from __future__ import annotations

import os
from dataclasses import dataclass


def _env_bool(name: str, default: bool) -> bool:
    value = os.environ.get(name)
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on"}


@dataclass(frozen=True)
class PluginConfig:
    gateway_url: str = "http://127.0.0.1:1934"
    api_key: str = ""
    default_user_id: str = ""
    default_agent_id: str = ""
    default_workspace_id: str = ""
    auto_search: bool = True
    auto_append_episode: bool = True
    auto_commit_session: bool = False
    review_mode: bool = True
    timeout: int = 30

    @classmethod
    def from_env(cls) -> "PluginConfig":
        try:
            timeout_val = int(os.environ.get("MEMORY_GATEWAY_TIMEOUT", "30"))
        except ValueError:
            timeout_val = 30
            
        return cls(
            gateway_url=os.environ.get("MEMORY_GATEWAY_URL", cls.gateway_url).rstrip("/"),
            api_key=os.environ.get("MEMORY_GATEWAY_API_KEY", ""),
            default_user_id=os.environ.get("MEMORY_GATEWAY_DEFAULT_USER_ID", ""),
            default_agent_id=os.environ.get("MEMORY_GATEWAY_DEFAULT_AGENT_ID", ""),
            default_workspace_id=os.environ.get("MEMORY_GATEWAY_DEFAULT_WORKSPACE_ID", ""),
            auto_search=_env_bool("MEMORY_GATEWAY_AUTO_SEARCH", True),
            auto_append_episode=_env_bool("MEMORY_GATEWAY_AUTO_APPEND_EPISODE", True),
            auto_commit_session=_env_bool("MEMORY_GATEWAY_AUTO_COMMIT_SESSION", False),
            review_mode=_env_bool("MEMORY_GATEWAY_REVIEW_MODE", True),
            timeout=timeout_val,
        )


def load_config() -> PluginConfig:
    return PluginConfig.from_env()