# ❓ Why Are TAT Alerts Not Showing?

## 🎯 Follow These Steps IN ORDER

### ✅ Step 1: Is Redis Connected?

**Check your backend console:**

```
Look for one of these messages:
```

**✅ GOOD (Redis is working):**
```
✅ [TAT Queue] Connected to Redis
✅ [TAT Worker] Worker is ready and listening
```

**❌ BAD (Redis NOT working):**
```
⚠️ [TAT Worker] Redis connection failed
⚠️ [TAT Queue] Redis connection failed after 3 attempts
```

**If you see the BAD message:**

→ **STOP HERE!** TAT alerts will NOT work without Redis!

→ **Setup Upstash Redis NOW:**
   1. Go to: https://console.upstash.com/
   2. Sign up (free)
   3. Create database
   4. Copy Redis URL
   5. Add to `Re_Backend/.env`:
      ```bash
      REDIS_URL=rediss://default:PASSWORD@host.upstash.io:6379
      TAT_TEST_MODE=true
      ```
   6. Restart backend
   7. Verify you see "Connected to Redis"

---

### ✅ Step 2: Have You Submitted a Request?

**TAT monitoring starts ONLY when:**
- ✅ Request is **SUBMITTED** (not just created/saved)
- ✅ Status changes from DRAFT → PENDING

**To verify:**
```sql
SELECT 
  request_number,
  status,
  submission_date
FROM workflow_requests
WHERE request_number = 'YOUR_REQUEST_NUMBER';
```

**Check:**
- `status` should be `PENDING`, `IN_PROGRESS`, or later
- `submission_date` should NOT be NULL

**If status is DRAFT:**
→ Click "Submit" button on the request
→ TAT monitoring will start

---

### ✅ Step 3: Has Enough Time Passed?

**In TEST MODE (TAT_TEST_MODE=true):**
- 1 hour = 1 minute
- For 6-hour TAT:
  - 50% alert at: **3 minutes**
  - 75% alert at: **4.5 minutes**
  - 100% breach at: **6 minutes**

**In PRODUCTION MODE:**
- 1 hour = 1 hour (real time)
- For 24-hour TAT:
  - 50% alert at: **12 hours**
  - 75% alert at: **18 hours**
  - 100% breach at: **24 hours**

**Check when request was submitted:**
```sql
SELECT 
  request_number,
  submission_date,
  NOW() - submission_date as time_since_submission
FROM workflow_requests
WHERE request_number = 'YOUR_REQUEST_NUMBER';
```

---

### ✅ Step 4: Are Alerts in the Database?

**Run this SQL:**
```sql
-- Check if table exists
SELECT COUNT(*) FROM tat_alerts;

-- If table exists, check for your request
SELECT 
  ta.threshold_percentage,
  ta.alert_sent_at,
  ta.alert_message,
  ta.metadata
FROM tat_alerts ta
JOIN workflow_requests w ON ta.request_id = w.request_id
WHERE w.request_number = 'YOUR_REQUEST_NUMBER'
ORDER BY ta.alert_sent_at;
```

**Expected Result:**
- **0 rows** → No alerts sent yet (wait longer OR Redis not connected)
- **1+ rows** → Alerts exist! (Go to Step 5)

**If table doesn't exist:**
```bash
cd Re_Backend
npm run migrate
```

---

### ✅ Step 5: Is API Returning tatAlerts?

**Test the API directly:**

**Method 1: Use Debug Endpoint**
```bash
curl http://localhost:5000/api/debug/workflow-details/YOUR_REQUEST_NUMBER
```

**Look for:**
```json
{
  "structure": {
    "hasTatAlerts": true,  ← Should be true
    "tatAlertsCount": 2    ← Should be > 0
  },
  "tatAlerts": [...]       ← Should have data
}
```

**Method 2: Check Network Tab in Browser**

1. Open Request Detail page
2. Open DevTools (F12) → Network tab
3. Find the API call to `/workflows/{requestNumber}/details`
4. Click on it
5. Check Response tab
6. Look for `tatAlerts` array

---

### ✅ Step 6: Is Frontend Receiving tatAlerts?

**Open Browser Console (F12 → Console)**

**When you open Request Detail, you should see:**
```javascript
[RequestDetail] TAT Alerts received from API: 2 [Array(2)]
```

