khoj/src/interface/desktop/chat.html
Debanjum Singh Solanky 041074ccd6 Make chat the landing page for the desktop app
Chat, unlike search, doesn't knowledge base indexing setup.
So you can get started with chat much faster.
2023-11-02 20:42:21 -07:00

564 lines
22 KiB
HTML

<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0 maximum-scale=1.0">
<title>Khoj - Chat</title>
<link rel="icon" type="image/png" sizes="128x128" href="./assets/icons/favicon-128x128.png">
<link rel="manifest" href="/static/khoj_chat.webmanifest">
<link rel="stylesheet" href="./assets/khoj.css">
</head>
<script>
let chatOptions = [];
function copyProgrammaticOutput(event) {
// Remove the first 4 characters which are the "Copy" button
const programmaticOutput = event.target.parentNode.textContent.trim().slice(4);
navigator.clipboard.writeText(programmaticOutput).then(() => {
console.log("Programmatic output copied to clipboard");
}).catch((error) => {
console.error("Error copying programmatic output to clipboard:", error);
});
}
function formatDate(date) {
// Format date in HH:MM, DD MMM YYYY format
let time_string = date.toLocaleTimeString('en-IN', { hour: '2-digit', minute: '2-digit', hour12: false });
let date_string = date.toLocaleString('en-IN', { year: 'numeric', month: 'short', day: '2-digit'}).replaceAll('-', ' ');
return `${time_string}, ${date_string}`;
}
function generateReference(reference, index) {
// Escape reference for HTML rendering
let escaped_ref = reference.replaceAll('"', '&quot;');
// Generate HTML for Chat Reference
return `<sup><abbr title="${escaped_ref}" tabindex="0">${index}</abbr></sup>`;
}
function renderMessage(message, by, dt=null) {
let message_time = formatDate(dt ?? new Date());
let by_name = by == "khoj" ? "🏮 Khoj" : "🤔 You";
let formattedMessage = formatHTMLMessage(message);
// Generate HTML for Chat Message and Append to Chat Body
document.getElementById("chat-body").innerHTML += `
<div data-meta="${by_name} at ${message_time}" class="chat-message ${by}">
<div class="chat-message-text ${by}">${formattedMessage}</div>
</div>
`;
// Scroll to bottom of chat-body element
document.getElementById("chat-body").scrollTop = document.getElementById("chat-body").scrollHeight;
}
function renderMessageWithReference(message, by, context=null, dt=null) {
let references = '';
if (context) {
references = context
.map((reference, index) => generateReference(reference, index))
.join("<sup>,</sup>");
}
renderMessage(message+references, by, dt);
}
function formatHTMLMessage(htmlMessage) {
// Replace any ``` with <div class="programmatic-output">
let newHTML = htmlMessage.replace(/```([\s\S]*?)```/g, '<div class="programmatic-output"><button class="copy-button" onclick="copyProgrammaticOutput(event)">Copy</button>$1</div>');
// Replace any ** with <b> and __ with <u>
newHTML = newHTML.replace(/\*\*([\s\S]*?)\*\*/g, '<b>$1</b>');
newHTML = newHTML.replace(/__([\s\S]*?)__/g, '<u>$1</u>');
return newHTML;
}
async function chat() {
// Extract required fields for search from form
let query = document.getElementById("chat-input").value.trim();
let resultsCount = localStorage.getItem("khojResultsCount") || 5;
console.log(`Query: ${query}`);
// Short circuit on empty query
if (query.length === 0)
return;
// Add message by user to chat body
renderMessage(query, "you");
document.getElementById("chat-input").value = "";
autoResize();
document.getElementById("chat-input").setAttribute("disabled", "disabled");
let hostURL = await window.hostURLAPI.getURL();
// Generate backend API URL to execute query
let url = `${hostURL}/api/chat?q=${encodeURIComponent(query)}&n=${resultsCount}&client=web&stream=true`;
const khojToken = await window.tokenAPI.getToken();
const headers = { 'Authorization': `Bearer ${khojToken}` };
let chat_body = document.getElementById("chat-body");
let new_response = document.createElement("div");
new_response.classList.add("chat-message", "khoj");
new_response.attributes["data-meta"] = "🏮 Khoj at " + formatDate(new Date());
chat_body.appendChild(new_response);
let newResponseText = document.createElement("div");
newResponseText.classList.add("chat-message-text", "khoj");
