rtu_linux_services/web-ui.service/web/static/js/page1.js

let cpuChart       = null;
let memChart       = null;
let diskChart      = null;
let sysStatusTimer = null;
let resizeHandler  = null;
let sysAbortController = null;

function getSystemInfo(){
  sysAbortController?.abort();
  sysAbortController = new AbortController();
 
  fetch("/api/system/info", {signal:sysAbortController.signal} )
  .then(r=>{
    if(!r.ok) throw new Error("HTTP "+r.status);
    return r.json();
  })
  .then(d=>{
    if(!cpuChart || !memChart || !diskChart){
        return;
    }

    cpuChart.setOption({
      graphic:[{
        type:"text",
        left:"center",
        top:"75%",
        style:{
          text:`${d.cpu_cores||"--"}核 ${d.cpu_freq||"--"}MHz  温度${d.cpu_temp||"--"}`,
          fill:"#aaa",
          fontSize:15
        }
      }],
      series:[{data:[{value:d.cpu_usage ?? 0}]}]
    });

    memChart.setOption({
      graphic:[{
        type:"text",
        left:"center",
        top:"75%",
        style:{
          text:`${d.mem_used||"--"} / ${d.mem_total||"--"}`,
          fill:"#aaa",
          fontSize:15
        }
      }],
      series:[{data:[{value:d.mem_percent ?? 0}]}]
    });

    diskChart.setOption({
      title:{
        text:`${d.disk_percent}%`,
        subtext:`${d.disk_used||"--"} / ${d.disk_total||"--"}`,
        left:"center",
        top:"38%",
        textStyle:{
          fontSize:38,
          fontWeight:"bold"
        },
        subtextStyle:{
          fontSize:15
        }
      },
      series:[{
        data:[
          {value:d.disk_percent ?? 0,name:"已使用"},
          {value:100-d.disk_percent,name:"剩余"}
        ]
      }]
    });
  })
  .catch(e=>{
    if(e.name !== "AbortError"){
      console.error("system info failed:",e);
    }
  });
}

function gaugeOption(){
  return {
    series:[{
      type:"gauge",
      radius:"95%",
      center:["50%","55%"],
      min:0,
      max:100,
      startAngle:210,
      endAngle:-30,
      axisLine:{
        lineStyle:{
          width:22
        }
      },
      progress:{
        show:true,
        width:22
      },
      pointer:{show:false},
      axisTick:{show:false},
      splitLine:{show:false},
      axisLabel:{show:false},
      detail:{
        fontSize:42,
        fontWeight:"bold",
        offsetCenter:[0,"0%"],
        formatter:"{value}%"
      },
      title:{show:false},
      data:[{value:0}]
    }]
  };
}

function getLoadInfo(){
  fetch("/api/system/loadAverage")
    .then(async r => {
      if (!r.ok) {
        throw new Error("HTTP " + r.status);
      }

      return r.json();
    })
    .then(data => {
      ["load1m","load5m","load15m","runQueue","bootTime","uptime"]
        .forEach(id => setText(id, data[id], "page1"));
    })
    .catch(e => {
      console.error("load info failed:", e);

      ["load1m","load5m","load15m","runQueue","bootTime","uptime"]
        .forEach(id => setText(id, null, "page1"));
    });
}

function getServiceInfo(){
  fetch("/api/system/serviceStatus")
    .then(r => {
      if (!r.ok) {
        throw new Error("HTTP " + r.status);
      }

      return r.json();
    })
    .then(data => {
      [
        "var1","var2","var3","var4","var5",
        "var6","var7","var8","var9",
        "var11","var22","var33","var44",
        "var55","var66","var77","var88"
      ].forEach(id => setText(id, data[id], "page1"));
    })
    .catch(e => {
      console.error("getAllServiceStatus() failed:", e);

      [
        "var1","var2","var3","var4","var5",
        "var6","var7","var8","var9",
        "var11","var22","var33","var44",
        "var55","var66","var77","var88"
      ].forEach(id => setText(id, null, "page1"));
    });
}

function startSysStatusRefresh(){
  if(sysStatusTimer) return;

  getSystemInfo();
  getLoadInfo();
  getServiceInfo();

  sysStatusTimer = setInterval(() => {
    getSystemInfo();
    getLoadInfo();
    getServiceInfo();
  }, 5000);
}

function stopSysStatusRefresh(){
  if(sysStatusTimer){
    clearInterval(sysStatusTimer);
    sysStatusTimer=null;
  }
}

function resizeSysCharts(){
  cpuChart?.resize();
  memChart?.resize();
  diskChart?.resize();
}

