import os
from pathlib import Path

try:
    from dotenv import load_dotenv
except ImportError:
    load_dotenv = None


if load_dotenv is not None:
    load_dotenv()
else:
    env_path = Path.cwd() / ".env"
    if env_path.exists():
        for line in env_path.read_text(encoding="utf-8").splitlines():
            line = line.strip()
            if not line or line.startswith("#") or "=" not in line:
                continue
            key, value = line.split("=", 1)
            os.environ.setdefault(key.strip(), value.strip().strip('"').strip("'"))

_bias_model_env = os.getenv("NEWSLENS_BIAS_MODEL_PATH")

BASE_DIR = Path(__file__).resolve().parents[1]
DATA_DIR = Path(os.getenv("NEWSLENS_DATA_DIR", BASE_DIR / "data"))
CHROMA_DB_PATH = Path(os.getenv("NEWSLENS_CHROMA_DB_PATH", DATA_DIR / "chromadb"))
MODEL_DIR = Path(os.getenv("NEWSLENS_MODEL_DIR", DATA_DIR / "models"))
if _bias_model_env:
    BIAS_MODEL_PATH = _bias_model_env 
else:
    BIAS_MODEL_PATH = Path(MODEL_DIR / "bias_lora_20260503_010859")
HF_ENDPOINT = os.getenv("NEWSLENS_HF_ENDPOINT")
HF_TOKEN = os.getenv("HF_TOKEN")
NEWS_API_KEY = os.getenv("NEWSAPI_KEY")
API_BASE_URL = os.getenv("NEWSLENS_API_BASE_URL", "http://localhost:8000")