webinterface/client/js/chat.js

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JavaScript
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let chatCount = 0; // Zähler für Chat-Sessions
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let currentChatId = null; // Aktuell angezeigte Chat-ID
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let useMarkdown = true;
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document.getElementById('newChatButton').addEventListener('click', () => {
createNewChat();
});
document.getElementById('sendButton').addEventListener('click', () => {
const chatBox = document.getElementById('chatBox');
const chatInput = document.getElementById('chatInput');
const messageText = chatInput.value.trim();
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if (messageText !== '' && currentChatId !== null) { // Stelle sicher, dass eine Chat-ID vorhanden ist
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const messageElement = document.createElement('div');
messageElement.classList.add('chat-message', 'user');
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//messageElement.innerText = messageText;
if (useMarkdown) {
messageElement.innerHTML = renderMarkdown(messageText);
} else {
messageElement.innerText = messageText;
}
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chatBox.prepend(messageElement);
// Nachricht speichern
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saveMessage(currentChatId, messageText); // Verwende die aktuelle Chat-ID
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// Sidebar-Button für den Chat-Verlauf erstellen, falls noch nicht vorhanden
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if (document.getElementById(`chatSession-${currentChatId}`) === null) {
createChatSessionButton(currentChatId);
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}
chatInput.value = ''; // Input-Feld leeren
}
});
function createNewChat() {
// Erhöhe den Chat-Zähler und erstelle einen neuen Chat
const newChatId = chatCount++;
localStorage.setItem(`chatHistory-${newChatId}`, JSON.stringify([])); // Leeren Chat speichern
createChatSessionButton(newChatId); // Button für den neuen Chat erstellen
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currentChatId = newChatId; // Setze die aktuelle Chat-ID
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loadChatHistory(currentChatId); // Lade den neuen Chat
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}
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async function saveMessage(chatId, message) {
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const chatHistory = JSON.parse(localStorage.getItem(`chatHistory-${chatId}`)) || [];
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chatHistory.push({ role: "user", content: message });
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localStorage.setItem(`chatHistory-${chatId}`, JSON.stringify(chatHistory));
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// Aktualisiere den Button-Text in der Sidebar
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updateChatSessionButton(chatId);
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// Sende die Nachricht an den Chatbot
const userMessage = getLastUserMessage();
if (userMessage) {
let a = await stream_api_open_ai(userMessage);
console.log("Komplette Nachricht: " + a)
const chatHistory = JSON.parse(localStorage.getItem(`chatHistory-${chatId}`)) || [];
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chatHistory.push({ role: "assistant", content: a });
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localStorage.setItem(`chatHistory-${chatId}`, JSON.stringify(chatHistory));
}
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}
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function updateChatSessionButton(chatId) {
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const button = document.getElementById(`chatSession-${chatId}`);
if (button) {
const chatHistory = JSON.parse(localStorage.getItem(`chatHistory-${chatId}`)) || [];
// Hole die erste Nachricht oder lasse es leer, wenn keine vorhanden ist
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const chatName = chatHistory.length > 0 ? chatHistory[0].content.slice(0, 10) : ''; // Nimm die ersten 10 Zeichen der ersten Nachricht
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button.innerText = chatName + "..." || `Chat ${chatId + 1}`; // Falls leer, setze auf "Chat x"
}
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}
function createChatSessionButton(chatId) {
const chatList = document.getElementById('chatList');
// Container für Chat-Button und Löschen-Button
const buttonContainer = document.createElement('div');
buttonContainer.classList.add('chat-session-button-container');
// Chat-Button
const button = document.createElement('button');
button.classList.add('chat-session-button');
button.id = `chatSession-${chatId}`;
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button.innerText = `Chat ${chatId + 1}`; // Vorläufiger Name
button.addEventListener('click', () => {
loadChatHistory(chatId); // Lade den Chat-Verlauf und setze die aktuelle Chat-ID
currentChatId = chatId; // Setze die aktuelle Chat-ID auf die ausgewählte Chat-ID
});
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// Löschen-Button
const deleteButton = document.createElement('button');
deleteButton.classList.add('delete-chat-button');
deleteButton.innerText = "✕";
deleteButton.addEventListener('click', (event) => {
event.stopPropagation(); // Verhindert, dass der Chat geladen wird, wenn auf Löschen geklickt wird
deleteChat(chatId, buttonContainer);
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clearChat();
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});
// Elemente hinzufügen
buttonContainer.appendChild(button);
buttonContainer.appendChild(deleteButton);
chatList.appendChild(buttonContainer);
}
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function clearChat(){
const chatBox = document.getElementById('chatBox');
chatBox.innerHTML = ''; // Aktuellen Chat leeren
}
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function loadChatHistory(chatId) {
const chatBox = document.getElementById('chatBox');
chatBox.innerHTML = ''; // Aktuellen Chat leeren
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if (currentChatId === null) {
return; // Wenn kein Chat ausgewählt ist, nichts laden
}
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const chatHistory = JSON.parse(localStorage.getItem(`chatHistory-${chatId}`)) || [];
chatHistory.forEach(entry => {
const messageElement = document.createElement('div');
