/*
 * Copyright 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.
 */

//#define LOG_NDEBUG 0
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <memory>
#include <utility>
#define LOG_TAG "EffectsFactoryHalInterfaceTest"

#include <aidl/android/media/audio/common/AudioUuid.h>
#include <media/AidlConversionCppNdk.h>
#include <media/audiohal/EffectsFactoryHalInterface.h>
#include <system/audio_effects/audio_effects_utils.h>
#include <system/audio_effects/effect_aec.h>
#include <system/audio_effects/effect_agc.h>
#include <system/audio_effects/effect_agc2.h>
#include <system/audio_effects/effect_bassboost.h>
#include <system/audio_effects/effect_downmix.h>
#include <system/audio_effects/effect_dynamicsprocessing.h>
#include <system/audio_effects/effect_hapticgenerator.h>
#include <system/audio_effects/effect_loudnessenhancer.h>
#include <system/audio_effects/effect_ns.h>
#include <system/audio_effect.h>

#include <gtest/gtest.h>
#include <utils/RefBase.h>
#include <vibrator/ExternalVibrationUtils.h>

namespace android {

using effect::utils::EffectParamReader;
using effect::utils::EffectParamWriter;
using ::aidl::android::media::audio::common::AudioUuid;

// EffectsFactoryHalInterface
TEST(libAudioHalTest, createEffectsFactoryHalInterface) {
    ASSERT_NE(nullptr, EffectsFactoryHalInterface::create());
}

TEST(libAudioHalTest, queryNumberEffects) {
    auto factory = EffectsFactoryHalInterface::create();
    ASSERT_NE(nullptr, factory);

    uint32_t numEffects = 0;
    EXPECT_EQ(OK, factory->queryNumberEffects(&numEffects));
    EXPECT_NE(0ul, numEffects);
}

TEST(libAudioHalTest, getDescriptorByNumber) {
    auto factory = EffectsFactoryHalInterface::create();
    ASSERT_NE(nullptr, factory);

    uint32_t numEffects = 0;
    EXPECT_EQ(OK, factory->queryNumberEffects(&numEffects));
    EXPECT_NE(0ul, numEffects);

    effect_descriptor_t desc;
    for (uint32_t i = 0; i < numEffects; i++) {
        EXPECT_EQ(OK, factory->getDescriptor(i, &desc));
    }
}

TEST(libAudioHalTest, createEffect) {
    auto factory = EffectsFactoryHalInterface::create();
    ASSERT_NE(nullptr, factory);

    uint32_t numEffects = 0;
    EXPECT_EQ(OK, factory->queryNumberEffects(&numEffects));
    EXPECT_NE(0ul, numEffects);

    effect_descriptor_t desc;
    for (uint32_t i = 0; i < numEffects; i++) {
        sp<EffectHalInterface> interface;
        EXPECT_EQ(OK, factory->getDescriptor(i, &desc));
        EXPECT_EQ(OK, factory->createEffect(&desc.uuid, 1 /* sessionId */, 1 /* ioId */,
                                            1 /* deviceId */, &interface));
    }
}

TEST(libAudioHalTest, getProcessings) {
    auto factory = EffectsFactoryHalInterface::create();
    ASSERT_NE(nullptr, factory);

    const auto &processings = factory->getProcessings();
    if (processings) {
        EXPECT_NE(0UL, processings->preprocess.size() + processings->postprocess.size() +
                               processings->deviceprocess.size());

        auto processingChecker = [](const auto& processings) {
            if (processings.size() != 0) {
                // any process need at least 1 effect inside
                std::for_each(processings.begin(), processings.end(), [](const auto& process) {
                    EXPECT_NE(0ul, process.effects.size());
                    // any effect should have a valid name string, and not proxy
                    for (const auto& effect : process.effects) {
                        SCOPED_TRACE("Effect: {" +
                                     (effect == nullptr
                                              ? "NULL}"
                                              : ("{name: " + effect->name + ", isproxy: " +
                                                 (effect->isProxy ? "true" : "false") + ", sw: " +
                                                 (effect->libSw ? "non-null" : "null") + ", hw: " +
                                                 (effect->libHw ? "non-null" : "null") + "}")));
                        EXPECT_NE(nullptr, effect);
                        EXPECT_NE("", effect->name);
                        EXPECT_EQ(false, effect->isProxy);
                        EXPECT_EQ(nullptr, effect->libSw);
                        EXPECT_EQ(nullptr, effect->libHw);
                    }
                });
            }
        };

        processingChecker(processings->preprocess);
        processingChecker(processings->postprocess);
        processingChecker(processings->deviceprocess);
    } else {
        GTEST_SKIP() << "no processing found, skipping the test";
    }
}

