diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..be735eb
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,17 @@
+# کپی کنید به .env (بک‌اند)
+NODE_ENV=development
+APP_PORT=3002
+APP_URL=http://localhost:3002/api/v1
+APP_SITE=http://localhost:3000
+APP_SECRET=your-secret
+DATABASE_URL=mongodb://root:PASSWORD@localhost:27017/modstagram?authSource=admin
+SMS_SECRET=
+SMS_VERIFY_KEY=
+MERCHENT_CODE=
+ZARINPAL_MERCHANT_ID=
+
+# روی سرور (production):
+# NODE_ENV=production
+# APP_PORT=3002
+# APP_URL=https://app.modstagram.ir/api/v1
+# APP_SITE=https://modstagram.com
diff --git a/controllers/application/academy/academyControllers.js b/controllers/application/academy/academyControllers.js
index 2d465fa..658adb7 100644
--- a/controllers/application/academy/academyControllers.js
+++ b/controllers/application/academy/academyControllers.js
@@ -15,6 +15,13 @@ const CourseComment = require("../../../models/CourseComentModel");
 const IsPaymentCourse = require("../../../models/IsPaymentCourseModel");
 const Tax = require("../../../models/TaxModel");
 const AcademyCategoryModel = require('../../../models/AcademyCategoryModel');
+const {
+  createLikeNotification,
+  resolveCourseOwnerId
+} = require('../../../utils/likeNotification');
+const {
+  createCommentNotification
+} = require('../../../utils/commentNotification');
 
 const onServerRestart = async () => {
   const CoursePayment = await CoursePaymentModel.findOne({
@@ -1178,6 +1185,14 @@ const likeCourseContent = async (req, res, next) => {
       createdAt: new Date(),
     });
 
+    const courseOwnerId = await resolveCourseOwnerId(course);
+    await createLikeNotification({
+      ownerId: courseOwnerId,
+      likerId: userId,
+      entityId: course._id,
+      type: 'academy_like'
+    });
+
     res.status(200).json({
       success: true,
       message: "دوره با موفقیت لایک شد",
@@ -1394,6 +1409,14 @@ const createComment = async (req, res) => {
       newComment._id
     ).populate("user_id", "name username");
 
+    const courseOwnerId = await resolveCourseOwnerId(course);
+    await createCommentNotification({
+      ownerId: courseOwnerId,
+      commenterId: userId,
+      entityId: course._id,
+      type: 'academy_comment'
+    });
+
     res.status(201).json({
       success: true,
       message: "کامنت با موفقیت ثبت شد",
diff --git a/controllers/application/advertising/advertisingController.js b/controllers/application/advertising/advertisingController.js
index f8278ee..772da30 100644
--- a/controllers/application/advertising/advertisingController.js
+++ b/controllers/application/advertising/advertisingController.js
@@ -14,6 +14,11 @@ const AdvertisingLikeModel = require('../../../models/AdvertisingLikeModel')
 const AdvertisingComment = require('../../../models/AdvertisingCommentModel')
 const AdvertisingRatingModel = require('../../../models/AdvertisingRatingModel')
 const AdvertisingProfileModel = require('../../../models/AdvertisingProfile')
+const { createLikeNotification } = require('../../../utils/likeNotification')
+const {
+  createCommentNotification,
+  createRatingNotification
+} = require('../../../utils/commentNotification')
 
 const createAdvertisingValidationRules = () => {
   return [
@@ -698,6 +703,14 @@ const toggleLike = async (req, res, next) => {
       // افزایش تعداد لایک‌ها در تبلیغات
       advertising.likesCount += 1
       await advertising.save()
+
+      await createLikeNotification({
+        ownerId: advertising.creator_id,
+        likerId: userId,
+        entityId: advertising._id,
+        type: 'billboard_like'
+      })
+
       return res.status(201).json({ message: 'ویترین با موفقیت لایک شد' })
     }
   } catch (error) {
@@ -727,8 +740,16 @@ const addComment = async (req, res, next) => {
     })
 
     await newComment.save()
-    // افزایش تعداد کامنت‌های تبلیغ
-    // await AdvertisingModel.findByIdAndUpdate(advertisingId, { $inc: { commentsCount: 1 } })
+
+    const advertising = await AdvertisingModel.findById(advertisingId)
+    if (advertising) {
+      await createCommentNotification({
+        ownerId: advertising.creator_id,
+        commenterId: userId,
+        entityId: advertising._id,
+        type: 'billboard_comment'
+      })
+    }
 
     res.status(201).json({ message: 'کامنت با موفقیت اضافه شد', comment: newComment })
   } catch (error) {
@@ -783,6 +804,13 @@ const rateAdvertising = async (req, res, next) => {
         rating
       })
       await newRating.save()
+
+      await createRatingNotification({
+        ownerId: advertising.creator_id,
+        raterId: userId,
+        entityId: advertising._id,
+        type: 'billboard_rating'
+      })
     }
 
     // به‌روزرسانی امتیازات کلی کاربر
diff --git a/controllers/application/login/loginWithUserName.js b/controllers/application/login/loginWithUserName.js
index ded6b6f..e0ffa74 100644
--- a/controllers/application/login/loginWithUserName.js
+++ b/controllers/application/login/loginWithUserName.js
@@ -2,8 +2,14 @@
 const UserModel = require('../../../models/UserModel')
 const bcrypt = require('bcryptjs')
 const TokenService = require('../../../services/TokenService')
+const {
+  expireBlockSuspensionIfNeeded,
+  getBlockedAccountResponse
+} = require('../../../utils/blockSuspension')
 // const jwt = require('jsonwebtoken')
 
+const INVALID_CREDENTIALS = 'نام کاربری یا کلمه عبور را اشتباه وارد کردید'
+
 const loginWithUserName = async (req, res, next) => {
   try {
     // اعتبارسنجی ورودی ها
@@ -11,30 +17,36 @@ const loginWithUserName = async (req, res, next) => {
     if (!user_name || !password) {
       return res.status(422).json({
         error: true,
-        message: 'اطلاعات ارسالی اشتباه است'
+        message: INVALID_CREDENTIALS
       })
     }
     // یافتن کاربر با نام کاربری
     const userLow = user_name.toLowerCase()
-    const user = await UserModel.findOne({ user_name: userLow })
+    let user = await UserModel.findOne({ user_name: userLow })
 
     if (!user) {
-      return res.status(404).json({
+      return res.status(422).json({
         error: true,
-        message: 'کاربری با این نام کاربری یافت نشد'
+        message: INVALID_CREDENTIALS
       })
     }
+
+    user = await expireBlockSuspensionIfNeeded(user)
+    const blockResponse = getBlockedAccountResponse(user)
+    if (blockResponse) {
+      return res.status(403).json(blockResponse)
+    }
     if (!user.password) {
       return res.status(422).json({
         error: true,
-        message: 'رمز عبور برای این کاربر تنظیم نشده است'
+        message: INVALID_CREDENTIALS
       })
     }
     const isPasswordValid = await bcrypt.compare(password, user.password)
     if (!isPasswordValid) {
       return res.status(422).json({
         error: true,
-        message: 'نام کاربری یا رمز عبور اشتباه است'
+        message: INVALID_CREDENTIALS
       })
     }
     // اگر هم نام کاربری و هم رمز عبور درست بود، ارسال پیام موفقیت آمیز
diff --git a/controllers/application/login/verifyController.js b/controllers/application/login/verifyController.js
index 1ef37aa..2c57e90 100644
--- a/controllers/application/login/verifyController.js
+++ b/controllers/application/login/verifyController.js
@@ -1,6 +1,10 @@
 const UserModel = require('../../../models/UserModel')
 const TokenService = require('../../../services/TokenService')
 const { isOtpExpired } = require('../../../utils/otpExpiry')
+const {
+  expireBlockSuspensionIfNeeded,
+  getBlockedAccountResponse
+} = require('../../../utils/blockSuspension')
 // const jwt = require('jsonwebtoken')
 
 const verifyUser = async (req, res, next) => {
@@ -13,13 +17,20 @@ const verifyUser = async (req, res, next) => {
       })
     }
 
