# 📚 EduMetrix Assignment System - Complete Guide

## ✅ SYSTEM STATUS: FULLY OPERATIONAL

The assignment system has been successfully integrated into the EduMetrix platform and is **fully working**!

## 🚀 **LIVE ACCESS POINTS**

### **Backend Server:**
- **URL:** `https://backend.edumetrix.uk`
- **Status:** ✅ Running
- **Database:** ✅ MongoDB Connected

### **Frontend Portals:**
- **Admin Portal:** `http://localhost:3001`
- **Teacher Portal:** `http://localhost:3002` 
- **Student Portal:** `http://localhost:3003`
- **Status:** ✅ All Running

## 🔐 **LOGIN CREDENTIALS**

```
Admin:   admin@edumetrix.uk   / admin123
Teacher: teacher@edumetrix.uk / teacher123  
Student: student@edumetrix.uk / student123
```

## 📋 **HOW TO ACCESS ASSIGNMENT SYSTEM**

### **For Teachers:**
1. Go to `http://localhost:3002`
2. Login with teacher credentials
3. On dashboard, click **"Assignments"** card
4. Or directly visit: `http://localhost:3002/teacher/assignments`

### **For Students:**
1. Go to `http://localhost:3003`
2. Login with student credentials  
3. On dashboard, click **"Assignments"** card
4. Or directly visit: `http://localhost:3003/student/assignments`

## 🎯 **ASSIGNMENT SYSTEM FEATURES**

### **Teacher Capabilities:**
✅ **Create Assignments** with rich text descriptions  
✅ **Attach Files** (PDF, Word, PowerPoint, Images up to 10MB)  
✅ **Select Specific Students** to assign tasks to  
✅ **Set Due Dates** with late submission policies  
✅ **Publish Assignments** when ready  
✅ **Review Submissions** with complete grading interface  
✅ **Provide Detailed Feedback** and comments  
✅ **Request Revisions** with deadlines  
✅ **Track Statistics** - submission rates, pending reviews  
✅ **Real-time Notifications** when students submit  

### **Student Capabilities:**
✅ **View Assigned Tasks** with all details and attachments  
✅ **Download Assignment Files** from teachers  
✅ **Submit Text Responses** with rich formatting  
✅ **Upload Files** (multiple file support)  
✅ **See Grades and Feedback** instantly  
✅ **Handle Revision Requests** with resubmission  
✅ **Track Assignment History** and status  
✅ **Real-time Notifications** for grades and assignments  

## 🔧 **API ENDPOINTS WORKING**

### **Teacher APIs:**
- `POST /api/teacher/assignments` - Create assignment
- `GET /api/teacher/assignments` - List assignments  
- `PUT /api/teacher/assignments/:id/publish` - Publish assignment
- `GET /api/teacher/assignments/:id/submissions` - View submissions
- `PUT /api/teacher/assignments/submissions/:id/grade` - Grade submission

### **Student APIs:**
- `GET /api/student/assignments` - Get assignments
- `GET /api/student/assignments/:id` - Get assignment details
- `POST /api/student/assignments/:id/submit` - Submit assignment
- `GET /api/student/assignments/submissions/history/:studentId` - History

## 📁 **FILE SYSTEM**

### **Upload Directories:**
- `uploads/assignments/teacher/` - Teacher attachments
- `uploads/assignments/student/` - Student submissions  

### **File Support:**
- **Types:** PDF, Word, PowerPoint, Text, Images
- **Size Limit:** 10MB per file
- **Multiple Files:** Supported
- **Download:** Direct URL access via `/uploads/...`

## 🔄 **REAL-TIME FEATURES**

### **Socket.IO Events:**
- `assignmentPublished` - When teacher publishes assignment
- `assignmentSubmitted` - When student submits work  
- `assignmentGraded` - When teacher grades submission
- `revisionRequested` - When teacher requests revision

## 🎨 **USER INTERFACE**

### **Teacher Interface Features:**
- **Tabbed Interface:** All Assignments | Create New | Grading Queue
- **Assignment Cards** with submission statistics  
- **File Upload** with drag-and-drop support
- **Grading Interface** with feedback forms
- **Student Selection** from assigned students list
- **Real-time Updates** and notifications

### **Student Interface Features:**  
- **Filtered Views:** All | Pending | Submitted | Graded | Revision Required
- **Assignment Cards** with status indicators
- **Submission Interface** with text editor and file upload
- **Grade Display** with teacher feedback
- **Download Links** for assignment files
- **Status Tracking** and history view

## 🧪 **TESTING WORKFLOW**

### **Complete Teacher → Student Flow:**

1. **Teacher Creates Assignment:**
   - Login to teacher portal
   - Click "Assignments" → "Create New" tab
   - Fill assignment details and attach files
   - Select students to assign
   - Click "Create Assignment"

2. **Teacher Publishes Assignment:**
   - Go to "All Assignments" tab
   - Find the assignment
   - Click "Publish" button

3. **Student Receives Assignment:**
   - Login to student portal  
   - Click "Assignments" card
   - See new assignment in "Pending" tab
   - Click "View Details" to see requirements

4. **Student Submits Work:**
   - Click "Submit" button
   - Enter response text and/or upload files
   - Click "Submit Assignment"

5. **Teacher Reviews & Grades:**
   - Go to "Grading Queue" or "View Submissions"
   - Click "Grade" for the submission
   - Enter grade and feedback
   - Click "Submit Grade"

6. **Student Sees Results:**
   - Assignment moves to "Graded" tab
   - Grade and feedback are visible
   - Can download submission files

## 🎯 **SYSTEM IS READY FOR PRODUCTION USE!**

The assignment system is completely functional and integrated. Teachers can create assignments with file attachments, students can submit their work, and the full grading workflow is operational with real-time updates throughout the process.

---
**🚀 Platform Status: FULLY OPERATIONAL**
**📚 Assignment System: READY FOR USE**
**🔄 Real-time Features: ACTIVE**
**📁 File System: WORKING**
**🗄️ Database: CONNECTED**