new_response.appendChild(newResponseText);
// Temporary status message to indicate that Khoj is thinking
let loadingSpinner = document.createElement("div");
loadingSpinner.classList.add("spinner");
newResponseText.appendChild(loadingSpinner);
document.getElementById("chat-body").scrollTop = document.getElementById("chat-body").scrollHeight;
let chatTooltip = document.getElementById("chat-tooltip");
chatTooltip.style.display = "none";
let chatInput = document.getElementById("chat-input");
chatInput.classList.remove("option-enabled");
// Call specified Khoj API which returns a streamed response of type text/plain
fetch(url, { headers })
.then(response => {
const reader = response.body.getReader();
const decoder = new TextDecoder();
function readStream() {
reader.read().then(({ done, value }) => {
if (done) {
// Evaluate the contents of new_response_text.innerHTML after all the data has been streamed
const currentHTML = newResponseText.innerHTML;
newResponseText.innerHTML = formatHTMLMessage(currentHTML);
return;
}
// Decode message chunk from stream
const chunk = decoder.decode(value, { stream: true });
if (chunk.includes("### compiled references:")) {
const additionalResponse = chunk.split("### compiled references:")[0];
newResponseText.innerHTML += additionalResponse;
const rawReference = chunk.split("### compiled references:")[1];
const rawReferenceAsJson = JSON.parse(rawReference);
let polishedReference = rawReferenceAsJson.map((reference, index) => generateReference(reference, index))
.join("<sup>,</sup>");
newResponseText.innerHTML += polishedReference;
document.getElementById("chat-body").scrollTop = document.getElementById("chat-body").scrollHeight;
readStream();
} else {
// Display response from Khoj
if (newResponseText.getElementsByClassName("spinner").length > 0) {
newResponseText.removeChild(loadingSpinner);
}
newResponseText.innerHTML += chunk;
readStream();
}
// Scroll to bottom of chat window as chat response is streamed
document.getElementById("chat-body").scrollTop = document.getElementById("chat-body").scrollHeight;
});
}
readStream();
document.getElementById("chat-input").removeAttribute("disabled");
});
}
function incrementalChat(event) {
if (!event.shiftKey && event.key === 'Enter') {
chat();
}
}
function onChatInput() {
let chatInput = document.getElementById("chat-input");
chatInput.value = chatInput.value.trimStart();
if (chatInput.value.startsWith("/") && chatInput.value.split(" ").length === 1) {
let chatTooltip = document.getElementById("chat-tooltip");
chatTooltip.style.display = "block";
let helpText = "<div>";
const command = chatInput.value.split(" ")[0].substring(1);
for (let key in chatOptions) {
if (!!!command || key.startsWith(command)) {
helpText += "<b>/" + key + "</b>: " + chatOptions[key] + "<br>";
}
}
chatTooltip.innerHTML = helpText;
} else if (chatInput.value.startsWith("/")) {
const firstWord = chatInput.value.split(" ")[0];
if (firstWord.substring(1) in chatOptions) {
chatInput.classList.add("option-enabled");
} else {
chatInput.classList.remove("option-enabled");
}
let chatTooltip = document.getElementById("chat-tooltip");
chatTooltip.style.display = "none";
} else {
let chatTooltip = document.getElementById("chat-tooltip");
chatTooltip.style.display = "none";
chatInput.classList.remove("option-enabled");
}
autoResize();
}
function autoResize() {
const textarea = document.getElementById('chat-input');
const scrollTop = textarea.scrollTop;
textarea.style.height = '0';
const scrollHeight = textarea.scrollHeight;
textarea.style.height = Math.min(scrollHeight, 200) + 'px';
textarea.scrollTop = scrollTop;
document.getElementById("chat-body").scrollTop = document.getElementById("chat-body").scrollHeight;
}
window.addEventListener('load', async() => {
await loadChat();
});
async function loadChat() {
const hostURL = await window.hostURLAPI.getURL();
const khojToken = await window.tokenAPI.getToken();
const headers = { 'Authorization': `Bearer ${khojToken}` };
fetch(`${hostURL}/api/chat/history?client=web`, { headers })
.then(response => response.json())
.then(data => {
if (data.detail) {
// If the server returns a 500 error with detail, render a setup hint.
