from functools import lru_cache
from pathlib import Path

import yaml
from pydantic import BaseModel
from pydantic_settings import BaseSettings, SettingsConfigDict


class AppConfig(BaseModel):
  host: str = "127.0.0.1"
  port: int = 8000
  reload: bool = True


class GitConfig(BaseModel):
  path: Path = Path("/opt/repo/sample")
  url: str = "ssh://git@hattori.ztsh.eu:29418/paas/heimdall.git"
  branch: str = "master"
  remote: str = "origin"


class KeePassConfig(BaseModel):
  file: str = "database.kdbx"
  secret: Path | str = "/run/secrets/kp_secret"


class Settings(BaseSettings):
  model_config = SettingsConfigDict(env_prefix="KARL_", env_nested_delimiter="__")
  app: AppConfig = AppConfig()
  git: GitConfig = GitConfig()
  kp: KeePassConfig = KeePassConfig()

  @classmethod
  def from_yaml(cls, path: Path | str = "config/config.yaml") -> "Settings":
    p = Path(path)
    data = {}
    if p.exists():
      with p.open("r", encoding="utf-8") as fh:
        data = yaml.safe_load(fh) or {}
    return cls(**data)


@lru_cache
def get_settings() -> Settings:
  return Settings.from_yaml()