feat: Support image resize in message signature (#8042)

app/javascript/dashboard/helper/editorHelper.js

@@ -215,3 +215,69 @@ export function insertAtCursor(editorView, node, from, to) {
 
   return state;
 }
+
+/**
+ * Determines the appropriate node and position to insert an image in the editor.
+ *
+ * Based on the current editor state and the provided image URL, this function finds out the correct node (either
+ * a standalone image node or an image wrapped in a paragraph) and its respective position in the editor.
+ *
+ * 1. If the current node is a paragraph and doesn't contain an image or text, the image is inserted directly into it.
+ * 2. If the current node isn't a paragraph or it's a paragraph containing text, the image will be wrapped
+ *    in a new paragraph and then inserted.
+ * 3. If the current node is a paragraph containing an image, the new image will be inserted directly into it.
+ *
+ * @param {Object} editorState - The current state of the editor. It provides necessary details like selection, schema, etc.
+ * @param {string} fileUrl - The URL of the image to be inserted into the editor.
+ * @returns {Object|null} An object containing details about the node to be inserted and its position. It returns null if no image node can be created.
+ * @property {Node} node - The ProseMirror node to be inserted (either an image node or a paragraph containing the image).
+ * @property {number} pos - The position where the new node should be inserted in the editor.
+ */
+
+export const findNodeToInsertImage = (editorState, fileUrl) => {
+  const { selection, schema } = editorState;
+  const { nodes } = schema;
+  const currentNode = selection.$from.node();
+  const {
+    type: { name: typeName },
+    content: { size, content },
+  } = currentNode;
+
+  const imageNode = nodes.image.create({ src: fileUrl });
+
+  if (!imageNode) return null;
+
+  const isInParagraph = typeName === 'paragraph';
+  const needsNewLine =
+    !content.some(n => n.type.name === 'image') && size !== 0 ? 1 : 0;
+
+  return {
+    node: isInParagraph ? imageNode : nodes.paragraph.create({}, imageNode),
+    pos: selection.from + needsNewLine,
+  };
+};
+
+/**
+ * Set URL with query and size.
+ *
+ * @param {Object} selectedImageNode - The current selected node.
+ * @param {Object} size - The size to set.
+ * @param {Object} editorView - The editor view.
+ */
+export function setURLWithQueryAndSize(selectedImageNode, size, editorView) {
+  if (selectedImageNode) {
+    // Create and apply the transaction
+    const tr = editorView.state.tr.setNodeMarkup(
+      editorView.state.selection.from,
+      null,
+      {
+        src: selectedImageNode.src,
+        height: size.height,
+      }
+    );
+
+    if (tr.docChanged) {
+      editorView.dispatch(tr);
+    }
+  }
+}