# 🔔 Notification System Guide

**Version:** 4.0 (Real-Time System)  
**Last Updated:** December 11, 2025  
**Branch:** feature-notification-log-11122025

---

## 🆕 Version 4 - Real-Time Notification System

**New Features (v4 - 2025-12-06):**
- ✅ **Real-time notifications:** Runs every 5 minutes (maximum 5 minutes delay)
- ✅ **Duplicate prevention:** Same issue won't trigger duplicate notifications
- ✅ **Incremental checking:** First run scans all records, subsequent runs check only new records
- ✅ **90%+ performance improvement:** Only new records are checked
- ✅ **Synchronous execution:** Compatible with cronjob

**How It Works:**
1. **First run:** Scans entire table, collects IDs of all problematic records
2. **Subsequent runs:** Checks only new records created after last notification
3. **5-minute check:** If run again within 5 minutes, it's skipped (performance optimization)
4. **Duplicate check:** If notification exists for same issue and no new records, it's skipped

**Helper Functions:** `app/Functions/notification-state-helper.php`
- `getLastNotificationTime()` - Get last notification timestamp
- `shouldCheckNotification()` - Check if 5 minutes have passed
- `getLastCheckTimestamp()` - Get last check timestamp (null = first run)
- `isNotificationDuplicate()` - Check for duplicate notifications
- `getAlreadyNotifiedIds()` - Get already notified record IDs

**Performance:**
| Scenario | Duration | Description |
|----------|----------|-------------|
| First run | 2-10 seconds | Entire table scanned |
| Within 5 min | < 0.1 seconds | Skip (no query) |
| After 5 min (no new) | 0.1-0.5 seconds | Only new records checked |
| New records exist | 0.1-1 seconds | Only new records checked |

---

## 📋 Quick Reference

| # | Notification Type | Trigger | Schedule | Permission Code |
|---|-------------------|---------|----------|-----------------|
| 1 | Deleted Joints Missing Comments | Scheduled | Every 5 min | `notification_deleted_joint_missing_comment` |
| 2 | Repair Logs Missing New Joint Number | Scheduled | Every 5 min | `notification_repair_log_missing_new_joint` |
| 3 | Daily Repair Rate Exceeds 12% | Scheduled | Every 5 min | `notification_daily_repair_rate_high` |
| 4 | Line List Missing Required Data | Scheduled | Every 5 min | `notification_line_list_missing_data` |
| 5 | WPS PDF Document Missing | Scheduled | Every 5 min | `notification_wps_pdf_missing` |
| 6 | NAKS Welder Certificate Missing | Scheduled | Every 5 min | `notification_naks_welder_cert_missing` |
| 7 | Welding Equipment PDF Missing | Scheduled | Every 5 min | `notification_welding_equipment_pdf_missing` |
| 8 | WPQR PDF Missing | Scheduled | Every 5 min | `notification_wpq_followup_pdf_missing` |
| 9 | Certificate Number 1-2 Missing | Scheduled | Every 5 min | `notification_weldlog_certificate_missing` |
| 10 | Incoming Control Certificate Missing | Scheduled | Every 5 min | `notification_incoming_control_cert_missing` |
| 11 | Welder ID Card Created | Event (Insert) | Immediate | `notification_welder_id_card_created` |
| 12 | Document Revision Changed | Event (Update) | Immediate | `notification_document_revision_changed` |
| 13 | NDE Matrix Not in Weldlog | Scheduled | Every 5 min | `notification_nde_matrix_not_in_weldlog` |
| 14 | Weldlog Not in Line List | Scheduled | Every 5 min | `notification_weldlog_not_in_line_list` |
| 15 | Line List NDT Missing | Scheduled | Every 5 min | `notification_line_list_ndt_missing` |
| 16 | NDT PMI Test Missing | Scheduled | Every 5 min | `notification_ndt_pmi_missing` |
| 17 | NDT FN Test Missing | Scheduled | Every 5 min | `notification_ndt_fn_missing` |
| 18 | Unnecessary NDT Requests | Scheduled | Every 5 min | `notification_manage_ndt_unnecessary` |
| 19 | Support Log Missing in Weldlog | Scheduled | Every 5 min | `notification_support_log_missing_in_weldlog` |
| 20 | Paint System Missing | Scheduled | Every 5 min | `notification_paint_system_incomplete` |
| 21 | Overall Repair Rate Exceeds 5% | Scheduled | Every 5 min | `notification_overall_repair_rate_high` |
| 22 | Weldlog Test Date Before Welding Date | Scheduled | Every 5 min | `notification_weldlog_test_date_invalid` |
| 23 | NDE Matrix Empty Row - NDT Assignment Required | Scheduled | Every 5 min | `notification_nde_matrix_empty_row` |
| 24 | NDT Request Overdue (10+ Days) | Scheduled | Every 5 min | `notification_ndt_request_overdue` |
| 25 | VT Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_vt` |
| 26 | RT Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_rt` |
| 27 | UT Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_ut` |
| 28 | PT Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_pt` |
| 29 | MT Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_mt` |
| 30 | HT Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_ht` |
| 31 | PMI Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_pmi` |
| 32 | PWHT Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_pwht` |
| 33 | Ferrite Test - PDF Report Missing | Scheduled | Every 5 min | `notification_test_log_pdf_missing_ferrite` |

