/*
 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
 * 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.
 */

#include "hcamera_service.h"

#include <securec.h>
#include <unordered_set>

#include "access_token.h"
#include "accesstoken_kit.h"
#include "camera_util.h"
#include "iservice_registry.h"
#include "camera_log.h"
#include "system_ability_definition.h"
#include "ipc_skeleton.h"

namespace OHOS {
namespace CameraStandard {
REGISTER_SYSTEM_ABILITY_BY_ID(HCameraService, CAMERA_SERVICE_ID, true)
HCameraService::HCameraService(int32_t systemAbilityId, bool runOnCreate)
    : SystemAbility(systemAbilityId, runOnCreate),
      cameraHostManager_(nullptr),
      streamOperatorCallback_(nullptr),
      muteMode_(false)
{
}

HCameraService::~HCameraService()
{
}

void HCameraService::OnStart()
{
    if (cameraHostManager_ == nullptr) {
        cameraHostManager_ = new(std::nothrow) HCameraHostManager(this);
        if (cameraHostManager_ == nullptr) {
            MEDIA_ERR_LOG("HCameraService OnStart failed to create HCameraHostManager obj");
            return;
        }
    }
    if (cameraHostManager_->Init() != CAMERA_OK) {
        MEDIA_ERR_LOG("HCameraService OnStart failed to init camera host manager.");
    }
    bool res = Publish(this);
    if (res) {
        MEDIA_INFO_LOG("HCameraService OnStart res=%{public}d", res);
    }
}

void HCameraService::OnDump()
{
    MEDIA_INFO_LOG("HCameraService::OnDump called");
}

void HCameraService::OnStop()
{
    MEDIA_INFO_LOG("HCameraService::OnStop called");

    if (cameraHostManager_) {
        cameraHostManager_->DeInit();
        delete cameraHostManager_;
        cameraHostManager_ = nullptr;
    }
    if (streamOperatorCallback_) {
        streamOperatorCallback_ = nullptr;
    }
}

int32_t HCameraService::GetCameras(std::vector<std::string> &cameraIds,
    std::vector<std::shared_ptr<OHOS::Camera::CameraMetadata>> &cameraAbilityList)
{
    CAMERA_SYNC_TRACE;
    int32_t ret = cameraHostManager_->GetCameras(cameraIds);
    if (ret != CAMERA_OK) {
        MEDIA_ERR_LOG("HCameraService::GetCameras failed");
        return ret;
    }

    std::shared_ptr<OHOS::Camera::CameraMetadata> cameraAbility;
    for (auto id : cameraIds) {
        ret = cameraHostManager_->GetCameraAbility(id, cameraAbility);
        if (ret != CAMERA_OK) {
            MEDIA_ERR_LOG("HCameraService::GetCameraAbility failed");
            return ret;
        }

        if (cameraAbility == nullptr) {
            MEDIA_ERR_LOG("HCameraService::GetCameraAbility return null");
            return CAMERA_INVALID_ARG;
        }

        camera_metadata_item_t item;
        common_metadata_header_t* metadata = cameraAbility->get();
        camera_position_enum_t cameraPosition = OHOS_CAMERA_POSITION_OTHER;
        int ret = OHOS::Camera::FindCameraMetadataItem(metadata, OHOS_ABILITY_CAMERA_POSITION, &item);
        if (ret == CAM_META_SUCCESS) {
            cameraPosition = static_cast<camera_position_enum_t>(item.data.u8[0]);
        }

        camera_type_enum_t cameraType = OHOS_CAMERA_TYPE_UNSPECIFIED;
        ret = OHOS::Camera::FindCameraMetadataItem(metadata, OHOS_ABILITY_CAMERA_TYPE, &item);
        if (ret == CAM_META_SUCCESS) {
            cameraType = static_cast<camera_type_enum_t>(item.data.u8[0]);
        }

        camera_connection_type_t connectionType = OHOS_CAMERA_CONNECTION_TYPE_BUILTIN;
        ret = OHOS::Camera::FindCameraMetadataItem(metadata, OHOS_ABILITY_CAMERA_CONNECTION_TYPE, &item);
        if (ret == CAM_META_SUCCESS) {
            connectionType = static_cast<camera_connection_type_t>(item.data.u8[0]);
        }

        bool isMirrorSupported = false;
        ret = OHOS::Camera::FindCameraMetadataItem(metadata, OHOS_CONTROL_CAPTURE_MIRROR_SUPPORTED, &item);
        if (ret == CAM_META_SUCCESS) {
            isMirrorSupported = ((item.data.u8[0] == 1) || (item.data.u8[0] == 0));
        }

