"""
JSON renderer for report generation.
"""

from .rendererBaseTemplate import BaseRenderer
from typing import Dict, Any, Tuple, List
import json

class RendererJson(BaseRenderer):
    """Renders content to JSON format with format-specific extraction."""
    
    @classmethod
    def get_supported_formats(cls) -> List[str]:
        """Return supported JSON formats."""
        return ['json']
    
    @classmethod
    def get_format_aliases(cls) -> List[str]:
        """Return format aliases."""
        return ['data']
    
    @classmethod
    def get_priority(cls) -> int:
        """Return priority for JSON renderer."""
        return 80
    
    async def render(self, extracted_content: Dict[str, Any], title: str, user_prompt: str = None, ai_service=None) -> Tuple[str, str]:
        """Render extracted JSON content to JSON format."""
        try:
            # The extracted content should already be JSON from the AI
            # Just validate and format it
            json_content = self._clean_json_content(extracted_content, title)
            
            return json_content, "application/json"
            
        except Exception as e:
            self.logger.error(f"Error rendering JSON: {str(e)}")
            # Return minimal JSON fallback
            fallback_data = {
                "title": title,
                "sections": [{"content_type": "paragraph", "elements": [{"text": f"Error rendering report: {str(e)}"}]}],
                "metadata": {"error": str(e)}
            }
            return json.dumps(fallback_data, indent=2), "application/json"
    
    def _clean_json_content(self, content: Dict[str, Any], title: str) -> str:
        """Clean and validate JSON content from AI."""
        try:
            # Validate JSON structure
            if not isinstance(content, dict):
                raise ValueError("Content must be a dictionary")
            
            # Ensure it has the expected structure
            if "sections" not in content:
                # Convert old format to new format
                content = {
                    "sections": [{"content_type": "paragraph", "elements": [{"text": str(content)}]}],
                    "metadata": {"title": title}
                }
            
            # Ensure metadata exists
            if "metadata" not in content:
                content["metadata"] = {}
            
            # Set title in metadata if not present
            if "title" not in content["metadata"]:
                content["metadata"]["title"] = title
            
            # Re-format with proper indentation
            return json.dumps(content, indent=2, ensure_ascii=False)
            
        except Exception as e:
            self.logger.warning(f"Error cleaning JSON content: {str(e)}")
            # Return minimal valid JSON
            fallback_data = {
                "sections": [{"content_type": "paragraph", "elements": [{"text": str(content)}]}],
                "metadata": {"title": title, "error": str(e)}
            }
            return json.dumps(fallback_data, indent=2, ensure_ascii=False)