Add full project files

helpers/chatHelpers.js

@@ -0,0 +1,72 @@
+const moment = require('moment-jalaali')
+const MessageModel = require('../models/MessageModel')
+const UserModel = require('../models/UserModel')
+
+function formatTimeOnly(date) {
+  return moment(date).locale('fa').format('HH:mm:ss')
+}
+
+async function enrichMessage(message) {
+  const doc = message._doc ? { ...message._doc } : { ...message }
+  let replyTo = null
+
+  if (doc.replyToId) {
+    const parent = await MessageModel.findById(doc.replyToId).lean()
+    if (parent) {
+      const parentUser =
+        String(parent.senderId) === String(doc.senderId)
+          ? await UserModel.findById(doc.senderId).select('first_name last_name user_name').lean()
+          : await UserModel.findById(parent.senderId).select('first_name last_name user_name').lean()
+      replyTo = {
+        _id: parent._id,
+        content: (parent.content || 'پیام').slice(0, 200),
+        senderName: parentUser
+          ? `${parentUser.first_name || ''} ${parentUser.last_name || ''}`.trim() || parentUser.user_name
+          : 'کاربر'
+      }
+    }
+  }
+
+  return {
+    ...doc,
+    createdAt: formatTimeOnly(doc.createdAt),
+    replyTo,
+    forwardedFrom: doc.forwardedFrom || undefined
+  }
+}
+
+function emitChatEvents(io, message, senderId, receiverId) {
+  const payload = message
+  const roomA = `chat:${senderId}:${receiverId}`
+  const roomB = `chat:${receiverId}:${senderId}`
+  io.to(roomA).to(roomB).emit('newMessage', payload)
+  io.to(`user:${senderId}`).to(`user:${receiverId}`).emit('chatListUpdate', {
+    senderId,
+    receiverId,
+    message: payload
+  })
+}
+
+function parseForwardedContent(content) {
+  if (!content) return { body: '', forwardedFrom: null }
+  try {
+    const line = content.split('\n')[0]
+    const j = JSON.parse(line)
+    if (j.forwardedFrom) {
+      return {
+        forwardedFrom: j.forwardedFrom,
+        body: content.replace(/^\{.*\}\n?/, '').trim()
+      }
+    }
+  } catch (_) {
+    /* not json */
+  }
+  return { body: content, forwardedFrom: null }
+}
+
+module.exports = {
+  formatTimeOnly,
+  enrichMessage,
+  emitChatEvents,
+  parseForwardedContent
+}