"""
Placeholder Factory
Centralized placeholder extraction functions for all workflow modes.
Each function corresponds to a {{KEY:PLACEHOLDER_NAME}} in prompt templates.

NAMING CONVENTION:
- All functions follow pattern: extract{PlaceholderName}()
- Placeholder names are in UPPER_CASE with underscores
- Function names are in camelCase

MAPPING TABLE (keys → function) with usage [taskplan | actionplan | react]:
{{KEY:USER_PROMPT}}                    -> extractUserPrompt()                     [taskplan, actionplan, react]
{{KEY:USER_LANGUAGE}}                  -> extractUserLanguage()                   [actionplan, react]
{{KEY:LANGUAGE_USER_DETECTED}}         -> extractLanguageUserDetected()           [taskplan]
{{KEY:WORKFLOW_HISTORY}}               -> extractWorkflowHistory()                [taskplan, actionplan, react]
{{KEY:AVAILABLE_CONNECTIONS_INDEX}}    -> extractAvailableConnectionsIndex()      [actionplan, react]
{{KEY:AVAILABLE_CONNECTIONS_SUMMARY}}  -> extractAvailableConnectionsSummary()    []
{{KEY:AVAILABLE_DOCUMENTS_SUMMARY}}    -> extractAvailableDocumentsSummary()      [taskplan, actionplan, react]
{{KEY:AVAILABLE_DOCUMENTS_INDEX}}      -> extractAvailableDocumentsIndex()        [react]
{{KEY:AVAILABLE_METHODS}}              -> extractAvailableMethods()               [actionplan, react]
{{KEY:REVIEW_CONTENT}}                 -> extractReviewContent()                  [actionplan, react]
{{KEY:PREVIOUS_ACTION_RESULTS}}        -> extractPreviousActionResults()          [react]
{{KEY:LEARNINGS_AND_IMPROVEMENTS}}     -> extractLearningsAndImprovements()       [react]
{{KEY:LATEST_REFINEMENT_FEEDBACK}}     -> extractLatestRefinementFeedback()       [react]

Following placeholders are populated directly by prompt builders with according context in promptGenerationActionsReact module:
- ACTION_OBJECTIVE, 
- SELECTED_ACTION, 
- ACTION_SIGNATURE
"""

import json
import logging
from typing import Dict, Any, List
from modules.datamodels.datamodelChat import ChatDocument

logger = logging.getLogger(__name__)
from modules.workflows.processing.shared.methodDiscovery import (methods, discoverMethods)

def extractUserPrompt(context: Any) -> str:
    """Extract user prompt from context. Maps to {{KEY:USER_PROMPT}}.
    Prefer the cleaned intent stored on the services object if available via context.
    Fallback to the task_step objective.
    """
    try:
        services = getattr(context, 'services', None)

        # Determine raw user prompt from services or task_step
        rawPrompt = None
        if services and getattr(services, 'currentUserPrompt', None):
            rawPrompt = services.currentUserPrompt
        elif hasattr(context, 'task_step') and context.task_step:
            rawPrompt = context.task_step.objective or 'No request specified'
        else:
            rawPrompt = 'No request specified'

        # Prefer values computed at workflow start by WorkflowManager analyzer
        normalized = getattr(services, 'currentUserPromptNormalized', None) if services else None
        if normalized:
            return normalized
        return rawPrompt
    except Exception:
        # Robust fallback behavior
        if hasattr(context, 'task_step') and context.task_step:
            return context.task_step.objective or 'No request specified'
        return 'No request specified'

def extractWorkflowHistory(service: Any, context: Any) -> str:
    """Extract workflow history from context. Maps to {{KEY:WORKFLOW_HISTORY}}
    Reverse-chronological, enriched with message summaries and document labels.
    """
    try:
        history = getPreviousRoundContext(service, service.currentWorkflow)
        return history or "No previous workflow rounds available"
    except Exception as e:
        logger.error(f"Error getting workflow history: {str(e)}")
        return "No previous workflow rounds available"

def extractAvailableMethods(service: Any) -> str:
    """Extract available methods for action planning. Maps to {{KEY:AVAILABLE_METHODS}}"""
    try:
        # Get the methods dictionary directly from the global methods variable
        if not methods:
            discoverMethods(service)
        
