/*
 * Copyright (C) 2010 The Android Open Source Project
 * This code has been modified. Portions copyright (C) 2012 ParanoidAndroid 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.systemui.statusbar.tablet;

import android.app.StatusBarManager;
import android.database.ContentObserver;
import android.content.pm.PackageManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.os.Handler;
import android.provider.Settings;
import android.util.AttributeSet;
import android.util.Slog;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.CompoundButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Switch;
import android.view.LayoutInflater;

import com.android.systemui.R;
import com.android.systemui.statusbar.policy.AirplaneModeController;
import com.android.systemui.statusbar.policy.AutoRotateController;
import com.android.systemui.statusbar.policy.BrightnessController;
import com.android.systemui.statusbar.policy.BluetoothController;
import com.android.systemui.statusbar.policy.DoNotDisturbController;
import com.android.systemui.statusbar.policy.ToggleSlider;
import com.android.systemui.statusbar.policy.VolumeController;
import com.android.systemui.statusbar.policy.WifiController;
import com.android.systemui.statusbar.policy.LocationController;
import com.android.systemui.statusbar.policy.FlashlightController;
import com.android.systemui.statusbar.policy.MobileDataController;
import com.android.systemui.statusbar.policy.NetworkModeController;
import com.android.systemui.statusbar.policy.SoundController;

public class SettingsView extends LinearLayout implements View.OnClickListener {
    static final String TAG = "SettingsView";

    private static final String NO_TOGGLES = "no_toggles";
    private static final int AIRPLANE_ID = 0;
    private static final int ROTATE_ID = 1;
    private static final int BLUETOOTH_ID = 2;
    private static final int GPS_ID = 3;
    private static final int WIFI_ID = 4;
    private static final int FLASHLIGHT_ID = 5;
    private static final int MOBILE_DATA_ID = 6;
    private static final int NETWORK_MODE_ID = 7;
    private static final int SOUND_ID = 8;

    private static final String[] KEY_TOGGLES = new String[]{"pref_airplane_toggle", "pref_rotate_toggle", "pref_bluetooth_toggle", "pref_gps_toggle", "pref_wifi_toggle", "pref_flashlight_toggle", "pref_mobile_data_toggle", "pref_network_mode_toggle", "pref_sound_toggle"};

    private static final String BUTTON_DELIMITER = "\\|";
    private static final String BUTTONS_DEFAULT = KEY_TOGGLES[0]
        + BUTTON_DELIMITER + KEY_TOGGLES[4]
        + BUTTON_DELIMITER + KEY_TOGGLES[2]
        + BUTTON_DELIMITER + KEY_TOGGLES[1];

    AirplaneModeController mAirplane;
    AutoRotateController mRotate;
    BluetoothController mBluetooth;
    BrightnessController mBrightness;
    DoNotDisturbController mDoNotDisturb;
    FlashlightController mFlashLight;
    LocationController mGps;
    MobileDataController mMobileData;
    NetworkModeController mNetworkMode;
    SoundController mSound;
    WifiController mWifi;

    private Context mContext;
    private Handler mHandler;
    private String mToggleContainer;
    private String[] mToggles;

    private final class SettingsObserver extends ContentObserver {
        SettingsObserver(Handler handler) {
            super(handler);
        }

        void observe() {
            ContentResolver resolver = getContext().getContentResolver();
            resolver.registerContentObserver(Settings.System.getUriFor(
                    Settings.System.WIDGET_BUTTONS_TABLET), false, this);
            updateToggleContainer();
        }

        @Override
        public void onChange(boolean selfChange) {
            updateToggleContainer();
        }

        void updateToggleContainer(){
            mToggleContainer = Settings.System.getString(getContext().getContentResolver(), Settings.System.WIDGET_BUTTONS_TABLET);
        }
    }

    private class ButtonTag {
        public int toggleId;
        public ButtonTag(int id) {
            toggleId = id;
        }
    }

    public SettingsView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public SettingsView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        mContext = getContext();
        mHandler = new Handler();
        SettingsObserver settingsObserver = new SettingsObserver(mHandler);
        settingsObserver.observe();
    }

    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();

        mBrightness = new BrightnessController(mContext, (ToggleSlider)findViewById(R.id.brightness));
        mDoNotDisturb = new DoNotDisturbController(mContext, (CompoundButton)findViewById(R.id.do_not_disturb_checkbox));

        if(mToggleContainer == null)
           mToggleContainer = BUTTONS_DEFAULT;
        if(!mToggleContainer.equals(NO_TOGGLES)){
               updateToggles();
        }
        findViewById(R.id.settings).setOnClickListener(this);
    }

    private void clearToggles() {
        for (int i = getChildCount() - 1; i >= 0; i--) {
            View v = getChildAt(i);
            if (v.getTag() instanceof ButtonTag)
                removeView(v);
        }
    }

    private void updateToggles(){
        clearToggleControllers();
        clearToggles();
        mToggles = mToggleContainer.split("\\|");
        for(int i=mToggles.length - 1; i>=0; i--){
                String mToggleName = mToggles[i].replace("\\", "");

                // Do not show Bluetooth Settings if Bluetooth service is not available.
                if(mToggleName.equals(KEY_TOGGLES[2]) && !mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH))
                        continue;

                // Do not show WiFi Settings if WiFi service is not available.
                if(mToggleName.equals(KEY_TOGGLES[4]) && !mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_WIFI))
                        continue;

                int[] resources = getResourcesById(mToggleName);
                addToggle(resources, mToggleName);
        }
    }

    private void addToggle(final int[] res, String name) {
        LinearLayout toggle = (LinearLayout) LayoutInflater.from(mContext).inflate(R.layout.status_bar_settings_button, this, false);
        addView(toggle,0);

