import java.util.*;
import java.text.DecimalFormat;
public class MainApplication {
    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        CoreFeatures cor = new CoreFeatures();

        CustomFeatureDistance cust = new CustomFeatureDistance();

        CoreAl cal =new CoreAl();
        ScientificAl sci=new ScientificAl();
        CustomFeatureTemperature custom= new CustomFeatureTemperature();

        double calculationResult = 0;

        double conversionResult = 0;

        double mem = 0;

        //double defaultCalcResult = 0;
        //System.out.println("Enter a command: ");

        //consider using boolean to store the first calculation (first numb)
        while (true) {
            try
            {

                double defaultCalcResult = 0;

                System.out.println("Enter a command: ");
                if (calculationResult != 0) {
                    System.out.println(calculationResult);
                }else {
                    System.out.println(defaultCalcResult);
                }

                //User input
                String command = input.next();

                //Makes the current display 0
                if (command.equalsIgnoreCase("C")){
                    calculationResult = defaultCalcResult;
                    System.out.println("Clear!");

                    //System.out.println("Enter a command: ");
                }
                //Turn off calculator
                if (command.equalsIgnoreCase("exit")){
                    System.out.print("Thanks for calculating with us!");   
                    break;
                }

                //Display Mode
                if (command.equalsIgnoreCase("DisplayMode")){
                    String userInput = Console.getStringInput(
                            "Please enter in the desired mode: \n \"Bin\" - for binary \n \"Oct\" - for octal \n \"Dec\" - for deciaml \n \"Hex\" - for hexadeciaml");

                    if (userInput.equalsIgnoreCase("Bin")){
                        int userInputBin = Console.getIntegerInput("Please enter the integer value you wish to convert: ");
                        System.out.println("Current value in binary is: " + Integer.toBinaryString(userInputBin));
                    }
                    if (userInput.equalsIgnoreCase("Oct")){
                        int userInputBin = Console.getIntegerInput("Please enter the integer value you wish to convert: ");
                        System.out.println("Current value in octal is: " + Integer.toOctalString(userInputBin));
                    }
                    if (userInput.equalsIgnoreCase("Dec")){
                        int userInputBin = Console.getIntegerInput("Please enter the integer value you wish to convert: ");
                        DecimalFormat decimalValue = new DecimalFormat("#");
                        String value = decimalValue.format(userInputBin);
                        System.out.println("Current value in deciaml is: " + value);
                    }
                    if (userInput.equalsIgnoreCase("Hex")){
                        int userInputBin = Console.getIntegerInput("Please enter the integer value you wish to convert: ");
                        System.out.println("Current value in hexadecimal is: " + Integer.toHexString(userInputBin));
                    }
                }
                //aleeena
                //double calculationResult=0.0;
                
                //while

                //Scanner input = new Scanner(System.in);
                /* double defaultCalcResult = 0.0;
                if (calculationResult != 0.0) {
                System.out.printf("\nCurrent Value :%.2f",calculationResult);
                }else {
                System.out.printf("\nCurrent Value :%.2f",defaultCalcResult);
                }
                System.out.print("\nEnter a command: ");

                String command = input.next();
                if (command.equalsIgnoreCase("C")){
                calculationResult = defaultCalcResult;
                System.out.println("Clear!");
                }
                //String command = input.next();
                if (command.equalsIgnoreCase("exit")){
                System.out.print("Thanks for calculating with us!\n");   
                break;
                }*/
                if (command.equalsIgnoreCase("square")){

                    if(calculationResult!=0.00)
                    {
                        double num=calculationResult;
                        calculationResult=cal.square(num);
                        Console.printDouble(calculationResult);
                    }
                    else
                    {
                        double num=Console.getDoubleInput("Enter the number :");
                        calculationResult=cal.square(num);
                        Console.printDouble(calculationResult);

                    }
                }
                if(command.equalsIgnoreCase("squareroot"))
                {
                    if(calculationResult!=0.00)
                    {
                        double num=calculationResult;
                        calculationResult=cal.squareroot(num);
                        Console.printDouble(calculationResult);
                    }
                    else
                    {
                        double num=Console.getDoubleInput("Enter the number :");
                        calculationResult=cal.squareroot(num);
                        Console.printDouble(calculationResult);
                    }
                }
                if(command.equalsIgnoreCase("exponent"))
                {
                    if(calculationResult!=0.00)
                    {
                        double power=Console.getDoubleInput("Enter the power");
                        calculationResult=cal.exponent(calculationResult,power);
                        Console.printDouble(calculationResult);

