public/utils.js

const utils = {
  Recorder: class Recorder {
    constructor() {
      this.isRecording = false;
      this.mediaRecorder;
      this.encodeType = "audio/mpeg";
      this.language = "en";
      this.recordingColor = "lightblue";
      this.autoStop=true;
    }

    async startRecording(
      targetElement,
      silenceHandler = () => {
        console.log("silence detect");
      },
      autoStop = true
    ) {
      targetElement = targetElement || document.querySelector(`#whisper_voice_button`);

      this.stopRecording();
      console.log("start recording");
      return navigator.mediaDevices
        .getUserMedia({ audio: true })
        .then((stream) => {
          this.mediaRecorder = new MediaRecorder(stream);

          let silenceStart = Date.now();
          let silenceDuration = 0;

          let mediaRecorder = this.mediaRecorder;
          let audioChunks = [];
          mediaRecorder.start();
          this.isRecording = true;
          targetElement.style.backgroundColor = "rgba(173, 216, 230, 0.3)";

          let volumeInterval;
          let audioContext;
          audioContext = new AudioContext();
          const analyser = audioContext.createAnalyser();
          const microphone = audioContext.createMediaStreamSource(
            mediaRecorder.stream
          );
          microphone.connect(analyser);
          analyser.fftSize = 512;
          const bufferLength = analyser.frequencyBinCount;
          const dataArray = new Uint8Array(bufferLength);

          const updateButtonFontSize = () => {
            analyser.getByteFrequencyData(dataArray);
            let sum = 0;
            for (let i = 0; i < bufferLength; i++) {
              sum += dataArray[i];
            }
            let averageVolume = sum / bufferLength;
            if (averageVolume < 10) {
              silenceDuration = Date.now() - silenceStart;
              if (silenceDuration > 1000) {
                silenceHandler();
              }
            } else {
              silenceStart = Date.now();
            }

            let scale = 3 + averageVolume / 15;
            targetElement.style.transform = `scale(${scale})`;
          };

          volumeInterval = setInterval(updateButtonFontSize, 100);

          mediaRecorder.addEventListener("dataavailable", (event) => {
            console.log("dataavailable");
            audioChunks.push(event.data);
          });

          return new Promise((resolve, reject) => {
            mediaRecorder.addEventListener("stop", async () => {
              this.isRecording = false;
              console.log("stop");
              clearInterval(volumeInterval);
              const audioBlob = new Blob(audioChunks, {
                type: this.encodeType,
              });
              targetElement.style.transform = `scale(1)`;
              targetElement.style.background = "transparent";

              audioContext?.close();
              mediaRecorder.stream.getTracks().forEach((track) => track.stop());
              console.log("resolved ");
              resolve(audioBlob);
            });
          });
        })
        .catch((error) => {
          if (
            error.name === "PermissionDeniedError" ||
            error.name === "NotAllowedError"
          ) {
            console.error("User denied permission to access audio");
            console.log("Audio permission denied");
          } else {
            console.error(
              "An error occurred while accessing the audio device",
              error
            );
          }
        });
    }

    async startRecordingWithSilenceDetection(
      targetElement,silenceHandler = () => console.log("silence detect")) {

     let autoStop = this.autoStop || true;
      this.stopRecording();
      console.log("start recording");
      return navigator.mediaDevices
        .getUserMedia({ audio: true })
        .then((stream) => {
          this.mediaRecorder = new MediaRecorder(stream);

          let startTime = Date.now();

          let isSilent = false;
          let isLongSilent = true;
          let silenceStart = Date.now();
          let silenceDuration = 0;

          let mediaRecorder = this.mediaRecorder;
          let audioChunks = [];
          mediaRecorder.start();
          this.isRecording = true;
          targetElement.style.backgroundColor = "rgba(173, 216, 230, 0.3)";