renderMessage("Hi 👋🏾, to get started you have two options:<ol><li><b>Use OpenAI</b>: <ol><li>Get your <a class='inline-chat-link' href='https://platform.openai.com/account/api-keys'>OpenAI API key</a></li><li>Save it in the Khoj <a class='inline-chat-link' href='/config/processor/conversation/openai'>chat settings</a></li><li>Click Configure on the Khoj <a class='inline-chat-link' href='/config'>settings page</a></li></ol></li><li><b>Enable offline chat</b>: <ol><li>Go to the Khoj <a class='inline-chat-link' href='/config'>settings page</a> and enable offline chat</li></ol></li></ol>", "khoj");
// Disable chat input field and update placeholder text
document.getElementById("chat-input").setAttribute("disabled", "disabled");
document.getElementById("chat-input").setAttribute("placeholder", "Configure Khoj to enable chat");
} else {
// Set welcome message on load
renderMessage("Hey 👋🏾, what's up?", "khoj");
}
return data.response;
})
.then(response => {
// Render conversation history, if any
response.forEach(chat_log => {
renderMessageWithReference(chat_log.message, chat_log.by, chat_log.context, new Date(chat_log.created));
});
})
.catch(err => {
return;
});
fetch(`${hostURL}/api/chat/options`, { headers })
.then(response => response.json())
.then(data => {
// Render chat options, if any
if (data) {
chatOptions = data;
}
})
.catch(err => {
return;
});
// Fill query field with value passed in URL query parameters, if any.
var query_via_url = new URLSearchParams(window.location.search).get("q");
if (query_via_url) {
document.getElementById("chat-input").value = query_via_url;
chat();
}
}
</script>
<body>
<div id="khoj-banner-container" class="khoj-banner-container">
</div>
<!--Add Header Logo and Nav Pane-->
<div class="khoj-header">
<a class="khoj-logo" href="/">
<img class="khoj-logo" src="./assets/icons/khoj-logo-sideways-500.png" alt="Khoj"></img>
</a>
<nav class="khoj-nav">
<a class="khoj-nav khoj-nav-selected" href="./chat.html">💬 Chat</a>
<a class="khoj-nav" href="./search.html">🔎 Search</a>
<a class="khoj-nav" href="./config.html">⚙️ Settings</a>
</nav>
</div>
<!-- Chat Body -->
<div id="chat-body"></div>
<!-- Chat Footer -->
<div id="chat-footer">
<div id="chat-tooltip" style="display: none;"></div>
<textarea id="chat-input" class="option" oninput="onChatInput()" onkeyup=incrementalChat(event) autofocus="autofocus" placeholder="Type / to see a list of commands, or just type your questions and hit enter.">
</textarea>
</div>
</body>
<style>
html, body {
height: 100%;
width: 100%;
padding: 0px;
margin: 0px;
}
body {
display: grid;
background: #fff;
color: #475569;
text-align: center;
font-family: roboto, karma, segoe ui, sans-serif;
font-size: small;
font-weight: 300;
line-height: 1.5em;
}
body > * {
padding: 10px;
margin: 10px;
}
#chat-body {
font-size: small;
margin: 0px;
line-height: 20px;
overflow-y: scroll; /* Make chat body scroll to see history */
}
/* add chat metatdata to bottom of bubble */
.chat-message::after {
content: attr(data-meta);
display: block;
font-size: x-small;
color: #475569;
margin: -8px 4px 0 -5px;
}
/* move message by khoj to left */
.chat-message.khoj {
margin-left: auto;
text-align: left;
}
/* move message by you to right */
.chat-message.you {
margin-right: auto;
text-align: right;
white-space: pre-line;
}
/* basic style chat message text */
.chat-message-text {
margin: 10px;
border-radius: 10px;
padding: 10px;
position: relative;
display: inline-block;
max-width: 80%;
text-align: left;
}
/* color chat bubble by khoj blue */
.chat-message-text.khoj {
color: var(--primary-inverse);
background: var(--primary);
margin-left: auto;
white-space: pre-line;
