Implement weather calculations in the service

Power/Service/.vscode/launch.json

@@ -1,30 +1,30 @@
 {
-    // Use IntelliSense to find out which attributes exist for C# debugging
+    // Use IntelliSense to learn about possible attributes.
-    // Use hover for the description of the existing attributes
+    // Hover to view descriptions of existing attributes.
-    // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
     "version": "0.2.0",
     "configurations": [
         {
-            "name": ".NET Core Launch (remote console)",
+            "name": ".NET Core Launch (web)",
             "type": "coreclr",
             "request": "launch",
-            "preLaunchTask": "publish",
+            "preLaunchTask": "build",
-            "program": "dotnet",
+            "program": "${workspaceFolder}/bin/Debug/netcoreapp3.0/ChrisKaczor.HomeMonitor.Power.Service.dll",
-            "args": [
+            "args": [],
-                "/home/ckaczor/Power/Service/Power.Service.dll"
+            "cwd": "${workspaceFolder}",
-            ],
-            "cwd": "/home/ckaczor/Power/Service",
             "stopAtEntry": false,
-            "console": "internalConsole",
+            "env": {
-            "pipeTransport": {
+                "ASPNETCORE_ENVIRONMENT": "Development"
-                "pipeCwd": "${workspaceFolder}",
-                "pipeProgram": "C:\\Program Files (x86)\\PuTTY\\PLINK.EXE",
-                "pipeArgs": [
-                    "root@172.23.10.6"
-                ],
-                "debuggerPath": "/home/ckaczor/vsdbg/vsdbg"
             },
-            "internalConsoleOptions": "openOnSessionStart"
+            "sourceFileMap": {
+                "/Views": "${workspaceFolder}/Views"
+            }
+        },
+        {
+            "name": ".NET Core Attach",
+            "type": "coreclr",
+            "request": "attach",
+            "processId": "${command:pickProcess}"
         }
     ]
 }

Power/Service/.vscode/tasks.json

@@ -7,29 +7,54 @@
             "type": "process",
             "args": [
                 "build",
-                "${workspaceFolder}/Service.csproj"
+                "${workspaceFolder}/Service.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
             ],
-            "problemMatcher": "$msCompile",
+            "problemMatcher": "$msCompile"
-            "group": {
-                "kind": "build",
-                "isDefault": true
-            }
         },
         {
             "label": "publish",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "publish",
+                "${workspaceFolder}/Service.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "watch",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "watch",
+                "run",
+                "${workspaceFolder}/Service.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "build",
+            "command": "dotnet",
             "type": "shell",
+            "args": [
+                "build",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
             "presentation": {
-                "reveal": "always",
+                "reveal": "silent"
-                "panel": "shared"
             },
-            "options": {
+            "problemMatcher": "$msCompile"
-                "cwd": "${workspaceFolder}"
-            },
-            "windows": {
-                "command": "${cwd}\\publish.bat"
-            },
-            "problemMatcher": [],
-            "group": "build"
         }
     ]
 }

Weather/Service/.vscode/launch.json

@@ -1,30 +1,31 @@
 {
-    // Use IntelliSense to find out which attributes exist for C# debugging
+   // Use IntelliSense to find out which attributes exist for C# debugging
-    // Use hover for the description of the existing attributes
+   // Use hover for the description of the existing attributes
-    // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
+   // For further information visit https://github.com/OmniSharp/omnisharp-vscode/blob/master/debugger-launchjson.md
-    "version": "0.2.0",
+   "version": "0.2.0",
-    "configurations": [
+   "configurations": [
         {
-            "name": ".NET Core Launch (remote console)",
+            "name": ".NET Core Launch (web)",
             "type": "coreclr",
             "request": "launch",
-            "preLaunchTask": "publish",
+            "preLaunchTask": "build",
-            "program": "dotnet",
+            // If you have changed target frameworks, make sure to update the program path.
-            "args": [
+            "program": "${workspaceFolder}/bin/Debug/netcoreapp3.0/ChrisKaczor.HomeMonitor.Weather.Service.dll",
-                "/home/ckaczor/Weather/Service/Weather.Service.dll"
+            "args": [],
-            ],
+            "cwd": "${workspaceFolder}",
-            "cwd": "/home/ckaczor/Weather/Service",
             "stopAtEntry": false,
-            "console": "internalConsole",
+            "env": {
-            "pipeTransport": {
+                "ASPNETCORE_ENVIRONMENT": "Development"
-                "pipeCwd": "${workspaceFolder}",
-                "pipeProgram": "C:\\Program Files (x86)\\PuTTY\\PLINK.EXE",
-                "pipeArgs": [
-                    "root@172.23.10.6"
-                ],
-                "debuggerPath": "/home/ckaczor/vsdbg/vsdbg"
             },
-            "internalConsoleOptions": "openOnSessionStart"
+            "sourceFileMap": {
+                "/Views": "${workspaceFolder}/Views"
+            }
+        },
+        {
+            "name": ".NET Core Attach",
+            "type": "coreclr",
+            "request": "attach",
+            "processId": "${command:pickProcess}"
         }
     ]
 }

