/*
** bitmap-binding.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 "bitmap-binding.h"
#include "disposable-binding.h"
#include "etc-binding.h"
#include "font-binding.h"
#include "bitmap.h"

using namespace mkxp_sandbox;

VALUE mkxp_sandbox::bitmap_class;
static struct bindings::rb_data_type bitmap_type;

SANDBOX_DEF_ALLOC(bitmap_type);

void bitmap_init_props::operator()(VALUE self) {
    BOOST_ASIO_CORO_REENTER (this) {
        SANDBOX_AWAIT_S(0, rb_class_new_instance, 0, nullptr, font_class);
        SANDBOX_AWAIT(rb_iv_set, self, "font", SANDBOX_SLOT(0));

        // Leave property as default nil if hasHires() is false.
        if (get_private_data<Bitmap>(self)->hasHires()) {
            get_private_data<Bitmap>(self)->assumeRubyGC();
            SANDBOX_AWAIT_S(1, wrap_property, self, get_private_data<Bitmap>(self)->getHires(), "hires", bitmap_class);

            SANDBOX_AWAIT_S(2, rb_class_new_instance, 0, nullptr, font_class);
            SANDBOX_AWAIT(rb_iv_set, SANDBOX_SLOT(1), "font", SANDBOX_SLOT(2));
            get_private_data<Bitmap>(self)->getHires()->setInitFont(get_private_data<Font>(SANDBOX_SLOT(2)));
        }

        get_private_data<Bitmap>(self)->setInitFont(get_private_data<Font>(SANDBOX_SLOT(0)));
    }
}

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (argc == 1) {
                    SANDBOX_AWAIT_S(0, rb_string_value_cstr, &sb()->ref<VALUE>(argv, 0));
                } else {
                    SANDBOX_AWAIT_S(1, rb_num2ulong, sb()->ref<VALUE>(argv, 0));
                    SANDBOX_AWAIT_S(2, rb_num2ulong, sb()->ref<VALUE>(argv, 1));
                }

                {
                    Bitmap *bitmap;
                    if (argc == 1) {
                        GFX_GUARD_EXC(bitmap = new Bitmap(sb()->str(SANDBOX_SLOT(0)));)
                    } else {
                        GFX_GUARD_EXC(bitmap = new Bitmap(SANDBOX_SLOT(1), SANDBOX_SLOT(2));)
                    }
                    set_private_data(self, bitmap);
                }

                SANDBOX_AWAIT(bitmap_init_props, self);
            }

            return SANDBOX_NIL;
        }
    };

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

static VALUE initialize_copy(VALUE self, VALUE value) {
    struct coro : boost::asio::coroutine {
        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (self == value) {
                    return self;
                }

                SANDBOX_AWAIT(rb_obj_init_copy, self, value);

                {
                    Bitmap *bitmap;
                    GFX_GUARD_EXC(bitmap = new Bitmap(*get_private_data<Bitmap>(value)););
                    set_private_data(self, bitmap);
                }

                SANDBOX_AWAIT(bitmap_init_props, self);
                get_private_data<Bitmap>(self)->setFont(get_private_data<Bitmap>(value)->getFont());
            }

            return self;
        }
    };

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

static VALUE width(VALUE self) {
    return sb()->bind<struct rb_ull2inum>()()(get_private_data<Bitmap>(self)->width());
}

static VALUE height(VALUE self) {
    return sb()->bind<struct rb_ull2inum>()()(get_private_data<Bitmap>(self)->height());
}

SANDBOX_DEF_GFX_PROP_OBJ_REF(Bitmap, Bitmap, Hires, hires);

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

        VALUE operator()(VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_obj_alloc, rect_class);
                set_private_data(SANDBOX_SLOT(0), new Rect(get_private_data<Bitmap>(self)->rect()));
            }

            return SANDBOX_SLOT(0);
        }
    };

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

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                // TODO: require at least 4 arguments
                SANDBOX_AWAIT_S(2, rb_num2int, sb()->ref<VALUE>(argv, 0));
                SANDBOX_AWAIT_S(3, rb_num2int, sb()->ref<VALUE>(argv, 1));
                SANDBOX_SLOT(0) = sb()->ref<VALUE>(argv, 2);
                SANDBOX_SLOT(1) = sb()->ref<VALUE>(argv, 3);
                if (argc > 4) {
                    SANDBOX_AWAIT_S(4, rb_num2int, sb()->ref<VALUE>(argv, 4));
                }