---

## 🚀 Getting Started

### Prerequisites
1. Laravel Scheduler must be running (cron job)
2. User roles must be assigned in Settings
3. Helper functions loaded (`app/Functions/notification-state-helper.php`)

### System Status
- ✅ Real-time notifications (every 5 minutes)
- ✅ Duplicate prevention active
- ✅ Incremental checking (only new records)
- ✅ First run scans all records, subsequent runs check only new data

### Testing Notifications

#### Step 1: Configure Permissions
```
Navigate to: Settings → Specific Permissions → Notification Settings
Assign your role (e.g., QC Manager) to the notification types you want to receive
```

#### Step 2: Trigger Manually (for testing)
```bash
# Test a specific notification
php artisan notifications:check-deleted-joints

# Test all NDT reminders
php artisan notifications:check-ndt

# Test repair rate check
php artisan notifications:check-daily-repair-rate
```

#### Step 3: Check Results
- Click the **bell icon** (🔔) in the header
- Or visit: `/admin/types/my-notifications`

---

## 📦 Notification Types (Detailed)

### 1️⃣ Deleted Joints Missing Comments

**When:** Joints are deleted without explanation  
**Why:** Quality tracking requires deletion reasons  
**Command:** `notifications:check-deleted-joints`

**What to check:**
```sql
SELECT * FROM deleted_joints 
WHERE (comment IS NULL OR comment = '')
LIMIT 50
```

**Message Example:**
```
Deleted joint W-123 (Spool: SP-001, ISO: ISO-456) has no comment. 
Please add deletion reason.
```

**Fix:** Add a comment in the Deleted Joints page explaining why it was removed.

---

### 2️⃣ Repair Logs Missing New Joint Number

**When:** Repairs completed but new joint number not assigned  
**Why:** Tracking requires new joint identification after repair  
**Command:** `notifications:check-repair-log-new-joint`

**What to check:**
```sql
SELECT * FROM repair_logs 
WHERE (new_joint_no IS NULL OR new_joint_no = '')
LIMIT 50
```

**Message Example:**
```
Repair log for joint W-OLD (Spool: SP-002, ISO: ISO-789) has no new joint number assigned.
```

**Fix:** Assign the new joint number in Repair Log module.

---

### 3️⃣ Daily Repair Rate Exceeds 12%

**When:** Daily repair rate is too high (quality issue)  
**Why:** Alert QC teams when repair rate exceeds acceptable threshold  
**Command:** `notifications:check-daily-repair-rate`

