/*
 * Copyright (C) 2023 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.settings.connecteddevice.audiosharing;

import android.app.Dialog;
import android.app.settings.SettingsEnums;
import android.os.Bundle;
import android.util.Log;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AlertDialog;
import androidx.fragment.app.Fragment;
import androidx.fragment.app.FragmentManager;

import com.android.settings.R;
import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
import com.android.settingslib.bluetooth.CachedBluetoothDevice;

import java.util.List;
import java.util.Locale;

public class AudioSharingDisconnectDialogFragment extends InstrumentedDialogFragment {
    private static final String TAG = "AudioSharingDisconnectDialog";

    private static final String BUNDLE_KEY_DEVICE_TO_DISCONNECT_ITEMS =
            "bundle_key_device_to_disconnect_items";
    private static final String BUNDLE_KEY_NEW_DEVICE_NAME = "bundle_key_new_device_name";

    // The host creates an instance of this dialog fragment must implement this interface to receive
    // event callbacks.
    public interface DialogEventListener {
        /**
         * Called when users click the device item to disconnect from the audio sharing in the
         * dialog.
         *
         * @param item The device item clicked.
         */
        void onItemClick(AudioSharingDeviceItem item);
    }

    @Nullable private static DialogEventListener sListener;
    @Nullable private static CachedBluetoothDevice sNewDevice;

    @Override
    public int getMetricsCategory() {
        return SettingsEnums.DIALOG_AUDIO_SHARING_SWITCH_DEVICE;
    }

    /**
     * Display the {@link AudioSharingDisconnectDialogFragment} dialog.
     *
     * <p>If the dialog is showing for the same group, update the dialog event listener.
     *
     * @param host The Fragment this dialog will be hosted.
     * @param deviceItems The existing connected device items in audio sharing session.
     * @param newDevice The latest connected device triggered this dialog.
     * @param listener The callback to handle the user action on this dialog.
     */
    public static void show(
            @NonNull Fragment host,
            @NonNull List<AudioSharingDeviceItem> deviceItems,
            @NonNull CachedBluetoothDevice newDevice,
            @NonNull DialogEventListener listener) {
        if (!AudioSharingUtils.isFeatureEnabled()) return;
        FragmentManager manager = host.getChildFragmentManager();
        AlertDialog dialog = AudioSharingDialogHelper.getDialogIfShowing(manager, TAG);
        if (dialog != null) {
            int newGroupId = AudioSharingUtils.getGroupId(newDevice);
            if (sNewDevice != null && newGroupId == AudioSharingUtils.getGroupId(sNewDevice)) {
                Log.d(
                        TAG,
                        String.format(
                                Locale.US,
                                "Dialog is showing for the same device group %d, "
                                        + "update the content.",
                                newGroupId));
                sListener = listener;
                sNewDevice = newDevice;
                return;
            } else {
                Log.d(
                        TAG,
                        String.format(
                                Locale.US,
                                "Dialog is showing for new device group %d, "
                                        + "dismiss current dialog.",
                                newGroupId));
                dialog.dismiss();
            }
        }
        sListener = listener;
        sNewDevice = newDevice;
        Log.d(TAG, "Show up the dialog.");
        final Bundle bundle = new Bundle();
        bundle.putParcelableList(BUNDLE_KEY_DEVICE_TO_DISCONNECT_ITEMS, deviceItems);
        bundle.putString(BUNDLE_KEY_NEW_DEVICE_NAME, newDevice.getName());
        AudioSharingDisconnectDialogFragment dialogFrag =
                new AudioSharingDisconnectDialogFragment();
        dialogFrag.setArguments(bundle);
        dialogFrag.show(manager, TAG);
    }

    /** Return the tag of {@link AudioSharingDisconnectDialogFragment} dialog. */
    public static @NonNull String tag() {
        return TAG;
    }

    /** Get the latest connected device which triggers the dialog. */
    public @Nullable CachedBluetoothDevice getDevice() {
        return sNewDevice;
    }

    @Override
    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
        Bundle arguments = requireArguments();
        List<AudioSharingDeviceItem> deviceItems =
                arguments.getParcelable(BUNDLE_KEY_DEVICE_TO_DISCONNECT_ITEMS, List.class);
        return AudioSharingDialogFactory.newBuilder(getActivity())
                .setTitle(R.string.audio_sharing_disconnect_dialog_title)
                .setTitleIcon(com.android.settingslib.R.drawable.ic_bt_le_audio_sharing)
                .setIsCustomBodyEnabled(true)
                .setCustomMessage(R.string.audio_sharing_dialog_disconnect_content)
                .setCustomDeviceActions(
                        new AudioSharingDeviceAdapter(
                                getContext(),
                                deviceItems,
                                (AudioSharingDeviceItem item) -> {
                                    if (sListener != null) {
                                        sListener.onItemClick(item);
                                    }
                                    dismiss();
                                },
                                AudioSharingDeviceAdapter.ActionType.REMOVE))
                .setCustomNegativeButton(com.android.settings.R.string.cancel, v -> dismiss())
                .build();
    }
}