// Copyright 2025 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NATIVE_WEBGPU_DEVICEWGPU_H_
#define SRC_DAWN_NATIVE_WEBGPU_DEVICEWGPU_H_

#include <memory>
#include <vector>

#include "dawn/native/Device.h"
#include "dawn/native/ToBackend.h"
#include "dawn/native/webgpu/Forward.h"
#include "partition_alloc/pointers/raw_ptr.h"

namespace dawn::native::webgpu {

class Device final : public DeviceBase {
  public:
    static ResultOrError<Ref<Device>> Create(AdapterBase* adapter,
                                             WGPUAdapter innerAdapter,
                                             const UnpackedPtr<DeviceDescriptor>& descriptor,
                                             const TogglesState& deviceToggles,
                                             Ref<DeviceBase::DeviceLostEvent>&& lostEvent);
    ~Device() override;

    MaybeError Initialize(const UnpackedPtr<DeviceDescriptor>& descriptor);

    uint32_t GetOptimalBytesPerRowAlignment() const override;
    uint64_t GetOptimalBufferToTextureCopyOffsetAlignment() const override;

    float GetTimestampPeriodInNS() const override;

    WGPUDevice GetInnerHandle() const;

    WGPUInstance GetInnerInstance() const;

    const DawnProcTable& wgpu;

  private:
    Device(AdapterBase* adapter,
           WGPUAdapter innerAdapter,
           const UnpackedPtr<DeviceDescriptor>& descriptor,
           const TogglesState& deviceToggles,
           Ref<DeviceBase::DeviceLostEvent>&& lostEvent);

    ResultOrError<Ref<BindGroupBase>> CreateBindGroupImpl(
        const BindGroupDescriptor* descriptor) override;
    ResultOrError<Ref<BindGroupLayoutInternalBase>> CreateBindGroupLayoutImpl(
        const BindGroupLayoutDescriptor* descriptor) override;
    ResultOrError<Ref<BufferBase>> CreateBufferImpl(
        const UnpackedPtr<BufferDescriptor>& descriptor) override;
    ResultOrError<Ref<CommandBufferBase>> CreateCommandBuffer(
        CommandEncoder* encoder,
        const CommandBufferDescriptor* descriptor) override;
    Ref<ComputePipelineBase> CreateUninitializedComputePipelineImpl(
        const UnpackedPtr<ComputePipelineDescriptor>& descriptor) override;
    ResultOrError<Ref<PipelineLayoutBase>> CreatePipelineLayoutImpl(
        const UnpackedPtr<PipelineLayoutDescriptor>& descriptor) override;
    ResultOrError<Ref<QuerySetBase>> CreateQuerySetImpl(
        const QuerySetDescriptor* descriptor) override;
    Ref<RenderPipelineBase> CreateUninitializedRenderPipelineImpl(
        const UnpackedPtr<RenderPipelineDescriptor>& descriptor) override;
    ResultOrError<Ref<SamplerBase>> CreateSamplerImpl(const SamplerDescriptor* descriptor) override;
    ResultOrError<Ref<ShaderModuleBase>> CreateShaderModuleImpl(
        const UnpackedPtr<ShaderModuleDescriptor>& descriptor,
        const std::vector<tint::wgsl::Extension>& internalExtensions,
        ShaderModuleParseResult* parseResult) override;
    ResultOrError<Ref<SwapChainBase>> CreateSwapChainImpl(
        Surface* surface,
        SwapChainBase* previousSwapChain,
        const SurfaceConfiguration* config) override;
    ResultOrError<Ref<TextureBase>> CreateTextureImpl(
        const UnpackedPtr<TextureDescriptor>& descriptor) override;
    ResultOrError<Ref<TextureViewBase>> CreateTextureViewImpl(
        TextureBase* texture,
        const UnpackedPtr<TextureViewDescriptor>& descriptor) override;

    MaybeError TickImpl() override;

    MaybeError CopyFromStagingToBuffer(BufferBase* source,
                                       uint64_t sourceOffset,
                                       BufferBase* destination,
                                       uint64_t destinationOffset,
                                       uint64_t size) override;
    MaybeError CopyFromStagingToTextureImpl(const BufferBase* source,
                                            const TexelCopyBufferLayout& src,
                                            const TextureCopy& dst,
                                            const Extent3D& copySizePixels) override;

    void DestroyImpl() override;

    // The "lower layer" implementation device that actually manages calls to GPU driver.
    WGPUDevice mInnerDevice = nullptr;
};

}  // namespace dawn::native::webgpu

#endif  // SRC_DAWN_NATIVE_WEBGPU_DEVICEWGPU_H_