-    const user = await UserModel.findOne({ mobile })
+    let user = await UserModel.findOne({ mobile })
     if (!user) {
       return res.status(404).json({
         error: true,
         message: 'کاربری با این شماره موبایل یافت نشد'
       })
     }
+
+    user = await expireBlockSuspensionIfNeeded(user)
+    const blockResponse = getBlockedAccountResponse(user)
+    if (blockResponse) {
+      return res.status(403).json(blockResponse)
+    }
+
     const token = TokenService.sign({ id: user._id })
 
     if (!user.otp || isOtpExpired(user)) {
@@ -86,7 +97,7 @@ const verifyUser = async (req, res, next) => {
 
     return res.status(422).json({
       error: true,
-      message: 'کد تایید اشتباه است'
+      message: 'کد را اشتباه وارد کردید'
     })
   } catch (error) {
     next(error)
diff --git a/controllers/application/offer/offerController.js b/controllers/application/offer/offerController.js
index 7c22be0..9e532f2 100644
--- a/controllers/application/offer/offerController.js
+++ b/controllers/application/offer/offerController.js
@@ -8,6 +8,10 @@ const PaymentModel = require('../../../models/PaymentModel')
 const NotificationModel = require('../../../models/NotificationModel')
 const { default: axios } = require('axios')
 const CommentModel = require('../../../models/CommentModel')
+const {
+  resolveRatingForComment,
+  recalculateUserRating
+} = require('../../../utils/commentRating')
 
 const getOfferPriceFromDatabase = async (itemName) => {
   const item = await OfferTypeModel.findOne({ name: itemName })
@@ -374,55 +378,35 @@ const createOfferComment = async (req, res, next) => {
     const userId = decodedToken.id
 
     const { offerId, comment, rate, user_id } = req.body
-    if (!offerId || !comment || !rate || !user_id) {
+    if (!offerId || !comment || !user_id) {
       return res.status(400).send({ message: 'All fields are required' })
     }
-    // بررسی اینکه آیا کاربر قبلاً برای این پیشنهاد نظر داده است
-    const existingComment = await CommentModel.findOne({
-      offer: offerId,
-      creator: userId
+
+    const { ratingValue, isNewRating, requiresRating } = await resolveRatingForComment({
+      creatorId: userId,
+      targetUserId: user_id,
+      rate
     })
-    if (existingComment) {
-      return res.status(400).send({ message: 'شما قبلاً نظر خود را برای این درخواست ثبت کرده‌اید' })
+
+    if (requiresRating) {
+      return res.status(400).send({ message: 'Rating must be between 1 and 5' })
     }
+
     const newComment = new CommentModel({
       user: user_id,
       offer: offerId,
       creator: userId,
-      rating: rate,
+      rating: ratingValue,
       comment,
       comment_for: 'user',
       status: 'pending'
     })
     await newComment.save()
 
-    const user = await UserModel.findById(user_id)
-
-    // پیدا کردن کامنت‌ها و محاسبه‌ی امتیاز کل
-    const comments = await CommentModel.find({ user: user_id, comment_for: 'user' })
-    const totalRating = Number(comments.reduce((acc, comment) => acc + comment.rating, 0))
-
-    let userLevel
-    if (user.expertise === 'مدل') {
-      if (totalRating <= 50) userLevel = 'تازه وارد'
-      else if (totalRating <= 100) userLevel = 'استاندارد'
-      else if (totalRating <= 300) userLevel = 'حرفه‌ای'
-      else userLevel = 'استاد'
-    } else if (['زیبایی', 'عکاس'].includes(user.expertise)) {
-      if (totalRating <= 50) userLevel = 'تازه وارد'
-      else if (totalRating <= 100) userLevel = 'استاندارد'
-      else if (totalRating <= 300) userLevel = 'حرفه‌ای'
-      else userLevel = 'استاد'
+    if (isNewRating) {
+      await recalculateUserRating(user_id)
     }
 
-    user.user_score = totalRating
-    user.user_level = userLevel
-
-    const totalComments = await CommentModel.countDocuments({ user: user_id, comment_for: 'user' })
-    const averageRating = totalRating / totalComments
-    user.rate = averageRating.toFixed(1)
-    await user.save()
-
     res.status(200).json({ message: 'نظر شما با موفقیت ثبت شد' })
   } catch (error) {
     next(error)
diff --git a/controllers/application/posts/likeController.js b/controllers/application/posts/likeController.js
index 9b511b8..9c2b078 100644
--- a/controllers/application/posts/likeController.js
+++ b/controllers/application/posts/likeController.js
@@ -3,6 +3,7 @@ const PostModel = require('../../../models/PostModel');
 const jwt = require('jsonwebtoken');
 const UserModel = require('../../../models/UserModel');
 const LikeModel = require('../../../models/LikeModel');
+const { createLikeNotification } = require('../../../utils/likeNotification');
 
 const toggleLike = async (req, res, next) => {
   try {
@@ -48,6 +49,13 @@ const toggleLike = async (req, res, next) => {
       await post.save();
       await LikeModel.create({ postId, userId });
 
+      await createLikeNotification({
+        ownerId: post.user_id,
+        likerId: userId,
+        entityId: post._id,
+        type: 'post_like'
+      });
+
       return res.status(200).json({
         message: 'پست با موفقیت لایک شد',
         is_liked: true,
diff --git a/controllers/application/posts/postController.js b/controllers/application/posts/postController.js
index 89db710..8e3d9bd 100644
--- a/controllers/application/posts/postController.js
+++ b/controllers/application/posts/postController.js
@@ -5,6 +5,7 @@ const { check, validationResult } = require('express-validator');
 const jwt = require('jsonwebtoken');
 const path = require('path');
 const { default: mongoose } = require('mongoose');
+const { viewerIsBlockedBy } = require('../../../utils/blockVisibility');
 
 const createPostValidationRules = () => {
   console.log(4);
@@ -139,6 +140,15 @@ const getUserPostsWeb = async (req, res, next) => {
       return res.status(404).json({ message: 'کاربر مورد نظر یافت نشد' })
     }
 