        CAMERA_SYSEVENT_STATISTIC(CreateMsg("CameraManager GetCameras camera ID:%s, Camera position:%d,"
                                            " Camera Type:%d, Connection Type:%d, Mirror support:%d", id.c_str(),
                                            cameraPosition, cameraType, connectionType, isMirrorSupported));
        cameraAbilityList.emplace_back(cameraAbility);
    }

    return ret;
}

int32_t HCameraService::CreateCameraDevice(std::string cameraId, sptr<ICameraDeviceService> &device)
{
    CAMERA_SYNC_TRACE;
    OHOS::Security::AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();

    std::string permissionName = OHOS_PERMISSION_CAMERA;
    int32_t ret = CheckPermission(permissionName, callerToken);
    if (ret != CAMERA_OK) {
        return ret;
    }
    // if callerToken is invalid, will not call IsAllowedUsingPermission
    if (IsValidTokenId(callerToken) &&
        !Security::AccessToken::PrivacyKit::IsAllowedUsingPermission(callerToken, permissionName)) {
        MEDIA_ERR_LOG("HCameraService::CreateCameraDevice is not allowed!");
        return CAMERA_ALLOC_ERROR;
    }

    sptr<HCameraDevice> cameraDevice = new(std::nothrow) HCameraDevice(cameraHostManager_, cameraId, callerToken);
    if (cameraDevice == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreateCameraDevice HCameraDevice allocation failed");
        return CAMERA_ALLOC_ERROR;
    }

    // when create camera device, update mute setting truely.
    if (IsCameraMuteSupported(cameraId)) {
        if (UpdateMuteSetting(cameraDevice, muteMode_) != CAMERA_OK) {
            MEDIA_ERR_LOG("HCameraService::CreateCameraDevice UpdateMuteSetting Failed, cameraId: %{public}s",
                          cameraId.c_str());
        }
    } else {
        MEDIA_ERR_LOG("HCameraService::CreateCameraDevice MuteCamera not Supported");
    }
    cameraDevice->SetStatusCallback(cameraServiceCallbacks_);
    devices_[cameraId] = cameraDevice;
    pid_t pid = IPCSkeleton::GetCallingPid();
    MEDIA_INFO_LOG("HCameraService::CreateCameraDevice Calling pid = %{public}d, Camera created size = %{public}zu",
                   pid, camerasForPid_[pid].size());
    camerasForPid_[pid].insert(cameraId);
    device = cameraDevice;
    CAMERA_SYSEVENT_STATISTIC(CreateMsg("CameraManager_CreateCameraInput CameraId:%s", cameraId.c_str()));
    return CAMERA_OK;
}

int32_t HCameraService::CreateCaptureSession(sptr<ICaptureSession> &session)
{
    CAMERA_SYNC_TRACE;
    std::lock_guard<std::mutex> lock(mutex_);
    sptr<HCaptureSession> captureSession;
    if (streamOperatorCallback_ == nullptr) {
        streamOperatorCallback_ = new(std::nothrow) StreamOperatorCallback();
        if (streamOperatorCallback_ == nullptr) {
            MEDIA_ERR_LOG("HCameraService::CreateCaptureSession streamOperatorCallback_ allocation failed");
            return CAMERA_ALLOC_ERROR;
        }
    }

    OHOS::Security::AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
    captureSession = new(std::nothrow) HCaptureSession(cameraHostManager_, streamOperatorCallback_, callerToken);
    if (captureSession == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreateCaptureSession HCaptureSession allocation failed");
        return CAMERA_ALLOC_ERROR;
    }
    session = captureSession;
    return CAMERA_OK;
}

int32_t HCameraService::CreatePhotoOutput(const sptr<OHOS::IBufferProducer> &producer, int32_t format,
                                          int32_t width, int32_t height,
                                          sptr<IStreamCapture> &photoOutput)
{
    CAMERA_SYNC_TRACE;
    if ((producer == nullptr) || (width == 0) || (height == 0)) {
        MEDIA_ERR_LOG("HCameraService::CreatePhotoOutput producer is null");
        return CAMERA_INVALID_ARG;
    }
    sptr<HStreamCapture> streamCapture = new(std::nothrow) HStreamCapture(producer, format, width, height);
    if (streamCapture == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreatePhotoOutput HStreamCapture allocation failed");
        return CAMERA_ALLOC_ERROR;
    }
    POWERMGR_SYSEVENT_CAMERA_CONFIG(PHOTO, producer->GetDefaultWidth(),
                                    producer->GetDefaultHeight());
    photoOutput = streamCapture;
    return CAMERA_OK;
}

