# ✅ Enhanced TAT Alerts Display - Complete Guide

## 🎯 What's Been Enhanced

TAT alerts now display **detailed time tracking information** inline with each approver, making it crystal clear what's happening!

---

## 📊 Enhanced Alert Display

### **What Shows Now:**

```
┌──────────────────────────────────────────────────────┐
│ ⏳ Reminder 1 - 50% TAT Threshold      [WARNING]     │
│                                                      │
│ 50% of SLA breach reminder have been sent           │
│                                                      │
│ ┌──────────────┬──────────────┐                    │
│ │ Allocated:   │ Elapsed:     │                    │
│ │ 12h          │ 6.0h         │                    │
│ ├──────────────┼──────────────┤                    │
│ │ Remaining:   │ Due by:      │                    │
│ │ 6.0h         │ Oct 7, 2024  │                    │
│ └──────────────┴──────────────┘                    │
│                                                      │
│ Reminder sent by system automatically  [TEST MODE]  │
│ Sent at: Oct 6 at 2:30 PM                          │
│ Note: Test mode active (1 hour = 1 minute)         │
└──────────────────────────────────────────────────────┘
```

---

## 🔑 Key Information Displayed

### **For Each Alert:**

| Field | Description | Example |
|-------|-------------|---------|
| **Reminder #** | Sequential number | "Reminder 1" |
| **Threshold** | Percentage reached | "50% TAT Threshold" |
| **Status Badge** | Warning or Breach | `WARNING` / `BREACHED` |
| **Allocated** | Total TAT hours | "12h" |
| **Elapsed** | Hours used when alert sent | "6.0h" |
| **Remaining** | Hours left when alert sent | "6.0h" |
| **Due by** | Expected completion date | "Oct 7, 2024" |
| **Sent at** | When reminder was sent | "Oct 6 at 2:30 PM" |
| **Test Mode** | If in test mode | Purple badge + note |

---

## 🎨 Color Coding

### **50% Alert (⏳):**
- Background: `bg-yellow-50`
- Border: `border-yellow-200`
- Badge: `bg-amber-100 text-amber-800`
- Icon: ⏳

### **75% Alert (⚠️):**
- Background: `bg-orange-50`
- Border: `border-orange-200`
- Badge: `bg-amber-100 text-amber-800`
- Icon: ⚠️

### **100% Breach (⏰):**
- Background: `bg-red-50`
- Border: `border-red-200`
- Badge: `bg-red-100 text-red-800`
- Icon: ⏰
- Text: Shows "BREACHED" instead of "WARNING"

---

## 🧪 Test Mode vs Production Mode

### **Test Mode (TAT_TEST_MODE=true):**

**Purpose**: Fast testing during development

**Behavior:**
- ✅ 1 hour = 1 minute
- ✅ 6-hour TAT = 6 minutes
- ✅ Purple "TEST MODE" badge shown
- ✅ Note: "Test mode active (1 hour = 1 minute)"
- ✅ All times are in working time (no weekend skip)

**Example Alert (Test Mode):**
```
⏳ Reminder 1 - 50% TAT Threshold      [WARNING] [TEST MODE]

Allocated: 6h | Elapsed: 3.0h
Remaining: 3.0h | Due by: Today 2:06 PM

Note: Test mode active (1 hour = 1 minute)
Sent at: Today at 2:03 PM
```

**Timeline:**
- Submit at 2:00 PM
- 50% alert at 2:03 PM (3 minutes)
- 75% alert at 2:04:30 PM (4.5 minutes)
- 100% breach at 2:06 PM (6 minutes)

---

### **Production Mode (TAT_TEST_MODE=false):**

**Purpose**: Real-world usage

**Behavior:**
- ✅ 1 hour = 1 hour (real time)
- ✅ 48-hour TAT = 48 hours
- ✅ No "TEST MODE" badge
- ✅ No test mode note
- ✅ Respects working hours (Mon-Fri, 9 AM-6 PM)
- ✅ Skips weekends

**Example Alert (Production Mode):**
```
⏳ Reminder 1 - 50% TAT Threshold      [WARNING]

Allocated: 48h | Elapsed: 24.0h
Remaining: 24.0h | Due by: Oct 8, 2024

Reminder sent by system automatically
Sent at: Oct 6 at 10:00 AM
```

**Timeline:**
- Submit Monday 10:00 AM
- 50% alert Tuesday 10:00 AM (24 hours)
- 75% alert Wednesday 10:00 AM (36 hours)
- 100% breach Thursday 10:00 AM (48 hours)

