Initial commit

.gitignore

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+# Created by https://www.toptal.com/developers/gitignore/api/csharp,visualstudio
+# Edit at https://www.toptal.com/developers/gitignore?templates=csharp,visualstudio
+
+### Csharp ###
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.tlog
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio 6 auto-generated project file (contains which files were open etc.)
+*.vbp
+
+# Visual Studio 6 workspace and project file (working project files containing files to include in project)
+*.dsw
+*.dsp
+
+# Visual Studio 6 technical files
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# Visual Studio History (VSHistory) files
+.vshistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
+
+# VS Code files for those working on multiple tools
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# Local History for Visual Studio Code
+.history/
+
+# Windows Installer files from build outputs
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# JetBrains Rider
+*.sln.iml
+
+### VisualStudio ###
+
+# User-specific files
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+
+# Mono auto generated files
+
+# Build results
+
+# Visual Studio 2015/2017 cache/options directory
+# Uncomment if you have tasks that create the project's static files in wwwroot
+
+# Visual Studio 2017 auto generated files
+
+# MSTest test Results
+
+# NUnit
+
+# Build Results of an ATL Project
+
+# Benchmark Results
+
+# .NET Core
+
+# ASP.NET Scaffolding
+
+# StyleCop
+
+# Files built by Visual Studio
+
+# Chutzpah Test files
+
+# Visual C++ cache files
+
+# Visual Studio profiler
+
+# Visual Studio Trace Files
+
+# TFS 2012 Local Workspace
+
+# Guidance Automation Toolkit
+
+# ReSharper is a .NET coding add-in
+
+# TeamCity is a build add-in
+
+# DotCover is a Code Coverage Tool
+
+# AxoCover is a Code Coverage Tool
+
+# Coverlet is a free, cross platform Code Coverage Tool
+
+# Visual Studio code coverage results
+
+# NCrunch
+
+# MightyMoose
+
+# Web workbench (sass)
+
+# Installshield output folder
+
+# DocProject is a documentation generator add-in
+
+# Click-Once directory
+
+# Publish Web Output
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+
+# NuGet Packages
+# NuGet Symbol Packages
+# The packages folder can be ignored because of Package Restore
+# except build/, which is used as an MSBuild target.
+# Uncomment if necessary however generally it will be regenerated when needed
+# NuGet v3's project.json files produces more ignorable files
+
+# Microsoft Azure Build Output
+
+# Microsoft Azure Emulator
+
+# Windows Store app package directories and files
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+# but keep track of directories ending in .cache
+
+# Others
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+
+# RIA/Silverlight projects
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+
+# SQL Server files
+
+# Business Intelligence projects
+
+# Microsoft Fakes
+
+# GhostDoc plugin setting file
+
+# Node.js Tools for Visual Studio
+
+# Visual Studio 6 build log
+
+# Visual Studio 6 workspace options file
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+
+# Visual Studio 6 auto-generated project file (contains which files were open etc.)
+
+# Visual Studio 6 workspace and project file (working project files containing files to include in project)
+
+# Visual Studio 6 technical files
+
+# Visual Studio LightSwitch build output
+
+# Paket dependency manager
+
+# FAKE - F# Make
+
+# CodeRush personal settings
+
+# Python Tools for Visual Studio (PTVS)
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+
+# Telerik's JustMock configuration file
+
+# BizTalk build output
+
+# OpenCover UI analysis results
+
+# Azure Stream Analytics local run output
+
+# MSBuild Binary and Structured Log
+
+# NVidia Nsight GPU debugger configuration file
+
+# MFractors (Xamarin productivity tool) working folder
+
+# Local History for Visual Studio
+
+# Visual Studio History (VSHistory) files
+
+# BeatPulse healthcheck temp database
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+
+# Ionide (cross platform F# VS Code tools) working folder
+
+# Fody - auto-generated XML schema
+
+# VS Code files for those working on multiple tools
+
+# Local History for Visual Studio Code
+
+# Windows Installer files from build outputs
+
+# JetBrains Rider
+
+### VisualStudio Patch ###
+# Additional files built by Visual Studio
+
+# End of https://www.toptal.com/developers/gitignore/api/csharp,visualstudio

