refactor widget

src/widgets/glances/metrics/cpu.jsx

@@ -0,0 +1,91 @@
+import dynamic from "next/dynamic";
+import { useState, useEffect } from "react";
+import { useTranslation } from "next-i18next";
+
+import Error from "../components/error";
+import Container from "../components/container";
+import Block from "../components/block";
+
+import useWidgetAPI from "utils/proxy/use-widget-api";
+
+const Chart = dynamic(() => import("../components/chart"), { ssr: false });
+
+const pointsLimit = 15;
+
+export default function Component({ service }) {
+  const { t } = useTranslation();
+
+  const [dataPoints, setDataPoints] = useState(new Array(pointsLimit).fill({ value: 0 }, 0, pointsLimit));
+
+  const { data, error } = useWidgetAPI(service.widget, 'cpu', {
+    refreshInterval: 1000,
+  });
+
+  const { data: systemData, error: systemError } = useWidgetAPI(service.widget, 'system');
+
+  useEffect(() => {
+    if (data) {
+      setDataPoints((prevDataPoints) => {
+        const newDataPoints = [...prevDataPoints, { value: data.total }];
+          if (newDataPoints.length > pointsLimit) {
+              newDataPoints.shift();
+          }
+          return newDataPoints;
+      });
+    }
+  }, [data]);
+
+  if (error) {
+    return <Container><Error error={error} /></Container>;
+  }
+
+  if (!data) {
+    return <Container><Block position={{bottom: 2, left: 2}}>-</Block></Container>;
+  }
+
+  return (
+    <Container>
+      <Chart
+        dataPoints={dataPoints}
+        label={[t("resources.used")]}
+        formatter={(value) => t("common.number", {
+          value,
+          style: "unit",
+          unit: "percent",
+          maximumFractionDigits: 0,
+          })}
+      />
+
+      {systemData && !systemError && (
+        <Block position={{bottom: 3, left: 3}}>
+          {systemData.linux_distro && (
+            <div className="text-xs opacity-50">
+              {systemData.linux_distro}
+            </div>
+          )}
+          {systemData.os_version && (
+            <div className="text-xs opacity-50">
+              {systemData.os_version}
+            </div>
+          )}
+          {systemData.hostname && (
+            <div className="text-xs opacity-75">
+              {systemData.hostname}
+            </div>
+          )}
+        </Block>
+      )}
+
+      <Block position={{bottom: 3, right: 3}}>
+        <div className="text-xs font-bold opacity-75">
+            {t("common.number", {
+              value: data.total,
+              style: "unit",
+              unit: "percent",
+              maximumFractionDigits: 0,
+            })} {t("resources.used")}
+          </div>
+      </Block>
+    </Container>
+  );
+}