int32_t HCameraService::CreateDeferredPreviewOutput(int32_t format,
                                                    int32_t width, int32_t height,
                                                    sptr<IStreamRepeat> &previewOutput)
{
    CAMERA_SYNC_TRACE;
    sptr<HStreamRepeat> streamDeferredPreview;

    if ((width == 0) || (height == 0)) {
        MEDIA_ERR_LOG("HCameraService::CreateDeferredPreviewOutput producer is null");
        return CAMERA_INVALID_ARG;
    }
    streamDeferredPreview = new(std::nothrow) HStreamRepeat(nullptr, format, width, height, false);
    if (streamDeferredPreview == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreateDeferredPreviewOutput HStreamRepeat allocation failed");
        return CAMERA_ALLOC_ERROR;
    }
    previewOutput = streamDeferredPreview;
    return CAMERA_OK;
}

int32_t HCameraService::CreatePreviewOutput(const sptr<OHOS::IBufferProducer> &producer, int32_t format,
                                            int32_t width, int32_t height,
                                            sptr<IStreamRepeat> &previewOutput)
{
    CAMERA_SYNC_TRACE;
    sptr<HStreamRepeat> streamRepeatPreview;

    if ((producer == nullptr) || (width == 0) || (height == 0)) {
        MEDIA_ERR_LOG("HCameraService::CreatePreviewOutput producer is null");
        return CAMERA_INVALID_ARG;
    }
    streamRepeatPreview = new(std::nothrow) HStreamRepeat(producer, format, width, height, false);
    if (streamRepeatPreview == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreatePreviewOutput HStreamRepeat allocation failed");
        return CAMERA_ALLOC_ERROR;
    }
    POWERMGR_SYSEVENT_CAMERA_CONFIG(PREVIEW, width, height);
    previewOutput = streamRepeatPreview;
    return CAMERA_OK;
}

int32_t HCameraService::CreateMetadataOutput(const sptr<OHOS::IBufferProducer> &producer, int32_t format,
                                             sptr<IStreamMetadata> &metadataOutput)
{
    CAMERA_SYNC_TRACE;
    sptr<HStreamMetadata> streamMetadata;

    if (producer == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreateMetadataOutput producer is null");
        return CAMERA_INVALID_ARG;
    }
    streamMetadata = new(std::nothrow) HStreamMetadata(producer, format);
    if (streamMetadata == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreateMetadataOutput HStreamMetadata allocation failed");
        return CAMERA_ALLOC_ERROR;
    }
    POWERMGR_SYSEVENT_CAMERA_CONFIG(METADATA, producer->GetDefaultWidth(),
                                    producer->GetDefaultHeight());
    metadataOutput = streamMetadata;
    return CAMERA_OK;
}

int32_t HCameraService::CreateVideoOutput(const sptr<OHOS::IBufferProducer> &producer, int32_t format,
                                          int32_t width, int32_t height,
                                          sptr<IStreamRepeat> &videoOutput)
{
    CAMERA_SYNC_TRACE;
    sptr<HStreamRepeat> streamRepeatVideo;

    if ((producer == nullptr) || (width == 0) || (height == 0)) {
        MEDIA_ERR_LOG("HCameraService::CreateVideoOutput producer is null");
        return CAMERA_INVALID_ARG;
    }
    streamRepeatVideo = new(std::nothrow) HStreamRepeat(producer, format, width, height, true);
    if (streamRepeatVideo == nullptr) {
        MEDIA_ERR_LOG("HCameraService::CreateVideoOutput HStreamRepeat allocation failed");
        return CAMERA_ALLOC_ERROR;
    }
    POWERMGR_SYSEVENT_CAMERA_CONFIG(VIDEO, producer->GetDefaultWidth(),
                                    producer->GetDefaultHeight());
    videoOutput = streamRepeatVideo;
    return CAMERA_OK;
}

void HCameraService::OnCameraStatus(const std::string& cameraId, CameraStatus status)
{
    std::lock_guard<std::mutex> lock(cbMutex_);
    MEDIA_INFO_LOG("HCameraService::OnCameraStatus "
                   "callbacks.size = %{public}zu, cameraId = %{public}s, status = %{public}d, pid = %{public}d",
                   cameraServiceCallbacks_.size(), cameraId.c_str(), status, IPCSkeleton::GetCallingPid());
    for (auto it : cameraServiceCallbacks_) {
        if (it.second == nullptr) {
            MEDIA_ERR_LOG("HCameraService::OnCameraStatus cameraServiceCallback is null, pid = %{public}d",
                          IPCSkeleton::GetCallingPid());
            continue;
        }
        if (it.second != nullptr) {
            it.second->OnCameraStatusChanged(cameraId, status);
        }
    }
}

