/*
** binding-sandbox.cpp
**
** This file is part of mkxp.
**
** Copyright (C) 2013 - 2021 Amaryllis Kulla <ancurio@mapleshrine.eu>
**
** mkxp is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** mkxp is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with mkxp.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "binding-sandbox.h"
#include "mkxp-polyfill.h" // std::strtol
#include <string>
#include <libretro.h>
#include <zlib.h>
#include "sharedstate.h"
#include "core.h"
#include "encoding.h"
#include "audio-binding.h"
#include "bitmap-binding.h"
#include "etc-binding.h"
#include "font-binding.h"
#include "graphics-binding.h"
#include "input-binding.h"
#include "plane-binding.h"
#include "sprite-binding.h"
#include "table-binding.h"
#include "tilemap-binding.h"
#include "tilemapvx-binding.h"
#include "viewport-binding.h"
#include "window-binding.h"
#include "windowvx-binding.h"

using namespace mkxp_sandbox;

extern const char module_rpg1[];
extern const char module_rpg2[];
extern const char module_rpg3[];

static VALUE utf8_encoding;

struct eval_script : boost::asio::coroutine {
    typedef decl_slots<ID> slots;

    void operator()(VALUE string, VALUE filename) {
        BOOST_ASIO_CORO_REENTER (this) {
            SANDBOX_AWAIT_S(0, rb_intern, "eval");
            SANDBOX_AWAIT(rb_funcall, SANDBOX_NIL, SANDBOX_SLOT(0), 3, string, SANDBOX_NIL, filename);
        }
    }
};

static VALUE load_data(int32_t argc, wasm_ptr_t argv, VALUE self) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t, VALUE, VALUE, ID> slots;

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                // TODO: require at least one argument
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &sb()->ref<VALUE>(argv, 0));
                SANDBOX_AWAIT_S(1, rb_file_open, sb()->str(SANDBOX_SLOT(0)), "rb");
                if (argc < 2 || !SANDBOX_VALUE_TO_BOOL(sb()->ref<VALUE>(argv, 1))) {
                    SANDBOX_AWAIT_S(2, rb_marshal_load, SANDBOX_SLOT(1));
                } else {
                    SANDBOX_AWAIT_S(3, rb_intern, "read");
                    SANDBOX_AWAIT_S(2, rb_funcall, SANDBOX_SLOT(1), SANDBOX_SLOT(3), 0);
                }
                SANDBOX_AWAIT(rb_io_close, SANDBOX_SLOT(1));
            }

            return SANDBOX_SLOT(2);
        }
    };

    return sb()->bind<struct coro>()()(argc, argv, self);
}

static VALUE save_data(VALUE self, VALUE obj, VALUE filename) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t, VALUE> slots;

        VALUE operator()(VALUE self, VALUE obj, VALUE filename) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &filename);
                SANDBOX_AWAIT_S(1, rb_file_open, sb()->str(SANDBOX_SLOT(0)), "wb");
                SANDBOX_AWAIT(rb_marshal_dump, obj, SANDBOX_SLOT(1));
                SANDBOX_AWAIT(rb_io_close, SANDBOX_SLOT(1));
            }

            return SANDBOX_NIL;
        }
    };

    return sb()->bind<struct coro>()()(self, obj, filename);
}

static VALUE rgss_main(VALUE self) {
    struct coro : boost::asio::coroutine {
        static VALUE func(VALUE block) {
            struct coro : boost::asio::coroutine {
                typedef decl_slots<ID> slots;

                VALUE operator()(VALUE block) {
                    BOOST_ASIO_CORO_REENTER (this) {
                        SANDBOX_AWAIT_S(0, rb_intern, "call");
                        SANDBOX_AWAIT(rb_funcall, block, SANDBOX_SLOT(0), 0);
                    }

                    return SANDBOX_UNDEF;
                }
            };

            return sb()->bind<struct coro>()()(block);
        }

        static VALUE rescue(VALUE arg, VALUE exception) {
            return exception;
        }

        typedef decl_slots<VALUE, VALUE> slots;

