// Copyright 2020 The Dawn Authors
//
// 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 "dawn_native/CreatePipelineAsyncTask.h"

#include "dawn_native/ComputePipeline.h"
#include "dawn_native/Device.h"
#include "dawn_native/RenderPipeline.h"

namespace dawn_native {

    CreatePipelineAsyncCallbackTaskBase::CreatePipelineAsyncCallbackTaskBase(
        std::string errorMessage,
        void* userdata)
        : mErrorMessage(errorMessage), mUserData(userdata) {
    }

    CreateComputePipelineAsyncCallbackTask::CreateComputePipelineAsyncCallbackTask(
        Ref<ComputePipelineBase> pipeline,
        std::string errorMessage,
        WGPUCreateComputePipelineAsyncCallback callback,
        void* userdata)
        : CreatePipelineAsyncCallbackTaskBase(errorMessage, userdata),
          mPipeline(std::move(pipeline)),
          mCreateComputePipelineAsyncCallback(callback) {
    }

    void CreateComputePipelineAsyncCallbackTask::Finish() {
        ASSERT(mCreateComputePipelineAsyncCallback != nullptr);

        if (mPipeline.Get() != nullptr) {
            mCreateComputePipelineAsyncCallback(
                WGPUCreatePipelineAsyncStatus_Success,
                reinterpret_cast<WGPUComputePipeline>(mPipeline.Detach()), "", mUserData);
        } else {
            mCreateComputePipelineAsyncCallback(WGPUCreatePipelineAsyncStatus_Error, nullptr,
                                                mErrorMessage.c_str(), mUserData);
        }
    }

    void CreateComputePipelineAsyncCallbackTask::HandleShutDown() {
        ASSERT(mCreateComputePipelineAsyncCallback != nullptr);

        mCreateComputePipelineAsyncCallback(WGPUCreatePipelineAsyncStatus_DeviceDestroyed, nullptr,
                                            "Device destroyed before callback", mUserData);
    }

    void CreateComputePipelineAsyncCallbackTask::HandleDeviceLoss() {
        ASSERT(mCreateComputePipelineAsyncCallback != nullptr);

        mCreateComputePipelineAsyncCallback(WGPUCreatePipelineAsyncStatus_DeviceLost, nullptr,
                                            "Device lost before callback", mUserData);
    }

    CreateRenderPipelineAsyncCallbackTask::CreateRenderPipelineAsyncCallbackTask(
        Ref<RenderPipelineBase> pipeline,
        std::string errorMessage,
        WGPUCreateRenderPipelineAsyncCallback callback,
        void* userdata)
        : CreatePipelineAsyncCallbackTaskBase(errorMessage, userdata),
          mPipeline(std::move(pipeline)),
          mCreateRenderPipelineAsyncCallback(callback) {
    }

    void CreateRenderPipelineAsyncCallbackTask::Finish() {
        ASSERT(mCreateRenderPipelineAsyncCallback != nullptr);

        if (mPipeline.Get() != nullptr) {
            mCreateRenderPipelineAsyncCallback(
                WGPUCreatePipelineAsyncStatus_Success,
                reinterpret_cast<WGPURenderPipeline>(mPipeline.Detach()), "", mUserData);
        } else {
            mCreateRenderPipelineAsyncCallback(WGPUCreatePipelineAsyncStatus_Error, nullptr,
                                               mErrorMessage.c_str(), mUserData);
        }
    }

    void CreateRenderPipelineAsyncCallbackTask::HandleShutDown() {
        ASSERT(mCreateRenderPipelineAsyncCallback != nullptr);

        mCreateRenderPipelineAsyncCallback(WGPUCreatePipelineAsyncStatus_DeviceDestroyed, nullptr,
                                           "Device destroyed before callback", mUserData);
    }

    void CreateRenderPipelineAsyncCallbackTask::HandleDeviceLoss() {
        ASSERT(mCreateRenderPipelineAsyncCallback != nullptr);

        mCreateRenderPipelineAsyncCallback(WGPUCreatePipelineAsyncStatus_DeviceLost, nullptr,
                                           "Device lost before callback", mUserData);
    }

}  // namespace dawn_native