{padding:5px 14px;border-radius:7px;font-size:.78rem;font-weight:600;cursor:pointer;transition:all .18s;color:var(--text2);border:none;background:transparent;white-space:nowrap;font-family:var(--sans);}
.mtab.active{background:var(--adim);color:var(--accent);border:1px solid rgba(56,189,248,.25);}
.mtab:hover:not(.active){color:var(--text);background:var(--surface2);}
.spacer{flex:1;}
.lang-pills{display:flex;gap:5px;}
.lpill{font-family:var(--mono);font-size:.68rem;padding:3px 9px;border-radius:20px;border:1px solid var(--border);color:var(--text3);cursor:pointer;transition:all .15s;background:transparent;}
.lpill:hover{border-color:var(--accent);color:var(--accent);}
.lpill.sel{border-color:var(--accent);color:var(--accent);background:var(--adim);}
#sidebarToggle{width:28px;height:28px;background:var(--surface2);border:1px solid var(--border);border-radius:7px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text2);font-size:.85rem;transition:all .15s;flex-shrink:0;}
#sidebarToggle:hover{border-color:var(--accent);color:var(--accent);}
/* ── MAIN ── */
#main{flex:1;display:flex;overflow:hidden;}
/* ── SIDEBAR ── */
#sidebar{width:255px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;flex-shrink:0;transition:width .3s;}
#sidebar.collapsed{width:0;}
.sb-section{padding:.75rem .9rem;border-bottom:1px solid var(--border);}
.sb-title{font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text3);margin-bottom:.6rem;display:flex;align-items:center;justify-content:space-between;}
.new-chat-btn{width:100%;padding:.55rem;background:var(--adim);border:1px solid rgba(56,189,248,.25);border-radius:8px;color:var(--accent);font-family:var(--sans);font-size:.78rem;font-weight:600;cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center;gap:6px;}
.new-chat-btn:hover{background:rgba(56,189,248,.18);}
#historyList{display:flex;flex-direction:column;gap:3px;overflow-y:auto;flex:1;padding:.6rem .75rem;}
.hitem{padding:.55rem .7rem;border-radius:8px;cursor:pointer;transition:all .15s;border:1px solid transparent;font-size:.78rem;color:var(--text2);line-height:1.4;display:flex;align-items:flex-start;gap:7px;}
.hitem:hover{background:var(--surface2);color:var(--text);}
.hitem.active{background:var(--adim);border-color:rgba(56,189,248,.2);color:var(--accent);}
.hitem .hi{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;}
.hitem .hl{font-family:var(--mono);font-size:.6rem;background:var(--surface3);border-radius:4px;padding:1px 4px;flex-shrink:0;}
/* ── CENTER ── */
#center{flex:1;display:flex;flex-direction:column;overflow:hidden;}
/* ── CHAT PANE ── */
#chatPane{flex:1;display:flex;flex-direction:column;overflow:hidden;}
#chatMessages{flex:1;overflow-y:auto;padding:1.5rem 1.75rem;display:flex;flex-direction:column;gap:1.25rem;}
/* welcome */
.welcome{padding:2rem 0 1.5rem;text-align:center;}
.welcome h2{font-family:var(--display);font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;letter-spacing:-.03em;line-height:1.2;margin-bottom:.4rem;}
.welcome h2 em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--a2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.welcome p{color:var(--text2);font-size:.86rem;}
.sug-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:9px;margin-top:1.25rem;}
.sug{padding:.8rem .9rem;background:var(--surface);border:1px solid var(--border);border-radius:11px;cursor:pointer;transition:all .18s;font-size:.8rem;line-height:1.5;color:var(--text2);}
.sug:hover{border-color:var(--accent);color:var(--text);background:var(--adim);}
.sug .si{font-size:1.2rem;margin-bottom:4px;}
.sug .st{font-weight:600;font-size:.83rem;color:var(--text);margin-bottom:2px;}
/* messages */
.msg{display:flex;gap:11px;animation:msgIn .25s ease;max-width:100%;}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.msg.user{flex-direction:row-reverse;}
.mavatar{width:32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:.95rem;flex-shrink:0;}
.msg.ai .mavatar{background:linear-gradient(135deg,var(--accent),var(--a2));}
.msg.user .mavatar{background:var(--surface3);border:1px solid var(--border);}
.mbody{flex:1;min-width:0;}
.mname{font-size:.68rem;font-weight:600;color:var(--text3);margin-bottom:4px;text-transform:uppercase;letter-spacing:.06em;}
.msg.user .mname{text-align:right;}
.mbubble{padding:.8rem 1rem;border-radius:11px;line-height:1.65;font-size:.875rem;word-break:break-word;}
.msg.ai .mbubble{background:var(--surface);border:1px solid var(--border);border-top-left-radius:3px;}
.msg.user .mbubble{background:var(--adim);border:1px solid rgba(56,189,248,.2);border-top-right-radius:3px;color:var(--text);}
.mbubble p{margin-bottom:.45rem;}
.mbubble p:last-child{margin-bottom:0;}
.mbubble ul,.mbubble ol{padding-left:1.2rem;margin:.35rem 0;}
.mbubble li{margin-bottom:.2rem;}
.mbubble strong{color:var(--text);font-weight:600;}
.mbubble code{font-family:var(--mono);font-size:.78rem;background:var(--surface3);padding:1px 5px;border-radius:4px;color:var(--accent);}
.mbubble pre{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:.85rem;overflow-x:auto;margin:.65rem 0;font-family:var(--mono);font-size:.78rem;line-height:1.6;position:relative;}
.pre-hdr{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem;font-size:.68rem;color:var(--text3);}
.cpinline{background:var(--surface2);border:1px solid var(--border);border-radius:5px;padding:2px 7px;cursor:pointer;color:var(--text2);font-family:var(--sans);font-size:.68rem;transition:all .15s;}
.cpinline:hover{border-color:var(--a3);color:var(--a3);}