        VALUE operator()(VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                while (true) {
                    SANDBOX_AWAIT_S(0, rb_block_proc);
                    SANDBOX_AWAIT_S(1, rb_rescue2, func, SANDBOX_SLOT(0), rescue, SANDBOX_NIL, sb()->rb_eException(), 0);

                    if (SANDBOX_SLOT(1) == SANDBOX_UNDEF) {
                        return SANDBOX_NIL;
                    }

                    SANDBOX_AWAIT_S(0, rb_gv_get, "$!");
                    SANDBOX_AWAIT_S(0, rb_obj_class, SANDBOX_SLOT(0));
                    if (SANDBOX_SLOT(0) == reset_class) {
                        SANDBOX_AWAIT(audio_reset);
                        SANDBOX_AWAIT(graphics_reset);
                    } else {
                        SANDBOX_AWAIT(rb_exc_raise, SANDBOX_SLOT(1));
                    }
                }
            }

            return SANDBOX_NIL;
        }
    };

    return sb()->bind<struct coro>()()(self);
}

static VALUE rgss_stop(VALUE self) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<VALUE> slots;

        VALUE operator()(VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                while (true) {
                    SANDBOX_GUARD_L(SANDBOX_SLOT(0) = shState->graphics().update(sb().e));
                    if (SANDBOX_SLOT(0)) {
                        SANDBOX_YIELD;
                    }
                }
            }

            return SANDBOX_NIL;
        }
    };

    return sb()->bind<struct coro>()()(self);
}

static VALUE delta(VALUE self) {
    return sb()->bind<struct rb_float_new>()()(shState->runTime());
}

static VALUE data_directory(VALUE self) {
    return sb()->bind<struct rb_str_new_cstr>()()("/Save");
}

static VALUE get_window_title(VALUE self) {
    return sb()->bind<struct rb_str_new_cstr>()()("");
}

static VALUE set_window_title(VALUE self, VALUE value) {
    return value;
}

static VALUE show_settings(VALUE self) {
    return SANDBOX_NIL;
}

static VALUE desensitize(VALUE self, VALUE value) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t, VALUE> slots;

        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &value);
                SANDBOX_AWAIT_S(1, rb_str_new_cstr, mkxp_retro::fs->desensitize(sb()->str(SANDBOX_SLOT(0))));
            }

            return SANDBOX_SLOT(1);
        }
    };

    return sb()->bind<struct coro>()()(self, value);
}

static VALUE platform(VALUE self) {
    return sb()->bind<struct rb_str_new_cstr>()()("libretro");
}

static VALUE is_not_libretro(VALUE self) {
    return SANDBOX_FALSE;
}

static VALUE is_libretro(VALUE self) {
    return SANDBOX_TRUE;
}

static VALUE user_language(VALUE self) {
    const char *str;

