# Shipment Status Update Feature - Implementation Summary

## What Was Created

A complete **Own Courier Shipment Status Update** system that allows manual tracking updates for own courier shipments with dual table updates (tbl_tracking and tbl_bookings).

## Files Created

### 1. **shipment-status-update.php** (497 lines)
Main interface page for status updates

**Features:**
- Search shipments by Booking ID, Waybill No, or Reference ID
- Display complete shipment details in a formatted table
- Manual status update form with:
  - Status dropdown (8 predefined values)
  - Date/Time picker
  - Location input
  - Remarks textarea
- Recent updates sidebar (last 10 records)
- All shipments data table with filters and inline update buttons

**Columns Displayed:**
```
AWB NumberNo.Of BoxTo PayDate AddedStatusWeightClient NameConsignorConsigneeOrigin (State=>City->Pincode)Destination (State=>City->Pincode)
```

**Form Fields:**
```
Select Update Status: [Pending | Not Picked | Manifested | LOST | In Transit | Delivered | RTO | Out For Delivery]
Status Update Date: [Date/Time Picker]
Status Location: [Text Input]
Remarks/Instructions: [Textarea]
Action: [Update Status Button]
```

### 2. **api/tracking/create.php** (133 lines)
API endpoint for creating tracking records

**Functionality:**
- Validates all required fields
- Checks if booking exists
- Prevents duplicate tracking records
- Inserts into tbl_tracking
- Updates tbl_bookings.last_status automatically
- Uses database transactions for consistency
- Returns detailed response with IDs

## Database Changes Required

### Table: tbl_tracking
- Already exists (used for scan records)
- Fields:
  - booking_id (FK to tbl_bookings)
  - waybill_no
  - scan_type (status value)
  - scan_location (location)
  - scan_datetime (date/time)
  - status_code
  - remarks
  - raw_response (JSON)
  - created_by
  - created_at

### Table: tbl_bookings
- Add column if missing: `last_status` varchar(100)
- This gets updated automatically when status is changed

## How It Works

### Search & Display:
1. User selects search type and enters value
2. System searches tbl_bookings for matching shipment
3. Displays all shipment details in formatted table
4. Shows current status as badge
5. Loads recent tracking history in sidebar

### Status Update:
1. User selects new status
2. Sets date/time and optionally location and remarks
3. Submits form
4. System validates data
5. Inserts tracking record into tbl_tracking
6. Updates tbl_bookings.last_status
7. Refreshes UI with success message

### Data Consistency:
- Both tables updated in single transaction
- Duplicate tracking records prevented
- If any error occurs, entire transaction rolled back

## Available Statuses

```
1. Pending             - Initial status
2. Not Picked         - Pickup failed
3. Manifested         - Added to manifest
4. In Transit         - On the way
5. Out For Delivery   - Final mile delivery
6. Delivered          - Delivered successfully
7. LOST               - Shipment lost
8. RTO                - Return to origin
```

## User Interface Layout

### Search Section (Top)
```
[Search Type Dropdown] [Search Input] [Search Button]
```

### Shipment Details (After Search)
```
┌─────────────────────────────────────┐
│ Booking ID | Waybill No | Ref ID    │
│ Consignee  | Phone      | Status    │
│ Boxes      | Weight     | Client    │
│ Origin     | Destination| Date      │
└─────────────────────────────────────┘
```

### Status Update Form (After Search)
```
┌────────────────────────────────────────┐
│ Status Dropdown (required)             │
│ Date/Time Picker (required)            │
│ Location Input (optional)              │
│ Remarks Textarea (optional)            │
│ [Update Status] [Reset]                │
└────────────────────────────────────────┘
```

### Recent Updates Sidebar (After Search)
```
┌──────────────────────────┐
│ Recent Status Updates     │
│ [Last 10 records]        │
│ - Date & Time            │
│ - Status                 │
│ - Location               │
└──────────────────────────┘
```

### All Shipments Table (Bottom)
```
Filters: [Status Filter] [Branch Filter]

Table Columns:
ID | Waybill | Ref | Boxes | To Pay | Date | Status | Weight | Client | Consignor | Consignee | Origin | Destination | Action
```

## Key Features

✅ **Dual Table Updates** - Both tbl_tracking and tbl_bookings updated simultaneously
✅ **Search Flexibility** - By Booking ID, Waybill No, or Reference ID
✅ **Complete Details** - Shows all shipment information
✅ **Status History** - Recent updates sidebar shows tracking history
✅ **Data Validation** - Client-side and server-side validation
✅ **Error Prevention** - Duplicate record prevention
✅ **Transaction Safety** - Database transactions for consistency
✅ **Real-time UI** - Auto-refresh after updates
✅ **Responsive Design** - Works on desktop and mobile
✅ **Filter & Search** - Table filtering and searching