**Calculation:**
```
Repair Rate = (Today's Repairs / Today's Welds) × 100
Alert if > 12%
```

**Message Example:**
```
Daily repair rate is 15.2% (19 repairs out of 125 welds). 
Please investigate quality issues.
```

**Fix:** Investigate root cause - check welder qualifications, materials, procedures.

---

### 4️⃣ Line List Missing Required Data

**When:** Line List entries missing critical fields  
**Why:** Incomplete line data causes downstream issues  
**Command:** `notifications:check-line-list-missing-data`

**Required Fields:**
- Category/Group
- NDT Ratio
- Pressure
- Temperature
- Test Type
- Test Media

**Message Example:**
```
Line ABC-123 (used in weld logs) is missing required data: NDT Ratio, Test Type
```

**Fix:** Complete the missing fields in Line List module.

---

### 5️⃣-8️⃣ PDF Documents Missing

**When:** Required PDFs not uploaded  
**Why:** Documentation compliance  
**Command:** `notifications:check-pdf-documents`

**Checks:**
- **WPS:** `w_p_s` table → `download` field
- **NAKS Welder:** `naks_welders` table → `certificate` field
- **Welding Equipment:** `welding_equipment` table → `download` field
- **WPQ Follow-Up:** `welder_tests` table → `download` field

**Message Example:**
```
WPS WPS-001 is missing PDF document. Please upload procedure file.
```

**Fix:** Upload the missing PDF in respective module.

---

### 9️⃣ Certificate Number 1-2 Missing

**When:** Welding completed but certificates not recorded  
**Why:** Certificate tracking for quality assurance  
**Command:** `notifications:check-weldlog-certificate`

**Condition:**
```
welding_date is filled
AND (certificate_number_of_1 is empty OR certificate_number_of_2 is empty)
```

**Message Example:**
```
Weldlog joint W-456 is missing: Certificate No 1, Certificate No 2 
(welded on 2025-12-06)
```

**Fix:** Add certificate numbers in Weldlog module.

---

### 🔟 Incoming Control Certificate Missing

**When:** Materials received but certificates not logged  
**Why:** Material traceability requirement  
**Command:** `notifications:check-incoming-control-certificate`

**Condition:**
```
Record exists (created_at is not null)
AND certificate_no is empty
```

**Message Example:**
```
Incoming Control record MAT-789 is missing Certificate No
```

**Fix:** Add certificate number in Incoming Control module.

---

### 1️⃣1️⃣ Welder ID Card Created (Event-Based)

**When:** New welder added to NAKS Welder database  
**Why:** Informational - notify teams about new qualified welder  
**Trigger:** Automatic on insert to `naks_welders` table

**Message Example:**
```
New Welder ID Card created for John Smith (Welder ID: W-1234)
```

**Action:** Review the Welder ID Card page to verify information.

---

### 1️⃣2️⃣ Document Revision Changed (Event-Based)

**When:** REV number is updated in Document Revision module  
**Why:** PDF files must be updated when revision changes  
**Trigger:** Automatic on update to `document_revisions` table

**Condition:**
```
revision_no field changed (e.g., "0" → "1")
AND oldValue is not empty (not initial creation)
```

**Message Example:**
```
Document Revision REV changed from 0 to 1 for Drawing ABC-123. 
Please update PDF files.
```

**Link:** `/admin/types/document-revision?id={id}`

**How to Test:**
1. Go to Settings → Specific Permissions → Notification Settings
2. Assign roles to "Document Revision Changed"
3. Open Document Revision module
4. Change REV number of an existing record (0 → 1)
5. Check notifications immediately after update

**Action:** 
- Update `pdf_engineering` file with new revision
- Update `pdf_spool_iso` file if applicable
- Ensure all PDF files reflect the new REV number

---

### 1️⃣3️⃣ NDE Matrix Not in Weldlog

**When:** NDE Matrix contains line numbers not found in Weldlog  
**Why:** Data consistency - NDE Matrix should reflect actual welding work  
**Command:** `notifications:check-nde-matrix-discrepancies`