TEST(libAudioHalTest, getHalVersion) {
    auto factory = EffectsFactoryHalInterface::create();
    ASSERT_NE(nullptr, factory);

    auto version = factory->getHalVersion();
    EXPECT_NE(0, version.getMajorVersion());
}

class EffectParamCombination {
  public:
    template <typename P, typename V>
    void init(const P& p, const V& v, size_t len) {
        setBuffer.resize(sizeof(effect_param_t) + sizeof(p) + sizeof(v) + 4);
        getBuffer.resize(sizeof(effect_param_t) + sizeof(p) + len + 4);
        expectBuffer.resize(sizeof(effect_param_t) + sizeof(p) + len + 4);
        parameterSet =
                std::make_shared<EffectParamReader>(createEffectParam(setBuffer.data(), p, v));
        parameterGet =
                std::make_shared<EffectParamReader>(createEffectParam(getBuffer.data(), p, v));
        parameterExpect =
                std::make_shared<EffectParamReader>(createEffectParam(expectBuffer.data(), p, v));
        valueSize = len;
    }

    std::shared_ptr<EffectParamReader> parameterSet; /* setParameter */
    std::shared_ptr<EffectParamReader> parameterGet; /* getParameter */
    std::shared_ptr<EffectParamReader> parameterExpect; /* expected from getParameter */
    size_t valueSize;   /* ValueSize expect to write in reply data buffer */

  private:
    std::vector<uint8_t> setBuffer;
    std::vector<uint8_t> getBuffer;
    std::vector<uint8_t> expectBuffer;

    template <typename P, typename V>
    EffectParamReader createEffectParam(void* buf, const P& p, const V& v) {
        effect_param_t* paramRet = (effect_param_t*)buf;
        paramRet->psize = sizeof(P);
        paramRet->vsize = sizeof(V);
        EffectParamWriter writer(*paramRet);
        EXPECT_EQ(OK, writer.writeToParameter(&p));
        EXPECT_EQ(OK, writer.writeToValue(&v));
        writer.finishValueWrite();
        return writer;
    }
};

template <typename P, typename V>
std::shared_ptr<EffectParamCombination> createEffectParamCombination(const P& p, const V& v,
                                                                     size_t len) {
    auto comb = std::make_shared<EffectParamCombination>();
    comb->init(p, v, len);
    return comb;
}

enum ParamName { TUPLE_UUID, TUPLE_PARAM_COMBINATION };
using EffectParamTestTuple =
        std::tuple<const effect_uuid_t* /* type UUID */, std::shared_ptr<EffectParamCombination>>;

static const effect_uuid_t EXTEND_EFFECT_TYPE_UUID = {
        0xfa81dbde, 0x588b, 0x11ed, 0x9b6a, {0x02, 0x42, 0xac, 0x12, 0x00, 0x02}};

std::vector<EffectParamTestTuple> testPairs = {
        std::make_tuple(FX_IID_AEC,
                        createEffectParamCombination(AEC_PARAM_ECHO_DELAY, 0xff /* echoDelayMs */,
                                                     sizeof(int32_t) /* returnValueSize */)),
        std::make_tuple(FX_IID_AGC,
                        createEffectParamCombination(AGC_PARAM_TARGET_LEVEL, 20 /* targetLevel */,
                                                     sizeof(int16_t) /* returnValueSize */)),
        std::make_tuple(FX_IID_AGC2, createEffectParamCombination(
                                             AGC2_PARAM_FIXED_DIGITAL_GAIN, 15 /* digitalGainDb */,
                                             sizeof(int32_t) /* returnValueSize */)),
        std::make_tuple(SL_IID_BASSBOOST,
                        createEffectParamCombination(BASSBOOST_PARAM_STRENGTH, 20 /* strength */,
                                                     sizeof(int32_t) /* returnValueSize */)),
        std::make_tuple(EFFECT_UIID_DOWNMIX,
                        createEffectParamCombination(DOWNMIX_PARAM_TYPE, DOWNMIX_TYPE_FOLD,
                                                     sizeof(int16_t) /* returnValueSize */)),
        std::make_tuple(SL_IID_DYNAMICSPROCESSING,
                        createEffectParamCombination(
                                std::array<uint32_t, 2>({DP_PARAM_INPUT_GAIN, 0 /* channel */}),
                                30 /* gainDb */, sizeof(int32_t) /* returnValueSize */)),
        std::make_tuple(
                FX_IID_HAPTICGENERATOR,
                createEffectParamCombination(
                        HG_PARAM_HAPTIC_INTENSITY,
                        std::array<uint32_t, 2>(
                                {1, uint32_t(::android::os::HapticScale::HIGH) /* scale */}),
                        0 /* returnValueSize */)),
        std::make_tuple(
                FX_IID_LOUDNESS_ENHANCER,
                createEffectParamCombination(LOUDNESS_ENHANCER_PARAM_TARGET_GAIN_MB, 5 /* gain */,
                                             sizeof(int32_t) /* returnValueSize */)),
        std::make_tuple(FX_IID_NS,
                        createEffectParamCombination(NS_PARAM_LEVEL, 1 /* level */,
                                                     sizeof(int32_t) /* returnValueSize */)),
        std::make_tuple(&EXTEND_EFFECT_TYPE_UUID,
                        createEffectParamCombination(1, 0xbead, sizeof(int32_t)))};

