/* ************************************************************************
 * Copyright (C) 2018-2025 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
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 * CTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * ************************************************************************ */

#pragma once

#include "testing_common.hpp"

/* ============================================================================================ */

template <typename T>
void testing_dgmm_bad_arg(const Arguments& arg)
{
    auto rocblas_dgmm_fn = arg.api & c_API_FORTRAN ? rocblas_dgmm<T, true> : rocblas_dgmm<T, false>;
    auto rocblas_dgmm_fn_64
        = arg.api & c_API_FORTRAN ? rocblas_dgmm_64<T, true> : rocblas_dgmm_64<T, false>;

    const int64_t M = 100;
    const int64_t N = 101;

    const int64_t lda  = 100;
    const int64_t incx = 1;
    const int64_t ldc  = 100;

    rocblas_side side = rocblas_side_left;

    // no device/host loop required as no difference
    rocblas_local_handle handle{arg};

    rocblas_int K = rocblas_side_right == side ? N : M;

    // Allocate device memory
    DEVICE_MEMCHECK(device_matrix<T>, dA, (M, N, lda));
    DEVICE_MEMCHECK(device_vector<T>, dx, (K, incx));
    DEVICE_MEMCHECK(device_matrix<T>, dC, (M, N, ldc));

    DAPI_EXPECT(rocblas_status_invalid_handle,
                rocblas_dgmm_fn,
                (nullptr, side, M, N, dA, lda, dx, incx, dC, ldc));

    DAPI_EXPECT(rocblas_status_invalid_value,
                rocblas_dgmm_fn,
                (handle, (rocblas_side)rocblas_fill_full, M, N, dA, lda, dx, incx, dC, ldc));

    // sizes and quick returns done in normal test harness
    DAPI_EXPECT(rocblas_status_invalid_pointer,
                rocblas_dgmm_fn,
                (handle, side, M, N, nullptr, lda, dx, incx, dC, ldc));

    DAPI_EXPECT(rocblas_status_invalid_pointer,
                rocblas_dgmm_fn,
                (handle, side, M, N, dA, lda, nullptr, incx, dC, ldc));

    DAPI_EXPECT(rocblas_status_invalid_pointer,
                rocblas_dgmm_fn,
                (handle, side, M, N, dA, lda, dx, incx, nullptr, ldc));
}

template <typename T>
void testing_dgmm(const Arguments& arg)
{
    auto rocblas_dgmm_fn = arg.api & c_API_FORTRAN ? rocblas_dgmm<T, true> : rocblas_dgmm<T, false>;
    auto rocblas_dgmm_fn_64
        = arg.api & c_API_FORTRAN ? rocblas_dgmm_64<T, true> : rocblas_dgmm_64<T, false>;

    rocblas_side side = char2rocblas_side(arg.side);

    int64_t M = arg.M;
    int64_t N = arg.N;
    int64_t K = rocblas_side_right == side ? size_t(N) : size_t(M);

    int64_t lda  = arg.lda;
    int64_t incx = arg.incx;
    int64_t ldc  = arg.ldc;

    double cpu_time_used;

    double rocblas_error = std::numeric_limits<double>::max();

    rocblas_local_handle handle{arg};

    // argument sanity check before allocating invalid memory
    bool invalid_size = M < 0 || N < 0 || lda < M || ldc < M;
    if(invalid_size || !M || !N)
    {
        DAPI_EXPECT(invalid_size ? rocblas_status_invalid_size : rocblas_status_success,
                    rocblas_dgmm_fn,
                    (handle, side, M, N, nullptr, lda, nullptr, incx, nullptr, ldc));
        return;
    }

    // Naming: `h` is in CPU (host) memory(eg hA), `d` is in GPU (device) memory (eg dA).
    // Allocate host memory
    HOST_MEMCHECK(host_matrix<T>, hA, (M, N, lda));
    HOST_MEMCHECK(host_vector<T>, hx, (K, incx));
    HOST_MEMCHECK(host_matrix<T>, hC, (M, N, ldc));
    HOST_MEMCHECK(host_matrix<T>, hC_gold, (M, N, ldc));

    // Allocate device memory
    DEVICE_MEMCHECK(device_matrix<T>, dA, (M, N, lda));
    DEVICE_MEMCHECK(device_vector<T>, dx, (K, incx));
    DEVICE_MEMCHECK(device_matrix<T>, dC, (M, N, ldc));