        # Create a flat JSON format with compound action names for better AI parsing
        available_actions_json = {}
        for methodName, methodInfo in methods.items():
            # Convert MethodAi -> ai, MethodDocument -> document, etc.
            shortName = methodName.replace('Method', '').lower()
            
            for actionName, actionInfo in methodInfo['actions'].items():
                # Create compound action name: method.action
                compoundActionName = f"{shortName}.{actionName}"
                # Get the action description
                action_description = actionInfo.get('description', f"Execute {actionName} action")
                available_actions_json[compoundActionName] = action_description
        
        return json.dumps(available_actions_json, indent=2, ensure_ascii=False)
    except Exception as e:
        logger.error(f"Error extracting available methods: {str(e)}")
        return json.dumps({}, indent=2, ensure_ascii=False)

def extractUserLanguage(service: Any) -> str:
    """Extract user language from service. Maps to {{KEY:USER_LANGUAGE}}"""
    try:
        # Prefer detected language if available
        if service and getattr(service, 'currentUserLanguage', None):
            return service.currentUserLanguage
        return service.user.language if service and service.user else 'en'
    except Exception:
        return 'en'

# Normalization now happens centrally in WorkflowManager._sendFirstMessage; no AI call here.


def _computeMessageSummary(msg) -> str:
    """Create a concise summary for a ChatMessage with documents only.
    Fields: documentCount, roundNumber, documentsLabel, document names, message (full), success flag.
    """
    try:
        docs = getattr(msg, 'documents', []) or []
        if not docs:
            return ""  # Only summarize messages that contain documents
        document_count = len(docs)
        round_number = getattr(msg, 'roundNumber', None) or 0
        label = getattr(msg, 'documentsLabel', None) or ""
        # Collect ALL document names (supports ChatDocument objects and dicts)
        doc_names = []
        for d in docs:
            name = None
            try:
                if isinstance(d, dict):
                    # For dict objects, try multiple possible field names
                    name = d.get('fileName') or d.get('documentName') or d.get('name') or d.get('filename')
                else:
                    # For ChatDocument objects, use fileName field
                    name = getattr(d, 'fileName', None) or getattr(d, 'documentName', None) or getattr(d, 'name', None) or getattr(d, 'filename', None)
            except Exception:
                name = None
            doc_names.append(name or "(unnamed)")
        # Format document names in brackets
        if doc_names:
            names_part = f"({', '.join(doc_names)})"
        else:
            names_part = "(no documents)"
        
        # Don't truncate the message - show full content
        user_message = (getattr(msg, 'message', '') or '').strip().replace("\n", " ")
        # Read success from ChatMessage.success field
        success_flag = getattr(msg, 'success', None)
        success_text = "success=True" if success_flag is True else ("success=False" if success_flag is False else "success=Unknown")
        label_part = f" label='{label}'" if label else ""
        
        # Add learning/feedback if available
        learning_part = ""
        if hasattr(msg, 'summary') and msg.summary and 'learnings' in msg.summary.lower():
            learning_part = " | learnings available"
        
        return f"Round {round_number}: {document_count} docs {names_part}{label_part} | {success_text}{learning_part} | msg='{user_message}'"
    except Exception:
        return ""

def getMessageSummary(msg) -> str:
    """Return existing ChatMessage.summary or compute, set, and return it (documents only)."""
    try:
        if getattr(msg, 'summary', None):
            return msg.summary
        summary = _computeMessageSummary(msg)
        # Persist in-memory only; caller can store if desired
        if summary:
            try:
                setattr(msg, 'summary', summary)
            except Exception:
                pass
        return summary
    except Exception:
        return ""

def getPreviousRoundContext(services, workflow: Any) -> str:
    """Get enriched context:
    - Reverse-chronological ordering
    - Current round first (newest → oldest), then older rounds
    - Only messages with documents summarized
    - Include available documents snapshot at end
    """
    try:
        if not workflow:
            return "No previous round context available"

        lines: List[str] = []

        # Reverse-chronological, current round first
        try:
            msgs = getattr(workflow, 'messages', []) or []
            current_round = getattr(workflow, 'currentRound', None)
            current_round_msgs: List[Any] = []
            previous_round_msgs: List[Any] = []
            for m in msgs:
                if current_round is not None and getattr(m, 'roundNumber', None) == current_round:
                    current_round_msgs.append(m)
                else:
                    previous_round_msgs.append(m)

            for m in reversed(current_round_msgs):
                s = getMessageSummary(m)
                if s:
                    lines.append(f"- {s}")
            for m in reversed(previous_round_msgs):
                s = getMessageSummary(m)
                if s:
                    lines.append(f"- {s}")
        except Exception:
            pass

