diff --git a/CalculatorApp/.gitattributes b/CalculatorApp/.gitattributes new file mode 100644 index 00000000..1ff0c423 --- /dev/null +++ b/CalculatorApp/.gitattributes @@ -0,0 +1,63 @@ +############################################################################### +# Set default behavior to automatically normalize line endings. +############################################################################### +* text=auto + +############################################################################### +# Set default behavior for command prompt diff. +# +# This is need for earlier builds of msysgit that does not have it on by +# default for csharp files. +# Note: This is only used by command line +############################################################################### +#*.cs diff=csharp + +############################################################################### +# Set the merge driver for project and solution files +# +# Merging from the command prompt will add diff markers to the files if there +# are conflicts (Merging from VS is not affected by the settings below, in VS +# the diff markers are never inserted). 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(y/n)")) + { + calculationsOngoing = false; + } + } + + if (!calculator.calculationsList.Any()) + { + Console.WriteLine("There are no calculations to view!"); + } + + else + { + if (AskYesOrNo("Would you like to view the previous calculations (y/n)")) + { + viewCalculations(calculator); + + bool deleteCalculations = AskYesOrNo("Would you like to delete these calculations? (y/n)"); + + if (deleteCalculations == false) + { + if (AskYesOrNo("Would you like to use a previous result in another calculation? (y/n)")) + { + if (calculator.calculationsList.Any()) + { + startingNum = UseCalculation(calculator); + + } + else + { + Console.WriteLine("THere are no previous calculations available!"); + } + calculationsOngoing = true; + continue; + } + } + else + { + calculator.DeleteCalculations(); + calculationsOngoing = true; + } + + } + } + + Console.WriteLine("------------------------\n"); + + Console.Write("Press 'n' and Enter to close the app, or press any other key and Enter to continue: "); + if (Console.ReadLine() == "n") endApp = true; + + Console.WriteLine("\n"); + + } + + calculator.Finish(); + return; + } + + public static bool AskYesOrNo(string prompt) + { + Console.WriteLine(prompt); + string? userInput = Console.ReadLine(); + + if (userInput?.ToLower() == "y") return true; + else return false; + + } + + public static void AskCalculationInput(Calculator calculatorInstance, string firstNum = "") + { + double result; + double cleanNum; + double cleanNum2 = 0; + string secondNum = ""; + string op; + if (firstNum == "") + { + Console.Write("Type a number, and then press Enter: "); + firstNum = Console.ReadLine(); + } + + while (!double.TryParse(firstNum, out cleanNum)) + { + Console.Write("This is not valid input. Please enter a numeric value: "); + firstNum = Console.ReadLine(); + } + + Console.WriteLine("Choose an operator from the following list:"); + Console.WriteLine("\ta - Add"); + Console.WriteLine("\ts - Subtract"); + Console.WriteLine("\tm - Multiply"); + Console.WriteLine("\td - Divide"); + Console.WriteLine("\tsr - Square Root"); + Console.WriteLine("\tp - To The Power"); + Console.WriteLine("\tx10 - Times Ten"); + Console.Write("Your option? "); + + op = Console.ReadLine(); + + while (op == null || !Regex.IsMatch(op, "^(a|s|m|d|sr|p|x10)$")) + { + Console.WriteLine("Error: Unrecognised input. Please enter a valid operator!"); + op = Console.ReadLine(); + } + + if (op != "sr" && op != "x10") + { + Console.Write("Type another number, and then press Enter: "); + secondNum = Console.ReadLine(); + + while (!double.TryParse(secondNum, out cleanNum2)) + { + Console.Write("This is not valid input. Please enter a numeric value: "); + secondNum = Console.ReadLine(); + } + } + + try + { + if (op == "sr") + { + result = GetSquareRoot(cleanNum); + secondNum = "0"; + } + + else if (op == "x10") + { + result = calculatorInstance.DoOperation(cleanNum, cleanNum, op); + secondNum = "10"; + } + + else + { + result = calculatorInstance.DoOperation(cleanNum, cleanNum2, op); + } + + + if (double.IsNaN(result)) + { + Console.WriteLine("This operation will result in a mathematical error.\n"); + } + else + { + Console.WriteLine("Your result is : {0:0.##}\n", result); + calculatorInstance.storeCalculations(firstNum, secondNum, op, result); + } + } + catch (Exception e) + { + Console.WriteLine("Oh no! An exception occured trying to do the math.