                Bitmap *src = get_private_data<Bitmap>(SANDBOX_SLOT(0));
                if (src != nullptr) {
                    Rect *srcRect = get_private_data<Rect>(SANDBOX_SLOT(1));
                    if (argc > 4) {
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->blt(SANDBOX_SLOT(2), SANDBOX_SLOT(3), *src, srcRect->toIntRect(), SANDBOX_SLOT(4)););
                    } else {
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->blt(SANDBOX_SLOT(2), SANDBOX_SLOT(3), *src, srcRect->toIntRect()););
                    }
                }
            }

            return self;
        }
    };

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

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_SLOT(0) = sb()->ref<VALUE>(argv, 0);
                SANDBOX_SLOT(1) = sb()->ref<VALUE>(argv, 1);
                SANDBOX_SLOT(2) = sb()->ref<VALUE>(argv, 2);
                if (argc > 3) {
                    SANDBOX_AWAIT_S(3, rb_num2int, sb()->ref<VALUE>(argv, 3));
                }

                Bitmap *src = get_private_data<Bitmap>(SANDBOX_SLOT(1));
                if (src != nullptr) {
                    Rect *destRect = get_private_data<Rect>(SANDBOX_SLOT(0));
                    Rect *srcRect = get_private_data<Rect>(SANDBOX_SLOT(2));
                    if (argc > 4) {
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->stretchBlt(destRect->toIntRect(), *src, srcRect->toIntRect(), SANDBOX_SLOT(3)););
                    } else {
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->stretchBlt(destRect->toIntRect(), *src, srcRect->toIntRect()););
                    }
                }
            }

            return self;
        }
    };

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

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (argc == 2) {
                    Bitmap *bitmap = get_private_data<Bitmap>(self);
                    GFX_GUARD_EXC(bitmap->fillRect(get_private_data<Rect>(sb()->ref<VALUE>(argv, 0))->toIntRect(), get_private_data<Color>(sb()->ref<VALUE>(argv, 1))->norm);)
                } else {
                    SANDBOX_AWAIT_S(0, rb_num2int, sb()->ref<VALUE>(argv, 0));
                    SANDBOX_AWAIT_S(1, rb_num2int, sb()->ref<VALUE>(argv, 1));
                    SANDBOX_AWAIT_S(2, rb_num2int, sb()->ref<VALUE>(argv, 2));
                    SANDBOX_AWAIT_S(3, rb_num2int, sb()->ref<VALUE>(argv, 3));
                    Bitmap *bitmap = get_private_data<Bitmap>(self);
                    GFX_GUARD_EXC(bitmap->fillRect(SANDBOX_SLOT(0), SANDBOX_SLOT(1), SANDBOX_SLOT(2), SANDBOX_SLOT(3), get_private_data<Color>(sb()->ref<VALUE>(argv, 4))->norm);)
                }
            }

            return SANDBOX_NIL;
        }
    };

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

static VALUE clear(VALUE self) {
    GFX_GUARD_EXC(get_private_data<Bitmap>(self)->clear());
    return SANDBOX_NIL;
}

static VALUE get_pixel(VALUE self, VALUE x, VALUE y) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<VALUE, int32_t, int32_t> slots;

        VALUE operator()(VALUE self, VALUE x, VALUE y) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(1, rb_num2int, x);
                SANDBOX_AWAIT_S(2, rb_num2int, y);

                SANDBOX_AWAIT_S(0, rb_obj_alloc, color_class);

                {
                    Color value;
                    Color *color;
                    Bitmap *bitmap = get_private_data<Bitmap>(self);
                    if (bitmap->surface() != nullptr || bitmap->megaSurface() != nullptr) {
                        value = bitmap->getPixel(SANDBOX_SLOT(1), SANDBOX_SLOT(2));
                    } else {
                        GFX_GUARD_EXC(value = bitmap->getPixel(SANDBOX_SLOT(1), SANDBOX_SLOT(2)););
                    }
                    color = new Color(value);
                    set_private_data(SANDBOX_SLOT(0), color);
                }
            }

            return SANDBOX_SLOT(0);
        }
    };