+    if (userReqId && viewerIsBlockedBy(user, userReqId)) {
+      return res.status(200).json({
+        posts: [],
+        postsCount: 0,
+        totalPages: 0,
+        totalItems: 0,
+      })
+    }
+
     const data = {}
     const options = {
       page: req.query.page || 1,
diff --git a/controllers/application/profile/profileController.js b/controllers/application/profile/profileController.js
index bda10aa..2fc0f74 100644
--- a/controllers/application/profile/profileController.js
+++ b/controllers/application/profile/profileController.js
@@ -35,6 +35,7 @@ const getUserById = async (req, res, next) => {
       user_name: user.user_name,
       show_location: user.show_location,
       is_verified: user.is_verified,
+      is_Register: user.is_Register,
       user_score: user.user_score,
       rate: user.rate,
       bio: user.bio,
diff --git a/controllers/application/projects/updateProjectController.js b/controllers/application/projects/updateProjectController.js
index 2343404..41aaeed 100644
--- a/controllers/application/projects/updateProjectController.js
+++ b/controllers/application/projects/updateProjectController.js
@@ -6,6 +6,46 @@ const { check, validationResult } = require('express-validator')
 const { ProvinceModel, CityModel } = require('../../../models/StateCity')
 const NotificationModel = require('../../../models/NotificationModel')
 const CommentModel = require('../../../models/CommentModel')
+const {
+  resolveRatingForComment,
+  recalculateUserRating
+} = require('../../../utils/commentRating')
+
+const saveProjectComment = async ({
+  targetUserId,
+  projectId,
+  creatorId,
+  comment,
+  rate,
+  commentFor
+}) => {
+  const { ratingValue, isNewRating, requiresRating } = await resolveRatingForComment({
+    creatorId,
+    targetUserId,
+    rate
+  })
+
+  if (requiresRating) {
+    return { error: { status: 400, message: 'Rating must be between 1 and 5' } }
+  }
+
+  const newComment = new CommentModel({
+    user: targetUserId,
+    project: projectId,
+    creator: creatorId,
+    rating: ratingValue,
+    comment,
+    comment_for: commentFor,
+    status: 'pending'
+  })
+  await newComment.save()
+
+  if (isNewRating && commentFor === 'user') {
+    await recalculateUserRating(targetUserId)
+  }
+
+  return { ratingValue, isNewRating }
+}
 
 const doneProject = async (req, res, next) => {
   try {
@@ -16,7 +56,7 @@ const doneProject = async (req, res, next) => {
     const userId = decodedToken.id
 
     const { project_id, comment, rate, user_id } = req.body
-    if (!project_id || !comment || !rate || !user_id) {
+    if (!project_id || !comment || !user_id) {
       return res.status(400).send({ message: 'All fields are required' })
     }
 
@@ -42,43 +82,20 @@ const doneProject = async (req, res, next) => {
     project.status = 'done'
     await project.save()
 
-    const newComment = new CommentModel({
-      user: user_id,
-      project: project_id,
-      creator: userId,
-      rating: rate,
+    const commentResult = await saveProjectComment({
+      targetUserId: user_id,
+      projectId: project_id,
+      creatorId: userId,
       comment,
-      comment_for: 'user',
-      status: 'pending'
+      rate,
+      commentFor: 'user'
     })
-    await newComment.save()
 
-    const user = await UserModel.findById(user_id)
-
-    // پیدا کردن کامنت‌ها و محاسبه‌ی امتیاز کل
-    const comments = await CommentModel.find({ user: user_id, comment_for: 'user' })
-    const totalRating = Number(comments.reduce((acc, comment) => acc + comment.rating, 0))
-
-    let userLevel
-    if (user.expertise === 'مدل') {
-      if (totalRating <= 50) userLevel = 'تازه وارد'
-      else if (totalRating <= 100) userLevel = 'استاندارد'
-      else if (totalRating <= 300) userLevel = 'حرفه‌ای'
-      else userLevel = 'استاد'
-    } else if (['زیبایی', 'عکاس'].includes(user.expertise)) {
-      if (totalRating <= 50) userLevel = 'تازه وارد'
-      else if (totalRating <= 100) userLevel = 'استاندارد'
-      else if (totalRating <= 300) userLevel = 'حرفه‌ای'
-      else userLevel = 'استاد'
+    if (commentResult.error) {
+      return res.status(commentResult.error.status).send({ message: commentResult.error.message })
     }
 
-    user.user_score = totalRating
-    user.user_level = userLevel
-
-    const totalComments = await CommentModel.countDocuments({ user: user_id, comment_for: 'user' })
-    const averageRating = totalRating / totalComments
-    user.rate = averageRating.toFixed(1)
-    await user.save()
+    const user = await UserModel.findById(user_id)
 
     const notification = new NotificationModel({
       user_id: user._id,
@@ -105,7 +122,7 @@ const doneProjectWeb = async (req, res, next) => {
     const userId = decodedToken.id
 
     const { project_id, comment, rate, user_id } = req.body
-    if (!project_id || !comment || !rate || !user_id) {
+    if (!project_id || !comment || !user_id) {
       return res.status(400).send({ message: 'All fields are required' })
     }
 
@@ -117,43 +134,20 @@ const doneProjectWeb = async (req, res, next) => {
     project.status = 'done'
     await project.save()
 
-    const newComment = new CommentModel({
-      user: user_id,
-      project: project_id,
-      creator: userId,
-      rating: rate,
+    const commentResult = await saveProjectComment({
+      targetUserId: user_id,
+      projectId: project_id,
+      creatorId: userId,
       comment,
-      comment_for: 'user',
-      status: 'pending'
+      rate,
+      commentFor: 'user'
     })
-    await newComment.save()
 
-    const user = await UserModel.findById(user_id)
-
-    // پیدا کردن کامنت‌ها و محاسبه‌ی امتیاز کل
-    const comments = await CommentModel.find({ user: user_id, comment_for: 'user' })
-    const totalRating = Number(comments.reduce((acc, comment) => acc + comment.rating, 0))
-
-    let userLevel
-    if (user.expertise === 'مدل') {
-      if (totalRating <= 50) userLevel = 'تازه وارد'
-      else if (totalRating <= 100) userLevel = 'استاندارد'
-      else if (totalRating <= 300) userLevel = 'حرفه‌ای'
-      else userLevel = 'استاد'
-    } else if (['زیبایی', 'عکاس'].includes(user.expertise)) {
-      if (totalRating <= 50) userLevel = 'تازه وارد'
-      else if (totalRating <= 100) userLevel = 'استاندارد'
-      else if (totalRating <= 300) userLevel = 'حرفه‌ای'
-      else userLevel = 'استاد'
+    if (commentResult.error) {
+      return res.status(commentResult.error.status).send({ message: commentResult.error.message })
     }
 
-    user.user_score = totalRating
-    user.user_level = userLevel
-
-    const totalComments = await CommentModel.countDocuments({ user: user_id, comment_for: 'user' })
-    const averageRating = totalRating / totalComments
-    user.rate = averageRating.toFixed(1)
-    await user.save()
+    const user = await UserModel.findById(user_id)
 
     const notification = new NotificationModel({
       user_id: user._id,
@@ -182,7 +176,7 @@ const cancleProject = async (req, res, next) => {
 
     const { project_id, comment, rate, user_id } = req.body
 
-    if (!project_id || !comment || !rate || !user_id) {
+    if (!project_id || !comment || !user_id) {
       return res.status(400).send({ message: 'All fields are required' })
     }
 
@@ -194,16 +188,18 @@ const cancleProject = async (req, res, next) => {
     project.status = 'cancled'
     await project.save()
 