    enum retro_language language;
    if (!mkxp_retro::environment(RETRO_ENVIRONMENT_GET_LANGUAGE, &language)) {
        language = RETRO_LANGUAGE_ENGLISH;
    }
    switch (language) {
        default: case RETRO_LANGUAGE_ENGLISH: str = "en_US"; break;
        case RETRO_LANGUAGE_JAPANESE: str = "ja_JP"; break;
        case RETRO_LANGUAGE_FRENCH: str = "fr_FR"; break;
        case RETRO_LANGUAGE_SPANISH: str = "es_ES"; break;
        case RETRO_LANGUAGE_GERMAN: str = "de_DE"; break;
        case RETRO_LANGUAGE_ITALIAN: str = "it_IT"; break;
        case RETRO_LANGUAGE_DUTCH: str = "nl_NL"; break;
        case RETRO_LANGUAGE_PORTUGUESE_BRAZIL: str = "pt_BR"; break;
        case RETRO_LANGUAGE_PORTUGUESE_PORTUGAL: str = "pt_PT"; break;
        case RETRO_LANGUAGE_RUSSIAN: str = "ru_RU"; break;
        case RETRO_LANGUAGE_KOREAN: str = "ko_KR"; break;
        case RETRO_LANGUAGE_CHINESE_TRADITIONAL: str = "zh_TW"; break;
        case RETRO_LANGUAGE_CHINESE_SIMPLIFIED: str = "zh_CN"; break;
        case RETRO_LANGUAGE_ESPERANTO: str = "eo"; break;
        case RETRO_LANGUAGE_POLISH: str = "pl_PL"; break;
        case RETRO_LANGUAGE_VIETNAMESE: str = "vi_VN"; break;
        case RETRO_LANGUAGE_ARABIC: str = "ar_SA"; break;
        case RETRO_LANGUAGE_GREEK: str = "el_GR"; break;
        case RETRO_LANGUAGE_TURKISH: str = "tr_TR"; break;
        case RETRO_LANGUAGE_SLOVAK: str = "sk_SK"; break;
        case RETRO_LANGUAGE_PERSIAN: str = "fa_IR"; break;
        case RETRO_LANGUAGE_HEBREW: str = "he_IL"; break;
        case RETRO_LANGUAGE_ASTURIAN: str = "ast_ES"; break;
        case RETRO_LANGUAGE_FINNISH: str = "fi_FI"; break;
        case RETRO_LANGUAGE_INDONESIAN: str = "id_ID"; break;
        case RETRO_LANGUAGE_SWEDISH: str = "sv_SE"; break;
        case RETRO_LANGUAGE_UKRAINIAN: str = "uk_UA"; break;
        case RETRO_LANGUAGE_CZECH: str = "cs_CZ"; break;
        case RETRO_LANGUAGE_CATALAN_VALENCIA: str = "ca_ES"; break;
        case RETRO_LANGUAGE_CATALAN: str = "ca_AD"; break;
        case RETRO_LANGUAGE_BRITISH_ENGLISH: str = "en_GB"; break;
        case RETRO_LANGUAGE_HUNGARIAN: str = "hu_HU"; break;
        case RETRO_LANGUAGE_BELARUSIAN: str = "be_BY"; break;
        case RETRO_LANGUAGE_GALICIAN: str = "gl_ES"; break;
        case RETRO_LANGUAGE_NORWEGIAN: str = "no_NO"; break;
        case RETRO_LANGUAGE_IRISH: str = "ga_IE"; break;
    }

    return sb()->bind<struct rb_str_new_cstr>()()(str);
}

static VALUE user_name(VALUE self) {
    const char *str;

    if (!mkxp_retro::environment(RETRO_ENVIRONMENT_GET_USERNAME, &str) || str == nullptr) {
        str = "";
    }

    return sb()->bind<struct rb_str_new_cstr>()()(str);
}

static VALUE game_title(VALUE self) {
    return sb()->bind<struct rb_str_new_cstr>()()(shState->config().game.title.c_str());
}

static VALUE power_state(VALUE self) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<VALUE, VALUE, VALUE, ID> slots;

        VALUE operator()(VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (!mkxp_retro::environment(RETRO_ENVIRONMENT_GET_DEVICE_POWER, &sb().device_power)) {
                    sb().device_power.state = RETRO_POWERSTATE_UNKNOWN;
                    sb().device_power.seconds = RETRO_POWERSTATE_NO_ESTIMATE;
                    sb().device_power.percent = RETRO_POWERSTATE_NO_ESTIMATE;
                }

                SANDBOX_AWAIT_S(0, rb_hash_new);

                SANDBOX_AWAIT_S(3, rb_intern, "seconds");
                SANDBOX_AWAIT_S(1, rb_id2sym, SANDBOX_SLOT(3));
                if (sb().device_power.seconds != RETRO_POWERSTATE_NO_ESTIMATE) {
                    SANDBOX_AWAIT_S(2, rb_ll2inum, sb().device_power.seconds);
                } else {
                    SANDBOX_SLOT(2) = SANDBOX_NIL;
                }
                SANDBOX_AWAIT(rb_hash_aset, SANDBOX_SLOT(0), SANDBOX_SLOT(1), SANDBOX_SLOT(2));

                SANDBOX_AWAIT_S(3, rb_intern, "percent");
                SANDBOX_AWAIT_S(1, rb_id2sym, SANDBOX_SLOT(3));
                if (sb().device_power.percent != RETRO_POWERSTATE_NO_ESTIMATE) {
                    SANDBOX_AWAIT_S(2, rb_ll2inum, sb().device_power.percent);
                } else {
                    SANDBOX_SLOT(2) = SANDBOX_NIL;
                }
                SANDBOX_AWAIT(rb_hash_aset, SANDBOX_SLOT(0), SANDBOX_SLOT(1), SANDBOX_SLOT(2));

