/* ************************************************************************
 * Copyright (C) 2018-2024 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 "testing_common.hpp"

template <typename T, bool CONJ>
void testing_ger_strided_batched_bad_arg(const Arguments& arg)
{
    auto rocblas_ger_strided_batched_fn
        = arg.api & c_API_FORTRAN ? (CONJ ? rocblas_ger_strided_batched<T, true, true>
                                          : rocblas_ger_strided_batched<T, false, true>)
                                  : (CONJ ? rocblas_ger_strided_batched<T, true, false>
                                          : rocblas_ger_strided_batched<T, false, false>);
    auto rocblas_ger_strided_batched_fn_64
        = arg.api & c_API_FORTRAN ? (CONJ ? rocblas_ger_strided_batched_64<T, true, true>
                                          : rocblas_ger_strided_batched_64<T, false, true>)
                                  : (CONJ ? rocblas_ger_strided_batched_64<T, true, false>
                                          : rocblas_ger_strided_batched_64<T, false, false>);

    for(auto pointer_mode : {rocblas_pointer_mode_host, rocblas_pointer_mode_device})
    {
        rocblas_local_handle handle{arg};
        CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, pointer_mode));

        int64_t M           = 100;
        int64_t N           = 100;
        int64_t incx        = 1;
        int64_t incy        = 1;
        int64_t lda         = 100;
        int64_t stride_a    = lda * N;
        int64_t abs_incx    = incx >= 0 ? incx : -incx;
        int64_t abs_incy    = incy >= 0 ? incy : -incy;
        int64_t stride_x    = abs_incx * M;
        int64_t stride_y    = abs_incy * N;
        int64_t batch_count = 5;

        device_vector<T> alpha_d(1), zero_d(1);

        const T alpha_h(1), zero_h(0);

        const T* alpha = &alpha_h;
        const T* zero  = &zero_h;

        if(pointer_mode == rocblas_pointer_mode_device)
        {
            CHECK_HIP_ERROR(hipMemcpy(alpha_d, alpha, sizeof(*alpha), hipMemcpyHostToDevice));
            alpha = alpha_d;
            CHECK_HIP_ERROR(hipMemcpy(zero_d, zero, sizeof(*zero), hipMemcpyHostToDevice));
            zero = zero_d;
        }

        // Allocate device memory
        device_strided_batch_matrix<T> dA(M, N, lda, stride_a, batch_count);
        device_strided_batch_vector<T> dx(M, incx, stride_x, batch_count);
        device_strided_batch_vector<T> dy(N, incy, stride_y, batch_count);

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

        DAPI_EXPECT(rocblas_status_invalid_handle,
                    rocblas_ger_strided_batched_fn,
                    (nullptr,
                     M,
                     N,
                     alpha,
                     dx,
                     incx,
                     stride_x,
                     dy,
                     incy,
                     stride_y,
                     dA,
                     lda,
                     stride_a,
                     batch_count));

        DAPI_EXPECT(rocblas_status_invalid_pointer,
                    rocblas_ger_strided_batched_fn,
                    (handle,
                     M,
                     N,
                     nullptr,
                     dx,
                     incx,
                     stride_x,
                     dy,
                     incy,
                     stride_y,
                     dA,
                     lda,
                     stride_a,
                     batch_count));

        if(pointer_mode == rocblas_pointer_mode_host)
        {
            DAPI_EXPECT(rocblas_status_invalid_pointer,
                        rocblas_ger_strided_batched_fn,
                        (handle,
                         M,
                         N,
                         alpha,
                         nullptr,
                         incx,
                         stride_x,
                         dy,
                         incy,
                         stride_y,
                         dA,
                         lda,
                         stride_a,
                         batch_count));

            DAPI_EXPECT(rocblas_status_invalid_pointer,
                        rocblas_ger_strided_batched_fn,
                        (handle,
                         M,
                         N,
                         alpha,
                         dx,
                         incx,
                         stride_x,
                         nullptr,
                         incy,
                         stride_y,
                         dA,
                         lda,
                         stride_a,
                         batch_count));

            DAPI_EXPECT(rocblas_status_invalid_pointer,
                        rocblas_ger_strided_batched_fn,
                        (handle,
                         M,
                         N,
                         alpha,
                         dx,
                         incx,
                         stride_x,
                         dy,
                         incy,
                         stride_y,
                         nullptr,
                         lda,
                         stride_a,
                         batch_count));
        }