    // Initialize data on host memory
    rocblas_init_matrix(hA, arg, rocblas_client_never_set_nan, rocblas_client_general_matrix, true);
    rocblas_init_vector(hx, arg, rocblas_client_never_set_nan, false, true);
    rocblas_init_matrix(hC, arg, rocblas_client_never_set_nan, rocblas_client_general_matrix);

    // copy data from CPU to device
    CHECK_HIP_ERROR(dA.transfer_from(hA));
    CHECK_HIP_ERROR(dx.transfer_from(hx));
    CHECK_HIP_ERROR(dC.transfer_from(hC));

    if(arg.unit_check || arg.norm_check)
    {
        // ROCBLAS
        handle.pre_test(arg);
        DAPI_CHECK(rocblas_dgmm_fn, (handle, side, M, N, dA, lda, dx, incx, dC, ldc));
        handle.post_test(arg);

        // fecth from GPU
        CHECK_HIP_ERROR(hC.transfer_from(dC));

        if(arg.repeatability_check)
        {
            HOST_MEMCHECK(host_matrix<T>, hC_copy, (M, N, ldc));
            // multi-GPU support
            int device_id, device_count;
            CHECK_HIP_ERROR(limit_device_count(device_count, (int)arg.devices));

            for(int dev_id = 0; dev_id < device_count; dev_id++)
            {
                CHECK_HIP_ERROR(hipGetDevice(&device_id));
                if(device_id != dev_id)
                    CHECK_HIP_ERROR(hipSetDevice(dev_id));

                //New rocblas handle for new device
                rocblas_local_handle handle_copy{arg};

                //Allocate device memory in new device
                DEVICE_MEMCHECK(device_matrix<T>, dA_copy, (M, N, lda));
                DEVICE_MEMCHECK(device_vector<T>, dx_copy, (K, incx));
                DEVICE_MEMCHECK(device_matrix<T>, dC_copy, (M, N, ldc));

                // copy data from CPU to device
                CHECK_HIP_ERROR(dA_copy.transfer_from(hA));
                CHECK_HIP_ERROR(dx_copy.transfer_from(hx));
                CHECK_HIP_ERROR(dC_copy.transfer_from(hC));

                CHECK_ROCBLAS_ERROR(
                    rocblas_set_pointer_mode(handle_copy, rocblas_pointer_mode_device));

                for(int runs = 0; runs < arg.iters; runs++)
                {
                    DAPI_CHECK(
                        rocblas_dgmm_fn,
                        (handle_copy, side, M, N, dA_copy, lda, dx_copy, incx, dC_copy, ldc));

                    CHECK_HIP_ERROR(hC_copy.transfer_from(dC_copy));
                    unit_check_general<T>(M, N, ldc, hC, hC_copy);
                }
            }
            return;
        }

        // reference calculation for golden result
        cpu_time_used = get_time_us_no_sync();
        ref_dgmm<T>(side, M, N, hA, lda, hx, incx, hC_gold, ldc);
        cpu_time_used = get_time_us_no_sync() - cpu_time_used;

        if(arg.unit_check)
        {
            unit_check_general<T>(M, N, ldc, hC_gold, hC);
        }

        if(arg.norm_check)
        {
            rocblas_error = norm_check_general<T>('F', M, N, ldc, hC_gold, hC);
        }

    } // end of if unit/norm check

    if(arg.timing)
    {
        double gpu_time_used;
        int    number_cold_calls = arg.cold_iters;
        int    total_calls       = number_cold_calls + arg.iters;

        hipStream_t stream;
        CHECK_ROCBLAS_ERROR(rocblas_get_stream(handle, &stream));

        for(int iter = 0; iter < total_calls; iter++)
        {
            if(iter == number_cold_calls)
                gpu_time_used = get_time_us_sync(stream);

            DAPI_DISPATCH(rocblas_dgmm_fn, (handle, side, M, N, dA, lda, dx, incx, dC, ldc));
        }

        gpu_time_used = get_time_us_sync(stream) - gpu_time_used; // in microseconds

        ArgumentModel<e_side, e_M, e_N, e_lda, e_incx, e_ldc>{}.log_args<T>(
            rocblas_cout,
            arg,
            gpu_time_used,
            dgmm_gflop_count<T>(M, N),
            ArgumentLogging::NA_value,
            cpu_time_used,
            rocblas_error);
    }
}