/* ************************************************************************
 * Copyright (C) 2018-2023 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
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNE-
 * CTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * ************************************************************************ */

#pragma once

#include "cblas_interface.hpp"
#include "norm.hpp"
#include "rocblas.hpp"
#include "rocblas_init.hpp"
#include "rocblas_math.hpp"
#include "rocblas_random.hpp"
#include "rocblas_test.hpp"
#include "rocblas_vector.hpp"
#include "unit.hpp"
#include "utility.hpp"

template <typename T, typename U = T, typename V = T>
void testing_rot_strided_batched_bad_arg(const Arguments& arg)
{
    auto rocblas_rot_strided_batched_fn = arg.api == FORTRAN
                                              ? rocblas_rot_strided_batched<T, U, V, true>
                                              : rocblas_rot_strided_batched<T, U, V, false>;

    rocblas_int         N           = 100;
    rocblas_int         incx        = 1;
    rocblas_stride      stride_x    = 1;
    rocblas_int         incy        = 1;
    rocblas_stride      stride_y    = 1;
    rocblas_int         batch_count = 5;
    static const size_t safe_size   = 100;

    rocblas_local_handle handle{arg};

    // Allocate device memory
    device_strided_batch_vector<T> dx(N, incx, stride_x, batch_count);
    device_strided_batch_vector<T> dy(N, incy, stride_y, batch_count);
    device_vector<U>               dc(1, 1);
    device_vector<V>               ds(1, 1);

    // Check device memory allocation
    CHECK_DEVICE_ALLOCATION(dx.memcheck());
    CHECK_DEVICE_ALLOCATION(dy.memcheck());
    CHECK_DEVICE_ALLOCATION(dc.memcheck());
    CHECK_DEVICE_ALLOCATION(ds.memcheck());

    EXPECT_ROCBLAS_STATUS(
        (rocblas_rot_strided_batched_fn(
            nullptr, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count)),
        rocblas_status_invalid_handle);
    EXPECT_ROCBLAS_STATUS(
        (rocblas_rot_strided_batched_fn(
            handle, N, nullptr, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count)),
        rocblas_status_invalid_pointer);
    EXPECT_ROCBLAS_STATUS(
        (rocblas_rot_strided_batched_fn(
            handle, N, dx, incx, stride_x, nullptr, incy, stride_y, dc, ds, batch_count)),
        rocblas_status_invalid_pointer);
    EXPECT_ROCBLAS_STATUS(
        (rocblas_rot_strided_batched_fn(
            handle, N, dx, incx, stride_x, dy, incy, stride_y, nullptr, ds, batch_count)),
        rocblas_status_invalid_pointer);
    EXPECT_ROCBLAS_STATUS(
        (rocblas_rot_strided_batched_fn(
            handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, nullptr, batch_count)),
        rocblas_status_invalid_pointer);
}

template <typename T, typename U = T, typename V = T>
void testing_rot_strided_batched(const Arguments& arg)
{
    auto rocblas_rot_strided_batched_fn = arg.api == FORTRAN
                                              ? rocblas_rot_strided_batched<T, U, V, true>
                                              : rocblas_rot_strided_batched<T, U, V, false>;

    rocblas_int N           = arg.N;
    rocblas_int incx        = arg.incx;
    rocblas_int stride_x    = arg.stride_x;
    rocblas_int stride_y    = arg.stride_y;
    rocblas_int incy        = arg.incy;
    rocblas_int batch_count = arg.batch_count;

    rocblas_local_handle handle{arg};
    double               gpu_time_used, cpu_time_used;
    double norm_error_host_x = 0.0, norm_error_host_y = 0.0, norm_error_device_x = 0.0,
           norm_error_device_y = 0.0;

    // check to prevent undefined memory allocation error
    if(N <= 0 || batch_count <= 0)
    {
        CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));
        EXPECT_ROCBLAS_STATUS((rocblas_rot_strided_batched_fn)(handle,
                                                               N,
                                                               nullptr,
                                                               incx,
                                                               stride_x,
                                                               nullptr,
                                                               incy,
                                                               stride_y,
                                                               nullptr,
                                                               nullptr,
                                                               batch_count),
                              rocblas_status_success);
        return;
    }

    // Naming: `h` is in CPU (host) memory(eg hx), `d` is in GPU (device) memory (eg dx).
    // Allocate host memory
    host_strided_batch_vector<T> hx(N, incx, stride_x, batch_count);
    host_strided_batch_vector<T> hy(N, incy, stride_y, batch_count);
    host_vector<U>               hc(1);
    host_vector<V>               hs(1);

    // Check host memory allocation
    CHECK_HIP_ERROR(hx.memcheck());
    CHECK_HIP_ERROR(hy.memcheck());

    // Allocate device memory
    device_strided_batch_vector<T> dx(N, incx, stride_x, batch_count);
    device_strided_batch_vector<T> dy(N, incy, stride_y, batch_count);
    device_vector<U>               dc(1, 1);
    device_vector<V>               ds(1, 1);

    // Check device memory allocation
    CHECK_DEVICE_ALLOCATION(dx.memcheck());
    CHECK_DEVICE_ALLOCATION(dy.memcheck());
    CHECK_DEVICE_ALLOCATION(dc.memcheck());
    CHECK_DEVICE_ALLOCATION(ds.memcheck());

