care-book-block-ultimate/.specify/tasks.md

Task Breakdown - Care Book Block Ultimate

Project: WordPress Plugin para Controlo de Appointments KiviCare
Status: Ready for Implementation
Branch: 001-wordpress-plugin-para
Generated: 2025-09-12 22:45

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📊 IMPLEMENTATION ROADMAP

🚨 PHASE 0: Security Foundation & Environment Setup

Duration: 3-4 days
Priority: CRITICAL

T0.1 - Development Environment Security Update

Priority: CRITICAL
Estimated: 4 hours
Dependencies: None

Tasks:

1. Update PHP to 8.1+ ou 8.4 (security compliance)
2. Update MySQL to 8.0.35+ (EOL compliance)
3. Install Composer latest version
4. Verify WordPress 6.8+ compatibility
5. Test KiviCare 3.6.8+ integration points
6. Document new environment specifications

Success Criteria:

• ✅ PHP 8.1+/8.4 functional with all WordPress features
• ✅ MySQL 8.0+ running with proper character sets
• ✅ Composer autoloading configured
• ✅ WordPress 6.8+ compatible environment

Files Affected:

• Development environment configuration
• Documentation updates

---

T0.2 - Plugin Foundation Structure

Priority: HIGH
Estimated: 6 hours
Dependencies: T0.1

Tasks:

1. Create plugin main file with PHP 8+ features
2. Setup Composer with PSR-4 autoloading
3. Create namespace structure CareBook\Ultimate\
4. Setup security validation framework
5. Create health monitoring foundation
6. Setup error reporting system

Success Criteria:

• ✅ Plugin loads without errors on activation
• ✅ PSR-4 autoloading functional
• ✅ Namespace isolation working
• ✅ Security framework operational

Code Example:

<?php
/**
 * Plugin Name: Care Book Block Ultimate
 * PHP Version: 8.1+
 * WordPress Version: 6.0+
 * KiviCare Version: 3.6.8+
 */
declare(strict_types=1);

namespace CareBook\Ultimate;

if (!defined('ABSPATH')) {
    exit;
}

require_once __DIR__ . '/vendor/autoload.php';

Files to Create:

• care-book-block-ultimate.php (main plugin file)
• composer.json (autoloading configuration)
• src/ directory structure

---

T0.3 - Database Schema & Migration System

Priority: HIGH
Estimated: 5 hours
Dependencies: T0.2

Tasks:

1. Create MySQL 8.0+ optimized schema
2. Implement migration system with rollback
3. Add proper indexing strategy
4. Setup JSON metadata support
5. Create database health checks
6. Test schema performance with sample data

Success Criteria:

• ✅ Database table created successfully
• ✅ Indexes performing as expected
• ✅ Migration system functional
• ✅ JSON metadata working

Schema:

CREATE TABLE wp_care_booking_restrictions (
    id BIGINT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
    doctor_id BIGINT UNSIGNED NOT NULL,
    service_id BIGINT UNSIGNED NULL COMMENT 'NULL = applies to all services',
    restriction_type ENUM('hide_doctor', 'hide_service', 'hide_combination') NOT NULL,
    is_active BOOLEAN DEFAULT true,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    created_by BIGINT UNSIGNED,
    metadata JSON NULL COMMENT 'MySQL 8.0+ JSON support',
    
    INDEX idx_doctor_service (doctor_id, service_id),
    INDEX idx_active_restrictions (is_active, restriction_type),
    INDEX idx_created_at (created_at),
    FOREIGN KEY (doctor_id) REFERENCES wp_kc_doctors(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

Files to Create:

• src/Database/Migration.php
• src/Database/Schema.php
• src/Database/HealthCheck.php

---

🚀 PHASE 0.5: Integration Resilience Layer ⭐ NEW

Duration: 2 days
Priority: HIGH

T0.5.1 - KiviCare Hook Compatibility System

Priority: HIGH
Estimated: 6 hours
Dependencies: T0.3

Tasks:

1. Create hook availability checking system
2. Implement fallback mechanisms for missing hooks
3. Add KiviCare version detection
4. Create graceful degradation patterns
5. Setup hook monitoring system
6. Test compatibility with KiviCare 3.6.8+

Success Criteria:

