Adds visitor dashboard and related features

src/app/services/stats.service.ts

@@ -0,0 +1,36 @@
+import { Injectable, inject } from '@angular/core';
+import { HttpClient } from '@angular/common/http';
+import { Observable } from 'rxjs';
+
+import { getAppConfig } from './app-config.service';
+import {
+  StatsSummary,
+  TimeSeriesPoint,
+  GeoStat,
+} from '../interfaces/visitor-stat';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class StatsService {
+  private http = inject(HttpClient);
+  private readonly baseUrl = `${getAppConfig().apiBaseUrl}/api/stats`;
+
+  getSummary(startDate: string, endDate: string): Observable<StatsSummary> {
+    return this.http.get<StatsSummary>(`${this.baseUrl}/summary`, {
+      params: { start_date: startDate, end_date: endDate },
+    });
+  }
+
+  getTimeSeries(startDate: string, endDate: string): Observable<TimeSeriesPoint[]> {
+    return this.http.get<TimeSeriesPoint[]>(`${this.baseUrl}/timeseries`, {
+      params: { start_date: startDate, end_date: endDate },
+    });
+  }
+
+  getGeoStats(startDate: string, endDate: string): Observable<GeoStat[]> {
+    return this.http.get<GeoStat[]>(`${this.baseUrl}/geo`, {
+      params: { start_date: startDate, end_date: endDate },
+    });
+  }
+}