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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="description" content="ChatGPT API Demo" />
<meta name="viewport" content="width=device-width, height=device-height" />
<title>OpenAI Chat</title>
<style>
* {
box-sizing: border-box;
}
html,
body,
#app {
height: 100%;
}
body {
margin: 0;
font-family: -apple-system, "system-ui", "Segoe UI Adjusted", "Segoe UI",
"Liberation Sans", sans-serif;
}
pre {
overflow-x: auto;
border-radius: 6px;
}
button {
border: none;
background-color: transparent;
color: inherit;
padding: 0;
cursor: pointer;
}
ul {
list-style: none;
padding: 0;
margin: 0;
}
#app {
display: flex;
flex-direction: column;
}
header {
position: relative;
width: 100%;
height: 48px;
flex-shrink: 0;
display: flex;
justify-content: center;
align-items: center;
background-color: #333;
color: white;
}
header > button {
position: absolute;
padding: 12px;
}
button.menu {
left: 0;
}
button.clear {
right: 0;
}
.hidden {
display: none;
}
aside {
position: fixed;
top: 0;
width: 100%;
height: 100%;
z-index: 1;
display: flex;
}
.sidebar-container {
background-color: #333;
color: white;
width: 300px;
overflow-y: auto;
}
.sidebar-modal {
flex: 1 0;
min-width: 64px;
background-color: rgba(0, 0, 0, 0.3);
}
li > button {
width: 100%;
height: 48px;
text-align: left;
padding: 0 16px;
transition: background-color 0.2s;
}
li > button:hover {
background-color: rgba(255, 255, 255, 0.1);
}
main {
flex-grow: 1;
overflow-y: auto;
}
.chat-container {
display: flex;
flex-direction: column;
width: 100%;
max-width: 768px;
margin: 0 auto;
overflow-wrap: break-word;
}
.chat-container .message {
padding: 2px 16px;
}
.chat-container .assistant {
background-color: #f0f0f0;
}
footer {
width: 100%;
padding: 8px;
display: flex;
justify-content: center;
border-top: 1px solid rgba(0, 0, 0, 0.1);
}
#input-box {
width: 100%;
max-width: 768px;
padding: 8px;
border-width: 1px;
border-color: rgba(0, 0, 0, 0.1);
border-radius: 6px;
box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}
</style>
</head>
<body>
<div id="app"></div>
<script
src="https://unpkg.com/react@18/umd/react.production.min.js"
crossorigin
></script>
<script
src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"
crossorigin
></script>
<script src="https://cdn.jsdelivr.net/npm/markdown-it@13.0.1/dist/markdown-it.min.js"></script>
<link
href="https://cdn.jsdelivr.net/npm/highlight.js@11.7.0/styles/github.min.css"
rel="stylesheet"
/>
<script
src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.7.0/highlight.min.js"
integrity="sha512-bgHRAiTjGrzHzLyKOnpFvaEpGzJet3z4tZnXGjpsCcqOnAH6VGUx9frc5bcIhKTVLEiCO6vEhNAgx5jtLUYrfA=="
crossorigin="anonymous"
referrerpolicy="no-referrer"
></script>
<script type="module">
function getToken() {
// Try localStorage first
let token = localStorage.getItem("openai-token");
if (token) return token;
token = prompt("Please enter your OpenAI API key");
if (token) {
localStorage.setItem("openai-token", token);
return token;
}
}
async function getApiUrl() {
if (getApiUrl.url) return getApiUrl.url;
try {
const response = await fetch("/api/completions", {
method: "OPTIONS",
});
if (response.status !== 200) throw new Error();
getApiUrl.url = "/api/completions";
const corsHeaders = (
response.headers.get("Access-Control-Allow-Headers") || ""
).toLowerCase();
getApiUrl.tokenRequired = corsHeaders.includes("authorization");
} catch (e) {
getApiUrl.url = "https://api.openai.com/v1/chat/completions";
getApiUrl.tokenRequired = true;
}
return getApiUrl.url;
}
async function complete(messages, token, progressCallback) {
const headers = { "Content-Type": "application/json" };
if (getApiUrl.tokenRequired) headers.Authorization = `Bearer ${token}`;
const response = await fetch(await getApiUrl(), {
method: "POST",
headers: headers,
body: JSON.stringify({
model: "gpt-3.5-turbo",
messages: messages,
stream: true,
}),
});
if (response.status !== 200) {
throw new Error(await response.text());
}
const reader = response.body.getReader();
let responseObj = {};
for (;;) {
const { done, value } = await reader.read();
if (done) break;
const lines = new TextDecoder("utf-8").decode(value).split("\n");
for (const line of lines) {
if (line.startsWith("data: ")) {
if (line.includes("[DONE]")) return responseObj;
try {
const data = JSON.parse(line.slice(6));
const delta = data.choices[0].delta;
for (const key in delta) {
if (!(key in responseObj)) responseObj[key] = delta[key];
else responseObj[key] += delta[key];
progressCallback(responseObj);
}
} catch (e) {
console.log("Error parsing line:", line);
}
}
}
}
return responseObj;
}
var md = window.markdownit();
function ChatContainer({ messages }) {
const ref = React.useRef(null);
React.useEffect(() => {
// Highlight code blocks but skip ones that are already highlighted
ref.current
.querySelectorAll("pre code:not(.hljs)")
.forEach((node) => {
hljs.highlightElement(node);
});
// Highlight code blocks in the last message
const last = ref.current.lastElementChild;
for (const node of last ? last.querySelectorAll("pre code") : []) {
node.textContent = node.innerText;
hljs.highlightElement(node);
}
// Scroll to bottom
