"""
GAIA Multimodal Processor

This module integrates different processing components for handling multimodal content:
- Images (including chess positions)
- Audio files
- Video content
- Text (including reversed text and word puzzles)
- Data files and tables

It provides a unified interface for multimodal content detection and processing.
"""

import os
import re
import logging
import time
from typing import Dict, Any, List, Optional, Union
import traceback
from pathlib import Path

# Import specialized components
from src.gaia.agent.components.image_analyzer import ImageAnalyzer
from src.gaia.agent.components.audio_analyzer import AudioAnalyzer
from src.gaia.agent.components.video_analyzer import VideoAnalyzer
from src.gaia.agent.components.text_analyzer import TextAnalyzer
from src.gaia.agent.components.data_file_handler import DataFileHandler
from src.gaia.agent.components.document_analyzer import DocumentAnalyzer
from src.gaia.agent.components.table_processor import TableProcessor

# Set up logging
logger = logging.getLogger("gaia_agent.multimodal_processor")

class MultimodalProcessor:
    """
    Unified processor for multimodal content (images, audio, video, text, data files).
    
    This class orchestrates the detection and processing of different types of content
    using specialized component handlers.
    """
    
    def __init__(self, config: Optional[Dict[str, Any]] = None):
        """
        Initialize the multimodal processor with configuration.
        
        Args:
            config: Optional configuration dictionary for components
        """
        self.config = config or {}
        
        # Initialize specialized components
        self._initialize_components()
        
        # Cache for processed results
        self.processing_cache = {}
        
        logger.info("Multimodal processor initialized")
    
    def _initialize_components(self):
        """Initialize specialized processing components."""
        logger.info("Initializing multimodal processing components")
        
        try:
            # Image analyzer for images and chess positions
            self.image_analyzer = ImageAnalyzer()
            
            # Audio analyzer for sound files
            self.audio_analyzer = AudioAnalyzer()
            
            # Video analyzer for video content
            self.video_analyzer = VideoAnalyzer()
            
            # Text analyzer for text processing
            self.text_analyzer = TextAnalyzer()
            
            # Data file handler for structured data files
            self.data_file_handler = DataFileHandler()
            
            # Document analyzer for PDFs and other documents
            self.document_analyzer = DocumentAnalyzer()
            
            # Table processor for tabular data
            self.table_processor = TableProcessor()
            
            logger.info("All processing components initialized")
            
        except Exception as e:
            logger.error(f"Error initializing components: {str(e)}")
            logger.debug(traceback.format_exc())
            raise RuntimeError(f"Failed to initialize multimodal processing components: {str(e)}")
    
    def detect_content_type(self, question: str) -> str:
        """
        Detect the type of content mentioned in a question.
        
        Args:
            question: The question to analyze
            
        Returns:
            str: Content type identifier
        """
        question_lower = question.lower()
        
        # Check for image content
        if any(term in question_lower for term in ["image", "picture", "photo", "diagram", "chess position", "chess board"]):
            if "chess" in question_lower:
                return "chess_image"
            return "image"
        
        # Check for audio content
        if any(term in question_lower for term in ["audio", "sound", "mp3", "recording", "listen"]):
            return "audio"
        
        # Check for video content
        if any(term in question_lower for term in ["video", "youtube", "watch"]):
            # Extract YouTube URL if present
            if "youtube.com/watch" in question_lower or "youtu.be/" in question_lower:
                return "youtube_video"
            return "video"
        
        # Check for structured data
        if any(term in question_lower for term in ["table", "excel", "csv", "database", "spreadsheet"]):
            return "structured_data"
        
        # Check for document files
        if any(term in question_lower for term in ["pdf", "document", "article", "paper", "file"]):
            return "document"
        
        # Check for special text cases
        if any(term in question_lower for term in ["reversed", "backwards", "unscramble", "anagram"]):
            return "special_text"
        
        # Default to plain text
        return "text"
    
    def extract_content_url(self, question: str, content_type: str) -> Optional[str]:
        """
        Extract URL or file path for content from the question.
        
        Args:
            question: The question containing content references
            content_type: The detected content type
            
        Returns:
            str or None: Extracted URL or path, or None if not found
        """
        if content_type == "youtube_video":
            # Extract YouTube URL
            youtube_match = re.search(r'(https?://(?:www\.)?(?:youtube\.com/watch\?v=|youtu\.be/)[a-zA-Z0-9_-]+)', question)
            if youtube_match:
                return youtube_match.group(1)
        
        # Extract URLs for other content types
        url_match = re.search(r'(https?://\S+)', question)
        if url_match:
            return url_match.group(1)
        
        # Extract potential file paths
        file_path_match = re.search(r'([/\\]?(?:[a-zA-Z0-9_-]+[/\\])*[a-zA-Z0-9_-]+\.(?:jpg|png|gif|mp3|mp4|pdf|xlsx|csv))', question)
        if file_path_match:
            return file_path_match.group(1)
        
        return None
    
    def process_content(self, content_type: str, content_reference: str, question: str) -> Dict[str, Any]:
        """
        Process multimodal content using the appropriate specialized component.
        