CleanSolutionDir.ps1

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+Get-ChildItem -Path $PSScriptroot -Recurse -Force  -Include '.vs', '.git', 'bin', 'obj', '.idea', '*.Dotsettings', '*.Dotsettings.user' | ForEach-Object {
+    Remove-Item -Recurse -Force -LiteralPath $_.FullName >$null
+}

EM-Qual.Test/Data/empty_02.csv

@@ -0,0 +1 @@
+Home;Guest;GoalsHome;GoalsGuest

EM-Qual.Test/Data/invalid_01.csv

@@ -0,0 +1,4 @@
+Home;Guest;GoalsHome;GoalsGuest;Diff
+Belgien;Deutschland;0;1;1
+Kasachstan;Türkei;0;3;3
+Deutschland;Aserbaidschan;6;1;5

EM-Qual.Test/Data/invalid_02.csv

@@ -0,0 +1,4 @@
+Home;Guest;GoalsHome;GoalsGuest
+Belgien;Deutschland;0;1
+Kasachstan;Türkei;0;3
+Deutschland;;6;1

EM-Qual.Test/Data/valid.csv

@@ -0,0 +1,4 @@
+Home;Guest;GoalsHome;GoalsGuest
+Belgien;Deutschland;0;1
+Kasachstan;Türkei;0;3
+Deutschland;Aserbaidschan;6;1

EM-Qual.Test/EM-Qual.Test.csproj

@@ -0,0 +1,47 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+	<ImplicitUsings>enable</ImplicitUsings>
+    <IsPackable>false</IsPackable>
+	<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.0" />
+    <PackageReference Include="xunit" Version="2.9.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+    <PackageReference Include="coverlet.collector" Version="6.0.2">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\EM-Qual\EM-Qual.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Update="Data\empty_01.csv">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="Data\empty_02.csv">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+	  <None Update="Data\invalid_01.csv">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="Data\invalid_02.csv">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="Data\valid.csv">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
+</Project>

