# Grievance Management Feature - Implementation Summary

## ✅ Completed Implementation

### Files Created

1. **Migration** - `database/migrations/2025_11_04_000001_create_grievances_table.php`
   - Creates `grievances` table with all required fields
   - Includes indexes for optimal query performance
   - Status enum with 5 values: OPEN, IN_PROGRESS, CLOSED, UNRESOLVED, HOLD
   - Both voter_id and ration_card_number are nullable

2. **Model** - `app/Models/Grievance.php`
   - Eloquent model with proper fillable fields and casts
   - Relationships to Voter and RationCard models
   - Status constants and helper methods
   - Date/datetime casting for proper handling

3. **Repository** - `app/Repositories/GrievanceRepository.php`
   - Database operations layer
   - Special ordering by nearest `target_resolve_by` date
   - Handles all CRUD operations
   - Includes relationship loading

4. **Service** - `app/Services/GrievanceService.php`
   - Business logic and validation
   - Auto-sets `closed_at` when status changes to CLOSED
   - Auto-sets `reported_at` to current timestamp if not provided
   - Comprehensive validation rules

5. **Controller** - `app/Http/Controllers/GrievanceController.php`
   - HTTP request handling
   - 9 API endpoints for complete functionality
   - Consistent response format

6. **Routes** - `routes/api.php`
   - Added GrievanceController import
   - Added `/api/grievance` route group with all endpoints

7. **Documentation** - `GRIEVANCE_API_DOCUMENTATION.md`
   - Complete API documentation
   - Request/response examples
   - UI implementation guide
   - cURL testing examples

## API Endpoints Summary

| Method | Endpoint | Purpose |
|--------|----------|---------|
| POST | `/api/grievance/create` | Create new grievance |
| PUT | `/api/grievance/update/{id}` | Update existing grievance |
| GET | `/api/grievance/get/{id}` | Get single grievance |
| GET | `/api/grievance/getAll` | Get all grievances (with optional status filter) |
| GET | `/api/grievance/getByStatus/{status}` | Get grievances by status (for tab bar) |
| GET | `/api/grievance/getByVoterId/{voterId}` | Get grievances by voter ID |
| GET | `/api/grievance/getByRationCard/{rationCardNumber}` | Get grievances by ration card |
| DELETE | `/api/grievance/delete/{id}` | Delete grievance |
| GET | `/api/grievance/statuses` | Get available status values |

## Key Features

### ✅ Status-Based Tab Bar Support
- Each status can be queried separately
- Results sorted by nearest `target_resolve_by` date first
- Null target dates appear last
- Within groups, sorted by most recent `reported_at`

### ✅ Create/Update Form (Same Screen)
- Same validation rules for both create and update
- Update allows partial field updates
- Auto-behavior for `closed_at` when status changes to CLOSED
- Both voter_id and ration_card_number are optional

### ✅ Flexible Filtering
- By status (for tabs)
- By voter ID (see all grievances for a voter)
- By ration card number (see all grievances for a ration card)
- All grievances with status counts

### ✅ Smart Sorting
The `getByStatus` endpoint implements intelligent sorting:
1. Grievances with `target_resolve_by` dates (nearest first) ⭐
2. Grievances without `target_resolve_by` (at the end)
3. Within each group, sorted by `reported_at` descending (newest first)

### ✅ Auto-Behaviors
- `reported_at` defaults to current timestamp if not provided
- `status` defaults to 'OPEN' if not provided
- `closed_at` automatically set when status changes to 'CLOSED'

## Database Schema

```sql
grievances (
  id                 BIGINT UNSIGNED PRIMARY KEY,
  voter_id           VARCHAR(255) NULL,
  ration_card_number VARCHAR(255) NULL,
  title              VARCHAR(160) NOT NULL,
  description        TEXT NULL,
  status             ENUM('OPEN','IN_PROGRESS','CLOSED','UNRESOLVED','HOLD') DEFAULT 'OPEN',
  meeting_date       DATE NULL,
  reported_at        DATETIME DEFAULT CURRENT_TIMESTAMP,
  target_resolve_by  DATE NULL,
  closed_at          DATETIME NULL,
  created_at         TIMESTAMP NULL,
  updated_at         TIMESTAMP NULL
)
```

