SimBox.cpp

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// -------------------------------------------------------//
//
// SHAMROCK code for hydrodynamics
// Copyright (c) 2021-2026 Timothée David--Cléris <tim.shamrock@proton.me>
// SPDX-License-Identifier: CeCILL Free Software License Agreement v2.1
// Shamrock is licensed under the CeCILL 2.1 License, see LICENSE for more information
//
// -------------------------------------------------------//

 
#include "shamrock/patch/SimBox.hpp"
#include "shambackends/type_convert.hpp"
#include <nlohmann/json.hpp>

template<class... Ts>
struct overloaded : Ts... {
    using Ts::operator()...;
};

template<class... Ts>
overloaded(Ts...) -> overloaded<Ts...>;
 
namespace shamrock::patch {
 
    void SimulationBoxInfo::to_json(nlohmann::json &j) {
        auto &pcoord           = patch_coord_bounding_box;
        auto &bounding_box_var = bounding_box;
 
        j["patchcoormin"] = pcoord.coord_min;
        j["patchcoormax"] = pcoord.coord_max;
 
        std::visit(
            overloaded{
                [&](auto arg) {
                    shambase::throw_unimplemented();
                },
                [&](shammath::CoordRange<f32_3> arg) {
                    j["coordtype"] = "f32_3";
                    j["box_min"]   = sham::sycl_vec_to_array(arg.lower);
                    j["box_max"]   = sham::sycl_vec_to_array(arg.upper);
                },
                [&](shammath::CoordRange<f64_3> arg) {
                    j["coordtype"] = "f64_3";
                    j["box_min"]   = sham::sycl_vec_to_array(arg.lower);
                    j["box_max"]   = sham::sycl_vec_to_array(arg.upper);
                },
                [&](shammath::CoordRange<u32_3> arg) {
                    j["coordtype"] = "u32_3";
                    j["box_min"]   = sham::sycl_vec_to_array(arg.lower);
                    j["box_max"]   = sham::sycl_vec_to_array(arg.upper);
                },
                [&](shammath::CoordRange<u64_3> arg) {
                    j["coordtype"] = "u64_3";
                    j["box_min"]   = sham::sycl_vec_to_array(arg.lower);
                    j["box_max"]   = sham::sycl_vec_to_array(arg.upper);
                },
                [&](shammath::CoordRange<i64_3> arg) {
                    j["coordtype"] = "i64_3";
                    j["box_min"]   = sham::sycl_vec_to_array(arg.lower);
                    j["box_max"]   = sham::sycl_vec_to_array(arg.upper);
                }},
            bounding_box_var.value);
    }
 
    void SimulationBoxInfo::from_json(const nlohmann::json &j) {
        PatchCoord<3> pcoord;
        j.at("patchcoormin").get_to(pcoord.coord_min);
        j.at("patchcoormax").get_to(pcoord.coord_max);
        patch_coord_bounding_box = pcoord;
 
        // logger::raw_ln(
        //     pdl.check_main_field_type<f64_3>(),
        //     j.at("coordtype").get<std::string>(),
        //     j.at("coordtype").get<std::string>() == "f64_3");
        if (pdl.check_main_field_type<f32_3>()
            && (j.at("coordtype").get<std::string>() == "f32_3")) {
            bounding_box.value = shammath::CoordRange<f32_3>{
                sham::array_to_sycl_vec(j.at("box_min").get<std::array<f32, 3>>()),
                sham::array_to_sycl_vec(j.at("box_max").get<std::array<f32, 3>>()),
            };
        } else if (
            pdl.check_main_field_type<f64_3>()
            && (j.at("coordtype").get<std::string>() == "f64_3")) {
            bounding_box.value = shammath::CoordRange<f64_3>{
                sham::array_to_sycl_vec(j.at("box_min").get<std::array<f64, 3>>()),
                sham::array_to_sycl_vec(j.at("box_max").get<std::array<f64, 3>>()),
            };
        } else if (
            pdl.check_main_field_type<u32_3>()
            && (j.at("coordtype").get<std::string>() == "u32_3")) {
            bounding_box.value = shammath::CoordRange<u32_3>{
                sham::array_to_sycl_vec(j.at("box_min").get<std::array<u32, 3>>()),
                sham::array_to_sycl_vec(j.at("box_max").get<std::array<u32, 3>>()),
            };
        } else if (
            pdl.check_main_field_type<u64_3>()
            && (j.at("coordtype").get<std::string>() == "u64_3")) {
            bounding_box.value = shammath::CoordRange<u64_3>{
                sham::array_to_sycl_vec(j.at("box_min").get<std::array<u64, 3>>()),
                sham::array_to_sycl_vec(j.at("box_max").get<std::array<u64, 3>>()),
            };
        } else if (
            pdl.check_main_field_type<i64_3>()
            && (j.at("coordtype").get<std::string>() == "i64_3")) {
            bounding_box.value = shammath::CoordRange<i64_3>{
                sham::array_to_sycl_vec(j.at("box_min").get<std::array<i64, 3>>()),
                sham::array_to_sycl_vec(j.at("box_max").get<std::array<i64, 3>>()),
            };
        } else {
            throw shambase::make_except_with_loc<std::runtime_error>("unable to parse json type");
        }
    }
 
} // namespace shamrock::patch