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package tech.powerjob.server.solon.controller.response;

import lombok.Data;
import lombok.NoArgsConstructor;
import tech.powerjob.common.model.SystemMetrics;
import tech.powerjob.common.utils.CommonUtils;
import tech.powerjob.server.solon.common.module.WorkerInfo;

import java.text.DecimalFormat;

/**
 * Worker机器状态
 *
 * @author tjq
 * @since 2020/4/14
 */
@Data
@NoArgsConstructor
public class WorkerStatusVO {

  private String address;
  private String cpuLoad;
  private String memoryLoad;
  private String diskLoad;

  private String protocol;
  private String tag;
  private String lastActiveTime;

  private Integer lightTaskTrackerNum;

  private Integer heavyTaskTrackerNum;

  private long lastOverloadTime;

  private boolean overloading;

  /**
   * 1 -> 健康，绿色，2 -> 一般，橙色，3 -> 糟糕，红色，9999 -> 非在线机器
   */
  private int status;

  /**
   * 12.3%(4 cores)
   */
  private static final String CPU_FORMAT = "%s / %s cores";
  /**
   * 27.7%(2.9/8.0 GB)
   */
  private static final String OTHER_FORMAT = "%s%%（%s / %s GB）";
  private static final DecimalFormat df = new DecimalFormat("#.#");

  private static final double THRESHOLD = 0.8;

  public WorkerStatusVO(WorkerInfo workerInfo) {

    SystemMetrics systemMetrics = workerInfo.getSystemMetrics();

    this.status = 1;
    this.address = workerInfo.getAddress();
    this.cpuLoad = String.format(CPU_FORMAT, df.format(systemMetrics.getCpuLoad()), systemMetrics.getCpuProcessors());
    if (systemMetrics.getCpuLoad() > systemMetrics.getCpuProcessors() * THRESHOLD) {
      this.status++;
    }

    String menL = df.format(systemMetrics.getJvmMemoryUsage() * 100);
    String menUsed = df.format(systemMetrics.getJvmUsedMemory());
    String menMax = df.format(systemMetrics.getJvmMaxMemory());
    this.memoryLoad = String.format(OTHER_FORMAT, menL, menUsed, menMax);
    if (systemMetrics.getJvmMemoryUsage() > THRESHOLD) {
      this.status++;
    }

    String diskL = df.format(systemMetrics.getDiskUsage() * 100);
    String diskUsed = df.format(systemMetrics.getDiskUsed());
    String diskMax = df.format(systemMetrics.getDiskTotal());
    this.diskLoad = String.format(OTHER_FORMAT, diskL, diskUsed, diskMax);
    if (systemMetrics.getDiskUsage() > THRESHOLD) {
      this.status++;
    }

    if (workerInfo.overload()) {
      // 超载的情况直接置为 3
      this.status = 3;
    }

    if (workerInfo.timeout()) {
      this.status = 9999;
    }

    this.protocol = workerInfo.getProtocol();
    this.tag = CommonUtils.formatString(workerInfo.getTag());
    this.lastActiveTime = CommonUtils.formatTime(workerInfo.getLastActiveTime());
    this.lightTaskTrackerNum = workerInfo.getLightTaskTrackerNum();
    this.heavyTaskTrackerNum = workerInfo.getHeavyTaskTrackerNum();
    this.lastOverloadTime = workerInfo.getLastOverloadTime();
    this.overloading = workerInfo.isOverloading();
  }
}