• ✅ Hook availability detection working
• ✅ Fallback mechanisms functional
• ✅ Version compatibility verified
• ✅ Graceful degradation operational

Code Example:

<?php
namespace CareBook\Ultimate\Integration;

class HookCompatibility {
    public function checkKiviCareIntegration(): array {
        return [
            'hooks_available' => $this->checkRequiredHooks(),
            'version_compatible' => $this->checkKiviCareVersion(),
            'fallback_needed' => $this->determineFallbackNeed()
        ];
    }
    
    private function checkRequiredHooks(): bool {
        return has_filter('kivicare_available_doctors') && 
               has_filter('kivicare_available_services');
    }
}

Files to Create:

• src/Integration/HookCompatibility.php
• src/Integration/FallbackHandler.php
• src/Integration/VersionChecker.php

---

📋 PHASE 1: Core Foundation Development

Duration: 5 days
Priority: HIGH

T1.1 - Core Domain Models (PHP 8+ Features)

Priority: HIGH
Estimated: 4 hours
Dependencies: T0.5.1

Tasks:

1. Create Restriction model with readonly class
2. Implement RestrictionType enum
3. Add value objects for domain logic
4. Create model validation rules
5. Setup model testing framework
6. Document model relationships

Success Criteria:

• ✅ All models instantiate correctly
• ✅ Type safety enforced
• ✅ Validation rules working
• ✅ Unit tests passing

Code Example:

<?php
declare(strict_types=1);

namespace CareBook\Ultimate\Models;

readonly class Restriction {
    public function __construct(
        public int $id,
        public int $doctorId,
        public ?int $serviceId,
        public RestrictionType $type,
        public bool $isActive = true,
        public ?\DateTimeImmutable $createdAt = null
    ) {}
}

enum RestrictionType: string {
    case HIDE_DOCTOR = 'hide_doctor';
    case HIDE_SERVICE = 'hide_service';  
    case HIDE_COMBINATION = 'hide_combination';
}

Files to Create:

• src/Models/Restriction.php
• src/Models/RestrictionType.php
• tests/Unit/Models/RestrictionTest.php

---

T1.2 - Repository Pattern Implementation

Priority: HIGH
Estimated: 5 hours
Dependencies: T1.1

Tasks:

1. Create RestrictionRepository interface
2. Implement MySQL repository with prepared statements
3. Add query builder for complex filtering
4. Implement caching layer integration
5. Add bulk operation methods
6. Create repository tests

Success Criteria:

• ✅ CRUD operations functional
• ✅ Prepared statements used throughout
• ✅ Caching integrated
• ✅ Bulk operations working
• ✅ Test coverage >90%

Code Example:

<?php
namespace CareBook\Ultimate\Repositories;

interface RestrictionRepositoryInterface {
    public function findActiveRestrictions(): array;
    public function findByDoctorId(int $doctorId): array;
    public function bulkToggle(array $ids, bool $isActive): bool;
}

class RestrictionRepository implements RestrictionRepositoryInterface {
    // Implementation with MySQL 8.0+ optimizations
}

Files to Create:

• src/Repositories/RestrictionRepositoryInterface.php
• src/Repositories/RestrictionRepository.php
• tests/Integration/RestrictionRepositoryTest.php

---

T1.3 - Multi-Layer Security System

Priority: CRITICAL
Estimated: 6 hours
Dependencies: T1.2

Tasks:

1. Implement 7-layer security validation
2. Create rate limiting system
3. Add CSRF/XSS protection
4. Setup input validation framework
5. Implement output escaping
6. Create security testing suite

Success Criteria:

• ✅ All 7 security layers functional
• ✅ Rate limiting operational
• ✅ XSS/CSRF protection working
• ✅ Input validation comprehensive
• ✅ Security tests passing

Code Example:

<?php
namespace CareBook\Ultimate\Security;

class SecurityValidator {
    public function validateAjaxRequest(): void {
        // Layer 1: WordPress nonce
        if (!wp_verify_nonce($_POST['nonce'], 'care_booking_nonce')) {
            wp_die('Security check failed');
        }
        
        // Layer 2: Capability checking
        if (!current_user_can('manage_care_restrictions')) {
            wp_die('Insufficient permissions');
        }
        
        // Layer 3: Rate limiting
        if (!$this->checkRateLimit()) {
            wp_die('Too many requests');
        }
        