        # Include available documents snapshot at end
        try:
            if hasattr(services, 'workflow'):
                docs_index = services.workflow.getAvailableDocuments(workflow)
                if docs_index and docs_index != "No documents available":
                    doc_count = docs_index.count("docItem:")  # Only count actual documents, not document list labels
                    lines.append(f"Available documents: {doc_count}")
        except Exception:
            pass

        if not lines:
            return "No previous round context available"
        return "\n".join(lines)
    except Exception as e:
        logger.error(f"Error getting previous round context: {str(e)}")
        return "Error retrieving previous round context"

def extractReviewContent(context: Any) -> str:
    """Extract review content for result validation. Maps to {{KEY:REVIEW_CONTENT}}"""
    try:
        if hasattr(context, 'action_results') and context.action_results:
            # Build result summary
            result_summary = ""
            for i, result in enumerate(context.action_results):
                result_summary += f"\nRESULT {i+1}:\n"
                result_summary += f"  Success: {result.success}\n"
                if result.error:
                    result_summary += f"  Error: {result.error}\n"
                
                if result.documents:
                    result_summary += f"  Documents: {len(result.documents)} document(s)\n"
                    for doc in result.documents:
                        # Extract all available metadata without content
                        doc_metadata = {
                            "name": getattr(doc, 'fileName', None) or getattr(doc, 'documentName', 'Unknown'),
                            "mimeType": getattr(doc, 'mimeType', 'Unknown'),
                            "size": getattr(doc, 'size', 'Unknown'),
                            "created": getattr(doc, 'created', 'Unknown'),
                            "modified": getattr(doc, 'modified', 'Unknown'),
                            "typeGroup": getattr(doc, 'typeGroup', 'Unknown'),
                            "documentId": getattr(doc, 'documentId', 'Unknown'),
                            "reference": getattr(doc, 'reference', 'Unknown')
                        }
                        # Remove 'Unknown' values to keep it clean
                        doc_metadata = {k: v for k, v in doc_metadata.items() if v != 'Unknown'}
                        result_summary += f"    - {json.dumps(doc_metadata, indent=6, ensure_ascii=False)}\n"
                else:
                    result_summary += f"  Documents: None\n"
            
            return result_summary
        elif hasattr(context, 'observation') and context.observation:
            # For observation data, show full content but handle documents specially
            if isinstance(context.observation, dict):
                # Create a copy to modify
                obs_copy = context.observation.copy()
                
                # If there are previews with documents, show only metadata
                if 'previews' in obs_copy and isinstance(obs_copy['previews'], list):
                    for preview in obs_copy['previews']:
                        if isinstance(preview, dict) and 'snippet' in preview:
                            # Replace snippet with metadata indicator
                            preview['snippet'] = f"[Content: {len(preview.get('snippet', ''))} characters]"
                
                return json.dumps(obs_copy, indent=2, ensure_ascii=False)
            else:
                return json.dumps(context.observation, ensure_ascii=False)
        elif hasattr(context, 'step_result') and context.step_result and 'observation' in context.step_result:
            # For observation data in step_result, show full content but handle documents specially
            observation = context.step_result['observation']
            if isinstance(observation, dict):
                # Create a copy to modify
                obs_copy = observation.copy()
                
                # If there are previews with documents, show only metadata
                if 'previews' in obs_copy and isinstance(obs_copy['previews'], list):
                    for preview in obs_copy['previews']:
                        if isinstance(preview, dict) and 'snippet' in preview:
                            # Replace snippet with metadata indicator
                            preview['snippet'] = f"[Content: {len(preview.get('snippet', ''))} characters]"
                
                return json.dumps(obs_copy, indent=2, ensure_ascii=False)
            else:
                return json.dumps(observation, ensure_ascii=False)
        else:
            return "No review content available"
    except Exception as e:
        logger.error(f"Error extracting review content: {str(e)}")
        return "No review content available"

def extractPreviousActionResults(context: Any) -> str:
    """Extract previous action results for learning context. Maps to {{KEY:PREVIOUS_ACTION_RESULTS}}"""
    try:
        if not hasattr(context, 'previous_action_results') or not context.previous_action_results:
            return "No previous actions executed yet"
        
        results = []
        for i, result in enumerate(context.previous_action_results[-5:], 1):  # Last 5 results
            if hasattr(result, 'resultLabel') and hasattr(result, 'status'):
                status = "SUCCESS" if result.status == "completed" else "FAILED"
                results.append(f"Action {i}: {result.resultLabel} - {status}")
                if hasattr(result, 'error') and result.error:
                    results.append(f"  Error: {result.error}")
        
        return "\n".join(results) if results else "No previous actions executed yet"
    except Exception as e:
        logger.error(f"Error extracting previous action results: {str(e)}")
        return "No previous actions executed yet"

def extractLearningsAndImprovements(context: Any) -> str:
    """Extract learnings and improvements from previous actions. Maps to {{KEY:LEARNINGS_AND_IMPROVEMENTS}}"""
    try:
        learnings = []
        
        # Get improvements from context
        if hasattr(context, 'improvements') and context.improvements and isinstance(context.improvements, list):
            learnings.append("IMPROVEMENTS:")
            for improvement in context.improvements[-3:]:  # Last 3 improvements
                learnings.append(f"- {improvement}")
        
