Add endpoint to get several bucketed values

Weather/Service/Controllers/ReadingsController.cs

@@ -37,5 +37,11 @@ namespace ChrisKaczor.HomeMonitor.Weather.Service.Controllers
         {
             return (await _database.GetReadingValueHistory(weatherValueType, start, end, bucketMinutes)).ToList();
         }
+
+        [HttpGet("history-grouped")]
+        public async Task<ActionResult<List<WeatherReadingGrouped>>> GetHistoryGrouped(DateTimeOffset start, DateTimeOffset end, int bucketMinutes = 2)
+        {
+            return (await _database.GetReadingHistoryGrouped(start, end, bucketMinutes)).ToList();
+        }
     }
 }

Weather/Service/Data/Database.cs

@@ -108,5 +108,15 @@ namespace ChrisKaczor.HomeMonitor.Weather.Service.Data
 
             return await connection.QueryAsync<WeatherValue>(query, new { Start = start, End = end, BucketMinutes = bucketMinutes });
         }
+
+        public async Task<IEnumerable<WeatherReadingGrouped>> GetReadingHistoryGrouped(DateTimeOffset start, DateTimeOffset end, int bucketMinutes)
+        {
+            await using var connection = CreateConnection();
+
+            var query = ResourceReader.GetString("ChrisKaczor.HomeMonitor.Weather.Service.Data.Resources.GetReadingHistoryGrouped.sql");
+
+            return await connection.QueryAsync<WeatherReadingGrouped>(query, new { Start = start, End = end, BucketMinutes = bucketMinutes });
+        }
+
     }
 }

Weather/Service/Data/Resources/GetReadingHistoryGrouped.sql

@@ -0,0 +1,20 @@
+SELECT bucket,
+	   AVG(HumidityTemperature) AS AverageHumidityTemperature,
+	   AVG(Humidity) AS AverageHumidity,
+       AVG(PressureTemperature) AS AveragePressureTemperature,
+       AVG(Pressure) / 100 AS AveragePressure,
+	   AVG(LightLevel) AS AverageLightLevel
+FROM (
+         SELECT CAST(FORMAT(Timestamp, 'yyyy-MM-ddTHH:') +
+                RIGHT('00' + CAST(DATEPART(MINUTE, Timestamp) / @BucketMinutes * @BucketMinutes AS VARCHAR), 2)
+				+ ':00+00:00' AS DATETIMEOFFSET)									  AS Bucket,
+                HumidityTemperature,
+				Humidity,
+				PressureTemperature,
+				Pressure,
+				LightLevel
+         FROM Reading
+         WHERE Timestamp BETWEEN @Start AND @End
+     ) AS Data
+GROUP BY Bucket
+ORDER BY Bucket

Weather/Service/Models/WeatherReadingGrouped.cs

@@ -0,0 +1,21 @@
+using JetBrains.Annotations;
+using System;
+
+namespace ChrisKaczor.HomeMonitor.Weather.Service.Models
+{
+    [PublicAPI]
+    public class WeatherReadingGrouped
+    {
+        public DateTimeOffset Bucket { get; set; }
+
+        public decimal AverageHumidityTemperature { get; set; }
+
+        public decimal AverageHumidity { get; set; }
+
+        public decimal AveragePressureTemperature { get; set; }
+
+        public decimal AveragePressure { get; set; }
+
+        public decimal AverageLightLevel { get; set; }
+    }
+}

Weather/Service/Service.csproj

@@ -11,6 +11,7 @@
   <ItemGroup>
     <None Remove="Data\Resources\CreateReading.sql" />
     <None Remove="Data\Resources\GetReadingHistory.sql" />
+    <None Remove="Data\Resources\GetReadingHistoryGrouped.sql" />
     <None Remove="Data\Resources\GetReadingValueHistory.sql" />
     <None Remove="Data\Resources\GetRecentReading.sql" />
     <None Remove="Data\Resources\Schema.sql" />
@@ -18,6 +19,7 @@
 
   <ItemGroup>
     <EmbeddedResource Include="Data\Resources\GetReadingHistory.sql" />
+    <EmbeddedResource Include="Data\Resources\GetReadingHistoryGrouped.sql" />
     <EmbeddedResource Include="Data\Resources\GetReadingValueHistory.sql" />
     <EmbeddedResource Include="Data\Resources\GetRecentReading.sql" />
     <EmbeddedResource Include="Data\Resources\CreateReading.sql" />