        // Layer 4-7: Additional validation layers
        $this->validateInputData($_POST);
    }
}

Files to Create:

• src/Security/SecurityValidator.php
• src/Security/RateLimiter.php
• src/Security/InputSanitizer.php
• tests/Unit/Security/SecurityValidatorTest.php

---

⚡ PHASE 2: Core Features Implementation

Duration: 7 days
Priority: HIGH

T2.1 - CSS Injection System with FOUC Prevention

Priority: HIGH
Estimated: 5 hours
Dependencies: T1.3

Tasks:

1. Create CSS generation engine
2. Implement FOUC prevention strategy
3. Add progressive enhancement
4. Setup CSS minification
5. Create CSS caching system
6. Test cross-browser compatibility

Success Criteria:

• ✅ CSS injected correctly on frontend
• ✅ FOUC prevented (<50ms critical CSS)
• ✅ Progressive enhancement working
• ✅ CSS performance optimized

Code Example:

<?php
namespace CareBook\Ultimate\Services;

class CssInjectionService {
    public function injectRestrictionStyles(): void {
        $restrictions = $this->getActiveRestrictions();
        $css = $this->generateHidingCss($restrictions);
        
        // Critical CSS inline for FOUC prevention
        wp_add_inline_style('kivicare-frontend', $css);
    }
    
    private function generateHidingCss(array $restrictions): string {
        // Generate optimized CSS selectors
        return $this->buildSelectorCss($restrictions);
    }
}

Files to Create:

• src/Services/CssInjectionService.php
• src/Services/CssGenerator.php
• tests/Unit/Services/CssInjectionServiceTest.php

---

T2.2 - WordPress Admin Interface (AJAX)

Priority: HIGH
Estimated: 8 hours
Dependencies: T2.1

Tasks:

1. Create admin page structure
2. Implement AJAX endpoints with security
3. Build toggle interface components
4. Add bulk operations UI
5. Create progress indicators
6. Add user feedback systems

Success Criteria:

• ✅ Admin interface loads correctly
• ✅ AJAX responses <75ms
• ✅ Toggle functionality working
• ✅ Bulk operations functional
• ✅ User experience intuitive

Code Example:

<?php
namespace CareBook\Ultimate\Admin;

class AjaxHandler {
    public function registerEndpoints(): void {
        add_action('wp_ajax_care_toggle_restriction', [$this, 'toggleRestriction']);
        add_action('wp_ajax_care_bulk_update', [$this, 'bulkUpdate']);
    }
    
    public function toggleRestriction(): void {
        $this->validateNonce();
        $this->checkCapabilities();
        
        $request = $this->validateRequest($_POST);
        $result = $this->restrictionService->toggle($request);
        
        wp_send_json_success($result);
    }
}

Files to Create:

• src/Admin/AdminInterface.php
• src/Admin/AjaxHandler.php
• assets/js/admin.js
• assets/css/admin.css
• templates/admin/restriction-manager.php

---

T2.3 - KiviCare Hook Integration System

Priority: HIGH
Estimated: 6 hours
Dependencies: T2.2

Tasks:

1. Implement WordPress hook handlers
2. Create data filtering logic
3. Add hook monitoring system
4. Test integration with KiviCare 3.6.8+
5. Create integration tests
6. Document hook usage

Success Criteria:

• ✅ Hooks filter data correctly
• ✅ Integration stable with KiviCare
• ✅ No conflicts with other plugins
• ✅ Performance impact <1.5%

Code Example:

<?php
namespace CareBook\Ultimate\Integrations\KiviCare;

class HookManager {
    public function registerHooks(): void {
        add_filter('kivicare_available_doctors', [$this, 'filterDoctors'], 10, 2);
        add_filter('kivicare_available_services', [$this, 'filterServices'], 10, 2);
        add_action('kivicare_before_booking_form', [$this, 'injectCss']);
    }
    
    public function filterDoctors(array $doctors, array $context): array {
        $restrictions = $this->getActiveRestrictions();
        return $this->applyDoctorFiltering($doctors, $restrictions);
    }
}

Files to Create:

• src/Integrations/KiviCare/HookManager.php
• src/Integrations/KiviCare/DataFilter.php
• tests/Integration/KiviCareIntegrationTest.php