                SANDBOX_AWAIT_S(3, rb_intern, "discharging");
                SANDBOX_AWAIT_S(1, rb_id2sym, SANDBOX_SLOT(3));
                if (sb().device_power.state != RETRO_POWERSTATE_UNKNOWN) {
                    SANDBOX_SLOT(2) = SANDBOX_BOOL_TO_VALUE(sb().device_power.state == RETRO_POWERSTATE_DISCHARGING);
                } else {
                    SANDBOX_SLOT(2) = SANDBOX_NIL;
                }
                SANDBOX_AWAIT(rb_hash_aset, SANDBOX_SLOT(0), SANDBOX_SLOT(1), SANDBOX_SLOT(2));
            }

            return SANDBOX_SLOT(0);
        }
    };

    return sb()->bind<struct coro>()()(self);
}

static VALUE nproc(VALUE self) {
    return sb()->bind<struct rb_num2int>()()(1);
}

static VALUE memory(VALUE self) {
    return sb()->bind<struct rb_num2int>()()(0);
}

static VALUE reload_cache(VALUE self) {
    mkxp_retro::fs->reloadPathCache();
    return SANDBOX_NIL;
}

static VALUE mount(int32_t argc, wasm_ptr_t argv, VALUE self) {
    sb()->bind<struct exception_raise>()()(Exception(Exception::PHYSFSError, "Failed to mount (operation not supported in libretro builds)"));
    return SANDBOX_NIL;
}

static VALUE unmount(int32_t argc, wasm_ptr_t argv, VALUE self) {
    sb()->bind<struct exception_raise>()()(Exception(Exception::PHYSFSError, "Failed to unmount (operation not supported in libretro builds)"));
    return SANDBOX_NIL;
}

static VALUE file_exists(VALUE self, VALUE value) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t> slots;

        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &value);
                return SANDBOX_BOOL_TO_VALUE(mkxp_retro::fs->exists(sb()->str(SANDBOX_SLOT(0))));
            }

            return SANDBOX_NIL;
        }
    };

    return sb()->bind<struct coro>()()(self, value);
}

static VALUE launch(VALUE self, VALUE cmdname, VALUE args) {
    sb()->bind<struct exception_raise>()()(Exception(Exception::MKXPError, "Failed to launch (operation not supported in libretro builds)"));
    return SANDBOX_NIL;
}

static VALUE default_font_family(VALUE self, VALUE value) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t> slots;

        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &value);
                shState->fontState().setDefaultFontFamily(std::string(sb()->str(SANDBOX_SLOT(0))));
            }

            return SANDBOX_NIL;
        }
    };

    return sb()->bind<struct coro>()()(self, value);
}

static VALUE to_utf8(VALUE self) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t, VALUE> slots;

        VALUE operator()(VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &self);
                SANDBOX_AWAIT_S(1, rb_str_new_cstr, Encoding::convertString((const char *)sb()->str(SANDBOX_SLOT(0))).c_str());
            }

            return SANDBOX_SLOT(1);
        }
    };

    return sb()->bind<struct coro>()()(self);
}

static VALUE to_utf8_bang(VALUE self) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t, ID> slots;

        VALUE operator()(VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &self);
                sb().convert_string_buffer = Encoding::convertString((const char *)sb()->str(SANDBOX_SLOT(0)));
                SANDBOX_AWAIT(rb_str_resize, self, sb().convert_string_buffer.length());
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &self);
                sb()->strcpy(SANDBOX_SLOT(0), sb().convert_string_buffer.c_str());
                SANDBOX_AWAIT_S(1, rb_intern, "force_encoding");
                SANDBOX_AWAIT(rb_funcall, self, SANDBOX_SLOT(1), 1, utf8_encoding);
            }

            return self;
        }

        void end() noexcept {
            sb().convert_string_buffer.clear();
        }
    };