Weather/Service/.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "cSpell.words": [
+        "Kaczor"
+    ]
+}

Weather/Service/.vscode/tasks.json

@@ -7,29 +7,54 @@
             "type": "process",
             "args": [
                 "build",
-                "${workspaceFolder}/Service.csproj"
+                "${workspaceFolder}/Service.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
             ],
-            "problemMatcher": "$msCompile",
+            "problemMatcher": "$msCompile"
-            "group": {
-                "kind": "build",
-                "isDefault": true
-            }
         },
         {
             "label": "publish",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "publish",
+                "${workspaceFolder}/Service.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "watch",
+            "command": "dotnet",
+            "type": "process",
+            "args": [
+                "watch",
+                "run",
+                "${workspaceFolder}/Service.csproj",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "problemMatcher": "$msCompile"
+        },
+        {
+            "label": "build",
+            "command": "dotnet",
             "type": "shell",
+            "args": [
+                "build",
+                "/property:GenerateFullPaths=true",
+                "/consoleloggerparameters:NoSummary"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
             "presentation": {
-                "reveal": "always",
+                "reveal": "silent"
-                "panel": "shared"
             },
-            "options": {
+            "problemMatcher": "$msCompile"
-                "cwd": "${workspaceFolder}"
-            },
-            "windows": {
-                "command": "${cwd}\\publish.bat"
-            },
-            "problemMatcher": [],
-            "group": "build"
         }
     ]
 }

Weather/Service/Data/Resources/GetReadingValueHistory.sql

@@ -2,3 +2,4 @@ SELECT Timestamp,
        @Value AS Value
 FROM Reading
 WHERE Timestamp BETWEEN @Start AND @End
+ORDER BY Timestamp ASC

Weather/Service/Extensions.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace ChrisKaczor.HomeMonitor.Weather.Service
+{
+    public static class Extensions
+    {
+        public static bool IsBetween<T>(this T item, T start, T end) where T : IComparable
+        {
+            return item.CompareTo(start) >= 0 && item.CompareTo(end) <= 0;
+        }
+    }
+}

Weather/Service/MessageHandler.cs

@@ -1,5 +1,6 @@
 using ChrisKaczor.HomeMonitor.Weather.Models;
 using ChrisKaczor.HomeMonitor.Weather.Service.Data;
+using ChrisKaczor.HomeMonitor.Weather.Service.Models;
 using JetBrains.Annotations;
 using Microsoft.AspNetCore.SignalR.Client;
 using Microsoft.Extensions.Configuration;
@@ -8,11 +9,9 @@ using Newtonsoft.Json;
 using RabbitMQ.Client;
 using RabbitMQ.Client.Events;
 using System;
-using System.Linq;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
-using ChrisKaczor.HomeMonitor.Weather.Service.Models;
 
 namespace ChrisKaczor.HomeMonitor.Weather.Service
 {
@@ -97,17 +96,19 @@ namespace ChrisKaczor.HomeMonitor.Weather.Service
 
                 _database.StoreWeatherData(weatherMessage);
 
-                weatherMessage.Rain = _database.GetReadingValueSum(WeatherValueType.Rain, weatherMessage.Timestamp.AddHours(-1), weatherMessage.Timestamp).Result;
-
                 if (_hubConnection == null)
                     return;
 
+                var weatherUpdate = new WeatherUpdate(weatherMessage, _database);
+
                 try
                 {
                     if (_hubConnection.State == HubConnectionState.Disconnected)
                         _hubConnection.StartAsync().Wait();
 
-                    _hubConnection.InvokeAsync("SendLatestReading", JsonConvert.SerializeObject(weatherMessage)).Wait();
+                    var json = JsonConvert.SerializeObject(weatherUpdate);
+
+                    _hubConnection.InvokeAsync("SendLatestReading", json).Wait();
                 }
                 catch (Exception exception)
                 {

