/* ************************************************************************
 * Copyright (C) 2016-2024 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 "int64_helpers.hpp"
#include "logging.hpp"
#include "rocblas_trsv.hpp"
#include "utility.hpp"

namespace
{
    template <typename>
    constexpr char rocblas_trsv_name[] = "unknown";
    template <>
    constexpr char rocblas_trsv_name<float>[] = ROCBLAS_API_STR(rocblas_strsv);
    template <>
    constexpr char rocblas_trsv_name<double>[] = ROCBLAS_API_STR(rocblas_dtrsv);
    template <>
    constexpr char rocblas_trsv_name<rocblas_float_complex>[] = ROCBLAS_API_STR(rocblas_ctrsv);
    template <>
    constexpr char rocblas_trsv_name<rocblas_double_complex>[] = ROCBLAS_API_STR(rocblas_ztrsv);

    template <typename API_INT, typename T>
    rocblas_status rocblas_trsv_impl(rocblas_handle    handle,
                                     rocblas_fill      uplo,
                                     rocblas_operation transA,
                                     rocblas_diagonal  diag,
                                     API_INT           n,
                                     const T*          A,
                                     API_INT           lda,
                                     T*                B,
                                     API_INT           incx,
                                     const T*          supplied_invA      = nullptr,
                                     rocblas_int       supplied_invA_size = 0)
    {
        if(!handle)
            return rocblas_status_invalid_handle;

        auto   layer_mode = handle->layer_mode;
        Logger logger;

        if(layer_mode & rocblas_layer_mode_log_trace)
            logger.log_trace(handle, rocblas_trsv_name<T>, uplo, transA, diag, n, A, lda, B, incx);

        if(!handle->is_device_memory_size_query())
        {
            if(layer_mode & (rocblas_layer_mode_log_bench | rocblas_layer_mode_log_profile))
            {
                auto uplo_letter   = rocblas_fill_letter(uplo);
                auto transA_letter = rocblas_transpose_letter(transA);
                auto diag_letter   = rocblas_diag_letter(diag);

                if(layer_mode & rocblas_layer_mode_log_bench)
                {
                    if(handle->pointer_mode == rocblas_pointer_mode_host) // TODO log both modes
                        logger.log_bench(handle,
                                         ROCBLAS_API_BENCH " -f trsv -r",
                                         rocblas_precision_string<T>,
                                         "--uplo",
                                         uplo_letter,
                                         "--transposeA",
                                         transA_letter,
                                         "--diag",
                                         diag_letter,
                                         "-n",
                                         n,
                                         "--lda",
                                         lda,
                                         "--incx",
                                         incx);
                }

                if(layer_mode & rocblas_layer_mode_log_profile)
                    logger.log_profile(handle,
                                       rocblas_trsv_name<T>,
                                       "uplo",
                                       uplo_letter,
                                       "transA",
                                       transA_letter,
                                       "diag",
                                       diag_letter,
                                       "N",
                                       n,
                                       "lda",
                                       lda,
                                       "incx",
                                       incx);
            }
        }

        size_t         dev_bytes;
        rocblas_status arg_status = rocblas_trsv_arg_check<API_INT>(
            handle, uplo, transA, diag, n, A, lda, B, incx, 1, dev_bytes);
        if(arg_status != rocblas_status_continue)
            return arg_status;

        auto w_mem = handle->device_malloc(dev_bytes);
        if(!w_mem)
            return rocblas_status_memory_error;

        auto w_completed_sec = w_mem[0];

        auto check_numerics = handle->check_numerics;

        if(check_numerics)
        {
            bool           is_input = true;
            rocblas_status trsv_check_numerics_status
                = rocblas_internal_trsv_check_numerics(rocblas_trsv_name<T>,
                                                       handle,
                                                       uplo,
                                                       n,
                                                       A,
                                                       0,
                                                       lda,
                                                       0,
                                                       B,
                                                       0,
                                                       incx,
                                                       0,
                                                       1,
                                                       check_numerics,
                                                       is_input);
            if(trsv_check_numerics_status != rocblas_status_success)
                return trsv_check_numerics_status;
        }

        rocblas_status status
            = ROCBLAS_API(rocblas_internal_trsv_template)(handle,
                                                          uplo,
                                                          transA,
                                                          diag,
                                                          n,
                                                          A,
                                                          0,
                                                          lda,
                                                          0,
                                                          B,
                                                          0,
                                                          incx,
                                                          0,
                                                          1,
                                                          (rocblas_int*)w_completed_sec);

        if(status != rocblas_status_success)
            return status;

        if(check_numerics)
        {
            bool           is_input = false;
            rocblas_status trsv_check_numerics_status
                = rocblas_internal_trsv_check_numerics(rocblas_trsv_name<T>,
                                                       handle,
                                                       uplo,
                                                       n,
                                                       A,
                                                       0,
                                                       lda,
                                                       0,
                                                       B,
                                                       0,
                                                       incx,
                                                       0,
                                                       1,
                                                       check_numerics,
                                                       is_input);
            if(trsv_check_numerics_status != rocblas_status_success)
                return trsv_check_numerics_status;
        }
        return status;
    }

} // namespace

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

#ifdef IMPL
#error IMPL ALREADY DEFINED
#endif

#define IMPL(routine_name_, TI_, T_)                                                   \
    rocblas_status routine_name_(rocblas_handle    handle,                             \
                                 rocblas_fill      uplo,                               \
                                 rocblas_operation transA,                             \
                                 rocblas_diagonal  diag,                               \
                                 TI_               n,                                  \
                                 const T_*         A,                                  \
                                 TI_               lda,                                \
                                 T_*               x,                                  \
                                 TI_               incx)                               \
    try                                                                                \
    {                                                                                  \
        return rocblas_trsv_impl<TI_>(handle, uplo, transA, diag, n, A, lda, x, incx); \
    }                                                                                  \
    catch(...)                                                                         \
    {                                                                                  \
        return exception_to_rocblas_status();                                          \
    }

#define INST_TRSV_C_API(TI_)                                       \
    extern "C" {                                                   \
    IMPL(ROCBLAS_API(rocblas_strsv), TI_, float);                  \
    IMPL(ROCBLAS_API(rocblas_dtrsv), TI_, double);                 \
    IMPL(ROCBLAS_API(rocblas_ctrsv), TI_, rocblas_float_complex);  \
    IMPL(ROCBLAS_API(rocblas_ztrsv), TI_, rocblas_double_complex); \
    } // extern "C"