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messageElement.classList.add('chat-message', entry.role);
messageElement.innerText = entry.content;
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chatBox.prepend(messageElement);
});
}
function deleteChat(chatId, buttonContainer) {
// Entferne den Chat-Verlauf aus dem LocalStorage
localStorage.removeItem(`chatHistory-${chatId}`);
// Entferne den Button aus der Sidebar
buttonContainer.remove();
}
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// Lade alle Chat-Sitzungen beim Start
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function loadAllChatSessions() {
Object.keys(localStorage).forEach((key) => {
if (key.startsWith('chatHistory-')) {
const chatId = parseInt(key.split('-')[1], 10);
createChatSessionButton(chatId);
chatCount = Math.max(chatCount, chatId + 1); // Chat-Zähler aktualisieren
}
});
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console.log(chatCount)
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for (let i = 0; i < chatCount; i++) {// Aktualisiere die Namen an der Seite
updateChatSessionButton(i);
}
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// Lade den neuesten Chat-Verlauf
if (chatCount > 0) {
loadChatHistory(chatCount - 1);
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currentChatId = chatCount - 1; // Setze die aktuelle Chat-ID
} else {
const chatBox = document.getElementById('chatBox');
chatBox.innerHTML = ''; // Chat-Box leer, wenn keine Chats existieren
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}
}
// Beim Laden der Seite alle Chat-Sitzungen laden
window.addEventListener('DOMContentLoaded', loadAllChatSessions);
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const chatInput = document.getElementById('chatInput');
// Event-Listener für das Senden der Nachricht und das Erstellen eines Zeilenumbruchs
chatInput.addEventListener('keydown', (event) => {
if (event.key === 'Enter') {
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if (currentChatId == null){
createNewChat();
}
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// Prüfen, ob die Shift-Taste nicht gedrückt wird
if (!event.shiftKey) {
event.preventDefault(); // Verhindert das Standardverhalten (Absenden des Formulars)
const messageText = chatInput.value.trim();
if (messageText !== '' && currentChatId !== null) {
const messageElement = document.createElement('div');
messageElement.classList.add('chat-message', 'user');
messageElement.innerText = messageText;
document.getElementById('chatBox').prepend(messageElement);
// Nachricht speichern
saveMessage(currentChatId, messageText);
// Sidebar-Button für den Chat-Verlauf erstellen, falls noch nicht vorhanden
if (document.getElementById(`chatSession-${currentChatId}`) === null) {
createChatSessionButton(currentChatId);
}
chatInput.value = ''; // Input-Feld leeren
}
} else {
// Shift + Enter: Zeilenumbruch
chatInput.value += '\n'; // Zeilenumbruch in das Textfeld einfügen
}
}
});
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/* OpenAI zeug */
async function getModels() {
try {
const response = await fetch(`http://localhost:8015/v1/models`, {
method: 'GET',
headers: {
'Authorization': `Bearer YOUR_API_KEY`,
'Content-Type': 'application/json',
}
});
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const models = await response.json();
return models.data[0].id
} catch (error) {
console.error('Error fetching models:', error);
}
}
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function getAllCurrentChatMessages() {
const cookieData = JSON.parse(localStorage.getItem(`chatHistory-${currentChatId}`)) || [];
return cookieData
}
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function getLastUserMessage() {
// Lade die Cookie-Daten (ersetze dies durch den tatsächlichen Weg zur Cookie-Datenstruktur)
const cookieData = JSON.parse(localStorage.getItem(`chatHistory-${currentChatId}`)) || [];
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// Filter nur die User-Nachrichten heraus
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const userMessages = cookieData.filter(message => message.role === "user");
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// Falls es User-Nachrichten gibt, die letzte davon zurückgeben
if (userMessages.length > 0) {
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return userMessages[userMessages.length - 1].content;
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}
return ''; // Rückgabe eines leeren Strings, falls keine Nachricht gefunden wird
}
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function renderMarkdown(content) {
return marked.parse(content);
}
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async function stream_api_open_ai(userMessage) {
// Neues div-Element für die Antwort des Chatbots erstellen
const chatBox = document.getElementById('chatBox');
const botMessageDiv = document.createElement('div');
botMessageDiv.className = 'chat-message bot';
chatBox.prepend(botMessageDiv);
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const response = await fetch('http://localhost:8015/v1/chat/completions', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': `Bearer YOUR_API_KEY`,
},
body: JSON.stringify({
model: await getModels(),
messages: [
{ role: 'system', content: 'You are a knowledgeable assistant.' },
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...getAllCurrentChatMessages()
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],
stream: true,
temperature: 0.3
})
});
const reader = response.body.getReader();
const decoder = new TextDecoder('utf-8');
let result = '';
while (true) {
const { done, value } = await reader.read();
if (done) break;
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const chunk = decoder.decode(value, { stream: true });
const lines = chunk.split('\n');
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for (const line of lines) {
if (line && line.includes('data: ')) {
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const jsonStr = line.replace('data: ', '').trim();
if (jsonStr === '[DONE]'){
break;
}
try {
const json = JSON.parse(jsonStr);
if (json.choices[0].delta.content) {
const token = json.choices[0].delta.content;
result += token;
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if (useMarkdown) {
botMessageDiv.innerHTML = renderMarkdown(result);
} else {
botMessageDiv.textContent = result;
}
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}
} catch (error) {
console.error('Error parsing JSON:', error, 'Received:', jsonStr);
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}
}
}
}
return result;
}