zai-mcp-server
Version:
🚀 REVOLUTIONARY AI-to-AI Collaboration Platform v6.1! NEW: Advanced Debugging Tools with Screenshot Analysis, Console Error Parsing, Automated Fix Generation, 5 Specialized Debugging Agents, Visual UI Analysis, JavaScript Error Intelligence, CSS/HTML Fix
625 lines (530 loc) • 22.3 kB
JavaScript
/**
* Loop Workflow Engine
* Provides multi-stage pipelines, conditional branching, checkpointing, and merge/split capabilities
*/
import { EventEmitter } from 'events';
export class LoopWorkflowEngine extends EventEmitter {
constructor() {
super();
this.workflows = new Map();
this.checkpoints = new Map();
this.branchManager = new BranchManager();
this.pipelineManager = new PipelineManager();
this.mergeManager = new MergeManager();
this.workflowTemplates = new Map();
this.initializeWorkflowTemplates();
console.log('🔄 Loop Workflow Engine initialized with advanced pipeline capabilities');
}
/**
* Initialize workflow templates
*/
initializeWorkflowTemplates() {
// Multi-stage pipeline templates
this.workflowTemplates.set('development_pipeline', {
name: 'Development Pipeline',
stages: [
{ name: 'planning', type: 'sequential', dependencies: [] },
{ name: 'design', type: 'sequential', dependencies: ['planning'] },
{ name: 'implementation', type: 'parallel', dependencies: ['design'] },
{ name: 'testing', type: 'sequential', dependencies: ['implementation'] },
{ name: 'deployment', type: 'sequential', dependencies: ['testing'] }
],
checkpoints: ['design_complete', 'implementation_ready', 'testing_passed'],
branching: {
'implementation': ['feature_branch', 'hotfix_branch'],
'testing': ['unit_tests', 'integration_tests', 'e2e_tests']
}
});
this.workflowTemplates.set('research_pipeline', {
name: 'Research Pipeline',
stages: [
{ name: 'hypothesis', type: 'sequential', dependencies: [] },
{ name: 'data_collection', type: 'parallel', dependencies: ['hypothesis'] },
{ name: 'analysis', type: 'sequential', dependencies: ['data_collection'] },
{ name: 'validation', type: 'parallel', dependencies: ['analysis'] },
{ name: 'conclusion', type: 'sequential', dependencies: ['validation'] }
],
checkpoints: ['hypothesis_validated', 'data_sufficient', 'analysis_complete'],
branching: {
'analysis': ['statistical_analysis', 'qualitative_analysis'],
'validation': ['peer_review', 'cross_validation']
}
});
this.workflowTemplates.set('optimization_pipeline', {
name: 'Optimization Pipeline',
stages: [
{ name: 'baseline', type: 'sequential', dependencies: [] },
{ name: 'profiling', type: 'parallel', dependencies: ['baseline'] },
{ name: 'optimization', type: 'parallel', dependencies: ['profiling'] },
{ name: 'validation', type: 'sequential', dependencies: ['optimization'] },
{ name: 'deployment', type: 'sequential', dependencies: ['validation'] }
],
checkpoints: ['baseline_established', 'bottlenecks_identified', 'optimizations_validated'],
branching: {
'optimization': ['performance_opt', 'memory_opt', 'algorithm_opt'],
'validation': ['benchmark_tests', 'stress_tests']
}
});
}
/**
* Create Multi-Stage Loop Pipeline
*/
async createPipeline(loopId, templateName, config = {}) {
console.log(`🔄 [${loopId}] Creating ${templateName} pipeline...`);
const template = this.workflowTemplates.get(templateName);
if (!template) {
throw new Error(`Unknown workflow template: ${templateName}`);
}
const pipeline = {
id: `pipeline_${loopId}_${Date.now()}`,
loopId,
template: templateName,
stages: template.stages.map(stage => ({
...stage,
status: 'pending',
startTime: null,
endTime: null,
results: null,
branches: []
})),
checkpoints: template.checkpoints.map(cp => ({
name: cp,
status: 'pending',
timestamp: null,
data: null
})),
currentStage: 0,
status: 'created',
config,
createdAt: Date.now(),
metadata: {
totalStages: template.stages.length,
parallelCapable: template.stages.some(s => s.type === 'parallel'),
branchingEnabled: Object.keys(template.branching || {}).length > 0
}
};
this.workflows.set(pipeline.id, pipeline);
await this.pipelineManager.initializePipeline(pipeline);
console.log(`✅ [${loopId}] Pipeline ${pipeline.id} created with ${pipeline.stages.length} stages`);
return pipeline;
}
/**
* Execute Pipeline Stage
*/
async executePipelineStage(pipelineId, stageIndex, input = {}) {