void HCameraService::OnFlashlightStatus(const std::string& cameraId, FlashStatus status)
{
    std::lock_guard<std::mutex> lock(cbMutex_);
    MEDIA_INFO_LOG("HCameraService::OnFlashlightStatus "
                   "callbacks.size = %{public}zu, cameraId = %{public}s, status = %{public}d, pid = %{public}d",
                   cameraServiceCallbacks_.size(), cameraId.c_str(), status, IPCSkeleton::GetCallingPid());
    for (auto it : cameraServiceCallbacks_) {
        if (it.second == nullptr) {
            MEDIA_ERR_LOG("HCameraService::OnCameraStatus cameraServiceCallback is null, pid = %{public}d",
                          IPCSkeleton::GetCallingPid());
            continue;
        }
        if (it.second != nullptr) {
            it.second->OnFlashlightStatusChanged(cameraId, status);
        }
    }
}

int32_t HCameraService::SetCallback(sptr<ICameraServiceCallback> &callback)
{
    std::lock_guard<std::mutex> lock(cbMutex_);
    pid_t pid = IPCSkeleton::GetCallingPid();
    MEDIA_INFO_LOG("HCameraService::SetCallback pid = %{public}d", pid);
    if (callback == nullptr) {
        MEDIA_ERR_LOG("HCameraService::SetCallback callback is null");
        return CAMERA_INVALID_ARG;
    }
    auto callbackItem = cameraServiceCallbacks_.find(pid);
    if (callbackItem != cameraServiceCallbacks_.end()) {
        callbackItem->second = nullptr;
        (void)cameraServiceCallbacks_.erase(callbackItem);
    }
    cameraServiceCallbacks_.insert(std::make_pair(pid, callback));
    for (auto it : devices_) {
        MEDIA_INFO_LOG("HCameraService::SetCallback Camera:[%{public}s] SetStatusCallback", it.first.c_str());
        auto item = it.second.promote();
        if (item != nullptr) {
            item->SetStatusCallback(cameraServiceCallbacks_);
        }
    }
    return CAMERA_OK;
}

int32_t HCameraService::CloseCameraForDestory(pid_t pid)
{
    MEDIA_INFO_LOG("HCameraService::CloseCameraForDestory pid = %{public}d, Camera created size = %{public}zu",
                   pid, camerasForPid_[pid].size());
    auto cameraIds = camerasForPid_[pid];
    for (std::set<std::string>::iterator itIds = cameraIds.begin(); itIds != cameraIds.end(); itIds++) {
        for (auto it : devices_) {
            auto item = it.second.promote();
            if (it.first != *itIds || item == nullptr) {
                continue;
            } else {
                MEDIA_INFO_LOG("HCameraService::CloseCameraForDestory pid = %{public}d,Camera:[%{public}s] need close",
                               pid, it.first.c_str());
                item->Close();
                item = nullptr;
            }
        }
    }
    cameraIds.clear();
    size_t eraseSize = camerasForPid_.erase(pid);
    MEDIA_INFO_LOG("HCameraService::CloseCameraForDestory remove cameraId size = %{public}zu", eraseSize);
    return CAMERA_OK;
}

int32_t HCameraService::UnSetCallback(pid_t pid)
{
    std::lock_guard<std::mutex> lock(cbMutex_);
    MEDIA_INFO_LOG("HCameraService::UnSetCallback pid = %{public}d, size = %{public}zu",
                   pid, cameraServiceCallbacks_.size());
    if (!cameraServiceCallbacks_.empty()) {
        MEDIA_INFO_LOG("HCameraDevice::SetStatusCallback statusSvcCallbacks_ is not empty, reset it");
        auto it = cameraServiceCallbacks_.find(pid);
        if ((it != cameraServiceCallbacks_.end()) && (it->second != nullptr)) {
            it->second = nullptr;
            cameraServiceCallbacks_.erase(it);
        }
    }
    MEDIA_INFO_LOG("HCameraService::UnSetCallback after erase pid = %{public}d, size = %{public}zu",
                   pid, cameraServiceCallbacks_.size());
    for (auto it : devices_) {
        MEDIA_INFO_LOG("HCameraService::UnSetCallback Camera:[%{public}s] SetStatusCallback", it.first.c_str());
        auto item = it.second.promote();
        if (item != nullptr) {
            item->SetStatusCallback(cameraServiceCallbacks_);
        }
    }
    return CAMERA_OK;
}