    return sb()->bind<struct coro>()()(self);
}

void sandbox_binding_init::operator()() {
    static VALUE system_module;
    static VALUE cfg_module;

    struct register_ruby_revision : boost::asio::coroutine {
        typedef decl_slots<wasm_ptr_t, VALUE, ID> slots;

        void operator()() {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(2, rb_intern, "RUBY_REVISION");
                SANDBOX_AWAIT_S(1, rb_const_get, sb()->rb_cObject(), SANDBOX_SLOT(2));
                SANDBOX_AWAIT_S(0, rb_string_value_cstr, &SANDBOX_SLOT(1));

                struct sandbox_str_guard str = sb()->str(SANDBOX_SLOT(0));
                if (std::strlen(str) != 2 * sizeof mkxp_retro::ruby_revision) {
                    std::abort();
                }
                for (size_t i = 0; i < sizeof mkxp_retro::ruby_revision; ++i) {
                    mkxp_retro::ruby_revision[i] = std::strtol(std::string(str + 2 * i, 2).c_str(), nullptr, 16);
                }
            }
        }
    };

    struct register_utf8_encoding : boost::asio::coroutine {
        typedef decl_slots<ID> slots;

        void operator()() {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_intern, "UTF_8");
                SANDBOX_AWAIT_R(utf8_encoding, rb_const_get, sb()->rb_cEncoding(), SANDBOX_SLOT(0));
            }
        }
    };

    BOOST_ASIO_CORO_REENTER (this) {
        SANDBOX_AWAIT(register_ruby_revision);
        SANDBOX_AWAIT(register_utf8_encoding);
        SANDBOX_AWAIT(exception_binding_init);

        SANDBOX_AWAIT(table_binding_init);
        SANDBOX_AWAIT(etc_binding_init);
        SANDBOX_AWAIT(font_binding_init);
        SANDBOX_AWAIT(bitmap_binding_init);
        SANDBOX_AWAIT(sprite_binding_init);
        SANDBOX_AWAIT(viewport_binding_init);
        SANDBOX_AWAIT(plane_binding_init);

        if (rgssVer == 1) {
            SANDBOX_AWAIT(window_binding_init);
            SANDBOX_AWAIT(tilemap_binding_init);
        } else {
            SANDBOX_AWAIT(windowvx_binding_init);
            SANDBOX_AWAIT(tilemapvx_binding_init);
        }

        SANDBOX_AWAIT(input_binding_init);
        SANDBOX_AWAIT(audio_binding_init);
        SANDBOX_AWAIT(graphics_binding_init);

        SANDBOX_AWAIT(rb_define_module_function, sb()->rb_mKernel(), "load_data", (VALUE (*)(ANYARGS))load_data, -1);
        SANDBOX_AWAIT(rb_define_module_function, sb()->rb_mKernel(), "save_data", (VALUE (*)(ANYARGS))save_data, 2);

        if (rgssVer >= 3) {
            SANDBOX_AWAIT(rb_define_module_function, sb()->rb_mKernel(), "rgss_main", (VALUE (*)(ANYARGS))rgss_main, 0);
            SANDBOX_AWAIT(rb_define_module_function, sb()->rb_mKernel(), "rgss_stop", (VALUE (*)(ANYARGS))rgss_stop, 0);
        }

        if (rgssVer == 1) {
            SANDBOX_AWAIT(rb_eval_string, module_rpg1);
        } else if (rgssVer == 2) {
            SANDBOX_AWAIT(rb_eval_string, module_rpg2);
        } else if (rgssVer == 3) {
            SANDBOX_AWAIT(rb_eval_string, module_rpg3);
        } else {
            std::abort();
        }

        SANDBOX_AWAIT_R(system_module, rb_define_module, "System");

        SANDBOX_AWAIT(rb_define_module_function, system_module, "delta", (VALUE (*)(ANYARGS))delta, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "uptime", (VALUE (*)(ANYARGS))delta, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "data_directory", (VALUE (*)(ANYARGS))data_directory, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "set_window_title", (VALUE (*)(ANYARGS))set_window_title, 1);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "window_title", (VALUE (*)(ANYARGS))get_window_title, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "window_title=", (VALUE (*)(ANYARGS))set_window_title, 1);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "show_settings", (VALUE (*)(ANYARGS))show_settings, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "desensitize", (VALUE (*)(ANYARGS))desensitize, 1);

