feat(webllm): Added LLM chat boostlet

examples/webllm.js

@@ -0,0 +1,304 @@
+script = document.createElement("script");
+script.type = "text/javascript";
+//script.src = "https://boostlet.org/dist/boostlet.min.js";
+// script.src = "http://localhost:5500/dist/boostlet.min.js";
+script.src = "https://gaiborjosue.github.io/boostlet/dist/boostlet.min.js";
+
+script.onload = run;
+document.head.appendChild(script);
+eval(script);
+
+async function run() {
+  // detect visualization framework
+  Boostlet.init();
+
+  const script = document.createElement("script");
+  script.type = "module";
+  script.src = "https://mpsych.github.io/cdn/web-llm/web-llm-cdn.js";
+  document.head.appendChild(script);
+
+  script.onload = async () => {
+    // Import the module
+    const module = await import(script.src);
+    window.webllm = module;
+    const chatUI = new ChatUI();
+    chatUI.setupChatUI();
+    chatUI.populateModelSelector();
+  };
+}
+
+class ChatUI {
+  constructor() {
+    this.engine = null;
+    this.uiChat = null;
+    this.uiInput = null;
+    this.uiSendBtn = null;
+    this.uiResetBtn = null;
+  }
+
+  setupChatUI() {
+    const style = document.createElement("style");
+    style.type = "text/css";
+    style.innerHTML = `
+      .chatui {
+          display: flex;
+          position: fixed;
+          bottom: 0;
+          right: 0;
+          flex-direction: column;
+          width: 350px;
+          height: 600px;
+          border: 2px solid;
+          border-radius: 12px;
+          background-color: #1F2027;
+          z-index: 1000;
+          padding: 10px;
+      }
+      .chatui-select-wrapper {
+          display: flex;
+          justify-content: center;
+          background-color: #1F2027;
+          padding: 10px 0;
+      }
+      #chatui-select {
+          width: 90%;
+          background-color: #1F2027;
+          color: white;
+          height: 70%;
+          align-self: center;
+          border-radius: 5px;
+      }
+      #chatui-select:focus {
+          outline: none;
+      }
+      .chatui-chat {
+          flex: 1;
+          overflow-y: auto;
+          padding: 10px;
+          background-color: #1F2027;
+      }
+      .chatui-inputarea {
+          display: flex;
+          padding: 10px;
+          border-top: 2px solid transparent;
+          background-color: #1F2027;
+      }
+      .chatui-input {
+          flex: 1;
+          background-color: #40414F;
+          color: white;
+          border: none;
+          border-radius: 3px;
+          padding: 10px;
+          font-size: 16px;
+      }
+      .chatui-send-btn, .chatui-reset-btn {
+          background-color: #40414F;
+          color: white;
+          border: none;
+          border-radius: 3px;
+          padding: 10px;
+          cursor: pointer;
+          margin-left: 10px;
+      }
+      .chatui-send-btn:hover, .chatui-reset-btn:hover {
+          background-color: #007EC6;
+      }
+      .msg-bubble {
+          display: flex;
+          align-items: center;
+          background-color: #f0f0f0;
+          border-radius: 8px;
+          padding: 10px;
+          color: black;
+          width: calc(100% - 20px);
+          margin: 5px auto;
+          box-sizing: border-box;
+      }
+      .left-msg .msg-bubble {
+          background-color: #343541; /* LLM Messages */
+          color: #ececec;
+      }
+      .right-msg .msg-bubble {
+          background-color: #444654; /* User Messages */
+          color: #ececec;
+      }
+      .profile-image {
+          width: 30px;
+          height: 30px;
+          border-radius: 50%;
+          margin-right: 10px;
+      }
+      .message-label {
+          font-size: 12px;
+          color: #ccc;
+          text-align: center;
+      }
+      .select-label {
+          font-size: 16px;
+          color: #ccc;
+          text-align: left;
+      }
+
+
+    `;
+    document.head.appendChild(style);
+
+    const chatContainer = document.createElement("div");
+    chatContainer.className = "chatui";
+    document.body.appendChild(chatContainer);
+
+    chatContainer.innerHTML = `
+        <div class="chatui-select-wrapper">
+            <p class="select-label">Select a model to start chatting: </p>
+            <select id="chatui-select">
+                <option selected>Select Model...</option>
+            </select>
+        </div>
+        <div class="chatui-chat" id="chatui-chat"></div>
+        <div class="chatui-inputarea">
+            <input id="chatui-input" type="text" class="chatui-input" placeholder="Enter your message...">
+            <button id="chatui-send-btn" class="chatui-send-btn">Send</button>
+            <button id="chatui-reset-btn" class="chatui-reset-btn">Reset</button>
