"""EspoCRM Webhook - Document Delete

Empfängt Delete-Webhooks von EspoCRM für Documents.
Loggt detailliert alle Payload-Informationen für Analyse.
"""
import json
import datetime
from typing import Any
from motia import FlowContext, http, ApiRequest, ApiResponse


config = {
    "name": "EspoCRM Document Delete Webhook",
    "description": "Empfängt Delete-Webhooks von EspoCRM für Document Entities",
    "flows": ["espocrm-documents"],
    "triggers": [
        http("POST", "/api/espocrm/document/delete")
    ],
    "enqueues": ["espocrm.document.delete"],
}


async def handler(request: ApiRequest, ctx: FlowContext[Any]) -> ApiResponse:
    """
    Webhook handler for Document deletion in EspoCRM.
    
    Receives notifications when documents are deleted.
    Note: Bei Deletion haben wir ggf. nur die ID, keine vollständigen Entity-Daten.
    """
    try:
        payload = request.body or []
        
        # ═══════════════════════════════════════════════════════════════
        # DETAILLIERTES LOGGING FÜR ANALYSE
        # ═══════════════════════════════════════════════════════════════
        
        ctx.logger.info("=" * 80)
        ctx.logger.info("📥 EspoCRM DOCUMENT DELETE WEBHOOK EMPFANGEN")
        ctx.logger.info("=" * 80)
        
        # Log Request Headers
        ctx.logger.info("\n🔍 REQUEST HEADERS:")
        if hasattr(request, 'headers'):
            for key, value in request.headers.items():
                ctx.logger.info(f"   {key}: {value}")
        else:
            ctx.logger.info("   (keine Headers verfügbar)")
        
        # Log Payload Type & Structure
        ctx.logger.info(f"\n📦 PAYLOAD TYPE: {type(payload).__name__}")
        ctx.logger.info(f"📦 PAYLOAD LENGTH: {len(payload) if isinstance(payload, (list, dict)) else 'N/A'}")
        
        # Log Full Payload (pretty-printed)
        ctx.logger.info("\n📄 FULL PAYLOAD:")
        ctx.logger.info(json.dumps(payload, indent=2, ensure_ascii=False))
        
        # ═══════════════════════════════════════════════════════════════
        # PAYLOAD ANALYSE & ID EXTRAKTION
        # ═══════════════════════════════════════════════════════════════
        
        entity_ids = set()
        
        if isinstance(payload, list):
            ctx.logger.info(f"\n✅ Payload ist LIST mit {len(payload)} Einträgen")
            for idx, entity in enumerate(payload):
                if isinstance(entity, dict):
                    entity_id = entity.get('id')
                    if entity_id:
                        entity_ids.add(entity_id)
                        
                        ctx.logger.info(f"\n   🗑️  Document #{idx + 1}:")
                        ctx.logger.info(f"      ID: {entity_id}")
                        ctx.logger.info(f"      Verfügbare Felder: {', '.join(entity.keys())}")
                        
                        # Bei Delete haben wir oft nur minimale Daten
                        if 'name' in entity:
                            ctx.logger.info(f"      Name: {entity.get('name')}")
                        if 'deletedAt' in entity or 'deleted' in entity:
                            ctx.logger.info(f"      Deleted At: {entity.get('deletedAt', entity.get('deleted', 'N/A'))}")
                        
                        # xAI-relevante Felder (falls vorhanden)
                        xai_fields = {k: v for k, v in entity.items() 
                                     if 'xai' in k.lower() or 'collection' in k.lower()}
                        if xai_fields:
                            ctx.logger.info(f"      🤖 xAI-Felder: {json.dumps(xai_fields, ensure_ascii=False)}")
                
        elif isinstance(payload, dict):
            ctx.logger.info("\n✅ Payload ist SINGLE DICT")
            entity_id = payload.get('id')
            if entity_id:
                entity_ids.add(entity_id)
                
                ctx.logger.info(f"\n   🗑️  Document:")
                ctx.logger.info(f"      ID: {entity_id}")
                ctx.logger.info(f"      Verfügbare Felder: {', '.join(payload.keys())}")
                
                if 'name' in payload:
                    ctx.logger.info(f"      Name: {payload.get('name')}")
                if 'deletedAt' in payload or 'deleted' in payload:
                    ctx.logger.info(f"      Deleted At: {payload.get('deletedAt', payload.get('deleted', 'N/A'))}")
                
                # xAI-relevante Felder
                xai_fields = {k: v for k, v in payload.items() 
                             if 'xai' in k.lower() or 'collection' in k.lower()}
                if xai_fields:
                    ctx.logger.info(f"      🤖 xAI-Felder: {json.dumps(xai_fields, ensure_ascii=False)}")
        else:
            ctx.logger.warning(f"⚠️  Unerwarteter Payload-Typ: {type(payload)}")
        
        # ═══════════════════════════════════════════════════════════════
        # QUEUE EVENTS EMITTIEREN
        # ═══════════════════════════════════════════════════════════════
        
        ctx.logger.info("\n" + "=" * 80)
        ctx.logger.info(f"📊 ZUSAMMENFASSUNG: {len(entity_ids)} Document(s) gefunden")
        ctx.logger.info("=" * 80)
        
        if not entity_ids:
            ctx.logger.warning("⚠️  Keine Document-IDs im Payload gefunden!")
            return ApiResponse(
                status=200,
                body={
                    'status': 'received',
                    'action': 'delete',
                    'ids_count': 0,
                    'warning': 'No document IDs found in payload'
                }
            )
        
        # Emit events für Queue-Processing
        for entity_id in entity_ids:
            await ctx.enqueue({
                'topic': 'espocrm.document.delete',
                'data': {
                    'entity_id': entity_id,
                    'action': 'delete',
                    'source': 'webhook',
                    'timestamp': datetime.datetime.now().isoformat()
                }
            })
            ctx.logger.info(f"✅ Event emittiert: espocrm.document.delete für ID {entity_id}")
        
        ctx.logger.info("\n" + "=" * 80)
        ctx.logger.info(f"✅ WEBHOOK VERARBEITUNG ABGESCHLOSSEN")
        ctx.logger.info("=" * 80)
        
        return ApiResponse(
            status=200,
            body={
                'status': 'received',
                'action': 'delete',
                'ids_count': len(entity_ids),
                'document_ids': list(entity_ids)
            }
        )
    
    except Exception as e:
        ctx.logger.error("=" * 80)
        ctx.logger.error(f"❌ FEHLER beim Verarbeiten des Document Delete Webhooks")
        ctx.logger.error("=" * 80)
        ctx.logger.error(f"Error Type: {type(e).__name__}")
        ctx.logger.error(f"Error Message: {str(e)}")
        
        import traceback
        ctx.logger.error(f"Stack Trace:\n{traceback.format_exc()}")
        
        return ApiResponse(
            status=500,
            body={
                'error': 'Internal server error',
                'error_type': type(e).__name__,
                'details': str(e)
            }
        )