291 lines
No EOL
14 KiB
Python
291 lines
No EOL
14 KiB
Python
# handlingTasks.py
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# Refactored for clarity and consolidation
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import asyncio
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import logging
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import json
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import time
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from typing import Dict, Any, Optional, List, Union
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from datetime import datetime, UTC
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from modules.interfaces.interfaceChatModel import (
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TaskStatus, TaskStep, TaskContext, TaskAction, ActionExecutionResult, ReviewResult, TaskPlan, WorkflowResult, TaskResult, ReviewContext
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)
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from .executionState import TaskExecutionState
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from .handlingActions import HandlingActions
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from .promptFactory import createTaskPlanningPrompt, createActionDefinitionPrompt, createResultReviewPrompt
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logger = logging.getLogger(__name__)
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class HandlingTasks:
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def __init__(self, chatInterface, service, workflow=None):
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self.chatInterface = chatInterface
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self.service = service
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self.workflow = workflow
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self.handlingActions = HandlingActions(service, chatInterface)
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async def generateTaskPlan(self, userInput: str, workflow) -> TaskPlan:
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"""Generate a high-level task plan for the workflow."""
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try:
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logger.info(f"Generating task plan for workflow {workflow.id}")
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prompt = await self.service.callAiTextAdvanced(
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createTaskPlanningPrompt(self, {
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'user_request': userInput,
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'available_documents': self._getAvailableDocuments(workflow),
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'workflow_id': workflow.id
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})
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)
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task_plan_dict = self._parseTaskPlanResponse(prompt)
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if not self._validateTaskPlan(task_plan_dict):
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logger.error("Generated task plan failed validation")
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raise Exception("AI-generated task plan failed validation - AI is required for task planning")
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tasks = [TaskStep(**task_dict) for task_dict in task_plan_dict.get('tasks', [])]
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return TaskPlan(
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overview=task_plan_dict.get('overview', ''),
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tasks=tasks
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)
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except Exception as e:
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logger.error(f"Error in generateTaskPlan: {str(e)}")
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raise
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async def generateTaskActions(self, task_step, workflow, previous_results=None, enhanced_context=None) -> List[TaskAction]:
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"""Generate actions for a given task step."""
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try:
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logger.info(f"Generating actions for task: {task_step.description}")
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context = enhanced_context or TaskContext(
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task_step=task_step,
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workflow=workflow,
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workflow_id=workflow.id,
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available_documents=self._getAvailableDocuments(workflow),
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previous_results=previous_results or [],
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improvements=[],
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retry_count=0,
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previous_action_results=[],
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previous_review_result=None,
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is_regeneration=False,
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failure_patterns=[],
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failed_actions=[],
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successful_actions=[]
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)
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prompt = await self.service.callAiTextAdvanced(
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createActionDefinitionPrompt(self, context)
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)
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actions = self.handlingActions.parseActionResponse(prompt)
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if not self._validateActions(actions, context):
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logger.error("Generated actions failed validation")
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raise Exception("AI-generated actions failed validation - AI is required for action generation")
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# Convert to TaskAction objects
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task_actions = [self.chatInterface.createTaskAction({
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"execMethod": a.get('method', 'unknown'),
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"execAction": a.get('action', 'unknown'),
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"execParameters": a.get('parameters', {}),
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"execResultLabel": a.get('resultLabel', ''),
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"expectedDocumentFormats": a.get('expectedDocumentFormats', None),
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"status": TaskStatus.PENDING
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}) for a in actions]
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return [ta for ta in task_actions if ta]
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except Exception as e:
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logger.error(f"Error in generateTaskActions: {str(e)}")
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return []
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async def executeTask(self, task_step, workflow, context) -> TaskResult:
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"""Execute all actions for a task step, with state management and retries."""
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logger.info(f"Executing task: {task_step.description}")
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state = TaskExecutionState(task_step)
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retry_context = context
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max_retries = state.max_retries
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for attempt in range(max_retries):
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logger.info(f"Task execution attempt {attempt+1}/{max_retries}")
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actions = await self.generateTaskActions(task_step, workflow, previous_results=retry_context.previous_results, enhanced_context=retry_context)
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if not actions:
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logger.error("No actions defined for task step, aborting task execution")
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break
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action_results = []
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for action in actions:
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result = await self.handlingActions.executeSingleAction(action, workflow)
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action_results.append(result)
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if result.success:
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state.addSuccessfulAction(result)
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else:
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state.addFailedAction(result)
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review_result = await self.reviewTaskCompletion(task_step, actions, action_results, workflow)
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success = review_result.status == 'success'
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feedback = review_result.reason
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error = None if success else review_result.reason
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if success:
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logger.info(f"Task step '{task_step.description}' completed successfully")
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return TaskResult(
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taskId=task_step.id,
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status=TaskStatus.COMPLETED,
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success=True,
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feedback=feedback,
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error=None
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)
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elif review_result.status == 'retry' and state.canRetry():
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logger.warning(f"Task step '{task_step.description}' requires retry: {review_result.improvements}")
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state.incrementRetryCount()
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retry_context.retry_count = state.retry_count
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retry_context.improvements = review_result.improvements
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retry_context.previous_action_results = action_results
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retry_context.previous_review_result = review_result
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retry_context.is_regeneration = True
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retry_context.failure_patterns = state.getFailurePatterns()
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retry_context.failed_actions = state.failed_actions
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retry_context.successful_actions = state.successful_actions
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continue
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else:
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logger.error(f"Task step '{task_step.description}' failed after {attempt+1} attempts")
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return TaskResult(
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taskId=task_step.id,
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status=TaskStatus.FAILED,
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success=False,
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feedback=feedback,
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error=error
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)
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logger.error(f"Task step '{task_step.description}' failed after all retries")
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return TaskResult(
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taskId=task_step.id,
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status=TaskStatus.FAILED,
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success=False,
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feedback="Task failed after all retries.",
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error="Task failed after all retries."