EM-Qual.Test/QualDataTests.cs

@@ -0,0 +1,177 @@
+using FluentAssertions;
+using Xunit;
+
+namespace EMQual.Test;
+
+public sealed class QualDataTests
+{
+    [Fact]
+    public void IsCountryMatch_None()
+    {
+        Match match = new(new TeamResult("Foo", 1), new TeamResult("Bar", 2));
+
+        QualData.IsCountryMatch(match, "Baz")
+            .Should().BeFalse("Country did not play in this match");
+    }
+
+    [Fact]
+    public void IsCountryMatch_Home()
+    {
+        const string Country = "Baz";
+        Match match = new(new TeamResult(Country, 1), new TeamResult("Bar", 2));
+
+        QualData.IsCountryMatch(match, Country)
+            .Should().BeTrue("Country participated in match");
+    }
+
+    [Fact]
+    public void IsCountryMatch_Guest()
+    {
+        const string Country = "Baz";
+        Match match = new(new TeamResult("Foo", 1), new TeamResult(Country, 2));
+
+        QualData.IsCountryMatch(match, Country)
+            .Should().BeTrue("Country participated in match");
+    }
+
+    [Fact]
+    public void FilterMatchesByCountry_None()
+    {
+        var matches = new Match[]
+        {
+            new(new TeamResult("Foo", 3), new TeamResult("Bar", 0)),
+            new(new TeamResult("Foo", 1), new TeamResult("Qux", 1))
+        };
+
+        QualData.FilterMatchesByCountry(matches, "Baz")
+            .Should().NotBeNull("array has been created")
+            .And.BeEmpty("no matches for the supplied country");
+    }
+
+    [Fact]
+    public void FilterMatchesByCountry_Simple()
+    {
+        var matches = new Match[]
+        {
+            new(new TeamResult("Foo", 3), new TeamResult("Bar", 0)),
+            new(new TeamResult("Qux", 1), new TeamResult("Foo", 1)),
+            new(new TeamResult("Bar", 1), new TeamResult("Qux", 2))
+        };
+
+        QualData.FilterMatchesByCountry(matches, "Foo")
+            .Should().NotBeNull("array has been created")
+            .And.HaveCount(2, "country participated in two matches")
+            .And.Contain(new[] { matches[0], matches[1] });
+    }
+
+    [Fact]
+    public void ExtractUniqueCountryNames_Simple()
+    {
+        var matches = new Match[]
+        {
+            new(new TeamResult("Foo", 3), new TeamResult("Bar", 0)),
+            new(new TeamResult("Qux", 1), new TeamResult("Foo", 1)),
+            new(new TeamResult("Bar", 1), new TeamResult("Qux", 2)),
+            new(new TeamResult("Baz", 3), new TeamResult("Qux", 1))
+        };
+
+        QualData.ExtractUniqueCountryNames(matches)
+            .Should().NotBeNull("array has been created")
+            .And.HaveCount(4, "number of different countries in all matches")
+            .And.Contain(new[] { "Foo", "Bar", "Qux", "Baz" }, "names of the countries");
+    }
+
+    [Fact]
+    public void IsContained_Empty()
+    {
+        QualData.IsContained("Foo", Array.Empty<string>())
+            .Should().BeFalse("array is empty");
+    }
+
+    [Fact]
+    public void IsContained_NotContained()
+    {
+        var possValues = new[] { "Bar", "Baz", "Qux" };
+
+        QualData.IsContained("Foo", possValues)
+            .Should().BeFalse("value not contained");
+    }
+
+    [Fact]
+    public void IsContained_Contained()
+    {
+        var possValues = new[] { "Bar", "Baz", "Foo", "Qux" };
+
+        QualData.IsContained("Foo", possValues)
+            .Should().BeTrue("value is contained");
+    }
+
+    [Fact]
+    public void IsContained_IgnoreCase()
+    {
+        var possValues = new[] { "Bar", "Baz", "Foo", "Qux" };
+
+        QualData.IsContained("fOo", possValues)
+            .Should().BeTrue("value is contained");
+    }
+
+    [Fact]
+    public void TryParseMatch_Simple()
+    {
+        const string Line = "Foo;Bar;2;3";
+
+        QualData.TryParseMatch(Line, out var parsedMatch)
+            .Should().BeTrue("valid line could be parsed");
+
+        parsedMatch.Should().NotBeNull("successful parse, instance created")
+            .And.BeEquivalentTo(new Match(new TeamResult("Foo", 2), 
+                    new TeamResult("Bar", 3)));
+    }
+
+    [Theory]
+    [InlineData("Foo;Bar;2;-3", "invalid goals")]
+    [InlineData("Foo;Bar;t;3", "invalid goals")]
+    [InlineData("Foo;Bar;2", "missing value")]
+    [InlineData("Foo;Bar;2;1;4", "superfluous value")]
+    [InlineData("Foo;1;Bar;2", "wrong order")]
+    [InlineData("Foo;;1;2", "empty name")]
+    [InlineData("Foo-Bar-1-2", "invalid separator")]
+    public void TryParseMatch_Invalid(string line, string reason)
+    {
+        QualData.TryParseMatch(line, out var parsedMatch)
+            .Should().BeFalse($"line could not be parsed: {reason}");
+
+        parsedMatch.Should().BeNull("parsing failed, no instance created");
+    }
+
+    [Fact]
+    public void ReadMatchesFromFile_Simple()
+    {
+        var expectedMatches = new Match[]
+        {
+            new(new TeamResult("Belgien", 0), new TeamResult("Deutschland", 1)),
+            new(new TeamResult("Kasachstan", 0), new TeamResult("Türkei", 3)),
+            new(new TeamResult("Deutschland", 6), new TeamResult("Aserbaidschan", 1))
+        };
+
+        var matches = QualData.ReadMatchesFromFile("Data/valid.csv");
+
+        matches.Should().NotBeNullOrEmpty("valid file containing valid matches processed")
+            .And.HaveCount(3, "three matches defined in the file")
+            .And.ContainInOrder(expectedMatches, "how the matches should have been parsed");
+    }
+
+    [Theory]
+    [InlineData("Data/none.csv", "the file does not exist, so no entries could be parsed")]
+    [InlineData("Data/empty_01.csv", "the file exists but is empty, so no entries could be parsed")]
+    [InlineData("Data/empty_02.csv", "the file exists but contains only the header, so no entries could be parsed")]
+    [InlineData("Data/invalid_01.csv", "the file contains unexpected information, so parsing failed")]
+    [InlineData("Data/invalid_02.csv", "the file contains an invalid entry, so none are returned")]
+    public void ReadMatchesFromFile_Invalid(string filePath, string reason)
+    {
+        QualData.ReadMatchesFromFile(filePath)
+            .Should().NotBeNull("an array is created and returned in any case")
+            .And.HaveCount(0, reason)
+            .And.BeSameAs(Array.Empty<Match>(), "empty array created properly");
+    }
+}

