research/notification-plugin-enhancement #1

🚀 Daily Notification Plugin Enhancement - Callback System & Dual Scheduling

Branch: research/notification-plugin-enhancement
Created: 2025-08-26 06:49:36 UTC
Author: Matthew Raymer

📋 Overview

This PR enhances the Daily Notification Plugin with a callback system for API integration and dual scheduling methods to support both online-first and offline-first workflows. The plugin will use SQLite for content persistence and provide flexible integration points for TimeSafari's reporting services.

🎯 Requirements

Callback system for API calls to reporting services
Dual scheduling methods:
- Method 1: Call API → Store in SQLite → Schedule notification
- Method 2: Retrieve from SQLite → Notify user
SQLite database for content persistence
Backward compatibility with existing API

🏗️ Architecture Changes

1. Enhanced Interface Definitions

interface NotificationCallbacks {
  onContentFetch?: (url: string, options: FetchOptions) => Promise<FetchResult>;
  onContentStore?: (content: NotificationContent, metadata: ContentMetadata) => Promise<void>;
  onContentRetrieve?: (id: string) => Promise<NotificationContent | null>;
  onNotificationScheduled?: (scheduleId: string, options: ScheduleOptions) => void;
  onNotificationDelivered?: (notificationId: string, deliveryTime: number) => void;
  onError?: (error: NotificationError, context: ErrorContext) => void;
}

interface EnhancedDailyNotificationPlugin {
  scheduleWithContentPipeline(options: PipelineOptions): Promise<PipelineResult>;
  scheduleFromStoredContent(contentId: string, options: NotificationOptions): Promise<void>;
  scheduleDailyNotification(options: NotificationOptions): Promise<void>; // Existing
  registerCallbacks(callbacks: NotificationCallbacks): void;
}

2. SQLite Database Schema

CREATE TABLE notification_content (
  id TEXT PRIMARY KEY,
  url TEXT NOT NULL,
  title TEXT NOT NULL,
  body TEXT NOT NULL,
  data TEXT, -- JSON metadata
  created_at INTEGER NOT NULL,
  expires_at INTEGER,
  last_accessed INTEGER,
  access_count INTEGER DEFAULT 0
);

CREATE TABLE notification_schedules (
  id TEXT PRIMARY KEY,
  content_id TEXT NOT NULL,
  scheduled_time INTEGER NOT NULL,
  status TEXT DEFAULT 'pending',
  created_at INTEGER NOT NULL,
  FOREIGN KEY (content_id) REFERENCES notification_content(id)
);

📅 Implementation Phases

Phase 1: Callback Infrastructure

Extend interface definitions with callback types
Add callback registration methods to plugin class
Implement callback invocation in existing methods
Add callback validation and error handling
Update TypeScript definitions and exports
Write unit tests for callback system

Phase 2: SQLite Database Layer

Design and implement SQLite database schema
Create database helper classes for content operations
Implement content storage and retrieval methods
Add database migration and versioning
Implement content lifecycle management (expiration, cleanup)
Write database integration tests

Phase 3: Dual Scheduling Methods

Implement scheduleWithContentPipeline method
Implement scheduleFromStoredContent method
Enhance existing scheduling to support both approaches
Add comprehensive error handling and fallbacks
Implement content prefetching and caching strategies
Write integration tests for dual scheduling

Phase 4: Platform Implementation

Update Android implementation with new methods
Add iOS-specific implementations
Add Web platform support
Platform-specific testing and validation
Performance optimization and error handling

Phase 5: Integration & Testing

Update existing test suite
Add comprehensive tests for new functionality
Update documentation and examples
Performance testing and optimization
Final integration testing

🔧 Technical Implementation Details

Callback System

Registration: registerCallbacks(callbacks: NotificationCallbacks)
Invocation: Automatic invocation during notification lifecycle
Error Handling: Comprehensive error catching and reporting
Validation: Input validation and timeout handling

SQLite Integration

Database: SQLite with Room (Android) / SQLite.swift (iOS) / sql.js (Web)
Schema: Content storage with metadata and lifecycle management
Migrations: Version-controlled schema updates
Performance: Indexed queries and connection pooling

Dual Scheduling

Pipeline Method: Full API → DB → Schedule workflow
Stored Method: DB → Schedule workflow
Fallback: Automatic fallback between methods
Caching: Intelligent content caching and expiration

🧪 Testing Strategy

Unit Tests

Callback registration and invocation
Database operations (CRUD)
Scheduling method validation
Error handling scenarios

Integration Tests

End-to-end pipeline testing
Cross-platform compatibility
Performance and reliability
Edge case handling

Test Coverage

Maintain 100% test coverage
Add new test suites for enhanced functionality
Performance benchmarking
Memory leak detection