const pipeline = this.workflows.get(pipelineId);
if (!pipeline) {
throw new Error(`Pipeline not found: ${pipelineId}`);
}
const stage = pipeline.stages[stageIndex];
if (!stage) {
throw new Error(`Stage ${stageIndex} not found in pipeline ${pipelineId}`);
}
console.log(`🔄 [${pipeline.loopId}] Executing stage: ${stage.name} (${stage.type})`);
// Check dependencies
const dependenciesMet = await this.checkStageDependencies(pipeline, stage);
if (!dependenciesMet) {
throw new Error(`Dependencies not met for stage: ${stage.name}`);
}
// Create checkpoint before execution
await this.createCheckpoint(pipelineId, `before_${stage.name}`, {
stage: stage.name,
input,
timestamp: Date.now()
});
stage.status = 'running';
stage.startTime = Date.now();
try {
let result;
if (stage.type === 'parallel') {
result = await this.executeParallelStage(pipeline, stage, input);
} else {
result = await this.executeSequentialStage(pipeline, stage, input);
}
stage.status = 'completed';
stage.endTime = Date.now();
stage.results = result;
// Check for conditional branching
const branchingDecision = await this.evaluateConditionalBranching(pipeline, stage, result);
if (branchingDecision.shouldBranch) {
await this.executeBranching(pipeline, stage, branchingDecision);
}
// Update checkpoints
await this.updateCheckpoints(pipeline, stage, result);
console.log(`✅ [${pipeline.loopId}] Stage ${stage.name} completed in ${stage.endTime - stage.startTime}ms`);
this.emit('stageCompleted', {
pipelineId,
loopId: pipeline.loopId,
stage: stage.name,
result,
duration: stage.endTime - stage.startTime
});
return result;
} catch (error) {
stage.status = 'failed';
stage.endTime = Date.now();
stage.error = error.message;
console.error(`❌ [${pipeline.loopId}] Stage ${stage.name} failed:`, error.message);
// Attempt recovery
const recoveryResult = await this.attemptStageRecovery(pipeline, stage, error);
if (recoveryResult.recovered) {
console.log(`🔄 [${pipeline.loopId}] Stage ${stage.name} recovered using ${recoveryResult.method}`);
stage.status = 'recovered';
stage.results = recoveryResult.result;
return recoveryResult.result;
}
throw error;
}
}
/**
* Conditional Loop Branching
*/
async evaluateConditionalBranching(pipeline, stage, result) {
const template = this.workflowTemplates.get(pipeline.template);
const stageBranching = template.branching?.[stage.name];
if (!stageBranching) {
return { shouldBranch: false };
}
// Evaluate branching conditions
const conditions = {
quality_threshold: result.quality > 0.8,
complexity_high: result.complexity === 'high',
performance_good: result.performance > 0.7,
error_rate_low: (result.errorRate || 0) < 0.05,
resource_available: result.resourceUsage < 0.8
};
// Simple branching logic
if (conditions.quality_threshold && conditions.performance_good) {
return {
shouldBranch: true,
type: 'quality_branch',
branches: stageBranching,
reason: 'High quality and performance detected'
};
}
if (conditions.complexity_high) {
return {
shouldBranch: true,
type: 'complexity_branch',
branches: stageBranching,
reason: 'High complexity requires specialized handling'
};
}
return { shouldBranch: false };
}
/**
* Execute Branching
*/
async executeBranching(pipeline, stage, branchingDecision) {
console.log(`🌿 [${pipeline.loopId}] Creating branches for stage ${stage.name}: ${branchingDecision.branches.join(', ')}`);
const branches = [];
for (const branchName of branchingDecision.branches) {
const branch = await this.branchManager.createBranch(pipeline, stage, branchName, branchingDecision);
branches.push(branch);
}
stage.branches = branches;
// Execute branches in parallel
const branchResults = await Promise.allSettled(
branches.map(branch => this.branchManager.executeBranch(branch))
);
// Merge branch results
const mergeResult = await this.mergeManager.mergeBranchResults(branches, branchResults);
console.log(`🔀 [${pipeline.loopId}] Merged ${branches.length} branches for stage ${stage.name}`);
return mergeResult;
}
/**
* Loop Checkpointing - Save/restore loop state
*/
async createCheckpoint(pipelineId, checkpointName, data) {
const pipeline = this.workflows.get(pipelineId);
if (!pipeline) {
throw new Error(`Pipeline not found: ${pipelineId}`);