EM-Qual.sln

@@ -0,0 +1,30 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.32126.317
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "EM-Qual", "EM-Qual\EM-Qual.csproj", "{F687519F-3209-44B6-81BF-DDD2466FEEF2}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "EM-Qual.Test", "EM-Qual.Test\EM-Qual.Test.csproj", "{C0CE7914-5D5B-4C90-A993-A8F8CC7002E8}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F687519F-3209-44B6-81BF-DDD2466FEEF2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F687519F-3209-44B6-81BF-DDD2466FEEF2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F687519F-3209-44B6-81BF-DDD2466FEEF2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F687519F-3209-44B6-81BF-DDD2466FEEF2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C0CE7914-5D5B-4C90-A993-A8F8CC7002E8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C0CE7914-5D5B-4C90-A993-A8F8CC7002E8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C0CE7914-5D5B-4C90-A993-A8F8CC7002E8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C0CE7914-5D5B-4C90-A993-A8F8CC7002E8}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {B7BD828E-2CBE-4D53-BA50-CC9536773BE0}
+	EndGlobalSection
+EndGlobal

EM-Qual/Data/matches.csv

@@ -0,0 +1,24 @@
+Home;Guest;GoalsHome;GoalsGuest
+Belgien;Deutschland;0;1
+Kasachstan;Türkei;0;3
+Deutschland;Aserbaidschan;6;1
+Österreich;Kasachstan;2;0
+Türkei;Belgien;3;2
+Kasachstan;Belgien;0;2
+Österreich;Aserbaidschan;3;0
+Deutschland;Türkei;3;0
+Aserbaidschan;Türkei;1;0
+Kasachstan;Deutschland;0;3
+Belgien;Österreich;4;4
+Österreich;Belgien;0;2
+Deutschland;Kasachstan;4;0
+Türkei;Österreich;2;0
+Belgien;Aserbaidschan;4;1
+Kasachstan;Aserbaidschan;2;1
+Österreich;Deutschland;1;2
+Belgien;Türkei;1;1
+Aserbaidschan;Deutschland;1;3
+Aserbaidschan;Belgien;1;1
+Türkei;Kasachstan;2;1
+Deutschland;Österreich;6;2
+Österreich;Türkei;0;0

EM-Qual/EM-Qual.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<OutputType>Exe</OutputType>
+		<TargetFramework>net8.0</TargetFramework>
+		<ImplicitUsings>enable</ImplicitUsings>
+		<Nullable>enable</Nullable>
+		<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+	</PropertyGroup>
+
+	<ItemGroup>
+	  <None Update="Data\matches.csv">
+	    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+	  </None>
+	</ItemGroup>
+	
+</Project>

EM-Qual/Model.cs

@@ -0,0 +1,15 @@
+namespace EMQual;
+
+/// <summary>
+///     Match result for a single team.
+/// </summary>
+/// <param name="TeamName">Name of the team</param>
+/// <param name="Goals">Number of goals scored by this team</param>
+public record TeamResult(string TeamName, int Goals);
+
+/// <summary>
+///     Match results for one game.
+/// </summary>
+/// <param name="HomeTeam">Match result for the home team</param>
+/// <param name="GuestTeam">Match result for the guest team</param>
+public record Match(TeamResult HomeTeam, TeamResult GuestTeam);

EM-Qual/Program.cs

@@ -0,0 +1,7 @@
+using System.Text;
+using EMQual;
+
+Console.OutputEncoding = Encoding.UTF8;
+
+Console.WriteLine($"*** EM Qualification Results ***{Environment.NewLine}");
+QualData.Run();