        SANDBOX_AWAIT(rb_define_module_function, system_module, "platform", (VALUE (*)(ANYARGS))platform, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_mac?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_rosetta?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_linux?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_windows?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_wine?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_really_mac?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_really_linux?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_really_windows?", (VALUE (*)(ANYARGS))is_not_libretro, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "is_libretro?", (VALUE (*)(ANYARGS))is_libretro, 0);

        SANDBOX_AWAIT(rb_define_module_function, system_module, "user_language", (VALUE (*)(ANYARGS))user_language, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "user_name", (VALUE (*)(ANYARGS))user_name, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "game_title", (VALUE (*)(ANYARGS))game_title, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "power_state", (VALUE (*)(ANYARGS))power_state, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "nproc", (VALUE (*)(ANYARGS))nproc, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "memory", (VALUE (*)(ANYARGS))memory, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "reload_cache", (VALUE (*)(ANYARGS))reload_cache, 0);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "mount", (VALUE (*)(ANYARGS))mount, -1);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "unmount", (VALUE (*)(ANYARGS))unmount, -1);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "file_exists?", (VALUE (*)(ANYARGS))file_exists, 1);
        SANDBOX_AWAIT(rb_define_module_function, system_module, "launch", (VALUE (*)(ANYARGS))launch, 2);

        SANDBOX_AWAIT(rb_define_module_function, system_module, "default_font_family=", (VALUE (*)(ANYARGS))default_font_family, 1);

        SANDBOX_AWAIT(rb_define_method, sb()->rb_cString(), "to_utf8", (VALUE (*)(ANYARGS))to_utf8, 0);
        SANDBOX_AWAIT(rb_define_method, sb()->rb_cString(), "to_utf8!", (VALUE (*)(ANYARGS))to_utf8_bang, 0);

        SANDBOX_AWAIT_R(cfg_module, rb_define_module, "CFG");

        // TODO
        //SANDBOX_AWAIT(rb_define_module_function, cfg_module, "[]", (VALUE (*)(ANYARGS))get_json_setting, 1);
        //SANDBOX_AWAIT(rb_define_module_function, cfg_module, "[]=", (VALUE (*)(ANYARGS))set_json_setting, 2);
        //SANDBOX_AWAIT(rb_define_module_function, cfg_module, "to_hash", (VALUE (*)(ANYARGS))get_all_json_settings, 0);
    }
}

void sandbox_run_rmxp_scripts::operator()() {
    BOOST_ASIO_CORO_REENTER (this) {
        // Unmarshal the script array into slot 1
        if (rgssVer == 1) {
            SANDBOX_AWAIT_S(0, rb_file_open, "Data/Scripts.rxdata", "rb");
        } else if (rgssVer == 2) {
            SANDBOX_AWAIT_S(0, rb_file_open, "Data/Scripts.rvdata", "rb");
        } else if (rgssVer == 3) {
            SANDBOX_AWAIT_S(0, rb_file_open, "Data/Scripts.rvdata2", "rb");
        } else {
            std::abort();
        }
        SANDBOX_AWAIT_S(1, rb_marshal_load, SANDBOX_SLOT(0));
        SANDBOX_AWAIT(rb_io_close, SANDBOX_SLOT(0));

        // Assign it to the "$RGSS_SCRIPTS" global variable
        SANDBOX_AWAIT(rb_gv_set, "$RGSS_SCRIPTS", SANDBOX_SLOT(1));

        // Get the number of scripts into slot 2
        SANDBOX_AWAIT_S(2, get_length, SANDBOX_SLOT(1));

        sb().script_decode_buffer.resize(0x1000);

        for (SANDBOX_SLOT(3) = 0; SANDBOX_SLOT(3) < SANDBOX_SLOT(2); ++SANDBOX_SLOT(3)) {
            // Get the script into slot 4
            SANDBOX_AWAIT_S(4, rb_ary_entry, SANDBOX_SLOT(1), SANDBOX_SLOT(3));
            // Skip this script object if it's not an array
            SANDBOX_AWAIT_S(0, rb_obj_is_kind_of, SANDBOX_SLOT(4), sb()->rb_cArray());
            if (!SANDBOX_VALUE_TO_BOOL(SANDBOX_SLOT(0))) {
                continue;
            }