.mattach{display:flex;align-items:center;gap:7px;padding:.45rem .7rem;background:var(--surface3);border:1px solid var(--border);border-radius:7px;margin-bottom:5px;font-size:.76rem;color:var(--text2);}
/* typing */
.typing{display:flex;gap:4px;align-items:center;padding:4px 0;}
.tdot{width:6px;height:6px;background:var(--accent);border-radius:50%;animation:bounce 1.2s infinite;opacity:.7;}
.tdot:nth-child(2){animation-delay:.2s;}
.tdot:nth-child(3){animation-delay:.4s;}
@keyframes bounce{0%,60%,100%{transform:translateY(0)}30%{transform:translateY(-5px)}}
/* ── INPUT BAR ── */
#inputBar{border-top:1px solid var(--border);background:var(--bg2);padding:.85rem 1.5rem;}
.attach-row{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:7px;}
.achip{display:flex;align-items:center;gap:5px;padding:2px 7px 2px 5px;background:rgba(129,140,248,.1);border:1px solid rgba(129,140,248,.25);border-radius:6px;font-size:.72rem;color:var(--a2);max-width:190px;}
.achip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.achip button{background:none;border:none;cursor:pointer;color:var(--text3);font-size:.85rem;line-height:1;transition:color .15s;flex-shrink:0;}
.achip button:hover{color:var(--danger);}
.input-row{display:flex;align-items:flex-end;gap:7px;background:var(--surface);border:1px solid var(--border);border-radius:13px;padding:7px 7px 7px 13px;transition:border-color .2s;}
.input-row:focus-within{border-color:rgba(56,189,248,.4);box-shadow:0 0 0 3px rgba(56,189,248,.06);}
#chatInput{flex:1;background:transparent;border:none;outline:none;color:var(--text);font-family:var(--sans);font-size:.88rem;line-height:1.5;resize:none;max-height:200px;min-height:22px;overflow-y:auto;}
#chatInput::placeholder{color:var(--text3);}
.iactions{display:flex;align-items:center;gap:3px;flex-shrink:0;}
.ibtn{width:32px;height:32px;border-radius:8px;border:1px solid var(--border);background:var(--surface2);color:var(--text2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.95rem;transition:all .15s;position:relative;}
.ibtn:hover{border-color:var(--accent);color:var(--accent);}
.ibtn input[type=file]{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%;}
.send-btn{width:34px;height:34px;border-radius:9px;border:none;background:linear-gradient(135deg,var(--accent),#0e7490);color:#000;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.95rem;transition:all .15s;flex-shrink:0;}
.send-btn:hover{transform:scale(1.07);box-shadow:0 4px 18px rgba(56,189,248,.35);}
.send-btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}
.ihint{margin-top:5px;font-size:.68rem;color:var(--text3);text-align:center;}
.ihint kbd{font-family:var(--mono);font-size:.63rem;background:var(--surface2);border:1px solid var(--border);border-radius:3px;padding:1px 4px;color:var(--text2);}
/* ── GENERATE PANE ── */
#generatePane{display:none;flex:1;overflow:hidden;flex-direction:column;}
.gen-layout{flex:1;display:grid;grid-template-columns:1fr 1fr;overflow:hidden;}
@media(max-width:780px){.gen-layout{grid-template-columns:1fr;}}
.gpanel{display:flex;flex-direction:column;overflow:hidden;border-right:1px solid var(--border);}
.gpanel:last-child{border-right:none;}
.gphead{padding:.7rem 1rem;border-bottom:1px solid var(--border);background:var(--bg2);display:flex;align-items:center;gap:7px;flex-shrink:0;}
.gphead-title{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text3);flex:1;}
.opts-strip{display:flex;align-items:center;gap:10px;padding:.6rem 1rem;border-bottom:1px solid var(--border);background:var(--surface);flex-wrap:wrap;flex-shrink:0;}
.tpill{display:flex;align-items:center;gap:5px;font-size:.76rem;color:var(--text2);cursor:pointer;user-select:none;}
.tgl{width:32px;height:17px;background:var(--surface3);border:1px solid var(--border);border-radius:20px;position:relative;cursor:pointer;transition:all .2s;}
.tgl::after{content:'';position:absolute;top:2px;left:2px;width:11px;height:11px;background:var(--text3);border-radius:50%;transition:all .2s;}
.tgl.on{background:rgba(56,189,248,.15);border-color:var(--accent);}
.tgl.on::after{left:17px;background:var(--accent);box-shadow:0 0 5px var(--accent);}
.tl.on{color:var(--accent);}
.big-ta{flex:1;background:var(--bg);border:none;outline:none;color:var(--text);font-family:var(--mono);font-size:.8rem;line-height:1.7;padding:1rem;resize:none;width:100%;min-height:0;}
.big-ta::placeholder{color:var(--text3);}
.fchips{display:flex;flex-wrap:wrap;gap:5px;padding:.55rem 1rem;border-bottom:1px solid var(--border);background:var(--surface);}
.fchip{display:flex;align-items:center;gap:5px;padding:2px 7px;border-radius:6px;background:rgba(52,211,153,.08);border:1px solid rgba(52,211,153,.2);font-size:.72rem;color:var(--a3);max-width:190px;}
.fchip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.fchip button{background:none;border:none;cursor:pointer;color:var(--text3);font-size:.85rem;transition:color .15s;flex-shrink:0;}
.fchip button:hover{color:var(--danger);}
.gen-bottom{padding:.65rem 1rem;border-top:1px solid var(--border);background:var(--bg2);display:flex;gap:7px;align-items:center;flex-shrink:0;}
.gen-btn{flex:1;padding:.65rem .9rem;background:linear-gradient(135deg,var(--accent),#0e7490);border:none;border-radius:9px;color:#000;font-family:var(--sans);font-size:.82rem;font-weight:700;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:5px;}
.gen-btn:hover{transform:translateY(-1px);box-shadow:0 5px 22px rgba(56,189,248,.3);}
.gen-btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}
