/**
 *   ownCloud Android client application
 *
 *   @author David A. Velasco
 *   Copyright (C) 2015 ownCloud Inc.
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2,
 *   as published by the Free Software Foundation.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package com.owncloud.android.ui.dialog;


import android.app.DatePickerDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.text.format.DateUtils;
import android.widget.DatePicker;
import android.widget.Toast;

import com.owncloud.android.datamodel.OCFile;
import com.owncloud.android.ui.activity.FileActivity;

import java.util.Calendar;
import java.util.Date;

/**
 *  Dialog requesting a date after today.
 */
public class ExpirationDatePickerDialogFragment
        extends DialogFragment
        implements DatePickerDialog.OnDateSetListener {

    /** Tag for FragmentsManager */
    public static final String DATE_PICKER_DIALOG = "DATE_PICKER_DIALOG";

    /** Constructor arguments */
    private static final String ARG_FILE = "ARG_FILE";

    /** File to bind an expiration date */
    private OCFile mFile;

    /**
     *  Factory method to create new instances
     *
     *  @param file     File to bind an expiration date
     *  @return         New dialog instance
     */
    public static ExpirationDatePickerDialogFragment newInstance(OCFile file) {
        Bundle arguments = new Bundle();
        arguments.putParcelable(ARG_FILE, file);

        ExpirationDatePickerDialogFragment dialog = new ExpirationDatePickerDialogFragment();
        dialog.setArguments(arguments);
        return dialog;
    }

    /**
     * {@inheritDoc}
     *
     * @return      A new dialog to let the user choose an expiration date that will be bound to a share link.
     */
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Load arguments
        mFile = getArguments().getParcelable(ARG_FILE);

        // Get current day
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);

        // Create a new instance of DatePickerDialog, highlighting "tomorrow" as chosen day
        DatePickerDialog dialog = new DatePickerDialog(getActivity(), this, year, month, day + 1);

        // Prevent days in the past may be chosen
        DatePicker picker = dialog.getDatePicker();
        picker.setMinDate(System.currentTimeMillis() + DateUtils.DAY_IN_MILLIS - 1000);

        // Enforce spinners view; ignored by MD-based theme in Android >=5, but calendar is REALLY buggy
        // in Android < 5, so let's be sure it never appears (in tablets both spinners and calendar are
        // shown by default)
        picker.setCalendarViewShown(false);

        return dialog;
    }

    /**
     * Called when the user choses an expiration date.
     *
     * @param view              View instance where the date was chosen
     * @param year              Year of the date chosen.
     * @param monthOfYear       Month of the date chosen [0, 11]
     * @param dayOfMonth        Day of the date chosen
     */
    @Override
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

        Calendar chosenDate = Calendar.getInstance();
        chosenDate.set(Calendar.YEAR, year);
        chosenDate.set(Calendar.MONTH, monthOfYear);
        chosenDate.set(Calendar.DAY_OF_MONTH, dayOfMonth);

        ((FileActivity)getActivity()).getFileOperationsHelper().setExpirationDateToShareViaLink(
                mFile,
                year,
                monthOfYear,
                dayOfMonth
        );
    }
}