platform/doc/process_gap_analysis.md

Process Package Gap Analysis

Overview

This document analyzes the gaps between our Process package's actual implementation and Laravel's process functionality, identifying areas that need implementation or documentation updates.

Related Documentation

• See Process Package Specification for current implementation
• See Laravel Compatibility Roadmap for overall status
• See Foundation Integration Guide for integration patterns
• See Testing Guide for testing approaches
• See Getting Started Guide for development setup
• See Events Package Specification for process events
• See Queue Package Specification for background processing

Implementation Gaps

1. Missing Laravel Features

// Documented but not implemented:

// 1. Process Pipelines
class ProcessPipeline {
  // Need to implement:
  Future<ProcessResult> pipe(String command);
  Future<ProcessResult> pipeThrough(List<String> commands);
  Future<ProcessResult> pipeInput(String input);
  Future<ProcessResult> pipeOutput(String file);
  Future<ProcessResult> pipeErrorOutput(String file);
}

// 2. Process Scheduling
class ProcessScheduler {
  // Need to implement:
  void schedule(String command, String frequency);
  void daily(String command, [String time = '00:00']);
  void weekly(String command, [int day = 0]);
  void monthly(String command, [int day = 1]);
  void cron(String expression, String command);
}

// 3. Process Monitoring
class ProcessMonitor {
  // Need to implement:
  Future<bool> isRunning(int pid);
  Future<ProcessStats> getStats(int pid);
  Future<void> onExit(int pid, Function callback);
  Future<void> onOutput(int pid, Function callback);
  Future<void> onError(int pid, Function callback);
}

2. Missing Process Features

// Need to implement:

// 1. Process Groups
class ProcessGroup {
  // Need to implement:
  Future<void> start();
  Future<void> stop();
  Future<void> restart();
  Future<List<ProcessResult>> wait();
  Future<void> signal(ProcessSignal signal);
  bool isRunning();
}

// 2. Process Isolation
class ProcessIsolation {
  // Need to implement:
  void setUser(String user);
  void setGroup(String group);
  void setWorkingDirectory(String directory);
  void setEnvironment(Map<String, String> env);
  void setResourceLimits(ResourceLimits limits);
}

// 3. Process Recovery
class ProcessRecovery {
  // Need to implement:
  void onCrash(Function callback);
  void onHang(Function callback);
  void onHighMemory(Function callback);
  void onHighCpu(Function callback);
  void restart();
}

3. Missing Integration Features

// Need to implement:

// 1. Queue Integration
class QueuedProcess {
  // Need to implement:
  Future<void> queue(String command);
  Future<void> laterOn(String queue, Duration delay, String command);
  Future<void> chain(List<String> commands);
  Future<void> release(Duration delay);
}

// 2. Event Integration
class ProcessEvents {
  // Need to implement:
  void beforeStart(Function callback);
  void afterStart(Function callback);
  void beforeStop(Function callback);
  void afterStop(Function callback);
  void onOutput(Function callback);
  void onError(Function callback);
}

// 3. Logging Integration
class ProcessLogging {
  // Need to implement:
  void enableLogging();
  void setLogFile(String path);
  void setLogLevel(LogLevel level);
  void rotateLog();
  void purgeOldLogs(Duration age);
}

Documentation Gaps

1. Missing API Documentation

// Need to document:

/// Pipes process output.
/// 
/// Example:
/// ```dart
/// await process
///   .pipe('sort')
///   .pipe('uniq')
///   .pipeOutput('output.txt');
/// ```
Future<ProcessResult> pipe(String command);

/// Schedules process execution.
///
/// Example:
/// ```dart
/// scheduler.daily('backup.sh', '02:00');
/// scheduler.weekly('cleanup.sh', DateTime.sunday);
/// scheduler.cron('0 * * * *', 'hourly.sh');
/// ```
void schedule(String command, String frequency);

2. Missing Integration Examples

// Need examples for:

// 1. Process Groups
var group = ProcessGroup();
group.add('web-server', '--port=8080');
group.add('worker', '--queue=default');
await group.start();

// 2. Process Recovery
var recovery = ProcessRecovery(process);
recovery.onCrash(() async {
  await notifyAdmin('Process crashed');
  await process.restart();
});

// 3. Process Monitoring
var monitor = ProcessMonitor(process);
monitor.onHighMemory((usage) async {
  await process.restart();
  await notifyAdmin('High memory usage: $usage');
});

3. Missing Test Coverage

// Need tests for:

void main() {
  group('Process Pipelines', () {
    test('pipes process output', () async {
      var process = await manager.start('ls');
      var result = await process
        .pipe('sort')
        .pipe('uniq')
        .pipeOutput('output.txt');
      
      expect(result.exitCode, equals(0));
      expect(File('output.txt').existsSync(), isTrue);
    });
  });
  
  group('Process Scheduling', () {
    test('schedules daily tasks', () async {
      var scheduler = ProcessScheduler();
      scheduler.daily('backup.sh', '02:00');
      
      var nextRun = scheduler.getNextRun('backup.sh');
      expect(nextRun.hour, equals(2));
    });
  });
}

Implementation Priority

1. High Priority

   • Process pipelines (Laravel compatibility)
   • Process scheduling (Laravel compatibility)
   • Process monitoring

2. Medium Priority

   • Process groups
   • Process isolation
   • Process recovery

3. Low Priority

   • Additional integration features
   • Additional monitoring features
   • Performance optimizations

Next Steps

1. Implementation Tasks

   • Add process pipelines
   • Add process scheduling
   • Add process monitoring
   • Add process groups

2. Documentation Tasks

   • Document pipelines
   • Document scheduling
   • Document monitoring
   • Add integration examples

3. Testing Tasks

   • Add pipeline tests
   • Add scheduling tests
   • Add monitoring tests
   • Add group tests

Development Guidelines

1. Getting Started

Before implementing process features:

1. Review Getting Started Guide
2. Check Laravel Compatibility Roadmap
3. Follow Testing Guide
4. Use Foundation Integration Guide
5. Review Process Package Specification
6. Review Events Package Specification
7. Review Queue Package Specification

2. Implementation Process

For each process feature:

1. Write tests following Testing Guide
2. Implement following Laravel patterns
3. Document following Getting Started Guide
4. Integrate following Foundation Integration Guide

3. Quality Requirements

All implementations must:

1. Pass all tests (see Testing Guide)
2. Meet Laravel compatibility requirements
3. Follow integration patterns (see Foundation Integration Guide)
4. Match specifications in Process Package Specification

4. Integration Considerations

When implementing process features:

1. Follow patterns in Foundation Integration Guide
2. Ensure Laravel compatibility per Laravel Compatibility Roadmap
3. Use testing approaches from Testing Guide
4. Follow development setup in Getting Started Guide

5. Performance Guidelines

Process system must:

1. Handle concurrent processes efficiently
2. Manage system resources
3. Support process pooling
4. Scale with process count
5. Meet performance targets in Laravel Compatibility Roadmap

6. Testing Requirements

Process tests must:

1. Cover all process operations
2. Test concurrent execution
3. Verify event handling
4. Check resource cleanup
5. Follow patterns in Testing Guide

7. Documentation Requirements

Process documentation must:

1. Explain process patterns
2. Show pipeline examples
3. Cover error handling
4. Include performance tips
5. Follow standards in Getting Started Guide