.gen-btn.analyze{background:linear-gradient(135deg,var(--a2),#4338ca);}
.gen-btn.analyze:hover{box-shadow:0 5px 22px rgba(129,140,248,.3);}
.charcount{font-family:var(--mono);font-size:.68rem;color:var(--text3);white-space:nowrap;}
/* output */
.out-wrap{flex:1;display:flex;flex-direction:column;overflow:hidden;}
.out-tabs{display:flex;gap:3px;padding:.6rem 1rem;border-bottom:1px solid var(--border);background:var(--bg2);flex-shrink:0;}
.otab{font-size:.72rem;font-weight:600;padding:4px 11px;border-radius:7px;border:1px solid transparent;cursor:pointer;background:transparent;color:var(--text2);font-family:var(--sans);transition:all .15s;}
.otab.active{background:var(--adim);color:var(--accent);border-color:rgba(56,189,248,.25);}
.otab:hover:not(.active){color:var(--text);background:var(--surface2);}
.out-acts{margin-left:auto;display:flex;gap:3px;}
.oabtn{font-size:.7rem;font-family:var(--mono);padding:3px 9px;border-radius:6px;border:1px solid var(--border);background:transparent;color:var(--text3);cursor:pointer;transition:all .15s;}
.oabtn:hover{border-color:var(--a3);color:var(--a3);}
/* code area with line numbers */
.code-area{flex:1;overflow:auto;font-family:var(--mono);font-size:.79rem;line-height:1.7;}
.code-inner{padding:.9rem 0;counter-reset:ln;white-space:pre-wrap;word-break:break-word;}
.cl{display:flex;counter-increment:ln;}
.cl::before{content:counter(ln);min-width:2.8rem;text-align:right;padding-right:.9rem;color:var(--text3);font-size:.7rem;user-select:none;flex-shrink:0;padding-top:1px;opacity:.5;}
.cl-code{flex:1;padding-right:.9rem;}
/* explain cards */
.explain-area{flex:1;overflow-y:auto;padding:.85rem;display:flex;flex-direction:column;gap:7px;display:none;}
.ecard{background:var(--surface2);border:1px solid var(--border);border-radius:9px;overflow:hidden;animation:fadeUp .25s ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
.ecode{padding:.45rem .8rem;background:var(--bg);font-family:var(--mono);font-size:.75rem;color:var(--accent);border-bottom:1px solid var(--border);overflow-x:auto;white-space:pre;}
.etext{padding:.5rem .8rem;font-size:.8rem;line-height:1.6;color:var(--text);}
.elnum{font-size:.65rem;color:var(--text3);margin-bottom:2px;}
/* state boxes */
.statebox{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:11px;padding:2rem;color:var(--text3);text-align:center;}
.statebox .sbi{font-size:2.5rem;opacity:.3;}
.statebox h3{font-family:var(--display);font-size:.95rem;color:var(--text2);}
.statebox p{font-size:.78rem;line-height:1.6;max-width:230px;}
.spinner{width:38px;height:38px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .75s linear infinite;}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-sub{font-family:var(--mono);font-size:.75rem;color:var(--text3);animation:flicker 1.5s ease infinite;}
@keyframes flicker{0%,100%{opacity:1}50%{opacity:.3}}
/* analysis result */
.ablock{background:var(--surface2);border:1px solid var(--border);border-radius:9px;overflow:hidden;margin:.45rem 0;}
.ahead{padding:.5rem .8rem;background:var(--surface3);border-bottom:1px solid var(--border);font-size:.72rem;font-weight:600;color:var(--a2);display:flex;align-items:center;gap:5px;}
.abody{padding:.65rem .8rem;font-size:.8rem;line-height:1.6;}
.agrid{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:.45rem 0;}
.acard{background:var(--surface3);border:1px solid var(--border);border-radius:7px;padding:.6rem;}
.acard .al{color:var(--text3);font-size:.65rem;text-transform:uppercase;letter-spacing:.07em;margin-bottom:3px;}
.acard .av{color:var(--text);font-weight:600;font-family:var(--mono);font-size:.82rem;}
.errbox{margin:.85rem;padding:.7rem .9rem;background:rgba(248,113,113,.09);border:1px solid rgba(248,113,113,.25);border-radius:9px;font-size:.8rem;color:#fca5a5;display:none;}
::-webkit-scrollbar{width:4px;height:4px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px;}
/* responsive */
@media(max-width:600px){
.lang-pills{display:none;}
.mode-tabs{margin-left:auto;}
.logo em{display:none;}
#chatMessages{padding:1rem;}
#inputBar{padding:.65rem 1rem;}
}
</style>
</head>
<body>
<!-- TOPBAR -->
<div id="topbar">
<button id="sidebarToggle" onclick="toggleSidebar()" title="Toggle sidebar">☰</button>
<div class="logo">
<div class="logo-badge">⚡</div>
Code<em>Craft</em> AI
</div>
<div class="mode-tabs">
<button class="mtab active" onclick="setMode('chat')">💬 Chat</button>
<button class="mtab" onclick="setMode('generate')">⚙️ Generate</button>
<button class="mtab" onclick="setMode('analyze')">🔍 Analyze</button>
</div>
<div class="spacer"></div>
<div class="lang-pills" id="langPills">
<button class="lpill sel" data-lang="python" onclick="pickLang(this)">Python</button>
<button class="lpill" data-lang="c" onclick="pickLang(this)">C</button>
<button class="lpill" data-lang="html" onclick="pickLang(this)">HTML</button>
<button class="lpill" data-lang="css" onclick="pickLang(this)">CSS</button>
<button class="lpill" data-lang="javascript" onclick="pickLang(this)">JS</button>
<button class="lpill" data-lang="any" onclick="pickLang(this)">Any</button>
</div>
</div>
<!-- MAIN -->
<div id="main">
<!-- SIDEBAR -->
<div id="sidebar">
<div class="sb-section">
<div class="sb-title">Sessions</div>
<button class="new-chat-btn" onclick="newSession()">＋ New Session</button>
</div>
<div id="historyList"></div>
</div>
<!-- CENTER -->
<div id="center">
<!-- ══ CHAT PANE ══ -->
<div id="chatPane">
<div id="chatMessages">
<div class="welcome" id="welcomeDiv">
<h2>Your <em>AI Coding</em> Partner</h2>
