admin: add authorisations metric (#3811)

add authorizations metric

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

web/src/elements/charts/Chart.ts

@@ -1,6 +1,16 @@
 import { EVENT_REFRESH } from "@goauthentik/common/constants";
 import { AKElement } from "@goauthentik/elements/Base";
-import { Chart, ChartConfiguration, ChartData, ChartOptions, Plugin, Tick } from "chart.js";
+import {
+    Chart,
+    ChartConfiguration,
+    ChartData,
+    ChartOptions,
+    Filler,
+    LineElement,
+    Plugin,
+    PointElement,
+    Tick,
+} from "chart.js";
 import { Legend, Tooltip } from "chart.js";
 import { BarController, DoughnutController, LineController } from "chart.js";
 import { ArcElement, BarElement } from "chart.js";
@@ -14,12 +24,33 @@ import { property } from "lit/decorators.js";
 
 Chart.register(Legend, Tooltip);
 Chart.register(LineController, BarController, DoughnutController);
-Chart.register(ArcElement, BarElement);
-Chart.register(TimeScale, LinearScale);
+Chart.register(ArcElement, BarElement, PointElement, LineElement);
+Chart.register(TimeScale, LinearScale, Filler);
 
 export const FONT_COLOUR_DARK_MODE = "#fafafa";
 export const FONT_COLOUR_LIGHT_MODE = "#151515";
 
+export class RGBAColor {
+    constructor(public r: number, public g: number, public b: number, public a: number = 1) {}
+    toString(): string {
+        return `rgba(${this.r}, ${this.g}, ${this.b}, ${this.a})`;
+    }
+}
+
+export function getColorFromString(stringInput: string): RGBAColor {
+    let hash = 0;
+    for (let i = 0; i < stringInput.length; i++) {
+        hash = stringInput.charCodeAt(i) + ((hash << 5) - hash);
+        hash = hash & hash;
+    }
+    const rgb = [0, 0, 0];
+    for (let i = 0; i < 3; i++) {
+        const value = (hash >> (i * 8)) & 255;
+        rgb[i] = value;
+    }
+    return new RGBAColor(rgb[0], rgb[1], rgb[2]);
+}
+
 export abstract class AKChart<T> extends AKElement {
     abstract apiRequest(): Promise<T>;
     abstract getChartData(data: T): ChartData;