          let volumeInterval;
          let audioContext;
          audioContext = new AudioContext();
          const analyser = audioContext.createAnalyser();
          const microphone = audioContext.createMediaStreamSource(
            mediaRecorder.stream
          );
          microphone.connect(analyser);
          analyser.fftSize = 512;
          const bufferLength = analyser.frequencyBinCount;
          const dataArray = new Uint8Array(bufferLength);

          const handleAudioData = () => {
            analyser.getByteFrequencyData(dataArray);
            let sum = 0;
            for (let i = 0; i < bufferLength; i++) {
              sum += dataArray[i];
            }
            let averageVolume = sum / bufferLength;

            if (averageVolume < 15) {
              if (isSilent) {
                silenceDuration = Date.now() - silenceStart;
                if (silenceDuration > 3000) {
                  isLongSilent = true;
                  mediaRecorder.requestData();
                  silenceStart = Date.now();
                }
              } else {
                silenceDuration = Date.now() - silenceStart;
                if (silenceDuration > 1000) {
                  isSilent = true;
                  console.log('change isSilent to true');

                  mediaRecorder.requestData();
                }
              }
            } else {
              isSilent = false;
              isLongSilent = false;
              silenceStart = Date.now();
            }

            let scale = 3 + averageVolume / 15;
            targetElement.style.transform = `scale(${scale})`;
          };
          volumeInterval = setInterval(handleAudioData, 100);

          let counter = 0;
          let firstdata;
          setTimeout(() => {
            mediaRecorder.requestData();
          }, 200);
          mediaRecorder.addEventListener("dataavailable", (event) => {
            if (autoStop === true) {
              if (Date.now() - startTime > 600000) {
                mediaRecorder.stop();
              }
            }
            counter++;
            if (counter <= 1) {
              firstdata = event.data;
              if (event.data.size > 0) {
                audioChunks.push(event.data);
              }
              return;
            }
            console.log("dataavailable", event.data);
            if (isLongSilent) {
              console.log("dataavailable,Long silent will do noting", event.data);
              return;
            }

            silenceHandler(new Blob([firstdata, event.data], { type: mediaRecorder.mimeType }));
          });

          return new Promise((resolve, reject) => {
            mediaRecorder.addEventListener("stop", async () => {
              this.isRecording = false;
              console.log("stop");
              clearInterval(volumeInterval);
              const audioBlob = new Blob(audioChunks, {
                type: this.encodeType,
              });
              targetElement.style.transform = `scale(1)`;
              targetElement.style.background = "transparent";

              audioContext?.close();
              mediaRecorder.stream.getTracks().forEach((track) => track.stop());
              console.log("resolved ");
              resolve(audioBlob);
            });
          });
        })
        .catch((error) => {
          if (
            error.name === "PermissionDeniedError" ||
            error.name === "NotAllowedError"
          ) {
            console.error("User denied permission to access audio");
            showNotification("Audio permission denied");
          } else {
            console.error(
              "An error occurred while accessing the audio device",
              error
            );
            showNotification("Error accessing audio device");
          }
        });
    }

    stopRecording() {
      this.isRecording = false;

      this.mediaRecorder?.stop();
      this.mediaRecorder?.audioContext?.close();
      this.mediaRecorder?.stream?.getTracks().forEach((track) => track.stop());
    }
  },
  tts: function synthesizeSpeech(text = 'test text', voice = 'alloy') {
    let url = `https://tts.grapee.ddnsfree.com/tts/${encodeURIComponent(text)}`;

    let container = document.getElementById("devlent_tts_container");
    if (!container) {
      container = document.createElement("div");
      container.id = "devlent_tts_container";
      document.body.appendChild(container);
    }

    let audio = document.getElementById("tts_audio");
    if (!audio) {
      audio = document.createElement("audio");
      audio.id = "tts_audio";
      container.appendChild(audio);

      let button = document.createElement("button");
      button.innerHTML = "x";
      button.style.backgroundColor = 'transparent';
      button.style.marginLeft = '10px';

      button.addEventListener('pointerdown', () => container.style.display = "none")
      let br = document.createElement('br');