**Check:**
```
NDE Matrix has line number
BUT
Weldlog does NOT have matching line_number
```

**Message Example:**
```
NDE Matrix line "ABC-123" (Project: P001, Joint Type: BW) not found in Weldlog
```

**Link:** `/admin/types/nde-matrix?line={line}`

---

### 1️⃣4️⃣ Weldlog Not in Line List

**When:** Welding performed on lines not defined in Line List  
**Why:** All welded lines must be predefined in Line List  
**Command:** `notifications:check-nde-matrix-discrepancies`

**Check:**
```
Weldlog has line_number (with welding_date filled)
BUT
Line List does NOT have matching line_no
```

**Message Example:**
```
Weldlog line "DEF-456" (Project: P002, ISO: ISO-789) not found in Line List
```

**Link:** `/admin/types/weldlog?line_number={line_number}`

**Action:** Add the line to Line List module with complete specifications.

---

### 1️⃣5️⃣ Line List NDT Missing

**When:** Line List entry lacks NDT ratio but is used in welding  
**Why:** NDT ratio must be defined before welding begins  
**Command:** `notifications:check-nde-matrix-discrepancies`

**Check:**
```
Line List entry exists
AND used in Weldlog (welding_date is not null)
BUT
Line List.ndt is empty or 0
```

**Message Example:**
```
Line List entry "GHI-789" is missing NDT ratio (used in Weldlog)
```

**Link:** `/admin/types/line-list?line_no={line_no}`

**Action:** Update Line List with correct NDT percentage.

---

---

### 1️⃣6️⃣ NDT PMI Test Missing

**When:** SS or CS+SS materials but PMI test request not created  
**Why:** PMI (Positive Material Identification) required for stainless steel materials  
**Command:** `notifications:check-ndt-calculation`

**Condition:**
```
welding_date is filled
AND (Material Grade 1 or 2 = SS (11, 8, 9) OR CS+SS combination)
AND pmi_request_no is empty
```

**Message Example:**
```
Joint W-123 (ISO: ISO-456) has SS material but PMI test request not created
```

**Link:** `/admin/types/weldlog?id={id}`

**Action:** Create PMI test request in Weldlog module.

---

### 1️⃣7️⃣ NDT FN Test Missing

**When:** SS materials but FN (Ferrite) test request not created  
**Why:** Ferrite number testing required for stainless steel welds  
**Command:** `notifications:check-ndt-calculation`

**Condition:**
```
welding_date is filled
AND (Material Grade 1 or 2 = SS (11, 8, 9))
AND ferrite_request_no is empty
```

**Message Example:**
```
Joint W-456 (ISO: ISO-789) has SS material but FN (Ferrite) test request not created
```

**Link:** `/admin/types/weldlog?id={id}`

**Action:** Create FN (Ferrite) test request in Weldlog module.

---

### 1️⃣8️⃣ Manage NDT Unnecessary Request

**When:** Manual NDT request created but NDE Matrix shows 0% ratio  
**Why:** Prevent unnecessary testing costs and time  
**Command:** `notifications:check-manage-ndt-unnecessary`

**Condition:**
```
welding_date is filled
AND test_request_no is filled (RT/UT/PT/MT)
AND (
  NDE Matrix ratio for that test type = 0% OR NULL
  OR NDE Matrix entry doesn't exist for line/joint type
)
```

**Message Example:**
```
Unnecessary RT test request for Joint W-987 (ISO: ISO-901, Line: ABC-123, Request: RT-000244) 
- NDE Matrix ratio is 0%
```

**Link:** `/admin/types/weldlog?id={id}`

**Action:** 
- Review NDE Matrix to verify if test is actually needed
- If ratio should be > 0%, update NDE Matrix
- If test is unnecessary, cancel the request in Manage NDT
- This helps avoid wasting resources on unneeded tests

