Move some modules from src to shlink-web-component

shlink-web-component/utils/services/ColorGenerator.ts

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+import { isNil } from 'ramda';
+import type { LocalStorage } from '../../../src/utils/services/LocalStorage';
+import { rangeOf } from '../../../src/utils/utils';
+
+const HEX_COLOR_LENGTH = 6;
+const HEX_DIGITS = '0123456789ABCDEF';
+const LIGHTNESS_BREAKPOINT = 128;
+
+const { floor, random, sqrt, round } = Math;
+const buildRandomColor = () =>
+  `#${rangeOf(HEX_COLOR_LENGTH, () => HEX_DIGITS[floor(random() * HEX_DIGITS.length)]).join('')}`;
+const normalizeKey = (key: string) => key.toLowerCase().trim();
+const hexColorToRgbArray = (colorHex: string): number[] =>
+  (colorHex.match(/../g) ?? []).map((hex) => parseInt(hex, 16) || 0);
+// HSP by Darel Rex Finley https://alienryderflex.com/hsp.html
+const perceivedLightness = (r = 0, g = 0, b = 0) => round(sqrt(0.299 * r ** 2 + 0.587 * g ** 2 + 0.114 * b ** 2));
+
+export class ColorGenerator {
+  private readonly colors: Record<string, string>;
+  private readonly lights: Record<string, boolean>;
+
+  public constructor(private readonly storage: LocalStorage) {
+    this.colors = this.storage.get<Record<string, string>>('colors') ?? {};
+    this.lights = {};
+  }
+
+  public readonly getColorForKey = (key: string) => {
+    const normalizedKey = normalizeKey(key);
+    const color = this.colors[normalizedKey];
+
+    // If a color has not been set yet, generate a random one and save it
+    if (!color) {
+      return this.setColorForKey(normalizedKey, buildRandomColor());
+    }
+
+    return color;
+  };
+
+  public readonly setColorForKey = (key: string, color: string) => {
+    const normalizedKey = normalizeKey(key);
+
+    this.colors[normalizedKey] = color;
+    this.storage.set('colors', this.colors);
+
+    return color;
+  };
+
+  public readonly isColorLightForKey = (key: string): boolean => {
+    const colorHex = this.getColorForKey(key).substring(1);
+
+    if (isNil(this.lights[colorHex])) {
+      const rgb = hexColorToRgbArray(colorHex);
+
+      this.lights[colorHex] = perceivedLightness(...rgb) >= LIGHTNESS_BREAKPOINT;
+    }
+
+    return this.lights[colorHex];
+  };
+}

shlink-web-component/utils/services/LocalStorage.ts

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+const PREFIX = 'shlink';
+const buildPath = (path: string) => `${PREFIX}.${path}`;
+
+export class LocalStorage {
+  public constructor(private readonly localStorage: Storage) {}
+
+  public readonly get = <T>(key: string): T | undefined => {
+    const item = this.localStorage.getItem(buildPath(key));
+
+    return item ? JSON.parse(item) as T : undefined;
+  };
+
+  public readonly set = (key: string, value: any) => this.localStorage.setItem(buildPath(key), JSON.stringify(value));
+}

shlink-web-component/utils/services/ReportExporter.ts

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+import type { JsonToCsv } from '../../../src/utils/helpers/csvjson';
+import { saveCsv } from '../../../src/utils/helpers/files';
+import type { ExportableShortUrl } from '../../short-urls/data';
+import type { NormalizedVisit } from '../../visits/types';
+
+export class ReportExporter {
+  public constructor(private readonly window: Window, private readonly jsonToCsv: JsonToCsv) {
+  }
+
+  public readonly exportVisits = (filename: string, visits: NormalizedVisit[]) => {
+    if (!visits.length) {
+      return;
+    }
+
+    this.exportCsv(filename, visits);
+  };
+
+  public readonly exportShortUrls = (shortUrls: ExportableShortUrl[]) => {
+    if (!shortUrls.length) {
+      return;
+    }
+
+    this.exportCsv('short_urls.csv', shortUrls);
+  };
+
+  private readonly exportCsv = (filename: string, rows: object[]) => {
+    const csv = this.jsonToCsv(rows);
+    saveCsv(this.window, csv, filename);
+  };
+}

shlink-web-component/utils/services/provideServices.ts

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+import type Bottle from 'bottlejs';
+import { useTimeoutToggle } from '../helpers/hooks';
+import { ColorGenerator } from './ColorGenerator';
+import { LocalStorage } from './LocalStorage';
+
+export function provideServices(bottle: Bottle) {
+  bottle.constant('localStorage', window.localStorage);
+  bottle.service('Storage', LocalStorage, 'localStorage');
+  bottle.service('ColorGenerator', ColorGenerator, 'Storage');
+
+  bottle.constant('setTimeout', window.setTimeout);
+  bottle.constant('clearTimeout', window.clearTimeout);
+  bottle.serviceFactory('useTimeoutToggle', useTimeoutToggle, 'setTimeout', 'clearTimeout');
+}