Add FileInput for simulation. Modify SerialInput and move into package.

ConsoleApp/ConsoleApp.csproj

@@ -17,5 +17,9 @@
     <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
     <PackageReference Include="Terminal.Gui" Version="1.16.0" />
   </ItemGroup>
+
+    <Target Name="PostBuild" AfterTargets="PostBuildEvent">
+      <Exec Command="copy /Y &quot;$(ProjectDir)TestData\example.txt&quot; &quot;$(TargetDir)&quot;" />
+  </Target>
 
 </Project>

ConsoleApp/OnSerialDataReceived.cs → ConsoleApp/OnDataReceived.cs

@@ -1,10 +1,11 @@
-using Terminal.Gui;
+using GPSReader.Interfaces;
+using Terminal.Gui;
 
 namespace ConsoleApp;
 
 internal partial class Program
 {
-    private static void OnSerialDataReceived(SerialInput serialInput, Window inputWindow)
+    private static void OnDataReceived(INMEAInput serialInput, Window inputWindow)
     {
         serialInput.DataReceived += (sender, e) =>
         {

ConsoleApp/Program.cs

@@ -1,6 +1,5 @@
-using Microsoft.Extensions.Logging;
-using GPSReader;
-using Serilog;
+using GPSReader;
+using GPSReader.Interfaces;
 using Terminal.Gui;
 
 namespace ConsoleApp
@@ -9,15 +8,31 @@ internal partial class Program
     {
         static void Main(string[] args)
         {
+            // show prompt to select input type
+            // 1. Serial Port
+            // 2. File
+            Console.WriteLine("Select input type: \n1. Serial Port \n2. File(example.txt for simulation)");
+            var inputType = Console.ReadLine();
+
             Application.Init();
             var (inputWindow, gpggaWindow, gpgsaWindow, gpgllWindow, gpgsvWindow) = CreateWindows();
 
             var logger = CreateLogger();
 
-            var serialInput = new SerialInput();
-            var gpsReaderService = new GPSReaderService(logger, serialInput);
+            INMEAInput? input;
 
-            OnSerialDataReceived(serialInput, inputWindow);
+            if (inputType == "1")
+            {
+                input = new SerialInput("COM7", 115200);
+            }
+            else
+            {
+                input = new FileInput(@"example.txt");
+            }
+
+            var gpsReaderService = new GPSReaderService(logger, input);
+
+            OnDataReceived(input, inputWindow);
             OnGPGGAUpdated(gpsReaderService, gpggaWindow);
             OnGPGSAUpdated(gpsReaderService, gpgsaWindow);
             OnGPGLLUpdated(gpsReaderService, gpgllWindow);

GPSReader/GPSReader.csproj

@@ -14,6 +14,7 @@
     <RepositoryType>git</RepositoryType>
     <Copyright>© 2024 Jui-Hsiang Liu</Copyright>
 	<PackageReadmeFile>README.md</PackageReadmeFile>
+	<Version>1.0.1</Version>
   </PropertyGroup>
 
   <ItemGroup>

GPSReader/Input/FileInput.cs

@@ -0,0 +1,48 @@
+using GPSReader.EventArgs;
+using GPSReader.Interfaces;
+
+public class FileInput : INMEAInput
+{
+    private StreamReader? _stream;
+    private Thread? _thread;
+    private CancellationTokenSource? _cancellationTokenSource;
+    public event EventHandler<InputReceivedEventArgs>? DataReceived;
+
+    public FileInput(string filePath)
+    {
+        _stream = new StreamReader(filePath);
+    }
+
+    public void Open()
+    {
+        _cancellationTokenSource = new CancellationTokenSource();
+        _thread = new Thread(() => PeriodReadAndInvoke(_cancellationTokenSource.Token));
+        _thread.Start();
+    }
+
+    public void Close()
+    {
+        _cancellationTokenSource?.Cancel();
+    }
+
+    public bool IsOpen { get; private set; }
+
+    private void PeriodReadAndInvoke(CancellationToken cancellationToken)
+    {
+        string? lines = "";
+        string? data;
+        while ((data = _stream?.ReadLine()) != null && !cancellationToken.IsCancellationRequested)
+        {
+            if ((lines.Contains("$GPGLL")) && string.IsNullOrEmpty(data))
+            {
+                DataReceived?.Invoke(this, new InputReceivedEventArgs(lines));
+                lines = "";
+                System.Threading.Thread.Sleep(1000);
+            }
+            else
+            {
+                lines += data + "\n";
+            }
+        }
+    }
+}

ConsoleApp/SerialInput.cs → GPSReader/Input/SerialInput.cs

@@ -7,12 +7,18 @@ namespace ConsoleApp;
 
 public class SerialInput : INMEAInput
 {
-    private string comPortName = "COM12";
+    private string comPortName = "COM1";
     private int baudRate = 115200;
     private SerialPort? serialPort;
 
     public event EventHandler<InputReceivedEventArgs>? DataReceived;
 
+    public SerialInput(string comPortName, int baudRate)
+    {
+        this.comPortName = comPortName;
+        this.baudRate = baudRate;
+    }
+
     public void Open()
     {
         serialPort = new SerialPort(comPortName, baudRate);

README.md

@@ -4,6 +4,7 @@ GPSReader is a C# library designed to parse NMEA 0183 sentences from GPS devices
 
 ## Features
 
+- Supports reading NMEA sentences from a serial port(real-time) or a file(simulation purpose).
 - Supports multiple NMEA sentence types (GPGGA, GPGSA, GPGLL, GPGSV).
 - Event-driven architecture allows for real-time processing of GPS data.
 - Customizable parser list allows for easy addition of new sentence types.
@@ -44,8 +45,9 @@ gpsReaderService.OnGPGSAUpdated += (sender, args) =>
 ```
 
 ## Example
-You can find an example of how to use GPSReader in the `Example` project. This project contains a simple console application that reads GPS data from a file and prints the parsed data to the console.
+You can find an example of how to use GPSReader in the `ConsoleApp` project under example folder. This project contains a simple console application that reads GPS data from a file and prints the parsed data to the console.
 
+[README.md](README.md)
 Screenshot of the example output:
 ![screenshot.jpg](ConsoleApp/screenshot.jpg)