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#pragma once
#ifndef TESTING_GTHRZ_HPP
#define TESTING_GTHRZ_HPP

#include "display.hpp"
#include "flops.hpp"
#include "gbyte.hpp"
#include "hipsparse.hpp"
#include "hipsparse_arguments.hpp"
#include "hipsparse_test_unique_ptr.hpp"
#include "unit.hpp"
#include "utility.hpp"

#include <hipsparse.h>

using namespace hipsparse;
using namespace hipsparse_test;

template <typename T>
void testing_gthrz_bad_arg(const Arguments& argus)
{
    int nnz       = 100;
    int safe_size = 100;

    hipsparseIndexBase_t idx_base = HIPSPARSE_INDEX_BASE_ZERO;

    std::unique_ptr<handle_struct> unique_ptr_handle(new handle_struct);
    hipsparseHandle_t              handle = unique_ptr_handle->handle;

    auto dx_val_managed = hipsparse_unique_ptr{device_malloc(sizeof(T) * safe_size), device_free};
    auto dx_ind_managed = hipsparse_unique_ptr{device_malloc(sizeof(int) * safe_size), device_free};
    auto dy_managed     = hipsparse_unique_ptr{device_malloc(sizeof(T) * safe_size), device_free};

    T*   dx_val = (T*)dx_val_managed.get();
    int* dx_ind = (int*)dx_ind_managed.get();
    T*   dy     = (T*)dy_managed.get();

#if(!defined(CUDART_VERSION))
    verify_hipsparse_status_invalid_pointer(
        hipsparseXgthrz(handle, nnz, dy, dx_val, (int*)nullptr, idx_base),
        "Error: x_ind is nullptr");
    verify_hipsparse_status_invalid_pointer(
        hipsparseXgthrz(handle, nnz, dy, (T*)nullptr, dx_ind, idx_base), "Error: x_val is nullptr");
    verify_hipsparse_status_invalid_pointer(
        hipsparseXgthrz(handle, nnz, (T*)nullptr, dx_val, dx_ind, idx_base), "Error: y is nullptr");
    verify_hipsparse_status_invalid_handle(
        hipsparseXgthrz((hipsparseHandle_t) nullptr, nnz, dy, dx_val, dx_ind, idx_base));
#endif
}

template <typename T>
hipsparseStatus_t testing_gthrz(Arguments argus)
{
#if(!defined(CUDART_VERSION) || CUDART_VERSION < 12000)
    int                  N        = argus.N;
    int                  nnz      = argus.nnz;
    hipsparseIndexBase_t idx_base = argus.baseA;

    std::unique_ptr<handle_struct> unique_ptr_handle(new handle_struct);
    hipsparseHandle_t              handle = unique_ptr_handle->handle;

    // Host structures
    std::vector<int> hx_ind(nnz);
    std::vector<T>   hx_val(nnz);
    std::vector<T>   hx_val_gold(nnz);
    std::vector<T>   hy(N);
    std::vector<T>   hy_gold(N);

    // Initial Data on CPU
    srand(12345ULL);
    hipsparseInitIndex(hx_ind.data(), nnz, 1, N);
    hipsparseInit<T>(hy, 1, N);

    hy_gold = hy;

    // allocate memory on device
    auto dx_ind_managed = hipsparse_unique_ptr{device_malloc(sizeof(int) * nnz), device_free};
    auto dx_val_managed = hipsparse_unique_ptr{device_malloc(sizeof(T) * nnz), device_free};
    auto dy_managed     = hipsparse_unique_ptr{device_malloc(sizeof(T) * N), device_free};

    int* dx_ind = (int*)dx_ind_managed.get();
    T*   dx_val = (T*)dx_val_managed.get();
    T*   dy     = (T*)dy_managed.get();

    // copy data from CPU to device
    CHECK_HIP_ERROR(hipMemcpy(dx_ind, hx_ind.data(), sizeof(int) * nnz, hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(dy, hy.data(), sizeof(T) * N, hipMemcpyHostToDevice));

    if(argus.unit_check)
    {
        // HIPSPARSE pointer mode host
        CHECK_HIPSPARSE_ERROR(hipsparseSetPointerMode(handle, HIPSPARSE_POINTER_MODE_HOST));
        CHECK_HIPSPARSE_ERROR(hipsparseXgthrz(handle, nnz, dy, dx_val, dx_ind, idx_base));

        // copy output from device to CPU
        CHECK_HIP_ERROR(hipMemcpy(hx_val.data(), dx_val, sizeof(T) * nnz, hipMemcpyDeviceToHost));
        CHECK_HIP_ERROR(hipMemcpy(hy.data(), dy, sizeof(T) * N, hipMemcpyDeviceToHost));

        // CPU
        for(int i = 0; i < nnz; ++i)
        {
            hx_val_gold[i]                = hy_gold[hx_ind[i] - idx_base];
            hy_gold[hx_ind[i] - idx_base] = make_DataType<T>(0.0);
        }

        // enable unit check, notice unit check is not invasive, but norm check is,
        // unit check and norm check can not be interchanged their order
        unit_check_general(1, nnz, 1, hx_val_gold.data(), hx_val.data());
        unit_check_general(1, N, 1, hy_gold.data(), hy.data());
    }

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

        CHECK_HIPSPARSE_ERROR(hipsparseSetPointerMode(handle, HIPSPARSE_POINTER_MODE_HOST));

        // Warm up
        for(int iter = 0; iter < number_cold_calls; ++iter)
        {
            CHECK_HIPSPARSE_ERROR(hipsparseXgthrz(handle, nnz, dy, dx_val, dx_ind, idx_base));
        }

        double gpu_time_used = get_time_us();

        // Performance run
        for(int iter = 0; iter < number_hot_calls; ++iter)
        {
            CHECK_HIPSPARSE_ERROR(hipsparseXgthrz(handle, nnz, dy, dx_val, dx_ind, idx_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));
    }
#endif

    return HIPSPARSE_STATUS_SUCCESS;
}

#endif // TESTING_GTHRZ_HPP
