Move api controller endpoints to api project

ProjectLighthouse.API/Controllers/StatisticsEndpoints.cs

@@ -0,0 +1,31 @@
+using LBPUnion.ProjectLighthouse.Helpers;
+using LBPUnion.ProjectLighthouse.Types;
+using LBPUnion.ProjectLighthouse.Types.Api;
+using Microsoft.AspNetCore.Mvc;
+
+namespace LBPUnion.ProjectLighthouse.API.Controllers;
+
+/// <summary>
+/// A collection of endpoints relating to statistics.
+/// </summary>
+public class StatisticsEndpoints : ApiEndpointController
+{
+    /// <summary>
+    /// Gets everything that StatisticsHelper provides.
+    /// </summary>
+    /// <returns>An instance of StatisticsResponse</returns>
+    [HttpGet("statistics")]
+    [ProducesResponseType(typeof(StatisticsResponse), StatusCodes.Status200OK)]
+    public async Task<IActionResult> GetStatistics()
+        => this.Ok
+        (
+            new StatisticsResponse
+            {
+                Photos = await StatisticsHelper.PhotoCount(),
+                Slots = await StatisticsHelper.SlotCount(),
+                Users = await StatisticsHelper.UserCount(),
+                RecentMatches = await StatisticsHelper.RecentMatches(),
+                TeamPicks = await StatisticsHelper.TeamPickCount(),
+            }
+        );
+}