**Test Types Checked:**
- RT (Radiographic Testing)
- UT (Ultrasonic Testing)
- PT (Penetrant Testing)
- MT (Magnetic Testing)

---

### 1️⃣9️⃣ Support Log Missing in Weldlog

**When:** Support Log entry marked as welded but not found in Weldlog  
**Why:** Ensure all welded supports are properly recorded in Weldlog  
**Command:** `notifications:check-support-log-weldlog`

**Condition:**
```
Support Log weld_or_assembled_date is filled (not NULL, not empty, not 0000-00-00)
AND support_code is not empty
AND support_code NOT found in Weldlog (element_code_1 OR element_code_2)
```

**Message Example:**
```
Support Code FE11-A-1028 (Line: ABC-123, Materials: Ст3пс, Weld Date: 2024-09-11) is welded 
in Support Log but not found in Weldlog (ID Code 1 or ID Code 2). Please add to Weldlog.
```

**Link:** `/admin/types/support?id={id}`

**Action:** 
- Verify if the support was actually welded
- If welded, add the corresponding entry to Weldlog with the Support Code
- If not welded yet, update Support Log status
- This ensures accurate tracking of welded supports

**Fields Checked in Weldlog:**
- `element_code_1` (ID Code 1)
- `element_code_2` (ID Code 2)

---

### 2️⃣0️⃣ Paint System Missing

**When:** Paint System exists but customer-agreed paint values are missing  
**Why:** Complete paint specifications required for Line List entries  
**Command:** `notifications:check-paint-system-values`

**Condition:**
```
Paint System exists for paint_cycle
AND (
  primer_coat_name_1 is empty OR
  brand_name_1 is empty OR
  thickness_1 is 0 or NULL
)
```

**Message Example:**
```
Paint System "А" (used by Lines: DEF-456, GHI-789...) has missing customer-agreed values: 
Primer Coat Name 1, Thickness 1. Please fill in Paint System details.
```

**Link:** `/admin/types/paint-system?id={id}`

**Action:** 
- Fill in the missing paint values in Paint System:
  - Primer Coat Name (Layer 1)
  - Brand Name (Layer 1)
  - Thickness (Layer 1)
- These are customer-agreed values from Line List requirements

**Required Fields (Layer 1):**
- `primer_coat_name_1`
- `brand_name_1`
- `thickness_1`

---

### 2️⃣1️⃣ Overall Repair Rate Exceeds 5%

**When:** Overall repair rate is too high (quality issue)  
**Why:** Alert QC teams when overall repair rate exceeds acceptable threshold  
**Command:** `notifications:check-daily-repair-rate`

**Calculation:**
```
Overall Repair Rate = (Total Repairs / Total Welds) × 100
Alert if > 5%
```

**Message Example:**
```
Overall repair rate is 6.8% (150 repairs out of 2200 welds). 
Please investigate quality issues.
```

**Fix:** Investigate root cause - check welder qualifications, materials, procedures, and overall quality control processes.

---

### 2️⃣2️⃣ Weldlog Test Date Before Welding Date

**When:** Test date is recorded before welding date (logical error)  
**Why:** Tests cannot be performed before welding is completed  
**Command:** `notifications:check-weldlog-test-dates`

**Condition:**
```
welding_date is filled
AND test_date (any test type) < welding_date
```

**Message Example:**
```
Weldlog joint W-789 (ISO: ISO-012) has test date (2025-12-05) before welding date (2025-12-10). 
Please verify dates.
```

**Link:** `/admin/types/weldlog?id={id}`

**Action:** 
- Verify and correct test dates
- Ensure test dates are after welding date
- Update test records with correct dates

---

### 2️⃣3️⃣ NDE Matrix Empty Row - NDT Assignment Required

**When:** NDE Matrix has empty rows without NDT assignments  
**Why:** All NDE Matrix rows must have proper NDT assignments  
**Command:** `notifications:check-nde-matrix-discrepancies`