<p>Chat naturally · Generate full projects · Analyze & debug any code</p>
<div class="sug-grid" id="sugGrid">
<div class="sug" onclick="useSuggestion(this)">
<div class="si">🐍</div>
<div class="st">Build a REST API</div>
Build a Python Flask REST API with CRUD endpoints and SQLite database
</div>
<div class="sug" onclick="useSuggestion(this)">
<div class="si">🌐</div>
<div class="st">Responsive Landing Page</div>
Create a modern HTML/CSS landing page with animations and mobile layout
</div>
<div class="sug" onclick="useSuggestion(this)">
<div class="si">⚙️</div>
<div class="st">Data Structures in C</div>
Implement linked list, stack, and queue in C with full documentation
</div>
<div class="sug" onclick="useSuggestion(this)">
<div class="si">🔍</div>
<div class="st">Analyze My Code</div>
Paste your code and I'll review it for bugs, performance, and best practices
</div>
<div class="sug" onclick="useSuggestion(this)">
<div class="si">🎯</div>
<div class="st">Algorithm Challenge</div>
Solve sorting, searching, or dynamic programming problems with explanation
</div>
<div class="sug" onclick="useSuggestion(this)">
<div class="si">🎨</div>
<div class="st">CSS Animation</div>
Write advanced CSS keyframe animations and transitions for a UI component
</div>
</div>
</div>
</div>
<!-- INPUT BAR -->
<div id="inputBar">
<div class="attach-row" id="attachRow"></div>
<div class="input-row">
<textarea id="chatInput" placeholder="Ask anything… paste code, describe a project, upload an image or PDF (Ctrl+Enter to send)" rows="1"
oninput="autoResize(this);updateCharCount()" onkeydown="handleKey(event)"></textarea>
<div class="iactions">
<div class="ibtn" title="Attach image or PDF">
📎<input type="file" accept="image/*,.pdf" multiple onchange="attachFiles(event)">
</div>
<div class="ibtn" title="Paste / drop code file">
📄<input type="file" accept=".c,.py,.html,.css,.js,.txt,.cpp,.java,.ts,.json" multiple onchange="attachFiles(event)">
</div>
<button class="send-btn" id="sendBtn" onclick="sendChat()" title="Send (Ctrl+Enter)">➤</button>
</div>
</div>
<div class="ihint"><kbd>Ctrl+Enter</kbd> send · <kbd>Shift+Enter</kbd> new line · Supports images, PDFs, code files</div>
</div>
</div>
<!-- ══ GENERATE PANE ══ -->
<div id="generatePane">
<div class="gen-layout">
<!-- LEFT: prompt input -->
<div class="gpanel">
<div class="gphead">
<span class="gphead-title">📝 Prompt / Description</span>
<span class="charcount" id="genCharCount">0 chars</span>
</div>
<div class="opts-strip">
<div class="tpill" onclick="toggle('explainTgl','explainLbl')">
<div class="tgl" id="explainTgl"></div>
<span class="tl" id="explainLbl">Explain lines</span>
</div>
<div class="tpill" onclick="toggle('commentsTgl','commentsLbl')">
<div class="tgl on" id="commentsTgl"></div>
<span class="tl on" id="commentsLbl">Comments</span>
</div>
<div class="tpill" onclick="toggle('optimizeTgl','optimizeLbl')">
<div class="tgl" id="optimizeTgl"></div>
<span class="tl" id="optimizeLbl">Optimize</span>
</div>
</div>
<div class="fchips" id="genFileChips" style="display:none"></div>
<textarea class="big-ta" id="genPrompt"
placeholder="Describe exactly what you want to build…
Examples:
• A Python web scraper that extracts product prices from a URL and saves to CSV
• A full HTML dashboard with charts and dark mode toggle
• A C implementation of a binary search tree with insert, delete, search
• A CSS glassmorphism card component with hover animation
Paste code here too — I can extend, refactor, or debug it.
No length limit — describe the most complex project you need."
oninput="updateGenCharCount()"></textarea>
<div class="gen-bottom">
<div class="ibtn" title="Upload image or PDF">
📎<input type="file" accept="image/*,.pdf,.c,.py,.html,.css,.js,.txt" multiple onchange="attachGenFiles(event)">
</div>
<button class="gen-btn" id="genBtn" onclick="runGenerate()">⚡ Generate Code</button>
</div>
</div>
<!-- RIGHT: output -->
<div class="gpanel">
<div class="out-wrap" id="genOutWrap">
<div class="out-tabs" id="genOutTabs" style="display:none">
<button class="otab active" id="otabCode" onclick="switchGenTab('code')">Code</button>
<button class="otab" id="otabExplain" onclick="switchGenTab('explain')" style="display:none">Line-by-Line</button>
<div class="out-acts">
<button class="oabtn" onclick="copyGenCode()">⎘ Copy</button>
<button class="oabtn" onclick="sendToChat()">💬 To Chat</button>
</div>
</div>
<div class="statebox" id="genEmpty">
<div class="sbi">🛠️</div>
<h3>Ready to build</h3>
<p>Describe your project on the left and hit Generate. Supports unlimited-length prompts.</p>
</div>
<div class="statebox" id="genLoading" style="display:none">
<div class="spinner"></div>
<div class="loading-sub" id="genLoadingText">Generating code…</div>
</div>
<div class="errbox" id="genErr"></div>
<div class="code-area" id="genCodeArea" style="display:none">
<div class="code-inner" id="genCodeInner"></div>
</div>
<div class="explain-area" id="genExplainArea"></div>
</div>
</div>
</div>
</div>
<!-- ══ ANALYZE PANE ══ -->
<div id="analyzePane" style="display:none;flex:1;flex-direction:column;overflow:hidden;">
<div class="gen-layout">
<!-- LEFT: code input -->
<div class="gpanel">
<div class="gphead">
<span class="gphead-title">📋 Paste Code to Analyze</span>
<span class="charcount" id="anaCharCount">0 chars</span>
</div>
<div class="fchips" id="anaFileChips" style="display:none"></div>
<textarea class="big-ta" id="anaCode"
placeholder="Paste any code here — any language, any length.