        // M==0 all pointers may be null
        DAPI_CHECK(rocblas_ger_strided_batched_fn,
                   (handle,
                    0,
                    N,
                    nullptr,
                    nullptr,
                    incx,
                    stride_x,
                    nullptr,
                    incy,
                    stride_y,
                    nullptr,
                    lda,
                    stride_a,
                    batch_count));

        // N==0 all pointers may be null
        DAPI_CHECK(rocblas_ger_strided_batched_fn,
                   (handle,
                    M,
                    0,
                    nullptr,
                    nullptr,
                    incx,
                    stride_x,
                    nullptr,
                    incy,
                    stride_y,
                    nullptr,
                    lda,
                    stride_a,
                    batch_count));

        // batch_count==0 all pointers may be null
        DAPI_CHECK(rocblas_ger_strided_batched_fn,
                   (handle,
                    M,
                    N,
                    nullptr,
                    nullptr,
                    incx,
                    stride_x,
                    nullptr,
                    incy,
                    stride_y,
                    nullptr,
                    lda,
                    stride_a,
                    0));

        // alpha==0 all pointers may be null
        DAPI_CHECK(rocblas_ger_strided_batched_fn,
                   (handle,
                    M,
                    N,
                    zero,
                    nullptr,
                    incx,
                    stride_x,
                    nullptr,
                    incy,
                    stride_y,
                    nullptr,
                    lda,
                    stride_a,
                    batch_count));
    }
}

template <typename T, bool CONJ>
void testing_ger_strided_batched(const Arguments& arg)
{
    auto rocblas_ger_strided_batched_fn
        = arg.api & c_API_FORTRAN ? (CONJ ? rocblas_ger_strided_batched<T, true, true>
                                          : rocblas_ger_strided_batched<T, false, true>)
                                  : (CONJ ? rocblas_ger_strided_batched<T, true, false>
                                          : rocblas_ger_strided_batched<T, false, false>);
    auto rocblas_ger_strided_batched_fn_64
        = arg.api & c_API_FORTRAN ? (CONJ ? rocblas_ger_strided_batched_64<T, true, true>
                                          : rocblas_ger_strided_batched_64<T, false, true>)
                                  : (CONJ ? rocblas_ger_strided_batched_64<T, true, false>
                                          : rocblas_ger_strided_batched_64<T, false, false>);

    int64_t M           = arg.M;
    int64_t N           = arg.N;
    int64_t incx        = arg.incx;
    int64_t incy        = arg.incy;
    int64_t lda         = arg.lda;
    T       h_alpha     = arg.get_alpha<T>();
    int64_t stride_x    = arg.stride_x;
    int64_t stride_y    = arg.stride_y;
    int64_t stride_a    = arg.stride_a;
    int64_t batch_count = arg.batch_count;

    rocblas_local_handle handle{arg};

    // argument check before allocating invalid memory
    bool invalid_size = M < 0 || N < 0 || lda < M || lda < 1 || !incx || !incy || batch_count < 0;
    if(invalid_size || !M || !N || !batch_count)
    {
        DAPI_EXPECT(invalid_size || batch_count < 0 ? rocblas_status_invalid_size
                                                    : rocblas_status_success,
                    rocblas_ger_strided_batched_fn,
                    (handle,
                     M,
                     N,
                     nullptr,
                     nullptr,
                     incx,
                     stride_x,
                     nullptr,
                     incy,
                     stride_y,
                     nullptr,
                     lda,
                     stride_a,
                     batch_count));

        return;
    }

    // Naming: `h` is in CPU (host) memory(eg hA), `d` is in GPU (device) memory (eg dA).
    // Allocate host memory
    host_strided_batch_matrix<T> hA(M, N, lda, stride_a, batch_count);
    host_strided_batch_matrix<T> hA_gold(M, N, lda, stride_a, batch_count);
    host_strided_batch_vector<T> hx(M, incx, stride_x, batch_count);
    host_strided_batch_vector<T> hy(N, incy, stride_y, batch_count);
    host_vector<T>               halpha(1);
    halpha[0] = h_alpha;

    // Check host memory allocation
    CHECK_HIP_ERROR(hA.memcheck());
    CHECK_HIP_ERROR(hA_gold.memcheck());