      container.prepend(br);
      container.prepend(button);
    }

    container.style.display = "block";
    container.style.position = "fixed";
    container.style.bottom = "0";
    container.style.right = "0";
    container.style.height = 'fit-content'

    if (!text) return;
    audio.src = url;
    audio.controls = true;
    audio.autoplay = true;

    utils.dragElement(container, container)
  },
  stt: async (audioBlob) => {
    const formData = new FormData();
    formData.append("file", audioBlob, "audio.mp3");
    formData.append("model", "whisper-large-v3");

    try {
      const response = await fetch('/openai/v1/audio/transcriptions', {
        method: 'POST',
        body: formData
      });

      if (!response.ok) {
        throw new Error(`Error: ${response.status} ${response.statusText}`);
      }

      const data = await response.json();
      return data;
    } catch (error) {
      console.error('There was an error with the transcription request:', error);
    }


  },

  checkValidString(str) {
    if (str === undefined || str === null || str.trim() === "") {
      return false;
    }
    if (str === "undefined" || str === "null") {
      return false;
    }
    return true;
  },
  getCurrentLineString(element) {
    const selection = window.getSelection();
    const range = selection.getRangeAt(0);
    const node = range.startContainer;
    const offset = range.startOffset;

    if (node.nodeType === Node.TEXT_NODE) {
      const text = node.textContent;
      const lineStart = text.lastIndexOf('\n', offset) + 1;
      const lineEnd = text.indexOf('\n', offset);
      const line = lineEnd === -1 ? text.slice(lineStart) : text.slice(lineStart, lineEnd);
      return line;
    }

    const walker = document.createTreeWalker(element, NodeFilter.SHOW_TEXT);
    let currentNode, currentLine = '';

    while (currentNode = walker.nextNode()) {
      const text = currentNode.textContent;
      const lines = text.split('\n');

      for (let i = 0; i < lines.length; i++) {
        if (range.intersectsNode(currentNode)) {
          currentLine = lines[i];
          break;
        }
      }

      if (currentLine !== '') {
        break;
      }
    }

    return currentLine;
  },
  isEditableElement: function isEditableElement(element) {
    while (element) {
      if (element.contentEditable === "true") {
        return true;
      }
      element = element.parentElement;
    }
    return false;
  },
  disableSelect: function disableSelect(element) {
    element.style.userSelect = "none";

    element.addEventListener("pointerdown", (e) => {
      e.preventDefault();
    });
  },
  getSelectionText: function getSelectionText() {
    let activeElement = document.activeElement;
    if (activeElement && activeElement.value) {
      return activeElement.value.substring(
        activeElement.selectionStart,
        activeElement.selectionEnd
      );
    } else {
      return window.getSelection().toString();
    }
  },
  makeButtonFeedback: function makeButtonFeedback(button) {
    let originalColor = button.style.backgroundColor || "white";

    button.addEventListener("pointerdown", function () {
      button.style.backgroundColor = "lightblue";
    });
    button.addEventListener("pointerup", function () {
      setTimeout(() => { button.style.backgroundColor = originalColor; }, 1000)
    });

    button.addEventListener("pointercancel", function () {
      setTimeout(() => { button.style.backgroundColor = originalColor; }, 1000)
    });
  },
  showToast: function showToast(
    text,
    x = 0,
    y = 0,
    w = 200,
    h = 0,
    duration = 1000,
    zIndex = 9999
  ) {
    const textArea = document.createElement("textarea");
    textArea.value = text;
    textArea.style.width = w + "px";
    textArea.style.height = h === 0 ? "auto" : h + "px";
    textArea.style.borderWidth = "0";
    textArea.style.outline = "none";
    textArea.style.position = "fixed";
    textArea.style.left = x + "px";
    textArea.style.top = y + "px";
    textArea.style.zIndex = zIndex;
    textArea.disabled = true;
    document.body.appendChild(textArea);
    setTimeout(() => {
      document.body.removeChild(textArea);
    }, duration);
  },
  copyToClipboard: function copyToClipboard(text) {
    const textArea = document.createElement("textarea");
    textArea.value = text;
    textArea.style.width = "50%";
    textArea.style.height = "100px";
    textArea.style.borderWidth = "0";
    textArea.style.outline = "none";
    textArea.style.position = "fixed";
    textArea.style.left = "0";
    textArea.style.top = "0";
    textArea.style.zIndex = "9999999";
    document.body.appendChild(textArea);
    textArea.select();
    document.execCommand("copy");
    textArea.disabled = true;
    textArea.value = "copyed to clipboard \n" + textArea.value;
    textArea.scrollTo(10000, 100000);
    setTimeout(() => {
      document.body.removeChild(textArea);
    }, 4000);
  },