-    const newComment = new CommentModel({
-      user: user_id,
-      project: project_id,
-      creator: userId,
-      rating: rate,
+    const commentResult = await saveProjectComment({
+      targetUserId: user_id,
+      projectId: project_id,
+      creatorId: userId,
       comment,
-      comment_for: 'project',
-      status: 'pending'
+      rate,
+      commentFor: 'project'
     })
-    await newComment.save()
+
+    if (commentResult.error) {
+      return res.status(commentResult.error.status).send({ message: commentResult.error.message })
+    }
 
     res.status(200).json({ message: 'پروژه با موفقیت تغییر یافت شد' })
   } catch (error) {
@@ -363,6 +359,14 @@ const setRateProject = async (req, res, next) => {
     if (!project) {
       return res.status(403).send({ message: 'Access denied: You are not the creator of this project.' })
     }
+
+    const alreadyRated = project.ratings.some((item) =>
+      item.creator_id.toString() === userId.toString()
+    )
+    if (alreadyRated) {
+      return res.status(400).send({ message: 'شما قبلاً به این پروژه امتیاز داده‌اید' })
+    }
+
     project.ratings.push({
       project_id,
       rating: rate,
diff --git a/controllers/application/register/verifyController.js b/controllers/application/register/verifyController.js
index c1a2d54..a43bb71 100644
--- a/controllers/application/register/verifyController.js
+++ b/controllers/application/register/verifyController.js
@@ -43,7 +43,7 @@ const verifyUser = async (req, res, next) => {
 
     return res.status(422).json({
       error: true,
-      message: 'کد تایید اشتباه است'
+      message: 'کد را اشتباه وارد کردید'
     })
   } catch (error) {
     next(error)
diff --git a/controllers/application/users/getUserController.js b/controllers/application/users/getUserController.js
index 6965266..5a76a9a 100644
--- a/controllers/application/users/getUserController.js
+++ b/controllers/application/users/getUserController.js
@@ -6,11 +6,22 @@ const jwt = require("jsonwebtoken");
 const moment = require("moment-jalaali");
 const NotificationModel = require("../../../models/NotificationModel");
 const CommentModel = require("../../../models/CommentModel");
+const {
+  hasCreatorRatedUser,
+  resolveRatingForComment,
+  recalculateUserRating,
+} = require("../../../utils/commentRating");
+const { createCommentNotification } = require("../../../utils/commentNotification");
 const { ProvinceModel, CityModel } = require("../../../models/StateCity");
 const OfferModel = require("../../../models/OfferModel");
 const PostModel = require("../../../models/PostModel");
 const ProjectModel = require("../../../models/ProjectModel");
 const LicenseModel = require("../../../models/license")
+const {
+  viewerIsBlockedBy,
+  blockedProfilePayload,
+  getBlockerUserIds,
+} = require("../../../utils/blockVisibility")
 
 
 const getAllLicenses = async (req, res, next) => {
@@ -775,9 +786,19 @@ const getPostsWeb = async (req, res, next) => {
         .lean();
       const userIds = [...new Set(explorePosts.map((p) => String(p.user_id)))];
       const usersMap = await UserModel.find({ _id: { $in: userIds } })
-        .select('_id user_name first_name last_name expertise province city user_level')
+        .select('_id user_name first_name last_name expertise province city user_level show_location blocked_users')
         .lean();
       const usersById = Object.fromEntries(usersMap.map((u) => [String(u._id), u]));
+
+      if (decodedToken?.id) {
+        const blockerIds = new Set(
+          (await getBlockerUserIds(UserModel, decodedToken.id)).map(String)
+        );
+        explorePosts = explorePosts.filter(
+          (post) => !blockerIds.has(String(post.user_id))
+        );
+      }
+
       explorePosts = explorePosts.map((post) => {
         const user = usersById[String(post.user_id)] || {};
         return {
@@ -786,8 +807,9 @@ const getPostsWeb = async (req, res, next) => {
           first_name: user.first_name || '',
           last_name: user.last_name || '',
           expertise: user.expertise || '',
-          province: user.province || {},
-          city: user.city || {},
+          province: user.show_location ? user.province || {} : {},
+          city: user.show_location ? user.city || {} : {},
+          show_location: user.show_location,
           user_level: user.user_level || '',
           likesCount: post.likes ? post.likes.length : 0,
           is_liked: false,
@@ -817,8 +839,15 @@ const getPostsWeb = async (req, res, next) => {
     if (userLevel) userFilter.user_level = userLevel;
     if (_id) userFilter._id = _id;
 
+    if (_id && decodedToken?.id) {
+      const profileOwner = await UserModel.findById(_id).select('blocked_users');
+      if (viewerIsBlockedBy(profileOwner, decodedToken.id)) {
+        return res.status(200).json({ posts: [], totalPages: 0, totalItems: 0 });
+      }
+    }
+
     const users = await UserModel.find(userFilter)
-      .select("_id user_name first_name last_name expertise province city user_level")
+      .select("_id user_name first_name last_name expertise province city user_level show_location")
       .lean();
 
     if (!users || users.length === 0) {
@@ -836,6 +865,16 @@ const getPostsWeb = async (req, res, next) => {
       return res.status(200).json({ posts: [], totalPages: 0, totalItems: 0 });
     }
 
+    if (decodedToken?.id) {
+      const blockerIds = new Set(
+        (await getBlockerUserIds(UserModel, decodedToken.id)).map(String)
+      );
+      posts = posts.filter((post) => !blockerIds.has(String(post.user_id)));
+      if (!posts.length) {
+        return res.status(200).json({ posts: [], totalPages: 0, totalItems: 0 });
+      }
+    }
+
     let likeFilter = {};
     if (decodedToken) likeFilter.userId = decodedToken.id;
     const likes = decodedToken
@@ -860,8 +899,9 @@ const getPostsWeb = async (req, res, next) => {
         first_name: user?.first_name || "",
         last_name: user?.last_name || "",
         expertise: user?.expertise || "",
-        province: user?.province || {},
-        city: user?.city || {},
+        province: user?.show_location ? user?.province || {} : {},
+        city: user?.show_location ? user?.city || {} : {},
+        show_location: user?.show_location,
         user_level: user?.user_level || "",
         likesCount: post.likes ? post.likes.length : 0,
         is_liked: !!likesMap[post._id.toString()],
@@ -918,6 +958,10 @@ const getSingleUser = async (req, res, next) => {
     const blockedByCurrentUser = user.blocked_by.includes(userReqId);
     const blockedYou = user.blocked_users.includes(userReqId);
 
+    if (blockedYou) {
+      return res.status(200).json({ user: blockedProfilePayload(user) });
+    }
+
     // Allow chat
     const offerExists = await OfferModel.exists({
       $or: [
@@ -937,6 +981,7 @@ const getSingleUser = async (req, res, next) => {
       user_name: user.user_name,
       show_location: user.show_location,
       is_verified: user.is_verified,
+      is_Register: user.is_Register,
       user_score: user.user_score,
       rate: user.rate,
       bio: user.bio,
@@ -948,8 +993,8 @@ const getSingleUser = async (req, res, next) => {
       profile_image: user.profile_image,
       lat: user.show_location ? user.lat : null,
       lng: user.show_location ? user.lng : null,
-      province: user.province,
-      city: user.city,
+      province: user.show_location ? user.province : null,
+      city: user.show_location ? user.city : null,
       address: user.show_location ? user.address : null,
       is_blocked: blockedByCurrentUser,
       blocked_you: blockedYou,
@@ -1016,6 +1061,11 @@ const getSingleUserWeb = async (req, res, next) => {
         receiver: user._id,
       });
     }
+
+    if (blockedYou && userReqId) {
+      return res.status(200).json({ user: blockedProfilePayload(user) });
+    }
+
     // دریافت تعداد پست‌ها و پروژه‌ها
     const postsCount = await PostModel.countDocuments({
       user_id: user._id,
@@ -1043,6 +1093,7 @@ const getSingleUserWeb = async (req, res, next) => {
       user_name: user.user_name,
       show_location: user.show_location,
       is_verified: user.is_verified,
+      is_Register: user.is_Register,
       user_score: user.user_score,
       rate: user.rate,
       bio: user.bio,
@@ -1054,8 +1105,8 @@ const getSingleUserWeb = async (req, res, next) => {
       profile_image: user.profile_image,
       lat: user.show_location ? user.lat : null,
       lng: user.show_location ? user.lng : null,
-      province: user.province,
-      city: user.city,
+      province: user.show_location ? user.province : null,
+      city: user.show_location ? user.city : null,
       address: user.show_location ? user.address : null,
       is_blocked: blockedByCurrentUser,
       blocked_you: blockedYou,
@@ -1099,6 +1150,11 @@ const getUserContactInfo = async (req, res, next) => {
     next(error);
   }
 };
+const {
+  applyAutoBlockSuspension,
+  clearAutoBlockSuspension
+} = require('../../../utils/blockSuspension')
+
 const blockUser = async (req, res) => {
   try {
     const { user_to_block } = req.body;
@@ -1107,17 +1163,30 @@ const blockUser = async (req, res) => {
     const decodedToken = jwt.verify(token, process.env.APP_SECRET);
     const userReqId = decodedToken.id;
 
