/*! \file */
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#include "testing.hpp"

template <typename T>
void testing_gthrz_bad_arg(const Arguments& arg)
{
    rocsparse_local_handle local_handle;
    rocsparse_handle       handle   = local_handle;
    rocsparse_int          nnz      = 2;
    T*                     y        = (T*)0x4;
    T*                     x_val    = (T*)0x4;
    const rocsparse_int*   x_ind    = (const rocsparse_int*)0x4;
    rocsparse_index_base   idx_base = rocsparse_index_base_zero;
    bad_arg_analysis(rocsparse_gthrz<T>, handle, nnz, y, x_val, x_ind, idx_base);
}

template <typename T>
void testing_gthrz(const Arguments& arg)
{
    rocsparse_int        M    = arg.M;
    rocsparse_int        nnz  = arg.nnz;
    rocsparse_index_base base = arg.baseA;

    // Create rocsparse handle
    rocsparse_local_handle handle(arg);

    // Allocate host memory
    host_vector<rocsparse_int> hx_ind(nnz);
    host_vector<T>             hx_val_1(nnz);
    host_vector<T>             hx_val_2(nnz);
    host_vector<T>             hx_val_gold(nnz);
    host_vector<T>             hy_1(M);
    host_vector<T>             hy_2(M);
    host_vector<T>             hy_gold(M);

    // Initialize data on CPU
    rocsparse_seedrand();
    rocsparse_init_index(hx_ind, nnz, base, M + base);
    rocsparse_init<T>(hy_1, 1, M, 1);
    hy_2    = hy_1;
    hy_gold = hy_1;

    // Allocate device memory
    device_vector<rocsparse_int> dx_ind(nnz);
    device_vector<T>             dx_val_1(nnz);
    device_vector<T>             dx_val_2(nnz);
    device_vector<T>             dy_1(M);
    device_vector<T>             dy_2(M);

    // Copy data from CPU to device
    CHECK_HIP_ERROR(hipMemcpy(dx_ind, hx_ind, sizeof(rocsparse_int) * nnz, hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(dy_1, hy_1, sizeof(T) * M, hipMemcpyHostToDevice));

    if(arg.unit_check)
    {
        // Copy data from CPU to device
        CHECK_HIP_ERROR(hipMemcpy(dy_2, hy_2, sizeof(T) * M, hipMemcpyHostToDevice));

        // Pointer mode host
        CHECK_ROCSPARSE_ERROR(rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_host));
        CHECK_ROCSPARSE_ERROR(
            testing::rocsparse_gthrz<T>(handle, nnz, dy_1, (T*)dx_val_1, dx_ind, base));

        // Pointer mode device
        CHECK_ROCSPARSE_ERROR(rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_device));
        CHECK_ROCSPARSE_ERROR(
            testing::rocsparse_gthrz<T>(handle, nnz, dy_2, (T*)dx_val_2, dx_ind, base));

        // Copy output to host
        CHECK_HIP_ERROR(hipMemcpy(hx_val_1, dx_val_1, sizeof(T) * nnz, hipMemcpyDeviceToHost));
        CHECK_HIP_ERROR(hipMemcpy(hx_val_2, dx_val_2, sizeof(T) * nnz, hipMemcpyDeviceToHost));
        CHECK_HIP_ERROR(hipMemcpy(hy_1, dy_1, sizeof(T) * M, hipMemcpyDeviceToHost));
        CHECK_HIP_ERROR(hipMemcpy(hy_2, dy_2, sizeof(T) * M, hipMemcpyDeviceToHost));

        // CPU gthrz
        host_gthrz<T>(nnz, hy_gold, hx_val_gold, hx_ind, base);

        hx_val_gold.unit_check(hx_val_1);
        hx_val_gold.unit_check(hx_val_2);

        hy_gold.unit_check(hy_1);
        hy_gold.unit_check(hy_2);
    }

    if(arg.timing)
    {
        int number_cold_calls = 2;
        int number_hot_calls  = arg.iters;

        CHECK_ROCSPARSE_ERROR(rocsparse_set_pointer_mode(handle, rocsparse_pointer_mode_host));

        // Warm up
        for(int iter = 0; iter < number_cold_calls; ++iter)
        {
            CHECK_ROCSPARSE_ERROR(rocsparse_gthrz<T>(handle, nnz, dy_1, dx_val_1, dx_ind, base));
        }

        double gpu_time_used = get_time_us();

        // Performance run
        for(int iter = 0; iter < number_hot_calls; ++iter)
        {
            CHECK_ROCSPARSE_ERROR(rocsparse_gthrz<T>(handle, nnz, dy_1, dx_val_1, dx_ind, base));
        }

        gpu_time_used = (get_time_us() - gpu_time_used) / number_hot_calls;

        double gbyte_count = gthrz_gbyte_count<T>(nnz);
        double gpu_gbyte   = get_gpu_gbyte(gpu_time_used, gbyte_count);

        display_timing_info(display_key_t::nnz,
                            nnz,
                            display_key_t::bandwidth,
                            gpu_gbyte,
                            display_key_t::time_ms,
                            get_gpu_time_msec(gpu_time_used));
    }
}

#define INSTANTIATE(TYPE)                                            \
    template void testing_gthrz_bad_arg<TYPE>(const Arguments& arg); \
    template void testing_gthrz<TYPE>(const Arguments& arg)
INSTANTIATE(float);
INSTANTIATE(double);
INSTANTIATE(rocsparse_float_complex);
INSTANTIATE(rocsparse_double_complex);
void testing_gthrz_extra(const Arguments& arg) {}