Weather/Service/Models/WeatherUpdate.cs

@@ -0,0 +1,114 @@
+using System.Linq;
+using ChrisKaczor.HomeMonitor.Weather.Models;
+using ChrisKaczor.HomeMonitor.Weather.Service.Data;
+using DecimalMath;
+using JetBrains.Annotations;
+using MathNet.Numerics;
+
+namespace ChrisKaczor.HomeMonitor.Weather.Service.Models
+{
+    [PublicAPI]
+    public class WeatherUpdate : WeatherMessage
+    {
+        private Database _database;
+
+        public decimal? WindChill { get; set; }
+
+        public decimal? HeatIndex { get; set; }
+
+        public decimal DewPoint { get; set; }
+
+        public decimal PressureTrend { get; set; }
+
+        public WeatherUpdate(WeatherMessage weatherMessage, Database database)
+        {
+            _database = database;
+
+            Type = weatherMessage.Type;
+            Message = weatherMessage.Message;
+            Timestamp = weatherMessage.Timestamp;
+            WindDirection = weatherMessage.WindDirection;
+            WindSpeed = weatherMessage.WindSpeed;
+            Humidity = weatherMessage.Humidity;
+            HumidityTemperature = weatherMessage.HumidityTemperature;
+            Rain = weatherMessage.Rain;
+            Pressure = weatherMessage.Pressure;
+            PressureTemperature = weatherMessage.PressureTemperature;
+            BatteryLevel = weatherMessage.BatteryLevel;
+            LightLevel = weatherMessage.LightLevel;
+            Latitude = weatherMessage.Latitude;
+            Longitude = weatherMessage.Longitude;
+            Altitude = weatherMessage.Altitude;
+            SatelliteCount = weatherMessage.SatelliteCount;
+            GpsTimestamp = weatherMessage.GpsTimestamp;
+
+            HeatIndex = CalculateHeatIndex();
+            WindChill = CalculateWindChill();
+            DewPoint = CalculateDewPoint();
+            PressureTrend = CalculatePressureTrend();
+
+            Rain = database.GetReadingValueSum(WeatherValueType.Rain, Timestamp.AddHours(-1), Timestamp).Result;
+        }
+
+        private decimal CalculatePressureTrend()
+        {
+            var pressureData = _database.GetReadingValueHistory(WeatherValueType.Pressure, Timestamp.AddHours(-3), Timestamp).Result;
+
+            var xData = pressureData.Select(p => (double)p.Timestamp.ToUnixTimeSeconds()).ToArray();
+            var yData = pressureData.Select(p => (double)p.Value / 100.0).ToArray();
+
+            var lineFunction = Fit.LineFunc(xData, yData);
+
+            var difference = (decimal) (lineFunction(yData.Length - 1) - lineFunction(0));
+
+            return difference;
+        }
+
+        private decimal? CalculateHeatIndex()
+        {
+            var temperature = PressureTemperature;
+            var humidity = Humidity;
+
+            if (temperature.IsBetween(80, 100) && humidity.IsBetween(40, 100))
+            {
+                var heatIndex = -42.379m + 2.04901523m * temperature + 10.14333127m * humidity - .22475541m * temperature * humidity - .00683783m * temperature * temperature -
+                                .05481717m * humidity * humidity + .00122874m * temperature * temperature * humidity + .00085282m * temperature * humidity * humidity -
+                                .00000199m * temperature * temperature * humidity * humidity;
+
+                return heatIndex;
+            }
+
+            return null;
+        }
+
+        private decimal? CalculateWindChill()
+        {
+            var temperatureInF = PressureTemperature;
+            var windSpeedInMph = WindSpeed;
+
+            if (temperatureInF.IsBetween(-45, 45) && windSpeedInMph.IsBetween(3, 60))
+            {
+                var windChill = 35.74m + 0.6215m * temperatureInF - 35.75m * DecimalEx.Pow(windSpeedInMph, 0.16m) + 0.4275m * temperatureInF * DecimalEx.Pow(windSpeedInMph, 0.16m);
+
+                return windChill;
+            }
+
+            return null;
+        }
+
+        private decimal CalculateDewPoint()
+        {
+            var relativeHumidity = Humidity;
+            var temperatureInF = PressureTemperature;
+
+            var temperatureInC = (temperatureInF - 32.0m) * 5.0m / 9.0m;
+
+            var vaporPressure = relativeHumidity * 0.01m * 6.112m * DecimalEx.Exp(17.62m * temperatureInC / (temperatureInC + 243.12m));
+            var numerator = 243.12m * DecimalEx.Log(vaporPressure) - 440.1m;
+            var denominator = 19.43m - DecimalEx.Log(vaporPressure);
+            var dewPointInC = numerator / denominator;
+
+            return dewPointInC * 9.0m / 5.0m + 32.0m;
+        }
+    }
+}

Weather/Service/Service.csproj

@@ -34,6 +34,8 @@
   <ItemGroup>
     <PackageReference Include="ChrisKaczor.HomeMonitor.Weather.Models" Version="1.0.1" />
     <PackageReference Include="Dapper" Version="2.0.30" />
+    <PackageReference Include="DecimalMath.DecimalEx" Version="1.0.2" />
+    <PackageReference Include="MathNet.Numerics" Version="4.11.0" />
     <PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="3.0.0" />
     <PackageReference Include="RabbitMQ.Client" Version="5.1.2" />
     <PackageReference Include="System.Data.SqlClient" Version="4.7.0" />