📚 Documentation Updates

API Documentation

Updated interface definitions
New method documentation
Callback system usage examples
Database schema documentation

Usage Examples

Basic callback registration
Dual scheduling workflows
Error handling patterns
Best practices guide

Migration Guide

Upgrading from existing API
Backward compatibility notes
Breaking changes (if any)
Performance considerations

�� Security & Privacy

Data Protection

SQLite database encryption
Secure content storage
Access control and permissions
Data retention policies

API Security

Callback authentication
Input validation and sanitization
Error message sanitization
Rate limiting and throttling

📊 Performance Considerations

Database Performance

Indexed queries for fast retrieval
Connection pooling and management
Query optimization
Memory usage monitoring

Scheduling Performance

Efficient background processing
Minimal battery impact
Network usage optimization
Cache hit ratio monitoring

🔄 Backward Compatibility

Existing API

All existing methods remain unchanged
Existing functionality preserved
No breaking changes to current usage
Gradual migration path available

Migration Path

Optional callback registration
Existing scheduling methods work as before
New methods available for enhanced functionality
Clear upgrade documentation

✅ Success Criteria

Functional Requirements

Callback system fully functional
Dual scheduling methods working
SQLite database integration complete
All platforms supported
100% test coverage maintained

Non-Functional Requirements

Performance benchmarks met
Memory usage optimized
Battery impact minimized
Documentation complete
Security requirements satisfied

🚨 Risk Mitigation

Technical Risks

Database Schema Changes: Version-controlled migrations
Platform Differences: Android-first implementation
Callback Errors: Comprehensive error handling
Performance Impact: Benchmarking and optimization

Project Risks

Scope Creep: Clear phase boundaries
Timeline Delays: Incremental delivery
Quality Issues: Continuous testing
Integration Problems: Early validation

📝 Next Steps

Review and approve this enhancement plan
Begin Phase 1 implementation
Set up development environment for SQLite testing
Create feature branch for implementation
Establish testing framework for new functionality

