/*
 * Copyright (C) 2020 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.server.hdmi;

import static com.android.server.hdmi.Constants.ADDR_PLAYBACK_1;
import static com.android.server.hdmi.Constants.ADDR_TV;
import static com.android.server.hdmi.HdmiControlService.INITIATED_BY_ENABLE_CEC;

import static com.google.common.truth.Truth.assertThat;

import android.content.Context;
import android.hardware.hdmi.HdmiControlManager;
import android.hardware.tv.cec.V1_0.SendMessageResult;
import android.os.Handler;
import android.os.IPowerManager;
import android.os.IThermalService;
import android.os.Looper;
import android.os.PowerManager;
import android.os.test.TestLooper;

import androidx.test.InstrumentationRegistry;
import androidx.test.filters.SmallTest;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import java.util.ArrayList;

@SmallTest
@RunWith(JUnit4.class)
/** Tests for {@link HdmiCecLocalDeviceTv} class. */
public class HdmiCecLocalDeviceTvTest {

    private HdmiControlService mHdmiControlService;
    private HdmiCecController mHdmiCecController;
    private HdmiCecLocalDeviceTv mHdmiCecLocalDeviceTv;
    private FakeNativeWrapper mNativeWrapper;
    private Looper mMyLooper;
    private TestLooper mTestLooper = new TestLooper();
    private ArrayList<HdmiCecLocalDevice> mLocalDevices = new ArrayList<>();
    private int mTvPhysicalAddress;

    @Mock
    private IPowerManager mIPowerManagerMock;
    @Mock
    private IThermalService mIThermalServiceMock;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);

        Context context = InstrumentationRegistry.getTargetContext();
        mMyLooper = mTestLooper.getLooper();
        PowerManager powerManager = new PowerManager(context, mIPowerManagerMock,
                mIThermalServiceMock, new Handler(mMyLooper));
        mHdmiControlService =
                new HdmiControlService(InstrumentationRegistry.getTargetContext()) {
                    @Override
                    boolean isControlEnabled() {
                        return true;
                    }

                    @Override
                    boolean isTvDevice() {
                        return true;
                    }

                    @Override
                    void writeStringSystemProperty(String key, String value) {
                        // do nothing
                    }

                    @Override
                    PowerManager getPowerManager() {
                        return powerManager;
                    }
                };

        mHdmiCecLocalDeviceTv = new HdmiCecLocalDeviceTv(mHdmiControlService);
        mHdmiCecLocalDeviceTv.init();
        mHdmiControlService.setIoLooper(mMyLooper);
        mNativeWrapper = new FakeNativeWrapper();
        mHdmiCecController =
                HdmiCecController.createWithNativeWrapper(mHdmiControlService, mNativeWrapper);
        mHdmiControlService.setCecController(mHdmiCecController);
        mHdmiControlService.setHdmiMhlController(HdmiMhlControllerStub.create(mHdmiControlService));
        mHdmiControlService.setMessageValidator(new HdmiCecMessageValidator(mHdmiControlService));
        mLocalDevices.add(mHdmiCecLocalDeviceTv);
        mHdmiControlService.initPortInfo();
        mHdmiControlService.allocateLogicalAddress(mLocalDevices, INITIATED_BY_ENABLE_CEC);
        mTvPhysicalAddress = 0x0000;
        mNativeWrapper.setPhysicalAddress(mTvPhysicalAddress);
        mTestLooper.dispatchAll();
        mNativeWrapper.clearResultMessages();
    }

    @Test
    public void initialPowerStateIsStandby() {
        assertThat(mHdmiCecLocalDeviceTv.getPowerStatus()).isEqualTo(
                HdmiControlManager.POWER_STATUS_STANDBY);
    }

    @Test
    public void onAddressAllocated_invokesDeviceDiscovery() {
        mNativeWrapper.setPollAddressResponse(ADDR_PLAYBACK_1, SendMessageResult.SUCCESS);
        mHdmiCecLocalDeviceTv.onAddressAllocated(0, HdmiControlService.INITIATED_BY_BOOT_UP);

        mTestLooper.dispatchAll();

        // Check for for <Give Physical Address> being sent to available device (ADDR_PLAYBACK_1).
        // This message is sent as part of the DeviceDiscoveryAction to available devices.
        HdmiCecMessage givePhysicalAddress = HdmiCecMessageBuilder.buildGivePhysicalAddress(ADDR_TV,
                ADDR_PLAYBACK_1);
        assertThat(mNativeWrapper.getResultMessages()).contains(givePhysicalAddress);
    }
}