  writeText: function writeText(targetElement, text, prefix = " ", endfix = " ") {
    console.log("writeText(): ", targetElement);
    document.execCommand("insertText", false, `${prefix}${text}${endfix}`) || utils.copyToClipboard(text);
  },
  dragElement: function dragElement(elmnt, movableElmnt = elmnt.parentElement, speed = 1) {
    elmnt.style.touchAction = "none";
    let pos1 = 0,
      pos2 = 0,
      pos3 = 0,
      pos4 = 0;

    let rmShadeTimeout;
    let shadeDiv;

    elmnt.addEventListener("pointerdown", (e) => {
      dragMouseDown(e);
    });

    function dragMouseDown(e) {
      e = e || window.event;
      e.preventDefault();

      pos3 = e.clientX;
      pos4 = e.clientY;
      document.body.addEventListener("pointermove", elementDrag);
      document.body.addEventListener("pointerup", closeDragElement);

      shadeDiv =
        document.querySelector("#shadeDivForDragElement") ||
        document.createElement("div");
      shadeDiv.id = "shadeDivForDragElement";
      shadeDiv.style.width = "300vw";
      shadeDiv.style.height = "300vh";
      shadeDiv.style.position = "fixed";
      shadeDiv.style.top = "0";
      shadeDiv.style.left = "0";
      shadeDiv.style.backgroundColor = "rgb(230,230,230,0.2)";
      shadeDiv.style.zIndex = 100000;
      document.body.appendChild(shadeDiv);
      rmShadeTimeout = setTimeout(() => {
        let shadeDiv = document.querySelector("#shadeDivForDragElement");
        shadeDiv && document.body.removeChild(shadeDiv);
      }, 10000);
    }

    function elementDrag(e) {
      e = e || window.event;
      e.preventDefault();
      pos1 = pos3 - e.clientX;
      pos2 = pos4 - e.clientY;

      movableElmnt.style.position = "fixed";
      movableElmnt.style.top = e.clientY - elmnt.clientHeight / 2 + "px";
      movableElmnt.style.left = e.clientX - elmnt.clientWidth / 2 + "px";
    }

    function closeDragElement() {
      console.log("closeDragElement(): pointerup");
      document.body.removeEventListener("pointermove", elementDrag);
      document.body.removeEventListener("pointerup", closeDragElement);

      document.body.removeChild(
        document.querySelector("#shadeDivForDragElement")
      );
    }
  },

  renderMarkdown(mdString, targetElement) {
    let headerPattern = /^(#{1,6})\s*(.*)$/gm;
    const boldPattern = /\*\*(.*?)\*\*/g;
    const linkPattern = /\[(.*?)\]\((.*?)\)/g;
    const newlinePattern = /(?:\n)/g;
    const inlineCodePattern = /`(.*?)`/g;
    const codeBlockPattern = /```(\w+)?\n(.*?)```/gs;

    let html = mdString;

    let parts = html.split("```");
    for (let i = 0; i < parts.length; i++) {
      if (i % 2 === 0) {
        parts[i] = parts[i].replace(headerPattern, (match, hash, content) => {
          const level = hash.length;
          return `<h${level}>${content}</h${level}>`;
        });
        parts[i] = parts[i].replace(newlinePattern, (match, hash, content) => {
          const level = hash.length;
          return `<br>`;
        });
      }
    }
    html = parts.join("```");