---

## 📡 New API Endpoints

### **1. Get TAT Alerts for Request**
```
GET /api/tat/alerts/request/:requestId
```

**Response:**
```json
{
  "success": true,
  "data": [
    {
      "alertId": "...",
      "alertType": "TAT_50",
      "thresholdPercentage": 50,
      "tatHoursAllocated": 12,
      "tatHoursElapsed": 6.0,
      "tatHoursRemaining": 6.0,
      "alertSentAt": "2024-10-06T14:30:00Z",
      "level": {
        "levelNumber": 2,
        "approverName": "Lisa Wong",
        "status": "PENDING"
      }
    }
  ]
}
```

### **2. Get TAT Compliance Summary**
```
GET /api/tat/compliance/summary?startDate=2024-10-01&endDate=2024-10-31
```

**Response:**
```json
{
  "success": true,
  "data": {
    "total_alerts": 150,
    "alerts_50": 50,
    "alerts_75": 45,
    "breaches": 25,
    "completed_on_time": 35,
    "completed_late": 15,
    "compliance_percentage": 70.00
  }
}
```

### **3. Get TAT Breach Report**
```
GET /api/tat/breaches
```

### **4. Get Approver Performance**
```
GET /api/tat/performance/:approverId
```

---

## 🔍 Database Fields Available

### **In `tat_alerts` Table:**

| Field | Type | Use In UI |
|-------|------|-----------|
| `alert_type` | ENUM | Determine icon (⏳/⚠️/⏰) |
| `threshold_percentage` | INT | Show "50%", "75%", "100%" |
| `tat_hours_allocated` | DECIMAL | Display "Allocated: Xh" |
| `tat_hours_elapsed` | DECIMAL | Display "Elapsed: Xh" |
| `tat_hours_remaining` | DECIMAL | Display "Remaining: Xh" (red if < 2h) |
| `level_start_time` | TIMESTAMP | Calculate time since start |
| `alert_sent_at` | TIMESTAMP | Show "Sent at: ..." |
| `expected_completion_time` | TIMESTAMP | Show "Due by: ..." |
| `alert_message` | TEXT | Full notification message |
| `is_breached` | BOOLEAN | Show "BREACHED" badge |
| `metadata` | JSONB | Test mode indicator, priority, etc. |
| `was_completed_on_time` | BOOLEAN | Show compliance status |
| `completion_time` | TIMESTAMP | Show actual completion |

---

## 💡 Production Recommendation

### **For Development/Testing:**
```bash
# .env
TAT_TEST_MODE=true
WORK_START_HOUR=9
WORK_END_HOUR=18
```

**Benefits:**
- ✅ Fast feedback (minutes instead of hours/days)
- ✅ Easy to test multiple scenarios
- ✅ Clear test mode indicators prevent confusion

### **For Production:**
```bash
# .env
TAT_TEST_MODE=false
WORK_START_HOUR=9
WORK_END_HOUR=18
```

**Benefits:**
- ✅ Real-world timing
- ✅ Accurate TAT tracking
- ✅ Meaningful metrics

---

## 📋 Complete Alert Card Template

### **Full Display Structure:**

```tsx
<div className="bg-yellow-50 border-yellow-200 p-3 rounded-lg">
  {/* Header */}
  <div className="flex items-center justify-between">
    <span>⏳ Reminder 1 - 50% TAT Threshold</span>
    <Badge>WARNING</Badge>
    {testMode && <Badge>TEST MODE</Badge>}
  </div>
  
  {/* Main Message */}
  <p>50% of SLA breach reminder have been sent</p>
  
  {/* Time Grid */}
  <div className="grid grid-cols-2 gap-2">
    <div>Allocated: 12h</div>
    <div>Elapsed: 6.0h</div>
    <div>Remaining: 6.0h</div>
    <div>Due by: Oct 7</div>
  </div>
  
  {/* Footer */}
  <div className="border-t pt-2">
    <p>Reminder sent by system automatically</p>
    <p>Sent at: Oct 6 at 2:30 PM</p>
    {testMode && <p>Note: Test mode (1h = 1min)</p>}
  </div>
</div>
```

---

## 🎯 Key Benefits of Enhanced Display

### **1. Full Transparency**
Users see exactly:
- How much time was allocated
- How much was used when alert fired
- How much was remaining
- When it's due

