Convert serial reader from console to web API

Weather/SerialReader/Program.cs

@@ -1,163 +1,20 @@
-using ChrisKaczor.HomeMonitor.Weather.Models;
-using Microsoft.Extensions.Configuration;
-using Newtonsoft.Json;
-using RabbitMQ.Client;
-using System;
-using System.IO.Ports;
-using System.Linq;
-using System.Text;
-using System.Threading;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
 
 namespace ChrisKaczor.HomeMonitor.Weather.SerialReader
 {
-    internal static class Program
+    public static class Program
     {
-        private static IConfiguration _configuration;
-        private static bool _boardStarting;
-
-        private static readonly CancellationTokenSource CancellationTokenSource = new CancellationTokenSource();
-
-        private static void Main()
+        public static void Main(string[] args)
         {
-            WriteLog("Starting");
-
-            Console.CancelKeyPress += OnCancelKeyPress;
-
-            _configuration = new ConfigurationBuilder()
-                .AddJsonFile("appsettings.json", false, false)
-                .AddEnvironmentVariables()
-                .Build();
-
-            var baudRate = int.Parse(_configuration["Weather:Port:BaudRate"]);
-
-            while (!CancellationTokenSource.Token.IsCancellationRequested)
-            {
-                try
-                {
-                    WriteLog("Starting main loop");
-
-                    Thread.Sleep(1000);
-
-                    var port = GetPort();
-
-                    if (port == null)
-                        continue;
-
-                    using var serialPort = new SerialPort(port, baudRate) { NewLine = "\r\n" };
-
-                    WriteLog("Opening serial port");
-
-                    serialPort.Open();
-
-                    _boardStarting = false;
-
-                    var factory = new ConnectionFactory
-                    {
-                        HostName = _configuration["Weather:Queue:Host"],
-                        UserName = _configuration["Weather:Queue:User"],
-                        Password = _configuration["Weather:Queue:Password"]
-                    };
-
-                    WriteLog("Connecting to queue server");
-
-                    using var connection = factory.CreateConnection();
-                    using var model = connection.CreateModel();
-
-                    WriteLog("Declaring queue");
-
-                    model.QueueDeclare(_configuration["Weather:Queue:Name"], true, false, false, null);
-
-                    WriteLog("Starting serial read loop");
-
-                    ReadSerial(serialPort, model);
-                }
-                catch (Exception exception)
-                {
-                    WriteLog($"Exception: {exception}");
-                }
-            }
-
-            WriteLog("Exiting");
+            CreateHostBuilder(args).Build().Run();
         }
 
-        private static void ReadSerial(SerialPort serialPort, IModel model)
-        {
-            while (!CancellationTokenSource.Token.IsCancellationRequested)
-            {
-                try
+        private static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
                 {
-                    var message = serialPort.ReadLine();
-
-                    if (!_boardStarting)
-                    {
-                        _boardStarting = message.Contains("Board starting");
-
-                        if (_boardStarting)
-                            WriteLog("Board starting");
-                    }
-
-                    if (!_boardStarting)
-                    {
-                        WriteLog($"Message received but board not starting: {message}");
-                        continue;
-                    }
-
-                    WriteLog($"Message received: {message}");
-
-                    var weatherMessage = WeatherMessage.Parse(message);
-
-                    var messageString = JsonConvert.SerializeObject(weatherMessage);
-
-                    var body = Encoding.UTF8.GetBytes(messageString);
-
-                    var properties = model.CreateBasicProperties();
-
-                    properties.Persistent = true;
-
-                    model.BasicPublish(string.Empty, _configuration["Weather:Queue:Name"], properties, body);
-                }
-                catch (TimeoutException)
-                {
-                    WriteLog("Serial port read timeout");
-                }
-            }
-        }
-
-        private static void OnCancelKeyPress(object sender, ConsoleCancelEventArgs args)
-        {
-            args.Cancel = true;
-            CancellationTokenSource.Cancel();
-        }
-
-        private static string GetPort()
-        {
-            var portPrefix = _configuration["Weather:Port:Prefix"];
-
-            while (!CancellationTokenSource.Token.IsCancellationRequested)
-            {
-                WriteLog($"Checking for port starting with: {portPrefix}");
-
-                var ports = SerialPort.GetPortNames();
-
-                var port = Array.Find(ports, p => p.StartsWith(portPrefix));
-
-                if (port != null)
-                {
-                    WriteLog($"Port found: {port}");
-                    return port;
-                }
-
-                WriteLog("Port not found - waiting");
-
-                Thread.Sleep(1000);
-            }
-
-            return null;
-        }
-
-        private static void WriteLog(string message)
-        {
-            Console.WriteLine(message);
-        }
+                    webBuilder.UseStartup<Startup>();
+                });
     }
-}
+}