/*
 * Copyright (C) 2015 The Android Open Source 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.tv.ui.sidepanel.parentalcontrols;

import android.view.View;
import android.widget.TextView;
import com.android.tv.MainActivity;
import com.android.tv.R;
import com.android.tv.data.api.Channel;
import com.android.tv.dialog.PinDialogFragment;
import com.android.tv.ui.sidepanel.ActionItem;
import com.android.tv.ui.sidepanel.Item;
import com.android.tv.ui.sidepanel.SideFragment;
import com.android.tv.ui.sidepanel.SubMenuItem;
import com.android.tv.ui.sidepanel.SwitchItem;
import java.util.ArrayList;
import java.util.List;

public class ParentalControlsFragment extends SideFragment {
    private static final String TRACKER_LABEL = "Parental controls";
    private List<ActionItem> mActionItems;

    private final SideFragmentListener mSideFragmentListener =
            new SideFragmentListener() {
                @Override
                public void onSideFragmentViewDestroyed() {
                    notifyDataSetChanged();
                }
            };

    @Override
    protected String getTitle() {
        return getString(R.string.menu_parental_controls);
    }

    @Override
    public String getTrackerLabel() {
        return TRACKER_LABEL;
    }

    @Override
    protected List<Item> getItemList() {
        List<Item> items = new ArrayList<>();
        items.add(
                new SwitchItem(
                        getString(R.string.option_toggle_parental_controls_on),
                        getString(R.string.option_toggle_parental_controls_off)) {
                    @Override
                    protected void onUpdate() {
                        super.onUpdate();
                        setChecked(
                                getMainActivity()
                                        .getParentalControlSettings()
                                        .isParentalControlsEnabled());
                    }

                    @Override
                    protected void onSelected() {
                        super.onSelected();
                        boolean checked = isChecked();
                        getMainActivity()
                                .getParentalControlSettings()
                                .setParentalControlsEnabled(checked);
                        enableActionItems(checked);
                    }
                });

        mActionItems = new ArrayList<>();
        mActionItems.add(
                new SubMenuItem(
                        getString(R.string.option_channels_locked),
                        "",
                        getMainActivity().getOverlayManager().getSideFragmentManager()) {
                    TextView mDescriptionView;

                    @Override
                    protected SideFragment getFragment() {
                        SideFragment fragment = new ChannelsBlockedFragment();
                        fragment.setListener(mSideFragmentListener);
                        return fragment;
                    }

                    @Override
                    protected void onBind(View view) {
                        super.onBind(view);
                        mDescriptionView = (TextView) view.findViewById(R.id.description);
                    }

                    @Override
                    protected void onUpdate() {
                        super.onUpdate();
                        int lockedAndBrowsableChannelCount = 0;
                        for (Channel channel : getChannelDataManager().getChannelList()) {
                            if (channel.isLocked() && channel.isBrowsable()) {
                                ++lockedAndBrowsableChannelCount;
                            }
                        }
                        if (lockedAndBrowsableChannelCount > 0) {
                            mDescriptionView.setText(
                                    Integer.toString(lockedAndBrowsableChannelCount));
                        } else {
                            mDescriptionView.setText(
                                    getMainActivity().getString(R.string.option_no_locked_channel));
                        }
                    }

                    @Override
                    protected void onUnbind() {
                        super.onUnbind();
                        mDescriptionView = null;
                    }
                });
        mActionItems.add(
                new SubMenuItem(
                        getString(R.string.option_program_restrictions),
                        ProgramRestrictionsFragment.getDescription(getMainActivity()),
                        getMainActivity().getOverlayManager().getSideFragmentManager()) {
                    @Override
                    protected SideFragment getFragment() {
                        SideFragment fragment = new ProgramRestrictionsFragment();
                        fragment.setListener(mSideFragmentListener);
                        return fragment;
                    }
                });
        mActionItems.add(
                new ActionItem(getString(R.string.option_change_pin)) {
                    @Override
                    protected void onSelected() {
                        final MainActivity tvActivity = getMainActivity();
                        tvActivity.getOverlayManager().getSideFragmentManager().hideSidePanel(true);
                        PinDialogFragment fragment =
                                PinDialogFragment.create(PinDialogFragment.PIN_DIALOG_TYPE_NEW_PIN);
                        tvActivity
                                .getOverlayManager()
                                .showDialogFragment(PinDialogFragment.DIALOG_TAG, fragment, true);
                    }
                });
        items.addAll(mActionItems);
        enableActionItems(
                getMainActivity().getParentalControlSettings().isParentalControlsEnabled());
        return items;
    }

    private void enableActionItems(boolean enabled) {
        for (ActionItem actionItem : mActionItems) {
            actionItem.setEnabled(enabled);
        }
    }
}