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

static VALUE set_pixel(VALUE self, VALUE x, VALUE y, VALUE colorObj) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<int32_t, int32_t> slots;

        VALUE operator()(VALUE self, VALUE x, VALUE y, VALUE colorObj) {
            BOOST_ASIO_CORO_REENTER (this) {

                SANDBOX_AWAIT_S(0, rb_num2int, x);
                SANDBOX_AWAIT_S(1, rb_num2int, y);

                {
                    Color *color = get_private_data<Color>(colorObj);
                    Bitmap *bitmap = get_private_data<Bitmap>(self);
                    GFX_GUARD_EXC(bitmap->setPixel(SANDBOX_SLOT(0), SANDBOX_SLOT(1), *color););
                }
            }

            return self;
        }
    };

    return sb()->bind<struct coro>()()(self, x, y, colorObj);
}

static VALUE hue_change(VALUE self, VALUE hueval) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<int32_t> slots;

        VALUE operator()(VALUE self, VALUE hueval) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_num2int, hueval);

                {
                    Bitmap *bitmap = get_private_data<Bitmap>(self);
                    GFX_GUARD_EXC(bitmap->hueChange(SANDBOX_SLOT(0)););
                }
            }

            return self;
        }
    };

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

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (argc == 2 || argc == 3) {
                    if (rgssVer >= 2) {
                        SANDBOX_AWAIT_S(1, rb_obj_as_string, sb()->ref<VALUE>(argv, 1));
                        SANDBOX_AWAIT_S(0, rb_string_value_cstr, &SANDBOX_SLOT(1));
                    } else {
                        SANDBOX_AWAIT_S(0, rb_string_value_cstr, &sb()->ref<VALUE>(argv, 1));
                    }
                    if (argc == 2) {
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->drawText(get_private_data<Rect>(sb()->ref<VALUE>(argv, 0))->toIntRect(), sb()->str(SANDBOX_SLOT(0))););
                    } else {
                        SANDBOX_AWAIT_S(2, rb_num2int, sb()->ref<VALUE>(argv, 2));
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->drawText(get_private_data<Rect>(sb()->ref<VALUE>(argv, 0))->toIntRect(), sb()->str(SANDBOX_SLOT(0)), SANDBOX_SLOT(2)););
                    }
                } else {
                    SANDBOX_AWAIT_S(3, rb_num2int, sb()->ref<VALUE>(argv, 0));
                    SANDBOX_AWAIT_S(4, rb_num2int, sb()->ref<VALUE>(argv, 1));
                    SANDBOX_AWAIT_S(5, rb_num2int, sb()->ref<VALUE>(argv, 2));
                    SANDBOX_AWAIT_S(6, rb_num2int, sb()->ref<VALUE>(argv, 3));
                    if (rgssVer >= 2) {
                        SANDBOX_AWAIT_S(1, rb_obj_as_string, sb()->ref<VALUE>(argv, 4));
                        SANDBOX_AWAIT_S(0, rb_string_value_cstr, &SANDBOX_SLOT(1));
                    } else {
                        SANDBOX_AWAIT_S(0, rb_string_value_cstr, &sb()->ref<VALUE>(argv, 4));
                    }
                    if (argc < 6) {
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->drawText(SANDBOX_SLOT(3), SANDBOX_SLOT(4), SANDBOX_SLOT(5), SANDBOX_SLOT(6), sb()->str(SANDBOX_SLOT(0))););
                    } else {
                        SANDBOX_AWAIT_S(2, rb_num2int, sb()->ref<VALUE>(argv, 5));
                        GFX_GUARD_EXC(get_private_data<Bitmap>(self)->drawText(SANDBOX_SLOT(3), SANDBOX_SLOT(4), SANDBOX_SLOT(5), SANDBOX_SLOT(6), sb()->str(SANDBOX_SLOT(0)), SANDBOX_SLOT(2)););
                    }
                }
            }

            return SANDBOX_NIL;
        }
    };

