Import the old repositories.

.gitignore

@@ -0,0 +1,2 @@
+*.iml
+.idea/

README.md

@@ -13,3 +13,22 @@ The goal is to support the following new feature as best as you can:
 5. 🔧 Refactor the code.
 6. 🔧 Refactor the test.
 7. 👼 Test-drive the new feature.
+
+## Supported Languages
+The ExpenseReport example currently exists in the following languages:
+- [C](expensereport-c/)
+- [C#](expensereport-csharp/)
+- [C++](expensereport-cxx/)
+- [Go](expensereport-go/)
+- [Java](expensereport-java/)
+- [JavaScript](expensereport-javascript/)
+- [Kotlin](expensereport-kotlin/)
+- [Python](expensereport-python/)
+- [Rust](expensereport-rust/)
+- [TypeScript](expensereport-typescript/)
+
+## Credits
+I first encountered the ExpenseReport example during a bootcamp at Equal Experts.
+I also have seen the ExpenseReport example being used by Robert "Uncle Bob" C. Martin.
+I have tried to research its origins but so far I have failed.
+If you know who has first come up with this example, please get in touch with me.

expensereport-c/.gitignore

@@ -0,0 +1 @@
+*.[adios]

expensereport-c/ExpenseReport.c

@@ -0,0 +1,53 @@
+#include <stdio.h>
+#include <time.h>
+
+enum Type {
+    DINNER,
+    BREAKFAST,
+    CAR_RENTAL
+};
+
+struct Expense {
+    enum Type type;
+    int amount;
+};
+
+void printExpenses(struct Expense *expenses[], size_t numExpenses) {
+    int total = 0;
+    int mealExpenses = 0;
+
+    time_t now;
+    if (time(&now) == -1)
+        return;
+
+    printf("Expenses %s\n", ctime(&now));
+
+    for (size_t i = 0; i < numExpenses; i++) {
+        struct Expense *expense = expenses[i];
+
+        if (expense->type == DINNER || expense->type == BREAKFAST) {
+            mealExpenses += expense->amount;
+        }
+
+        char *expenseName;
+        switch (expense->type) {
+        case DINNER:
+            expenseName = "Dinner";
+            break;
+        case BREAKFAST:
+            expenseName = "Breakfast";
+            break;
+        case CAR_RENTAL:
+            expenseName = "Car Rental";
+            break;
+        }
+
+        char *mealOverExpensesMarker = ((expense->type == DINNER && expense->amount > 5000) || (expense->type == BREAKFAST && expense->amount > 1000)) ? "X" : " ";
+
+        printf("%s\t%d\t%s\n", expenseName, expense->amount, mealOverExpensesMarker);
+        total += expense->amount;
+    }
+
+    printf("Meal expenses: %d\n", mealExpenses);
+    printf("Total expenses: %d\n", total);
+}

expensereport-c/Makefile

@@ -0,0 +1,11 @@
+CPPFLAGS:=-MMD
+CFLAGS:=-W -Wall -pedantic -Werror
+
+.PHONY: all
+all: ExpenseReport.o
+
+.PHONY: clean
+clean::
+	$(RM) *.[adios]
+
+-include *.d

expensereport-c/README.md

@@ -0,0 +1,3 @@
+# Expense Report C
+
+Kata for Coding Dojos.

expensereport-csharp/.gitignore

@@ -0,0 +1,4 @@
+bin/
+obj/
+/packages/
+.idea

expensereport-csharp/expensereport-csharp.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "expensereport-csharp", "expensereport-csharp\expensereport-csharp.csproj", "{4D670DD0-5E29-49CE-AFE9-F5C7ACDB89D0}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "expensereport-ut", "expensereport-ut\expensereport-ut.csproj", "{07C2B482-2F0F-4B66-9F09-9D9505C9466E}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{4D670DD0-5E29-49CE-AFE9-F5C7ACDB89D0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4D670DD0-5E29-49CE-AFE9-F5C7ACDB89D0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4D670DD0-5E29-49CE-AFE9-F5C7ACDB89D0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4D670DD0-5E29-49CE-AFE9-F5C7ACDB89D0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{07C2B482-2F0F-4B66-9F09-9D9505C9466E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{07C2B482-2F0F-4B66-9F09-9D9505C9466E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{07C2B482-2F0F-4B66-9F09-9D9505C9466E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{07C2B482-2F0F-4B66-9F09-9D9505C9466E}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

expensereport-csharp/expensereport-csharp/Class1.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+
+namespace expensereport_csharp
+{
+    public enum ExpenseType
+    {
+        DINNER, BREAKFAST, CAR_RENTAL
+    }
+
+    public class Expense
+    {
+        public ExpenseType type;
+        public int amount;
+    }
+
+    public class ExpenseReport
+    {
+        public void PrintReport(List<Expense> expenses)
+        {
+            int total = 0;
+            int mealExpenses = 0;
+
+            Console.WriteLine("Expenses " + DateTime.Now);
+
+            foreach (Expense expense in expenses)
+            {
+                if (expense.type == ExpenseType.DINNER || expense.type == ExpenseType.BREAKFAST)
+                {
+                    mealExpenses += expense.amount;
+                }
+
+                String expenseName = "";
+                switch (expense.type)
+                {
+                    case ExpenseType.DINNER:
+                        expenseName = "Dinner";
+                        break;
+                    case ExpenseType.BREAKFAST:
+                        expenseName = "Breakfast";
+                        break;
+                    case ExpenseType.CAR_RENTAL:
+                        expenseName = "Car Rental";
+                        break;
+                }
+
+                String mealOverExpensesMarker =
+                    expense.type == ExpenseType.DINNER && expense.amount > 5000 ||
+                    expense.type == ExpenseType.BREAKFAST && expense.amount > 1000
+                        ? "X"
+                        : " ";
+
+                Console.WriteLine(expenseName + "\t" + expense.amount + "\t" + mealOverExpensesMarker);
+
+                total += expense.amount;
+            }
+
+            Console.WriteLine("Meal expenses: " + mealExpenses);
+            Console.WriteLine("Total expenses: " + total);
+        }
+    }
+}