+        </div>
+    `;
+
+    this.uiChat = document.getElementById("chatui-chat");
+    this.uiInput = document.getElementById("chatui-input");
+    this.uiSendBtn = document.getElementById("chatui-send-btn");
+    this.uiResetBtn = document.getElementById("chatui-reset-btn");
+
+    const chatInput = document.getElementById("chatui-input");
+    chatInput.addEventListener("keypress", function(event) {
+      if (event.key === "Enter") {
+        event.preventDefault();
+        document.getElementById("chatui-send-btn").click();
+
+        // Avoid propagation
+        event.stopPropagation();
+      }
+    });
+
+    Boostlet.hint("Models with “-1k” suffix signify 1024 context length, lowering ~2-3GB VRAM requirement compared to their counterparts. Feel free to start trying with those", 5000);
+  }
+
+  populateModelSelector() {
+    const modelSelect = document.getElementById("chatui-select");
+    webllm.prebuiltAppConfig.model_list.forEach((model, index) => {
+      let option = new Option(model.model_id, model.model_id);
+      modelSelect.add(option);
+    });
+
+    modelSelect.addEventListener("change", (event) => {
+      if (event.target.value !== "Select Model..." && event.target.value !== "") {
+        this.initializeChat(event.target.value);
+      }
+    });
+  }
+
+  async initializeChat(selectedModel) {
+    try {
+      const initProgressCallback = (report) => {
+        this.showProgress(report.text);
+      };
+      this.engine = await webllm.CreateEngine(selectedModel, {
+        initProgressCallback,
+        useWebWorker: true,
+      });
+
+      window.engine = this.engine;
+
+      this.setupEventListeners();
+      this.clearProgress();
+    } catch (error) {
+      Boostlet.hint(`Error: ${error.message}`, 8000);
+    }
+  }
+
+  setupEventListeners() {
+    this.uiSendBtn.addEventListener("click", () => this.sendChatMessage());
+    this.uiResetBtn.addEventListener("click", () => this.resetChat());
+  }
+
+  sendChatMessage() {
+    const message = this.uiInput.value.trim();
+    if (!message) return;
+    this.appendMessage("right-msg", message, "User");
+    this.uiInput.value = "";
+    this.processChatMessage(message);
+  }
+
+  async resetChat() {
+    try {
+      if (this.engine) {
+        this.engine.interruptGenerate();
+        await this.engine.resetChat();
+      }
+      this.uiChat.innerHTML = "";
+      document.getElementById("chatui-select").value = "Select Model...";
+      Boostlet.hint("Reset successful, please select a model to start the conversation.", 5000);
+    } catch (error) {
+      Boostlet.hint(`Error: ${error.message}`, 8000);
+    }
+  }
+
+  appendMessage(className, text, role) {
+    const chat = this.uiChat;
+    const messageWrapper = document.createElement("div");
+    messageWrapper.className = "msg " + className;
+
+    const imgSrc =
+      role === "User"
+        ? "https://raw.githubusercontent.com/gaiborjosue/boostlet/webllm/gfx/user_avatar.png"
+        : "https://raw.githubusercontent.com/gaiborjosue/boostlet/webllm/gfx/llm_avatar.png";
+    const profileImg = `<img src="${imgSrc}" alt="${role}" class="profile-image">`;
+
+    messageWrapper.innerHTML = `
+        <div class="msg-bubble">
+            ${profileImg}
+            <div>
+                <div>${text}</div>
+            </div>
+        </div>
+    `;
+
+    chat.appendChild(messageWrapper);
+    chat.scrollTop = chat.scrollHeight;
+  }
+
+  async processChatMessage(message) {
+    try {
+      const response = await this.engine.chat.completions.create({
+        messages: [{
+            role: "system", "content": "You are a chatbot that will help users answer questions and your name is BoostBot. Start every message with 'BoostBot: ' to make it clear that you are a chatbot."
+        },{
+            role: "user", content: message
+        }]
+      });
+      this.appendMessage("left-msg", response.choices[0].message.content);
+      console.log(await engine.runtimeStatsText());
+    } catch (error) {
+      Boostlet.hint(`Error: ${error.message}`, 8000);
+    }
+  }
+
+  showProgress(text) {
+    let progressBox = document.getElementById("progress-box");
+    if (!progressBox) {
+      progressBox = document.createElement("div");
+      progressBox.id = "progress-box";
+      progressBox.style =
+        "position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); background: rgba(0, 0, 0, 0.75); color: white; padding: 20px; border-radius: 10px; z-index: 1500;";
+      document.body.appendChild(progressBox);
+    }
+    progressBox.innerText = text;
+  }
+
+  clearProgress() {
+    const progressBox = document.getElementById("progress-box");
+    if (progressBox) {
+      document.body.removeChild(progressBox);
+    }
+  }
+}
+