**Condition:**
```
NDE Matrix row exists
AND no NDT test assignments (RT, UT, PT, MT, etc.) are filled
```

**Message Example:**
```
NDE Matrix has empty row for Line ABC-123 (Project: P001, Joint Type: BW). 
NDT assignment required.
```

**Link:** `/admin/types/nde-matrix?line={line}`

**Action:** 
- Fill in appropriate NDT test assignments for the row
- Ensure all required tests are assigned based on material and joint type

---

### 2️⃣4️⃣ NDT Request Overdue (10+ Days)

**When:** NDT test request created but not completed within 10 days  
**Why:** Ensure timely completion of NDT tests  
**Command:** `notifications:check-ndt-request-overdue`

**Condition:**
```
test_request_no is filled
AND request_date is filled
AND (test_date is empty OR test_date is NULL)
AND request_date < (NOW() - 10 days)
```

**Message Example:**
```
NDT Request RT-000123 (Joint W-456, ISO: ISO-789) is overdue. 
Request date: 2025-11-25 (15 days ago). Please complete the test.
```

**Link:** `/admin/types/weldlog?id={id}`

**Action:** 
- Complete the NDT test and update test_date
- If test is delayed, update request_date or cancel if unnecessary

---

### 2️⃣5️⃣-3️⃣3️⃣ Test Log PDF Reports Missing

**When:** Test completed but PDF report not uploaded  
**Why:** Documentation compliance - all test results must have PDF reports  
**Command:** `notifications:check-test-log-pdf`

**Test Types Checked:**
- **VT (Visual Testing):** `v_t_logs` table → `report_file` field
- **RT (Radiographic Testing):** `radiographic_tests` table → `report_file` field
- **UT (Ultrasonic Testing):** `ultrasonic_tests` table → `report_file` field
- **PT (Penetrant Testing):** `p_t_logs` table → `report_file` field
- **MT (Magnetic Testing):** `magnetic_tests` table → `report_file` field
- **HT (Hardness Testing):** `hardness_tests` table → `report_file` field
- **PMI (Positive Material Identification):** `p_m_i_tests` table → `report_file` field
- **PWHT (Post Weld Heat Treatment):** `p_w_h_t_s` table → `report_file` field
- **Ferrite Testing:** `ferrits` table → `report_file` field

**Condition:**
```
Test result is filled (vt_result, rt_result, ut_result, etc.)
AND report_file is empty or NULL
```

**Message Example:**
```
VT Test for Joint W-123 (ISO: ISO-456) is completed but PDF report is missing. 
Please upload test report.
```

**Link:** `/admin/types/{test-type}?id={id}`

**Action:** Upload the PDF test report in the respective test log module.

---

## ⏰ Schedule Overview

**New System (v4):** All notification checks run **every 5 minutes**.

**Features:**
- ✅ Real-time notifications (maximum 5 minutes delay)
- ✅ First run scans entire table
- ✅ Subsequent runs check only new records
- ✅ No duplicate notifications
- ✅ 90%+ performance improvement

**All Commands:**
- `notifications:check-deleted-joints` - Every 5 minutes
- `notifications:check-repair-log-new-joint` - Every 5 minutes
- `notifications:check-daily-repair-rate` - Every 5 minutes
- `notifications:check-line-list-missing-data` - Every 5 minutes
- `notifications:check-pdf-documents` - Every 5 minutes
- `notifications:check-weldlog-certificate` - Every 5 minutes
- `notifications:check-incoming-control-certificate` - Every 5 minutes
- `notifications:check-nde-matrix-discrepancies` - Every 5 minutes
- `notifications:check-ndt-calculation` - Every 5 minutes
- `notifications:check-manage-ndt-unnecessary` - Every 5 minutes
- `notifications:check-support-log-weldlog` - Every 5 minutes
- `notifications:check-paint-system-values` - Every 5 minutes
- `notifications:check-weldlog-test-dates` - Every 5 minutes
- `notifications:check-ndt-request-overdue` - Every 5 minutes
- `notifications:check-test-log-pdf` - Every 5 minutes

