package com.zy.acs.conveyor.core.operation;

import com.zy.acs.common.utils.News;
import com.zy.acs.conveyor.core.properties.CtuOperationConfig;
import com.zy.acs.conveyor.core.properties.CtuServiceProperties;
import com.zy.acs.conveyor.core.properties.SystemProperties;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;

@Slf4j
@Component
public class ConveyorBackgroundService {

    @Autowired
    private ApplicationContext applicationContext;

    @Autowired
    private ConveyorOperationExecutor operationExecutor;

    @Autowired
    private CtuServiceProperties properties;

    private ScheduledExecutorService executorService;


    private long lastDbUpdateTime = 0;


    private static final int LOG_INTERVAL_MS = 300000;

    @PostConstruct
    public void init() {
        // 初始化线程池
        executorService = Executors.newSingleThreadScheduledExecutor(r -> {
            Thread thread = new Thread(r);
            thread.setName("cv-background-thread");
            //thread.setDaemon(true);
            return thread;
        });

        // 启动定时任务
        executorService.scheduleWithFixedDelay(this::processConveyorTasks,
                properties.getInitialDelay(),
                properties.getInterval(),
                TimeUnit.MILLISECONDS);
        News.info("输送线后台服务线程初始化完成");
    }

    private void processConveyorTasks() {
        // 系统运行状态判断
        if (!SystemProperties.WCS_RUNNING_STATUS.get()) {
            News.info("系统未运行或服务已停止，跳过输送线任务处理");
            return;
        }
        long currentTime = System.currentTimeMillis();
        if (currentTime - lastDbUpdateTime > LOG_INTERVAL_MS) {
            News.info("执行输送线操作");
            lastDbUpdateTime = currentTime;
        }

        // 执行配置的操作序列
        for (CtuOperationConfig config : properties.getOperations()) {
            try {
                operationExecutor.execute(config);
            } catch (Exception e) {
                News.error("输送线操作执行最终失败, type={}, error={}", config.getType(), e.getMessage());
                // 可选：发送告警、暂停调度等
            }
        }

    }

    @PreDestroy
    public void shutDown() {
        if (executorService != null && !executorService.isShutdown()) {
            News.info("正在关闭输送线后台服务线程...");
            executorService.shutdown();
            try {
                if (!executorService.awaitTermination(5, TimeUnit.SECONDS)) {
                    executorService.shutdownNow();
                }
            } catch (InterruptedException e) {
                executorService.shutdownNow();
                Thread.currentThread().interrupt();
            }
            News.info("输送线后台服务线程已关闭");
        }
    }
}