index.html

@@ -230,10 +230,10 @@
     window.onload = function() {
 
 
-        var examples = ['sobel.js', 'segmentanything.js', 'imageCaptioning.js', 'plotly.js', 'trako.js', 'melanoma.js'];
+        var examples = ['sobel.js', 'segmentanything.js', 'imageCaptioning.js', 'plotly.js', 'trako.js', 'melanoma.js', 'webllm.js'];
 
-        var baseurl = 'https://raw.githubusercontent.com/mpsych/boostlet/main/examples/';
-        // var baseurl = 'https://raw.githubusercontent.com/gaiborjosue/boostlet/melanoma/examples/';
+        // var baseurl = 'https://raw.githubusercontent.com/mpsych/boostlet/main/examples/';
+        var baseurl = 'https://raw.githubusercontent.com/gaiborjosue/boostlet/webllm/examples/';
         // var baseurl = 'http://localhost:5500/examples/';
         // var baseurl = 'http://localhost:8000/examples/';
         // var baseurl = 'https://raw.githubusercontent.com/shrutivarade/boostlet/main/examples/';
@@ -247,8 +247,9 @@
 
         }
 
-        var codeurl = 'https://github.com/mpsych/boostlet/blob/main/examples/';
+        // var codeurl = 'http://localhost:5500/examples/';
         // var codeurl = 'https://github.com/shrutivarade/boostlet/blob/main/examples/';
+        var codeurl = 'https://github.com/gaiborjosue/boostlet/blob/webllm/examples/';
 
         for (e in examples) {
 
@@ -298,6 +299,8 @@
                <div><a href='' id='trako.js'><button id='trako.js' class="button">Trako (NiiVue only!)</button></a><br><div style='margin:2px'><a href='' id='trako.js-code' target='_blank'><img src='gfx/badge.svg'></a></div></div>
 
                <div><a href='' id='melanoma.js'><button id='melanoma.js' class="button">Melanoma Predictor</button></a><br><div style='margin:2px'><a href='' id='melanoma.js-code' target='_blank'><img src='gfx/badge.svg'></a></div></div>
+
+               <div><a href='' id='webllm.js'><button id='webllm.js' class="button">LLM Chat</button></a><br><div style='margin:2px'><a href='' id='webllm.js-code' target='_blank'><img src='gfx/badge.svg'></a></div></div>
       </div>
 
       <img src='gfx/2.png' class='imgtext'>