    html = html.replace(boldPattern, "<strong>$1</strong>");
    html = html.replace(linkPattern, '<a href="$2">$1</a>');

    html = html.replace(codeBlockPattern, (match, language, code) => {
      return `
          <div class="code-block">
              <button class="copy-code-btn">Copy</button>
              <button class="insert-code-btn">Insert</button>
              <pre id='devilentCodePre'><xmp>${code}</xmp></pre>
          </div>
      `;
    });

    html = html.replace(inlineCodePattern, "<code>$1</code>");

    targetElement.innerHTML = html;

    const buttons = targetElement.querySelectorAll(".code-block button");
    buttons.forEach((btn) => {
      btn.addEventListener("pointerdown", (e) => {
        e.preventDefault();

        const code = btn.parentElement.querySelector("pre").innerText;
        if (btn.classList.contains("copy-code-btn")) {
          utils.copyToClipboard(code);
        } else if (btn.classList.contains("insert-code-btn")) {
          console.log("insert button down");
          utils.writeText(document.activeElement, code, "", "");
        }
      });
    });

    const copyButton = document.createElement("button");
    copyButton.innerText = "Copy";
    copyButton.addEventListener("pointerdown", (e) => {
      e.preventDefault();
      e.stopPropagation();

      utils.copyToClipboard(mdString);
    });

    const insertButton = document.createElement("button");
    insertButton.innerText = "Insert";
    insertButton.addEventListener("pointerdown", (e) => {
      e.preventDefault();
      e.stopPropagation();

      utils.writeText(document.activeElement, mdString, "", "");
    });
    copyButton.classList.add("copy-btn");
    insertButton.classList.add("insert-btn");

    let editButton = document.createElement("button");
    editButton.innerText = "Edit";
    editButton.addEventListener("pointerdown", (e) => {
      e.preventDefault();
      if (targetElement.isEditableElement) {
        targetElement.setAttribute('contenteditable', 'false');
      }
      else {
        targetElement.setAttribute('contenteditable', 'true');
      }
    });
    editButton.classList.add("copy-btn");

    const closeButton = document.createElement("button");
    closeButton.innerText = "Close";
    closeButton.addEventListener("pointerdown", (e) => {
      e.preventDefault();
      targetElement.remove();
    });
    closeButton.classList.add("copy-btn");

    let buttonContainer = document.createElement("div");
    buttonContainer.classList.add("button-container");

    buttonContainer.appendChild(copyButton);
    buttonContainer.appendChild(insertButton);
    buttonContainer.appendChild(closeButton);
    buttonContainer.appendChild(editButton);

    const parentElement = targetElement;

    buttonContainer.style.width = "100%";
    buttonContainer.style.backgroundColor = parentElement.style.backgroundColor;
    buttonContainer.style.color =
      "lighten(" + buttonContainer.style.backgroundColor + ", 20%)";

    targetElement.prepend(buttonContainer);
    utils.dragElement(buttonContainer, targetElement);

    targetElement.classList.add("markdown-container");
    let markdownContainers =
      document.getElementsByClassName("markdown-container");

    for (let i = 0; i < markdownContainers.length; i++) {
      markdownContainers[i].style.fontFamily = "Arial, sans-serif";
      markdownContainers[i].style.lineHeight = "1.6";
      markdownContainers[i].style.maxWidth = "800px";
      markdownContainers[i].style.margin = "0 auto";
      markdownContainers[i].style.padding = "0px";
      markdownContainers[i].style.backgroundColor = "azure";
      markdownContainers[i].style.overflow = "auto";
      markdownContainers[i].style.boxShadow = "0px 0px 50px rgba(0, 0, 0, 0.4)";
    }

    let codeBlocks = document.getElementsByClassName("code-block");
    for (let i = 0; i < codeBlocks.length; i++) {
      codeBlocks[i].style.position = "relative";
    }