}
/* Spinner symbol when the chat message is loading */
.spinner {
border: 4px solid #f3f3f3;
border-top: 4px solid var(--primary-inverse);
border-radius: 50%;
width: 12px;
height: 12px;
animation: spin 2s linear infinite;
margin: 0px 0px 0px 10px;
display: inline-block;
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
/* add left protrusion to khoj chat bubble */
.chat-message-text.khoj:after {
content: '';
position: absolute;
bottom: -2px;
left: -7px;
border: 10px solid transparent;
border-top-color: var(--primary);
border-bottom: 0;
transform: rotate(-60deg);
}
/* color chat bubble by you dark grey */
.chat-message-text.you {
color: #f8fafc;
background: #475569;
margin-right: auto;
}
/* add right protrusion to you chat bubble */
.chat-message-text.you:after {
content: '';
position: absolute;
top: 91%;
right: -2px;
border: 10px solid transparent;
border-left-color: #475569;
border-right: 0;
margin-top: -10px;
transform: rotate(-60deg)
}
#chat-footer {
padding: 0;
display: grid;
grid-template-columns: minmax(70px, 100%);
grid-column-gap: 10px;
grid-row-gap: 10px;
}
#chat-footer > * {
padding: 15px;
border-radius: 5px;
border: 1px solid #475569;
background: #f9fafc
}
.option:hover {
box-shadow: 0 0 11px #aaa;
}
#chat-input {
font-family: roboto, karma, segoe ui, sans-serif;
font-size: small;
height: 54px;
resize: none;
overflow-y: hidden;
max-height: 200px;
box-sizing: border-box;
padding: 15px;
line-height: 1.5em;
margin: 0;
}
#chat-input:focus {
outline: none !important;
}
.option-enabled {
box-shadow: 0 0 12px rgb(119, 156, 46);
}
.option-enabled:focus {
outline: none !important;
border:1px solid #475569;
box-shadow: 0 0 16px var(--primary);
}
a.inline-chat-link {
color: #475569;
text-decoration: none;
border-bottom: 1px dotted #475569;
}
@media (pointer: coarse), (hover: none) {
abbr[title] {
position: relative;
padding-left: 4px; /* space references out to ease tapping */
}
abbr[title]:focus:after {
content: attr(title);
/* position tooltip */
position: absolute;
left: 16px; /* open tooltip to right of ref link, instead of on top of it */
width: auto;
z-index: 1; /* show tooltip above chat messages */
/* style tooltip */
background-color: #aaa;
color: #f8fafc;
border-radius: 2px;
box-shadow: 1px 1px 4px 0 rgba(0, 0, 0, 0.4);
font-size small;
padding: 2px 4px;
}
}
@media only screen and (max-width: 600px) {
body {
grid-template-columns: 1fr;
grid-template-rows: auto auto minmax(80px, 100%) auto;
}
body > * {
grid-column: 1;
}
#chat-footer {
padding: 0;
margin: 4px;
grid-template-columns: auto;
}
a.khoj-banner {
display: block;
}
p.khoj-banner {
padding: 0;
}
}
@media only screen and (min-width: 600px) {
body {
grid-template-columns: auto min(70vw, 100%) auto;
grid-template-rows: auto auto minmax(80px, 100%) auto;
}
body > * {
grid-column: 2;
}
}
div.khoj-banner-container {
padding: 0px;
margin: 0px;
}
div#chat-tooltip {
text-align: left;
font-size: medium;
}
@keyframes gradient {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
a.khoj-logo {
text-align: center;
}
button#khoj-banner-submit,
input#khoj-banner-email {
padding: 10px;
border-radius: 5px;
border: 1px solid #475569;
background: #f9fafc;
}
button#khoj-banner-submit:hover,
input#khoj-banner-email:hover {
box-shadow: 0 0 11px #aaa;
}
div.khoj-banner-container-hidden {
margin: 0px;
padding: 0px;
}
div.programmatic-output {
background-color: #f5f5f5;
border: 1px solid #ddd;
border-radius: 3px;
box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05);
color: #333;
font-family: monospace;
font-size: small;
line-height: 1.5;
margin: 10px 0;
overflow-x: auto;
padding: 10px;
white-space: pre-wrap;
}
</style>
</html>