### **2. Context Awareness**
- Test mode clearly indicated
- Color-coded by severity
- Badge shows warning vs breach

### **3. Actionable Information**
- "Remaining: 2.5h" → Approver knows they have 2.5h left
- "Due by: Oct 7 at 6 PM" → Clear deadline
- "Elapsed: 6h" → Understand how long it's been

### **4. Confusion Prevention**
- Test mode badge prevents misunderstanding
- Note explains "1 hour = 1 minute" in test mode
- Clear visual distinction from production

---

## 🧪 Testing Workflow

### **Step 1: Enable Detailed Logging**

In `Re_Backend/.env`:
```bash
TAT_TEST_MODE=true
LOG_LEVEL=debug
```

### **Step 2: Create Test Request**

- TAT: 6 hours
- Priority: Standard or Express
- Submit request

### **Step 3: Watch Alerts Populate**

**At 3 minutes (50%):**
```
⏳ Reminder 1 - 50% TAT Threshold [WARNING] [TEST MODE]

Allocated: 6h  | Elapsed: 3.0h
Remaining: 3.0h | Due by: Today 2:06 PM

Note: Test mode active (1 hour = 1 minute)
```

**At 4.5 minutes (75%):**
```
⚠️ Reminder 2 - 75% TAT Threshold [WARNING] [TEST MODE]

Allocated: 6h  | Elapsed: 4.5h
Remaining: 1.5h | Due by: Today 2:06 PM

Note: Test mode active (1 hour = 1 minute)
```

**At 6 minutes (100%):**
```
⏰ Reminder 3 - 100% TAT Threshold [BREACHED] [TEST MODE]

Allocated: 6h  | Elapsed: 6.0h
Remaining: 0.0h | Due by: Today 2:06 PM (OVERDUE)

Note: Test mode active (1 hour = 1 minute)
```

---

## 📊 KPI Queries Using Alert Data

### **Average Response Time After Each Alert Type:**

```sql
SELECT 
  alert_type,
  ROUND(AVG(tat_hours_elapsed), 2) as avg_elapsed,
  ROUND(AVG(tat_hours_remaining), 2) as avg_remaining,
  COUNT(*) as alert_count,
  COUNT(CASE WHEN was_completed_on_time = true THEN 1 END) as completed_on_time
FROM tat_alerts
GROUP BY alert_type
ORDER BY threshold_percentage;
```

### **Approvers Who Frequently Breach:**

```sql
SELECT 
  u.display_name,
  u.department,
  COUNT(CASE WHEN ta.is_breached = true THEN 1 END) as breach_count,
  AVG(ta.tat_hours_elapsed) as avg_time_taken,
  COUNT(DISTINCT ta.level_id) as total_approvals
FROM tat_alerts ta
JOIN users u ON ta.approver_id = u.user_id
WHERE ta.is_breached = true
GROUP BY u.user_id, u.display_name, u.department
ORDER BY breach_count DESC
LIMIT 10;
```

### **Time-to-Action After Alert:**

```sql
SELECT 
  alert_type,
  threshold_percentage,
  ROUND(AVG(
    EXTRACT(EPOCH FROM (completion_time - alert_sent_at)) / 3600
  ), 2) as avg_hours_to_respond_after_alert
FROM tat_alerts
WHERE completion_time IS NOT NULL
GROUP BY alert_type, threshold_percentage
ORDER BY threshold_percentage;
```

---

## 🔄 Alert Lifecycle

### **1. Alert Created (When Threshold Reached)**
```typescript
{
  alertType: 'TAT_50',
  thresholdPercentage: 50,
  tatHoursAllocated: 12,
  tatHoursElapsed: 6.0,
  tatHoursRemaining: 6.0,
  alertSentAt: '2024-10-06T14:30:00Z',
  expectedCompletionTime: '2024-10-06T18:00:00Z',
  isBreached: false,
  wasCompletedOnTime: null, // Not completed yet
  metadata: { testMode: true, ... }
}
```

### **2. Approver Takes Action**
```typescript
// Updated when level is approved/rejected
{
  ...existingFields,
  wasCompletedOnTime: true,  // or false
  completionTime: '2024-10-06T16:00:00Z'
}
```

### **3. Displayed in UI**
```tsx
// Shows all historical alerts for that level
// Color-coded by threshold
// Shows completion status if completed
```

