Refactor card.ts substantially and test.

src/utils/diagnostics.ts

@@ -0,0 +1,70 @@
+import { HomeAssistant } from 'custom-card-helpers';
+import pkg from '../../package.json';
+import { getLanguage } from '../localize/localize';
+import { RawFrigateCardConfig } from '../types';
+import { DeviceList, getAllDevices } from './ha/device-registry';
+
+type FrigateVersions = Record<string, string>;
+
+interface GitDiagnostics {
+  build_version?: string;
+  build_date?: string;
+  commit_date?: string;
+}
+
+export interface Diagnostics {
+  card_version: string;
+  browser: string;
+  date: Date;
+  lang: string;
+  timezone: string;
+  git: GitDiagnostics;
+
+  frigate_versions?: FrigateVersions;
+  ha_version?: string;
+  config?: RawFrigateCardConfig;
+}
+
+export const getDiagnostics = async (
+  hass?: HomeAssistant,
+  rawConfig?: RawFrigateCardConfig,
+): Promise<Diagnostics> => {
+  let devices: DeviceList | undefined = [];
+  if (hass) {
+    try {
+      devices = await getAllDevices(hass);
+    } catch (e) {
+      // Pass. This is optional.
+    }
+  }
+
+  // Get the Frigate devices in order to extract the Frigate integration and
+  // server version numbers.
+  const frigateDevices = devices?.filter((device) => device.manufacturer === 'Frigate');
+  const frigateVersionMap: Map<string, string> = new Map();
+  frigateDevices?.forEach((device) => {
+    device.config_entries.forEach((configEntry) => {
+      if (device.model) {
+        frigateVersionMap.set(configEntry, device.model);
+      }
+    });
+  });
+
+  return {
+    card_version: pkg.version,
+    browser: navigator.userAgent,
+    date: new Date(),
+    ...(frigateVersionMap.size && {
+      frigate_versions: Object.fromEntries(frigateVersionMap),
+    }),
+    lang: getLanguage(),
+    timezone: Intl.DateTimeFormat().resolvedOptions().timeZone,
+    git: {
+      ...(pkg['gitVersion'] && { build_version: pkg['gitVersion'] }),
+      ...(pkg['buildDate'] && { build_date: pkg['buildDate'] }),
+      ...(pkg['gitDate'] && { commit_date: pkg['gitDate'] }),
+    },
+    ...(hass && { ha_version: hass.config.version }),
+    ...(rawConfig && { config: rawConfig }),
+  };
+};