Implemented short URLs exporting

src/common/services/ReportExporter.ts

@@ -0,0 +1,33 @@
+import { CsvJson } from 'csvjson';
+import { NormalizedVisit } from '../../visits/types';
+import { ExportableShortUrl } from '../../short-urls/data';
+import { saveCsv } from '../../utils/helpers/files';
+
+export class ReportExporter {
+  public constructor(
+    private readonly window: Window,
+    private readonly csvjson: CsvJson,
+  ) {}
+
+  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.csvjson.toCSV(rows, { headers: 'key', wrap: true });
+
+    saveCsv(this.window, csv, filename);
+  };
+}