---

T2.4 - Advanced Caching System

Priority: HIGH
Estimated: 4 hours
Dependencies: T2.3

Tasks:

1. Implement distributed cache interface
2. Setup WordPress Transients caching
3. Create intelligent cache invalidation
4. Add cache performance monitoring
5. Setup cache warming system
6. Create cache tests

Success Criteria:

• ✅ Cache hit ratio >98%
• ✅ Cache invalidation working correctly
• ✅ Performance improvement measurable
• ✅ Multi-server compatible

Code Example:

<?php
namespace CareBook\Ultimate\Cache;

class RestrictionCache {
    private const CACHE_KEY = 'care_booking_restrictions';
    private const CACHE_EXPIRATION = 3600; // 1 hour
    
    public function getRestrictions(): array {
        $cached = get_transient(self::CACHE_KEY);
        if ($cached !== false) {
            return $cached;
        }
        
        $restrictions = $this->loadFromDatabase();
        set_transient(self::CACHE_KEY, $restrictions, self::CACHE_EXPIRATION);
        
        return $restrictions;
    }
}

Files to Create:

• src/Cache/CacheManager.php
• src/Cache/CacheInvalidator.php
• tests/Unit/Cache/CacheManagerTest.php

---

🔧 PHASE 3: Enhancement & Production Readiness

Duration: 10-12 days
Priority: MEDIUM-HIGH

T3.1 - Production Health Monitoring System

Priority: HIGH
Estimated: 6 hours
Dependencies: T2.4

Tasks:

1. Create comprehensive health check system
2. Implement error detection and reporting
3. Setup performance monitoring
4. Create automated alerts
5. Add system diagnostics
6. Create monitoring dashboard

Success Criteria:

• ✅ Health checks running hourly
• ✅ Errors detected and reported
• ✅ Performance metrics tracked
• ✅ Alerts functioning

Code Example:

<?php
namespace CareBook\Ultimate\Monitoring;

class HealthMonitor {
    public function checkKiviCareIntegration(): array {
        return [
            'hooks_available' => $this->checkRequiredHooks(),
            'database_accessible' => $this->checkDatabaseHealth(),
            'cache_working' => $this->checkCacheSystem(),
            'permissions_correct' => $this->checkPermissions()
        ];
    }
    
    public function scheduleHealthChecks(): void {
        wp_schedule_event(time(), 'hourly', 'care_booking_health_check');
    }
}

Files to Create:

• src/Monitoring/HealthMonitor.php
• src/Monitoring/PerformanceTracker.php
• src/Monitoring/AlertSystem.php

---

T3.2 - Bulk Operations & Advanced Features

Priority: MEDIUM
Estimated: 6 hours
Dependencies: T3.1

Tasks:

1. Implement bulk toggle operations
2. Create import/export functionality
3. Add search and filtering
4. Create audit logging system
5. Add backup/restore mechanisms
6. Create advanced UI components

Success Criteria:

• ✅ Bulk operations handle >1000 items
• ✅ Import/export working with JSON
• ✅ Search functionality responsive
• ✅ Audit trail complete

Files to Create:

• src/Services/BulkOperations.php
• src/Services/ImportExport.php
• src/Services/AuditLogger.php

---

T3.3 - Comprehensive Testing Suite

Priority: HIGH
Estimated: 8 hours
Dependencies: T3.2

Tasks:

1. Complete unit test coverage (>90%)
2. Create integration tests with KiviCare
3. Add performance regression tests
4. Setup automated test running
5. Create mock objects for testing
6. Add end-to-end tests

Success Criteria:

• ✅ Unit test coverage >90%
• ✅ Integration tests passing
• ✅ Performance tests meeting targets
• ✅ CI/CD pipeline functional

Files to Create:

• tests/Unit/ (complete coverage)
• tests/Integration/ (KiviCare integration)
• tests/Performance/ (regression tests)
• tests/Mocks/KiviCareMock.php

---

T3.4 - Performance Optimization & Finalization

Priority: MEDIUM
Estimated: 6 hours
Dependencies: T3.3

Tasks:

1. Optimize database queries for MySQL 8.0+
2. Implement advanced caching strategies
3. Minimize CSS and JavaScript
4. Add lazy loading where appropriate
5. Create performance benchmarks
6. Finalize documentation

