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#pragma once
#ifndef TESTING_AXPBY_HPP
#define TESTING_AXPBY_HPP

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

#include <hipsparse.h>

using namespace hipsparse_test;

template <typename I, typename X, typename Y, typename T>
void testing_axpby_bad_arg(const Arguments& argus)
{
#if(!defined(CUDART_VERSION) || CUDART_VERSION >= 11000)

    int64_t size = 100;
    int64_t nnz  = 100;

    T alpha = make_DataType<T>(3.7);
    T beta  = make_DataType<T>(1.2);

    hipsparseIndexType_t idxType = getIndexType<I>();
    hipsparseIndexBase_t idxBase = HIPSPARSE_INDEX_BASE_ZERO;
    hipDataType          xType   = getDataType<X>();
    hipDataType          yType   = getDataType<Y>();

    hipsparseLocalHandle_t handle;

    auto dx_val_managed = hipsparse_unique_ptr{device_malloc(sizeof(X) * nnz), device_free};
    auto dx_ind_managed = hipsparse_unique_ptr{device_malloc(sizeof(I) * nnz), device_free};
    auto dy_managed     = hipsparse_unique_ptr{device_malloc(sizeof(Y) * size), device_free};

    X* dx_val = (X*)dx_val_managed.get();
    I* dx_ind = (I*)dx_ind_managed.get();
    Y* dy     = (Y*)dy_managed.get();

    // Structures
    hipsparseSpVecDescr_t x;
    hipsparseDnVecDescr_t y;

    verify_hipsparse_status_success(
        hipsparseCreateSpVec(&x, size, nnz, dx_ind, dx_val, idxType, idxBase, xType), "Success");
    verify_hipsparse_status_success(hipsparseCreateDnVec(&y, size, dy, yType), "Success");

    // Axpby
    verify_hipsparse_status_invalid_handle(hipsparseAxpby(nullptr, &alpha, x, &beta, y));
    verify_hipsparse_status_invalid_pointer(hipsparseAxpby(handle, nullptr, x, &beta, y),
                                            "Error: alpha is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseAxpby(handle, &alpha, nullptr, &beta, y),
                                            "Error: x is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseAxpby(handle, &alpha, x, nullptr, y),
                                            "Error: beta is nullptr");
    verify_hipsparse_status_invalid_pointer(hipsparseAxpby(handle, &alpha, x, &beta, nullptr),
                                            "Error: y is nullptr");

    // Destruct
    verify_hipsparse_status_success(hipsparseDestroySpVec(x), "Success");
    verify_hipsparse_status_success(hipsparseDestroyDnVec(y), "Success");
#endif
}

template <typename I, typename X, typename Y, typename T>
void testing_axpby(Arguments argus)
{
#if(!defined(CUDART_VERSION) || CUDART_VERSION >= 11000)
    I size = argus.N;
    I nnz  = argus.nnz;

    T alpha = argus.get_alpha<T>();
    T beta  = argus.get_beta<T>();

    hipsparseIndexBase_t idxBase = argus.baseA;

    // Index and data types
    hipsparseIndexType_t idxType = getIndexType<I>();
    hipDataType          xType   = getDataType<X>();
    hipDataType          yType   = getDataType<Y>();

    // hipSPARSE handle
    hipsparseLocalHandle_t handle(argus);

    // Host structures
    std::vector<I> hx_ind(nnz);
    std::vector<X> hx_val(nnz);
    std::vector<Y> hy(size);
    std::vector<Y> hy_gold(size);

    // Initial Data on CPU
    srand(12345ULL);
    hipsparseInitIndex(hx_ind.data(), nnz, idxBase, size + idxBase);
    hipsparseInit<X>(hx_val, 1, nnz);
    hipsparseInit<Y>(hy, 1, size);

    hy_gold = hy;

    // Allocate memory on device
    auto dx_ind_managed = hipsparse_unique_ptr{device_malloc(sizeof(I) * nnz), device_free};
    auto dx_val_managed = hipsparse_unique_ptr{device_malloc(sizeof(X) * nnz), device_free};
    auto dy_managed     = hipsparse_unique_ptr{device_malloc(sizeof(Y) * size), device_free};

    I* dx_ind = (I*)dx_ind_managed.get();
    X* dx_val = (X*)dx_val_managed.get();
    Y* dy     = (Y*)dy_managed.get();

    // copy data from CPU to device
    CHECK_HIP_ERROR(hipMemcpy(dx_ind, hx_ind.data(), sizeof(I) * nnz, hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(dx_val, hx_val.data(), sizeof(X) * nnz, hipMemcpyHostToDevice));
    CHECK_HIP_ERROR(hipMemcpy(dy, hy.data(), sizeof(Y) * size, hipMemcpyHostToDevice));

    // Create structures
    hipsparseSpVecDescr_t x;
    hipsparseDnVecDescr_t y;

    CHECK_HIPSPARSE_ERROR(
        hipsparseCreateSpVec(&x, size, nnz, dx_ind, dx_val, idxType, idxBase, xType));
    CHECK_HIPSPARSE_ERROR(hipsparseCreateDnVec(&y, size, dy, yType));

    if(argus.unit_check)
    {
        // Axpby
        CHECK_HIPSPARSE_ERROR(testing::hipsparseAxpby(handle, &alpha, x, &beta, y));

        // Copy output from device to CPU
        CHECK_HIP_ERROR(hipMemcpy(hy.data(), dy, sizeof(Y) * size, hipMemcpyDeviceToHost));

        // CPU
        host_axpby<I, X, Y, T>(
            size, nnz, alpha, hx_val.data(), hx_ind.data(), beta, hy_gold.data(), idxBase);

        // Verify results against host
        unit_check_general(1, size, 1, hy_gold.data(), hy.data());
    }

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

        // Warm up
        for(int iter = 0; iter < number_cold_calls; ++iter)
        {
            CHECK_HIPSPARSE_ERROR(testing::hipsparseAxpby(handle, &alpha, x, &beta, y));
        }

        double gpu_time_used = get_time_us();

        // Performance run
        for(int iter = 0; iter < number_hot_calls; ++iter)
        {
            CHECK_HIPSPARSE_ERROR(testing::hipsparseAxpby(handle, &alpha, x, &beta, y));
        }

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

        double gflop_count = axpby_gflop_count(nnz);
        double gbyte_count = axpby_gbyte_count<X, Y>(nnz, size);

        double gpu_gbyte  = get_gpu_gbyte(gpu_time_used, gbyte_count);
        double gpu_gflops = get_gpu_gflops(gpu_time_used, gflop_count);

        display_timing_info(display_key_t::size,
                            size,
                            display_key_t::nnz,
                            nnz,
                            display_key_t::alpha,
                            alpha,
                            display_key_t::beta,
                            beta,
                            display_key_t::gflops,
                            gpu_gflops,
                            display_key_t::bandwidth,
                            gpu_gbyte,
                            display_key_t::time_ms,
                            get_gpu_time_msec(gpu_time_used));
    }

    CHECK_HIPSPARSE_ERROR(hipsparseDestroySpVec(x));
    CHECK_HIPSPARSE_ERROR(hipsparseDestroyDnVec(y));

#endif
}

#endif // TESTING_AXPBY_HPP