    let insertCodeBtns = document.getElementsByClassName("insert-code-btn");
    let codecopyBtns = document.getElementsByClassName("copy-code-btn");

    for (let i = 0; i < codecopyBtns.length; i++) {
      codecopyBtns[i].style.top = "0";
      codecopyBtns[i].style.position = "absolute";
      codecopyBtns[i].style.right = "0";
      codecopyBtns[i].style.margin = "5px";
      codecopyBtns[i].style.padding = "2px 5px";
      codecopyBtns[i].style.fontSize = "12px";
      codecopyBtns[i].style.border = "none";
      codecopyBtns[i].style.borderRadius = "3px";
      codecopyBtns[i].style.backgroundColor = "#007bff";
      codecopyBtns[i].style.color = "white";
      codecopyBtns[i].style.cursor = "pointer";
    }

    for (let i = 0; i < insertCodeBtns.length; i++) {
      insertCodeBtns[i].style.position = "absolute";
      insertCodeBtns[i].style.top = "0";
      insertCodeBtns[i].style.right = "50px";
      insertCodeBtns[i].style.margin = "5px";
      insertCodeBtns[i].style.padding = "2px 5px";
      insertCodeBtns[i].style.fontSize = "12px";
      insertCodeBtns[i].style.border = "none";
      insertCodeBtns[i].style.borderRadius = "3px";
      insertCodeBtns[i].style.backgroundColor = "#007bff";
      insertCodeBtns[i].style.color = "white";
      insertCodeBtns[i].style.cursor = "pointer";
    }

    let copyBtns = document.getElementsByClassName("copy-btn");
    let insertBtns = document.getElementsByClassName("insert-btn");

    for (let i = 0; i < copyBtns.length; i++) {
      copyBtns[i].style.margin = "5px";
      copyBtns[i].style.padding = "2px 5px";
      copyBtns[i].style.fontSize = "12px";
      copyBtns[i].style.border = "none";
      copyBtns[i].style.borderRadius = "3px";
      copyBtns[i].style.backgroundColor = "#007bff";
      copyBtns[i].style.color = "white";
      copyBtns[i].style.cursor = "pointer";
    }

    for (let i = 0; i < insertBtns.length; i++) {
      insertBtns[i].style.margin = "5px";
      insertBtns[i].style.padding = "2px 5px";
      insertBtns[i].style.fontSize = "12px";
      insertBtns[i].style.border = "none";
      insertBtns[i].style.borderRadius = "3px";
      insertBtns[i].style.backgroundColor = "#007bff";
      insertBtns[i].style.color = "white";
      insertBtns[i].style.cursor = "pointer";
    }

    let pres = targetElement.getElementsByTagName("pre");
    for (let i = 0; i < pres.length; i++) {
      pres[i].style.backgroundColor = "#f7f7f7";
      pres[i].style.borderRadius = "5px";
      pres[i].style.padding = "10px";
      pres[i].style.whiteSpace = "pre-wrap";
      pres[i].style.wordBreak = "break-all";
    }

    let codes = targetElement.getElementsByTagName("code");
    for (let i = 0; i < codes.length; i++) {
      codes[i].style.backgroundColor = "#f1f1f1";
      codes[i].style.borderRadius = "3px";
      codes[i].style.padding = "2px 5px";
      codes[i].style.fontFamily = "'Courier New', Courier, monospace";
    }
  },
  displayMarkdown(mdString) {
    let containerID = "ai_input_md_dispalyer";

    let container = document.getElementById(containerID);
    if (container === null) {
      container =
        document.getElementById(containerID) || document.createElement("div");
      container.id = containerID;
      document.body.appendChild(container);

      container.style.zIndex = "100000";
      container.style.position = "fixed";
      container.style.top = "85vh";
      container.style.left = "0";
      container.style.height = "40vh";
      container.style.width = "80vw";
      container.style.backgroundColor = "rgba{20,20,50,1}";
    }