-    const currentUser = await UserModel.findById(userReqId); // Req
-    const userToBlock = await UserModel.findById(user_to_block); // To Block
-
-    userToBlock.blocked_by.push(currentUser);
-    currentUser.blocked_users.push(userToBlock);
-
-    // بررسی تعداد بلاک ها و تنظیم block_status
-    if (userToBlock.blocked_by.length >= 3) {
-      userToBlock.block_status = true;
+    if (userReqId === user_to_block) {
+      return res.status(400).json({ message: "امکان بلاک خودتان وجود ندارد" });
     }
 
+    const currentUser = await UserModel.findById(userReqId);
+    const userToBlock = await UserModel.findById(user_to_block);
+
+    if (!currentUser || !userToBlock) {
+      return res.status(404).json({ message: "کاربر یافت نشد" });
+    }
+
+    const alreadyBlocked = userToBlock.blocked_by.some((id) =>
+      id.equals(currentUser._id)
+    );
+
+    if (alreadyBlocked) {
+      return res.status(400).json({ message: "این کاربر قبلاً بلاک شده است" });
+    }
+
+    userToBlock.blocked_by.push(currentUser._id);
+    currentUser.blocked_users.push(userToBlock._id);
+
+    applyAutoBlockSuspension(userToBlock);
+
     await currentUser.save();
     await userToBlock.save();
 
@@ -1136,18 +1205,17 @@ const unblockUser = async (req, res) => {
     const decodedToken = jwt.verify(token, process.env.APP_SECRET);
     const userReqId = decodedToken.id;
 
-    const currentUser = await UserModel.findById(userReqId); // Req
-    const userToUnblock = await UserModel.findById(user_to_unblock); // To Unblock
+    const currentUser = await UserModel.findById(userReqId);
+    const userToUnblock = await UserModel.findById(user_to_unblock);
+
+    if (!currentUser || !userToUnblock) {
+      return res.status(404).json({ message: "کاربر یافت نشد" });
+    }
 
-    // حذف کاربر از لیست blocked_by کاربر فعلی
     currentUser.blocked_users.pull(userToUnblock._id);
-    // حذف کاربر از لیست blocked_users کاربر مورد نظر
     userToUnblock.blocked_by.pull(currentUser._id);
 
-    // بررسی تعداد بلاک ها و تنظیم block_status
-    if (userToUnblock.blocked_by.length < 3) {
-      userToUnblock.block_status = null;
-    }
+    clearAutoBlockSuspension(userToUnblock);
 
     await currentUser.save();
     await userToUnblock.save();
@@ -1163,6 +1231,7 @@ const getComments = async (req, res, next) => {
   try {
     const token = req.header("Authorization").split(" ")[1];
     if (!token) return res.status(401).send("Access Denied");
+    const decodedToken = jwt.verify(token, process.env.APP_SECRET);
     const user_id = req.query.user_id;
     const post_id = req.query.post_id;
 
@@ -1192,27 +1261,53 @@ const getComments = async (req, res, next) => {
 
     const comments = await CommentModel.paginate(filter, options);
 
-    const formattedComments = comments.docs.map((comment) => ({
-      _id: comment._id,
-      comment: comment.comment,
-      rating: comment.rating,
-      createdAt: moment(comment.createdAt).format("jYYYY-jMM-jDD HH:mm"),
-      status: comment.status,
-      user: {
-        profile_image: comment.creator.profile_image,
-        user_name: comment.creator.user_name,
-        is_verified: comment.creator.is_verified,
-        _id: comment.creator._id,
-      },
-      project: comment.project ? comment.project.project_name : null,
-      post_id: comment.post ? comment.post.toString() : null,
-    }));
+    const earliestRatedComments = await CommentModel.find({
+      user: user_id,
+      rating: { $ne: null, $gt: 0 },
+    })
+      .select("creator _id createdAt")
+      .sort({ createdAt: 1 });
+
+    const ratedCreatorCommentIds = new Map();
+    for (const ratedComment of earliestRatedComments) {
+      const creatorId = ratedComment.creator.toString();
+      if (!ratedCreatorCommentIds.has(creatorId)) {
+        ratedCreatorCommentIds.set(creatorId, ratedComment._id.toString());
+      }
+    }
+
+    const formattedComments = comments.docs.map((comment) => {
+      const creatorId = comment.creator._id.toString();
+      const isPrimaryRatingComment =
+        comment.rating != null &&
+        comment.rating > 0 &&
+        ratedCreatorCommentIds.get(creatorId) === comment._id.toString();
+
+      return {
+        _id: comment._id,
+        comment: comment.comment,
+        rating: isPrimaryRatingComment ? comment.rating : null,
+        createdAt: moment(comment.createdAt).format("jYYYY-jMM-jDD HH:mm"),
+        status: comment.status,
+        user: {
+          profile_image: comment.creator.profile_image,
+          user_name: comment.creator.user_name,
+          is_verified: comment.creator.is_verified,
+          _id: comment.creator._id,
+        },
+        project: comment.project ? comment.project.project_name : null,
+        post_id: comment.post ? comment.post.toString() : null,
+      };
+    });
+
+    const hasRated = await hasCreatorRatedUser(decodedToken.id, user_id);
 
     res.status(200).json({
       comments: formattedComments,
       totalPages: comments.totalPages,
       totalItems: comments.totalDocs,
       currentPage: comments.page,
+      has_rated: hasRated,
     });
   } catch (error) {
     next(error);
@@ -1231,20 +1326,17 @@ const createUserComment = async (req, res, next) => {
       return res.status(400).send({ message: "All fields are required" });
     }
 
-    const existingRating = await CommentModel.findOne({
-      user: user_id,
-      creator: creatorId,
-      comment_for: post_id ? "post" : "user",
-      rating: { $exists: true, $ne: null }
-    });
+    const { ratingValue, isNewRating, requiresRating } =
+      await resolveRatingForComment({
+        creatorId,
+        targetUserId: user_id,
+        rate,
+      });
 