int32_t HCameraService::SetMuteCallback(sptr<ICameraMuteServiceCallback> &callback)
{
    OHOS::Security::AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();
    if (callback == nullptr) {
        MEDIA_ERR_LOG("HCameraService::SetMuteCallback callback is null");
        return CAMERA_INVALID_ARG;
    }
    cameraMuteServiceCallbacks_.insert(std::make_pair(callerToken, callback));
    return CAMERA_OK;
}

bool HCameraService::IsCameraMuteSupported(std::string cameraId)
{
    bool isMuteSupported = false;
    std::shared_ptr<OHOS::Camera::CameraMetadata> cameraAbility;
    int32_t ret = cameraHostManager_->GetCameraAbility(cameraId, cameraAbility);
    if (ret != CAMERA_OK) {
        MEDIA_ERR_LOG("HCameraService::IsCameraMuted GetCameraAbility failed");
        return false;
    }
    camera_metadata_item_t item;
    common_metadata_header_t* metadata = cameraAbility->get();
    ret = OHOS::Camera::FindCameraMetadataItem(metadata, OHOS_ABILITY_MUTE_MODES, &item);
    if (ret == CAM_META_SUCCESS) {
        isMuteSupported = true;
    } else {
        isMuteSupported = false;
        MEDIA_ERR_LOG("HCameraService::IsCameraMuted not find MUTE ability");
    }
    MEDIA_DEBUG_LOG("HCameraService::IsCameraMuted supported: %{public}d", isMuteSupported);
    return isMuteSupported;
}

int32_t HCameraService::UpdateMuteSetting(wptr<HCameraDevice> cameraDevice, bool muteMode)
{
    constexpr uint8_t MUTE_ON = 1;
    constexpr uint8_t MUTE_OFF = 0;
    constexpr int32_t DEFAULT_ITEMS = 1;
    constexpr int32_t DEFAULT_DATA_LENGTH = 1;
    std::shared_ptr<OHOS::Camera::CameraMetadata> changedMetadata =
        std::make_shared<OHOS::Camera::CameraMetadata>(DEFAULT_ITEMS, DEFAULT_DATA_LENGTH);
    bool status = false;
    int32_t ret;
    int32_t count = 1;
    uint8_t mode = muteMode ? MUTE_ON : MUTE_OFF;
    camera_metadata_item_t item;

    MEDIA_DEBUG_LOG("UpdateMuteSetting muteMode: %{public}d", muteMode);

    ret = OHOS::Camera::FindCameraMetadataItem(changedMetadata->get(), OHOS_CONTROL_MUTE_MODE, &item);
    if (ret == CAM_META_ITEM_NOT_FOUND) {
        status = changedMetadata->addEntry(OHOS_CONTROL_MUTE_MODE, &mode, count);
    } else if (ret == CAM_META_SUCCESS) {
        status = changedMetadata->updateEntry(OHOS_CONTROL_MUTE_MODE, &mode, count);
    }
    ret = cameraDevice->UpdateSetting(changedMetadata);
    if (!status || ret != CAMERA_OK) {
        MEDIA_ERR_LOG("UpdateMuteSetting muteMode Failed");
        return CAMERA_UNKNOWN_ERROR;
    }
    return CAMERA_OK;
}

int32_t HCameraService::MuteCamera(bool muteMode)
{
    OHOS::Security::AccessToken::AccessTokenID callerToken = IPCSkeleton::GetCallingTokenID();

    std::string permissionName = OHOS_PERMISSION_MANAGE_CAMERA_CONFIG;
    int32_t ret = CheckPermission(permissionName, callerToken);
    if (ret != CAMERA_OK) {
        MEDIA_ERR_LOG("HCameraService::MuteCamera failed permission is : %{public}s", permissionName.c_str());
        return ret;
    }

    bool oldMuteMode = muteMode_;
    if (muteMode == oldMuteMode) {
        return CAMERA_OK;
    } else {
        muteMode_ = muteMode;
    }
    if (devices_.empty()) {
        if (!cameraMuteServiceCallbacks_.empty()) {
            for (auto cb : cameraMuteServiceCallbacks_) {
                cb.second->OnCameraMute(muteMode);
                CAMERA_SYSEVENT_BEHAVIOR(CreateMsg("OnCameraMute! current Camera muteMode:%d", muteMode));
            }
        }
        return CAMERA_OK;
    }

