Andrej Karpathy
394 lines
12 KiB
HTML
394 lines
12 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>NanoChat</title>
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<link rel="icon" type="image/svg+xml" href="/logo.svg">
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<style>
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:root {
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color-scheme: light;
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}
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* {
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box-sizing: border-box;
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}
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body {
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font-family: ui-sans-serif, -apple-system, system-ui, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
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background-color: #ffffff;
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color: #111827;
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min-height: 100vh;
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margin: 0;
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display: flex;
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flex-direction: column;
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}
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.header {
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background-color: #ffffff;
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padding: 1.25rem 1.5rem;
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}
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.header-left {
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display: flex;
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align-items: center;
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gap: 0.75rem;
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}
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.header-logo {
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height: 32px;
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width: auto;
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}
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.header h1 {
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font-size: 1.25rem;
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font-weight: 600;
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margin: 0;
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color: #111827;
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}
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.new-conversation-btn {
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width: 32px;
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height: 32px;
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padding: 0;
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border: 1px solid #e5e7eb;
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border-radius: 0.5rem;
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background-color: #ffffff;
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color: #6b7280;
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cursor: pointer;
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display: flex;
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align-items: center;
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justify-content: center;
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transition: all 0.2s ease;
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}
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.new-conversation-btn:hover {
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background-color: #f3f4f6;
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border-color: #d1d5db;
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color: #374151;
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}
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.chat-container {
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flex: 1;
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overflow-y: auto;
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background-color: #ffffff;
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}
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.chat-wrapper {
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max-width: 48rem;
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margin: 0 auto;
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padding: 2rem 1.5rem 3rem;
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display: flex;
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flex-direction: column;
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gap: 0.75rem;
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}
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.message {
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display: flex;
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justify-content: flex-start;
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margin-bottom: 0.5rem;
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color: #0d0d0d;
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}
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.message.assistant {
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justify-content: flex-start;
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}
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.message.user {
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justify-content: flex-end;
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}
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.message-content {
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white-space: pre-wrap;
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line-height: 1.6;
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max-width: 100%;
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}
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.message.assistant .message-content {
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background: transparent;
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border: none;
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padding: 0.25rem 0;
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}
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.message.user .message-content {
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background-color: #f3f4f6;
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border-radius: 1.25rem;
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padding: 0.8rem 1rem;
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max-width: 65%;
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}
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.input-container {
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background-color: #ffffff;
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padding: 1rem;
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}
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.input-wrapper {
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max-width: 48rem;
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margin: 0 auto;
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display: flex;
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gap: 0.75rem;
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align-items: flex-end;
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}
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.chat-input {
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flex: 1;
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padding: 0.8rem 1rem;
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border: 1px solid #d1d5db;
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border-radius: 0.75rem;
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background-color: #ffffff;
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color: #111827;
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font-size: 1rem;
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line-height: 1.5;
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resize: none;
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outline: none;
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min-height: 54px;
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max-height: 200px;
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transition: border-color 0.2s ease, box-shadow 0.2s ease;
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}
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.chat-input::placeholder {
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color: #9ca3af;
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}
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.chat-input:focus {
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border-color: #2563eb;
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box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
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}
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.send-button {
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flex-shrink: 0;
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padding: 0;
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width: 54px;
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height: 54px;
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border: 1px solid #111827;
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border-radius: 0.75rem;
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background-color: #111827;
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color: #ffffff;
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display: flex;
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align-items: center;
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justify-content: center;
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cursor: pointer;
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transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
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}
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.send-button:hover:not(:disabled) {
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background-color: #2563eb;
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border-color: #2563eb;
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}
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.send-button:disabled {
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cursor: not-allowed;
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border-color: #d1d5db;
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background-color: #e5e7eb;
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color: #9ca3af;
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}
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.typing-indicator {
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display: inline-block;
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color: #6b7280;
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letter-spacing: 0.15em;
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}
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.typing-indicator::after {
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content: '···';
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animation: typing 1.4s infinite;
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}
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@keyframes typing {
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0%, 60%, 100% { opacity: 0.2; }
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30% { opacity: 1; }
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}
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.error-message {
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background-color: #fee2e2;
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border: 1px solid #fecaca;
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color: #b91c1c;
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padding: 0.75rem 1rem;
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border-radius: 0.75rem;
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margin-top: 0.5rem;
