filesystem.h

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#pragma once
 
#include <parcel/cell.h>
#include <parcel/defaults.h>
#include <parcel/descriptor.h>
#include <parcel/json.h>
 
#include <filesystem>
#include <memory>
#include <string>
#include <string_view>
 
namespace parcel {
 
class PathCell : public BaseCell<PathCell, std::filesystem::path> {
    using base_t = BaseCell<PathCell, std::filesystem::path>;
 
public:
    using base_t::base_t;
    using base_t::operator=;
 
    static constexpr std::string_view kind_id = "fs:path";
 
    [[nodiscard]] std::string to_string() const override {
        return this->value.generic_string();
    }
 
    [[nodiscard]] json_t to_json() const override {
        json_t j{
            {ICell::KEY_KIND, kind_id},
            {ICell::KEY_VALUE, this->value.generic_string()},
        };
        this->inject_display_info(j);
        return j;
    }
 
    static cell_t from_json(json_t const& j, ParcelRegistry const&) {
        const auto s = base_t::cell_from_json<std::string>(j, kind_id);
        auto cell = std::make_shared<PathCell>(std::filesystem::path{s});
        base_t::absorb_display_info(j, cell);
        return cell;
    }
 
    static cell_type_descriptor_t descriptor() {
        static const auto d = std::make_shared<SimpleCellTypeDescriptor<PathCell>>(
            DisplayInfo{.name = "Path", .description = "Filesystem path (UTF-8 generic form)"});
        return d;
    }
};
 
}  // namespace parcel
 
PARCEL_DEFAULT_CELL(parcel::PathCell);