/*
** viewport-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 "viewport-binding.h"
#include "disposable-binding.h"
#include "etc-binding.h"
#include "flashable-binding.h"
#include "sceneelement-binding.h"
#include "viewport.h"

using namespace mkxp_sandbox;

VALUE mkxp_sandbox::viewport_class;
static struct bindings::rb_data_type viewport_type;

SANDBOX_DEF_ALLOC(viewport_type);

static VALUE initialize(int32_t argc, wasm_ptr_t argv, VALUE self) {
    struct coro : boost::asio::coroutine {
        Viewport *viewport;
        int32_t x;
        int32_t y;
        int32_t w;
        int32_t h;
        VALUE obj;

        VALUE operator()(int32_t argc, wasm_ptr_t argv, VALUE self) {
            BOOST_ASIO_CORO_REENTER (this) {
                if (argc == 0 && rgssVer >= 3) {
                    GFX_LOCK;
                    viewport = new Viewport;
                } else if (argc == 1) {
                    GFX_LOCK;
                    viewport = new Viewport(get_private_data<Rect>(((VALUE *)(**sb() + argv))[0]));
                } else {
                    SANDBOX_AWAIT_AND_SET(x, rb_num2int, ((VALUE *)(**sb() + argv))[0]);
                    SANDBOX_AWAIT_AND_SET(y, rb_num2int, ((VALUE *)(**sb() + argv))[1]);
                    SANDBOX_AWAIT_AND_SET(w, rb_num2int, ((VALUE *)(**sb() + argv))[2]);
                    SANDBOX_AWAIT_AND_SET(h, rb_num2int, ((VALUE *)(**sb() + argv))[3]);
                    GFX_LOCK;
                    viewport = new Viewport(x, y, w, h);
                }

                set_private_data(self, viewport);

                viewport->initDynAttribs();

                SANDBOX_AWAIT(wrap_property, self, &viewport->getRect(), "rect", rect_class);
                SANDBOX_AWAIT(wrap_property, self, &viewport->getColor(), "color", color_class);
                SANDBOX_AWAIT(wrap_property, self, &viewport->getTone(), "tone", tone_class);

                GFX_UNLOCK
            }

            return SANDBOX_NIL;
        }
    };

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

SANDBOX_DEF_GFX_PROP_OBJ_VAL(Viewport, Rect, Rect, rect);
SANDBOX_DEF_GFX_PROP_OBJ_VAL(Viewport, Color, Color, color);
SANDBOX_DEF_GFX_PROP_OBJ_VAL(Viewport, Tone, Tone, tone);
SANDBOX_DEF_GFX_PROP_I(Viewport, OX, ox);
SANDBOX_DEF_GFX_PROP_I(Viewport, OY, oy);

void viewport_binding_init::operator()() {
    BOOST_ASIO_CORO_REENTER (this) {
        viewport_type = sb()->rb_data_type("Viewport", NULL, dfree<Viewport>, NULL, NULL, 0, 0, 0);
        SANDBOX_AWAIT_AND_SET(viewport_class, rb_define_class, "Viewport", sb()->rb_cObject());
        SANDBOX_AWAIT(rb_define_alloc_func, viewport_class, alloc);
        SANDBOX_AWAIT(rb_define_method, viewport_class, "initialize", (VALUE (*)(ANYARGS))initialize, -1);
        SANDBOX_AWAIT(disposable_binding_init<Viewport>, viewport_class);
        SANDBOX_AWAIT(flashable_binding_init<Viewport>, viewport_class);
        SANDBOX_AWAIT(sceneelement_binding_init<Viewport>, viewport_class);
        SANDBOX_INIT_PROP_BIND(viewport_class, rect);
        SANDBOX_INIT_PROP_BIND(viewport_class, color);
        SANDBOX_INIT_PROP_BIND(viewport_class, tone);
        SANDBOX_INIT_PROP_BIND(viewport_class, ox);
        SANDBOX_INIT_PROP_BIND(viewport_class, oy);
    }
}