/*
 * Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved.

 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:

 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <cstdarg>
#include "tvgScene.h"

/************************************************************************/
/* Internal Class Implementation                                        */
/************************************************************************/

Result Scene::Impl::resetEffects()
{
    if (effects) {
        for (auto e = effects->begin(); e < effects->end(); ++e) {
            delete(*e);
        }
        delete(effects);
        effects = nullptr;
    }
    return Result::Success;
}


/************************************************************************/
/* External Class Implementation                                        */
/************************************************************************/

Scene::Scene() : pImpl(new Impl(this))
{
}


Scene::~Scene()
{
    delete(pImpl);
}


Scene* Scene::gen() noexcept
{
    return new Scene;
}


Type Scene::type() const noexcept
{
    return Type::Scene;
}


Result Scene::push(Paint* paint) noexcept
{
    if (!paint) return Result::MemoryCorruption;
    PP(paint)->ref();
    pImpl->paints.push_back(paint);

    return Result::Success;
}


Result Scene::clear(bool free) noexcept
{
    pImpl->clear(free);

    return Result::Success;
}


list<Paint*>& Scene::paints() noexcept
{
    return pImpl->paints;
}


Result Scene::push(SceneEffect effect, ...) noexcept
{
    if (effect == SceneEffect::ClearAll) return pImpl->resetEffects();

    if (!pImpl->effects) pImpl->effects = new Array<RenderEffect*>;

    va_list args;
    va_start(args, effect);

    RenderEffect* re = nullptr;

    switch (effect) {
        case SceneEffect::GaussianBlur: {
            re = RenderEffectGaussianBlur::gen(args);
            break;
        }
        case SceneEffect::DropShadow: {
            re = RenderEffectDropShadow::gen(args);
            break;
        }
        default: break;
    }

    if (!re) return Result::InvalidArguments;

    pImpl->effects->push(re);

    return Result::Success;
}