/* ************************************************************************
 * Copyright 2016-2019 Advanced Micro Devices, Inc.
 * ************************************************************************ */
#include "handle.h"
#include "logging.h"
#include "rocblas.h"
#include "rocblas_ger.hpp"
#include "utility.h"

namespace
{
    template <typename>
    constexpr char rocblas_ger_strided_batched_name[] = "unknown";
    template <>
    constexpr char rocblas_ger_strided_batched_name<float>[] = "rocblas_sger_strided_batched";
    template <>
    constexpr char rocblas_ger_strided_batched_name<double>[] = "rocblas_dger_strided_batched";

    template <typename T>
    rocblas_status rocblas_ger_strided_batched_impl(rocblas_handle handle,
                                                    rocblas_int    m,
                                                    rocblas_int    n,
                                                    const T*       alpha,
                                                    const T*       x,
                                                    rocblas_int    incx,
                                                    rocblas_stride stridex,
                                                    const T*       y,
                                                    rocblas_int    incy,
                                                    rocblas_stride stridey,
                                                    T*             A,
                                                    rocblas_int    lda,
                                                    rocblas_stride strideA,
                                                    rocblas_int    batch_count)
    {
        if(!handle)
            return rocblas_status_invalid_handle;
        RETURN_ZERO_DEVICE_MEMORY_SIZE_IF_QUERIED(handle);

        if(!alpha)
            return rocblas_status_invalid_pointer;

        auto layer_mode = handle->layer_mode;
        if(handle->pointer_mode == rocblas_pointer_mode_host)
        {
            if(layer_mode & rocblas_layer_mode_log_trace)
                log_trace(handle,
                          rocblas_ger_strided_batched_name<T>,
                          m,
                          n,
                          *alpha,
                          x,
                          incx,
                          stridex,
                          y,
                          incy,
                          stridey,
                          A,
                          lda,
                          strideA,
                          batch_count);

            if(layer_mode & rocblas_layer_mode_log_bench)
                log_bench(handle,
                          "./rocblas-bench -f ger_strided_batched -r",
                          rocblas_precision_string<T>,
                          "-m",
                          m,
                          "-n",
                          n,
                          "--alpha",
                          *alpha,
                          "--incx",
                          incx,
                          "--stridex",
                          stridex,
                          "--incy",
                          incy,
                          "--stridey",
                          stridey,
                          "--lda",
                          lda,
                          "--strideA",
                          strideA,
                          "--batch_count",
                          batch_count);
        }
        else
        {
            if(layer_mode & rocblas_layer_mode_log_trace)
                log_trace(handle,
                          rocblas_ger_strided_batched_name<T>,
                          m,
                          n,
                          alpha,
                          x,
                          incx,
                          stridex,
                          y,
                          incy,
                          stridey,
                          A,
                          lda,
                          strideA,
                          batch_count);
        }

        if(layer_mode & rocblas_layer_mode_log_profile)
            log_profile(handle,
                        rocblas_ger_strided_batched_name<T>,
                        "M",
                        m,
                        "N",
                        n,
                        "incx",
                        incx,
                        "stridex",
                        stridex,
                        "incy",
                        incy,
                        "stridey",
                        stridey,
                        "lda",
                        lda,
                        "strideA",
                        strideA,
                        "batch_count",
                        batch_count);

        if(!x || !y || !A)
            return rocblas_status_invalid_pointer;

        if(m < 0 || n < 0 || !incx || !incy || lda < m || lda < 1 || batch_count < 0)
            return rocblas_status_invalid_size;

        rocblas_ger_template<T>(handle,
                                m,
                                n,
                                alpha,
                                0,
                                x,
                                0,
                                incx,
                                stridex,
                                y,
                                0,
                                incy,
                                stridey,
                                A,
                                0,
                                lda,
                                strideA,
                                batch_count);

        return rocblas_status_success;
    }

} // namespace

/*
 * ===========================================================================
 *    C wrapper
 * ===========================================================================
 */

extern "C" {

rocblas_status rocblas_sger_strided_batched(rocblas_handle handle,
                                            rocblas_int    m,
                                            rocblas_int    n,
                                            const float*   alpha,
                                            const float*   x,
                                            rocblas_int    incx,
                                            rocblas_stride stridex,
                                            const float*   y,
                                            rocblas_int    incy,
                                            rocblas_stride stridey,
                                            float*         A,
                                            rocblas_int    lda,
                                            rocblas_stride strideA,
                                            rocblas_int    batch_count)
{
    return rocblas_ger_strided_batched_impl(
        handle, m, n, alpha, x, incx, stridex, y, incy, stridey, A, lda, strideA, batch_count);
}

rocblas_status rocblas_dger_strided_batched(rocblas_handle handle,
                                            rocblas_int    m,
                                            rocblas_int    n,
                                            const double*  alpha,
                                            const double*  x,
                                            rocblas_int    incx,
                                            rocblas_stride stridex,
                                            const double*  y,
                                            rocblas_int    incy,
                                            rocblas_stride stridey,
                                            double*        A,
                                            rocblas_int    lda,
                                            rocblas_stride strideA,
                                            rocblas_int    batch_count)
{
    return rocblas_ger_strided_batched_impl(
        handle, m, n, alpha, x, incx, stridex, y, incy, stridey, A, lda, strideA, batch_count);
}

} // extern "C"