mindnet/app/config.py

"""
FILE: app/config.py
DESCRIPTION: Zentrale Pydantic-Konfiguration. Enthält alle Parameter für Qdrant, 
             lokale Embeddings, Ollama, Google GenAI und OpenRouter.
VERSION: 0.6.0 (WP-20 Full Hybrid Integration)
STATUS: Active
"""
from __future__ import annotations
import os
from functools import lru_cache
from pathlib import Path

class Settings:
    # --- Qdrant Datenbank ---
    QDRANT_URL: str = os.getenv("QDRANT_URL", "http://127.0.0.1:6333")
    QDRANT_API_KEY: str | None = os.getenv("QDRANT_API_KEY")
    COLLECTION_PREFIX: str = os.getenv("MINDNET_PREFIX", "mindnet")
    VECTOR_SIZE: int = int(os.getenv("MINDNET_VECTOR_SIZE", "384"))
    DISTANCE: str = os.getenv("MINDNET_DISTANCE", "Cosine")
    
    # --- Lokale Embeddings ---
    MODEL_NAME: str = os.getenv("MINDNET_MODEL", "sentence-transformers/all-MiniLM-L6-v2")
    
    # --- WP-20 Cloud Hybrid Mode (Google GenAI & OpenRouter) ---
    # Erlaubt: "ollama" | "gemini" | "openrouter"
    MINDNET_LLM_PROVIDER: str = os.getenv("MINDNET_LLM_PROVIDER", "ollama").lower()
    
    # Google AI Studio (Direkt)
    GOOGLE_API_KEY: str | None = os.getenv("GOOGLE_API_KEY")
    GEMINI_MODEL: str = os.getenv("MINDNET_GEMINI_MODEL", "gemini-1.5-flash")
    GEMMA_MODEL: str = os.getenv("MINDNET_GEMMA_MODEL", "gemma2-9b-it") # Für Ingestion-Speed
    
    # OpenRouter Integration
    OPENROUTER_API_KEY: str | None = os.getenv("OPENROUTER_API_KEY")
    OPENROUTER_MODEL: str = os.getenv("OPENROUTER_MODEL", "google/gemma-2-9b-it:free")
    
    LLM_FALLBACK_ENABLED: bool = os.getenv("MINDNET_LLM_FALLBACK", "true").lower() == "true"
    
    # --- WP-05 Lokales LLM (Ollama) ---
    OLLAMA_URL: str = os.getenv("MINDNET_OLLAMA_URL", "http://127.0.0.1:11434")
    LLM_MODEL: str = os.getenv("MINDNET_LLM_MODEL", "phi3:mini") 
    PROMPTS_PATH: str = os.getenv("MINDNET_PROMPTS_PATH", "config/prompts.yaml")
    
    # --- WP-06 / WP-14 Performance & Last-Steuerung ---
    LLM_TIMEOUT: float = float(os.getenv("MINDNET_LLM_TIMEOUT", "120.0"))
    DECISION_CONFIG_PATH: str = os.getenv("MINDNET_DECISION_CONFIG", "config/decision_engine.yaml")
    BACKGROUND_LIMIT: int = int(os.getenv("MINDNET_LLM_BACKGROUND_LIMIT", "2"))

    # --- System-Pfade ---
    DEBUG: bool = os.getenv("DEBUG", "false").lower() == "true"
    MINDNET_VAULT_ROOT: str = os.getenv("MINDNET_VAULT_ROOT", "./vault")
    MINDNET_TYPES_FILE: str = os.getenv("MINDNET_TYPES_FILE", "config/types.yaml")
    
    # --- WP-04 Retriever Gewichte (Semantik vs. Graph) ---
    RETRIEVER_W_SEM: float = float(os.getenv("MINDNET_WP04_W_SEM", "0.70"))
    RETRIEVER_W_EDGE: float = float(os.getenv("MINDNET_WP04_W_EDGE", "0.25"))
    RETRIEVER_W_CENT: float = float(os.getenv("MINDNET_WP04_W_CENT", "0.05"))
    RETRIEVER_TOP_K: int = int(os.getenv("MINDNET_WP04_TOP_K", "10"))
    RETRIEVER_EXPAND_DEPTH: int = int(os.getenv("MINDNET_WP04_EXPAND_DEPTH", "1"))
    RETRIEVER_EDGE_TYPES: str = os.getenv("MINDNET_WP04_EDGE_TYPES", "references,belongs_to,prev,next")

@lru_cache
def get_settings() -> Settings:
    return Settings()