const main = ref.current.parentElement;
main.scrollTop = main.scrollHeight;
});
return React.createElement(
"div",
{ ref, className: "chat-container" },
messages.map((message, index) => {
return React.createElement("div", {
className: [message.role, "message"].join(" "),
key: index,
dangerouslySetInnerHTML: {
__html: md.render(message.content || ""),
},
});
})
);
}
export function Sidebar({
messages,
onMessagesChange,
onModalClick,
onClearClick,
onSettingsClick,
}) {
const initConversations = JSON.parse(
localStorage.getItem("conversations") || "[]"
);
const [conversations, setConversations] =
React.useState(initConversations);
const [currentConversation, setCurrentConversation] = React.useState(
conversations[0]
);
const currentConversationRef = React.useRef(currentConversation);
React.useEffect(() => {
if (!conversations.length) localStorage.removeItem("conversations");
else
localStorage.setItem(
"conversations",
JSON.stringify(conversations)
);
}, [conversations]);
React.useEffect(() => {
currentConversationRef.current = currentConversation;
onMessagesChange(currentConversation?.messages || []);
}, [currentConversation, onMessagesChange]);
React.useEffect(() => {
if (!messages.length && !currentConversationRef.current) return;
if (!currentConversationRef.current) {
const newCoversation = {
id: crypto.getRandomValues(new Uint32Array(1))[0],
title: messages[0].content.split("\n")[0].slice(0, 20),
messages,
};
setConversations([newCoversation, ...conversations]);
setCurrentConversation(newCoversation);
} else if (currentConversationRef.current.messages !== messages) {
currentConversationRef.current.messages = messages;
localStorage.setItem(
"conversations",
JSON.stringify(conversations)
);
}
}, [messages]);
return [
React.createElement(
"div",
{ key: "sidebar-container", className: "sidebar-container" },
[
React.createElement("ul", { key: "list" }, [
React.createElement("li", { key: "new" }, [
React.createElement(
"button",
{
key: "new",
onClick: () => setCurrentConversation(null),
},
"New Chat"
),
]),
conversations.map((conversation, index) => {
return React.createElement("li", { key: index }, [
React.createElement(
"button",
{
key: conversation.id,
onClick: () => {
setCurrentConversation(conversation);
},
onContextMenu: (ev) => {
ev.preventDefault();
setConversations(
conversations.filter((c) => c !== conversation)
);
if (currentConversation === conversation)
setCurrentConversation(null);
},
},
conversation.title
),
]);
}),
React.createElement("li", { key: "clear" }, [
React.createElement(
"button",
{
key: "clear",
onClick: () => {
setConversations([]);
setCurrentConversation(null);
onMessagesChange([]);
onModalClick();
},
},
"Clear Conversations"
),
]),
React.createElement("li", { key: "settings" }, [
React.createElement(
"button",
{
key: "settings",
onClick: onSettingsClick,
},
"Settings"
),
]),
]),
]
),
React.createElement("div", {
key: "sidebar-modal",
className: "sidebar-modal",
onClick: onModalClick,
}),
];
}
export function App() {
let token = null;
getApiUrl().then(() => {
if (getApiUrl.tokenRequired) token = getToken();
});
const [messages, setMessages] = React.useState([]);
const [editingMessage, setEditingMessage] = React.useState(null);
const [showSidebar, setShowSidebar] = React.useState(false);
return [
React.createElement("header", { key: "header" }, [
React.createElement("span", { key: "title" }, "OpenAI Chat"),
React.createElement(
"button",
{
key: "menu",
onClick: () => {
setShowSidebar(!showSidebar);
},
className: "menu",
},
React.createElement("img", {
src: "/assets/img/menu.svg",
width: "24",
height: "24",
alt: "Menu",
})
),
React.createElement(
"button",
{
key: "clear",
onClick: () => {
setMessages([]);
},
className: "clear",
},
React.createElement("img", {
src: "/assets/img/cleaning_services.svg",
width: "24",
height: "24",
alt: "Clear",
})
),
]),
React.createElement(
"aside",
{
key: "sidebar",
className: showSidebar ? "sidebar" : "sidebar hidden",
},
React.createElement(Sidebar, {
key: "sidebar",
messages,
onMessagesChange: setMessages,
onModalClick: () => {
setShowSidebar(false);
},
})
),
React.createElement(
"main",
{ key: "main" },
React.createElement(ChatContainer, {
messages: [...messages, editingMessage].filter((m) => m),
key: "chat-container",
})
),
React.createElement(
"footer",
{ key: "footer" },
React.createElement("input", {
id: "input-box",
type: "text",
"aria-label": "Chat with AI",
onKeyUp: async (ev) => {
if (ev.key === "Enter") {
if (
ev.target.value.length === 0 ||
ev.target.value.length >= 4096
)
return;
const message = ev.target.value;
ev.target.value = "";
ev.target.blur();
const userMessages = [
...messages,
{ role: "user", content: message },
];
setMessages(userMessages);
try {
const completion = await complete(
userMessages,
token,
(message) => setEditingMessage({ ...message })
);
setMessages((messages) => [...messages, completion]);
} catch (error) {
console.log(error.message);
return;
} finally {
setEditingMessage(null);
}
}
},
})
),
];
}
const rootNode = document.getElementById("app");
const root = ReactDOM.createRoot(rootNode);
root.render(React.createElement(App));
</script>
</body>
</html>