/*
  This file is part of Subsonic.
    Subsonic is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    Subsonic 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 Subsonic. If not, see <http://www.gnu.org/licenses/>.
    Copyright 2014 (C) Scott Jackson
*/

package net.nullsum.audinaut.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.AlertDialog;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Spinner;

import net.nullsum.audinaut.R;
import net.nullsum.audinaut.domain.Genre;
import net.nullsum.audinaut.service.MusicService;
import net.nullsum.audinaut.service.MusicServiceFactory;
import net.nullsum.audinaut.service.OfflineException;
import net.nullsum.audinaut.util.Constants;
import net.nullsum.audinaut.util.LoadingTask;
import net.nullsum.audinaut.util.Util;

import java.util.ArrayList;
import java.util.List;

public class EditPlayActionActivity extends SubsonicActivity {
    private CheckBox shuffleCheckbox;
    private CheckBox startYearCheckbox;
    private EditText startYearBox;
    private CheckBox endYearCheckbox;
    private EditText endYearBox;
    private Button genreButton;
    private Spinner offlineSpinner;

    private String doNothing;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setTitle(R.string.tasker_start_playing_title);
        setContentView(R.layout.edit_play_action);
        final Activity context = this;
        doNothing = context.getResources().getString(R.string.tasker_edit_do_nothing);

        shuffleCheckbox = findViewById(R.id.edit_shuffle_checkbox);
        shuffleCheckbox.setOnCheckedChangeListener((view, isChecked) -> {
            startYearCheckbox.setEnabled(isChecked);
            endYearCheckbox.setEnabled(isChecked);
            genreButton.setEnabled(isChecked);
        });

        startYearCheckbox = findViewById(R.id.edit_start_year_checkbox);
        startYearBox = findViewById(R.id.edit_start_year);
        // Disable/enable number box if checked
        startYearCheckbox.setOnCheckedChangeListener((view, isChecked) -> startYearBox.setEnabled(isChecked));

        endYearCheckbox = findViewById(R.id.edit_end_year_checkbox);
        endYearBox = findViewById(R.id.edit_end_year);
        endYearCheckbox.setOnCheckedChangeListener((view, isChecked) -> endYearBox.setEnabled(isChecked));

        genreButton = findViewById(R.id.edit_genre_spinner);
        genreButton.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                new LoadingTask<List<Genre>>(context, true) {
                    @Override
                    protected List<Genre> doInBackground() throws Throwable {
                        MusicService musicService = MusicServiceFactory.getMusicService(context);
                        return musicService.getGenres(false, context, this);
                    }

                    @Override
                    protected void done(final List<Genre> genres) {
                        List<String> names = new ArrayList<>();
                        String blank = context.getResources().getString(R.string.select_genre_blank);
                        names.add(doNothing);
                        names.add(blank);
                        for (Genre genre : genres) {
                            names.add(genre.getName());
                        }
                        final List<String> finalNames = names;

                        AlertDialog.Builder builder = new AlertDialog.Builder(context);
                        builder.setTitle(R.string.shuffle_pick_genre)
                                .setItems(names.toArray(new CharSequence[names.size()]), (dialog, which) -> {
                                    if (which == 1) {
                                        genreButton.setText("");
                                    } else {
                                        genreButton.setText(finalNames.get(which));
                                    }
                                });
                        AlertDialog dialog = builder.create();
                        dialog.show();
                    }

                    @Override
                    protected void error(Throwable error) {
                        String msg;
                        if (error instanceof OfflineException) {
                            msg = getErrorMessage(error);
                        } else {
                            msg = context.getResources().getString(R.string.playlist_error) + " " + getErrorMessage(error);
                        }

                        Util.toast(context, msg, false);
                    }
                }.execute();
            }
        });
        genreButton.setText(doNothing);

        offlineSpinner = findViewById(R.id.edit_offline_spinner);
        ArrayAdapter<CharSequence> offlineAdapter = ArrayAdapter.createFromResource(this, R.array.editServerOptions, android.R.layout.simple_spinner_item);
        offlineAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        offlineSpinner.setAdapter(offlineAdapter);

        // Setup default for everything
        Bundle extras = getIntent().getBundleExtra(Constants.TASKER_EXTRA_BUNDLE);
        if (extras != null) {
            if (extras.getBoolean(Constants.INTENT_EXTRA_NAME_SHUFFLE)) {
                shuffleCheckbox.setChecked(true);
            }

            String startYear = extras.getString(Constants.PREFERENCES_KEY_SHUFFLE_START_YEAR, null);
            if (startYear != null) {
                startYearCheckbox.setEnabled(true);
                startYearBox.setText(startYear);
            }
            String endYear = extras.getString(Constants.PREFERENCES_KEY_SHUFFLE_END_YEAR, null);
            if (endYear != null) {
                endYearCheckbox.setEnabled(true);
                endYearBox.setText(endYear);
            }

            String genre = extras.getString(Constants.PREFERENCES_KEY_SHUFFLE_GENRE, doNothing);
            if (genre != null) {
                genreButton.setText(genre);
            }

            int offline = extras.getInt(Constants.PREFERENCES_KEY_OFFLINE, 0);
            if (offline != 0) {
                offlineSpinner.setSelection(offline);
            }
        }

        drawer.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater menuInflater = getMenuInflater();
        menuInflater.inflate(R.menu.tasker_configuration, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            cancel();
            return true;
        } else if (item.getItemId() == R.id.menu_accept) {
            accept();
            return true;
        } else if (item.getItemId() == R.id.menu_cancel) {
            cancel();
            return true;
        }

        return false;
    }

    private void accept() {
        Intent intent = new Intent();

        String blurb = getResources().getString(shuffleCheckbox.isChecked() ? R.string.tasker_start_playing_shuffled : R.string.tasker_start_playing);
        intent.putExtra("com.twofortyfouram.locale.intent.extra.BLURB", blurb);

        // Get settings user specified
        Bundle data = new Bundle();
        boolean shuffle = shuffleCheckbox.isChecked();
        data.putBoolean(Constants.INTENT_EXTRA_NAME_SHUFFLE, shuffle);
        if (shuffle) {
            if (startYearCheckbox.isChecked()) {
                data.putString(Constants.PREFERENCES_KEY_SHUFFLE_START_YEAR, startYearBox.getText().toString());
            }
            if (endYearCheckbox.isChecked()) {
                data.putString(Constants.PREFERENCES_KEY_SHUFFLE_END_YEAR, endYearBox.getText().toString());
            }
            String genre = genreButton.getText().toString();
            if (!genre.equals(doNothing)) {
                data.putString(Constants.PREFERENCES_KEY_SHUFFLE_GENRE, genre);
            }
        }

        int offline = offlineSpinner.getSelectedItemPosition();
        if (offline != 0) {
            data.putInt(Constants.PREFERENCES_KEY_OFFLINE, offline);
        }

        intent.putExtra(Constants.TASKER_EXTRA_BUNDLE, data);

        setResult(Activity.RESULT_OK, intent);
        finish();
    }

    private void cancel() {
        setResult(Activity.RESULT_CANCELED);
        finish();
    }
}