from pydantic_settings import BaseSettings
from pydantic import model_validator
from pathlib import Path
import os

# Anchored paths - independent of CWD
_api_root = Path(__file__).resolve().parent.parent       # .../gomag/api/
_project_root = _api_root.parent                         # .../gomag/
_env_path = _api_root / ".env"

class Settings(BaseSettings):
    # Oracle
    ORACLE_USER: str = "MARIUSM_AUTO"
    ORACLE_PASSWORD: str = "ROMFASTSOFT"
    ORACLE_DSN: str = "ROA_CENTRAL"
    INSTANTCLIENTPATH: str = ""
    FORCE_THIN_MODE: bool = False
    TNS_ADMIN: str = ""

    # SQLite
    SQLITE_DB_PATH: str = "data/import.db"

    # App
    APP_PORT: int = 5003
    LOG_LEVEL: str = "INFO"
    JSON_OUTPUT_DIR: str = "output"

    # SMTP (optional)
    SMTP_HOST: str = ""
    SMTP_PORT: int = 587
    SMTP_USER: str = ""
    SMTP_PASSWORD: str = ""
    SMTP_TO: str = ""

    # Auth (optional)
    API_USERNAME: str = ""
    API_PASSWORD: str = ""

    # ROA Import Settings
    ID_POL: int = 0
    ID_GESTIUNE: int = 0
    ID_SECTIE: int = 0

    @model_validator(mode="after")
    def resolve_paths(self):
        """Resolve relative paths against known roots, independent of CWD."""
        # SQLITE_DB_PATH: relative to api/ root
        if self.SQLITE_DB_PATH and not os.path.isabs(self.SQLITE_DB_PATH):
            self.SQLITE_DB_PATH = str(_api_root / self.SQLITE_DB_PATH)
        # JSON_OUTPUT_DIR: relative to project root
        if self.JSON_OUTPUT_DIR and not os.path.isabs(self.JSON_OUTPUT_DIR):
            self.JSON_OUTPUT_DIR = str(_project_root / self.JSON_OUTPUT_DIR)
        return self

    model_config = {"env_file": str(_env_path), "env_file_encoding": "utf-8", "extra": "ignore"}

settings = Settings()