            // Get the name of the script, the zlib-compressed script contents of the script and the length of said contents into slots 5, 6 and 7, respectively
            SANDBOX_AWAIT_S(0, rb_ary_entry, SANDBOX_SLOT(4), 1);
            SANDBOX_AWAIT_S(5, rb_string_value_cstr, &SANDBOX_SLOT(0));
            SANDBOX_AWAIT_S(0, rb_ary_entry, SANDBOX_SLOT(4), 2);
            SANDBOX_AWAIT_S(6, rb_string_value_ptr, &SANDBOX_SLOT(0));
            SANDBOX_AWAIT_S(7, get_bytesize, SANDBOX_SLOT(0));

            // Decompress the script contents
            {
                int zlib_result = Z_OK;
                unsigned long buffer_len = sb().script_decode_buffer.size() - 1;
                while (true) {
                    zlib_result = uncompress(
                        sb().script_decode_buffer.data(),
                        &buffer_len,
                        (const unsigned char *)(const char *)sb()->str(SANDBOX_SLOT(6)),
                        SANDBOX_SLOT(7)
                    );
                    sb().script_decode_buffer[buffer_len] = 0;

                    if (zlib_result != Z_BUF_ERROR) {
                        break;
                    }

                    if (2UL * (unsigned long)sb().script_decode_buffer.size() <= (unsigned long)sb().script_decode_buffer.size()) {
                        MKXPZ_THROW(std::bad_alloc());
                    }
                    sb().script_decode_buffer.resize(2 * sb().script_decode_buffer.size());
                    buffer_len = sb().script_decode_buffer.size() - 1;
                }

                if (zlib_result != Z_OK) {
                    mkxp_retro::log_printf(RETRO_LOG_ERROR, "Error decoding script %zu: '%s'\n", SANDBOX_SLOT(3), (const char *)sb()->str(SANDBOX_SLOT(5)));
                    break;
                }
            }

            SANDBOX_AWAIT_S(0, rb_utf8_str_new_cstr, (const char *)sb().script_decode_buffer.data());
            SANDBOX_AWAIT(rb_ary_store, SANDBOX_SLOT(4), 3, SANDBOX_SLOT(0));
        }

        sb().script_decode_buffer.clear();

        // TODO: preload scripts

        while (true) {
            for (SANDBOX_SLOT(3) = 0; SANDBOX_SLOT(3) < SANDBOX_SLOT(2); ++SANDBOX_SLOT(3)) {
                // Get the script into slot 4
                SANDBOX_AWAIT_S(4, rb_ary_entry, SANDBOX_SLOT(1), SANDBOX_SLOT(3));
                // Skip this script object if it's not an array
                SANDBOX_AWAIT_S(0, rb_obj_is_kind_of, SANDBOX_SLOT(4), sb()->rb_cArray());
                if (!SANDBOX_VALUE_TO_BOOL(SANDBOX_SLOT(0))) {
                    continue;
                }

                SANDBOX_AWAIT_S(9, rb_ary_entry, SANDBOX_SLOT(4), 3);
                SANDBOX_AWAIT_S(10, rb_ary_entry, SANDBOX_SLOT(4), 1);
                SANDBOX_AWAIT(eval_script, SANDBOX_SLOT(9), SANDBOX_SLOT(10));
            }

            // Stop unless a reset was requested
            SANDBOX_AWAIT_S(0, rb_gv_get, "$!");
            SANDBOX_AWAIT_S(0, rb_obj_class, SANDBOX_SLOT(0));
            if (SANDBOX_SLOT(0) != reset_class) {
                break;
            }

            SANDBOX_AWAIT(audio_reset);
            SANDBOX_AWAIT(graphics_reset);
        }
    }
}

void sandbox_run_rmxp_scripts::end() noexcept {
    sb().script_decode_buffer.clear();
}