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

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

        VALUE operator()(VALUE self, VALUE text) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (rgssVer >= 2) {
                    SANDBOX_AWAIT_S(1, rb_obj_as_string, text);
                    SANDBOX_AWAIT_S(0, rb_string_value_cstr, &SANDBOX_SLOT(1));
                } else {
                    SANDBOX_AWAIT_S(0, rb_string_value_cstr, &text);
                }
                SANDBOX_AWAIT_S(1, rb_obj_alloc, rect_class);
                set_private_data(SANDBOX_SLOT(1), new Rect(get_private_data<Bitmap>(self)->textSize(sb()->str(SANDBOX_SLOT(0)))));
            }

            return SANDBOX_SLOT(1);
        }
    };

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

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

        VALUE operator()(VALUE self) {
            Bitmap *bitmap = get_private_data<Bitmap>(self);
            int size = bitmap->width() * bitmap->height() * 4;

            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(1, rb_str_new_cstr, "");
                SANDBOX_AWAIT(rb_str_resize, SANDBOX_SLOT(1), size);
                SANDBOX_AWAIT_S(0, rb_string_value_ptr, &SANDBOX_SLOT(1));
                GFX_GUARD_EXC(bitmap->getRaw(sb()->ptr(SANDBOX_SLOT(0)), size););
            }

            return SANDBOX_SLOT(1);
        }
    };

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

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

        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_string_value_ptr, &value);
                SANDBOX_AWAIT_S(1, get_bytesize, value);
                Bitmap *bitmap = get_private_data<Bitmap>(self);
                GFX_GUARD_EXC(bitmap->replaceRaw(sb()->ptr(SANDBOX_SLOT(0)), SANDBOX_SLOT(1)););
            }

            return self;
        }
    };

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

static VALUE to_file(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);
                Bitmap *bitmap = get_private_data<Bitmap>(self);
                GFX_GUARD_EXC(bitmap->saveToFile(sb()->str(SANDBOX_SLOT(0))););
            }

            return SANDBOX_NIL;
        }
    };

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

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                // TODO: require at least 1 argument
                if (argc < 1) {
                    SANDBOX_SLOT(1) = -1;
                } else {
                    SANDBOX_AWAIT_S(1, rb_num2int, sb()->ref<VALUE>(argv, 0));
                }

                SANDBOX_AWAIT_S(0, rb_obj_alloc, bitmap_class);

                {
                    Bitmap *bitmap;
                    GFX_GUARD_EXC(bitmap = new Bitmap(*get_private_data<Bitmap>(self), SANDBOX_SLOT(1)););
                    set_private_data(SANDBOX_SLOT(0), bitmap);
                }

                SANDBOX_AWAIT(bitmap_init_props, SANDBOX_SLOT(0));
            }

            return SANDBOX_SLOT(0);
        }
    };

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

static VALUE gradient_fill_rect(int32_t argc, wasm_ptr_t argv, VALUE self) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<int32_t, int32_t, int32_t, int32_t, uint8_t> slots;

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (argc == 3 || argc == 4) {
                    if (argc == 4) {
                        SANDBOX_SLOT(4) = SANDBOX_VALUE_TO_BOOL(sb()->ref<VALUE>(argv, 3));
                    } else {
                        SANDBOX_SLOT(4) = false;
                    }
                    GFX_GUARD_EXC(get_private_data<Bitmap>(self)->gradientFillRect(get_private_data<Rect>(sb()->ref<VALUE>(argv, 0))->toIntRect(), get_private_data<Color>(sb()->ref<VALUE>(argv, 1))->norm, get_private_data<Color>(sb()->ref<VALUE>(argv, 2))->norm, SANDBOX_SLOT(4)););
                } else {
                    SANDBOX_AWAIT_S(0, rb_num2int, sb()->ref<VALUE>(argv, 0));
                    SANDBOX_AWAIT_S(1, rb_num2int, sb()->ref<VALUE>(argv, 1));
                    SANDBOX_AWAIT_S(2, rb_num2int, sb()->ref<VALUE>(argv, 2));
                    SANDBOX_AWAIT_S(3, rb_num2int, sb()->ref<VALUE>(argv, 3));
                    if (argc >= 7) {
                        SANDBOX_SLOT(4) = SANDBOX_VALUE_TO_BOOL(sb()->ref<VALUE>(argv, 6));
                    } else {
                        SANDBOX_SLOT(4) = false;
                    }
                    GFX_GUARD_EXC(get_private_data<Bitmap>(self)->gradientFillRect(SANDBOX_SLOT(0), SANDBOX_SLOT(1), SANDBOX_SLOT(2), SANDBOX_SLOT(3), get_private_data<Color>(sb()->ref<VALUE>(argv, 4))->norm, get_private_data<Color>(sb()->ref<VALUE>(argv, 5))->norm, SANDBOX_SLOT(4)););
                }
            }

            return SANDBOX_NIL;
        }
    };