    utils.renderMarkdown(mdString, container);
    let div = document.createElement('div');
    div.style.height = '3000px';
    container.appendChild(div)
  },
  moveElementNearMouse: (mElem, targetElement, alwayInWindow = true, event) => {
    let x = event.clientX + 200;
    let y = event.clientY - 20;
    console.log('moveElementNearMouse: ', x, y);
    if (alwayInWindow) {
      x = Math.abs(x);
      y = Math.abs(y);
      x = Math.min(x, window.innerWidth - mElem.clientWidth);
      y = Math.min(y, window.innerHeight - 10 - mElem.clientHeight);
    }
    mElem.style.left = x + "px";
    mElem.style.top = y + "px";
  },
  addEventListenerForActualClick(element, handler) {
    let initialX, initialY;
    let startTime;

    element.addEventListener("pointerdown", (event) => {
      initialX = event.clientX;
      initialY = event.clientY;
      startTime = Date.now();
    });
    element.addEventListener("pointerup", (event) => {
      const deltaX = Math.abs(event.clientX - initialX);
      const deltaY = Math.abs(event.clientY - initialY);

      if (deltaX <= 10 && deltaY <= 10 && Date.now() - startTime < 1000) {
        console.log(
          "Minimal mouse movement (< 10px in either direction) and short duration click detected."
        );
        handler(event);
      }
    });
  },
  sendKeyEvent(element, key, modifiers) {
    const eventDown = new KeyboardEvent("keydown", {
      key: key,
      code: key.toUpperCase(),
      bubbles: true,
      cancelable: true,
      ...modifiers,
    });
    const eventUp = new KeyboardEvent("keyup", {
      key: key,
      code: key.toUpperCase(),
      bubbles: true,
      cancelable: true,
      ...modifiers,
    });

    element.dispatchEvent(eventDown);
    element.dispatchEvent(eventUp);
  },
  blobToBase64: function blobToBase64(blob) {
    if (!(blob instanceof Blob)) {
      throw new TypeError("Parameter must be a Blob object.");
    }

    if (!blob.size) {
      throw new Error("Empty Blob provided.");
    }

    return new Promise((resolve, reject) => {
      const reader = new FileReader();
      reader.onload = () => resolve(reader.result.split(",")[1]);
      reader.onerror = reject;
      reader.readAsDataURL(blob);
    });
  },

  playAudioBlob: function playAudioBlob(blob, autoPlay = true) {
    const audio = new Audio();
    audio.src = URL.createObjectURL(blob);
    audio.controls = true;
    document.body.prepend(audio);

    if (autoPlay === true) {
      audio
        .play()
        .then(() => {
          console.log("Audio played successfully!");
        })
        .catch((error) => {
          console.error("Error playing audio:", error);
        });
    }
  },


  async AIComplete(userText, option = {
    url: '/openai/v1/chat/completions',
    model: 'llama3-8b-8192',
    max_tokens: 8000,
  }) {
    console.log("AIcomplete(): ", userText);
    if (utils.checkValidString(userText) === false) {
      return;
    }
    let response = await fetch(
      option.url,
      {
        headers: {
          accept: "*/*",
          "content-type": "application/json",
        },
        body: JSON.stringify({
          messages: [{
            "role": "system",
            "content": "be concise and clear."
          },
          { role: "user", content: userText }],
          model: option.model,
          tools: [],
          temperature: 0.7,
          top_p: 0.8,
          max_tokens: option.max_tokens || 1000000,
        }),
        method: "POST",
      }
    );
    response = await response.json();
    let responseMessage = response?.choices[0]?.message?.content;

    console.log("[leptonComplete(text)]", responseMessage);
    let mdContainer = document.createElement("div");
    document.body.appendChild(mdContainer);
    utils.displayMarkdown(userText + "\n\n" + option.model + '\n' + responseMessage);
    return response;

  }
};

// ... (Other external API functions: sendAudioToApi, whisperjaxws, 
//     sendAudioToCFWhisperApi, sendAudioToHFWhisperApi) ... 

export { utils };