"""AtoCore configuration via environment variables."""

from pathlib import Path

from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    debug: bool = False
    data_dir: Path = Path("./data")
    host: str = "127.0.0.1"
    port: int = 8100

    # Embedding
    embedding_model: str = (
        "sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2"
    )

    # Chunking
    chunk_max_size: int = 800
    chunk_overlap: int = 100
    chunk_min_size: int = 50

    # Context
    context_budget: int = 3000
    context_top_k: int = 15

    model_config = {"env_prefix": "ATOCORE_"}

    @property
    def db_path(self) -> Path:
        return self.data_dir / "atocore.db"

    @property
    def chroma_path(self) -> Path:
        return self.data_dir / "chroma"


settings = Settings()