class libAudioHalEffectParamTest : public ::testing::TestWithParam<EffectParamTestTuple> {
  public:
    libAudioHalEffectParamTest()
        : mParamTuple(GetParam()),
          mFactory(EffectsFactoryHalInterface::create()),
          mTypeUuid(std::get<TUPLE_UUID>(mParamTuple)),
          mCombination(std::get<TUPLE_PARAM_COMBINATION>(mParamTuple)),
          mExpectedValue([&]() {
              std::vector<uint8_t> expectData(mCombination->valueSize);
              mCombination->parameterExpect->readFromValue(expectData.data(),
                                                           mCombination->valueSize);
              return expectData;
          }()),
          mDescs([&]() {
              std::vector<effect_descriptor_t> descs;
              if (mFactory && mTypeUuid && OK == mFactory->getDescriptors(mTypeUuid, &descs)) {
                  return descs;
              }
              return descs;
          }()) {}

    void SetUp() override {
        ASSERT_NE(0ul, mDescs.size());
        for (const auto& desc : mDescs) {
            sp<EffectHalInterface> interface = createEffectHal(desc);
            ASSERT_NE(nullptr, interface);
            mHalInterfaces.push_back(interface);
        }
    }

    void initEffect(const sp<EffectHalInterface>& interface) {
        uint32_t initReply = 0;
        uint32_t initReplySize = sizeof(initReply);
        ASSERT_EQ(OK, interface->command(EFFECT_CMD_INIT, 0, nullptr, &initReplySize, &initReply));
    }

    void TearDown() override {
        for (auto& interface : mHalInterfaces) {
            interface->close();
        }
    }

    sp<EffectHalInterface> createEffectHal(const effect_descriptor_t& desc) {
        sp<EffectHalInterface> interface = nullptr;
        if (0 == std::memcmp(&desc.type, mTypeUuid, sizeof(effect_uuid_t)) &&
            OK == mFactory->createEffect(&desc.uuid, 1 /* sessionId */, 1 /* ioId */,
                                         1 /* deviceId */, &interface)) {
            return interface;
        }
        return nullptr;
    }

    void setAndGetParameter(const sp<EffectHalInterface>& interface) {
        uint32_t replySize = sizeof(uint32_t);
        uint8_t reply[replySize];
        auto parameterSet = mCombination->parameterSet;
        ASSERT_EQ(OK,
                  interface->command(EFFECT_CMD_SET_PARAM, (uint32_t)parameterSet->getTotalSize(),
                                     const_cast<effect_param_t*>(&parameterSet->getEffectParam()),
                                     &replySize, &reply))
                << parameterSet->toString();
        ASSERT_EQ(replySize, sizeof(uint32_t));

        effect_param_t* getParam =
                const_cast<effect_param_t*>(&mCombination->parameterGet->getEffectParam());
        size_t maxReplySize = mCombination->valueSize + sizeof(effect_param_t) +
                              sizeof(parameterSet->getPaddedParameterSize());
        replySize = maxReplySize;
        EXPECT_EQ(OK,
                  interface->command(EFFECT_CMD_GET_PARAM, (uint32_t)parameterSet->getTotalSize(),
                                     const_cast<effect_param_t*>(&parameterSet->getEffectParam()),
                                     &replySize, getParam));
        EffectParamReader parameterGet(*getParam);
        EXPECT_EQ(replySize, parameterGet.getTotalSize()) << parameterGet.toString();
        if (mCombination->valueSize) {
            std::vector<uint8_t> response(mCombination->valueSize);
            EXPECT_EQ(OK, parameterGet.readFromValue(response.data(), mCombination->valueSize))
                    << " try get valueSize " << mCombination->valueSize << " from "
                    << parameterGet.toString();
            EXPECT_EQ(response, mExpectedValue);
        }
    }

    const EffectParamTestTuple mParamTuple;
    const sp<EffectsFactoryHalInterface> mFactory;
    const effect_uuid_t* mTypeUuid;
    std::shared_ptr<EffectParamCombination> mCombination;
    const std::vector<uint8_t> mExpectedValue;
    const std::vector<effect_descriptor_t> mDescs;
    std::vector<sp<EffectHalInterface>> mHalInterfaces;
};

TEST_P(libAudioHalEffectParamTest, setAndGetParam) {
    for (auto& interface : mHalInterfaces) {
        EXPECT_NO_FATAL_FAILURE(initEffect(interface));
        EXPECT_NO_FATAL_FAILURE(setAndGetParameter(interface));
    }
}

INSTANTIATE_TEST_SUITE_P(
        libAudioHalEffectParamTest, libAudioHalEffectParamTest, ::testing::ValuesIn(testPairs),
        [](const testing::TestParamInfo<libAudioHalEffectParamTest::ParamType>& info) {
            AudioUuid uuid = ::aidl::android::legacy2aidl_audio_uuid_t_AudioUuid(
                                     *std::get<TUPLE_UUID>(info.param))
                                     .value();
            std::string name = "UUID_" + uuid.toString();
            std::replace_if(
                    name.begin(), name.end(), [](const char c) { return !std::isalnum(c); }, '_');
            return name;
        });
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(libAudioHalEffectParamTest);

int main(int argc, char** argv) {
    ::testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}

// TODO: b/263986405 Add multi-thread testing

} // namespace android