/*
 * Copyright (C) 2022 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 android.bluetooth.cts;

import static android.Manifest.permission.BLUETOOTH_CONNECT;
import static android.bluetooth.BluetoothStatusCodes.FEATURE_SUPPORTED;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothLeAudioContentMetadata;
import android.bluetooth.BluetoothLeBroadcastReceiveState;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.os.Build;
import android.os.Parcel;

import androidx.test.ext.junit.runners.AndroidJUnit4;
import androidx.test.filters.SmallTest;
import androidx.test.platform.app.InstrumentationRegistry;

import com.android.compatibility.common.util.ApiLevelUtil;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import java.util.Arrays;
import java.util.List;

@RunWith(AndroidJUnit4.class)
@SmallTest
public class BluetoothLeBroadcastReceiveStateTest {
    private static final int TEST_SOURCE_ID = 42;
    private static final int TEST_SOURCE_ADDRESS_TYPE = BluetoothDevice.ADDRESS_TYPE_RANDOM;
    private static final String TEST_MAC_ADDRESS = "00:11:22:33:44:55";
    private static final int TEST_ADVERTISER_SID = 1234;
    private static final int TEST_BROADCAST_ID = 45;
    private static final int TEST_PA_SYNC_STATE =
            BluetoothLeBroadcastReceiveState.PA_SYNC_STATE_SYNCHRONIZED;
    private static final int TEST_BIG_ENCRYPTION_STATE =
            BluetoothLeBroadcastReceiveState.BIG_ENCRYPTION_STATE_NOT_ENCRYPTED;
    private static final int TEST_NUM_SUBGROUPS = 1;
    private static final Long[] TEST_BIS_SYNC_STATE = {1L};
    private static final BluetoothLeAudioContentMetadata[] TEST_SUBGROUP_METADATA = {null};

    private Context mContext;
    private boolean mHasBluetooth;
    private BluetoothAdapter mAdapter;
    private boolean mIsBroadcastSourceSupported;
    private boolean mIsBroadcastAssistantSupported;

    @Before
    public void setUp() {
        mContext = InstrumentationRegistry.getInstrumentation().getContext();
        if (!ApiLevelUtil.isAtLeast(Build.VERSION_CODES.TIRAMISU)) {
            return;
        }
        mHasBluetooth = TestUtils.hasBluetooth();
        if (!mHasBluetooth) {
            return;
        }
        TestUtils.adoptPermissionAsShellUid(BLUETOOTH_CONNECT);
        mAdapter = TestUtils.getBluetoothAdapterOrDie();
        assertTrue(BTAdapterUtils.enableAdapter(mAdapter, mContext));

        mIsBroadcastAssistantSupported =
                mAdapter.isLeAudioBroadcastAssistantSupported() == FEATURE_SUPPORTED;
        if (mIsBroadcastAssistantSupported) {
            boolean isBroadcastAssistantEnabledInConfig =
                    TestUtils.isProfileEnabled(BluetoothProfile.LE_AUDIO_BROADCAST_ASSISTANT);
            assertTrue("Config must be true when profile is supported",
                    isBroadcastAssistantEnabledInConfig);
        }

        mIsBroadcastSourceSupported =
                mAdapter.isLeAudioBroadcastSourceSupported() == FEATURE_SUPPORTED;
        if (mIsBroadcastSourceSupported) {
            boolean isBroadcastSourceEnabledInConfig =
                    TestUtils.isProfileEnabled(BluetoothProfile.LE_AUDIO_BROADCAST);
            assertTrue("Config must be true when profile is supported",
                    isBroadcastSourceEnabledInConfig);
        }
    }

    @After
    public void tearDown() {
        if (mHasBluetooth) {
            if (mAdapter != null) {
                assertTrue(BTAdapterUtils.disableAdapter(mAdapter, mContext));
            }
            mAdapter = null;
            TestUtils.dropPermissionAsShellUid();
        }
    }

    @Test
    public void testCreateBroadcastReceiveState() {
        if (shouldSkipTest()) {
            return;
        }
        BluetoothDevice testDevice =
                mAdapter.getRemoteLeDevice(TEST_MAC_ADDRESS, TEST_SOURCE_ADDRESS_TYPE);
        BluetoothLeBroadcastReceiveState state = createBroadcastReceiveStateForTest(
                TEST_SOURCE_ID,
                TEST_SOURCE_ADDRESS_TYPE,
                testDevice,
                TEST_ADVERTISER_SID,
                TEST_BROADCAST_ID,
                TEST_PA_SYNC_STATE,
                TEST_BIG_ENCRYPTION_STATE,
                null /* badCode */,
                TEST_NUM_SUBGROUPS,
                Arrays.asList(TEST_BIS_SYNC_STATE),
                Arrays.asList(TEST_SUBGROUP_METADATA));
        assertEquals(TEST_SOURCE_ID, state.getSourceId());
        assertEquals(TEST_SOURCE_ADDRESS_TYPE, state.getSourceAddressType());
        assertEquals(testDevice, state.getSourceDevice());
        assertEquals(TEST_ADVERTISER_SID, state.getSourceAdvertisingSid());
        assertEquals(TEST_BROADCAST_ID, state.getBroadcastId());
        assertEquals(TEST_PA_SYNC_STATE, state.getPaSyncState());
        assertEquals(TEST_BIG_ENCRYPTION_STATE, state.getBigEncryptionState());
        assertNull(state.getBadCode());
        assertEquals(TEST_NUM_SUBGROUPS, state.getNumSubgroups());
        assertArrayEquals(TEST_BIS_SYNC_STATE, state.getBisSyncState().toArray(new Long[0]));
        assertArrayEquals(TEST_SUBGROUP_METADATA,
                state.getSubgroupMetadata().toArray(new BluetoothLeAudioContentMetadata[0]));
    }

    private boolean shouldSkipTest() {
        return !mHasBluetooth || (!mIsBroadcastSourceSupported && !mIsBroadcastAssistantSupported);
    }

    static BluetoothLeBroadcastReceiveState createBroadcastReceiveStateForTest(
            int sourceId, int sourceAddressType,
            BluetoothDevice sourceDevice, int sourceAdvertisingSid, int broadcastId,
            int paSyncState, int bigEncryptionState, byte[] badCode, int numSubgroups,
            List<Long> bisSyncState,
            List<BluetoothLeAudioContentMetadata> subgroupMetadata) {
        Parcel out = Parcel.obtain();
        out.writeInt(sourceId);
        out.writeInt(sourceAddressType);
        out.writeTypedObject(sourceDevice, 0);
        out.writeInt(sourceAdvertisingSid);
        out.writeInt(broadcastId);
        out.writeInt(paSyncState);
        out.writeInt(bigEncryptionState);

        if (badCode != null) {
            out.writeInt(badCode.length);
            out.writeByteArray(badCode);
        } else {
            // -1 indicates that there is no "bad broadcast code"
            out.writeInt(-1);
        }
        out.writeInt(numSubgroups);
        out.writeList(bisSyncState);
        out.writeTypedList(subgroupMetadata);
        out.setDataPosition(0); // reset position of parcel before passing to constructor
        return BluetoothLeBroadcastReceiveState.CREATOR.createFromParcel(out);
    }
}