/**
 * Write a description of class ScientificFeatures here.
 */
public class ScientificFeatures
{
   Console console = new Console();
    // instance variables - replace the example below with your own
    public int Mode = 10;
    public String trigOptions= "degrees";
    public double M;
    public String displayMode = "Decimal";
    /**
     * Constructor for objects of class ScientificFeatures
     */
   public ScientificFeatures(Console c)
    {
        
     console = c;
    }

    /**
     * A method
     */
    public  int switchDisplayMode(String value){
        int[] modeOptions= new int[]{2,8,10,16};
        
        if(value.equals("")){
            if(Mode == 2){
                Mode = modeOptions[1];
                displayMode = "Octal";
            }
            else if(Mode == 8){
                Mode = modeOptions[2];
                displayMode = "Decimal";
            }
            else if(Mode == 10){
                Mode = modeOptions[3];
                displayMode = "Hexadecimal";
            }
            else if(Mode == 16){
                Mode = modeOptions[0];
                displayMode = "Binary";
            }
        }
        else if(value.equals("decimal")){
            Mode = modeOptions[2];
            displayMode = "Decimal";
        }    
        else if(value.equals("binary")){
            Mode = modeOptions[0];
            displayMode = "Binary";
        }
        else if(value.equals("octal")){
            Mode = modeOptions[1];
            displayMode = "Octal";
        }
        else if(value.equals("hexadecimal")){
            Mode = modeOptions[3];
            displayMode = "Hexadecimal";
        }
        else{
            System.out.print("Invalid choice try again");
            Mode = Mode;
        }

        return Mode;
    }

    public  String switchUnitsMode(String value){

        if(value.equals("")){
            if(trigOptions.equals("degrees")){
                trigOptions = "radians";
            }
            else if(trigOptions.equals("radians")){
                trigOptions = "degrees";
            }
        }
        else if(value.equals("degrees")){
            trigOptions = "degrees";
        }    
        else if(value.equals("radians")){
            trigOptions = "radians";
        }
        else{
            System.out.print("Invalid choice try again");
            trigOptions= trigOptions;
        }

        return trigOptions;
    }

    public  double sine(double value){

        if (trigOptions.equals("degrees")){
            value = Math.toRadians(value);
        }

        return console.changeCurrentValue(Math.sin(value));
    }

    public  double cosine(double value){

        if (trigOptions.equals("degrees")){
            if (value == 90){
                return console.changeCurrentValue(0);
            }
            value = Math.toRadians(value);
        }

        return console.changeCurrentValue(Math.cos(value));
    }

    public  double tangent(double value){

        if (trigOptions.equals("degrees")){
            value = Math.toRadians(value);
        }

        return console.changeCurrentValue(Math.tan(value));
    }

    public  double invSine(double value){

        if (trigOptions.equals("degrees")){
            value = Math.toRadians(value);
        }

        return console.changeCurrentValue(Math.asin(value));
    }


        

    public  double invCosine(double value){
        value = Math.toRadians(value);


        if (trigOptions.equals("degrees")){
            value = Math.toRadians(value);
        }

        return console.changeCurrentValue(Math.acos(value));
    }

    public  double invTangent(double value){
        value = Math.toRadians(value);
        if (trigOptions.equals("degrees")){
            value = Math.toRadians(value);
        }

        return console.changeCurrentValue(Math.atan(value));
    }

    
}