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

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (argc == 1) {
                    GFX_GUARD_EXC(get_private_data<Bitmap>(self)->clearRect(get_private_data<Rect>(sb()->ref<VALUE>(argv, 0))->toIntRect()););
                } else {
                    SANDBOX_AWAIT_S(0, rb_num2int, sb()->ref<VALUE>(argv, 0));
                    SANDBOX_AWAIT_S(1, rb_num2int, sb()->ref<VALUE>(argv, 1));
                    SANDBOX_AWAIT_S(2, rb_num2int, sb()->ref<VALUE>(argv, 2));
                    SANDBOX_AWAIT_S(3, rb_num2int, sb()->ref<VALUE>(argv, 3));
                    GFX_GUARD_EXC(get_private_data<Bitmap>(self)->clearRect(SANDBOX_SLOT(0), SANDBOX_SLOT(1), SANDBOX_SLOT(2), SANDBOX_SLOT(3)););
                }
            }

            return SANDBOX_NIL;
        }
    };

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

static VALUE blur(VALUE self) {
    get_private_data<Bitmap>(self)->blur();
    return SANDBOX_NIL;
}

static VALUE radial_blur(VALUE self, VALUE angle, VALUE divisions) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<int32_t, int32_t> slots;

        VALUE operator()(VALUE self, VALUE angle, VALUE divisions) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_num2int, angle);
                SANDBOX_AWAIT_S(1, rb_num2int, divisions);
                get_private_data<Bitmap>(self)->radialBlur(SANDBOX_SLOT(0), SANDBOX_SLOT(1));
            }

            return SANDBOX_NIL;
        }
    };

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

static VALUE mega(VALUE self) {
    Bitmap *bitmap = get_private_data<Bitmap>(self);
    bool ret;
    GFX_GUARD_EXC(ret = bitmap->isMega(););
    return SANDBOX_BOOL_TO_VALUE(ret);
}

static VALUE max_size(VALUE self) {
    return sb()->bind<struct rb_ll2inum>()()(Bitmap::maxSize());
}

static VALUE get_animated(VALUE self) {
    Bitmap *bitmap = get_private_data<Bitmap>(self);
    bool ret;
    GFX_GUARD_EXC(ret = bitmap->isAnimated(););
    return SANDBOX_BOOL_TO_VALUE(ret);
}

SANDBOX_DEF_GFX_PROP_B(Bitmap, Playing, playing);

static VALUE play(VALUE self) {
    Bitmap *bitmap = get_private_data<Bitmap>(self);
    GFX_GUARD_EXC(bitmap->play(););
    return SANDBOX_NIL;
}

static VALUE stop(VALUE self) {
    Bitmap *bitmap = get_private_data<Bitmap>(self);
    GFX_GUARD_EXC(bitmap->stop(););
    return SANDBOX_NIL;
}

static VALUE goto_and_play(VALUE self, VALUE value) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<int32_t> slots;

        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_num2int, value);
                Bitmap *bitmap = get_private_data<Bitmap>(self);
                GFX_GUARD_EXC(bitmap->gotoAndPlay(SANDBOX_SLOT(0)););
            }

            return SANDBOX_NIL;
        }
    };

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

static VALUE goto_and_stop(VALUE self, VALUE value) {
    struct coro : boost::asio::coroutine {
        typedef decl_slots<int32_t> slots;

        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                SANDBOX_AWAIT_S(0, rb_num2int, value);
                Bitmap *bitmap = get_private_data<Bitmap>(self);
                GFX_GUARD_EXC(bitmap->gotoAndStop(SANDBOX_SLOT(0)););
            }

            return SANDBOX_NIL;
        }
    };

