package com.tuoheng.status.machine.service;

import com.tuoheng.status.machine.events.CoverEvent;
import com.tuoheng.status.machine.status.CoverState;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.config.StateMachineFactory;
import org.springframework.stereotype.Component;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * 舱门状态机管理器
 */
@Component
public class CoverMachineService {

    @Autowired
    StateMachineFactory<CoverState, CoverEvent> coverStateMachineFactory;

    private final Map<String, StateMachine<CoverState, CoverEvent>> stateMachineMap = new ConcurrentHashMap<>();

    public StateMachine<CoverState, CoverEvent> getOrCreateStateMachine(String airportSn) {
        return stateMachineMap.computeIfAbsent(airportSn, id -> {
            StateMachine<CoverState, CoverEvent> stateMachine = coverStateMachineFactory.getStateMachine(id);
            stateMachine.start();
            System.out.println("创建并启动舱门状态机: " + id);
            return stateMachine;
        });
    }

    public CoverState getCurrentState(String airportSn) {
        StateMachine<CoverState, CoverEvent> stateMachine = stateMachineMap.get(airportSn);
        if (stateMachine == null) {
            return null;
        }
        return stateMachine.getState().getId();
    }

    public boolean sendEvent(String airportSn, CoverEvent event) {
        StateMachine<CoverState, CoverEvent> stateMachine = getOrCreateStateMachine(airportSn);
        boolean result = stateMachine.sendEvent(event);

        if (result) {
            System.out.println(String.format("舱门事件发送成功 - 机巢: %s, 事件: %s, 当前状态: %s",
                    airportSn, event, getCurrentState(airportSn)));
        } else {
            System.out.println(String.format("舱门事件发送失败 - 机巢: %s, 事件: %s, 当前状态: %s",
                    airportSn, event, getCurrentState(airportSn)));
        }

        return result;
    }

    public boolean isInState(String airportSn, CoverState state) {
        StateMachine<CoverState, CoverEvent> stateMachine = stateMachineMap.get(airportSn);
        if (stateMachine == null) {
            return false;
        }
        return stateMachine.getState().getId() == state;
    }

    public void removeStateMachine(String airportSn) {
        StateMachine<CoverState, CoverEvent> stateMachine = stateMachineMap.remove(airportSn);
        if (stateMachine != null) {
            stateMachine.stop();
            System.out.println("停止并移除舱门状态机: " + airportSn);
        }
    }
}