\n - Details: " + e.Message); + } + } + + public static void viewCalculations(Calculator calculator) + { + Console.WriteLine("-----Calculations-----"); + int displayNumber = 1; + foreach (string calculation in calculator.calculationsList) + { + Console.WriteLine($"{displayNumber}: {calculation}"); + displayNumber++; + } + + Console.WriteLine("Press Enter to continue."); + Console.ReadLine(); + } + + public static string UseCalculation(Calculator calculator) + { + Console.WriteLine("Which result would you like to use?"); + while (true) + { + if (int.TryParse(Console.ReadLine(), out int indexOfCalculation) && indexOfCalculation > 0 && indexOfCalculation <= calculator.calculationsList.Count) + { + indexOfCalculation--; + + string resultString = calculator.calculationsList[indexOfCalculation]; + + resultString = resultString.Split('=').Last().Trim(); + + Console.WriteLine($"First number is: {resultString}"); + + return resultString; + } + else + { + Console.WriteLine("Please enter a valid number!"); + } + } + } + + public static double GetSquareRoot(double number1) + { + return Math.Sqrt(number1); + + } + } +} diff --git a/CalculatorApp/CalculatorLibrary/CalculatorLibrary.cs b/CalculatorApp/CalculatorLibrary/CalculatorLibrary.cs new file mode 100644 index 00000000..582ac119 --- /dev/null +++ b/CalculatorApp/CalculatorLibrary/CalculatorLibrary.cs @@ -0,0 +1,144 @@ +using Newtonsoft.Json; +namespace CalculatorLibrary +{ + public class Calculator + { + public int calculations = 0; + public List calculationsList = new(); + readonly JsonWriter writer; + + public Calculator() + { + StreamWriter logFile = File.CreateText("calculator.json"); + logFile.AutoFlush = true; + writer = new JsonTextWriter(logFile); + writer.Formatting = Formatting.Indented; + writer.WriteStartObject(); + writer.WritePropertyName("Operations"); + writer.WriteStartArray(); + + } + public double DoOperation(double num1, double num2, string op) + { + double result = double.NaN; + writer.WriteStartObject(); + writer.WritePropertyName("Operand1"); + writer.WriteValue(num1); + writer.WritePropertyName("Operand2"); + writer.WriteValue(num2); + writer.WritePropertyName("Operation"); + + switch (op) + { + case "a": + result = num1 + num2; + writer.WriteValue("Add"); + break; + case "s": + result = num1 - num2; + writer.WriteValue("Subtract"); + + break; + case "m": + result = num1 * num2; + writer.WriteValue("Multiply"); + + break; + case "d": + if (num2 != 0) + { + result = num1 / num2; + } + writer.WriteValue("Divide"); + break; + case "p": + result = Math.Pow(num1, num2); + writer.WriteValue("Power"); + break; + case "x10": + result = num1 * 10; + writer.WriteValue("Times Ten"); + break; + default: + break; + } + writer.WritePropertyName("Result"); + writer.WriteValue(result); + + calculations++; + writer.WriteEndObject(); + + return result; + + } + + public void storeCalculations(string num1, string num2, string op, double result) + { + string calculationToString = ""; + switch (op) + { + case "a": + op = "+"; + break; + case "s": + op = "-"; + break; + case "m": + op = "*"; + break; + case "d": + op = "/"; + break; + case "sr": + op = "√"; + break; + case "p": + op = "^"; + break; + case "x10": + op = "x10"; + break; + } + + if (op == "√") + { + calculationToString = $"{op}{num1} = {result}"; + + writer.WriteStartObject(); + writer.WritePropertyName("Operand1"); + if (double.TryParse(num1, out double cleanNum)) writer.WriteValue(cleanNum); + else writer.WriteValue(num1); + + writer.WritePropertyName("Operand2"); + writer.WriteValue(0); + + writer.WritePropertyName("Operation"); + writer.WriteValue("SquareRoot"); + + writer.WritePropertyName("Result"); + writer.WriteValue(result); + writer.WriteEndObject(); + + calculations++; + } + + else calculationToString = $"{num1} {op} {num2} = {result}"; + + calculationsList.Add(calculationToString); + } + + public void DeleteCalculations() + { + calculationsList.Clear(); + } + + public void Finish() + { + writer.WriteEndArray(); + writer.WritePropertyName("Total Calculations"); + writer.WriteValue(calculations); + writer.WriteEndObject(); + writer.Close(); + } + } +} diff --git a/CalculatorApp/CalculatorLibrary/CalculatorLibrary.csproj b/CalculatorApp/CalculatorLibrary/CalculatorLibrary.csproj new file mode 100644 index 00000000..22badd14 --- /dev/null +++ b/CalculatorApp/CalculatorLibrary/CalculatorLibrary.csproj @@ -0,0 +1,13 @@ + + + + net10.0 + enable + enable + + + + + + +