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#pragma once

#include "../collective/fmha_collective_tma.hpp"
#include "../collective/fmha_collective_tma_warpspecialized.hpp"
#include "../collective/fmha_epilogue.hpp"
#include "../kernel/fmha_kernel_tma.hpp"
#include "../kernel/fmha_kernel_tma_warpspecialized.hpp"
#include "../kernel/fmha_options.hpp"

namespace cutlass::fmha::kernel {

template<
  class Element_,
  class ElementAccumulatorQK_,
  class ElementAccumulatorPV_,
  class TileShape_, // BlockQO, BlockKV, BlockHead
  class LayoutQ_,
  class LayoutK_,
  class LayoutV_,
  class Fusion,
  class DispatchPolicy,
  class... Options
>
struct FmhaBuilder;

template<
  class Element,
  class ElementAccumulator,
  class TileShape, // BlockQO, BlockKV, BlockHead
  class Fusion,
  class... Options
>
struct FmhaBuilder<
  Element,
  ElementAccumulator,
  ElementAccumulator,
  TileShape,
  cute::tuple<int, _1, cute::tuple<int, int>>,
  cute::tuple<int, _1, cute::tuple<int, int>>,
  cute::tuple<int, _1, cute::tuple<int, int>>,
  Fusion,
  cutlass::gemm::KernelTma,
  Options...
> {

  using CollectiveMainloop = cutlass::fmha::collective::FmhaMainloopTma<Element, ElementAccumulator, TileShape, Fusion, Options...>;

  using CollectiveEpilogue = cutlass::fmha::collective::FmhaFwdEpilogue<
      Element, ElementAccumulator, typename CollectiveMainloop::TileShapePV>;

  using Kernel = cutlass::fmha::kernel::FmhaKernelTma<CollectiveMainloop, CollectiveEpilogue, Options...>;
};

template<
  class Element,
  class ElementAccumulatorQK,
  class ElementAccumulatorPV,
  class TileShape, // BlockQO, BlockKV, BlockHead
  class LayoutQ,
  class LayoutK,
  class LayoutV,
  class Fusion,
  class... Options
>
struct FmhaBuilder<
  Element,
  ElementAccumulatorQK,
  ElementAccumulatorPV,
  TileShape,
  LayoutQ,
  LayoutK,
  LayoutV,
  Fusion,
  cutlass::gemm::KernelTmaWarpSpecializedCooperative,
  Options...
> {

  using CollectiveMainloop = cutlass::fmha::collective::FmhaMainloopTmaWarpSpecialized<
      Element, ElementAccumulatorQK, ElementAccumulatorPV,
      TileShape, LayoutQ, LayoutK, LayoutV,
      Fusion, Options...>;

  using CollectiveEpilogue = cutlass::fmha::collective::FmhaFwdEpilogue<
      Element, ElementAccumulatorPV, typename CollectiveMainloop::TileShapePV>;

  static constexpr bool kIsPersistent = find_option_t<Tag::kIsPersistent, false_type, Options...>::value;
  using TileScheduler = std::conditional_t<kIsPersistent, cutlass::fmha::kernel::PersistentTileScheduler, cutlass::fmha::kernel::IndividualTileScheduler>;

  using Kernel = cutlass::fmha::kernel::FmhaKernelTmaWarpSpecialized<CollectiveMainloop, CollectiveEpilogue, TileScheduler, Options...>;
};

template<
  class Element,
  class ElementAccumulatorQK,
  class ElementAccumulatorPV,
  class TileShape, // BlockQO, BlockKV, BlockHead
  class LayoutQ,
  class LayoutK,
  class LayoutV,
  class Fusion,
  class... Options
>
struct FmhaBuilder<
  Element,
  ElementAccumulatorQK,
  ElementAccumulatorPV,
  TileShape,
  LayoutQ,
  LayoutK,
  LayoutV,
  Fusion,
  cutlass::gemm::KernelTmaWarpSpecializedPingpong,
  Options...
> {
  using Kernel = typename FmhaBuilder<
      Element, ElementAccumulatorQK, ElementAccumulatorPV,
      TileShape,
      LayoutQ, LayoutK, LayoutV,
      Fusion,
      cutlass::gemm::KernelTmaWarpSpecializedCooperative,
      Options...,
      Option<Tag::kIsPersistent, true_type>,
      Option<Tag::kLoadsQSeparately, true_type>
  >::Kernel;
};

}  // namespace cutlass::fmha::kernel