StorageManager.h

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#pragma once
 
#include <string>
#include <vector>
#include <functional>
#include <cstdint>
#include <nlohmann/json.hpp>
#include "storage/StorageFileReader.h"
 
struct FileInfo
{
    std::string name; 
    bool isDirectory; 
    bool isReadOnly;  
    size_t size;      
};
 
inline void to_json(nlohmann::json &j, const FileInfo &f) {
    j = nlohmann::json{
        {"name", f.name},
        {"size", f.size},
        {"isDir", f.isDirectory}
    };
}
 
class StorageManager
{
public:
    virtual ~StorageManager() = default;
 
    virtual bool mount() = 0;
 
    virtual bool unmount() = 0;
 
    virtual bool isMounted() const = 0;
 
    virtual bool exists(const std::string &path) = 0;
 
    virtual bool remove(const std::string &path) = 0;
 
    virtual bool rename(const std::string &from, const std::string &to) = 0;
 
    virtual bool readFile(const std::string &path, std::vector<uint8_t> &buffer) = 0;
 
    virtual bool readFileString(const std::string &path, uint32_t startPosition, uint32_t length, std::string &buffer) = 0;
 
    virtual bool writeFile(const std::string &path, const std::vector<uint8_t> &data) = 0;
    virtual bool writeFile(const std::string& path, const unsigned char* data, size_t size) = 0;
 
 
    virtual bool streamFile(const std::string &path, std::function<void(const uint8_t *, size_t)> chunkCallback) = 0;
 
    virtual bool listDirectory(const std::string &path, std::vector<FileInfo> &out) = 0;
 
    virtual bool createDirectory(const std::string &path) = 0;
 
    virtual bool removeDirectory(const std::string &path) = 0;
 
    virtual size_t getFileSize(const std::string &path) = 0;
 
    virtual bool appendToFile(const std::string &path, const uint8_t *data, size_t size) = 0;
 
    virtual bool formatStorage() = 0;
 
    virtual std::unique_ptr<StorageFileReader> openReader(const std::string& path) = 0;
};