    for (auto it : devices_) {
        if (!IsCameraMuteSupported(it.first)) {
            MEDIA_ERR_LOG("HCameraService::MuteCamera not Supported Mute,cameraId: %{public}s", it.first.c_str());
            break;
        }
        auto item = it.second.promote();
        if (item != nullptr) {
            ret = UpdateMuteSetting(it.second, muteMode);
        }
        if (ret != CAMERA_OK) {
            MEDIA_ERR_LOG("HCameraService::MuteCamera UpdateMuteSetting Failed, cameraId: %{public}s",
                          it.first.c_str());
            muteMode_ = oldMuteMode;
            break;
        }
    }
    if (!cameraMuteServiceCallbacks_.empty() && ret == CAMERA_OK) {
        for (auto cb : cameraMuteServiceCallbacks_) {
            if (cb.second) {
                cb.second->OnCameraMute(muteMode);
            }
            CAMERA_SYSEVENT_BEHAVIOR(CreateMsg("OnCameraMute! current Camera muteMode:%d", muteMode));
        }
    }
    return ret;
}

int32_t HCameraService::IsCameraMuted(bool &muteMode)
{
    muteMode = muteMode_;
    MEDIA_DEBUG_LOG("HCameraService::IsCameraMuted success. isMuted: %{public}d", muteMode);
    return CAMERA_OK;
}

void HCameraService::CameraSummary(std::vector<std::string> cameraIds,
    std::string& dumpString)
{
    dumpString += "# Number of Cameras:[" + std::to_string(cameraIds.size()) + "]:\n";
    dumpString += "# Number of Active Cameras:[" + std::to_string(devices_.size()) + "]:\n";
    HCaptureSession::CameraSessionSummary(dumpString);
}

void HCameraService::CameraDumpAbility(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    int ret;
    dumpString += "    ## Camera Ability List: \n";

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_CAMERA_POSITION, &item);
    if (ret == CAM_META_SUCCESS) {
        std::map<int, std::string>::const_iterator iter =
            g_cameraPos.find(item.data.u8[0]);
        if (iter != g_cameraPos.end()) {
            dumpString += "        Camera Position:["
                + iter->second
                + "]:    ";
        }
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_CAMERA_TYPE, &item);
    if (ret == CAM_META_SUCCESS) {
        std::map<int, std::string>::const_iterator iter =
            g_cameraType.find(item.data.u8[0]);
        if (iter != g_cameraType.end()) {
            dumpString += "Camera Type:["
                + iter->second
                + "]:    ";
        }
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_CAMERA_CONNECTION_TYPE, &item);
    if (ret == CAM_META_SUCCESS) {
        std::map<int, std::string>::const_iterator iter =
            g_cameraConType.find(item.data.u8[0]);
        if (iter != g_cameraConType.end()) {
            dumpString += "Camera Connection Type:["
                + iter->second
                + "]:\n";
        }
    }
}

void HCameraService::CameraDumpStreaminfo(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    int ret;
    constexpr uint32_t unitLen = 3;
    uint32_t widthOffset = 1;
    uint32_t heightOffset = 2;
    dumpString += "        ### Camera Available stream configuration List: \n";
    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry,
                                               OHOS_ABILITY_STREAM_AVAILABLE_BASIC_CONFIGURATIONS, &item);
    if (ret == CAM_META_SUCCESS) {
        dumpString += "            Number Stream Info: "
            + std::to_string(item.count/unitLen) + "\n";
        for (uint32_t index = 0; index < item.count; index += unitLen) {
            std::map<int, std::string>::const_iterator iter =
                g_cameraFormat.find(item.data.i32[index]);
            if (iter != g_cameraFormat.end()) {
                dumpString += "            Format:["
                        + iter->second
                        + "]:    ";
                dumpString += "Size:[Width:"
                        + std::to_string(item.data.i32[index + widthOffset])
                        + " Height:"
                        + std::to_string(item.data.i32[index + heightOffset])
                        + "]:\n";
            }
        }
    }
}