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

static VALUE frame_count(VALUE self) {
    return sb()->bind<struct rb_ll2inum>()()(get_private_data<Bitmap>(self)->numFrames());
}

static VALUE current_frame(VALUE self) {
    return sb()->bind<struct rb_ll2inum>()()(get_private_data<Bitmap>(self)->currentFrameI());
}

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                // TODO: require at least 1 argument
                if (argc < 2) {
                    SANDBOX_SLOT(1) = -1;
                } else {
                    SANDBOX_AWAIT_S(1, rb_num2int, sb()->ref<VALUE>(argv, 1));
                    if (SANDBOX_SLOT(1) < 0) {
                        SANDBOX_SLOT(1) = 0;
                    }
                }
                if (argc >= 1) {
                    Bitmap *src = get_private_data<Bitmap>(sb()->ref<VALUE>(argv, 0));
                    Bitmap *b = get_private_data<Bitmap>(self);
                    GFX_GUARD_EXC(SANDBOX_SLOT(1) = b->addFrame(*src, SANDBOX_SLOT(1)););
                }
                SANDBOX_AWAIT_S(0, rb_ll2inum, SANDBOX_SLOT(1));
            }

            return SANDBOX_SLOT(0);
        }
    };

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

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

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (argc < 2) {
                    SANDBOX_SLOT(0) = -1;
                } else {
                    SANDBOX_AWAIT_S(0, rb_num2int, sb()->ref<VALUE>(argv, 0));
                    if (SANDBOX_SLOT(0) < 0) {
                        SANDBOX_SLOT(0) = 0;
                    }
                }
                Bitmap *b = get_private_data<Bitmap>(self);
                GFX_GUARD_EXC(b->removeFrame(SANDBOX_SLOT(0)););
            }

            return SANDBOX_NIL;
        }
    };

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

static VALUE next_frame(VALUE self) {
    Bitmap *b = get_private_data<Bitmap>(self);
    GFX_GUARD_EXC(b->nextFrame());
    return sb()->bind<struct rb_ll2inum>()()(b->currentFrameI());
}

static VALUE previous_frame(VALUE self) {
    Bitmap *b = get_private_data<Bitmap>(self);
    GFX_GUARD_EXC(b->previousFrame());
    return sb()->bind<struct rb_ll2inum>()()(b->currentFrameI());
}

SANDBOX_DEF_GFX_PROP_F(Bitmap, AnimationFPS, frame_rate);
SANDBOX_DEF_GFX_PROP_B(Bitmap, Looping, looping);

static VALUE get_font(VALUE self) {
    return sb()->bind<struct rb_iv_get>()()(self, "font");
}

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

        VALUE operator()(VALUE self, VALUE value) {
            BOOST_ASIO_CORO_REENTER (this) {
                Font *font;
                font = get_private_data<Font>(value);
                if (font != nullptr) {
                    GFX_GUARD_EXC(get_private_data<Bitmap>(self)->setFont(*font);)

                    SANDBOX_AWAIT_S(0, rb_iv_get, self, "font");
                    SANDBOX_AWAIT_S(1, rb_iv_get, value, "name");
                    SANDBOX_AWAIT(rb_iv_set, SANDBOX_SLOT(0), "name", SANDBOX_SLOT(1));
                    SANDBOX_AWAIT_S(1, rb_iv_get, value, "size");
                    SANDBOX_AWAIT(rb_iv_set, SANDBOX_SLOT(0), "size", SANDBOX_SLOT(1));
                    SANDBOX_AWAIT_S(1, rb_iv_get, value, "bold");
                    SANDBOX_AWAIT(rb_iv_set, SANDBOX_SLOT(0), "bold", SANDBOX_SLOT(1));
                    SANDBOX_AWAIT_S(1, rb_iv_get, value, "italic");
                    SANDBOX_AWAIT(rb_iv_set, SANDBOX_SLOT(0), "italic", SANDBOX_SLOT(1));

                    if (rgssVer >= 2) {
                        SANDBOX_AWAIT_S(1, rb_iv_get, value, "shadow");
                        SANDBOX_AWAIT(rb_iv_set, SANDBOX_SLOT(0), "shadow", SANDBOX_SLOT(1));
                    }

                    if (rgssVer >= 3) {
                        SANDBOX_AWAIT_S(1, rb_iv_get, value, "outline");
                        SANDBOX_AWAIT(rb_iv_set, SANDBOX_SLOT(0), "outline", SANDBOX_SLOT(1));
                    }
                }
            }

            return value;
        }
    };