EM-Qual/QualData.cs

@@ -0,0 +1,117 @@
+namespace EMQual;
+
+public static class QualData
+{
+    /// <summary>
+    ///     Executes the <see cref="QualData"/> program.
+    /// </summary>
+    public static void Run()
+    {
+        var matches = ReadMatchesFromFile("Data/matches.csv");
+        PrintMatches(matches);
+        Console.WriteLine();
+
+        var countryNames = ExtractUniqueCountryNames(matches);
+        var selCountry = AskForCountry(countryNames);
+        var countryMatches = FilterMatchesByCountry(matches, selCountry);
+        PrintMatches(countryMatches);
+    }
+
+    /// <summary>
+    ///     Reads match information from a CSV file at the provided location.
+    ///     If the file does not exist or does not contain relevant or some
+    ///     corrupted data an empty array is returned.
+    /// </summary>
+    /// <param name="filePath">The relative path to the CSV file</param>
+    /// <returns>An array containing parsed match data records</returns>
+    public static Match[] ReadMatchesFromFile(string filePath)
+    {
+        // TODO
+        return [];
+    }
+
+    /// <summary>
+    ///     Attempts to parse a line with semicolon separated data for a match.
+    /// </summary>
+    /// <param name="line">Line to parse</param>
+    /// <param name="match">Parsed match object; null if parsing fails</param>
+    /// <returns>True if the line could be parsed successfully; false otherwise</returns>
+    public static bool TryParseMatch(string line, out Match? match)
+    {
+        // TODO
+        match = null;
+        return false;
+    }
+
+    /// <summary>
+    ///     Determines if the supplied string is contained in the provided array of strings.
+    ///     Case is ignored.
+    /// </summary>
+    /// <param name="value">Value to check for</param>
+    /// <param name="possibleValues">Array of values to check in</param>
+    /// <returns>True if the value is found; false otherwise</returns>
+    public static bool IsContained(string value, string[] possibleValues)
+    {
+        // TODO
+        return false;
+    }
+
+    /// <summary>
+    ///     Returns an array containing the names of all countries which have participated
+    ///     in at least one match exactly one time.
+    /// </summary>
+    /// <param name="matches">Array of all matches played</param>
+    /// <returns>An array of unique country names</returns>
+    public static string[] ExtractUniqueCountryNames(Match[] matches)
+    {
+        // TODO
+        return [];
+    }
+
+    /// <summary>
+    ///     Returns a new array of matches, based on the supplied full collection, but
+    ///     with filtered to only contain matches the provided country participated in.
+    /// </summary>
+    /// <param name="allMatches">Array of all matches played</param>
+    /// <param name="countryName">Name of the country to filter for</param>
+    /// <returns>Array of matches in which the supplied country participated</returns>
+    public static Match[] FilterMatchesByCountry(Match[] allMatches, string countryName)
+    {
+        // TODO
+        return [];
+    }
+
+    /// <summary>
+    ///     Determines if the supplied match is one the provided country participated in.
+    /// </summary>
+    /// <param name="match">Match to check</param>
+    /// <param name="countryName">Country for which to check</param>
+    /// <returns>True if the country participated in the match; false otherwise</returns>
+    public static bool IsCountryMatch(Match match, string countryName)
+    {
+        // TODO
+        return false;
+    }
+
+    /// <summary>
+    ///     Prints the matches to the terminal.
+    /// </summary>
+    /// <param name="matches">Array of matches to print</param>
+    private static void PrintMatches(Match[] matches)
+    {
+        // TODO
+    }
+
+    /// <summary>
+    ///     Asks the user to enter a country to filter for.
+    ///     The user can only enter one of the existing countries. Case is not relevant.
+    ///     If the user enters something invalid the input request is retried until the user gets it right.
+    /// </summary>
+    /// <param name="possibleCountries">Array containing the names of possible countries to pick from</param>
+    /// <returns>The name of the country the user selected</returns>
+    private static string AskForCountry(string[] possibleCountries)
+    {
+        // TODO
+        return string.Empty;
+    }
+}

readme.adoc

@@ -0,0 +1,30 @@
+:sectnums:
+:nofooter:
+:toc: left
+:icons: font
+
+= Exercise Rep.01 -- EM Qualification Data
+
+You have been provided with a file `matches.csv` which contains information about matches played during the qualification for a soccer EM.
+
+== Displaying Information
+
+This data has to be read and displayed in a specific format to the user.
+
+* Make sure to read & parse information from the CSV file properly
+* Handle invalid/corrupted data as well as missing or invalid files
+* Ensure to format the information as shown in the sample below
+
+== User Input & Processing
+
+The user can enter the name of one of the countries.
+Then all matches this country participated in are displayed (= filtered result set).
+
+* The user can only enter one of the existing countries
+* If the user input is invalid it is retried until a valid entry is made
+
+TIP: You might find `StringComparison.InvariantCultureIgnoreCase` useful.
+
+== Sample Run
+
+video::sample.mp4[width=800]