from __future__ import annotations

from dataclasses import dataclass
from typing import Dict, Any

@dataclass
class ExternalState:
    """
    Represents an external environment state.
    """
    environment: Dict[str, Any]

class EnvironmentBridge:
    """Syncs Lucidia’s internal state to an external environment and vice versa."""

    def __init__(self) -> None:
        self.last_sync: ExternalState | None = None

    def pull(self) -> ExternalState:
        """
        Placeholder: retrieve environment state from outside.
        Currently returns an empty state and stores it as last_sync.
        """
        state = ExternalState(environment={})
        self.last_sync = state
        return state

    def push(self, state: ExternalState) -> None:
        """
        Placeholder: send internal state outward.
        Stores the provided state as last_sync.
        """
        self.last_sync = state

if __name__ == "__main__":
    bridge = EnvironmentBridge()
    s = bridge.pull()
    bridge.push(ExternalState({"temp": 22}))
    print(s, bridge.last_sync)