}
const checkpoint = {
id: `checkpoint_${pipelineId}_${checkpointName}_${Date.now()}`,
pipelineId,
name: checkpointName,
data,
pipelineState: JSON.parse(JSON.stringify(pipeline)), // Deep copy
timestamp: Date.now()
};
this.checkpoints.set(checkpoint.id, checkpoint);
console.log(`💾 [${pipeline.loopId}] Checkpoint created: ${checkpointName}`);
return checkpoint.id;
}
async restoreFromCheckpoint(checkpointId) {
const checkpoint = this.checkpoints.get(checkpointId);
if (!checkpoint) {
throw new Error(`Checkpoint not found: ${checkpointId}`);
}
const restoredPipeline = checkpoint.pipelineState;
this.workflows.set(restoredPipeline.id, restoredPipeline);
console.log(`🔄 [${restoredPipeline.loopId}] Restored from checkpoint: ${checkpoint.name}`);
return restoredPipeline;
}
/**
* Loop Merge & Split
*/
async splitPipeline(pipelineId, splitPoint, splitStrategy = 'parallel') {
const pipeline = this.workflows.get(pipelineId);
if (!pipeline) {
throw new Error(`Pipeline not found: ${pipelineId}`);
}
console.log(`✂️ [${pipeline.loopId}] Splitting pipeline at stage ${splitPoint} using ${splitStrategy} strategy`);
const splitResult = await this.pipelineManager.splitPipeline(pipeline, splitPoint, splitStrategy);
// Create new pipelines for each split
const splitPipelines = [];
for (const split of splitResult.splits) {
const newPipeline = {
...pipeline,
id: `split_${pipeline.id}_${split.name}_${Date.now()}`,
stages: split.stages,
parentPipelineId: pipeline.id,
splitInfo: {
splitPoint,
strategy: splitStrategy,
splitName: split.name
}
};
this.workflows.set(newPipeline.id, newPipeline);
splitPipelines.push(newPipeline);
}
console.log(`✅ [${pipeline.loopId}] Pipeline split into ${splitPipelines.length} sub-pipelines`);
return splitPipelines;
}
async mergePipelines(pipelineIds, mergeStrategy = 'sequential') {
console.log(`🔀 Merging ${pipelineIds.length} pipelines using ${mergeStrategy} strategy`);
const pipelines = pipelineIds.map(id => this.workflows.get(id)).filter(Boolean);
if (pipelines.length !== pipelineIds.length) {
throw new Error('Some pipelines not found for merging');
}
const mergeResult = await this.mergeManager.mergePipelines(pipelines, mergeStrategy);
const mergedPipeline = {
id: `merged_${Date.now()}`,
loopId: pipelines[0].loopId,
template: 'merged_pipeline',
stages: mergeResult.stages,
mergeInfo: {
sourcePipelines: pipelineIds,
strategy: mergeStrategy,
mergedAt: Date.now()
},
status: 'created',
createdAt: Date.now()
};
this.workflows.set(mergedPipeline.id, mergedPipeline);
console.log(`✅ Merged pipeline created: ${mergedPipeline.id}`);
return mergedPipeline;
}
// Helper methods
async checkStageDependencies(pipeline, stage) {
if (!stage.dependencies || stage.dependencies.length === 0) {
return true;
}
for (const depName of stage.dependencies) {
const depStage = pipeline.stages.find(s => s.name === depName);
if (!depStage || depStage.status !== 'completed') {
return false;
}
}
return true;
}
async executeSequentialStage(pipeline, stage, input) {
// Simulate sequential execution
await new Promise(resolve => setTimeout(resolve, 100));
return {
type: 'sequential',
stage: stage.name,
input,
output: `Sequential result for ${stage.name}`,
quality: 0.8,
performance: 0.7,
complexity: 'medium',
duration: 100
};
}
async executeParallelStage(pipeline, stage, input) {
// Simulate parallel execution
const parallelTasks = ['task_1', 'task_2', 'task_3'];
const results = await Promise.all(
parallelTasks.map(async (task, index) => {
await new Promise(resolve => setTimeout(resolve, 50 + index * 10));
return {
task,
result: `Parallel result for ${task}`,
duration: 50 + index * 10
};
})
);
return {
type: 'parallel',
stage: stage.name,
input,
parallelResults: results,
quality: 0.85,
performance: 0.9,
complexity: 'high',
totalDuration: Math.max(...results.map(r => r.duration))
};
}
async updateCheckpoints(pipeline, stage, result) {
// Update relevant checkpoints based on stage completion
const relevantCheckpoints = pipeline.checkpoints.filter(cp =>
cp.name.includes(stage.name) || stage.name.includes(cp.name.split('_')[0])
);
for (const checkpoint of relevantCheckpoints) {
if (checkpoint.status === 'pending') {
checkpoint.status = 'completed';
