DDM 2021-11-23

package com.joythis.android.distanceindays;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.NumberPicker;

import java.util.Calendar;

public class InputDateActivity extends AppCompatActivity {
    Intent mCaller;
    NumberPicker mNpYear, mNpMonth, mNpDay;
    Button mBtnConfirmDate, mBtnCancel;

    View.OnClickListener mClickHandler = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            switch(v.getId()){
                case R.id.idBtnConfirmDate:
                    actionConfirmDate();
                    break;
                case R.id.idBtnCancel:
                    actionCancel();
                    break;
            }//switch
        }//onClick
    };//mClickHandler

    void actionConfirmDate(){
        Intent intentResult = new Intent(
            InputDateActivity.this,
            MainActivity.class
        );
        int y,m,d;
        y = mNpYear.getValue();
        m = mNpMonth.getValue();
        d = mNpDay.getValue();

        String strDate = String.format(
            "%d-%d-%d", y,m,d
        );
        //like this
        intentResult.putExtra("DATE", strDate);

        //or like this
        intentResult.putExtra("RESULT_YEAR", y);
        intentResult.putExtra("RESULT_MONTH", m);
        intentResult.putExtra("RESULT_DAY", d);

        int iToWhichDateAmIRespondingTo = 1;
        if (mCaller!=null){
            iToWhichDateAmIRespondingTo =
                mCaller.getIntExtra("DATE", 1);
        }

        intentResult.putExtra(
            "RESULT_DATE",
            iToWhichDateAmIRespondingTo
        );

        setResult(
            RESULT_OK,
            intentResult
        );
        finish();
    }//actionConfirmDate

    void actionCancel(){
        setResult(
            RESULT_CANCELED
        );
        finish();
    }//actionCancel

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.cl_input_date_v1);

        init();
    }//onCreate

    void init(){
        mCaller = getIntent();
        //bindings
        mNpYear = findViewById(R.id.idNpYear);
        mNpMonth = findViewById(R.id.idNpMonth);
        mNpDay = findViewById(R.id.idNpDay);

        //set limits on the NumberPickers
        mNpYear.setMinValue(1);
        mNpYear.setMaxValue(3021);

        mNpMonth.setMinValue(1);
        mNpMonth.setMaxValue(12);

        mNpDay.setMinValue(1);
        mNpDay.setMaxValue(31);

        //TODO - current date
        Calendar c = Calendar.getInstance();
        mNpYear.setValue(c.get(Calendar.YEAR));
        mNpMonth.setValue(c.get(Calendar.MONTH)+1);
        mNpDay.setValue(c.get(Calendar.DATE));

        mBtnConfirmDate = findViewById(R.id.idBtnConfirmDate);
        mBtnCancel = findViewById(R.id.idBtnCancel);

        mBtnConfirmDate.setOnClickListener(mClickHandler);
        mBtnCancel.setOnClickListener(mClickHandler);

        //behaviors
    }//init
}