-    let ratingValue = rate;
-    if (existingRating) {
-      ratingValue = existingRating.rating;
-    } else {
-      if (!rate || rate < 1 || rate > 5) {
-        return res.status(400).send({ message: "Rating must be between 1 and 5" });
-      }
+    if (requiresRating) {
+      return res
+        .status(400)
+        .send({ message: "Rating must be between 1 and 5" });
     }
 
     const newComment = new CommentModel({
@@ -1258,50 +1350,16 @@ const createUserComment = async (req, res, next) => {
     });
     await newComment.save();
 
-    const user = await UserModel.findById(user_id);
-
-    // محاسبه امتیاز جدید کاربر
-    const comments = await CommentModel.find({
-      user: user_id,
-      comment_for: "user",
-    });
-    const totalRating = comments.reduce(
-      (acc, comment) => acc + comment.rating,
-      0
-    );
-    const totalComments = comments.length;
-    const averageRating = totalRating / totalComments;
-
-    // تعیین سطح کاربر
-    let userLevel;
-    if (user.expertise === "مدل") {
-      if (totalRating <= 50) userLevel = "تازه وارد";
-      else if (totalRating <= 100) userLevel = "استاندارد";
-      else if (totalRating <= 300) userLevel = "حرفه‌ای";
-      else userLevel = "استاد";
-    } else if (["زیبایی", "عکاس"].includes(user.expertise)) {
-      if (totalRating <= 50) userLevel = "تازه وارد";
-      else if (totalRating <= 100) userLevel = "استاندارد";
-      else if (totalRating <= 300) userLevel = "حرفه‌ای";
-      else userLevel = "استاد";
+    if (isNewRating) {
+      await recalculateUserRating(user_id);
     }
 
-    // به‌روزرسانی اطلاعات کاربر
-    user.user_score = totalRating;
-    user.user_level = userLevel;
-    user.rate = averageRating.toFixed(1);
-    await user.save();
-
-    // ارسال نوتیفیکیشن
-    const notification = new NotificationModel({
-      user_id: user._id,
-      type: "user_comment",
-      title: "نظر جدید",
-      description: `یک کاربر جدید برای شما نظر ثبت کرد:
-      ${comment}
-      امتیاز: ${rate} از 5`,
+    await createCommentNotification({
+      ownerId: user_id,
+      commenterId: creatorId,
+      entityId: post_id || user_id,
+      type: post_id ? "post_comment" : "profile_comment",
     });
-    await notification.save();
 
     res.status(201).json({
       message: "نظر با موفقیت ثبت شد و بعد از تایید، منتشر میشود.",
diff --git a/controllers/application/verify/addressController.js b/controllers/application/verify/addressController.js
index baf7330..b8217f9 100644
--- a/controllers/application/verify/addressController.js
+++ b/controllers/application/verify/addressController.js
@@ -9,7 +9,18 @@ const setAddress = async (req, res, next) => {
     if (!token) return res.status(401).send('Access Denied')
     const { province_id, city_id, address, lat, lng, show_location } = req.body
     // اعتبارسنجی داده‌ها
-    if (!province_id || !city_id || !address || !lat || !lng || show_location === 'undefined') {
+    if (
+      !province_id ||
+      !city_id ||
+      !address ||
+      lat === undefined ||
+      lat === null ||
+      lat === '' ||
+      lng === undefined ||
+      lng === null ||
+      lng === '' ||
+      show_location === undefined
+    ) {
       return res.status(422).json({
         error: true,
         message: 'اطلاعات ارسالی ناقص است'
@@ -41,7 +52,8 @@ const setAddress = async (req, res, next) => {
     user.address = address
     user.lat = lat
     user.lng = lng
-    user.show_location = show_location
+    user.show_location =
+      show_location === true || show_location === 'true'
 
     await user.save()
 
@@ -60,7 +72,18 @@ const updateAddress = async (req, res, next) => {
     const { province_id, city_id, address, lat, lng, show_location } = req.body
 
     // اعتبارسنجی داده‌ها
-    if (!province_id || !city_id || !address || !lat || !lng || show_location === undefined) {
+    if (
+      !province_id ||
+      !city_id ||
+      !address ||
+      lat === undefined ||
+      lat === null ||
+      lat === '' ||
+      lng === undefined ||
+      lng === null ||
+      lng === '' ||
+      show_location === undefined
+    ) {
       return res.status(422).json({
         error: true,
         message: 'اطلاعات ارسالی ناقص است'
@@ -95,7 +118,8 @@ const updateAddress = async (req, res, next) => {
     user.address = address
     user.lat = lat
     user.lng = lng
-    user.show_location = show_location
+    user.show_location =
+      show_location === true || show_location === 'true'
 
     await user.save()
 
diff --git a/controllers/application/verify/completeRegistrationController.js b/controllers/application/verify/completeRegistrationController.js
new file mode 100644
index 0000000..5555ef5
--- /dev/null
+++ b/controllers/application/verify/completeRegistrationController.js
@@ -0,0 +1,39 @@
+const UserModel = require('../../../models/UserModel')
+const jwt = require('jsonwebtoken')
+
+const completeRegistration = async (req, res, next) => {
+  try {
+    const token = req.header('Authorization')?.split(' ')[1]
+    if (!token) return res.status(401).send('Access Denied')
+
+    const decodedToken = jwt.verify(token, process.env.APP_SECRET)
+    const user = await UserModel.findById(decodedToken.id)
+
+    if (!user) {
+      return res.status(404).json({
+        error: true,
+        message: 'کاربر یافت نشد'
+      })
+    }
+
+    user.is_Register = true
+
+    if (!user.is_verified || user.is_verified === 'none') {
+      user.is_verified = 'pending'
+    }
+
+    await user.save()
+
+    return res.json({
+      message: 'ثبت نام تکمیل شد',
+      is_verified: user.is_verified,
+      is_Register: user.is_Register
+    })
+  } catch (error) {
+    next(error)
+  }
+}
+
+module.exports = {
+  completeRegistration
+}
diff --git a/controllers/application/verify/setNationalCardImageController.js b/controllers/application/verify/setNationalCardImageController.js
index 75b3a5a..3547e14 100644
--- a/controllers/application/verify/setNationalCardImageController.js
+++ b/controllers/application/verify/setNationalCardImageController.js
@@ -38,6 +38,7 @@ const setNationalCardImage = async (req, res, next) => {
 
     // ذخیره مسیر فایل در دیتابیس
     user.national_card_image = `/carts/${uniqueFileName}`
+    user.is_Register = true
     user.is_verified = 'pending'
     await user.save()
 