Success Criteria:

• ✅ Page load overhead <1.5%
• ✅ AJAX response time <75ms
• ✅ Cache hit ratio >98%
• ✅ Memory usage <8MB

Performance Targets:

• Page Load Overhead: <1.5% (improved from <2%)
• AJAX Response: <75ms (improved from <100ms)
• Cache Hit Ratio: >98% (improved from >95%)
• Database Query: <30ms (MySQL 8.0 optimized)
• Memory Usage: <8MB (PHP 8+ efficiency)

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🧪 TESTING STRATEGY

Unit Tests (PHPUnit 10+)

• All models and services
• Security validation functions
• Cache invalidation logic
• Input sanitization methods

Integration Tests

• WordPress hook integration
• KiviCare compatibility (3.6.8+)
• Database operations
• Admin interface functionality

Performance Tests

• Page load impact measurement
• AJAX response time testing
• Cache performance validation
• Database query optimization

Security Tests

• Input validation testing
• XSS/CSRF prevention validation
• Rate limiting verification
• Capability checking tests

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📈 SUCCESS METRICS

Functional Metrics

• Doctor/service restrictions working in real-time
• Admin interface learning curve <30 seconds
• Zero KiviCare core modifications required
• Bulk operations handle >1000 items efficiently

Performance Metrics

• Page load overhead <1.5%
• AJAX response time <75ms
• Cache hit ratio >98%
• Database queries <30ms (MySQL 8.0)
• Memory usage <8MB

Security Metrics

• All 7 security layers operational
• Zero security vulnerabilities in code scan
• Rate limiting prevents abuse
• Input validation blocks malicious data

Reliability Metrics

• Health monitoring system operational
• Automated error detection working
• Fallback mechanisms tested
• Integration resilience confirmed

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⚠️ RISK MITIGATION

Critical Issues Addressed

1. Hook Dependencies Risk: ✅ Fallback mechanisms + version checking
2. FOUC Performance Risk: ✅ Critical CSS inline + progressive enhancement
3. Database Scaling: ✅ Advanced indexing + MySQL 8.0+ optimization
4. Cache Distribution: ✅ Distributed cache interface preparation
5. AJAX Security: ✅ Multi-layer security validation
6. Plugin Conflicts: ✅ Enhanced namespacing + prefixing
7. PHP 8+ Migration: ✅ Graceful degradation + version checking
8. Testing Complexity: ✅ Mock objects + live integration tests
9. Rollback Strategy: ✅ Backup/restore mechanism
10. Production Monitoring: ✅ Health monitoring system

---

📅 TIMELINE SUMMARY

Phase	Duration	Focus	Critical Tasks
Phase 0	3-4 days	Security & Foundation	T0.1, T0.2, T0.3
Phase 0.5	2 days	Integration Resilience	T0.5.1
Phase 1	5 days	Core Foundation	T1.1, T1.2, T1.3
Phase 2	7 days	Core Features	T2.1, T2.2, T2.3, T2.4
Phase 3	10-12 days	Enhancement & Production	T3.1, T3.2, T3.3, T3.4
Total	27-30 days	Complete System	Production-Ready Plugin

---

✅ DEFINITION OF DONE

Technical Requirements

• ✅ PHP 8.1+/8.4 compatibility verified
• ✅ MySQL 8.0+ optimized and tested
• ✅ WordPress 6.8+ compatibility confirmed
• ✅ KiviCare 3.6.8+ integration working
• ✅ PSR-4 autoloading implemented
• ✅ Multi-layer security operational
• ✅ Performance targets met

Quality Requirements

• ✅ Test coverage >90%
• ✅ No security vulnerabilities
• ✅ Code review completed
• ✅ Documentation complete
• ✅ Health monitoring operational

Business Requirements

• ✅ User acceptance criteria met
• ✅ Performance requirements achieved
• ✅ Scalability targets reached
• ✅ Reliability standards met

---

Status: ✅ READY FOR IMPLEMENTATION
Next Steps: Begin Phase 0 - Security Foundation & Environment Setup
Priority: Execute T0.1 (Development Environment Security Update)

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Generated By: Context7 + Planning Phase + Validation Process
Total Tasks: 16 major tasks with 94+ subtasks
Confidence Level: HIGH (validated through multiple sources)