cocos-enhance-kit/cocos2d-x/cocos/platform/openharmony/FileUtils-openharmony.cpp

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#include "cocos/platform/openharmony/FileUtils-openharmony.h"
#include <hilog/log.h>
#include <sys/stat.h>
#include <cstdio>
#include <regex>

#include <string>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <dirent.h>
#include <unistd.h>
#include <assert.h>

#include "base/CCLog.h"

#include "scripting/js-bindings/jswrapper/napi/HelperMacros.h"
#define ASSETS_FOLDER_WRITEABLE_PATH "/data/accounts/account_0/applications/ohos.example.xcomponent1/ohos.example.xcomponent1/writeable_path"
#include "rawfile/raw_file_manager.h"

namespace cocos2d {

NativeResourceManager* FileUtilsOpenHarmony::_nativeResourceManager = nullptr;

FileUtils *createFileUtils() {
    return new (std::nothrow) FileUtilsOpenHarmony();
}

FileUtilsOpenHarmony::FileUtilsOpenHarmony() {
    // init();
}

std::string FileUtilsOpenHarmony::_ohWritablePath;

bool FileUtilsOpenHarmony::initResourceManager(napi_env env, napi_value param) {
    _nativeResourceManager = OH_ResourceManager_InitNativeResourceManager(env, param);
    return true;
}

FileUtils* FileUtils::getInstance()
{
    if (s_sharedFileUtils == nullptr)
    {
        s_sharedFileUtils = new (std::nothrow) FileUtilsOpenHarmony();
        if (!s_sharedFileUtils->init())
        {
          delete s_sharedFileUtils;
          s_sharedFileUtils = nullptr;
          cocos2d::log("ERROR: Could not init CCFileUtilsOpenHarmony");
        }
    }
    return s_sharedFileUtils;
}


FileUtils::Status FileUtilsOpenHarmony::getContents(const std::string &filename, ResizableBuffer *buffer) {
    if (filename.empty()) {
        return FileUtils::Status::NotExists;
    }

    std::string fullPath = fullPathForFilename(filename);
    if (fullPath.empty()) {
        return FileUtils::Status::NotExists;
    }

    if (fullPath[0] == '/') {
        return FileUtils::getContents(fullPath, buffer);
    }

    if (nullptr == _nativeResourceManager) {
        cocos2d::log("[ERROR]ativeResourceManager is nullptr");
        return FileUtils::Status::NotInitialized;
    }

    RawFile *rawFile = OH_ResourceManager_OpenRawFile(_nativeResourceManager, fullPath.c_str());
    if (nullptr == rawFile) {
        return FileUtils::Status::OpenFailed;
    }

    auto size = OH_ResourceManager_GetRawFileSize(rawFile);
    buffer->resize(size);

    assert(buffer->buffer());

    int readsize = OH_ResourceManager_ReadRawFile(rawFile, buffer->buffer(), size);
    // TODO(unknown): read error
    if (readsize < size) {
        if (readsize >= 0) {
            buffer->resize(readsize);
        }
        OH_ResourceManager_CloseRawFile(rawFile);
        return FileUtils::Status::ReadFailed;
    }
    OH_ResourceManager_CloseRawFile(rawFile);
    return FileUtils::Status::OK;
}

FileUtilsOpenHarmony::~FileUtilsOpenHarmony() {
    if(_nativeResourceManager)
        OH_ResourceManager_ReleaseNativeResourceManager(_nativeResourceManager);
}

bool FileUtilsOpenHarmony::init() {
    _defaultResRootPath = "";
    return FileUtils::init();
}

bool FileUtilsOpenHarmony::isAbsolutePath(const std::string &strPath) const {
    return !strPath.empty() && (strPath[0] == '/');
}

std::string FileUtilsOpenHarmony::getWritablePath() const {
    std::string dir("");
    if (_ohWritablePath.length() > 0)
    {
        dir.append(_ohWritablePath).append("/");
    }
    return dir;
}

bool FileUtilsOpenHarmony::isFileExistInternal(const std::string &strFilePath) const {
    if (strFilePath.empty()) {
        return false;
    }
    std::string strPath = strFilePath;
    if (!isAbsolutePath(strPath)) { // Not absolute path, add the default root path at the beginning.
        strPath.insert(0, _defaultResRootPath);
    } else {
        FILE *fp = fopen(strFilePath.c_str(), "r");
        if (fp)
        {
            fclose(fp);
            return true;
        }
        return false;
    }

    if (nullptr == _nativeResourceManager) {
        cocos2d::log("[ERROR]ativeResourceManager is nullptr");
        return false;
    }

    RawFile* rawFile = OH_ResourceManager_OpenRawFile(_nativeResourceManager, strPath.c_str());
    if(rawFile) {
        OH_ResourceManager_CloseRawFile(rawFile);
        return true;
    }
    return false;
}

FileUtils::Status FileUtilsOpenHarmony::getRawFileDescriptor(const std::string &filename,RawFileDescriptor& descriptor) {
    if (filename.empty()) {
        return FileUtils::Status::NotExists;
    }

    std::string fullPath = fullPathForFilename(filename);
    if (fullPath.empty()) {
        return FileUtils::Status::NotExists;
    }

    if (nullptr == _nativeResourceManager) {
        cocos2d::log("[ERROR]ativeResourceManager is nullptr");
        return FileUtils::Status::NotInitialized;
    }

    RawFile *rawFile = OH_ResourceManager_OpenRawFile(_nativeResourceManager, fullPath.c_str());
    if (nullptr == rawFile) {
        return FileUtils::Status::OpenFailed;
    }

    bool result = OH_ResourceManager_GetRawFileDescriptor(rawFile, descriptor);
    if (!result) {
         OH_ResourceManager_CloseRawFile(rawFile);
        return FileUtils::Status::OpenFailed;
    }

    OH_ResourceManager_CloseRawFile(rawFile);
    return FileUtils::Status::OK;  
}

bool FileUtilsOpenHarmony::isDirectoryExistInternal(const std::string &dirPath) const {
    if (dirPath.empty()) return false;
    std::string dirPathMf = dirPath[dirPath.length() - 1] == '/' ? dirPath.substr(0, dirPath.length() - 1) : dirPath;

    if (dirPathMf[0] == '/') {
        struct stat st;
        return stat(dirPathMf.c_str(), &st) == 0 && S_ISDIR(st.st_mode);
    }

    if (dirPathMf.find(_defaultResRootPath) == 0) {
        dirPathMf = dirPathMf.substr(_defaultResRootPath.length(), dirPathMf.length());
    }
    
    if (nullptr == _nativeResourceManager) {
        cocos2d::log("[ERROR]ativeResourceManager is nullptr");
        return false;
    }

    RawDir* rawDir = OH_ResourceManager_OpenRawDir(_nativeResourceManager, dirPathMf.c_str());
    if(rawDir) {
        OH_ResourceManager_CloseRawDir(rawDir);
        return true;
    }
    return false;
}

} // namespace cc