---

## 🛠️ Troubleshooting

### No Notifications Received?

1. **Check Role Assignment:**
   ```
   Settings → Specific Permissions → Notification Settings
   Verify your role is assigned to the notification type
   ```

2. **Check Scheduler:**
   ```bash
   # Verify cron is running
   ps aux | grep schedule:run
   
   # Check Notification logs
   tail -f storage/logs/notifications-YYYY-MM-DD.log
   ```

3. **Check Data:**
   ```bash
   # Manually run command to see results
   php artisan notifications:check-deleted-joints
   # Should output: "Sent X notifications..."
   ```

### Notifications Not Clearing?

- Click on notification to mark as read
- Use "Mark All as Read" button in dropdown
- Visit `/admin/types/my-notifications` for bulk actions

### Duplicate Notifications?

- ✅ **No duplicate notifications in new system**
- System won't send duplicate notifications for the same issue
- When new records are added, notification is updated (additive approach)
- When issue is resolved, notification automatically stops

---

## 📊 Database Schema

### notifications table
```sql
- id (primary key)
- user_id (foreign key → users)
- code (notification type code)
- title
- message
- link (URL to relevant page)
- is_read (boolean)
- created_at
- updated_at
```

### Indexes
```sql
- user_id
- is_read
- created_at
- code
```

---

## 🔗 Related Files

**Helper Functions:**
- `app/Functions/notification-state-helper.php` - State tracking functions
- `app/Functions/notification-helper.php` - Notification sending functions

**Commands (All updated for v4):**
- `app/Console/Commands/NotificationCheckDeletedJoints.php`
- `app/Console/Commands/NotificationCheckRepairLog.php`
- `app/Console/Commands/NotificationCheckRepairRate.php`
- `app/Console/Commands/NotificationCheckLineList.php`
- `app/Console/Commands/NotificationCheckPDFDocuments.php`
- `app/Console/Commands/NotificationCheckWeldlogCertificate.php`
- `app/Console/Commands/NotificationCheckIncomingControlCertificate.php`
- `app/Console/Commands/NotificationCheckNDEMatrixDiscrepancies.php`
- `app/Console/Commands/NotificationCheckNDTCalculation.php`
- `app/Console/Commands/NotificationCheckManageNDT.php`
- `app/Console/Commands/NotificationCheckSupportLogWeldlog.php`
- `app/Console/Commands/NotificationCheckPaintSystem.php`
- `app/Console/Commands/NotificationCheckWeldlogTestDates.php`
- `app/Console/Commands/NotificationCheckNDTRequestOverdue.php`
- `app/Console/Commands/NotificationCheckTestLogPDF.php`

**Schedule:**
- `app/Console/Kernel.php` - All commands run every 5 minutes

**Documentation:**
- `notification-testing-guide.md` - Testing guide (detailed test scenarios)

**Controllers:**
- `app/Http/Controllers/NotificationController.php`
- `app/Http/Controllers/AdminController.php` (line 1236-1244 for Welder ID Card)

**Views:**
- `resources/views/admin/master.blade.php` (Bell icon UI)
- `resources/views/admin/type/my-notifications.blade.php` (Full page)

**Config:**
- `app/Console/Kernel.php` (Scheduler registration)
- `resources/views/admin/type/settings/specific-permissions.blade.php` (Permissions)

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## 📝 Notes

- All notification messages are in **English**
- Notifications are **user-specific** based on role assignments
- Notification polling happens **every 60 seconds** in frontend
- Commands include **performance limits** (typically 50-100 records per run)
- **Caching** is used for unread counts to optimize performance

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## 🆘 Support

For technical support or questions:
1. Check Laravel logs: `storage/logs/truncgil-**-**.log`
2. Review command output for specific errors
3. Verify database connectivity and queue worker status
4. Contact system administrator for permission issues

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**End of Guide**