I will:
• Detect bugs and errors
• Review code quality and style
• Spot security vulnerabilities
• Suggest performance optimizations
• Explain what each section does
• Rate overall code quality
• Recommend improvements with examples"
oninput="updateAnaCharCount()"></textarea>
<div class="gen-bottom">
<div class="ibtn" title="Upload code file or image">
📎<input type="file" accept="image/*,.pdf,.c,.py,.html,.css,.js,.txt,.cpp,.java,.ts,.json" multiple onchange="attachAnaFiles(event)">
</div>
<button class="gen-btn analyze" id="anaBtn" onclick="runAnalyze()">🔍 Analyze Code</button>
</div>
</div>
<!-- RIGHT: analysis output -->
<div class="gpanel">
<div class="out-wrap">
<div class="statebox" id="anaEmpty">
<div class="sbi">🔬</div>
<h3>Code Analyzer</h3>
<p>Paste your code or upload a file. Works with C, Python, HTML, CSS, JavaScript, and more.</p>
</div>
<div class="statebox" id="anaLoading" style="display:none">
<div class="spinner"></div>
<div class="loading-sub">Analyzing code…</div>
</div>
<div class="errbox" id="anaErr"></div>
<div id="anaResult" style="display:none;flex:1;overflow-y:auto;padding:1rem;flex-direction:column;gap:.65rem;"></div>
</div>
</div>
</div>
</div>
</div><!-- end #center -->
</div><!-- end #main -->
<script>
/* ═══════════════════════════════════════════
STATE
═══════════════════════════════════════════ */
let mode = 'chat';
let lang = 'python';
let sessions = [];
let activeSession = null;
let chatAttachments = []; // {name, type, data(base64), mediaType}
let genFiles = [];
let anaFiles = [];
let genLastCode = '';
let genExplainData = [];
let genActiveTab = 'code';
let isSending = false;
const LANG_NAMES = {python:'Python',c:'C',html:'HTML',css:'CSS',javascript:'JavaScript',any:'any language'};
/* ═══════════════════════════════════════════
MODE & LANG
═══════════════════════════════════════════ */
function setMode(m) {
mode = m;
document.querySelectorAll('.mtab').forEach((b,i)=>b.classList.toggle('active',['chat','generate','analyze'][i]===m));
document.getElementById('chatPane').style.display = m==='chat'?'flex':'none';
document.getElementById('generatePane').style.display = m==='generate'?'flex':'none';
document.getElementById('analyzePane').style.display = m==='analyze'?'flex':'none';
if(m==='chat') document.getElementById('chatInput').focus();
}
function pickLang(btn) {
document.querySelectorAll('.lpill').forEach(b=>b.classList.remove('sel'));
btn.classList.add('sel');
lang = btn.dataset.lang;
}
function toggleSidebar(){document.getElementById('sidebar').classList.toggle('collapsed');}
/* ═══════════════════════════════════════════
SESSIONS / HISTORY
═══════════════════════════════════════════ */
function newSession() {
const s = {id:Date.now(), title:'New Session', messages:[], lang};
sessions.unshift(s);
activeSession = s;
renderHistory();
clearChatMessages();
document.getElementById('welcomeDiv').style.display='';
}
function renderHistory() {
const list = document.getElementById('historyList');
list.innerHTML = sessions.map(s=>`
<div class="hitem${s===activeSession?' active':''}" onclick="loadSession(${s.id})">
<span>💬</span>
<span class="hi">${escHtml(s.title)}</span>
<span class="hl">${s.lang||'py'}</span>
</div>`).join('');
}
function loadSession(id) {
const s = sessions.find(x=>x.id===id);
if(!s) return;
activeSession = s;
lang = s.lang||lang;
document.querySelectorAll('.lpill').forEach(b=>b.classList.toggle('sel',b.dataset.lang===lang));
clearChatMessages();
document.getElementById('welcomeDiv').style.display='none';
s.messages.forEach(m=>renderMessage(m.role,m.content,m.attachments));
renderHistory();
}
function clearChatMessages() {
const c = document.getElementById('chatMessages');
c.innerHTML = `<div class="welcome" id="welcomeDiv">
<h2>Your <em>AI Coding</em> Partner</h2>
<p>Chat naturally · Generate full projects · Analyze & debug any code</p>
<div class="sug-grid" id="sugGrid">
<div class="sug" onclick="useSuggestion(this)"><div class="si">🐍</div><div class="st">Build a REST API</div>Build a Python Flask REST API with CRUD endpoints and SQLite database</div>
<div class="sug" onclick="useSuggestion(this)"><div class="si">🌐</div><div class="st">Responsive Landing Page</div>Create a modern HTML/CSS landing page with animations and mobile layout</div>
<div class="sug" onclick="useSuggestion(this)"><div class="si">⚙️</div><div class="st">Data Structures in C</div>Implement linked list, stack, and queue in C with full documentation</div>
<div class="sug" onclick="useSuggestion(this)"><div class="si">🔍</div><div class="st">Analyze My Code</div>Paste your code and I'll review it for bugs, performance, and best practices</div>
<div class="sug" onclick="useSuggestion(this)"><div class="si">🎯</div><div class="st">Algorithm Challenge</div>Solve sorting, searching, or dynamic programming problems with explanation</div>
<div class="sug" onclick="useSuggestion(this)"><div class="si">🎨</div><div class="st">CSS Animation</div>Write advanced CSS keyframe animations and transitions for a UI component</div>
</div></div>`;
}
// init a default session
newSession();
/* ═══════════════════════════════════════════
CHAT
═══════════════════════════════════════════ */
function useSuggestion(el) {
document.getElementById('chatInput').value = el.querySelector('.sug').textContent.trim();
autoResize(document.getElementById('chatInput'));
document.getElementById('welcomeDiv').style.display='none';
document.getElementById('chatInput').focus();
}
// fix — target text inside sug card directly
document.addEventListener('click', e=>{
const sug = e.target.closest('.sug');
if(!sug) return;
const txt = sug.innerText.replace(/^.*\n/,'').trim();
document.getElementById('chatInput').value = txt;
