"""
FILE: app/core/ingestion/ingestion_utils.py
DESCRIPTION: Hilfswerkzeuge für JSON-Recovery, Typ-Registry und Konfigurations-Lookups.
             AUDIT v2.13.7: Dynamisierung von Cleanup-Patterns und Default-Typen (WP-14).
"""
import os
import json
import re
import yaml
from typing import Any, Optional, Dict

def extract_json_from_response(text: str, registry: Optional[dict] = None) -> Any:
    """
    Extrahiert JSON-Daten und bereinigt LLM-Steuerzeichen (v2.11.14 Logic).
    WP-14: Nutzt nun dynamische cleanup_patterns aus der Registry.
    """
    if not text or not isinstance(text, str): 
        return []
    
    # Fallback-Patterns für die Bereinigung
    patterns = ["<s>", "</s>", "[OUT]", "[/OUT]"]
    
    # Falls keine Registry übergeben wurde, versuchen wir sie zu laden
    reg = registry or load_type_registry()
    if reg:
        # Lade Patterns aus llm_settings (WP-14 Erweiterung)
        patterns = reg.get("llm_settings", {}).get("cleanup_patterns", patterns)
    
    clean = text
    for p in patterns:
        clean = clean.replace(p, "")
    
    clean = clean.strip()
    
    match = re.search(r"```(?:json)?\s*(.*?)\s*```", clean, re.DOTALL)
    payload = match.group(1) if match else clean
    
    try:
        return json.loads(payload.strip())
    except json.JSONDecodeError:
        # Recovery: Suche nach Liste
        start = payload.find('[')
        end = payload.rfind(']') + 1
        if start != -1 and end > start:
            try: return json.loads(payload[start:end])
            except: pass
        
        # Recovery: Suche nach Objekt
        start_obj = payload.find('{')
        end_obj = payload.rfind('}') + 1
        if start_obj != -1 and end_obj > start_obj:
            try: return json.loads(payload[start_obj:end_obj])
            except: pass
    return []

def load_type_registry(custom_path: Optional[str] = None) -> dict:
    """Lädt die types.yaml zur Steuerung der typ-spezifischen Ingestion."""
    from app.config import get_settings
    settings = get_settings()
    path = custom_path or settings.MINDNET_TYPES_FILE
    if not os.path.exists(path): return {}
    try:
        with open(path, "r", encoding="utf-8") as f: return yaml.safe_load(f) or {}
    except Exception: return {}

def resolve_note_type(registry: dict, requested: Optional[str]) -> str:
    """
    Bestimmt den finalen Notiz-Typ.
    WP-14: Fallback wird nun über ingestion_settings.default_note_type gesteuert.
    """
    types = registry.get("types", {})
    if requested and requested in types: 
        return requested
        
    # Dynamischer Fallback aus der Registry (Standard: 'concept')
    ingest_cfg = registry.get("ingestion_settings", {})
    return ingest_cfg.get("default_note_type", "concept") 

def get_chunk_config_by_profile(registry: dict, profile_name: str, note_type: str) -> Dict[str, Any]:
    """Holt die Chunker-Parameter für ein spezifisches Profil aus der Registry."""
    from app.core.chunking import get_chunk_config
    profiles = registry.get("chunking_profiles", {})
    if profile_name in profiles:
        cfg = profiles[profile_name].copy()
        if "overlap" in cfg and isinstance(cfg["overlap"], list): 
            cfg["overlap"] = tuple(cfg["overlap"])
        return cfg
    return get_chunk_config(note_type)