    // Allocate device memory
    device_strided_batch_matrix<T> dA(M, N, lda, stride_a, batch_count);
    device_strided_batch_vector<T> dx(M, incx, stride_x, batch_count);
    device_strided_batch_vector<T> dy(N, incy, stride_y, batch_count);
    device_vector<T>               d_alpha(1);

    // Check device memory allocation
    CHECK_DEVICE_ALLOCATION(dA.memcheck());
    CHECK_DEVICE_ALLOCATION(dx.memcheck());
    CHECK_DEVICE_ALLOCATION(dy.memcheck());
    CHECK_DEVICE_ALLOCATION(d_alpha.memcheck());

    // Initialize data on host memory
    rocblas_init_matrix(hA, arg, rocblas_client_never_set_nan, rocblas_client_general_matrix, true);
    rocblas_init_vector(hx, arg, rocblas_client_alpha_sets_nan, false, true);
    rocblas_init_vector(hy, arg, rocblas_client_alpha_sets_nan);

    // Copy matrix
    hA_gold.copy_from(hA);

    // copy data from CPU to device
    CHECK_HIP_ERROR(dA.transfer_from(hA));
    CHECK_HIP_ERROR(dx.transfer_from(hx));
    CHECK_HIP_ERROR(dy.transfer_from(hy));

    double cpu_time_used;
    double rocblas_error_host;
    double rocblas_error_device;

    if(arg.unit_check || arg.norm_check)
    {
        if(arg.pointer_mode_host)
        {
            CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_host));
            handle.pre_test(arg);
            DAPI_CHECK(rocblas_ger_strided_batched_fn,
                       (handle,
                        M,
                        N,
                        &h_alpha,
                        dx,
                        incx,
                        stride_x,
                        dy,
                        incy,
                        stride_y,
                        dA,
                        lda,
                        stride_a,
                        batch_count));
            handle.post_test(arg);

            // Transfer output from device to CPU
            CHECK_HIP_ERROR(hA.transfer_from(dA));
        }

        if(arg.pointer_mode_device)
        {
            CHECK_HIP_ERROR(d_alpha.transfer_from(halpha));
            CHECK_HIP_ERROR(dA.transfer_from(hA_gold)); // gold still original hA
            CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_device));
            handle.pre_test(arg);
            DAPI_CHECK(rocblas_ger_strided_batched_fn,
                       (handle,
                        M,
                        N,
                        d_alpha,
                        dx,
                        incx,
                        stride_x,
                        dy,
                        incy,
                        stride_y,
                        dA,
                        lda,
                        stride_a,
                        batch_count));
            handle.post_test(arg);

            if(arg.repeatability_check)
            {
                host_strided_batch_matrix<T> hA_copy(M, N, lda, stride_a, batch_count);
                CHECK_HIP_ERROR(hA_copy.memcheck());
                CHECK_HIP_ERROR(hA.transfer_from(dA));

                // multi-GPU support
                int device_id, device_count;
                CHECK_HIP_ERROR(hipGetDeviceCount(&device_count));
                for(int dev_id = 0; dev_id < device_count; dev_id++)
                {
                    CHECK_HIP_ERROR(hipGetDevice(&device_id));
                    if(device_id != dev_id)
                        CHECK_HIP_ERROR(hipSetDevice(dev_id));

                    //New rocblas handle for new device
                    rocblas_local_handle handle_copy{arg};
                    // Allocate device memory in new device
                    device_strided_batch_matrix<T> dA_copy(M, N, lda, stride_a, batch_count);
                    device_strided_batch_vector<T> dx_copy(M, incx, stride_x, batch_count);
                    device_strided_batch_vector<T> dy_copy(N, incy, stride_y, batch_count);
                    device_vector<T>               d_alpha_copy(1);

                    // Check device memory allocation
                    CHECK_DEVICE_ALLOCATION(dy_copy.memcheck());
                    CHECK_DEVICE_ALLOCATION(dx_copy.memcheck());
                    CHECK_DEVICE_ALLOCATION(dA_copy.memcheck());
                    CHECK_DEVICE_ALLOCATION(d_alpha_copy.memcheck());