autoResize(document.getElementById('chatInput'));
document.getElementById('welcomeDiv').style.display='none';
document.getElementById('chatInput').focus();
});
function autoResize(ta) {
ta.style.height='auto';
ta.style.height = Math.min(ta.scrollHeight,200)+'px';
}
function updateCharCount(){}
function handleKey(e) {
if(e.key==='Enter' && (e.ctrlKey||e.metaKey)){e.preventDefault();sendChat();}
}
async function sendChat() {
if(isSending) return;
const input = document.getElementById('chatInput');
const text = input.value.trim();
if(!text && chatAttachments.length===0) return;
// hide welcome
document.getElementById('welcomeDiv').style.display='none';
// ensure session
if(!activeSession) newSession();
if(activeSession.messages.length===0 && text) {
activeSession.title = text.slice(0,42)+(text.length>42?'…':'');
}
// render user msg
renderMessage('user', text, [...chatAttachments]);
activeSession.messages.push({role:'user',content:text,attachments:[...chatAttachments]});
renderHistory();
// clear
input.value=''; input.style.height='auto';
const atts = [...chatAttachments];
chatAttachments=[];
renderAttachRow();
isSending=true;
document.getElementById('sendBtn').disabled=true;
// typing indicator
const typingId = 'typing_'+Date.now();
appendTyping(typingId);
try {
const history = activeSession.messages.slice(0,-1);
const reply = await callClaude(text, atts, history);
removeTyping(typingId);
renderMessage('ai', reply);
activeSession.messages.push({role:'assistant',content:reply});
} catch(err) {
removeTyping(typingId);
renderMessage('ai','⚠️ Error: '+err.message);
}
isSending=false;
document.getElementById('sendBtn').disabled=false;
}
async function callClaude(userText, attachments, history) {
const sysPrompt = `You are CodeCraft AI, a world-class coding assistant specializing in Python, C, HTML, CSS, and JavaScript. You can:
- Write complete, production-quality programs of any size and complexity
- Analyze, debug, and refactor code thoroughly
- Explain code line by line when asked
- Build full multi-file projects (describe all files clearly)
- Answer any programming question with depth and accuracy
- Accept and process images and PDFs containing code or problem descriptions
Current preferred language: ${LANG_NAMES[lang]||lang}
When writing code:
- Always wrap code in fenced code blocks with the language tag
- Add inline comments for clarity
- Include usage examples where helpful
- For large projects, structure your response with clear sections
- Be thorough — never truncate output
When analyzing code:
- Identify all bugs and issues with line references
- Rate quality (1-10) across: correctness, readability, performance, security
- Provide specific improvement suggestions with example fixes
- Detect language automatically`;
// Build messages array for API
const msgs = [];
// Add conversation history
for(const h of history.slice(-10)) {
const role = h.role==='user'?'user':'assistant';
msgs.push({role, content: typeof h.content==='string'?h.content:JSON.stringify(h.content)});
}
// Build current user message content
const content = [];
for(const att of attachments) {
if(att.type==='image') {
content.push({type:'image',source:{type:'base64',media_type:att.mediaType,data:att.data}});
} else if(att.type==='pdf') {
content.push({type:'document',source:{type:'base64',media_type:'application/pdf',data:att.data}});
} else if(att.type==='text') {
content.push({type:'text',text:`[File: ${att.name}]\n\`\`\`\n${att.textContent}\n\`\`\``});
}
}
content.push({type:'text',text: userText||'(See attached file)'});
msgs.push({role:'user',content});
const res = await fetch('https://api.anthropic.com/v1/messages',{
method:'POST',
headers:{'Content-Type':'application/json'},
body:JSON.stringify({
model:'claude-sonnet-4-20250514',
max_tokens:8000,
system: sysPrompt,
messages: msgs
})
});
if(!res.ok){const e=await res.json().catch(()=>({}));throw new Error(e.error?.message||`API ${res.status}`);}
const data = await res.json();
return data.content.map(b=>b.text||'').join('');
}
function renderMessage(role, text, attachments=[]) {
const c = document.getElementById('chatMessages');
const div = document.createElement('div');
div.className = `msg ${role}`;
const isAI = role==='ai';
let attHtml = '';
if(attachments&&attachments.length) {
attHtml = attachments.map(a=>`<div class="mattach">📎 ${escHtml(a.name)}</div>`).join('');
}
div.innerHTML=`
<div class="mavatar">${isAI?'🤖':'👤'}</div>
<div class="mbody">
<div class="mname">${isAI?'CodeCraft AI':'You'}</div>
<div class="mbubble">${attHtml}${isAI?formatAIText(text):escHtml(text).replace(/\n/g,'<br>')}</div>
</div>`;
c.appendChild(div);
c.scrollTop = c.scrollHeight;
}
function formatAIText(text) {
// Convert markdown-ish to HTML
let html = escHtml(text);
// code blocks
html = html.replace(/```(\w*)\n?([\s\S]*?)```/g, (_,lang,code)=>{
const id = 'cb'+Math.random().toString(36).slice(2,8);
return `<pre><div class="pre-hdr"><span>${lang||'code'}</span><button class="cpinline" onclick="cpBlock('${id}')">⎘ Copy</button></div><code id="${id}">${code.trim()}</code></pre>`;
});
// inline code
html = html.replace(/`([^`]+)`/g,'<code>$1</code>');
// bold
html = html.replace(/\*\*(.+?)\*\*/g,'<strong>$1</strong>');
// headings
html = html.replace(/^### (.+)$/gm,'<strong>$1</strong>');
html = html.replace(/^## (.+)$/gm,'<strong style="font-size:.95rem">$1</strong>');
// bullet points
html = html.replace(/^\* (.+)$/gm,'• $1');
html = html.replace(/^- (.+)$/gm,'• $1');
// numbered
html = html.replace(/^\d+\. (.+)$/gm,'$&');
// paragraphs
html = html.split('\n\n').map(p=>`<p>${p.replace(/\n/g,'<br>')}</p>`).join('');
return html;
}
function cpBlock(id) {
const el = document.getElementById(id);