const serviceNames = {
  "yfkj-networkd.service":         "设备自动联网",
  "yfkj-timesyncd.service":        "系统时间同步",
  "yfkj-gnss.service":             "地理坐标定位",
  "yfkj-camera-capture.service":   "相机图像采集",
  "yfkj-sshd-mqtt-bridge.service": "远程运维通道",
  "yfkj-app-install.service":      "应用安装卸载",
  "yfkj-web-ui.service":           "统一配置管理",
  "yfkj-upgrade.service":          "开机自动升级",
};

function switchServiceVersion(service, action)
{
  let name = serviceNames[service] || service;

  let msg = action === "factory"
    ? `确认将【${name}】恢复到出厂版本吗？\n\n警告: 切换过程中服务会自动重启，请勿断开电源！`
    : `确认将【${name}】回退到上一版本吗？\n\n警告: 切换过程中服务会自动重启，请勿断开电源！`;

  if(!confirm(msg)){
    return;
  }

  let password = prompt("请输入操作密码：");
  if(password === null){
    return;
  }
  password = password.trim();

  fetch("/api/service/version/switch", {
    method:"POST",
    headers:{
      "Content-Type":"application/json"
    },
    body:JSON.stringify({
      service:service,
      action:action,
      password:password
    })
  })
  .then(r=>r.json())
  .then(d=>{
    alert(`【${name}】\n\n${d.status=="ok" ? "✅ 版本切换成功" : "❌ 版本切换失败：" + d.message}`);
  })
  .catch(e=>{
    alert(`【${name}】\n\n❌ 请求失败：${e.message}`);
  });
}

function switchAutoUpgrade(action)
{
  let msg = action === "enable"
    ? "确认要打开 【开机自动升级】 吗？"
    : "确认要关闭 【开机自动升级】 吗？";

  if(!confirm(msg)){
    return;
  }

  let password = prompt("请输入操作密码：");
  if(password === null){
    return;
  }
  password = password.trim();

  fetch("/api/upgrade/on-off", {
    method:"POST",
    headers:{
      "Content-Type":"application/json"
    },
    body:JSON.stringify({
      action:action,
      password:password
    })
  })
  .then(r=>r.json())
  .then(d=>{
    alert(`【开机自动升级】\n\n${d.status=="ok" ? (action=="enable" ? "✅ 已打开" : "✅ 已关闭") : "❌ 操作失败: " + d.message}`);
  })
  .catch(e=>{
    alert(`【开机自动升级】\n\n❌ 请求失败: ${e.message}`);
  });
}

function initChart(id, option)
{
  let dom=document.getElementById(id);
  if(!dom){
    return null;
  }

  let chart=echarts.init(dom);
  chart.setOption(option);

  return chart;
}

function initPage1(){
  cpuChart = initChart(
    "cpu-chart",
    gaugeOption()
  );

  memChart = initChart(
    "mem-chart",
    gaugeOption()
  );

  diskChart = initChart(
    "disk-chart",
    {
      title:
      {
        text:"0%",
        subtext:"-- / --",
        left:"center",
        top:"38%",
        textStyle:{
        fontSize:38,
        fontWeight:"bold"
        },
        subtextStyle:{
          fontSize:15
        }
      },
      series:[{
        type:"pie",
        radius:["65%","85%"],
        label:{show:false},
        data:[
          {value:0,name:"已使用"},
          {value:100,name:"剩余"}
        ]
      }]
    }
  );

  resizeHandler = resizeSysCharts;

  window.addEventListener(
    "resize",
    resizeHandler
  );

  waitChartResize();

  startSysStatusRefresh();
}

function waitChartResize(count=0){
  resizeSysCharts();

  let dom = document.getElementById("cpu-chart");
  if(dom && dom.clientWidth > 0 && dom.clientHeight > 0){
    return;
  }

  dom = document.getElementById("mem-chart");
  if(dom && dom.clientWidth > 0 && dom.clientHeight > 0){
    return;
  }

  dom = document.getElementById("disk-chart");
  if(dom && dom.clientWidth > 0 && dom.clientHeight > 0){
    return;
  }

  if(count < 50){
    setTimeout(()=>{
      waitChartResize(count + 1);
    },100);
  }
}

function exitPage1(){
  sysAbortController?.abort();
  sysAbortController=null;

  stopSysStatusRefresh();

  if(resizeHandler){
    window.removeEventListener(
      "resize",
      resizeHandler
    );
    resizeHandler=null;
  }

  cpuChart?.dispose();
  memChart?.dispose();
  diskChart?.dispose();

  cpuChart=null;
  memChart=null;
  diskChart=null;
}