preprocess_state.hpp

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#pragma once
 
#include <filesystem>
#include <string>
#include <nlohmann/json.hpp>
 
namespace fs = std::filesystem;
 
using json = nlohmann::json;
 
struct PreprocessRunParams {
    fs::path path;             
    std::string finished_time; 
    std::string version;       
    std::uintmax_t size;       
};
 
inline void to_json(json& j, const PreprocessRunParams& d) {
    j = {
        {"path", d.path.string()},
        {"finished_time", d.finished_time},
        {"version", d.version},
        {"size", d.size},
    };
}
 
inline void from_json(const json& j, PreprocessRunParams& d) {
    d.path = j.value("path", "");
    d.finished_time = j.value("finished_time", "");
    d.version = j.value("version","");
    d.size = j.value("size", 0);
}
 
class Preprocess_State {
protected:
    static constexpr const char* CONFIG_PATH = "config.json"; 
 
public:
    static void save_current_run_params(const fs::path& path, const fs::path& cache_path);
 
    static PreprocessRunParams read_current_run_params();
 
    static bool is_cache_compatible(const std::string& cache_version);
};