/*
 * Copyright (C) 2014-2015 The CyanogenMod Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.settings.cyanogenmod;

import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Bundle;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.provider.SearchIndexableResource;
import android.provider.Settings;
import android.telephony.TelephonyManager;
import android.text.format.DateFormat;
import android.view.View;

import com.android.internal.logging.MetricsLogger;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.Utils;
import com.android.settings.search.BaseSearchIndexProvider;
import com.android.settings.search.Indexable;

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

import cyanogenmod.providers.CMSettings;

public class StatusBarSettings extends SettingsPreferenceFragment
        implements OnPreferenceChangeListener, Indexable {

    private static final String TAG = "StatusBar";

    private static final String STATUS_BAR_CLOCK_STYLE = "status_bar_clock";
    private static final String STATUS_BAR_AM_PM = "status_bar_am_pm";
    private static final String STATUS_BAR_BATTERY_STYLE = "status_bar_battery_style";
    private static final String STATUS_BAR_SHOW_BATTERY_PERCENT = "status_bar_show_battery_percent";
    private static final String STATUS_BAR_QUICK_QS_PULLDOWN = "qs_quick_pulldown";

    private static final int STATUS_BAR_BATTERY_STYLE_HIDDEN = 4;
    private static final int STATUS_BAR_BATTERY_STYLE_TEXT = 6;

    private ListPreference mStatusBarClock;
    private ListPreference mStatusBarAmPm;
    private ListPreference mStatusBarBattery;
    private ListPreference mStatusBarBatteryShowPercent;
    private ListPreference mQuickPulldown;

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        addPreferencesFromResource(R.xml.status_bar_settings);

        ContentResolver resolver = getActivity().getContentResolver();

        mStatusBarClock = (ListPreference) findPreference(STATUS_BAR_CLOCK_STYLE);
        mStatusBarAmPm = (ListPreference) findPreference(STATUS_BAR_AM_PM);
        mStatusBarBattery = (ListPreference) findPreference(STATUS_BAR_BATTERY_STYLE);
        mStatusBarBatteryShowPercent =
                (ListPreference) findPreference(STATUS_BAR_SHOW_BATTERY_PERCENT);
        mQuickPulldown = (ListPreference) findPreference(STATUS_BAR_QUICK_QS_PULLDOWN);

        int clockStyle = CMSettings.System.getInt(resolver,
                CMSettings.System.STATUS_BAR_CLOCK, 1);
        mStatusBarClock.setValue(String.valueOf(clockStyle));
        mStatusBarClock.setSummary(mStatusBarClock.getEntry());
        mStatusBarClock.setOnPreferenceChangeListener(this);

        if (DateFormat.is24HourFormat(getActivity())) {
            mStatusBarAmPm.setEnabled(false);
            mStatusBarAmPm.setSummary(R.string.status_bar_am_pm_info);
        } else {
            int statusBarAmPm = CMSettings.System.getInt(resolver,
                    CMSettings.System.STATUS_BAR_AM_PM, 2);
            mStatusBarAmPm.setValue(String.valueOf(statusBarAmPm));
            mStatusBarAmPm.setSummary(mStatusBarAmPm.getEntry());
            mStatusBarAmPm.setOnPreferenceChangeListener(this);
        }

        int batteryStyle = CMSettings.System.getInt(resolver,
                CMSettings.System.STATUS_BAR_BATTERY_STYLE, 0);
        mStatusBarBattery.setValue(String.valueOf(batteryStyle));
        mStatusBarBattery.setSummary(mStatusBarBattery.getEntry());
        mStatusBarBattery.setOnPreferenceChangeListener(this);

        int batteryShowPercent = CMSettings.System.getInt(resolver,
                CMSettings.System.STATUS_BAR_SHOW_BATTERY_PERCENT, 0);
        mStatusBarBatteryShowPercent.setValue(String.valueOf(batteryShowPercent));
        mStatusBarBatteryShowPercent.setSummary(mStatusBarBatteryShowPercent.getEntry());
        enableStatusBarBatteryDependents(batteryStyle);
        mStatusBarBatteryShowPercent.setOnPreferenceChangeListener(this);

        int quickPulldown = CMSettings.System.getInt(resolver,
                CMSettings.System.STATUS_BAR_QUICK_QS_PULLDOWN, 1);
        mQuickPulldown.setValue(String.valueOf(quickPulldown));
        updatePulldownSummary(quickPulldown);
        mQuickPulldown.setOnPreferenceChangeListener(this);
    }