                    }
                    else
                    {
                        double base=Console.getDoubleInput("Enter the base value");

                        double power=Console.getDoubleInput("Enter the power");
                        calculationResult=cal.exponent(base,power);
                        Console.printDouble(calculationResult);
                    }
                }
                if(command.equalsIgnoreCase("inverse"))
                {
                    if(calculationResult!=0.00)
                    {
                        calculationResult=cal.inverse(calculationResult);
                        Console.printDouble(calculationResult);
                    }
                    else
                    {
                        double num=Console.getDoubleInput("Enter the number");
                        calculationResult=cal.inverse(num);
                        Console.printDouble(calculationResult);
                    }
                }
                if(command.equalsIgnoreCase("invert"))
                {
                    if(calculationResult!=0.00)
                    {
                        calculationResult=cal.invertsign(calculationResult);
                        Console.printDouble(calculationResult);
                    }
                    else
                    {
                        double num=Console.getDoubleInput("Enter the number");
                        calculationResult=cal.invertsign(num);
                        Console.printDouble(calculationResult);
                    }

                }
                if(command.equalsIgnoreCase("sin"))
                {

                    double number=Console.getDoubleInput("Enter the degree");
                    double result=sci.sine(number);
                    Console.printDouble(result);
                    
                    calculationResult=0;

                }
                if(command.equalsIgnoreCase("cos"))
                {

                    double number=Console.getDoubleInput("Enter the degree");
                    double result=sci.cosine(number);
                    Console.printDouble(result);
                    
                    calculationResult=0;

                }
                if(command.equalsIgnoreCase("tan"))
                {

                    double number=Console.getDoubleInput("Enter the degree");
                    double result=sci.tangent(number);
                    Console.printDouble(result);
                    
                    calculationResult=0;

                }
                if(command.equalsIgnoreCase("inversesin"))
                {

                    String mode=Console.getStringInput
                        ("Type in \"D\" for Degree output\nType in \"R\" to Radians output");

                    if(mode.equalsIgnoreCase("D"))
                    {
                        double number=Console.getDoubleInput("\nEnter the value :");
                        calculationResult=sci.inversesinDegree(number);
                        Console.printDouble(calculationResult);
                        
                        calculationResult=0;
                    }
                    else if(mode.equalsIgnoreCase("R"))
                    {
                        double number=Console.getDoubleInput("\nEnter the value :");
                        calculationResult=sci.inversesinRadian(number);
                        Console.printDouble(calculationResult);
                        
                        calculationResult=0;
                    }
                }
                if(command.equalsIgnoreCase("inversecos"))
                {
                    String mode=Console.getStringInput
                        ("Type in \"D\" for Degree output\nType in \"R\" to Radians output");

                    if(mode.equalsIgnoreCase("D"))
                    {
                        double number=Console.getDoubleInput("\nEnter the value :");
                        calculationResult=sci.inversecosDegree(number);
                        
                        Console.printDouble(calculationResult);
                        calculationResult=0;
                    }
                    else if(mode.equalsIgnoreCase("R"))
                    {
                        double number=Console.getDoubleInput("\nEnter the value :");
                        calculationResult=sci.inversecosRadians(number);
                        Console.printDouble(calculationResult);
                        
                        calculationResult=0;
                    }
                }
                if(command.equalsIgnoreCase("inversetan"))
                {
                    String mode=Console.getStringInput
                        ("Type in \"D\" for Degree output\nType in \"R\" to Radians output");

                    if(mode.equalsIgnoreCase("D"))
                    {
                        double number=Console.getDoubleInput("\nEnter the value :");
                        calculationResult=sci.inversetanDegree(number);
                        Console.printDouble(calculationResult);
                        
                        calculationResult=0;
                    }
                    else if(mode.equalsIgnoreCase("R"))
                    {
                        double number=Console.getDoubleInput("\nEnter the value :");
                        calculationResult=sci.inversetanRadians(number);
                        Console.printDouble(calculationResult);
                        