if(!el) return;
navigator.clipboard.writeText(el.textContent);
const btn = el.closest('pre').querySelector('.cpinline');
if(btn){btn.textContent='✓ Copied';setTimeout(()=>btn.textContent='⎘ Copy',2000);}
}
function appendTyping(id) {
const c = document.getElementById('chatMessages');
const div = document.createElement('div');
div.className='msg ai';div.id=id;
div.innerHTML=`<div class="mavatar">🤖</div><div class="mbody"><div class="mname">CodeCraft AI</div><div class="mbubble"><div class="typing"><div class="tdot"></div><div class="tdot"></div><div class="tdot"></div></div></div></div>`;
c.appendChild(div);c.scrollTop=c.scrollHeight;
}
function removeTyping(id){const el=document.getElementById(id);if(el)el.remove();}
/* ═══════════════════════════════════════════
ATTACHMENTS (CHAT)
═══════════════════════════════════════════ */
async function attachFiles(e) {
const files = Array.from(e.target.files);
for(const file of files) await loadAttachment(file, 'chat');
e.target.value='';
renderAttachRow();
}
async function loadAttachment(file, dest) {
return new Promise(resolve=>{
const isPDF = file.type==='application/pdf';
const isImage = file.type.startsWith('image/');
const isText = !isPDF && !isImage;
if(isText) {
const r = new FileReader();
r.onload=e2=>{
const obj={name:file.name,type:'text',textContent:e2.target.result,mediaType:file.type};
if(dest==='chat') chatAttachments.push(obj);
else if(dest==='gen') genFiles.push(obj);
else if(dest==='ana') anaFiles.push(obj);
resolve();
};
r.readAsText(file);
} else {
const r = new FileReader();
r.onload=e2=>{
const b64 = e2.target.result.split(',')[1];
const obj={name:file.name,type:isPDF?'pdf':'image',data:b64,mediaType:file.type||'image/png'};
if(dest==='chat') chatAttachments.push(obj);
else if(dest==='gen') genFiles.push(obj);
else if(dest==='ana') anaFiles.push(obj);
resolve();
};
r.readAsDataURL(file);
}
});
}
function renderAttachRow() {
const row = document.getElementById('attachRow');
row.innerHTML = chatAttachments.map((a,i)=>`
<div class="achip"><span>${a.type==='image'?'🖼️':a.type==='pdf'?'📄':'📝'}</span>
<span>${escHtml(a.name)}</span>
<button onclick="removeAttach(${i})">✕</button></div>`).join('');
}
function removeAttach(i){chatAttachments.splice(i,1);renderAttachRow();}
/* ═══════════════════════════════════════════
GENERATE
═══════════════════════════════════════════ */
function updateGenCharCount(){
const v=document.getElementById('genPrompt').value;
document.getElementById('genCharCount').textContent=v.length.toLocaleString()+' chars';
}
function updateAnaCharCount(){
const v=document.getElementById('anaCode').value;
document.getElementById('anaCharCount').textContent=v.length.toLocaleString()+' chars';
}
function toggle(tglId, lblId) {
const t=document.getElementById(tglId);
const l=document.getElementById(lblId);
const on=t.classList.toggle('on');
l.classList.toggle('on',on);
}
function isOn(id){return document.getElementById(id).classList.contains('on');}
async function attachGenFiles(e){
const files=Array.from(e.target.files);
for(const f of files) await loadAttachment(f,'gen');
e.target.value='';renderGenChips();
}
function renderGenChips(){
const el=document.getElementById('genFileChips');
el.style.display=genFiles.length?'flex':'none';
el.innerHTML=genFiles.map((f,i)=>`<div class="fchip"><span>${escHtml(f.name)}</span><button onclick="rmGenFile(${i})">✕</button></div>`).join('');
}
function rmGenFile(i){genFiles.splice(i,1);renderGenChips();}
async function runGenerate(){
const prompt=document.getElementById('genPrompt').value.trim();
if(!prompt&&genFiles.length===0){showErr('genErr','Please enter a prompt or upload a file.');return;}
hideErr('genErr');
setGenLoading(true);
try{
const explainLines=isOn('explainTgl');
const addComments=isOn('commentsTgl');
const optimize=isOn('optimizeTgl');
const langName=LANG_NAMES[lang]||lang;
const sysPrompt=`You are an expert ${langName} programmer. Generate complete, accurate, working code.
${addComments?'Add clear inline comments.':''}
${optimize?'Optimize for performance and best practices.':''}
Respond ONLY with valid JSON (no markdown fences, no preamble):
{
"code": "complete code here with real newlines",
"title": "short program title",
"description": "1-2 sentence description",
${explainLines?'"explanations": [{"lineNum":1,"line":"code line","explanation":"what it does"}]':''"explanations": []'"}
}
For explanations include every meaningful non-blank line. Escape all strings properly in JSON.`;
const content=[];
for(const f of genFiles){
if(f.type==='image') content.push({type:'image',source:{type:'base64',media_type:f.mediaType,data:f.data}});
else if(f.type==='pdf') content.push({type:'document',source:{type:'base64',media_type:'application/pdf',data:f.data}});
else content.push({type:'text',text:`[File: ${f.name}]\n${f.textContent}`});
}
content.push({type:'text',text:prompt||'Generate code from the attached file'});
const res=await fetch('https://api.anthropic.com/v1/messages',{
method:'POST',headers:{'Content-Type':'application/json'},
body:JSON.stringify({model:'claude-sonnet-4-20250514',max_tokens:8000,
system:sysPrompt,messages:[{role:'user',content}]})
});
if(!res.ok){const e=await res.json().catch(()=>({}));throw new Error(e.error?.message||`API ${res.status}`);}
const data=await res.json();
let raw=data.content.map(b=>b.text||'').join('');
let parsed;
try{
let clean=raw.trim();
if(clean.startsWith('```')){clean=clean.replace(/^```[a-z]*\n?/,'').replace(/\n?```$/,'').trim();}
parsed=JSON.parse(clean);
}catch(e){
const m=raw.match(/\{[\s\S]*\}/);
if(m)try{parsed=JSON.parse(m[0]);}catch(e2){parsed={code:raw,title:'Generated Code',explanations:[]};}
