web: start implementing admin overview page

web/package.json

@@ -3,7 +3,7 @@
     "scripts": {
         "build": "rollup -c ./rollup.config.js",
         "watch": "rollup -c -w",
-        "format": "prettier --write ."
+        "lint": "eslint . --ext .js,.jsx,.ts,.tsx --fix"
     },
     "dependencies": {
         "@fortawesome/fontawesome-free": "^5.15.1",

web/rollup.config.js

@@ -43,6 +43,6 @@ export default [
         watch: {
             clearScreen: false,
         },
-        external: ['django']
+        external: ["django"]
     },
 ];

web/src/api/admin_overview.ts

@@ -0,0 +1,16 @@
+import { DefaultClient } from "./client";
+
+export class AdminOverview {
+    version?: string;
+    version_latest?: string;
+    worker_count?: number;
+    providers_without_application?: number;
+    policies_without_binding?: number;
+    cached_policies?: number;
+    cached_flows?: number;
+
+    static get(): Promise<AdminOverview> {
+        return DefaultClient.fetch<AdminOverview>(["admin", "overview"]);
+    }
+
+}

web/src/django.d.ts

@@ -1,4 +1,4 @@
-declare module 'django' {
+declare module "django" {
     export = django;
 }
 declare namespace django {

web/src/elements/Spinner.ts

@@ -0,0 +1,33 @@
+import { gettext } from "django";
+import { customElement, html, LitElement, property, TemplateResult } from "lit-element";
+// @ts-ignore
+import SpinnerStyle from "@patternfly/patternfly/components/Spinner/spinner.css";
+
+export enum SpinnerSize {
+    Small = "pf-m-sm",
+    Medium = "pf-m-md",
+    Large = "pf-m-lg",
+    XLarge = "pf-m-xl",
+}
+
+@customElement("pb-spinner")
+export class Spinner extends LitElement {
+    @property()
+    size: SpinnerSize = SpinnerSize.Medium;
+
+    static get styles() {
+        return [SpinnerStyle];
+    }
+
+    render(): TemplateResult {
+        return html`<span
+                class="pf-c-spinner ${this.size.toString()}"
+                role="progressbar"
+                aria-valuetext="${gettext("Loading...")}">
+                <span class="pf-c-spinner__clipper"></span>
+                <span class="pf-c-spinner__lead-ball"></span>
+                <span class="pf-c-spinner__tail-ball"></span>
+            </span>`;
+    }
+
+}

web/src/main.ts

@@ -13,9 +13,11 @@ import "./elements/sidebar/Sidebar";
 import "./elements/sidebar/SidebarBrand";
 import "./elements/sidebar/SidebarUser";
 import "./elements/Tabs";
+import "./elements/Spinner";
 import "./elements/table/TablePagination";
 import "./pages/applications/ApplicationViewPage";
 import "./pages/applications/ApplicationListPage";
+import "./pages/AdminOverviewPage";
 import "./pages/LibraryPage";
 import "./pages/FlowShellCard";
 import "./pages/RouterOutlet";

web/src/pages/AdminOverviewPage.ts

@@ -0,0 +1,74 @@
+import { gettext } from "django";
+import { customElement, html, LitElement, property, TemplateResult } from "lit-element";
+import { AdminOverview } from "../api/admin_overview";
+import { DefaultClient } from "../api/client";
+import { COMMON_STYLES } from "../common/styles";
+
+@customElement("pb-aggregate-card")
+export class AggregateCard extends LitElement {
+    @property()
+    icon?: string;
+
+    @property()
+    header?: string;
+
+    static get styles() {
+        return COMMON_STYLES;
+    }
+
+    render(): TemplateResult {
+        return html`<div class="pf-c-card pf-c-card-aggregate pf-l-gallery__item pf-m-4-col" >
+            <div class="pf-c-card__header">
+                <div class="pf-c-card__header-main">
+                    <i class="${this.icon}"></i> ${this.header ? gettext(this.header) : ""}
+                </div>
+            </div>
+            <div class="pf-c-card__body">
+                <slot></slot>
+            </div>
+        </div>`;
+    }
+
+}
+
+@customElement("pb-admin-overview")
+export class AdminOverviewPage extends LitElement {
+    @property()
+    data?: AdminOverview;
+
+    static get styles() {
+        return COMMON_STYLES;
+    }
+
+    firstUpdated(): void {
+        AdminOverview.get().then(value => this.data = value);
+    }
+
+    render(): TemplateResult {
+        return html`<section class="pf-c-page__main-section pf-m-light">
+            <div class="pf-c-content">
+                <h1>${gettext("System Overview")}</h1>
+            </div>
+        </section>
+        <section class="pf-c-page__main-section">
+            <div class="pf-l-gallery pf-m-gutter">
+                <pb-aggregate-card icon="pf-icon pf-icon-server" header="Logins over the last 24 hours" style="grid-column-end: span 3;grid-row-end: span 2;">
+                    <pb-admin-logins-chart url="${DefaultClient.makeUrl(["admin", "metrics"])}"></pb-admin-logins-chart>
+                </pb-aggregate-card>
+                <pb-aggregate-card icon="pf-icon pf-icon-server" header="Workers">
+                    ${this.data ?
+                        this.data?.worker_count! < 1 ?
+                            html`<p class="pb-aggregate-card">
+                                    <i class="fa fa-exclamation-triangle"></i> ${this.data.worker_count}
+                                </p>
+                                <p>${gettext("No workers connected.")}</p>` :
+                            html`<p class="pb-aggregate-card">
+                                    <i class="fa fa-check-circle"></i> ${this.data.worker_count}
+                                </p>`
+                    : html`<pb-spinner></pb-spinner>`}
+                </pb-aggregate-card>
+            </div>
+        </section>`;
+    }
+
+}

web/src/pages/RouterOutlet.ts

@@ -52,6 +52,7 @@ export const ROUTES: Route[] = [
     new Route(new RegExp("^/$")).redirect("/library/"),
     new Route(new RegExp("^#.*")).redirect("/library/"),
     new Route(new RegExp("^/library/$"), html`<pb-library></pb-library>`),
+    new Route(new RegExp("^/administration/overview/$"), html`<pb-admin-overview></pb-admin-overview>`),
     new Route(new RegExp("^/applications/$"), html`<pb-application-list></pb-application-list>`),
     new Route(new RegExp(`^/applications/(?<slug>${SLUG_REGEX})/$`)).then((args) => {
         return html`<pb-application-view .args=${args}></pb-application-view>`;

web/src/pages/SiteShell.ts

@@ -98,19 +98,11 @@ export class SiteShell extends LitElement {
     }
 
     render() {
-        return html` ${this.loading
+        return html` ${this.loading ?
-            ? html`<div class="pf-c-backdrop">
+            html`<div class="pf-c-backdrop">
                     <div class="pf-l-bullseye">
                         <div class="pf-l-bullseye__item">
-                              <span
+                            <pb-spinner></pb-spinner>
-                                  class="pf-c-spinner pf-m-xl"
-                                  role="progressbar"
-                                  aria-valuetext="Loading..."
-                              >
-                                  <span class="pf-c-spinner__clipper"></span>
-                                  <span class="pf-c-spinner__lead-ball"></span>
-                                  <span class="pf-c-spinner__tail-ball"></span>
-                              </span>
                         </div>
                     </div>
                 </div>`