void HCameraService::CameraDumpZoom(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    dumpString += "    ## Zoom Related Info: \n";
    camera_metadata_item_t item;
    int ret;
    int32_t minIndex = 0;
    int32_t maxIndex = 1;
    uint32_t zoomRangeCount = 2;
    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_ZOOM_CAP, &item);
    if ((ret == CAM_META_SUCCESS) && (item.count == zoomRangeCount)) {
        dumpString += "        Available Zoom Capability:["
            + std::to_string(item.data.i32[minIndex]) + "  "
            + std::to_string(item.data.i32[maxIndex])
            + "]:\n";
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_SCENE_ZOOM_CAP, &item);
    if ((ret == CAM_META_SUCCESS) && (item.count == zoomRangeCount)) {
        dumpString += "        Available scene Zoom Capability:["
            + std::to_string(item.data.i32[minIndex]) + "  "
            + std::to_string(item.data.i32[maxIndex])
            + "]:\n";
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_ZOOM_RATIO_RANGE, &item);
    if ((ret == CAM_META_SUCCESS) && (item.count == zoomRangeCount)) {
        dumpString += "        Available Zoom Ratio Range:["
            + std::to_string(item.data.f[minIndex])
            + std::to_string(item.data.f[maxIndex])
            + "]:\n";
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_CONTROL_ZOOM_RATIO, &item);
    if (ret == CAM_META_SUCCESS) {
        dumpString += "        Set Zoom Ratio:["
            + std::to_string(item.data.f[0])
            + "]:\n";
    }
}

void HCameraService::CameraDumpFlash(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    int ret;
    dumpString += "    ## Flash Related Info: \n";
    dumpString += "        Available Flash Modes:[";
    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_FLASH_MODES, &item);
    if (ret == CAM_META_SUCCESS) {
        for (uint32_t i = 0; i < item.count; i++) {
            std::map<int, std::string>::const_iterator iter =
                g_cameraFlashMode.find(item.data.u8[i]);
            if (iter != g_cameraFlashMode.end()) {
                dumpString += " " + iter->second;
            }
        }
        dumpString += "]:\n";
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_CONTROL_FLASH_MODE, &item);
    if (ret == CAM_META_SUCCESS) {
        std::map<int, std::string>::const_iterator iter =
            g_cameraFlashMode.find(item.data.u8[0]);
        if (iter != g_cameraFlashMode.end()) {
            dumpString += "        Set Flash Mode:["
                + iter->second
                + "]:\n";
        }
    }
}

void HCameraService::CameraDumpAF(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    int ret;
    dumpString += "    ## AF Related Info: \n";
    dumpString += "        Available Focus Modes:[";

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_FOCUS_MODES, &item);
    if (ret == CAM_META_SUCCESS) {
        for (uint32_t i = 0; i < item.count; i++) {
            std::map<int, std::string>::const_iterator iter =
                g_cameraFocusMode.find(item.data.u8[i]);
            if (iter != g_cameraFocusMode.end()) {
                dumpString += " " + iter->second;
            }
        }
        dumpString += "]:\n";
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_CONTROL_FOCUS_MODE, &item);
    if (ret == CAM_META_SUCCESS) {
        std::map<int, std::string>::const_iterator iter =
            g_cameraFocusMode.find(item.data.u8[0]);
        if (iter != g_cameraFocusMode.end()) {
            dumpString += "        Set Focus Mode:["
                + iter->second
                + "]:\n";
        }
    }
}

void HCameraService::CameraDumpAE(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    int ret;
    dumpString += "    ## AE Related Info: \n";
    dumpString += "        Available Exposure Modes:[";

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_EXPOSURE_MODES, &item);
    if (ret == CAM_META_SUCCESS) {
        for (uint32_t i = 0; i < item.count; i++) {
            std::map<int, std::string>::const_iterator iter =
                g_cameraExposureMode.find(item.data.u8[i]);
            if (iter != g_cameraExposureMode.end()) {
                dumpString += " " + iter->second;
            }
        }
        dumpString += "]:\n";
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_CONTROL_EXPOSURE_MODE, &item);
    if (ret == CAM_META_SUCCESS) {
        std::map<int, std::string>::const_iterator iter =
            g_cameraExposureMode.find(item.data.u8[0]);
        if (iter != g_cameraExposureMode.end()) {
            dumpString += "        Set exposure Mode:["
                + iter->second
                + "]:\n";
        }
    }
}

void HCameraService::CameraDumpSensorInfo(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    int ret;
    dumpString += "    ## Sensor Info Info: \n";
    int32_t leftIndex = 0;
    int32_t topIndex = 1;
    int32_t rightIndex = 2;
    int32_t bottomIndex = 3;
    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_SENSOR_INFO_ACTIVE_ARRAY_SIZE, &item);
    if (ret == CAM_META_SUCCESS) {
        dumpString += "        Array:["
            + std::to_string(item.data.i32[leftIndex]) + " "
            + std::to_string(item.data.i32[topIndex]) + " "
            + std::to_string(item.data.i32[rightIndex]) + " "
            + std::to_string(item.data.i32[bottomIndex])
            + "]:\n";
    }
}

void HCameraService::CameraDumpVideoStabilization(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    int ret;
    dumpString += "    ## Video Stabilization Related Info: \n";
    dumpString += "        Available Video Stabilization Modes:[";

