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

template <typename T>
void testing_identity_bad_arg(const Arguments& arg)
{
    static const size_t safe_size = 100;

    // Create rocsparse handle
    rocsparse_local_handle handle;

    // Allocate memory on device
    device_vector<rocsparse_int> dp(safe_size);

    if(!dp)
    {
        CHECK_HIP_ERROR(hipErrorOutOfMemory);
        return;
    }

    // Test rocsparse_create_identity_permutation()
    EXPECT_ROCSPARSE_STATUS(rocsparse_create_identity_permutation(nullptr, safe_size, dp),
                            rocsparse_status_invalid_handle);
    EXPECT_ROCSPARSE_STATUS(rocsparse_create_identity_permutation(handle, safe_size, nullptr),
                            rocsparse_status_invalid_pointer);
}

template <typename T>
void testing_identity(const Arguments& arg)
{
    rocsparse_int N = arg.N;

    // Create rocsparse handle
    rocsparse_local_handle handle;

    // Argument sanity check before allocating invalid memory
    if(N <= 0)
    {
        static const size_t safe_size = 100;

        // Allocate memory on device
        device_vector<rocsparse_int> dp(safe_size);

        if(!dp)
        {
            CHECK_HIP_ERROR(hipErrorOutOfMemory);
            return;
        }

        EXPECT_ROCSPARSE_STATUS(rocsparse_create_identity_permutation(handle, N, dp),
                                (N < 0) ? rocsparse_status_invalid_size : rocsparse_status_success);

        return;
    }

    // Allocate host memory
    host_vector<rocsparse_int> hp(N);
    host_vector<rocsparse_int> hp_gold(N);

    // Allocate device memory
    device_vector<rocsparse_int> dp(N);

    if(!dp)
    {
        CHECK_HIP_ERROR(hipErrorOutOfMemory);
        return;
    }

    if(arg.unit_check)
    {
        CHECK_ROCSPARSE_ERROR(rocsparse_create_identity_permutation(handle, N, dp));

        // Copy output to host
        CHECK_HIP_ERROR(hipMemcpy(hp, dp, sizeof(rocsparse_int) * N, hipMemcpyDeviceToHost));

        // CPU identity
        for(rocsparse_int i = 0; i < N; ++i)
        {
            hp_gold[i] = i;
        }

        hp_gold.unit_check(hp);
    }

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

        // Warm up
        for(int iter = 0; iter < number_cold_calls; ++iter)
        {
            CHECK_ROCSPARSE_ERROR(rocsparse_create_identity_permutation(handle, N, dp));
        }

        double gpu_time_used = get_time_us();

        // Performance run
        for(int iter = 0; iter < number_hot_calls; ++iter)
        {
            CHECK_ROCSPARSE_ERROR(rocsparse_create_identity_permutation(handle, N, dp));
        }

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

        double gbyte_count = identity_gbyte_count<T>(N);
        double gpu_gbyte   = get_gpu_gbyte(gpu_time_used, gbyte_count);
        display_timing_info("N",
                            N,
                            s_timing_info_bandwidth,
                            gpu_gbyte,
                            s_timing_info_time,
                            get_gpu_time_msec(gpu_time_used));
    }
}

#define INSTANTIATE(TYPE)                                               \
    template void testing_identity_bad_arg<TYPE>(const Arguments& arg); \
    template void testing_identity<TYPE>(const Arguments& arg)
INSTANTIATE(float);
INSTANTIATE(double);
INSTANTIATE(rocsparse_float_complex);
INSTANTIATE(rocsparse_double_complex);