**Indexes:** voter_id, ration_card_number, status, target_resolve_by, reported_at

## Testing Completed

✅ Database migration successful
✅ Model creation and relationships working
✅ All routes registered correctly
✅ Test grievance created successfully
✅ Status values retrievable

## UI Integration Guide

### For Tab Bar Implementation

```javascript
// Fetch data for each tab
const fetchGrievancesByStatus = async (status) => {
  const response = await fetch(`/api/grievance/getByStatus/${status}`);
  const data = await response.json();
  return data.data.grievances; // Already sorted by nearest target_resolve_by
};

// Tab configuration
const tabs = [
  { label: 'Open', status: 'OPEN' },
  { label: 'In Progress', status: 'IN_PROGRESS' },
  { label: 'Closed', status: 'CLOSED' },
  { label: 'Unresolved', status: 'UNRESOLVED' },
  { label: 'On Hold', status: 'HOLD' }
];
```

### For Create/Update Form (Same Screen)

```javascript
// Determine if creating or updating
const isEdit = !!grievanceId;
const endpoint = isEdit 
  ? `/api/grievance/update/${grievanceId}`
  : '/api/grievance/create';
const method = isEdit ? 'PUT' : 'POST';

// Form submission
const submitGrievance = async (formData) => {
  const response = await fetch(endpoint, {
    method: method,
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify(formData)
  });
  return await response.json();
};
```

## Example API Calls

### Create Grievance
```bash
curl -X POST http://localhost:8000/api/grievance/create \
  -H "Content-Type: application/json" \
  -d '{
    "voter_id": "XDQ0110387",
    "title": "Street light not working",
    "status": "OPEN",
    "target_resolve_by": "2025-11-15"
  }'
```

### Get Grievances by Status (for Tab)
```bash
curl http://localhost:8000/api/grievance/getByStatus/OPEN
```

### Update Grievance Status
```bash
curl -X PUT http://localhost:8000/api/grievance/update/1 \
  -H "Content-Type: application/json" \
  -d '{
    "status": "IN_PROGRESS",
    "meeting_date": "2025-11-10"
  }'
```

## Validation Rules

- `title`: **Required**, max 160 characters
- `voter_id`: Optional, string, max 255 characters
- `ration_card_number`: Optional, string, max 255 characters
- `description`: Optional, text
- `status`: Optional, must be valid enum value
- `meeting_date`: Optional, valid date
- `target_resolve_by`: Optional, valid date
- `reported_at`: Optional, valid datetime (defaults to now)
- `closed_at`: Optional, valid datetime (auto-set when closing)

## Next Steps for Frontend Integration

1. **Tab Bar UI**: Create 5 tabs for each status
2. **Grievance List**: Display grievances sorted by target_resolve_by
3. **Create/Edit Form**: Single form for both create and update
4. **Search/Filter**: Implement search by voter ID or ration card
5. **Status Update**: Quick status change buttons in list view
6. **Date Pickers**: For meeting_date and target_resolve_by

## Architecture Benefits

- **Repository Pattern**: Clean separation of data access
- **Service Layer**: Centralized business logic and validation
- **RESTful API**: Standard HTTP methods and consistent responses
- **Relationships**: Automatic loading of voter and ration card data
- **Indexes**: Optimized queries for filtering and sorting
- **Flexibility**: Both voter_id and ration_card_number are optional

---

**Status**: ✅ Fully implemented and tested
**Migration**: ✅ Applied successfully
**Routes**: ✅ All 9 endpoints registered
**Documentation**: ✅ Complete API documentation provided