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)
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async def reviewTaskCompletion(self, task_step, task_actions, action_results, workflow):
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try:
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review_context = ReviewContext(
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task_step=task_step,
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action_results=action_results,
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workflow=workflow,
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step_result={
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'successful_actions': sum(1 for result in action_results if result.success),
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'total_actions': len(action_results),
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'results': [result.data.get('result', '') for result in action_results if result.success],
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'errors': [result.error for result in action_results if not result.success]
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}
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)
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# Use promptFactory for review prompt
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prompt = await createResultReviewPrompt(self, review_context)
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response = await self.service.callAiTextAdvanced(prompt)
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review_dict = self.handlingActions.parseReviewResponse(response)
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review_dict.setdefault('status', 'unknown')
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review_dict.setdefault('reason', 'No reason provided')
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review_dict.setdefault('quality_score', 5)
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return ReviewResult(
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status=review_dict.get('status', 'unknown'),
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reason=review_dict.get('reason', 'No reason provided'),
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improvements=review_dict.get('improvements', []),
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quality_score=review_dict.get('quality_score', 5),
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missing_outputs=review_dict.get('missing_outputs', []),
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met_criteria=review_dict.get('met_criteria', []),
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unmet_criteria=review_dict.get('unmet_criteria', []),
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confidence=review_dict.get('confidence', 0.5)
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)
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except Exception as e:
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logger.error(f"Error in reviewTaskCompletion: {str(e)}")
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return ReviewResult(
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status='failed',
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reason=str(e),
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quality_score=0
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)
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async def prepareTaskHandover(self, task_step, task_actions, review_result, workflow):
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try:
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handover_data = {
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'task_id': task_step.id,
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'task_description': task_step.description,
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'actions': [action.to_dict() for action in task_actions],
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'review_result': review_result.to_dict() if hasattr(review_result, 'to_dict') else review_result,
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'workflow_id': workflow.id,
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'handover_time': datetime.now(UTC).isoformat()
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}
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logger.info(f"Prepared handover for task {task_step.id} in workflow {workflow.id}")
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return handover_data
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except Exception as e:
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logger.error(f"Error in prepareTaskHandover: {str(e)}")
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return {'error': str(e)}
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# --- Helper and validation methods (unchanged, but can be inlined or made private) ---
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def _getAvailableDocuments(self, workflow):
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documents = []
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for message in workflow.messages:
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for doc in message.documents:
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documents.append(doc.filename)
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return documents
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def _parseTaskPlanResponse(self, response: str) -> dict:
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try:
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json_start = response.find('{')
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json_end = response.rfind('}') + 1
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if json_start == -1 or json_end == 0:
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raise ValueError("No JSON found in response")
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json_str = response[json_start:json_end]
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task_plan = json.loads(json_str)
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if 'tasks' not in task_plan:
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raise ValueError("Task plan missing 'tasks' field")
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return task_plan
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except Exception as e:
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logger.error(f"Error parsing task plan response: {str(e)}")
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return {'tasks': []}
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def _validateTaskPlan(self, task_plan: Dict[str, Any]) -> bool:
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try:
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if not isinstance(task_plan, dict):
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return False
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if 'tasks' not in task_plan or not isinstance(task_plan['tasks'], list):
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return False
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task_ids = set()
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for task in task_plan['tasks']:
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if not isinstance(task, dict):
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return False
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required_fields = ['id', 'description', 'expected_outputs', 'success_criteria']
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if not all(field in task for field in required_fields):
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return False
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if task['id'] in task_ids:
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return False
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task_ids.add(task['id'])
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dependencies = task.get('dependencies', [])
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if not isinstance(dependencies, list):
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return False
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for dep in dependencies:
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if dep not in task_ids and dep != 'task_0':
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return False
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if 'ai_prompt' in task and not isinstance(task['ai_prompt'], str):
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return False
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return True
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except Exception as e:
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logger.error(f"Error validating task plan: {str(e)}")
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return False
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def _validateActions(self, actions: List[Dict[str, Any]], context) -> bool:
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try:
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if not isinstance(actions, list):
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logger.error("Actions must be a list")
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return False
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if len(actions) == 0:
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logger.warning("No actions generated")
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return False
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for i, action in enumerate(actions):
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if not isinstance(action, dict):
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logger.error(f"Action {i} must be a dictionary")
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return False
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required_fields = ['method', 'action', 'parameters', 'resultLabel']
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missing_fields = []
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for field in required_fields:
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if field not in action or not action[field]:
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missing_fields.append(field)
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if missing_fields:
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logger.error(f"Action {i} missing required fields: {missing_fields}")
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return False
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result_label = action.get('resultLabel', '')
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if not result_label.startswith('task'):
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logger.error(f"Action {i} result label must start with 'task': {result_label}")
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return False
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parameters = action.get('parameters', {})
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if not isinstance(parameters, dict):
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logger.error(f"Action {i} parameters must be a dictionary")
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return False
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logger.info(f"Successfully validated {len(actions)} actions")
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return True
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except Exception as e:
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logger.error(f"Error validating actions: {str(e)}")
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return False |