package com.example.marta.prob3;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

import java.text.DecimalFormat;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void onClick(View view){
        int capital_value = Integer.parseInt((((EditText)findViewById(R.id.capital_value_id)).getText().toString()));
        int interest_rate = Integer.parseInt((((EditText)findViewById(R.id.interet_rate_id)).getText().toString()));
        int loan_duration = Integer.parseInt((((EditText)findViewById(R.id.loan_durantion_id)).getText().toString()));

        DecimalFormat df2 = new DecimalFormat(".##");

        System.out.println("capital_value " + capital_value);
        System.out.println("interest_rate " + interest_rate);
        System.out.println("loan_duration " + loan_duration);

        double value = ((double)((double)interest_rate/100)/12);
        System.out.println("value " + value);
        double temp = Math.pow((1 + value), loan_duration);
        System.out.println("temp " + temp);
        double monthly = (capital_value * ((value * temp) / (temp - 1)));
        System.out.println("montlhy " + monthly);
        String total_payment = Integer.toString((int) monthly * loan_duration);
        String monthly_payment = df2.format(monthly);

        System.out.println("monthly_payment " + monthly_payment);
        System.out.println("total_payment " + total_payment);

        ((EditText)findViewById(R.id.monthly_payment_id)).setText(monthly_payment);
        ((EditText)findViewById(R.id.total_payment_id)).setText(total_payment);
    }
}