import {POST} from '../../modules/fetch.js';import {getPastedContent, replaceTextareaSelection} from '../../utils/dom.js';import {isUrl} from '../../utils/url.js'; async function uploadFile(file, uploadUrl) {  const formData = new FormData();  formData.append('file', file, file.name);   const res = await POST(uploadUrl, {data: formData});  return await res.json();} function triggerEditorContentChanged(target) {  target.dispatchEvent(new CustomEvent('ce-editor-content-changed', {bubbles: true}));} class TextareaEditor {  constructor(editor) {    this.editor = editor;  }   insertPlaceholder(value) {    const editor = this.editor;    const startPos = editor.selectionStart;    const endPos = editor.selectionEnd;    editor.value = editor.value.substring(0, startPos) + value + editor.value.substring(endPos);    editor.selectionStart = startPos;    editor.selectionEnd = startPos + value.length;    editor.focus();    triggerEditorContentChanged(editor);  }   replacePlaceholder(oldVal, newVal) {    const editor = this.editor;    const startPos = editor.selectionStart;    const endPos = editor.selectionEnd;    if (editor.value.substring(startPos, endPos) === oldVal) {      editor.value = editor.value.substring(0, startPos) + newVal + editor.value.substring(endPos);      editor.selectionEnd = startPos + newVal.length;    } else {      editor.value = editor.value.replace(oldVal, newVal);      editor.selectionEnd -= oldVal.length;      editor.selectionEnd += newVal.length;    }    editor.selectionStart = editor.selectionEnd;    editor.focus();    triggerEditorContentChanged(editor);  }} class CodeMirrorEditor {  constructor(editor) {    this.editor = editor;  }   insertPlaceholder(value) {    const editor = this.editor;    const startPoint = editor.getCursor('start');    const endPoint = editor.getCursor('end');    editor.replaceSelection(value);    endPoint.ch = startPoint.ch + value.length;    editor.setSelection(startPoint, endPoint);    editor.focus();    triggerEditorContentChanged(editor.getTextArea());  }   replacePlaceholder(oldVal, newVal) {    const editor = this.editor;    const endPoint = editor.getCursor('end');    if (editor.getSelection() === oldVal) {      editor.replaceSelection(newVal);    } else {      editor.setValue(editor.getValue().replace(oldVal, newVal));    }    endPoint.ch -= oldVal.length;    endPoint.ch += newVal.length;    editor.setSelection(endPoint, endPoint);    editor.focus();    triggerEditorContentChanged(editor.getTextArea());  }} async function handleClipboardImages(editor, dropzone, images, e) {  const uploadUrl = dropzone.getAttribute('data-upload-url');  const filesContainer = dropzone.querySelector('.files');   if (!dropzone || !uploadUrl || !filesContainer || !images.length) return;   e.preventDefault();  e.stopPropagation();   for (const img of images) {    const name = img.name.slice(0, img.name.lastIndexOf('.'));     const placeholder = `![${name}](uploading ...)`;    editor.insertPlaceholder(placeholder);     const {uuid} = await uploadFile(img, uploadUrl);     const url = `/attachments/${uuid}`;    const text = `![${name}](${url})`;    editor.replacePlaceholder(placeholder, text);     const input = document.createElement('input');    input.setAttribute('name', 'files');    input.setAttribute('type', 'hidden');    input.setAttribute('id', uuid);    input.value = uuid;    filesContainer.append(input);  }} function handleClipboardText(textarea, text, e) {  // when pasting links over selected text, turn it into [text](link), except when shift key is held  const {value, selectionStart, selectionEnd, _shiftDown} = textarea;  if (_shiftDown) return;  const selectedText = value.substring(selectionStart, selectionEnd);  const trimmedText = text.trim();  if (selectedText && isUrl(trimmedText) && !isUrl(selectedText)) {    e.stopPropagation();    e.preventDefault();    replaceTextareaSelection(textarea, `[${selectedText}](${trimmedText})`);  }} export function initEasyMDEPaste(easyMDE, dropzone) {  easyMDE.codemirror.on('paste', (_, e) => {    const {images} = getPastedContent(e);    if (images.length) {      handleClipboardImages(new CodeMirrorEditor(easyMDE.codemirror), dropzone, images, e);    }  });} export function initTextareaPaste(textarea, dropzone) {  textarea.addEventListener('paste', (e) => {    const {images, text} = getPastedContent(e);    if (images.length) {      handleClipboardImages(new TextareaEditor(textarea), dropzone, images, e);    } else if (text) {      handleClipboardText(textarea, text, e);    }  });}