---

## 🎓 Understanding the Data

### **Allocated Hours (tat_hours_allocated)**
Total TAT time given to approver for this level
```
Example: 12 hours
Meaning: Approver has 12 hours to approve/reject
```

### **Elapsed Hours (tat_hours_elapsed)**
Time used when the alert was sent
```
Example: 6.0 hours (at 50% alert)
Meaning: 6 hours have passed since level started
```

### **Remaining Hours (tat_hours_remaining)**
Time left when the alert was sent
```
Example: 6.0 hours (at 50% alert)
Meaning: 6 hours remaining before TAT breach
Note: Turns red if < 2 hours
```

### **Expected Completion Time**
When the level should be completed
```
Example: Oct 6 at 6:00 PM
Meaning: Deadline for this approval level
```

---

## ⚙️ Configuration Options

### **Disable Test Mode for Production:**

Edit `.env`:
```bash
# Production settings
TAT_TEST_MODE=false
WORK_START_HOUR=9
WORK_END_HOUR=18
```

### **Adjust Working Hours:**

```bash
# Custom working hours (e.g., 8 AM - 5 PM)
WORK_START_HOUR=8
WORK_END_HOUR=17
```

### **Redis Configuration:**

```bash
# Upstash (recommended)
REDIS_URL=rediss://default:PASSWORD@host.upstash.io:6379

# Local Redis
REDIS_URL=redis://localhost:6379

# Production Redis with auth
REDIS_URL=redis://username:password@prod-redis.com:6379
```

---

## 📱 Mobile Responsive

The alert cards are responsive:
- ✅ 2-column grid on desktop
- ✅ Single column on mobile
- ✅ All information remains visible
- ✅ Touch-friendly spacing

---

## 🚀 API Endpoints Available

### **Get Alerts for Request:**
```bash
GET /api/tat/alerts/request/:requestId
```

### **Get Alerts for Level:**
```bash
GET /api/tat/alerts/level/:levelId
```

### **Get Compliance Summary:**
```bash
GET /api/tat/compliance/summary
GET /api/tat/compliance/summary?startDate=2024-10-01&endDate=2024-10-31
```

### **Get Breach Report:**
```bash
GET /api/tat/breaches
```

### **Get Approver Performance:**
```bash
GET /api/tat/performance/:approverId
```

---

## ✅ Benefits Summary

### **For Users:**
1. **Clear Visibility** - See exact time tracking
2. **No Confusion** - Test mode clearly labeled
3. **Actionable Data** - Know exactly how much time left
4. **Historical Record** - All alerts preserved

### **For Management:**
1. **KPI Ready** - All data for reporting
2. **Compliance Tracking** - On-time vs late completion
3. **Performance Analysis** - Response time after alerts
4. **Trend Analysis** - Breach patterns

### **For System:**
1. **Audit Trail** - Every alert logged
2. **Scalable** - Queue-based architecture
3. **Reliable** - Automatic retries
4. **Maintainable** - Clear configuration

---

## 🎯 Quick Switch Between Modes

### **Development (Fast Testing):**
```bash
# .env
TAT_TEST_MODE=true
```
Restart backend → Alerts fire in minutes

### **Staging (Semi-Real):**
```bash
# .env
TAT_TEST_MODE=false
# But use shorter TATs (2-4 hours instead of 48 hours)
```
Restart backend → Alerts fire in hours

### **Production (Real):**
```bash
# .env
TAT_TEST_MODE=false
# Use actual TATs (24-48 hours)
```
Restart backend → Alerts fire in days

---

## 📊 What You See in Workflow Tab

For each approval level, you'll see:

```
┌────────────────────────────────────────────┐
│ Step 2: Lisa Wong (Finance Manager)       │
│ Status: pending                            │
│ TAT: 12 hours                              │
│ Elapsed: 8h                                │
│                                            │
│ [50% Alert Card with full details]        │
│ [75% Alert Card with full details]        │
│                                            │
│ Comment: (if any)                          │
└────────────────────────────────────────────┘
```

**Clear, informative, and actionable!**

---

## 🎉 Status: READY!

✅ **Enhanced display** with all timing details  
✅ **Test mode indicator** to prevent confusion  
✅ **Color-coded** by severity  
✅ **Responsive** design  
✅ **API endpoints** for custom queries  
✅ **KPI-ready** data structure  

---

**Just setup Upstash Redis and start testing!**

See: `START_HERE.md` for 2-minute Redis setup

---

**Last Updated**: November 4, 2025  
**Team**: Royal Enfield Workflow