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package com.android.settings.bluetooth;

import com.android.settings.connecteddevice.ConnectedDeviceDashboardFragment;
import com.android.settings.connecteddevice.DevicePreferenceCallback;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settingslib.bluetooth.CachedBluetoothDevice;

import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.media.AudioManager;
import android.util.Log;

/**
 * Controller to maintain available Group devices
 */
public class GroupBluetoothDevicesAvailableMediaDeviceUpdater extends
            GroupBluetoothGroupDeviceUpdater {

    private static final String TAG = "GroupBluetoothDevicesAvailableMediaDeviceUpdater";
    private static final String PREF_KEY = "group_options_active_devices";
    private int mGroupId;
    private final AudioManager mAudioManager;
    private GroupUtils mGroupUtils;

    public GroupBluetoothDevicesAvailableMediaDeviceUpdater(Context context, DashboardFragment
            fragment, DevicePreferenceCallback devicePreferenceCallback, int groupId) {
        super(context, fragment, devicePreferenceCallback);
        mGroupId = groupId;
        mAudioManager = context.getSystemService(AudioManager.class);
        mGroupUtils = new GroupUtils(context);
    }

    @Override
    public void onAudioModeChanged() {
        forceUpdate();
    }

    @Override
    public boolean isFilterMatched(CachedBluetoothDevice cachedDevice) {
        final int audioMode = mAudioManager.getMode();
        final int currentAudioProfile;
        if (audioMode == AudioManager.MODE_RINGTONE || audioMode == AudioManager.MODE_IN_CALL
            || audioMode == AudioManager.MODE_IN_COMMUNICATION) {
            // in phone call
            currentAudioProfile = BluetoothProfile.HEADSET;
        } else {
            // without phone call
            currentAudioProfile = BluetoothProfile.A2DP;
        }
        boolean isFilterMatched = false;
        if (isDeviceConnected(cachedDevice)) {
            if (DBG) {
                Log.d(TAG, "isFilterMatched() current audio profile : " + currentAudioProfile);
            }
            // If device is Hearing Aid, it is compatible with HFP and A2DP.
            // It would not show in Connected Devices group.
            if (cachedDevice.isConnectedHearingAidDevice()) {
                return false;
            }
            // According to the current audio profile type,
            // this page will show the bluetooth device that doesn't have corresponding
            // profile.
            // For example:
            // If current audio profile is a2dp,
            // show the bluetooth device that doesn't have a2dp profile.
            // If current audio profile is headset,
            // show the bluetooth device that doesn't have headset profile.
            switch (currentAudioProfile) {
                case BluetoothProfile.A2DP:
                isFilterMatched = cachedDevice.isConnectedA2dpDevice();
                break;
                case BluetoothProfile.HEADSET:
                isFilterMatched = cachedDevice.isConnectedHfpDevice();
                break;
            }
            if (DBG) {
                Log.d(TAG, "isFilterMatched " + isFilterMatched
                        + " cachedDevice : " + cachedDevice );
            }
        }
        return isFilterMatched &&  isGroupDevice(cachedDevice)
                && mGroupId == mGroupUtils.getGroupId(cachedDevice);
    }

    @Override
    protected String getPreferenceKey() {
        return PREF_KEY;
    }
}