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_VIDEO_STABILIZATION_MODES, &item);
    if (ret == CAM_META_SUCCESS) {
        for (uint32_t i = 0; i < item.count; i++) {
            std::map<int, std::string>::const_iterator iter =
                g_cameraVideoStabilizationMode.find(item.data.u8[i]);
            if (iter != g_cameraVideoStabilizationMode.end()) {
                dumpString += " " + iter->second;
            }
        }
        dumpString += "]:\n";
    }

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_CONTROL_VIDEO_STABILIZATION_MODE, &item);
    if (ret == CAM_META_SUCCESS) {
        std::map<int, std::string>::const_iterator iter =
            g_cameraVideoStabilizationMode.find(item.data.u8[0]);
        if (iter != g_cameraVideoStabilizationMode.end()) {
            dumpString += "        Set Stabilization Mode:["
                + iter->second
                + "]:\n";
        }
    }
}

void HCameraService::CameraDumpVideoFrameRateRange(common_metadata_header_t* metadataEntry,
    std::string& dumpString)
{
    camera_metadata_item_t item;
    const int32_t FRAME_RATE_RANGE_STEP = 2;
    int ret;
    dumpString += "    ## Video FrameRateRange Related Info: \n";
    dumpString += "        Available FrameRateRange :\n";

    ret = OHOS::Camera::FindCameraMetadataItem(metadataEntry, OHOS_ABILITY_FPS_RANGES, &item);
    if (ret == CAM_META_SUCCESS) {
        for (uint32_t i = 0; i < (item.count - 1); i += FRAME_RATE_RANGE_STEP) {
            dumpString += "            [ " + std::to_string(item.data.i32[i]) + ", " +
                          std::to_string(item.data.i32[i+1]) + " ]\n";
        }
        dumpString += "\n";
    }
}

int32_t HCameraService::Dump(int fd, const std::vector<std::u16string>& args)
{
    std::unordered_set<std::u16string> argSets;
    std::u16string arg1(u"summary");
    std::u16string arg2(u"ability");
    std::u16string arg3(u"clientwiseinfo");
    for (decltype(args.size()) index = 0; index < args.size(); ++index) {
        argSets.insert(args[index]);
    }
    std::string dumpString;
    std::vector<std::string> cameraIds;
    std::vector<std::shared_ptr<OHOS::Camera::CameraMetadata>> cameraAbilityList;
    int32_t capIdx = 0;
    std::shared_ptr<OHOS::Camera::CameraMetadata> metadata;
    int ret;

    ret = GetCameras(cameraIds, cameraAbilityList);
    if ((ret != CAMERA_OK) || cameraIds.empty()
        || (cameraAbilityList.empty())) {
        return CAMERA_INVALID_STATE;
    }
    if (args.size() == 0 || argSets.count(arg1) != 0) {
        dumpString += "-------- Summary -------\n";
        CameraSummary(cameraIds, dumpString);
    }
    if (args.size() == 0 || argSets.count(arg2) != 0) {
        dumpString += "-------- CameraDevice -------\n";
        for (auto& it : cameraIds) {
            metadata = cameraAbilityList[capIdx++];
            common_metadata_header_t* metadataEntry = metadata->get();
            dumpString += "# Camera ID:[" + it + "]: \n";
            CameraDumpAbility(metadataEntry, dumpString);
            CameraDumpStreaminfo(metadataEntry, dumpString);
            CameraDumpZoom(metadataEntry, dumpString);
            CameraDumpFlash(metadataEntry, dumpString);
            CameraDumpAF(metadataEntry, dumpString);
            CameraDumpAE(metadataEntry, dumpString);
            CameraDumpSensorInfo(metadataEntry, dumpString);
            CameraDumpVideoStabilization(metadataEntry, dumpString);
            CameraDumpVideoFrameRateRange(metadataEntry, dumpString);
        }
    }
    if (args.size() == 0 || argSets.count(arg3) != 0) {
        dumpString += "-------- Clientwise Info -------\n";
        HCaptureSession::dumpSessions(dumpString);
    }

    if (dumpString.size() == 0) {
        MEDIA_ERR_LOG("Dump string empty!");
        return CAMERA_INVALID_STATE;
    }

    (void)write(fd, dumpString.c_str(), dumpString.size());
    return CAMERA_OK;
}
} // namespace CameraStandard
} // namespace OHOS