package org.tasks.preferences;

import android.content.Intent;
import android.os.Bundle;
import android.preference.Preference;

import com.todoroo.astrid.activity.BeastModePreferences;
import com.todoroo.astrid.api.Filter;

import org.tasks.LocalBroadcastManager;
import org.tasks.R;
import org.tasks.activities.FilterSelectionActivity;
import org.tasks.analytics.Tracker;
import org.tasks.analytics.Tracking;
import org.tasks.dialogs.SeekBarDialog;
import org.tasks.injection.ActivityComponent;
import org.tasks.injection.InjectingPreferenceActivity;
import org.tasks.locale.Locale;

import javax.inject.Inject;

import static org.tasks.dialogs.SeekBarDialog.newSeekBarDialog;

public class AppearancePreferences extends InjectingPreferenceActivity implements SeekBarDialog.SeekBarCallback {

    private static final int REQUEST_CUSTOMIZE = 1004;
    private static final int REQUEST_DEFAULT_LIST = 1005;
    private static final int REQUEST_ROW_PADDING = 1006;
    private static final int REQUEST_FONT_SIZE = 1007;
    private static final String FRAG_TAG_ROW_PADDING_SEEKBAR = "frag_tag_row_padding_seekbar";
    private static final String FRAG_TAG_FONT_SIZE_SEEKBAR = "frag_tag_font_size_seekbar";

    private static final String EXTRA_BUNDLE = "extra_bundle";
    public static final String EXTRA_RESTART = "extra_restart";
    public static final String EXTRA_FILTERS_CHANGED = "extra_filters_changed";

    @Inject Preferences preferences;
    @Inject DefaultFilterProvider defaultFilterProvider;
    @Inject Tracker tracker;
    @Inject LocalBroadcastManager localBroadcastManager;
    @Inject Locale locale;

    private Bundle result;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        result = savedInstanceState == null
                ? new Bundle()
                : savedInstanceState.getBundle(EXTRA_BUNDLE);

        addPreferencesFromResource(R.xml.preferences_appearance);

        setExtraOnChange(R.string.p_fontSize, EXTRA_RESTART);
        setExtraOnChange(R.string.p_rowPadding, EXTRA_RESTART);
        setExtraOnChange(R.string.p_fullTaskTitle, EXTRA_RESTART);
        setExtraOnChange(R.string.p_show_today_filter, EXTRA_FILTERS_CHANGED);
        setExtraOnChange(R.string.p_show_recently_modified_filter, EXTRA_FILTERS_CHANGED);
        setExtraOnChange(R.string.p_show_not_in_list_filter, EXTRA_FILTERS_CHANGED);
        findPreference(getString(R.string.customize_edit_screen)).setOnPreferenceClickListener(preference -> {
            startActivityForResult(new Intent(AppearancePreferences.this, BeastModePreferences.class), REQUEST_CUSTOMIZE);
            return true;
        });

        findPreference(R.string.p_fontSize).setOnPreferenceClickListener(preference -> {
            newSeekBarDialog(R.layout.dialog_font_size_seekbar, 10, 48, preferences.getFontSize(), REQUEST_FONT_SIZE)
                    .show(getFragmentManager(), FRAG_TAG_FONT_SIZE_SEEKBAR);
            return false;
        });
        updateFontSize();

        findPreference(R.string.p_rowPadding).setOnPreferenceClickListener(preference -> {
            newSeekBarDialog(R.layout.dialog_font_size_seekbar, 0, 16, preferences.getRowPadding(), REQUEST_ROW_PADDING)
                    .show(getFragmentManager(), FRAG_TAG_ROW_PADDING_SEEKBAR);
            return false;
        });
        updateRowPadding();
        Preference defaultList = findPreference(getString(R.string.p_default_list));
        Filter filter = defaultFilterProvider.getDefaultFilter();
        defaultList.setSummary(filter.listingTitle);
        defaultList.setOnPreferenceClickListener(preference -> {
            Intent intent = new Intent(AppearancePreferences.this, FilterSelectionActivity.class);
            intent.putExtra(FilterSelectionActivity.EXTRA_RETURN_FILTER, true);
            startActivityForResult(intent, REQUEST_DEFAULT_LIST);
            return true;
        });
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        outState.putBundle(EXTRA_BUNDLE, result);
    }

    @Override
    public void finish() {
        Intent data = new Intent();
        data.putExtras(result);
        setResult(RESULT_OK, data);
        super.finish();
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQUEST_CUSTOMIZE) {
            if (resultCode == RESULT_OK) {
                result.putBoolean(EXTRA_RESTART, true);
            }
        } else if (requestCode == REQUEST_DEFAULT_LIST) {
            if (resultCode == RESULT_OK) {
                Filter filter = data.getParcelableExtra(FilterSelectionActivity.EXTRA_FILTER);
                defaultFilterProvider.setDefaultFilter(filter);
                findPreference(getString(R.string.p_default_list)).setSummary(filter.listingTitle);
                localBroadcastManager.broadcastRefresh();
            }
        } else {
            super.onActivityResult(requestCode, resultCode, data);
        }
    }

    private void setExtraOnChange(final int resId, final String extra) {
        findPreference(getString(resId)).setOnPreferenceChangeListener((preference, newValue) -> {
            tracker.reportEvent(Tracking.Events.SET_PREFERENCE, resId, newValue.toString());
            result.putBoolean(extra, true);
            return true;
        });
    }

    @Override
    public void inject(ActivityComponent component) {
        component.inject(this);
    }

    @Override
    public void valueSelected(int value, int requestCode) {
        int resId = 0;
        if (requestCode == REQUEST_ROW_PADDING) {
            preferences.setInt(R.string.p_rowPadding, value);
            updateRowPadding();
            resId = R.string.p_rowPadding;
        } else if (requestCode == REQUEST_FONT_SIZE) {
            preferences.setInt(R.string.p_fontSize, value);
            updateFontSize();
            resId = R.string.p_fontSize;
        }
        if (resId > 0) {
            result.putBoolean(EXTRA_RESTART, true);
            tracker.reportEvent(Tracking.Events.SET_PREFERENCE, resId, Integer.toString(value));
        }
    }

    private void updateFontSize() {
        findPreference(R.string.p_fontSize).setSummary(locale.formatNumber(preferences.getFontSize()));
    }

    private void updateRowPadding() {
        findPreference(R.string.p_rowPadding).setSummary(locale.formatNumber(preferences.getRowPadding()));
    }
}