        ImageView icon = (ImageView)toggle.getChildAt(0);
        icon.setImageResource(res[0]);
        TextView label = (TextView)toggle.getChildAt(1);
        label.setText(res[1]);
        Switch checkbox = (Switch)toggle.getChildAt(2);

        toggle.setTag(new ButtonTag(res[2]));
        toggle.setOnClickListener(this);

        setToggleController(name, (CompoundButton)checkbox);
    }


    @Override
    protected void onDetachedFromWindow() {
        super.onDetachedFromWindow();
        if(mAirplane != null)
             mAirplane.release();
        if(mGps != null)
             mGps.release();
        if(mSound != null)
             mSound.release();
        mDoNotDisturb.release();
    }


    private void clearToggleControllers() {
        mAirplane = null;
        mRotate = null;
        mBluetooth = null;
        mFlashLight = null;
        mGps = null;
        mMobileData = null;
        mNetworkMode = null;
        mSound = null;
        mWifi = null;
    }

    private void setToggleController(String id, CompoundButton checkbox) {
        if(id.equals(KEY_TOGGLES[0]))
           mAirplane = new AirplaneModeController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[1]))
           mRotate = new AutoRotateController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[2]))
           mBluetooth = new BluetoothController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[3]))
           mGps = new LocationController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[4]))
           mWifi = new WifiController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[5]))
           mFlashLight = new FlashlightController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[6]))
           mMobileData = new MobileDataController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[7]))
           mNetworkMode = new NetworkModeController(mContext, checkbox);
        else if(id.equals(KEY_TOGGLES[8]))
           mSound = new SoundController(mContext, checkbox);
    }

    private int[] getResourcesById(String id){
        if(id.equals(KEY_TOGGLES[0]))
           return new int[]{R.drawable.ic_sysbar_airplane_on, R.string.status_bar_settings_airplane, AIRPLANE_ID};
        else if(id.equals(KEY_TOGGLES[1]))
           return new int[]{R.drawable.ic_sysbar_rotate_on, R.string.status_bar_settings_auto_rotation, ROTATE_ID};
        else if(id.equals(KEY_TOGGLES[2]))
           return new int[]{R.drawable.stat_sys_data_bluetooth, R.string.status_bar_settings_bluetooth_button, BLUETOOTH_ID};
        else if(id.equals(KEY_TOGGLES[3]))
           return new int[]{R.drawable.stat_gps_on, R.string.status_bar_settings_location, GPS_ID};
        else if(id.equals(KEY_TOGGLES[4]))
           return new int[]{R.drawable.ic_sysbar_wifi_on, R.string.status_bar_settings_wifi_button, WIFI_ID};
        else if(id.equals(KEY_TOGGLES[5]))
           return new int[]{R.drawable.stat_flashlight_on, R.string.status_bar_settings_flashlight, FLASHLIGHT_ID};
        else if(id.equals(KEY_TOGGLES[6]))
           return new int[]{R.drawable.stat_data_on, R.string.status_bar_settings_mobile_data, MOBILE_DATA_ID};
        else if(id.equals(KEY_TOGGLES[7]))
           return new int[]{R.drawable.stat_2g3g_on, R.string.status_bar_settings_network_mode, NETWORK_MODE_ID};
        else if(id.equals(KEY_TOGGLES[8]))
           return new int[]{R.drawable.stat_ring_on, R.string.status_bar_settings_sound_mode, SOUND_ID};
        else
           return new int[]{0, 0};
    }

    private StatusBarManager getStatusBarManager() {
        return (StatusBarManager)getContext().getSystemService(Context.STATUS_BAR_SERVICE);
    }

    public void onClick(View v) {
        if (v.getId() == R.id.settings) {
            onClickSettings();
        } else {
            Object tag = v.getTag();
            if (tag instanceof ButtonTag)
                onClickToggle(((ButtonTag) tag).toggleId);
        }
    }

    /*
     * OnClickListener for custom toggles
     */
    private void onClickToggle(int id) {
        switch(id){
                case WIFI_ID:
                getContext().startActivity(new Intent(Settings.ACTION_WIFI_SETTINGS)
                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
                break;
                case BLUETOOTH_ID:
                getContext().startActivity(new Intent(Settings.ACTION_BLUETOOTH_SETTINGS)
                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
                break;
                case GPS_ID:
                getContext().startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS)
                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
                break;
                case FLASHLIGHT_ID:
                Intent intent = new Intent(Intent.ACTION_MAIN);
                intent.setClassName("net.cactii.flash2", "net.cactii.flash2.MainActivity");
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                getContext().startActivity(intent);
                break;
                case MOBILE_DATA_ID:
                getContext().startActivity(new Intent(Settings.ACTION_DATA_ROAMING_SETTINGS)
                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
                break;
                case NETWORK_MODE_ID:
                getContext().startActivity(new Intent(Settings.ACTION_DATA_ROAMING_SETTINGS)
                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
                break;
                case SOUND_ID:
                getContext().startActivity(new Intent(Settings.ACTION_SOUND_SETTINGS)
                        .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
                break;
        }
        getStatusBarManager().collapse();
    }

    // Settings
    // ----------------------------
    private void onClickSettings() {
        getContext().startActivity(new Intent(Settings.ACTION_SETTINGS)
                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
        getStatusBarManager().collapse();
    }
}