else parsed={code:raw,title:'Generated Code',explanations:[]};
}
genLastCode=parsed.code||'';
genExplainData=parsed.explanations||[];
setGenLoading(false);
showGenCode(genLastCode, genExplainData);
}catch(err){
setGenLoading(false);
showErr('genErr',err.message||'Something went wrong.');
}
}
function setGenLoading(on){
document.getElementById('genBtn').disabled=on;
document.getElementById('genBtn').innerHTML=on?'<div class="spinner" style="width:18px;height:18px;border-width:2px;margin:0"></div> Generating…':'⚡ Generate Code';
document.getElementById('genEmpty').style.display=on?'none':'';
document.getElementById('genLoading').style.display=on?'flex':'none';
if(on){document.getElementById('genCodeArea').style.display='none';document.getElementById('genExplainArea').style.display='none';document.getElementById('genOutTabs').style.display='none';}
}
function showGenCode(code, explanations){
document.getElementById('genEmpty').style.display='none';
document.getElementById('genLoading').style.display='none';
const tabs=document.getElementById('genOutTabs');
tabs.style.display='flex';
document.getElementById('otabExplain').style.display=explanations.length?'':'none';
// render code
const lines=code.split('\n');
const inner=document.getElementById('genCodeInner');
inner.innerHTML=lines.map(l=>`<div class="cl"><span class="cl-code">${escHtml(l)}</span></div>`).join('');
// render explanations
const ea=document.getElementById('genExplainArea');
ea.innerHTML='';
explanations.forEach((item,i)=>{
const d=document.createElement('div');
d.className='ecard';d.style.animationDelay=(i*.04)+'s';
d.innerHTML=`<div class="ecode">${escHtml(item.line)}</div><div class="etext"><div class="elnum">Line ${item.lineNum}</div>${escHtml(item.explanation)}</div>`;
ea.appendChild(d);
});
switchGenTab('code');
}
function switchGenTab(tab){
genActiveTab=tab;
document.getElementById('otabCode').classList.toggle('active',tab==='code');
document.getElementById('otabExplain').classList.toggle('active',tab==='explain');
document.getElementById('genCodeArea').style.display=tab==='code'?'flex':'none';
document.getElementById('genExplainArea').style.display=tab==='explain'?'flex':'none';
}
function copyGenCode(){
if(!genLastCode)return;
navigator.clipboard.writeText(genLastCode);
const b=document.querySelector('#genOutTabs .oabtn');
b.textContent='✓ Copied!';setTimeout(()=>b.textContent='⎘ Copy',2000);
}
function sendToChat(){
if(!genLastCode)return;
setMode('chat');
document.getElementById('chatInput').value='Here is the code I generated:\n```\n'+genLastCode.slice(0,500)+'...\n```\nCan you review it?';
autoResize(document.getElementById('chatInput'));
}
/* ═══════════════════════════════════════════
ANALYZE
═══════════════════════════════════════════ */
async function attachAnaFiles(e){
const files=Array.from(e.target.files);
for(const f of files) await loadAttachment(f,'ana');
e.target.value='';renderAnaChips();
// if text file, put content in textarea
for(const f of anaFiles){
if(f.type==='text'){document.getElementById('anaCode').value+=f.textContent+'\n';updateAnaCharCount();}
}
}
function renderAnaChips(){
const el=document.getElementById('anaFileChips');
el.style.display=anaFiles.length?'flex':'none';
el.innerHTML=anaFiles.map((f,i)=>`<div class="fchip"><span>${escHtml(f.name)}</span><button onclick="rmAnaFile(${i})">✕</button></div>`).join('');
}
function rmAnaFile(i){anaFiles.splice(i,1);renderAnaChips();}
async function runAnalyze(){
const code=document.getElementById('anaCode').value.trim();
if(!code&&anaFiles.length===0){showErr('anaErr','Please paste code or upload a file.');return;}
hideErr('anaErr');
setAnaLoading(true);
try{
const sysPrompt=`You are a senior code reviewer. Analyze the provided code deeply and return ONLY valid JSON:
{
"language": "detected language",
"lineCount": number,
"scores": {"correctness":8,"readability":7,"performance":6,"security":9},
"summary": "2-3 sentence overall summary",
"bugs": [{"line":"line ref or code","severity":"high|medium|low","issue":"description","fix":"suggested fix"}],
"improvements": [{"title":"improvement","description":"details","example":"code example if helpful"}],
"strengths": ["strength 1","strength 2"],
"sections": [{"name":"Section Name","lines":"L1-L20","purpose":"what this section does"}]
}
Be thorough. Find all real issues. No markdown, no backticks around JSON.`;
const content=[];
for(const f of anaFiles){
if(f.type==='image') content.push({type:'image',source:{type:'base64',media_type:f.mediaType,data:f.data}});
else if(f.type==='pdf') content.push({type:'document',source:{type:'base64',media_type:'application/pdf',data:f.data}});
}
content.push({type:'text',text:code||'Analyze the attached file'});
const res=await fetch('https://api.anthropic.com/v1/messages',{
method:'POST',headers:{'Content-Type':'application/json'},
body:JSON.stringify({model:'claude-sonnet-4-20250514',max_tokens:4000,
system:sysPrompt,messages:[{role:'user',content}]})
});
if(!res.ok){const e=await res.json().catch(()=>({}));throw new Error(e.error?.message||`API ${res.status}`);}
const data=await res.json();
let raw=data.content.map(b=>b.text||'').join('');
let parsed;
try{
let clean=raw.trim();
if(clean.startsWith('```')){clean=clean.replace(/^```[a-z]*\n?/,'').replace(/\n?```$/,'').trim();}
parsed=JSON.parse(clean);
}catch(e){
const m=raw.match(/\{[\s\S]*\}/);
if(m)try{parsed=JSON.parse(m[0]);}catch(e2){parsed=null;}
else parsed=null;
}
setAnaLoading(false);
if(parsed) renderAnalysis(parsed);
else {
// fallback: show raw
const r=document.getElementById('anaResult');
r.innerHTML=`<div class="ablock"><div class="ahead">📊 Analysis</div><div class="abody">${formatAIText(raw)}</div></div>`;
r.style.display='flex';