add csharp version to the exercice

csharp/.gitignore

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+.DS_Store
+bin/
+obj/
+.vs/
+.vscode/

csharp/TheatricalPlayersRefactoringKata.Tests/StatementPrinterTests.cs

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+using System;
+using System.Collections.Generic;
+using ApprovalTests;
+using ApprovalTests.Reporters;
+using Xunit;
+
+namespace TheatricalPlayersRefactoringKata.Tests
+{
+    public class StatementPrinterTests
+    {
+        [Fact]
+        [UseReporter(typeof(DiffReporter))]
+        public void test_statement_exemple()
+        {
+            var plays = new Dictionary<string, Play>();
+            plays.Add("hamlet", new Play("Hamlet", "tragedy"));
+            plays.Add("as-like", new Play("As You Like It", "comedy"));
+            plays.Add("othello", new Play("Othello", "tragedy"));
+
+            Invoice invoice = new Invoice("BigCo", new List<Performance>{new Performance("hamlet", 55),
+                new Performance("as-like", 35),
+                new Performance("othello", 40)});
+            
+            StatementPrinter statementPrinter = new StatementPrinter();
+            var result = statementPrinter.Print(invoice, plays);
+
+            Approvals.Verify(result);
+        }
+        [Fact]
+        public void test_statement_with_new_play_types()
+        {
+            var plays = new Dictionary<string, Play>();
+            plays.Add("henry-v", new Play("Henry V", "history"));
+            plays.Add("as-like", new Play("As You Like It", "pastoral"));
+
+            Invoice invoice = new Invoice("BigCoII", new List<Performance>{new Performance("henry-v", 53),
+                new Performance("as-like", 55)});
+            
+            StatementPrinter statementPrinter = new StatementPrinter();
+
+            Assert.Throws<Exception>(() => statementPrinter.Print(invoice, plays));
+        }
+    }
+}

csharp/TheatricalPlayersRefactoringKata.Tests/StatementPrinterTests.test_statement_exemple.approved.txt

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+Statement for BigCo
+  Hamlet: $650.00 (55 seats)
+  As You Like It: $580.00 (35 seats)
+  Othello: $500.00 (40 seats)
+Amount owed is $1,730.00
+You earned 47 credits

csharp/TheatricalPlayersRefactoringKata.Tests/TheatricalPlayersRefactoringKata.Tests.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
+
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="ApprovalTests" Version="4.0.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.0.1" />
+    <PackageReference Include="xunit" Version="2.4.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\TheatricalPlayersRefactoringKata\TheatricalPlayersRefactoringKata.csproj" />
+  </ItemGroup>
+
+</Project>

csharp/TheatricalPlayersRefactoringKata.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.26124.0
+MinimumVisualStudioVersion = 15.0.26124.0
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TheatricalPlayersRefactoringKata", "TheatricalPlayersRefactoringKata\TheatricalPlayersRefactoringKata.csproj", "{B380BB58-50A5-435D-9B52-5045A2F93761}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TheatricalPlayersRefactoringKata.Tests", "TheatricalPlayersRefactoringKata.Tests\TheatricalPlayersRefactoringKata.Tests.csproj", "{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Debug|x64.Build.0 = Debug|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Debug|x86.Build.0 = Debug|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Release|x64.ActiveCfg = Release|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Release|x64.Build.0 = Release|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Release|x86.ActiveCfg = Release|Any CPU
+		{B380BB58-50A5-435D-9B52-5045A2F93761}.Release|x86.Build.0 = Release|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Debug|x64.Build.0 = Debug|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Debug|x86.Build.0 = Debug|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Release|Any CPU.Build.0 = Release|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Release|x64.ActiveCfg = Release|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Release|x64.Build.0 = Release|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Release|x86.ActiveCfg = Release|Any CPU
+		{47FAD5CE-0FB3-4C9F-A430-68E58A1B094F}.Release|x86.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

csharp/TheatricalPlayersRefactoringKata/Invoice.cs

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+using System.Collections.Generic;
+
+namespace TheatricalPlayersRefactoringKata
+{
+    public class Invoice
+    {
+        private string _customer;
+        private List<Performance> _performances;
+
+        public string Customer { get => _customer; set => _customer = value; }
+        public List<Performance> Performances { get => _performances; set => _performances = value; }
+
+        public Invoice(string customer, List<Performance> performance)
+        {
+            this._customer = customer;
+            this._performances = performance;
+        }
+
+    }
+}

csharp/TheatricalPlayersRefactoringKata/Performance.cs

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+namespace TheatricalPlayersRefactoringKata
+{
+    public class Performance
+    {
+        private string _playID;
+        private int _audience;
+
+        public string PlayID { get => _playID; set => _playID = value; }
+        public int Audience { get => _audience; set => _audience = value; }
+
+        public Performance(string playID, int audience)
+        {
+            this._playID = playID;
+            this._audience = audience;
+        }
+
+    }
+}

csharp/TheatricalPlayersRefactoringKata/Play.cs

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+namespace TheatricalPlayersRefactoringKata
+{
+    public class Play
+    {
+        private string _name;
+        private string _type;
+
+        public string Name { get => _name; set => _name = value; }
+        public string Type { get => _type; set => _type = value; }
+
+        public Play(string name, string type) {
+            this._name = name;
+            this._type = type;
+        }
+    }
+}

csharp/TheatricalPlayersRefactoringKata/StatementPrinter.cs

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+using System;
+using System.Collections.Generic;
+using System.Globalization;
+
+namespace TheatricalPlayersRefactoringKata
+{
+    public class StatementPrinter
+    {
+        public string Print(Invoice invoice, Dictionary<string, Play> plays)
+        {
+            var totalAmount = 0;
+            var volumeCredits = 0;
+            var result = string.Format("Statement for {0}\n", invoice.Customer);
+            CultureInfo cultureInfo = new CultureInfo("en-US");
+
+            foreach(var perf in invoice.Performances) 
+            {
+                var play = plays[perf.PlayID];
+                var thisAmount = 0;
+                switch (play.Type) 
+                {
+                    case "tragedy":
+                        thisAmount = 40000;
+                        if (perf.Audience > 30) {
+                            thisAmount += 1000 * (perf.Audience - 30);
+                        }
+                        break;
+                    case "comedy":
+                        thisAmount = 30000;
+                        if (perf.Audience > 20) {
+                            thisAmount += 10000 + 500 * (perf.Audience - 20);
+                        }
+                        thisAmount += 300 * perf.Audience;
+                        break;
+                    default:
+                        throw new Exception("unknown type: " + play.Type);
+                }
+                // add volume credits
+                volumeCredits += Math.Max(perf.Audience - 30, 0);
+                // add extra credit for every ten comedy attendees
+                if ("comedy" == play.Type) volumeCredits += (int)Math.Floor((decimal)perf.Audience / 5);
+
+                // print line for this order
+                result += String.Format(cultureInfo, "  {0}: {1:C} ({2} seats)\n", play.Name, Convert.ToDecimal(thisAmount / 100), perf.Audience);
+                totalAmount += thisAmount;
+            }
+            result += String.Format(cultureInfo, "Amount owed is {0:C}\n", Convert.ToDecimal(totalAmount / 100));
+            result += String.Format("You earned {0} credits\n", volumeCredits);
+            return result;
+        }
+    }
+}

csharp/TheatricalPlayersRefactoringKata/TheatricalPlayersRefactoringKata.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.0</TargetFramework>
+  </PropertyGroup>
+
+</Project>