/* ************************************************************************
 * Copyright (C) 2016-2023 Advanced Micro Devices, Inc. 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 cop-
 * ies 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 IM-
 * PLIED, 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 CONNE-
 * CTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * ************************************************************************ */

#include "handle.hpp"
#include "rocblas.h"

#ifdef BUILD_WITH_TENSILE

#include "logging.hpp"
#include "rocblas_gemm_ex.hpp"
#include "rocblas_gemm_ex_get_solutions.hpp"
#include "utility.hpp"

#endif

extern "C" rocblas_status rocblas_gemm_batched_ex(rocblas_handle    handle,
                                                  rocblas_operation trans_a,
                                                  rocblas_operation trans_b,
                                                  rocblas_int       m,
                                                  rocblas_int       n,
                                                  rocblas_int       k,
                                                  const void*       alpha,
                                                  const void*       a,
                                                  rocblas_datatype  a_type,
                                                  rocblas_int       lda,
                                                  const void*       b,
                                                  rocblas_datatype  b_type,
                                                  rocblas_int       ldb,
                                                  const void*       beta,
                                                  const void*       c,
                                                  rocblas_datatype  c_type,
                                                  rocblas_int       ldc,
                                                  void*             d,
                                                  rocblas_datatype  d_type,
                                                  rocblas_int       ldd,
                                                  rocblas_int       batch_count,
                                                  rocblas_datatype  compute_type,
                                                  rocblas_gemm_algo algo,
                                                  int32_t           solution_index,
                                                  uint32_t          flags)
try
{
#ifdef BUILD_WITH_TENSILE
    if(!handle)
        return rocblas_status_invalid_handle;

    const bool HPA = compute_type == rocblas_datatype_f32_r
                     && (a_type == rocblas_datatype_f16_r || a_type == rocblas_datatype_bf16_r);

    if(!HPA)
        RETURN_ZERO_DEVICE_MEMORY_SIZE_IF_QUERIED(handle);

    // Copy alpha and beta to host if on device
    rocblas_union_t alpha_h, beta_h;
    RETURN_IF_ROCBLAS_ERROR(rocblas_copy_alpha_beta_to_host_if_on_device(
        handle, alpha, beta, alpha_h, beta_h, k, compute_type));
    auto saved_pointer_mode = handle->push_pointer_mode(rocblas_pointer_mode_host);

    if(!handle->is_device_memory_size_query())
    {
        // Perform logging
        auto layer_mode = handle->layer_mode;
        if(layer_mode
           & (rocblas_layer_mode_log_trace | rocblas_layer_mode_log_bench
              | rocblas_layer_mode_log_profile))
        {
            char trans_a_letter, trans_b_letter;
            if(layer_mode & (rocblas_layer_mode_log_bench | rocblas_layer_mode_log_profile))
            {
                trans_a_letter = rocblas_transpose_letter(trans_a);
                trans_b_letter = rocblas_transpose_letter(trans_b);
            }
            auto a_type_string       = rocblas_datatype_string(a_type);
            auto b_type_string       = rocblas_datatype_string(b_type);
            auto c_type_string       = rocblas_datatype_string(c_type);
            auto d_type_string       = rocblas_datatype_string(d_type);
            auto compute_type_string = rocblas_datatype_string(compute_type);

            if(layer_mode & rocblas_layer_mode_log_trace)
            {
                rocblas_internal_ostream alphass, betass;

                if(log_trace_alpha_beta_ex(compute_type, alpha, beta, alphass, betass)
                   == rocblas_status_success)
                {
                    log_trace(handle,
                              "rocblas_gemm_batched_ex",
                              trans_a,
                              trans_b,
                              m,
                              n,
                              k,
                              alphass.str(),
                              a,
                              a_type_string,
                              lda,
                              b,
                              b_type_string,
                              ldb,
                              betass.str(),
                              c,
                              c_type_string,
                              ldc,
                              d,
                              d_type_string,
                              ldd,
                              batch_count,
                              compute_type_string,
                              algo,
                              solution_index,
                              rocblas_gemm_flags(flags));
                }
            }

            if(layer_mode & rocblas_layer_mode_log_bench)
            {
                std::string alphas, betas;