expensereport-csharp/expensereport-csharp/expensereport-csharp.csproj

@@ -0,0 +1,8 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netcoreapp2.2</TargetFramework>
+        <RootNamespace>expensereport_csharp</RootNamespace>
+    </PropertyGroup>
+
+</Project>

expensereport-csharp/expensereport-ut/UnitTest1.cs

@@ -0,0 +1,18 @@
+using NUnit.Framework;
+
+namespace Tests
+{
+    public class Tests
+    {
+        [SetUp]
+        public void Setup()
+        {
+        }
+
+        [Test]
+        public void Test1()
+        {
+            Assert.Pass();
+        }
+    }
+}

expensereport-csharp/expensereport-ut/expensereport-ut.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netcoreapp2.2</TargetFramework>
+
+        <IsPackable>false</IsPackable>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="nunit" Version="3.11.0"/>
+        <PackageReference Include="NUnit3TestAdapter" Version="3.11.0"/>
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0"/>
+    </ItemGroup>
+
+</Project>

expensereport-cxx/.gitignore

@@ -0,0 +1 @@
+*.[adios]

expensereport-cxx/ExpenseReport.cpp

@@ -0,0 +1,55 @@
+#include <chrono>
+#include <iostream>
+#include <iterator>
+#include <list>
+
+using namespace std;
+
+enum Type
+{
+    BREAKFAST, DINNER, CAR_RENTAL
+};
+
+class Expense
+{
+    public:
+    Type type;
+    int amount;
+};
+
+void printReport(list<Expense> expenses)
+{
+    int total = 0;
+    int mealExpenses = 0;
+
+    auto now = chrono::system_clock::to_time_t(chrono::system_clock::now());
+    cout << "Expenses " << ctime(&now) << '\n';
+
+    for (list<Expense>::iterator expense = expenses.begin(); expense != expenses.end(); ++expense) {
+        if (expense->type == BREAKFAST || expense->type == DINNER) {
+            mealExpenses += expense->amount;
+        }
+
+        string expenseName = "";
+        switch (expense->type) {
+        case DINNER:
+            expenseName = "Dinner";
+            break;
+        case BREAKFAST:
+            expenseName = "Breakfast";
+            break;
+        case CAR_RENTAL:
+            expenseName = "Car Rental";
+            break;
+        }
+
+        string mealOverExpensesMarker = (expense->type == DINNER && expense->amount > 5000) || (expense->type == BREAKFAST && expense->amount > 1000) ? "X" : " ";
+
+        cout << expenseName << '\t' << expense->amount << '\t' << mealOverExpensesMarker << '\n';
+
+        total += expense->amount;
+    }
+
+    cout << "Meal expenses: " << mealExpenses << '\n';
+    cout << "Total expenses: " << total << '\n';
+}

expensereport-cxx/Makefile

@@ -0,0 +1,11 @@
+CPPFLAGS:=-MMD
+CXXFLAGS:=-W -Wall -pedantic -Werror
+
+.PHONY: all
+all: ExpenseReport.o
+
+.PHONY: clean
+clean::
+	$(RM) *.[adios]
+
+-include *.d

expensereport-cxx/README.md

@@ -0,0 +1,3 @@
+# Expense Report C++
+
+Kata for Coding Dojos.

expensereport-go/Makefile

@@ -0,0 +1,3 @@
+.PHONY: all
+all:
+	go build ./...

expensereport-go/README.md

@@ -0,0 +1,3 @@
+# Expense Report Go
+
+Kata for Coding Dojos.

expensereport-go/expenses/expensereport.go

@@ -0,0 +1,55 @@
+package expenses
+
+import (
+    "fmt"
+    "time"
+)
+
+type Type int
+
+const (
+    DINNER Type = iota + 1
+    BREAKFAST
+    CAR_RENTAL
+)
+
+type Expense struct {
+    Type Type
+    Amount int
+}
+
+func printReport(expenses []Expense) {
+    total := 0
+    mealExpenses := 0
+
+    fmt.Printf("Expenses %s\n", time.Now().Format("2006-01-02"))
+
+    for _, expense := range expenses {
+        if expense.Type == DINNER || expense.Type == BREAKFAST {
+            mealExpenses += expense.Amount
+        }
+
+        var expenseName string
+        switch (expense.Type) {
+        case DINNER:
+            expenseName = "Dinner"
+        case BREAKFAST:
+            expenseName = "Breakfast"
+        case CAR_RENTAL:
+            expenseName = "Car Rental"
+        }
+
+        var mealOverExpensesMarker string
+        if expense.Type == DINNER && expense.Amount > 5000 || expense.Type == BREAKFAST && expense.Amount > 1000 {
+            mealOverExpensesMarker = "X"
+        } else {
+            mealOverExpensesMarker = " "
+        }
+
+        fmt.Printf("%s\t%d\t%s\n", expenseName, expense.Amount, mealOverExpensesMarker)
+        total += expense.Amount
+    }
+
+    fmt.Println("Meal expenses: %d\n", mealExpenses)
+    fmt.Println("Total expenses: %d\n", total)
+}

expensereport-java/.gitignore

@@ -0,0 +1,9 @@
+# IntelliJ IDEA
+.idea
+*.iml
+
+# make
+.User.mk
+
+# Maven
+target/