    @Override
    protected int getMetricsCategory() {
        // todo add a constant in MetricsLogger.java
        return MetricsLogger.MAIN_SETTINGS;
    }

    @Override
    public void onResume() {
        super.onResume();
        // Adjust clock position for RTL if necessary
        Configuration config = getResources().getConfiguration();
        if (config.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL) {
                mStatusBarClock.setEntries(getActivity().getResources().getStringArray(
                        R.array.status_bar_clock_style_entries_rtl));
                mStatusBarClock.setSummary(mStatusBarClock.getEntry());
        }
    }

    @Override
    public boolean onPreferenceChange(Preference preference, Object newValue) {
        ContentResolver resolver = getActivity().getContentResolver();
        if (preference == mStatusBarClock) {
            int clockStyle = Integer.parseInt((String) newValue);
            int index = mStatusBarClock.findIndexOfValue((String) newValue);
            CMSettings.System.putInt(
                    resolver, CMSettings.System.STATUS_BAR_CLOCK, clockStyle);
            mStatusBarClock.setSummary(mStatusBarClock.getEntries()[index]);
            return true;
        } else if (preference == mStatusBarAmPm) {
            int statusBarAmPm = Integer.valueOf((String) newValue);
            int index = mStatusBarAmPm.findIndexOfValue((String) newValue);
            CMSettings.System.putInt(
                    resolver, CMSettings.System.STATUS_BAR_AM_PM, statusBarAmPm);
            mStatusBarAmPm.setSummary(mStatusBarAmPm.getEntries()[index]);
            return true;
        } else if (preference == mStatusBarBattery) {
            int batteryStyle = Integer.valueOf((String) newValue);
            int index = mStatusBarBattery.findIndexOfValue((String) newValue);
            CMSettings.System.putInt(
                    resolver, CMSettings.System.STATUS_BAR_BATTERY_STYLE, batteryStyle);
            mStatusBarBattery.setSummary(mStatusBarBattery.getEntries()[index]);
            enableStatusBarBatteryDependents(batteryStyle);
            return true;
        } else if (preference == mStatusBarBatteryShowPercent) {
            int batteryShowPercent = Integer.valueOf((String) newValue);
            int index = mStatusBarBatteryShowPercent.findIndexOfValue((String) newValue);
            CMSettings.System.putInt(
                    resolver, CMSettings.System.STATUS_BAR_SHOW_BATTERY_PERCENT, batteryShowPercent);
            mStatusBarBatteryShowPercent.setSummary(
                    mStatusBarBatteryShowPercent.getEntries()[index]);
            return true;
        } else if (preference == mQuickPulldown) {
            int quickPulldown = Integer.valueOf((String) newValue);
            CMSettings.System.putInt(
                    resolver, CMSettings.System.STATUS_BAR_QUICK_QS_PULLDOWN, quickPulldown);
            updatePulldownSummary(quickPulldown);
            return true;
        }
        return false;
    }

    private void enableStatusBarBatteryDependents(int batteryIconStyle) {
        if (batteryIconStyle == STATUS_BAR_BATTERY_STYLE_HIDDEN ||
                batteryIconStyle == STATUS_BAR_BATTERY_STYLE_TEXT) {
            mStatusBarBatteryShowPercent.setEnabled(false);
        } else {
            mStatusBarBatteryShowPercent.setEnabled(true);
        }
    }

    private void updatePulldownSummary(int value) {
        Resources res = getResources();

        if (value == 0) {
            // quick pulldown deactivated
            mQuickPulldown.setSummary(res.getString(R.string.status_bar_quick_qs_pulldown_off));
        } else {
            String direction = res.getString(value == 2
                    ? R.string.status_bar_quick_qs_pulldown_summary_left
                    : R.string.status_bar_quick_qs_pulldown_summary_right);
            mQuickPulldown.setSummary(res.getString(R.string.status_bar_quick_qs_pulldown_summary, direction));
        }
    }

    public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
            new BaseSearchIndexProvider() {
                @Override
                public List<SearchIndexableResource> getXmlResourcesToIndex(Context context,
                                                                            boolean enabled) {
                    ArrayList<SearchIndexableResource> result =
                            new ArrayList<SearchIndexableResource>();

                    SearchIndexableResource sir = new SearchIndexableResource(context);
                    sir.xmlResId = R.xml.status_bar_settings;
                    result.add(sir);

                    return result;
                }

                @Override
                public List<String> getNonIndexableKeys(Context context) {
                    ArrayList<String> result = new ArrayList<String>();
                    return result;
                }
            };
}