                if(log_bench_alpha_beta_ex(compute_type, alpha, beta, alphas, betas)
                   == rocblas_status_success)
                {
                    log_bench(handle,
                              "./rocblas-bench -f gemm_batched_ex",
                              "--transposeA",
                              trans_a_letter,
                              "--transposeB",
                              trans_b_letter,
                              "-m",
                              m,
                              "-n",
                              n,
                              "-k",
                              k,
                              alphas,
                              "--a_type",
                              a_type_string,
                              "--lda",
                              lda,
                              "--b_type",
                              b_type_string,
                              "--ldb",
                              ldb,
                              betas,
                              "--c_type",
                              c_type_string,
                              "--ldc",
                              "--d_type",
                              d_type_string,
                              "--ldd",
                              ldd,
                              "--batch_count",
                              batch_count,
                              "--compute_type",
                              compute_type_string,
                              "--algo",
                              algo,
                              "--solution_index",
                              solution_index,
                              "--flags",
                              flags);
                }
            }

            if(layer_mode & rocblas_layer_mode_log_profile)
            {
                log_profile(handle,
                            "rocblas_gemm_batched_ex",
                            "a_type",
                            a_type_string,
                            "b_type",
                            b_type_string,
                            "c_type",
                            c_type_string,
                            "d_type",
                            d_type_string,
                            "compute_type",
                            compute_type_string,
                            "transA",
                            trans_a_letter,
                            "transB",
                            trans_b_letter,
                            "M",
                            m,
                            "N",
                            n,
                            "K",
                            k,
                            "alpha",
                            value_category(alpha, compute_type),
                            "lda",
                            lda,
                            "ldb",
                            ldb,
                            "beta",
                            value_category(beta, compute_type),
                            "ldc",
                            ldc,
                            "ldd",
                            ldd,
                            "batch_count",
                            batch_count,
                            "algo",
                            algo,
                            "solution_index",
                            solution_index,
                            "flags",
                            rocblas_gemm_flags(flags));
            }
        }
    }

    auto validArgs = rocblas_validateArgs(handle,
                                          trans_a,
                                          trans_b,
                                          m,
                                          n,
                                          k,
                                          alpha,
                                          a,
                                          lda,
                                          b,
                                          ldb,
                                          beta,
                                          c,
                                          c_type,
                                          ldc,
                                          d,
                                          d_type,
                                          ldd,
                                          compute_type,
                                          batch_count);

    if(validArgs != rocblas_status_continue)
    {
        if(validArgs == rocblas_status_success)
            RETURN_ZERO_DEVICE_MEMORY_SIZE_IF_QUERIED(handle);
        return validArgs;
    }

    auto stride_a = rocblas_stride(lda) * (trans_a == rocblas_operation_none ? k : m);
    auto stride_b = rocblas_stride(ldb) * (trans_b == rocblas_operation_none ? n : k);
    auto stride_c = rocblas_stride(ldc) * n;
    auto stride_d = rocblas_stride(ldd) * n;

    return rocblas_gemm_ex_template<true>(handle,
                                          trans_a,
                                          trans_b,
                                          m,
                                          n,
                                          k,
                                          alpha,
                                          a,
                                          a_type,
                                          0,
                                          lda,
                                          stride_a,
                                          b,
                                          b_type,
                                          0,
                                          ldb,
                                          stride_b,
                                          beta,
                                          c,
                                          c_type,
                                          0,
                                          ldc,
                                          stride_c,
                                          d,
                                          d_type,
                                          0,
                                          ldd,
                                          stride_d,
                                          batch_count,
                                          compute_type,
                                          algo,
                                          solution_index,
                                          flags);
#else
    return rocblas_status_excluded_from_build;
#endif
}
catch(...)
{
    return exception_to_rocblas_status();
}

extern "C" rocblas_status rocblas_gemm_batched_ex_get_solutions(rocblas_handle    handle,
                                                                rocblas_operation trans_a,
                                                                rocblas_operation trans_b,
                                                                rocblas_int       m,
                                                                rocblas_int       n,
                                                                rocblas_int       k,
                                                                const void*       alpha,
                                                                const void*       a,
                                                                rocblas_datatype  a_type,
                                                                rocblas_int       lda,
                                                                const void*       b,
                                                                rocblas_datatype  b_type,
                                                                rocblas_int       ldb,
                                                                const void*       beta,
                                                                const void*       c,
                                                                rocblas_datatype  c_type,
                                                                rocblas_int       ldc,
                                                                void*             d,
                                                                rocblas_datatype  d_type,
                                                                rocblas_int       ldd,
                                                                rocblas_int       batch_count,
                                                                rocblas_datatype  compute_type,
                                                                rocblas_gemm_algo algo,
                                                                uint32_t          flags,
                                                                rocblas_int*      list_array,
                                                                rocblas_int*      list_size)
{
    try
    {
#ifdef BUILD_WITH_TENSILE
        if(!handle)
            return rocblas_status_invalid_handle;