## API Endpoints Used

### Create/Update Tracking
- **URL:** `/steve/api/tracking/create.php`
- **Method:** POST
- **Parameters:** booking_id, status, status_date, location, remarks
- **Returns:** JSON with success/error status

### Search Shipment
- **URL:** `/steve/api/booking/readone.php`
- **Method:** GET
- **Parameters:** id OR waybill OR ref
- **Returns:** Complete shipment details

### Read Tracking History
- **URL:** `/steve/api/tracking/read.php`
- **Method:** GET
- **Parameters:** id (booking_id)
- **Returns:** Array of tracking records

### List All Shipments
- **URL:** `/steve/api/shipment/read.php`
- **Method:** GET
- **Parameters:** status, branch_id, own_courier
- **Returns:** DataTable formatted response

## Testing Steps

1. **Open Page:** Navigate to `shipment-status-update.php`
2. **Search Shipment:** Enter booking ID and search
3. **Verify Details:** Check all shipment information displays
4. **Update Status:** 
   - Select a new status
   - Set date/time
   - Add location (optional)
   - Click Update
5. **Verify Update:**
   - Success message appears
   - Recent updates sidebar refreshes
   - Shipment table updates
   - Check database for tbl_tracking record
   - Check tbl_bookings.last_status

## Validation Rules

**Client-Side:**
- Status field required
- Status date field required
- Date format validation
- Location optional but recommended

**Server-Side:**
- Booking must exist
- Status cannot be empty
- Valid MySQL datetime format
- Duplicate prevention check
- Transaction rollback on error

## Response Format

### Success:
```json
{
  "status": "success",
  "message": "Tracking updated successfully",
  "tracking_id": 123,
  "booking_id": 456,
  "new_status": "In Transit"
}
```

### Error:
```json
{
  "status": "error",
  "message": "Error description"
}
```

## Navigation Links

Add to sidebar menu:
```html
<a href="shipment-status-update.php" class="nav-link">
    <i class="ti ti-package"></i> Status Update (Own Courier)
</a>
```

## Technical Details

### Frontend Stack:
- jQuery for AJAX calls
- DataTables for table management
- Bootstrap 5 for UI
- Select2 for dropdowns

### Backend Stack:
- PHP 7.4+
- PDO for database
- MySQL 5.7+
- Transactions for data consistency

### Database:
- tbl_bookings - Stores booking info
- tbl_tracking - Stores tracking/scan records
- Both tables linked via booking_id

## Important Notes

⚠️ **Data Integrity:**
- Status updates are permanent
- Each update creates a tracking record
- Booking status auto-updates
- Transactions ensure consistency

⚠️ **Performance:**
- Proper indexing on foreign keys
- Duplicate check prevents duplicate records
- Real-time updates without page refresh

⚠️ **Security:**
- Input sanitization on all fields
- SQL prepared statements used
- Permission checks can be enabled
- User tracking (created_by field)

## Documentation Files

1. **OWN_COURIER_STATUS_UPDATE.md** (443 lines)
   - Complete feature documentation
   - API details
   - User guide
   - Testing checklist
   - Database schema

2. **SHIPMENT_STATUS_UPDATE_SUMMARY.md** (this file)
   - Quick reference
   - Implementation overview
   - Quick start guide

## File Locations

```
/steve/shipment-status-update.php          - Main page
/steve/api/tracking/create.php             - Create tracking API
/steve/OWN_COURIER_STATUS_UPDATE.md        - Full documentation
/steve/SHIPMENT_STATUS_UPDATE_SUMMARY.md   - Quick reference
```

## Quick Start

1. **Access Page:** `http://localhost/steve/shipment-status-update.php`
2. **Search:** Enter booking ID and click Search
3. **View Details:** Check shipment information
4. **Update:** Select status, set date, click Update
5. **Verify:** Check success message and updated records

## Future Enhancements

- Bulk status updates
- CSV/Excel import
- Status templates
- SMS/Email notifications
- Analytics and reports
- Mobile app support
- Automated status updates from APIs

## Support & Troubleshooting

**Issue:** Shipment not found
- Check booking ID is correct
- Verify shipment exists in database

**Issue:** Status update fails
- Check all required fields are filled
- Verify date format is correct
- Check database connection

**Issue:** Table not loading
- Clear browser cache
- Refresh page
- Check network tab in DevTools

**Issue:** Recent updates not showing
- Verify tbl_tracking exists
- Check booking_id FK is correct
- Verify tracking records created

## Summary

This feature provides a complete solution for manually updating own courier shipment statuses with:
- User-friendly search and update interface
- Real-time data validation
- Dual table updates for consistency
- Complete shipment details display
- Tracking history visibility
- Comprehensive error handling
- Professional UI/UX design

Perfect for managing own courier shipments with manual scan/type status updates!