    // Initialize data on host memory
    rocblas_init_vector(hx, arg, rocblas_client_alpha_sets_nan, true);
    rocblas_init_vector(hy, arg, rocblas_client_alpha_sets_nan, false);
    rocblas_init_vector(hc, arg, rocblas_client_alpha_sets_nan, false);
    rocblas_init_vector(hs, arg, rocblas_client_alpha_sets_nan, false);

    // CPU BLAS reference data
    host_strided_batch_vector<T> hx_gold(N, incx, stride_x, batch_count);
    host_strided_batch_vector<T> hy_gold(N, incy, stride_y, batch_count);
    hx_gold.copy_from(hx);
    hy_gold.copy_from(hy);

    if(arg.unit_check || arg.norm_check)
    {
        if(arg.pointer_mode_host)
        {
            CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_host));

            CHECK_HIP_ERROR(dx.transfer_from(hx));
            CHECK_HIP_ERROR(dy.transfer_from(hy));
            handle.pre_test(arg);
            CHECK_ROCBLAS_ERROR((rocblas_rot_strided_batched_fn(
                handle, N, dx, incx, stride_x, dy, incy, stride_y, hc, hs, batch_count)));
            handle.post_test(arg);

            CHECK_HIP_ERROR(hx.transfer_from(dx));
            CHECK_HIP_ERROR(hy.transfer_from(dy));
        }
        if(arg.pointer_mode_device)
        {
            CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));

            CHECK_HIP_ERROR(dx.transfer_from(hx_gold));
            CHECK_HIP_ERROR(dy.transfer_from(hy_gold));
            CHECK_HIP_ERROR(dc.transfer_from(hc));
            CHECK_HIP_ERROR(ds.transfer_from(hs));
            handle.pre_test(arg);
            CHECK_ROCBLAS_ERROR((rocblas_rot_strided_batched_fn(
                handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count)));
            handle.post_test(arg);
        }

        cpu_time_used = get_time_us_no_sync();
        for(int b = 0; b < batch_count; b++)
        {
            cblas_rot<T, T, U, V>(N, hx_gold[b], incx, hy_gold[b], incy, hc, hs);
        }
        cpu_time_used = get_time_us_no_sync() - cpu_time_used;

        if(arg.pointer_mode_host)
        {
            if(arg.unit_check)
            {
                unit_check_general<T>(1, N, incx, stride_x, hx_gold, hx, batch_count);
                unit_check_general<T>(1, N, incy, stride_y, hy_gold, hy, batch_count);
            }
            if(arg.norm_check)
            {
                norm_error_host_x
                    = norm_check_general<T>('F', 1, N, incx, stride_x, hx_gold, hx, batch_count);
                norm_error_host_y
                    = norm_check_general<T>('F', 1, N, incy, stride_x, hy_gold, hy, batch_count);
            }
        }

        if(arg.pointer_mode_device)
        {
            CHECK_HIP_ERROR(hx.transfer_from(dx));
            CHECK_HIP_ERROR(hy.transfer_from(dy));

            if(arg.unit_check)
            {
                unit_check_general<T>(1, N, incx, stride_x, hx_gold, hx, batch_count);
                unit_check_general<T>(1, N, incy, stride_y, hy_gold, hy, batch_count);
            }
            if(arg.norm_check)
            {
                norm_error_device_x
                    = norm_check_general<T>('F', 1, N, incx, stride_x, hx_gold, hx, batch_count);
                norm_error_device_y
                    = norm_check_general<T>('F', 1, N, incy, stride_y, hy_gold, hy, batch_count);
            }
        }
    }

    if(arg.timing)
    {
        int number_cold_calls = arg.cold_iters;
        int number_hot_calls  = arg.iters;
        CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));

        CHECK_HIP_ERROR(dx.transfer_from(hx));
        CHECK_HIP_ERROR(dy.transfer_from(hy));
        CHECK_HIP_ERROR(dc.transfer_from(hc));
        CHECK_HIP_ERROR(ds.transfer_from(hs));

        for(int iter = 0; iter < number_cold_calls; iter++)
        {
            rocblas_rot_strided_batched_fn(
                handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count);
        }
        hipStream_t stream;
        CHECK_ROCBLAS_ERROR(rocblas_get_stream(handle, &stream));
        gpu_time_used = get_time_us_sync(stream); // in microseconds
        for(int iter = 0; iter < number_hot_calls; iter++)
        {
            rocblas_rot_strided_batched_fn(
                handle, N, dx, incx, stride_x, dy, incy, stride_y, dc, ds, batch_count);
        }
        gpu_time_used = (get_time_us_sync(stream) - gpu_time_used);

        ArgumentModel<e_N, e_incx, e_incy, e_stride_x, e_stride_y, e_batch_count>{}.log_args<T>(
            rocblas_cout,
            arg,
            gpu_time_used,
            rot_gflop_count<T, T, U, V>(N),
            rot_gbyte_count<T>(N),
            cpu_time_used,
            norm_error_host_x,
            norm_error_device_x,
            norm_error_host_y,
            norm_error_device_y);
    }
}