        const bool HPA = compute_type == rocblas_datatype_f32_r
                         && (a_type == rocblas_datatype_f16_r || a_type == rocblas_datatype_bf16_r);

        if(!HPA)
            RETURN_ZERO_DEVICE_MEMORY_SIZE_IF_QUERIED(handle);

        auto validArgs = rocblas_validateArgs(handle,
                                              trans_a,
                                              trans_b,
                                              m,
                                              n,
                                              k,
                                              alpha,
                                              a,
                                              lda,
                                              b,
                                              ldb,
                                              beta,
                                              c,
                                              c_type,
                                              ldc,
                                              d,
                                              d_type,
                                              ldd,
                                              compute_type,
                                              batch_count);

        if(validArgs != rocblas_status_continue)
        {
            if(validArgs == rocblas_status_success)
                RETURN_ZERO_DEVICE_MEMORY_SIZE_IF_QUERIED(handle);
            return validArgs;
        }

        auto stride_a = rocblas_stride(lda) * (trans_a == rocblas_operation_none ? k : m);
        auto stride_b = rocblas_stride(ldb) * (trans_b == rocblas_operation_none ? n : k);
        auto stride_c = rocblas_stride(ldc) * n;
        auto stride_d = rocblas_stride(ldd) * n;

        return rocblas_gemm_ex_get_solutions_template<true>(handle,
                                                            trans_a,
                                                            trans_b,
                                                            m,
                                                            n,
                                                            k,
                                                            alpha,
                                                            a,
                                                            a_type,
                                                            0,
                                                            lda,
                                                            stride_a,
                                                            b,
                                                            b_type,
                                                            0,
                                                            ldb,
                                                            stride_b,
                                                            beta,
                                                            c,
                                                            c_type,
                                                            0,
                                                            ldc,
                                                            stride_c,
                                                            d,
                                                            d_type,
                                                            0,
                                                            ldd,
                                                            stride_d,
                                                            batch_count,
                                                            compute_type,
                                                            flags,
                                                            CAN_SOLVE,
                                                            list_array,
                                                            list_size);
#else
        return rocblas_status_excluded_from_build;
#endif
    }
    catch(...)
    {
        return exception_to_rocblas_status();
    }
}

ROCBLAS_EXPORT rocblas_status
    rocblas_gemm_batched_ex_get_solutions_by_type(rocblas_handle   handle,
                                                  rocblas_datatype input_type,
                                                  rocblas_datatype output_type,
                                                  rocblas_datatype compute_type,
                                                  uint32_t         flags,
                                                  rocblas_int*     list_array,
                                                  rocblas_int*     list_size)
{
#ifdef BUILD_WITH_TENSILE
    // Create dummy GEMM problem to take advantage of problem templating
    // Most parameters are ignored, just needs to be valid for all types
    float          alpha = 0.0f;
    float          beta  = 0.0f;
    rocblas_stride stride{1};
    return rocblas_gemm_ex_get_solutions_template<true>(handle,
                                                        rocblas_operation_none,
                                                        rocblas_operation_none,
                                                        4,
                                                        4,
                                                        4,
                                                        &alpha,
                                                        NULL,
                                                        input_type,
                                                        0,
                                                        4,
                                                        stride,
                                                        NULL,
                                                        input_type,
                                                        0,
                                                        4,
                                                        stride,
                                                        &beta,
                                                        NULL,
                                                        output_type,
                                                        0,
                                                        4,
                                                        stride,
                                                        NULL,
                                                        output_type,
                                                        0,
                                                        4,
                                                        stride,
                                                        2,
                                                        compute_type,
                                                        flags,
                                                        MATCHES_TYPE,
                                                        list_array,
                                                        list_size);
#else
    return rocblas_status_excluded_from_build;
#endif
}
