from __future__ import annotations

import os
from dataclasses import dataclass


@dataclass(frozen=True)
class Settings:
    ollama_host: str = os.getenv("OLLAMA_HOST", "http://localhost:11434")
    base_model: str = os.getenv("BASE_MODEL", "qwen2.5:7b-instruct")
    boost_model: str = os.getenv("BOOST_MODEL", "qwen2.5:14b-instruct")
    english_model: str = os.getenv("ENGLISH_MODEL", "llama3:8b-instruct")
    english_ratio_threshold: float = float(os.getenv("ENGLISH_RATIO_THRESHOLD", "0.65"))
    embedding_model: str = os.getenv("EMBEDDING_MODEL", "nomic-embed-text")
    index_path: str = os.getenv("INDEX_PATH", "data/index.jsonl")
    output_dir: str = os.getenv("OUTPUT_DIR", "outputs")

    # Optional export targets (e.g., Synology NAS shares)
    export_html_dir: str = os.getenv("EXPORT_HTML_DIR", "")
    export_upload_dir: str = os.getenv("EXPORT_UPLOAD_DIR", "")

    # Paperless (user will provide API details)
    paperless_base_url: str = os.getenv("PAPERLESS_BASE_URL", "")
    paperless_token: str = os.getenv("PAPERLESS_TOKEN", "")


settings = Settings()