        Args:
            content_type: The type of content to process
            content_reference: URL, file path, or content itself
            question: The question about the content
            
        Returns:
            dict: Processing results including answer and metadata
        """
        # Check cache first
        cache_key = f"{content_type}:{content_reference}:{question}"
        if cache_key in self.processing_cache:
            logger.info(f"Using cached result for {cache_key}")
            return self.processing_cache[cache_key]
        
        start_time = time.time()
        
        # Initialize result structure
        result = {
            "content_type": content_type,
            "reference": content_reference,
            "question": question,
            "answer": None,
            "success": False,
            "error": None,
            "metadata": {},
            "processing_time": 0
        }
        
        try:
            # Process based on content type
            if content_type in ["image", "chess_image"]:
                if os.path.exists(content_reference):
                    analysis = self.image_analyzer.process_image(content_reference, question)
                    result["metadata"] = analysis
                    result["answer"] = analysis.get("description", "")
                    result["success"] = analysis.get("success", False)
                    
                    # Handle chess-specific analysis
                    if content_type == "chess_image" and "position_evaluation" in analysis:
                        result["answer"] = f"Chess position analysis: {analysis['description']}"
            
            elif content_type == "audio":
                if os.path.exists(content_reference):
                    analysis = self.audio_analyzer.process_audio(content_reference, question)
                    result["metadata"] = analysis
                    result["answer"] = analysis.get("description", "")
                    if analysis.get("transcription"):
                        result["answer"] = f"Audio content: {analysis['transcription']}"
                    result["success"] = analysis.get("success", False)
            
            elif content_type in ["video", "youtube_video"]:
                analysis = self.video_analyzer.analyze_video_content(content_reference, question)
                result["metadata"] = analysis
                result["answer"] = analysis.get("content", "")
                result["success"] = analysis.get("success", False)
            
            elif content_type == "structured_data":
                if os.path.exists(content_reference):
                    analysis = self.data_file_handler.process_file(content_reference, question)
                    result["metadata"] = analysis
                    result["answer"] = analysis.get("summary", "")
                    result["success"] = analysis.get("success", False)
            
            elif content_type == "document":
                if os.path.exists(content_reference):
                    analysis = self.document_analyzer.process_document(content_reference, question)
                    result["metadata"] = analysis
                    result["answer"] = analysis.get("content", "")
                    result["success"] = analysis.get("success", False)
            
            elif content_type == "special_text":
                analysis = self.text_analyzer.process_text_question(question)
                result["metadata"] = analysis
                result["answer"] = analysis.get("answer", "")
                result["success"] = analysis.get("success", False)
            
            else:  # Default text processing
                analysis = self.text_analyzer.analyze_text(question)
                result["metadata"] = analysis
                result["answer"] = analysis.get("summary", "")
                result["success"] = analysis.get("success", False)
            
            # If we still don't have an answer but processing was successful
            if not result["answer"] and result["success"]:
                result["answer"] = "Analysis was successful, but no specific answer could be generated."
                
            # Add processing time
            result["processing_time"] = time.time() - start_time
            
            # Cache the result
            self.processing_cache[cache_key] = result
            
            return result
            
        except Exception as e:
            logger.error(f"Error processing {content_type} content: {str(e)}")
            logger.debug(traceback.format_exc())
            
            result["success"] = False
            result["error"] = str(e)
            result["processing_time"] = time.time() - start_time
            
            return result
    
    def process_question(self, question: str) -> Dict[str, Any]:
        """
        Process a question that may reference multimodal content.
        
        Args:
            question: The question to process
            
        Returns:
            dict: Processing results including answer and metadata
        """
        # Detect content type
        content_type = self.detect_content_type(question)
        logger.info(f"Detected content type: {content_type}")
        
        # Extract content reference if applicable
        content_reference = self.extract_content_url(question, content_type)
        logger.info(f"Extracted content reference: {content_reference}")
        
        # If we have a content reference, process it
        if content_reference:
            return self.process_content(content_type, content_reference, question)
        
        # For special text without explicit references
        if content_type == "special_text":
            return self.process_content(content_type, question, question)
        
        # If no content reference found, return a basic result
        return {
            "content_type": content_type,
            "reference": None,
            "question": question,
            "answer": None,
            "success": False,
            "error": "No content reference found in the question",
            "metadata": {},
            "processing_time": 0
        }