                        calculationResult=0;
                    }
                }

                    
                if(command.equalsIgnoreCase("temperature"))
                {
                    String userInput = Console.getStringInput
                        ("Type in \"c\" to convert Celcius to Farhenheit\nType in \"f\" to convert Farhenheit to Celcius");

                    if(userInput.equalsIgnoreCase("c"))
                    {
                        double temp=Console.getDoubleInput("\nEnter the temperature in Celcius :");
                        double result=custom.celciustoFarhenheat(temp);
                        //System.out.println(temp+"Celcius to f
                        
                        calculationResult = result;
                        Console.printDouble(result);
                    }

                    else if(userInput.equalsIgnoreCase("f"))
                    {
                        double temp=Console.getDoubleInput("\nEnter the temperature in Farhenheit :");
                        double result=custom.farhenheatTocelcius(temp);
                        
                        calculationResult = result;
                        Console.printDouble(result);

                    }

                }

                if(command.equalsIgnoreCase("unit"))
                {
                    String userInput=Console.getStringInput
                    ("Type in \"D\" to convert Degree to Radians\nType in \"R\" to convert Radians to Degree");
                    if(userInput.equalsIgnoreCase("D"))
                    {
                        double deg=Console.getDoubleInput("\nType in Degree to display the Radian value:");
                        double result=sci.degToradian(deg);
                        //System.out.println(temp+"Celcius to f
                        Console.printDouble(result);

                    }
                    if(userInput.equalsIgnoreCase("R"))
                    {
                        double rad=Console.getDoubleInput("\nType in Radian to display the Degree value:");
                        double result=sci.radToDegree(rad);
                        Console.printDouble(result);

                    }
                }
            

                //if (userInput.equalsIgnoreCase("Oct"))

            
                //Memory
                if (command.equalsIgnoreCase("Memory")){
                    double memInput = Console.getDoubleInput("Please enter in a numeric value to save: ");
                    mem = memInput;
                    System.out.println("The value (" + mem + ") has been saved to the memory.");
                }
                //Memory +
                if (command.equalsIgnoreCase("M+")){
                    double memAdd = mem + calculationResult;
                    //calculationResult = memAdd;
                    System.out.println("Saved value (" + mem + ") has been added to the current value (" + calculationResult + ").");
                    calculationResult = memAdd;
                }
                //Memory reset
                if (command.equalsIgnoreCase("MC")){
                    if (mem != 0){
                        mem = 0;
                        System.out.println("Reset memory value.");
                    }
                    else{
                        System.out.println("Reset memory value.");
                    }
                }
                //Display memory
                if (command.equalsIgnoreCase("MRC")){
                    calculationResult = mem;
                    System.out.println("Recall memory value.");
                }

                //Addition
                if (command.equalsIgnoreCase("add")){
                    if(calculationResult != 0){
                        double firstNumb = calculationResult;
                        double secondNumb = Console.getDoubleInput("Type in the second number you wish to add: ");
                        calculationResult = firstNumb + secondNumb;

                        //double x = calculationResult;

                        //calculationResult = cor.add(x);

                        defaultCalcResult = calculationResult;
                    }
                    else{
                        double firstNumb = Console.getDoubleInput("Type in the first number you wish to add: ");
                        double secondNumb = Console.getDoubleInput("Type in the second number you wish to add: ");
                        calculationResult = firstNumb + secondNumb;
                        defaultCalcResult = calculationResult;
                    }
                    //double firstNumb = Console.getDoubleInput("Type in the first number you wish to add: ");
                    //double secondNumb = Console.getDoubleInput("Type in the second number you wish to add: ");

                    //calculationResult = firstNumb + secondNumb;
                    //defaultCalcResult = calculationResult;

                    System.out.println("The sum of two number is: " + calculationResult);
                    //Console.println(firstNumb);

                }

                //Subtraction
                if (command.equalsIgnoreCase("subtract")){
                    if(calculationResult != 0){
                        double firstNumb = calculationResult;
                        double secondNumb = Console.getDoubleInput("Type in the second number you wish to subtract: ");

                        calculationResult = cor.subtract(firstNumb, secondNumb);

