Add some initial history APIs

Weather/Service/Data/Database.cs

@@ -1,4 +1,5 @@
 using ChrisKaczor.HomeMonitor.Weather.Models;
+using ChrisKaczor.HomeMonitor.Weather.Service.Models;
 using Dapper;
 using Microsoft.Extensions.Configuration;
 using System;
@@ -96,5 +97,16 @@ namespace ChrisKaczor.HomeMonitor.Weather.Service.Data
 
             return await connection.QueryAsync<WeatherReading>(query, new { Start = start, End = end });
         }
+
+        public async Task<IEnumerable<WeatherValue>> GetReadingValueHistory(WeatherValueType weatherValueType, DateTimeOffset start, DateTimeOffset end, int bucketMinutes)
+        {
+            await using var connection = CreateConnection();
+
+            var query = ResourceReader.GetString("ChrisKaczor.HomeMonitor.Weather.Service.Data.Resources.GetReadingValueHistory.sql");
+
+            query = query.Replace("@Value", weatherValueType.ToString());
+
+            return await connection.QueryAsync<WeatherValue>(query, new { Start = start, End = end, BucketMinutes = bucketMinutes });
+        }
     }
 }

Weather/Service/Data/Resources/GetReadingValueHistory.sql

@@ -0,0 +1,12 @@
+SELECT bucket,
+       AVG(Value) AS AverageValue
+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,
+                @Value                                                                AS Value
+         FROM Reading
+         WHERE Timestamp BETWEEN @Start AND @End
+     ) AS Data
+GROUP BY Bucket
+ORDER BY Bucket