/*
 * Copyright (c) 2020 Samsung Electronics Co., Ltd All Rights Reserved
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *               http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

#include <thorvg.h>
#include "thorvg_capi.h"

using namespace std;
using namespace tvg;

#ifdef __cplusplus
extern "C" {
#endif

struct _Tvg_Canvas
{
    //Dummy for Direct Casting
};

struct _Tvg_Paint
{
    //Dummy for Direct Casting
};


/************************************************************************/
/* Engine API                                                           */
/************************************************************************/

TVG_EXPORT Tvg_Result tvg_engine_init(unsigned engine_method) {
    Result ret = Result::Success;

    if (engine_method & TVG_ENGINE_SW) ret = tvg::Initializer::init(tvg::CanvasEngine::Sw);
    if (ret != Result::Success) return (Tvg_Result) ret;

    if (engine_method & TVG_ENGINE_GL) ret = tvg::Initializer::init(tvg::CanvasEngine::Gl);
    return (Tvg_Result) ret;
}


TVG_EXPORT Tvg_Result tvg_engine_term(unsigned engine_method) {
    Result ret = Result::Success;

    if (engine_method & TVG_ENGINE_SW) ret = tvg::Initializer::init(tvg::CanvasEngine::Sw);
    if (ret != Result::Success) return (Tvg_Result) ret;

    if (engine_method & TVG_ENGINE_GL) ret = tvg::Initializer::init(tvg::CanvasEngine::Gl);
    return (Tvg_Result) ret;
}

/************************************************************************/
/* Canvas API                                                           */
/************************************************************************/

TVG_EXPORT Tvg_Canvas* tvg_swcanvas_create()
{
    return (Tvg_Canvas*) SwCanvas::gen().release();
}


TVG_EXPORT Tvg_Result tvg_canvas_destroy(Tvg_Canvas* canvas)
{
    delete(canvas);
    return TVG_RESULT_SUCCESS;
}


TVG_EXPORT Tvg_Result tvg_swcanvas_set_target(Tvg_Canvas* canvas, uint32_t* buffer, uint32_t stride, uint32_t w, uint32_t h)
{
    return (Tvg_Result) reinterpret_cast<SwCanvas*>(canvas)->target(buffer, stride, w, h);
}


TVG_EXPORT Tvg_Result tvg_canvas_push(Tvg_Canvas* canvas, Tvg_Paint* paint)
{
    return (Tvg_Result) reinterpret_cast<Canvas*>(canvas)->push(unique_ptr<Paint>((Paint*)paint));
}


TVG_EXPORT Tvg_Result tvg_canvas_reserve(Tvg_Canvas* canvas, uint32_t n)
{
    return (Tvg_Result) reinterpret_cast<Canvas*>(canvas)->reserve(n);
}


TVG_EXPORT Tvg_Result tvg_canvas_clear(Tvg_Canvas* canvas)
{
    return (Tvg_Result) reinterpret_cast<Canvas*>(canvas)->clear();
}


TVG_EXPORT Tvg_Result tvg_canvas_update(Tvg_Canvas* canvas)
{
     return (Tvg_Result) reinterpret_cast<Canvas*>(canvas)->update();
}


TVG_EXPORT Tvg_Result tvg_canvas_update_paint(Tvg_Canvas* canvas, Tvg_Paint* paint)
{
    return (Tvg_Result) reinterpret_cast<Canvas*>(canvas)->update((Paint*) paint);
}


TVG_EXPORT Tvg_Result tvg_canvas_draw(Tvg_Canvas* canvas, unsigned char async)
{
    return (Tvg_Result) reinterpret_cast<Canvas*>(canvas)->draw(async);
}


TVG_EXPORT Tvg_Result tvg_canvas_sync(Tvg_Canvas* canvas)
{
    return (Tvg_Result) reinterpret_cast<Canvas*>(canvas)->sync();
}


/************************************************************************/
/* Shape API                                                            */
/************************************************************************/

TVG_EXPORT Tvg_Paint* tvg_shape_new()
{
    return (Tvg_Paint*) Shape::gen().release();
}


TVG_EXPORT Tvg_Result tvg_shape_del(Tvg_Paint* paint)
{
    delete(paint);
    return TVG_RESULT_SUCCESS;
}


TVG_EXPORT Tvg_Result tvg_shape_reset(Tvg_Paint* paint)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->reset();
}


TVG_EXPORT Tvg_Result tvg_shape_move_to(Tvg_Paint* paint, float x, float y)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->moveTo(x, y);
}


TVG_EXPORT Tvg_Result tvg_shape_line_to(Tvg_Paint* paint, float x, float y)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->lineTo(x, y);
}


TVG_EXPORT Tvg_Result tvg_shape_cubic_to(Tvg_Paint* paint, float cx1, float cy1, float cx2, float cy2, float x, float y)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->cubicTo(cx1, cy1, cx2, cy2, x, y);
}


TVG_EXPORT Tvg_Result tvg_shape_close(Tvg_Paint* paint)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->close();
}


TVG_EXPORT Tvg_Result tvg_shape_append_rect(Tvg_Paint* paint, float x, float y, float w, float h, float rx, float ry)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->appendRect(x, y, w, h, rx, ry);
}


TVG_EXPORT Tvg_Result tvg_shape_append_circle(Tvg_Paint* paint, float cx, float cy, float rx, float ry)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->appendCircle(cx, cy, rx, ry);
}


TVG_EXPORT Tvg_Result tvg_shape_append_path(Tvg_Paint* paint, const Tvg_Path_Command* cmds, uint32_t cmdCnt, const Tvg_Point* pts, uint32_t ptsCnt)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->appendPath((PathCommand*)cmds, cmdCnt, (Point*)pts, ptsCnt);
}


TVG_EXPORT Tvg_Result tvg_shape_set_stroke_width(Tvg_Paint* paint, float width)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->stroke(width);
}


TVG_EXPORT Tvg_Result tvg_shape_set_stroke_color(Tvg_Paint* paint, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->stroke(r, g, b, a);
}


TVG_EXPORT Tvg_Result tvg_shape_set_stroke_dash(Tvg_Paint* paint, const float* dashPattern, uint32_t cnt)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->stroke(dashPattern, cnt);
}


TVG_EXPORT Tvg_Result tvg_shape_set_stroke_cap(Tvg_Paint* paint, Tvg_Stroke_Cap cap)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->stroke((StrokeCap)cap);
}


TVG_EXPORT Tvg_Result tvg_shape_set_stroke_join(Tvg_Paint* paint, Tvg_Stroke_Join join)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->stroke((StrokeJoin)join);
}


TVG_EXPORT Tvg_Result tvg_shape_fill_color(Tvg_Paint* paint, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->fill(r, g, b, a);
}

TVG_EXPORT Tvg_Result tvg_shape_scale(Tvg_Paint* paint, float factor)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->scale(factor);
}

TVG_EXPORT Tvg_Result tvg_shape_rotate(Tvg_Paint* paint, float degree)
{
    return (Tvg_Result) reinterpret_cast<Shape*>(paint)->rotate(degree);
}

#ifdef __cplusplus
}
#endif