"""
app/config.py
─────────────
Central configuration — all env-driven settings live here.
"""

import os
from dotenv import load_dotenv

load_dotenv()


class Config:
    # ── LLM ───────────────────────────────────────────────────────────────
    GROQ_API_KEY: str       = os.getenv("GROQ_API_KEY", "")
    LLM_MODEL: str          = os.getenv("LLM_MODEL", "llama-3.3-70b-versatile")
    LLM_TEMPERATURE: float  = float(os.getenv("LLM_TEMPERATURE", "0"))

    # ── External APIs ─────────────────────────────────────────────────────
    WEATHER_API_KEY: str    = os.getenv("WEATHER_API_KEY", "")

    # ── Agent behaviour ───────────────────────────────────────────────────
    MAX_RETRIES: int        = int(os.getenv("MAX_RETRIES", "3"))
    EVAL_THRESHOLD: float   = float(os.getenv("EVAL_THRESHOLD", "0.6"))
    HITL_ENABLED: bool      = os.getenv("HITL_ENABLED", "true").lower() == "true"

    # ── UI mode ───────────────────────────────────────────────────────────
    # Set to true when running under Gradio — switches HITL from input()
    # to the exception-based pause/resume mechanism
    GRADIO_MODE: bool       = os.getenv("GRADIO_MODE", "false").lower() == "true"

    # ── RAG ───────────────────────────────────────────────────────────────
    EMBEDDING_MODEL: str    = "sentence-transformers/all-MiniLM-L6-v2"
    RAG_TOP_K: int          = 2

    # ── Guardrails ────────────────────────────────────────────────────────
    BLOCKED_PHRASES: list   = ["harm", "illegal", "violence", "hate"]


settings = Config()