checkpoint.timestamp = Date.now();
checkpoint.data = {
stage: stage.name,
result: result,
quality: result.quality
};
console.log(`🎯 [${pipeline.loopId}] Checkpoint achieved: ${checkpoint.name}`);
}
}
}
async attemptStageRecovery(pipeline, stage, error) {
console.log(`🔄 [${pipeline.loopId}] Attempting recovery for stage ${stage.name}...`);
// Try different recovery strategies
const recoveryStrategies = [
'retry_with_reduced_scope',
'fallback_to_previous_checkpoint',
'skip_with_default_result'
];
for (const strategy of recoveryStrategies) {
try {
const result = await this.executeRecoveryStrategy(pipeline, stage, error, strategy);
return {
recovered: true,
method: strategy,
result
};
} catch (recoveryError) {
console.log(`⚠️ [${pipeline.loopId}] Recovery strategy ${strategy} failed:`, recoveryError.message);
}
}
return { recovered: false };
}
async executeRecoveryStrategy(pipeline, stage, error, strategy) {
switch (strategy) {
case 'retry_with_reduced_scope':
// Retry with simpler parameters
return await this.executeSequentialStage(pipeline, stage, { simplified: true });
case 'fallback_to_previous_checkpoint':
// Use result from previous successful stage
const prevStage = pipeline.stages[pipeline.stages.indexOf(stage) - 1];
return prevStage?.results || { fallback: true };
case 'skip_with_default_result':
// Return default result
return {
type: 'default',
stage: stage.name,
skipped: true,
reason: error.message
};
default:
throw new Error(`Unknown recovery strategy: ${strategy}`);
}
}
// Public API methods
getPipeline(pipelineId) {
return this.workflows.get(pipelineId);
}
getAllPipelines() {
return Array.from(this.workflows.values());
}
getPipelinesByLoop(loopId) {
return Array.from(this.workflows.values()).filter(p => p.loopId === loopId);
}
getCheckpoints(pipelineId) {
return Array.from(this.checkpoints.values()).filter(c => c.pipelineId === pipelineId);
}
async deletePipeline(pipelineId) {
const pipeline = this.workflows.get(pipelineId);
if (pipeline) {
// Clean up checkpoints
const pipelineCheckpoints = this.getCheckpoints(pipelineId);
for (const checkpoint of pipelineCheckpoints) {
this.checkpoints.delete(checkpoint.id);
}
this.workflows.delete(pipelineId);
console.log(`🗑️ [${pipeline.loopId}] Pipeline ${pipelineId} deleted`);
return true;
}
return false;
}
}
// Supporting classes
class BranchManager {
async createBranch(pipeline, stage, branchName, branchingDecision) {
return {
id: `branch_${pipeline.id}_${stage.name}_${branchName}_${Date.now()}`,
pipelineId: pipeline.id,
stageName: stage.name,
branchName,
branchingDecision,
status: 'created',
createdAt: Date.now()
};
}
async executeBranch(branch) {
// Simulate branch execution
await new Promise(resolve => setTimeout(resolve, 100));
return {
branchId: branch.id,
branchName: branch.branchName,
result: `Branch result for ${branch.branchName}`,
quality: 0.75 + Math.random() * 0.2,
duration: 100
};
}
}
class PipelineManager {
async initializePipeline(pipeline) {
// Initialize pipeline-specific resources
console.log(`🔧 [${pipeline.loopId}] Initializing pipeline resources...`);
return true;
}
async splitPipeline(pipeline, splitPoint, strategy) {
const beforeSplit = pipeline.stages.slice(0, splitPoint);
const afterSplit = pipeline.stages.slice(splitPoint);
return {
splits: [
{ name: 'before', stages: beforeSplit },
{ name: 'after', stages: afterSplit }
]
};
}
}
class MergeManager {
async mergeBranchResults(branches, branchResults) {
const successfulResults = branchResults
.filter(result => result.status === 'fulfilled')
.map(result => result.value);
return {
merged: true,
branchCount: branches.length,
successfulBranches: successfulResults.length,
averageQuality: successfulResults.reduce((sum, r) => sum + r.quality, 0) / successfulResults.length,
combinedResult: successfulResults.map(r => r.result).join('; ')
};
}
async mergePipelines(pipelines, strategy) {
if (strategy === 'sequential') {
return {
stages: pipelines.flatMap(p => p.stages)
};
} else if (strategy === 'parallel') {
return {
stages: pipelines.map((p, index) => ({
name: `parallel_group_${index}`,
type: 'parallel',
subStages: p.stages
}))
};
}
throw new Error(`Unknown merge strategy: ${strategy}`);
}
}