diff --git a/index.js b/index.js
index dcde565..5ad71dc 100644
--- a/index.js
+++ b/index.js
@@ -303,6 +303,52 @@ app.post('/api/v1/chat/file', [blockCheck], async (req, res) => {
     res.status(500).json({ error: 'Server error' })
   }
 })
+
+app.delete('/api/v1/chat', [blockCheck], async (req, res) => {
+  try {
+    const userId = String(req.user._id)
+    const { messageIds } = req.body
+
+    if (!Array.isArray(messageIds) || messageIds.length === 0) {
+      return res.status(422).json({ message: 'پیامی انتخاب نشده است' })
+    }
+
+    const messages = await MessageModel.find({
+      _id: { $in: messageIds },
+      senderId: userId
+    })
+
+    if (!messages.length) {
+      return res.status(403).json({ message: 'فقط پیام‌های خودتان قابل حذف هستند' })
+    }
+
+    for (const msg of messages) {
+      if (msg.file) {
+        const relative = String(msg.file).replace(/^\//, '')
+        const filePath = path.join(__dirname, '../storage', relative)
+        if (fs.existsSync(filePath)) {
+          await fs.remove(filePath).catch(() => {})
+        }
+      }
+    }
+
+    const deletedIds = messages.map((m) => String(m._id))
+    await MessageModel.deleteMany({ _id: { $in: deletedIds } })
+
+    const receiverIds = [...new Set(messages.map((m) => String(m.receiverId)))]
+    receiverIds.forEach((receiverId) => {
+      io.to(`chat:${userId}:${receiverId}`)
+        .to(`chat:${receiverId}:${userId}`)
+        .emit('messagesDeleted', { messageIds: deletedIds, deletedBy: userId })
+    })
+
+    res.json({ deletedIds, message: 'پیام‌ها حذف شدند' })
+  } catch (error) {
+    console.error('Error deleting messages:', error)
+    res.status(500).json({ error: 'Server error' })
+  }
+})
+
 // Errors
 require('./middlewares/exception')(app)
 require('./middlewares/404')(app)
diff --git a/middlewares/blockCheck.js b/middlewares/blockCheck.js
index fb46d6f..357a056 100644
--- a/middlewares/blockCheck.js
+++ b/middlewares/blockCheck.js
@@ -1,8 +1,11 @@
-const UserModel = require('../models/UserModel') // مسیر درست به مدل کاربر
+const UserModel = require('../models/UserModel')
 const jwt = require('jsonwebtoken')
+const {
+  expireBlockSuspensionIfNeeded,
+  getBlockedAccountResponse
+} = require('../utils/blockSuspension')
 
 module.exports = async (req, res, next) => {
-  console.log(2);
   try {
     if (!('authorization' in req.headers)) {
       return res.status(401).send({
@@ -24,17 +27,15 @@ module.exports = async (req, res, next) => {
       })
     }
 
-    const user = await UserModel.findById(decodedToken.id)
-    if (user.block_status === true) {
-      return res.status(403).send({
-        status: 'error',
-        code: 403,
-        message: 'حساب کاربری شما مسدود شده است، برای اطلاعات بیشتر با پشتیبانی تماس بگیرید!',
-        type: 'block'
-      })
+    let user = await UserModel.findById(decodedToken.id)
+    user = await expireBlockSuspensionIfNeeded(user)
+
+    const blockResponse = getBlockedAccountResponse(user)
+    if (blockResponse) {
+      return res.status(403).send(blockResponse)
     }
 
-    req.user = user // کاربر را به درخواست اضافه کنید تا در سایر middleware ها و کنترلرها استفاده شود.
+    req.user = user
     next()
   } catch (error) {
     console.error('Error in blockCheck middleware:', error)
diff --git a/models/CommentModel.js b/models/CommentModel.js
index 07c4103..30f2cc8 100644
--- a/models/CommentModel.js
+++ b/models/CommentModel.js
@@ -25,7 +25,8 @@ const commentSchema = new mongoose.Schema({
   },
   rating: {
     type: Number,
-    required: true
+    required: false,
+    default: null
   },
   comment: {
     type: String,
diff --git a/models/UserModel.js b/models/UserModel.js
index 9e8731b..baeffdc 100644
--- a/models/UserModel.js
+++ b/models/UserModel.js
@@ -317,6 +317,11 @@ const userSchema = new mongoose.Schema({
     required: false,
     default: null
   },
+  blocked_until: {
+    type: Date,
+    required: false,
+    default: null
+  },
   advertising_profiles: [{
     type: mongoose.Schema.Types.ObjectId,
     ref: 'AdvertisingProfile'
diff --git a/routes/application/verify/index.js b/routes/application/verify/index.js
index 0bec659..1b9fc5d 100644
--- a/routes/application/verify/index.js
+++ b/routes/application/verify/index.js
@@ -9,6 +9,7 @@ const { setConversation, updateConversation } = require('../../../controllers/ap
 const { saveAuth, saveAuthValidationRules, updateShaba } = require('../../../controllers/application/verify/authController')
 const { setAddress, updateAddress } = require('../../../controllers/application/verify/addressController')
 const { setNationalCardImage } = require('../../../controllers/application/verify/setNationalCardImageController')
+const { completeRegistration } = require('../../../controllers/application/verify/completeRegistrationController')
 const blockCheck = require('../../../middlewares/blockCheck')
 const auth = require('../../../middlewares/auth')
 const { setServices, updateServices } = require('../../../controllers/application/verify/servicesController')
@@ -34,5 +35,6 @@ router.patch('/shaba', [blockCheck], [auth], updateShaba)
 router.post('/address', setAddress)
 router.patch('/address', [blockCheck], [auth], updateAddress)
 router.post('/national_card_image', setNationalCardImage)
+router.post('/complete', completeRegistration)
 
