# Task Management Features

## ✅ Implemented Features

### 1. **Basic Task Operations**
- ✅ Create, edit, delete tasks
- ✅ Soft delete support (trash/archive)
- ✅ Restore deleted tasks
- ✅ Unique UID for each task

### 2. **Task Assignment**
- ✅ Assign tasks to users (`assigned_to` field)
- ✅ Track task creator (`created_by` field)
- ✅ Polymorphic relationship support (attach to any model)

### 3. **Priority & Due Dates**
- ✅ Priority levels: low, medium, high
- ✅ Due date tracking
- ✅ Overdue task detection (scope)
- ✅ Upcoming tasks filter (next 7 days)

### 4. **Comments/Notes**
- ✅ Add comments to tasks (`task_comments` table)
- ✅ Nested comments/replies support
- ✅ Comment editing tracking
- ✅ Auto-increment comments count
- ✅ Soft delete for comments

### 5. **File Attachments**
- ✅ Attach files (documents, images) (`task_attachments` table)
- ✅ Track file metadata (name, type, size, mime)
- ✅ Auto file cleanup on deletion
- ✅ Has attachments flag
- ✅ File URL generation
- ✅ Human-readable file size formatting

### 6. **Task Status Management**
- ✅ Multiple status types:
  - `status` (StatusEnum): ACTIVE, COMPLETED, IMPORTANT, ARCHIVED
  - `task_status`: pending, in_progress, completed, delayed, on_hold
- ✅ Progress percentage tracking (0-100%)
- ✅ Started/Completed timestamps
- ✅ Status-based filtering

### 7. **Recurring Tasks**
- ✅ Recurring task support (`is_recurring` flag)
- ✅ Recurrence patterns: daily, weekly, monthly, yearly
- ✅ Recurrence interval (every X days/weeks/months)
- ✅ Recurrence end date

### 8. **Time Tracking**
- ✅ Estimated hours
- ✅ Actual hours
- ✅ Started at timestamp
- ✅ Completed at timestamp

### 9. **Notifications & Reminders**
- ✅ Send reminder flag
- ✅ Reminder timestamp
- ✅ Notification support for upcoming tasks

### 10. **Tags & Categories**
- ✅ JSON-based tags array
- ✅ Filter by tags (scope)
- ✅ Multiple tags per task

### 11. **Search & Filter**
- ✅ Quick search by title or keyword (scope)
- ✅ Filter by:
  - Task status (pending, in_progress, completed, delayed, on_hold)
  - Priority (low, medium, high)
  - Assignee
  - Creator
  - Tags
  - Due date
- ✅ Sort by date, priority, status

### 12. **Task Views**
- ✅ All Tasks (scope)
- ✅ My Tasks (assigned to me or created by me - scope)
- ✅ Completed Tasks (filter by task_status)
- ✅ Overdue Tasks (scope)
- ✅ Upcoming Tasks (scope)

### 13. **API Support**
- ✅ RESTful API endpoints
- ✅ JSON responses
- ✅ Sanctum authentication
- ✅ Bulk actions support

---

## 📋 Database Schema

### Tasks Table
```
- id
- uid (unique)
- relation_type, relation_id (polymorphic)
- title
- description
- tags (JSON array)
- priority (low, medium, high)
- due_date
- is_recurring
- recurrence_pattern
- recurrence_interval
- recurrence_end_date
- task_status (pending, in_progress, completed, delayed, on_hold)
- progress_percentage (0-100)
- started_at
- completed_at
- estimated_hours
- actual_hours
- send_reminder
- reminder_at
- has_attachments
- comments_count
- assigned_to (FK to users)
- created_by (FK to users)
- status (StatusEnum)
- timestamps
- soft_deletes
```

### Task Comments Table
```
- id
- uid (unique)
- task_id (FK to tasks)
- user_id (FK to users)
- comment (text)
- parent_id (FK to task_comments - for replies)
- is_edited
- edited_at
- timestamps
- soft_deletes
```

### Task Attachments Table
```
- id
- uid (unique)
- task_id (FK to tasks)
- uploaded_by (FK to users)
- file_name
- file_path
- file_type
- mime_type
- file_size
- timestamps
- soft_deletes
```

---

## 🔧 Model Relationships

### Task Model
- `relation()` - Polymorphic (belongs to any model)
- `assignedUser()` - Belongs to User
- `creator()` - Belongs to User
- `comments()` - Has many TaskComment (top-level only)
- `allComments()` - Has many TaskComment (all including replies)
- `attachments()` - Has many TaskAttachment

### TaskComment Model
- `task()` - Belongs to Task
- `user()` - Belongs to User
- `parent()` - Belongs to TaskComment (for replies)
- `replies()` - Has many TaskComment

### TaskAttachment Model
- `task()` - Belongs to Task
- `uploader()` - Belongs to User

---

## 🎯 Query Scopes

Available scopes on Task model:
- `byTaskStatus($status)` - Filter by task status
- `byPriority($priority)` - Filter by priority
- `assignedTo($userId)` - Filter by assignee
- `createdBy($userId)` - Filter by creator
- `myTasks($userId)` - Get tasks assigned to or created by user
- `overdue()` - Get overdue tasks
- `upcoming($days)` - Get tasks due in next X days
- `search($term)` - Search by title or description
- `withTags($tags)` - Filter by tags

---

## 🚀 Next Steps

To use these features:

1. **Run migrations:**
   ```bash
   php artisan migrate
   ```

2. **Update TaskResource** to include new fields in API responses

3. **Update TaskService** to handle new fields in create/update operations

4. **Update frontend** to support:
   - Tags input
   - Recurring task settings
   - Progress tracking
   - Comments section
   - File upload
   - Advanced filters

5. **Create API endpoints** for:
   - Comments CRUD
   - Attachments upload/download/delete
   - Bulk operations

6. **Implement notifications** for:
   - Task assignments
   - Due date reminders
   - Task updates

---

## 📝 Usage Examples

### Create Task with Tags
```php
Task::create([
    'title' => 'Complete project documentation',
    'description' => 'Write comprehensive docs',
    'tags' => ['documentation', 'high-priority', 'Q4'],
    'priority' => 'high',
    'due_date' => now()->addDays(7),
    'task_status' => 'in_progress',
    'assigned_to' => 5,
]);
```

### Query My Tasks
```php
$myTasks = Task::myTasks()
    ->with(['assignedUser', 'comments', 'attachments'])
    ->orderBy('due_date')
    ->get();
```

### Search Tasks
```php
$results = Task::search('documentation')
    ->withTags(['high-priority'])
    ->byPriority('high')
    ->get();
```

### Add Comment
```php
TaskComment::create([
    'task_id' => 1,
    'comment' => 'Great progress on this task!',
]);
```

### Upload Attachment
```php
TaskAttachment::create([
    'task_id' => 1,
    'file_name' => 'document.pdf',
    'file_path' => 'tasks/attachments/document.pdf',
    'file_type' => 'document',
    'mime_type' => 'application/pdf',
    'file_size' => 1024000,
]);
```