Add power database support

Power/Service/Controllers/ReadingsController.cs

@@ -1,11 +0,0 @@
-using Microsoft.AspNetCore.Mvc;
-
-namespace ChrisKaczor.HomeMonitor.Power.Service.Controllers
-{
-    [Route("[controller]")]
-    [ApiController]
-    public class ReadingsController : ControllerBase
-    {
-
-    }
-}

Power/Service/Controllers/StatusController.cs

@@ -0,0 +1,28 @@
+using ChrisKaczor.HomeMonitor.Power.Service.Data;
+using ChrisKaczor.HomeMonitor.Power.Service.Models;
+using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace ChrisKaczor.HomeMonitor.Power.Service.Controllers
+{
+    [Route("[controller]")]
+    [ApiController]
+    public class StatusController : ControllerBase
+    {
+        private readonly Database _database;
+
+        public StatusController(Database database)
+        {
+            _database = database;
+        }
+
+        [HttpGet("history-grouped")]
+        public async Task<ActionResult<List<PowerStatusGrouped>>> GetHistoryGrouped(DateTimeOffset start, DateTimeOffset end, int bucketMinutes = 2)
+        {
+            return (await _database.GetStatusHistoryGrouped(start, end, bucketMinutes)).ToList();
+        }
+    }
+}