## 🚀 **Daily Notification Plugin Enhancement - Callback System & Dual Scheduling** **Branch**: `research/notification-plugin-enhancement` **Created**: 2025-08-26 06:49:36 UTC **Author**: Matthew Raymer --- ### **📋 Overview** This PR enhances the Daily Notification Plugin with a callback system for API integration and dual scheduling methods to support both online-first and offline-first workflows. The plugin will use SQLite for content persistence and provide flexible integration points for TimeSafari's reporting services. ### **🎯 Requirements** - **Callback system** for API calls to reporting services - **Dual scheduling methods**: - Method 1: Call API → Store in SQLite → Schedule notification - Method 2: Retrieve from SQLite → Notify user - **SQLite database** for content persistence - **Backward compatibility** with existing API ### **🏗️ Architecture Changes** #### **1. Enhanced Interface Definitions** ```typescript interface NotificationCallbacks { onContentFetch?: (url: string, options: FetchOptions) => Promise<FetchResult>; onContentStore?: (content: NotificationContent, metadata: ContentMetadata) => Promise<void>; onContentRetrieve?: (id: string) => Promise<NotificationContent | null>; onNotificationScheduled?: (scheduleId: string, options: ScheduleOptions) => void; onNotificationDelivered?: (notificationId: string, deliveryTime: number) => void; onError?: (error: NotificationError, context: ErrorContext) => void; } interface EnhancedDailyNotificationPlugin { scheduleWithContentPipeline(options: PipelineOptions): Promise<PipelineResult>; scheduleFromStoredContent(contentId: string, options: NotificationOptions): Promise<void>; scheduleDailyNotification(options: NotificationOptions): Promise<void>; // Existing registerCallbacks(callbacks: NotificationCallbacks): void; } ``` #### **2. SQLite Database Schema** ```sql CREATE TABLE notification_content ( id TEXT PRIMARY KEY, url TEXT NOT NULL, title TEXT NOT NULL, body TEXT NOT NULL, data TEXT, -- JSON metadata created_at INTEGER NOT NULL, expires_at INTEGER, last_accessed INTEGER, access_count INTEGER DEFAULT 0 ); CREATE TABLE notification_schedules ( id TEXT PRIMARY KEY, content_id TEXT NOT NULL, scheduled_time INTEGER NOT NULL, status TEXT DEFAULT 'pending', created_at INTEGER NOT NULL, FOREIGN KEY (content_id) REFERENCES notification_content(id) ); ``` ### **📅 Implementation Phases** #### **Phase 1: Callback Infrastructure** - [ ] Extend interface definitions with callback types - [ ] Add callback registration methods to plugin class - [ ] Implement callback invocation in existing methods - [ ] Add callback validation and error handling - [ ] Update TypeScript definitions and exports - [ ] Write unit tests for callback system #### **Phase 2: SQLite Database Layer** - [ ] Design and implement SQLite database schema - [ ] Create database helper classes for content operations - [ ] Implement content storage and retrieval methods - [ ] Add database migration and versioning - [ ] Implement content lifecycle management (expiration, cleanup) - [ ] Write database integration tests #### **Phase 3: Dual Scheduling Methods** - [ ] Implement `scheduleWithContentPipeline` method - [ ] Implement `scheduleFromStoredContent` method - [ ] Enhance existing scheduling to support both approaches - [ ] Add comprehensive error handling and fallbacks - [ ] Implement content prefetching and caching strategies - [ ] Write integration tests for dual scheduling #### **Phase 4: Platform Implementation** - [ ] Update Android implementation with new methods - [ ] Add iOS-specific implementations - [ ] Add Web platform support - [ ] Platform-specific testing and validation - [ ] Performance optimization and error handling #### **Phase 5: Integration & Testing** - [ ] Update existing test suite - [ ] Add comprehensive tests for new functionality - [ ] Update documentation and examples - [ ] Performance testing and optimization - [ ] Final integration testing ### **🔧 Technical Implementation Details** #### **Callback System** - **Registration**: `registerCallbacks(callbacks: NotificationCallbacks)` - **Invocation**: Automatic invocation during notification lifecycle - **Error Handling**: Comprehensive error catching and reporting - **Validation**: Input validation and timeout handling #### **SQLite Integration** - **Database**: SQLite with Room (Android) / SQLite.swift (iOS) / sql.js (Web) - **Schema**: Content storage with metadata and lifecycle management - **Migrations**: Version-controlled schema updates - **Performance**: Indexed queries and connection pooling #### **Dual Scheduling** - **Pipeline Method**: Full API → DB → Schedule workflow - **Stored Method**: DB → Schedule workflow - **Fallback**: Automatic fallback between methods - **Caching**: Intelligent content caching and expiration ### **🧪 Testing Strategy** #### **Unit Tests** - Callback registration and invocation - Database operations (CRUD) - Scheduling method validation - Error handling scenarios #### **Integration Tests** - End-to-end pipeline testing - Cross-platform compatibility - Performance and reliability - Edge case handling #### **Test Coverage** - Maintain 100% test coverage - Add new test suites for enhanced functionality - Performance benchmarking - Memory leak detection ### **📚 Documentation Updates** #### **API Documentation** - Updated interface definitions - New method documentation - Callback system usage examples - Database schema documentation #### **Usage Examples** - Basic callback registration - Dual scheduling workflows - Error handling patterns - Best practices guide #### **Migration Guide** - Upgrading from existing API - Backward compatibility notes - Breaking changes (if any) - Performance considerations ### **�� Security & Privacy** #### **Data Protection** - SQLite database encryption - Secure content storage - Access control and permissions - Data retention policies #### **API Security** - Callback authentication - Input validation and sanitization - Error message sanitization - Rate limiting and throttling ### **📊 Performance Considerations** #### **Database Performance** - Indexed queries for fast retrieval - Connection pooling and management - Query optimization - Memory usage monitoring #### **Scheduling Performance** - Efficient background processing - Minimal battery impact - Network usage optimization - Cache hit ratio monitoring ### **🔄 Backward Compatibility** #### **Existing API** - All existing methods remain unchanged - Existing functionality preserved - No breaking changes to current usage - Gradual migration path available #### **Migration Path** - Optional callback registration - Existing scheduling methods work as before - New methods available for enhanced functionality - Clear upgrade documentation ### **✅ Success Criteria** #### **Functional Requirements** - [ ] Callback system fully functional - [ ] Dual scheduling methods working - [ ] SQLite database integration complete - [ ] All platforms supported - [ ] 100% test coverage maintained #### **Non-Functional Requirements** - [ ] Performance benchmarks met - [ ] Memory usage optimized - [ ] Battery impact minimized - [ ] Documentation complete - [ ] Security requirements satisfied ### **🚨 Risk Mitigation** #### **Technical Risks** - **Database Schema Changes**: Version-controlled migrations - **Platform Differences**: Android-first implementation - **Callback Errors**: Comprehensive error handling - **Performance Impact**: Benchmarking and optimization #### **Project Risks** - **Scope Creep**: Clear phase boundaries - **Timeline Delays**: Incremental delivery - **Quality Issues**: Continuous testing - **Integration Problems**: Early validation ### **📝 Next Steps** 1. **Review and approve** this enhancement plan 2. **Begin Phase 1** implementation 3. **Set up development environment** for SQLite testing 4. **Create feature branch** for implementation 5. **Establish testing framework** for new functionality