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}
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</style>
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</head>
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<body>
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<div class="header">
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<div class="header-left">
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<button class="new-conversation-btn" onclick="newConversation()" title="New Conversation (Ctrl+Shift+N)">
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<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
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<path d="M12 5v14"></path>
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<path d="M5 12h14"></path>
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</svg>
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</button>
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<h1>nanochat</h1>
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</div>
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</div>
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<div class="chat-container" id="chatContainer">
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<div class="chat-wrapper" id="chatWrapper">
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<!-- Messages will be added here -->
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</div>
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</div>
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<div class="input-container">
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<div class="input-wrapper">
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<textarea
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id="chatInput"
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class="chat-input"
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placeholder="Ask anything"
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rows="1"
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onkeydown="handleKeyDown(event)"
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></textarea>
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<button id="sendButton" class="send-button" onclick="sendMessage()" disabled>
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<svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
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<path d="M22 2L11 13"></path>
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<path d="M22 2l-7 20-4-9-9-4 20-7z"></path>
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</svg>
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</button>
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</div>
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</div>
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<script>
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const API_URL = '';
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const chatContainer = document.getElementById('chatContainer');
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const chatWrapper = document.getElementById('chatWrapper');
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const chatInput = document.getElementById('chatInput');
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const sendButton = document.getElementById('sendButton');
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let messages = [];
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let isGenerating = false;
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chatInput.addEventListener('input', function() {
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this.style.height = 'auto';
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this.style.height = Math.min(this.scrollHeight, 200) + 'px';
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sendButton.disabled = !this.value.trim() || isGenerating;
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});
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function handleKeyDown(event) {
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if (event.key === 'Enter' && !event.shiftKey) {
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event.preventDefault();
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sendMessage();
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}
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}
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document.addEventListener('keydown', function(event) {
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// Ctrl+Shift+N for new conversation
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if (event.ctrlKey && event.shiftKey && event.key === 'N') {
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event.preventDefault();
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if (!isGenerating) {
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newConversation();
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}
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}
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});
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function newConversation() {
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messages = [];
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chatWrapper.innerHTML = '';
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chatInput.value = '';
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chatInput.style.height = 'auto';
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sendButton.disabled = false;
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isGenerating = false;
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chatInput.focus();
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}
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function addMessage(role, content) {
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const messageDiv = document.createElement('div');
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messageDiv.className = `message ${role}`;
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const contentDiv = document.createElement('div');
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contentDiv.className = 'message-content';
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contentDiv.textContent = content;
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messageDiv.appendChild(contentDiv);
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chatWrapper.appendChild(messageDiv);
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chatContainer.scrollTop = chatContainer.scrollHeight;
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return contentDiv;
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}
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async function sendMessage() {
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const message = chatInput.value.trim();
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if (!message || isGenerating) return;
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isGenerating = true;
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chatInput.value = '';
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chatInput.style.height = 'auto';
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sendButton.disabled = true;
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messages.push({ role: 'user', content: message });
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addMessage('user', message);
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const assistantContent = addMessage('assistant', '');
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assistantContent.innerHTML = '<span class="typing-indicator"></span>';
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try {
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const response = await fetch(`${API_URL}/chat/completions`, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify({
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messages: messages,
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temperature: 0.8,
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max_tokens: 512
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}),
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});
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if (!response.ok) {
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throw new Error(`HTTP error! status: ${response.status}`);
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}
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const reader = response.body.getReader();
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const decoder = new TextDecoder();
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let fullResponse = '';
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assistantContent.textContent = '';
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while (true) {
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const { done, value } = await reader.read();
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if (done) break;
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const chunk = decoder.decode(value);
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const lines = chunk.split('\n');
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for (const line of lines) {
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if (line.startsWith('data: ')) {
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try {
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const data = JSON.parse(line.slice(6));
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if (data.token) {
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fullResponse += data.token;
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assistantContent.textContent = fullResponse;
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chatContainer.scrollTop = chatContainer.scrollHeight;
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}
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} catch (e) {
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}
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}
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}
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}
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messages.push({ role: 'assistant', content: fullResponse });
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} catch (error) {
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console.error('Error:', error);
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assistantContent.innerHTML = `<div class="error-message">Error: ${error.message}</div>`;
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} finally {
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isGenerating = false;
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sendButton.disabled = !chatInput.value.trim();
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}
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}
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sendButton.disabled = false;
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// Autofocus the chat input on page load
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chatInput.focus();
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fetch(`${API_URL}/health`)
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.then(response => response.json())
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.then(data => {
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console.log('Engine status:', data);
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})
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.catch(error => {
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console.error('Engine not available:', error);
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chatWrapper.innerHTML = '<div class="error-message">Engine not running. Please start engine.py first.</div>';
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});
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</script>
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</body>
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</html>
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