/****************************************************************************
 Copyright (c) 2020-2023 Xiamen Yaji Software Co., Ltd.

 http://www.cocos.com

 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
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 THE SOFTWARE.
****************************************************************************/

#include "TextureValidator.h"
#include "DeviceValidator.h"
#include "SwapchainValidator.h"
#include "ValidationUtils.h"
#include "gfx-base/GFXDef-common.h"

namespace cc {
namespace gfx {

namespace {
struct EnumHasher final {
    template <typename T, typename Enable = std::enable_if_t<std::is_enum<T>::value>>
    size_t operator()(const T &v) const {
        return static_cast<size_t>(v);
    }
};

ccstd::unordered_map<Format, Feature, EnumHasher> featureCheckMap{};
} // namespace

TextureValidator::TextureValidator(Texture *actor)
: Agent<Texture>(actor) {
    _typedID = actor->getTypedID();
}

TextureValidator::~TextureValidator() {
    DeviceResourceTracker<Texture>::erase(this);
    if (_ownTheActor) CC_SAFE_DELETE(_actor);
}

void TextureValidator::doInit(const TextureInfo &info) {
    CC_ASSERT(!isInited());
    _inited = true;

    CC_ASSERT(info.width && info.height && info.depth);

    FormatFeature ff = FormatFeature::NONE;
    if (hasAnyFlags(info.usage, TextureUsageBit::COLOR_ATTACHMENT | TextureUsageBit::DEPTH_STENCIL_ATTACHMENT)) ff |= FormatFeature::RENDER_TARGET;
    if (hasAnyFlags(info.usage, TextureUsageBit::SAMPLED)) ff |= FormatFeature::SAMPLED_TEXTURE;
    if (hasAnyFlags(info.usage, TextureUsageBit::STORAGE)) ff |= FormatFeature::STORAGE_TEXTURE;
    if (ff != FormatFeature::NONE) {
        CC_ASSERT(hasAllFlags(DeviceValidator::getInstance()->getFormatFeatures(info.format), ff));
    }

    switch (info.type) {
        case TextureType::TEX2D: {
            if (std::max(info.width, info.height) > DeviceValidator::getInstance()->getCapabilities().maxTextureSize) {
                CC_ABORT();
            }
            break;
        }
        case TextureType::TEX1D_ARRAY: {
            if (std::min(info.width, info.height) > 1 || std::max(info.width, info.height) > DeviceValidator::getInstance()->getCapabilities().maxTextureSize || info.layerCount > DeviceValidator::getInstance()->getCapabilities().maxArrayTextureLayers) {
                CC_ABORT();
            }
            break;
        }
        case TextureType::TEX2D_ARRAY: {
            if (std::max(info.width, info.height) > DeviceValidator::getInstance()->getCapabilities().maxTextureSize || info.layerCount > DeviceValidator::getInstance()->getCapabilities().maxArrayTextureLayers) {
                CC_ABORT();
            }
            break;
        }
        case TextureType::CUBE: {
            if (std::max(info.width, info.height) > DeviceValidator::getInstance()->getCapabilities().maxCubeMapTextureSize || info.layerCount != 6) {
                CC_ABORT();
            }
            break;
        }
        case TextureType::TEX3D: {
            if (std::max(std::max(info.width, info.height), info.depth) > DeviceValidator::getInstance()->getCapabilities().maxCubeMapTextureSize) {
                CC_ABORT();
            }
            break;
        }
        default: {
            CC_ABORT();
            break;
        }
    }

    if (hasFlag(info.flags, TextureFlagBit::GEN_MIPMAP)) {
        CC_ASSERT(info.levelCount > 1);

        bool isCompressed = GFX_FORMAT_INFOS[static_cast<int>(info.format)].isCompressed;
        CC_ASSERT(!isCompressed);
    }

    /////////// execute ///////////

    _actor->initialize(info);
}

void TextureValidator::doInit(const TextureViewInfo &info) {
    CC_ASSERT(!isInited());
    _inited = true;
    _isTextureView = true;
    CC_ASSERT(info.texture && static_cast<TextureValidator *>(info.texture)->isInited());

    /////////// execute ///////////

    TextureViewInfo actorInfo = info;
    actorInfo.texture = static_cast<TextureValidator *>(info.texture)->getActor();

    _actor->initialize(actorInfo);
}

void TextureValidator::doInit(const SwapchainTextureInfo &info) {
    CC_ASSERT(!isInited());
    _inited = true;
    CC_UNUSED_PARAM(info); // workaround tidy issue
    CC_ASSERT(info.swapchain && static_cast<SwapchainValidator *>(info.swapchain)->isInited());

    // the actor is already initialized
}

void TextureValidator::doDestroy() {
    CC_ASSERT(isInited());
    _inited = false;

    /////////// execute ///////////

    _actor->destroy();
}

void TextureValidator::doResize(uint32_t width, uint32_t height, uint32_t /*size*/) {
    CC_ASSERT(isInited());

    // Cannot resize texture views.
    CC_ASSERT(!_isTextureView);

    /////////// execute ///////////

    _actor->resize(width, height);
}

void TextureValidator::sanityCheck() {
    CC_ASSERT(isInited());

    uint64_t cur = DeviceValidator::getInstance()->currentFrame();

    // FIXME: minggo: as current implementation need to update some textures more than once, so disable it.
    // Should enable it when it is fixed.
    // if (cur == _lastUpdateFrame) {
    //     CC_LOG_WARNING(utils::getStacktraceJS().c_str());
    //     CC_LOG_WARNING("performance warning: texture updated more than once per frame");
    // }

    _lastUpdateFrame = cur;
}

} // namespace gfx
} // namespace cc