From ee79284da6abaf572f9bb1233cc78c2d51f96867 Mon Sep 17 00:00:00 2001
From: Unclear Paradigm <rarepublic@protonmail.com>
Date: Fri, 12 Jun 2020 21:44:18 +0200
Subject: [PATCH] implement sample-rate to reduce output-file size

---
 src/OSCARGyroExporter/CmdArguments.cs | 6 ++++++
 src/OSCARGyroExporter/OutputModel.cs  | 4 ++++
 src/OSCARGyroExporter/Program.cs      | 4 ++--
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/OSCARGyroExporter/CmdArguments.cs b/src/OSCARGyroExporter/CmdArguments.cs
index 0e3f95d..7f51444 100644
--- a/src/OSCARGyroExporter/CmdArguments.cs
+++ b/src/OSCARGyroExporter/CmdArguments.cs
@@ -14,6 +14,9 @@ public class ManualCmdArguments {
     
     [Option('t', "timezoneoffset", Default=0, Required = false, HelpText = "Statischer Offset welcher zum/vom Referenzdatum addiert/subtrahiert wird")]
     public int TimezoneOffset { get; set; }
+
+    [Option('s', "samplerate", Default=1, Required = false, HelpText = "Abtastrate der Eingabedatei. 1=jeder Messpunkt, 2=jeder zweite Messpunkt, 3=..., 4...")]
+    public int SampleRate { get; set; }
   }
   
   // ReSharper disable once ClassNeverInstantiated.Global
@@ -27,6 +30,9 @@ public class AutomaticCmdArguments {
     
     [Option('t', "timezoneoffset", Default=0, Required = false, HelpText = "Statischer Offset welcher zum/vom Referenzdatum addiert/subtrahiert wird")]
     public int TimezoneOffset { get; set; }
+    
+    [Option('s', "samplerate", Default=1, Required = false, HelpText = "Abtastrate der Eingabedatei. 1=jeder Messpunkt, 2=jeder zweite Messpunkt, 3=..., 4...")]
+    public int SampleRate { get; set; }
 
     public string[] GetFilesInInputDirectory() => Directory.GetFiles(InputDirectory, "*.csv");
   }
diff --git a/src/OSCARGyroExporter/OutputModel.cs b/src/OSCARGyroExporter/OutputModel.cs
index 4450e1c..1ca1036 100644
--- a/src/OSCARGyroExporter/OutputModel.cs
+++ b/src/OSCARGyroExporter/OutputModel.cs
@@ -31,6 +31,10 @@ public static Result<OutputModel> Create(InputModel inputModel) {
           .ToString(CultureInfo.InvariantCulture)
           .Replace(",", ".");
 
+        if (tsString.Split(".").Length != 2) {
+          tsString += ".000";
+        }
+        
         var model = new OutputModel(
           tsString,
           orientation.ToString(CultureInfo.InvariantCulture).Replace(",","."),
diff --git a/src/OSCARGyroExporter/Program.cs b/src/OSCARGyroExporter/Program.cs
index ff3f705..6769862 100644
--- a/src/OSCARGyroExporter/Program.cs
+++ b/src/OSCARGyroExporter/Program.cs
@@ -106,7 +106,7 @@ private static Result<DateTime> ReadReferenceDate() {
       }
     }
 
-    private static Result<List<InputModel>> MapToInputModels(string fileContent, DateTime referenceDateTime) {
+    private static Result<List<InputModel>> MapToInputModels(string fileContent, DateTime referenceDateTime, int sampleRate) {
       if (string.IsNullOrWhiteSpace(fileContent))
         return Result.Failure<List<InputModel>>("Die angegebene Datei ist leer und entspricht nicht dem Eingabeformat");
 
@@ -114,7 +114,7 @@ private static Result<List<InputModel>> MapToInputModels(string fileContent, Dat
       var lines = fileContent.Split(detectedFileEnding);
 
       var outputList = new List<Result<InputModel>>();
-      foreach (var line in lines.Skip(1)) {
+      foreach (var line in lines.Skip(1).Where((x, i) => i % sampleRate == 0)) {
         var detectedColumnSeparatorChar = line.Contains(';') ? ';' : ',';
         var values = line.Split(detectedColumnSeparatorChar);