//
// Created by selim on 27.11.22.
//

#ifndef UNFLUTTER_SNAPSHOT_H
#define UNFLUTTER_SNAPSHOT_H

#include "Leb128Int.h"

#include <cstddef>
#include <cstdint>
#include <string>
#include <vector>

namespace Dart {

    class Snapshot {
    public:
        enum class Kind: uint64_t {
            FULL, FULL_JIT, FULL_AOT, MESSAGE, NONE, INVALID
        };

        static const uint32_t MAGIC = 0xDCDCF5F5;

    private:
        uint32_t _magic;
        uint64_t _size;
        Kind _kind;
        std::string _versionHash;
        std::vector<std::string> _features;
        Leb128Int _baseObjectsCount;
        Leb128Int _allObjectsCount;
        Leb128Int _clustersCount;
        Leb128Int _fieldTableLength;

    private:
        static std::vector<std::string> split(const std::string &str);

    public:
        explicit Snapshot(const std::byte* data);
        [[nodiscard]] uint64_t size() const;
        [[nodiscard]] std::string kindString() const;
        [[nodiscard]] std::string versionHash() const;
        [[nodiscard]] std::string featuresString() const;
        [[nodiscard]] uint64_t baseObjectsCount() const;
        [[nodiscard]] uint64_t allObjectsCount() const;
        [[nodiscard]] uint64_t clustersCount() const;
        [[nodiscard]] uint64_t fieldTableLength() const;
    };

}

#endif //UNFLUTTER_SNAPSHOT_H