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

void bitmap_binding_init::operator()() {
    BOOST_ASIO_CORO_REENTER (this) {
        bitmap_type = sb()->rb_data_type("Bitmap", nullptr, dfree<Bitmap>, nullptr, nullptr, 0, 0, 0);
        SANDBOX_AWAIT_R(bitmap_class, rb_define_class, "Bitmap", sb()->rb_cObject());
        SANDBOX_AWAIT(rb_define_alloc_func, bitmap_class, alloc);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "initialize", (VALUE (*)(ANYARGS))initialize, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "initialize_copy", (VALUE (*)(ANYARGS))initialize_copy, 1);
        SANDBOX_AWAIT(disposable_binding_init<Bitmap>, bitmap_class);

        SANDBOX_AWAIT(rb_define_method, bitmap_class, "width", (VALUE (*)(ANYARGS))width, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "height", (VALUE (*)(ANYARGS))height, 0);

        SANDBOX_INIT_PROP_BIND(bitmap_class, hires);

        SANDBOX_AWAIT(rb_define_method, bitmap_class, "rect", (VALUE (*)(ANYARGS))rect, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "blt", (VALUE (*)(ANYARGS))blt, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "stretch_blt", (VALUE (*)(ANYARGS))stretch_blt, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "fill_rect", (VALUE (*)(ANYARGS))fill_rect, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "clear", (VALUE (*)(ANYARGS))clear, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "get_pixel", (VALUE (*)(ANYARGS))get_pixel, 2);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "set_pixel", (VALUE (*)(ANYARGS))set_pixel, 3);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "hue_change", (VALUE (*)(ANYARGS))hue_change, 1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "draw_text", (VALUE (*)(ANYARGS))draw_text, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "text_size", (VALUE (*)(ANYARGS))text_size, 1);

        SANDBOX_INIT_PROP_BIND(bitmap_class, raw_data);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "to_file", (VALUE (*)(ANYARGS))to_file, 1);

        SANDBOX_AWAIT(rb_define_method, bitmap_class, "gradient_fill_rect", (VALUE (*)(ANYARGS))gradient_fill_rect, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "clear_rect", (VALUE (*)(ANYARGS))clear_rect, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "blur", (VALUE (*)(ANYARGS))blur, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "radial_blur", (VALUE (*)(ANYARGS))radial_blur, 2);

        SANDBOX_AWAIT(rb_define_method, bitmap_class, "mega?", (VALUE (*)(ANYARGS))mega, 0);
        SANDBOX_AWAIT(rb_define_singleton_method, bitmap_class, "max_size", (VALUE (*)(ANYARGS))max_size, 0);

        SANDBOX_AWAIT(rb_define_method, bitmap_class, "animated?", (VALUE (*)(ANYARGS))get_animated, 0);
        SANDBOX_INIT_PROP_BIND(bitmap_class, playing);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "play", (VALUE (*)(ANYARGS))play, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "stop", (VALUE (*)(ANYARGS))stop, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "goto_and_play", (VALUE (*)(ANYARGS))goto_and_play, 1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "goto_and_stop", (VALUE (*)(ANYARGS))goto_and_stop, 1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "frame_count", (VALUE (*)(ANYARGS))frame_count, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "current_frame", (VALUE (*)(ANYARGS))current_frame, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "add_frame", (VALUE (*)(ANYARGS))add_frame, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "remove_frame", (VALUE (*)(ANYARGS))remove_frame, -1);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "next_frame", (VALUE (*)(ANYARGS))next_frame, 0);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "previous_frame", (VALUE (*)(ANYARGS))previous_frame, 0);
        SANDBOX_INIT_PROP_BIND(bitmap_class, frame_rate);
        SANDBOX_INIT_PROP_BIND(bitmap_class, looping);
        SANDBOX_AWAIT(rb_define_method, bitmap_class, "snap_to_bitmap", (VALUE (*)(ANYARGS))snap_to_bitmap, -1);

        SANDBOX_INIT_PROP_BIND(bitmap_class, font);
    }
}