                        defaultCalcResult = calculationResult;
                    }
                    else{
                        double firstNumb = Console.getDoubleInput("Type in the first number you wish to subtract: ");
                        double secondNumb = Console.getDoubleInput("Type in the second number you wish to subtract: ");

                        calculationResult = cor.subtract(firstNumb, secondNumb);

                        defaultCalcResult = calculationResult;
                    }

                    System.out.println("The difference of the two number is: " + calculationResult);

                }

                //Multiplication
                if (command.equalsIgnoreCase("multiply")){
                    if(calculationResult != 0){
                        double firstNumb = calculationResult;
                        double secondNumb = Console.getDoubleInput("Type in the second number you wish to multiply: ");

                        calculationResult = cor.multiply(firstNumb, secondNumb);

                        System.out.println("The multiplication of the two number is: " + calculationResult);
                    }
                    else{
                        double firstNumb = Console.getDoubleInput("Type in the first number you wish to multiply: ");
                        double secondNumb = Console.getDoubleInput("Type in the second number you wish to multiply: ");

                        calculationResult = cor.multiply(firstNumb, secondNumb);

                        System.out.println("The multiplication of the two number is: " + calculationResult);
                    }
                }

                //Division
                if (command.equalsIgnoreCase("divide")){
                    if (calculationResult != 0){
                        double firstNumb = calculationResult;
                        double secondNumb = Console.getDoubleInput("Type in the divisor: ");

                        calculationResult = cor.divide(firstNumb, secondNumb);

                        System.out.println("The division of the two number is: " + calculationResult);
                    }
                    else{
                        double firstNumb = Console.getDoubleInput("Type in the dividend: ");
                        double secondNumb = Console.getDoubleInput("Type in the divisor: ");

                        calculationResult = firstNumb / secondNumb;

                        System.out.println("The division of the two number is: " + calculationResult);
                    }
                }

                //Distance conversion *Custom Feature*
                if (command.equalsIgnoreCase("distance")){
                    //System.out.println("[Current distance is set to Km]");

                    String userInput = Console.getStringInput(
                        "Please select from the following options: \nType in \"km \"to convert Kilometers to Miles\nType in \"Mi \"to convert Miles to Kilometers");
                    //Kilimeter conversion
                    if (userInput.equalsIgnoreCase("km")){
                        double firstNumb = Console.getDoubleInput(
                                "Type in the numeric distance you wish to convert to miles: ");

                        conversionResult = cust.kmToMiles(firstNumb);

                        calculationResult = conversionResult;

                        System.out.println(firstNumb + "Km(s) in mile(s) is: " + calculationResult);
                    }

                    //Mile conversion
                    if(userInput.equalsIgnoreCase("Mi")){
                        double firstNumb = Console.getDoubleInput(
                                "Type in the numeric distance you wish to convert to kilometers: ");

                        conversionResult = cust.milesToKm(firstNumb);

                        calculationResult = conversionResult;

                        System.out.println(firstNumb + "mile(s) in Km(s) is: " + calculationResult);
                    }
                }

                    // else{
                    // System.out.println("Invalid command! Please enter a valid command");
                    // }
                

                // Console.println("Welcome to my calculator!");
                // String s = Console.getStringInput("Enter a string");
                // Integer i = Console.getIntegerInput("Enter an integer");
                // Double d = Console.getDoubleInput("Enter a double.");

                // Console.println("The user input %s as a string", s);
                // Console.println("The user input %s as a integer", i);
                // Console.println("The user input %s as a d", d);

                //String output = Console.getStringInput("type something");
                //Console.println(output);

                //public void runCommandLoop() 
                // Scanner input = new Scanner(System.in);
                // Scanner input2 = new Scanner(System.in);

                // while (true) {
                // System.out.print("Enter a command: ");
                // String command = input.next();
                // if (command.equalsIgnoreCase("exit")){
                // System.out.print("Thanks for calculating with us!");   
                // break;
                // }
                // if (command.equalsIgnoreCase("add")){
                // double firstNumb = Console.getDoubleInput("Type in the first number you wish to add: ");
                // double secondNumb = Console.getDoubleInput("Type in the second number you wish to add: ");

                // //Console.println(firstNumb);
                // }

                // }

            }
            
        
            catch(Exception e)
            {
                System.out.println("An error has occured");
                continue;
            }
            
      }
    


    }
}