        # Get failure patterns
        if hasattr(context, 'failure_patterns') and context.failure_patterns and isinstance(context.failure_patterns, list):
            learnings.append("FAILURE PATTERNS TO AVOID:")
            for pattern in context.failure_patterns[-3:]:  # Last 3 patterns
                learnings.append(f"- {pattern}")
        
        # Get successful actions
        if hasattr(context, 'successful_actions') and context.successful_actions and isinstance(context.successful_actions, list):
            learnings.append("SUCCESSFUL APPROACHES:")
            for action in context.successful_actions[-3:]:  # Last 3 successful
                learnings.append(f"- {action}")
        
        return "\n".join(learnings) if learnings else "No learnings available yet"
    except Exception as e:
        logger.error(f"Error extracting learnings and improvements: {str(e)}")
        return "No learnings available yet"

def extractLatestRefinementFeedback(context: Any) -> str:
    """Extract the latest refinement feedback. Maps to {{KEY:LATEST_REFINEMENT_FEEDBACK}}"""
    try:
        if not hasattr(context, 'previous_review_result') or not context.previous_review_result or not isinstance(context.previous_review_result, list):
            return "No previous refinement feedback available"
        
        # Get the most recent refinement decision
        latest_decision = context.previous_review_result[-1]
        if not isinstance(latest_decision, dict):
            return "No previous refinement feedback available"
        
        feedback_parts = []
        
        # Add decision and reason
        decision = latest_decision.get('decision', 'unknown')
        reason = latest_decision.get('reason', 'No reason provided')
        feedback_parts.append(f"Latest Decision: {decision}")
        feedback_parts.append(f"Reason: {reason}")
        
        # Add any specific feedback or suggestions
        if 'feedback' in latest_decision:
            feedback_parts.append(f"Feedback: {latest_decision['feedback']}")
        
        if 'suggestions' in latest_decision:
            feedback_parts.append(f"Suggestions: {latest_decision['suggestions']}")
        
        return "\n".join(feedback_parts)
    except Exception as e:
        logger.error(f"Error extracting latest refinement feedback: {str(e)}")
        return "No previous refinement feedback available"

def extractAvailableDocumentsSummary(service: Any, context: Any) -> str:
    """Summary of available documents (count only)."""
    try:
        documents = service.workflow.getAvailableDocuments(service.currentWorkflow)
        if documents and documents != "No documents available":
            # Count only actual documents, not list labels
            doc_count = documents.count("docItem:")
            return f"{doc_count} documents available from previous tasks"
        return "No documents available"
    except Exception as e:
        logger.error(f"Error getting document summary: {str(e)}")
        return "No documents available"

def extractAvailableDocumentsIndex(service: Any, context: Any) -> str:
    """Index of available documents with detailed references for parameter generation."""
    try:
        return service.workflow.getAvailableDocuments(service.currentWorkflow)
    except Exception as e:
        logger.error(f"Error getting document index: {str(e)}")
        return "No documents available"

def extractAvailableConnectionsSummary(service: Any) -> str:
    """Summary of available connections (count only)."""
    try:
        connections = service.workflow.getConnectionReferenceList()
        if connections:
            return f"{len(connections)} connections available"
        return "No connections available"
    except Exception as e:
        logger.error(f"Error getting connection summary: {str(e)}")
        return "No connections available"

def extractAvailableConnectionsIndex(service: Any) -> str:
    """Index of available connections with detailed references for parameter generation."""
    try:
        connections = service.workflow.getConnectionReferenceList()
        if connections:
            return '\n'.join(f"- {conn}" for conn in connections)
        return "No connections available"
    except Exception as e:
        logger.error(f"Error getting connection index: {str(e)}")
        return "No connections available"

def extractLanguageUserDetected(context: Any) -> str:
    """Extract the detected user language from intent analysis or context."""
    try:
        # Try to get language from intent analysis if available
        if hasattr(context, 'intent_analysis') and context.intent_analysis:
            language = context.intent_analysis.get('languageUserDetected', '')
            if language and language != 'unknown':
                return language
        
        # Try to get language from workflow context
        if hasattr(context, 'workflow') and hasattr(context.workflow, 'intent_analysis'):
            language = context.workflow.intent_analysis.get('languageUserDetected', '') if context.workflow.intent_analysis else ''
            if language and language != 'unknown':
                return language
        
        # Try to get language from user service
        if hasattr(context, 'services') and hasattr(context.services, 'user') and hasattr(context.services.user, 'language'):
            return context.services.user.language
        
        # Default fallback
        return 'en'
    except Exception as e:
        logger.error(f"Error extracting user language: {str(e)}")
        return 'en'