"""Configuration management for Term Flow."""

import os
from pathlib import Path
from typing import Optional

import yaml


class Config:
    """Configuration manager for Term Flow."""

    def __init__(self):
        self._config_dir = Path(os.environ.get("TERMFLOW_HOME", Path.home() / ".termflow"))
        self._config_dir.mkdir(parents=True, exist_ok=True)
        self._db_path = os.environ.get(
            "TERMFLOW_DB",
            str(self._config_dir / "sessions.db")
        )
        self._git_cache = os.environ.get(
            "TERMFLOW_GIT_CACHE",
            str(self._config_dir / "git_cache")
        )
        self._default_style = os.environ.get("TERMFLOW_STYLE", "detailed")

    @property
    def config_dir(self) -> Path:
        return self._config_dir

    @property
    def db_path(self) -> str:
        return self._db_path

    @property
    def git_cache(self) -> str:
        return self._git_cache

    @property
    def default_style(self) -> str:
        return self._default_style

    def get_session_db_path(self) -> str:
        Path(self._db_path).parent.mkdir(parents=True, exist_ok=True)
        return self._db_path

    def get_git_cache_dir(self) -> str:
        Path(self._git_cache).mkdir(parents=True, exist_ok=True)
        return self._git_cache


def get_config() -> Config:
    """Get the current configuration."""
    return Config()