                    CHECK_HIP_ERROR(dx_copy.transfer_from(hx));
                    CHECK_HIP_ERROR(dy_copy.transfer_from(hy));
                    CHECK_HIP_ERROR(d_alpha_copy.transfer_from(halpha));

                    CHECK_ROCBLAS_ERROR(
                        rocblas_set_pointer_mode(handle_copy, rocblas_pointer_mode_device));

                    for(int runs = 0; runs < arg.iters; runs++)
                    {
                        CHECK_HIP_ERROR(dA_copy.transfer_from(hA_gold));
                        DAPI_CHECK(rocblas_ger_strided_batched_fn,
                                   (handle_copy,
                                    M,
                                    N,
                                    d_alpha_copy,
                                    dx_copy,
                                    incx,
                                    stride_x,
                                    dy_copy,
                                    incy,
                                    stride_y,
                                    dA_copy,
                                    lda,
                                    stride_a,
                                    batch_count));
                        CHECK_HIP_ERROR(hA_copy.transfer_from(dA_copy));
                        unit_check_general<T>(M, N, lda, stride_a, hA, hA_copy, batch_count);
                    }
                }
                return;
            }
        }

        // CPU BLAS
        cpu_time_used = get_time_us_no_sync();

        for(size_t b = 0; b < batch_count; ++b)
        {
            ref_ger<T, CONJ>(M, N, h_alpha, hx[b], incx, hy[b], incy, hA_gold[b], lda);
        }

        cpu_time_used = get_time_us_no_sync() - cpu_time_used;

        if(arg.pointer_mode_host)
        {
            if(arg.unit_check)
            {
                if(std::is_same_v<T, float> || std::is_same_v<T, double>)
                {
                    unit_check_general<T>(M, N, lda, stride_a, hA_gold, hA, batch_count);
                }
                else
                {
                    const double tol = N * sum_error_tolerance<T>;
                    near_check_general<T>(M, N, lda, stride_a, hA_gold, hA, batch_count, tol);
                }
            }

            if(arg.norm_check)
            {
                rocblas_error_host
                    = norm_check_general<T>('F', M, N, lda, stride_a, hA_gold, hA, batch_count);
            }
        }

        if(arg.pointer_mode_device)
        {
            CHECK_HIP_ERROR(hA.transfer_from(dA));
            if(arg.unit_check)
            {
                if(std::is_same_v<T, float> || std::is_same_v<T, double>)
                {
                    unit_check_general<T>(M, N, lda, stride_a, hA_gold, hA, batch_count);
                }
                else
                {
                    const double tol = N * sum_error_tolerance<T>;
                    near_check_general<T>(M, N, lda, stride_a, hA_gold, hA, batch_count, tol);
                }
            }

            if(arg.norm_check)
            {
                rocblas_error_device
                    = norm_check_general<T>('F', M, N, lda, stride_a, hA_gold, hA, batch_count);
            }
        }
    }

    if(arg.timing)
    {
        double gpu_time_used;
        int    number_cold_calls = arg.cold_iters;
        int    total_calls       = number_cold_calls + arg.iters;

        CHECK_ROCBLAS_ERROR(rocblas_set_pointer_mode(handle, rocblas_pointer_mode_host));

        hipStream_t stream;
        CHECK_ROCBLAS_ERROR(rocblas_get_stream(handle, &stream));

        for(int iter = 0; iter < total_calls; iter++)
        {
            if(iter == number_cold_calls)
                gpu_time_used = get_time_us_sync(stream);

            DAPI_DISPATCH(rocblas_ger_strided_batched_fn,
                          (handle,
                           M,
                           N,
                           &h_alpha,
                           dx,
                           incx,
                           stride_x,
                           dy,
                           incy,
                           stride_y,
                           dA,
                           lda,
                           stride_a,
                           batch_count));
        }

        gpu_time_used = get_time_us_sync(stream) - gpu_time_used;

        ArgumentModel<e_M,
                      e_N,
                      e_alpha,
                      e_lda,
                      e_stride_a,
                      e_incx,
                      e_stride_x,
                      e_incy,
                      e_stride_y,
                      e_batch_count>{}
            .log_args<T>(rocblas_cout,
                         arg,
                         gpu_time_used,
                         ger_gflop_count<T>(M, N),
                         ger_gbyte_count<T>(M, N),
                         cpu_time_used,
                         rocblas_error_host,
                         rocblas_error_device);
    }
}