 module.exports = router
diff --git a/utils/blockSuspension.js b/utils/blockSuspension.js
new file mode 100644
index 0000000..0d503e3
--- /dev/null
+++ b/utils/blockSuspension.js
@@ -0,0 +1,77 @@
+const moment = require('moment-jalaali')
+
+const BLOCK_THRESHOLD = 5
+const BLOCK_DURATION_MS = 7 * 24 * 60 * 60 * 1000
+
+const applyAutoBlockSuspension = (user) => {
+  if (user.blocked_by.length >= BLOCK_THRESHOLD) {
+    user.block_status = true
+    user.blocked_until = new Date(Date.now() + BLOCK_DURATION_MS)
+  }
+}
+
+const clearAutoBlockSuspension = (user) => {
+  if (user.blocked_by.length < BLOCK_THRESHOLD && user.blocked_until) {
+    user.block_status = null
+    user.blocked_until = null
+  }
+}
+
+const isUserCurrentlyBlocked = (user) => {
+  if (!user.block_status) {
+    return false
+  }
+
+  if (user.blocked_until) {
+    if (new Date() >= new Date(user.blocked_until)) {
+      return false
+    }
+    return true
+  }
+
+  return user.block_status === true
+}
+
+const expireBlockSuspensionIfNeeded = async (user) => {
+  if (!user.blocked_until) {
+    return user
+  }
+
+  if (new Date() >= new Date(user.blocked_until)) {
+    user.block_status = null
+    user.blocked_until = null
+    await user.save()
+  }
+
+  return user
+}
+
+const getBlockedAccountResponse = (user) => {
+  if (!isUserCurrentlyBlocked(user)) {
+    return null
+  }
+
+  const untilText = user.blocked_until
+    ? moment(user.blocked_until).format('jYYYY/jMM/jDD')
+    : null
+
+  return {
+    status: 'error',
+    code: 403,
+    message: untilText
+      ? `حساب کاربری شما به دلیل بلاک شدن توسط ${BLOCK_THRESHOLD} کاربر تا تاریخ ${untilText} غیرفعال است.`
+      : 'حساب کاربری شما مسدود شده است، برای اطلاعات بیشتر با پشتیبانی تماس بگیرید!',
+    type: 'block',
+    blocked_until: user.blocked_until || null
+  }
+}
+
+module.exports = {
+  BLOCK_THRESHOLD,
+  BLOCK_DURATION_MS,
+  applyAutoBlockSuspension,
+  clearAutoBlockSuspension,
+  isUserCurrentlyBlocked,
+  expireBlockSuspensionIfNeeded,
+  getBlockedAccountResponse
+}
diff --git a/utils/blockVisibility.js b/utils/blockVisibility.js
new file mode 100644
index 0000000..ee485c6
--- /dev/null
+++ b/utils/blockVisibility.js
@@ -0,0 +1,30 @@
+/** Viewer (blocked person) cannot see profile/posts of user who blocked them */
+function viewerIsBlockedBy(user, viewerId) {
+  if (!user || !viewerId) return false
+  return user.blocked_users.some((id) => String(id) === String(viewerId))
+}
+
+function blockedProfilePayload(user) {
+  return {
+    _id: user._id,
+    user_name: user.user_name,
+    blocked_you: true,
+    is_self: false,
+    user_type: user.user_type,
+    postsCount: 0,
+    allProjectsCount: 0,
+    successfulProjectsCount: 0,
+  }
+}
+
+/** User IDs who have blocked the viewer */
+async function getBlockerUserIds(UserModel, viewerId) {
+  if (!viewerId) return []
+  return UserModel.find({ blocked_users: viewerId }).distinct('_id')
+}
+
+module.exports = {
+  viewerIsBlockedBy,
+  blockedProfilePayload,
+  getBlockerUserIds,
+}
diff --git a/utils/commentNotification.js b/utils/commentNotification.js
new file mode 100644
index 0000000..fe1bf52
--- /dev/null
+++ b/utils/commentNotification.js
@@ -0,0 +1,57 @@
+const NotificationModel = require('../models/NotificationModel')
+const { resolveCourseOwnerId } = require('./likeNotification')
+
+const COMMENT_TITLE = 'یک کامنت برای شما ثبت شد'
+const COMMENT_DESCRIPTION = 'یک کامنت برای شما ثبت شد'
+const RATING_TITLE = 'یک امتیاز برای شما ثبت شد'
+const RATING_DESCRIPTION = 'یک امتیاز برای شما ثبت شد'
+
+const createCommentNotification = async ({
+  ownerId,
+  commenterId,
+  entityId,
+  type = 'post_comment'
+}) => {
+  try {
+    if (!ownerId || !commenterId || !entityId) return
+    if (String(ownerId) === String(commenterId)) return
+
+    await NotificationModel.create({
+      user_id: ownerId,
+      project_post_id: entityId,
+      type,
+      title: COMMENT_TITLE,
+      description: COMMENT_DESCRIPTION
+    })
+  } catch (error) {
+    console.error('Error creating comment notification:', error)
+  }
+}
+
+const createRatingNotification = async ({
+  ownerId,
+  raterId,
+  entityId,
+  type = 'billboard_rating'
+}) => {
+  try {
+    if (!ownerId || !raterId || !entityId) return
+    if (String(ownerId) === String(raterId)) return
+
+    await NotificationModel.create({
+      user_id: ownerId,
+      project_post_id: entityId,
+      type,
+      title: RATING_TITLE,
+      description: RATING_DESCRIPTION
+    })
+  } catch (error) {
+    console.error('Error creating rating notification:', error)
+  }
+}
+
+module.exports = {
+  createCommentNotification,
+  createRatingNotification,
+  resolveCourseOwnerId
+}
diff --git a/utils/commentRating.js b/utils/commentRating.js
new file mode 100644
index 0000000..2c917ea
--- /dev/null
+++ b/utils/commentRating.js
@@ -0,0 +1,84 @@
+const CommentModel = require('../models/CommentModel')
+const UserModel = require('../models/UserModel')
+
+const RATED_FILTER = { $ne: null, $gt: 0 }
+
+const findExistingUserRating = (creatorId, targetUserId) => {
+  return CommentModel.findOne({
+    creator: creatorId,
+    user: targetUserId,
+    rating: RATED_FILTER
+  })
+}
+
+const hasCreatorRatedUser = async (creatorId, targetUserId) => {
+  const existing = await findExistingUserRating(creatorId, targetUserId)
+  return !!existing
+}
+
+const resolveRatingForComment = async ({ creatorId, targetUserId, rate }) => {
+  const existingRating = await findExistingUserRating(creatorId, targetUserId)
+
+  if (existingRating) {
+    return { ratingValue: null, isNewRating: false }
+  }
+
+  if (!rate || rate < 1 || rate > 5) {
+    return { ratingValue: null, isNewRating: false, requiresRating: true }
+  }
+
+  return { ratingValue: rate, isNewRating: true }
+}
+
+const getUserLevel = (user, totalRating) => {
+  if (user.expertise === 'مدل') {
+    if (totalRating <= 50) return 'تازه وارد'
+    if (totalRating <= 100) return 'استاندارد'
+    if (totalRating <= 300) return 'حرفه‌ای'
+    return 'استاد'
+  }
+
+  if (['زیبایی', 'عکاس'].includes(user.expertise)) {
+    if (totalRating <= 50) return 'تازه وارد'
+    if (totalRating <= 100) return 'استاندارد'
+    if (totalRating <= 300) return 'حرفه‌ای'
+    return 'استاد'
+  }
+
+  return user.user_level
+}
+
+const recalculateUserRating = async (targetUserId) => {
+  const user = await UserModel.findById(targetUserId)
+  if (!user) return
+
+  const ratedComments = await CommentModel.find({
+    user: targetUserId,
+    rating: RATED_FILTER
+  }).sort({ createdAt: 1 })
+
+  const uniqueRatingsByCreator = new Map()
+  for (const comment of ratedComments) {
+    const creatorKey = comment.creator.toString()
+    if (!uniqueRatingsByCreator.has(creatorKey)) {
+      uniqueRatingsByCreator.set(creatorKey, comment.rating)
+    }
+  }
+
+  const ratings = Array.from(uniqueRatingsByCreator.values())
+  const totalRating = ratings.reduce((acc, rating) => acc + rating, 0)
+  const ratedCount = ratings.length
+
+  user.user_score = totalRating
+  user.user_level = getUserLevel(user, totalRating)
+  user.rate = ratedCount > 0 ? (totalRating / ratedCount).toFixed(1) : '0'
+  await user.save()
+}
+
+module.exports = {
+  RATED_FILTER,
+  findExistingUserRating,
+  hasCreatorRatedUser,
+  resolveRatingForComment,
+  recalculateUserRating
+}
diff --git a/utils/likeNotification.js b/utils/likeNotification.js
new file mode 100644
index 0000000..87ad0a6
--- /dev/null
+++ b/utils/likeNotification.js
@@ -0,0 +1,47 @@
+const NotificationModel = require('../models/NotificationModel')
+const AcademyModel = require('../models/AcademyModel')
+
+const LIKE_TITLE = 'پست شما لایک شد'
+const LIKE_DESCRIPTION = 'پست شما لایک شد'
+
+const createLikeNotification = async ({
+  ownerId,
+  likerId,
+  entityId,
+  type = 'post_like'
+}) => {
+  try {
+    if (!ownerId || !likerId || !entityId) return
+    if (String(ownerId) === String(likerId)) return
+
+    await NotificationModel.create({
+      user_id: ownerId,
+      project_post_id: entityId,
+      type,
+      title: LIKE_TITLE,
+      description: LIKE_DESCRIPTION
+    })
+  } catch (error) {
+    console.error('Error creating like notification:', error)
+  }
+}
+
+const resolveCourseOwnerId = async (course) => {
+  if (course?.user_id) {
+    return course.user_id
+  }
+
+  if (course?.academyId) {
+    const academy = await AcademyModel.findById(course.academyId)
+    if (academy?.userId) {
+      return academy.userId
+    }
+  }
+
+  return null
+}
+
+module.exports = {
+  createLikeNotification,
+  resolveCourseOwnerId
+}