**If you see:**
```javascript
[RequestDetail] TAT Alerts received from API: 0 []
```

→ API is NOT returning alerts (go back to Step 4)

---

### ✅ Step 7: Are Alerts Being Displayed?

**In Request Detail:**
1. Click **"Workflow" tab**
2. Scroll to the approver card
3. Look under the approver's comment section

**You should see yellow/orange/red boxes with:**
```
⏳ Reminder 1 - 50% TAT Threshold
```

**If you DON'T see them:**
→ Check browser console for JavaScript errors

---

## 🔍 Quick Diagnostic

**Run ALL of these and share the results:**

### 1. Backend Status:
```bash
curl http://localhost:5000/api/debug/tat-status
```

### 2. Database Query:
```sql
SELECT COUNT(*) as total FROM tat_alerts;
```

### 3. Browser Console:
```javascript
// Open Request Detail
// Check console for:
[RequestDetail] TAT Alerts received from API: X [...]
```

### 4. Network Response:
```
DevTools → Network → workflow details call → Response tab
Look for "tatAlerts" field
```

---

## 🎯 Most Likely Issues (In Order)

### 1. Redis Not Connected (90% of cases)
**Symptom**: No "Connected to Redis" in logs
**Fix**: Setup Upstash, add REDIS_URL, restart

### 2. Request Not Submitted (5%)
**Symptom**: Request status is DRAFT
**Fix**: Click Submit button

### 3. Not Enough Time Passed (3%)
**Symptom**: Submitted < 3 minutes ago (in test mode)
**Fix**: Wait 3 minutes for first alert

### 4. TAT Worker Not Running (1%)
**Symptom**: Redis connected but no "Worker is ready" message
**Fix**: Restart backend server

### 5. Frontend Code Not Applied (1%)
**Symptom**: API returns tatAlerts but UI doesn't show them
**Fix**: Refresh browser, clear cache

---

## 🚨 Emergency Checklist

**Do this RIGHT NOW to verify everything:**

```bash
# 1. Check backend console for Redis connection
# Look for: ✅ [TAT Queue] Connected to Redis

# 2. If NOT connected, setup Upstash:
# https://console.upstash.com/

# 3. Add to .env:
# REDIS_URL=rediss://...
# TAT_TEST_MODE=true

# 4. Restart backend
npm run dev

# 5. Check you see "Connected to Redis"

# 6. Create NEW request with 6-hour TAT

# 7. SUBMIT the request

# 8. Wait 3 minutes

# 9. Open browser console (F12)

# 10. Open Request Detail page

# 11. Check console log for:
# [RequestDetail] TAT Alerts received from API: X [...]

# 12. Go to Workflow tab

# 13. Alerts should appear!
```

---

## 📞 Share These for Help

If still not working, share:

1. **Backend console output** (first 50 lines after starting)
2. **Result of**: `curl http://localhost:5000/api/debug/tat-status`
3. **SQL result**: `SELECT COUNT(*) FROM tat_alerts;`
4. **Browser console** when opening Request Detail
5. **Request number** you're testing with
6. **How long ago** was the request submitted?

---

## ✅ Working Example

**When everything works, you'll see:**

**Backend Console:**
```
✅ [TAT Queue] Connected to Redis
✅ [TAT Worker] Worker is ready
[TAT Scheduler] ✅ TAT jobs scheduled for request REQ-2025-001
```

**After 3 minutes (test mode):**
```
[TAT Processor] Processing tat50 for request REQ-2025-001
[TAT Processor] TAT alert record created for tat50
[TAT Processor] tat50 notification sent
```

**Browser Console:**
```javascript
[RequestDetail] TAT Alerts received from API: 1 [
  {
    alertType: "TAT_50",
    thresholdPercentage: 50,
    alertSentAt: "2025-11-04T...",
    ...
  }
]
```

**UI Display:**
```
⏳ Reminder 1 - 50% TAT Threshold
50% of SLA breach reminder have been sent
...
```

---

**Most likely you just need to setup Redis! See `START_HERE.md`**

---

**Last Updated**: November 4, 2025