longhorn support

* longhorn widget for showing storage stats as "disks"

src/components/widgets/longhorn/longhorn.jsx

@@ -0,0 +1,57 @@
+import useSWR from "swr";
+import { BiError } from "react-icons/bi";
+import { i18n, useTranslation } from "next-i18next";
+
+import Node from "./node";
+
+export default function Longhorn({ options }) {
+  const { expanded, total, labels, include, nodes } = options;
+  const { t } = useTranslation();
+  const { data, error } = useSWR(`/api/widgets/longhorn`, {
+    refreshInterval: 1500
+  });
+
+  if (error || data?.error) {
+    return (
+      <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+        <BiError className="text-theme-800 dark:text-theme-200 w-5 h-5" />
+        <div className="flex flex-col ml-3 text-left">
+          <span className="text-theme-800 dark:text-theme-200 text-xs">{t("widget.api_error")}</span>
+        </div>
+      </div>
+    );
+  }
+
+  if (!data) {
+    return (
+      <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+        <div className="flex flex-row self-center flex-wrap justify-between" />
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex flex-col max-w:full sm:basis-auto self-center grow-0 flex-wrap">
+      <div className="flex flex-row self-center flex-wrap justify-between">
+        {data.nodes
+          .filter((node) => {
+            if (node.id === 'total' && total) {
+              return true;
+            }
+            if (!nodes) {
+              return false;
+            }
+            if (include && !include.includes(node.id)) {
+              return false;
+            }
+            return true;
+          })
+          .map((node) =>
+            <div key={node.id}>
+              <Node data={{ node }} expanded={expanded} labels={labels} />
+            </div>
+          )}
+      </div>
+    </div>
+  );
+}

src/components/widgets/longhorn/node.jsx

@@ -0,0 +1,32 @@
+import { FiHardDrive } from "react-icons/fi";
+import { useTranslation } from "next-i18next";
+
+import UsageBar from "../resources/usage-bar";
+
+export default function Node({ data, expanded, labels }) {
+  const { t } = useTranslation();
+
+  return (
+    <>
+      <div className="flex-none flex flex-row items-center mr-3 py-1.5">
+        <FiHardDrive className="text-theme-800 dark:text-theme-200 w-5 h-5" />
+        <div className="flex flex-col ml-3 text-left min-w-[85px]">
+        <span className="text-theme-800 dark:text-theme-200 text-xs flex flex-row justify-between">
+          <div className="pl-0.5">{t("common.bytes", { value: data.node.available })}</div>
+          <div className="pr-1">{t("resources.free")}</div>
+        </span>
+          {expanded && (
+            <span className="text-theme-800 dark:text-theme-200 text-xs flex flex-row justify-between">
+            <div className="pl-0.5">{t("common.bytes", { value: data.node.maximum })}</div>
+            <div className="pr-1">{t("resources.total")}</div>
+          </span>
+          )}
+          <UsageBar percent={Math.round((data.node.available / data.node.maximum) * 100)} />
+        </div>
+      </div>
+      {labels && (
+        <div className="ml-6 pt-1 text-center text-theme-800 dark:text-theme-200 text-xs">{data.node.id}</div>
+      )}
+    </>
+  );
+}

src/components/widgets/widget.jsx

@@ -13,6 +13,7 @@ const widgetMappings = {
   unifi_console: dynamic(() => import("components/widgets/unifi_console/unifi_console")),
   glances: dynamic(() => import("components/widgets/glances/glances")),
   openmeteo: dynamic(() => import("components/widgets/openmeteo/openmeteo")),
+  longhorn: dynamic(() => import("components/widgets/longhorn/longhorn")),
 };
 
 export default function Widget({ widget }) {