/*! \file */
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 * Copyright (C) 2022-2026 Advanced Micro Devices, Inc. All rights Reserved.
 *
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 * of this software and associated documentation files (the "Software"), to deal
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 * 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.
 *
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * THE SOFTWARE.
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#include "internal/level2/rocsparse_csritsv.h"
#include "rocsparse_control.hpp"
#include "rocsparse_csritsv.hpp"
#include "rocsparse_one.hpp"
#include "rocsparse_utility.hpp"

extern "C" rocsparse_status rocsparse_csritsv_zero_pivot(rocsparse_handle          handle,
                                                         const rocsparse_mat_descr descr,
                                                         rocsparse_mat_info        info,
                                                         rocsparse_int*            position)
try
{
    ROCSPARSE_ROUTINE_TRACE;

    // Check for valid handle and matrix descriptor
    ROCSPARSE_CHECKARG_HANDLE(0, handle);
    ROCSPARSE_CHECKARG_POINTER(2, info);

    // Logging
    rocsparse::log_trace(
        handle, "rocsparse_csritsv_zero_pivot", (const void*&)info, (const void*&)position);

    // Check pointer arguments
    ROCSPARSE_CHECKARG_POINTER(3, position);

    // Stream
    auto       csritsv_info = info->csritsv_info;
    const auto indextype    = rocsparse::get_indextype<rocsparse_int>();

    RETURN_IF_ROCSPARSE_ERROR(rocsparse::singularity_get_position_async(
        handle, 1, csritsv_info, nullptr, nullptr, handle->pointer_mode, indextype, position));
    switch(indextype)
    {
    case rocsparse_indextype_i32:
    {
        int32_t p;
        RETURN_IF_HIP_ERROR(rocsparse_hipMemcpyAsync(
            &p, position, sizeof(int32_t), hipMemcpyDefault, handle->stream));
        RETURN_IF_HIP_ERROR(rocsparse_hipStreamSynchronize(handle->stream));
        if(p != -1)
        {
            return rocsparse_status_zero_pivot;
        }
        break;
    }
    case rocsparse_indextype_i64:
    {
        int64_t p;
        RETURN_IF_HIP_ERROR(rocsparse_hipMemcpyAsync(
            &p, position, sizeof(int64_t), hipMemcpyDefault, handle->stream));
        RETURN_IF_HIP_ERROR(rocsparse_hipStreamSynchronize(handle->stream));
        if(p != -1)
        {
            return rocsparse_status_zero_pivot;
        }
        break;
    }

    case deprecated_rocsparse_indextype_u16:
    {
        break;
    }
    }
    return rocsparse_status_success;
    // LCOV_EXCL_START
}
catch(...)
{
    RETURN_ROCSPARSE_EXCEPTION();
}
// LCOV_EXCL_STOP

extern "C" rocsparse_status rocsparse_csritsv_clear(rocsparse_handle          handle,
                                                    const rocsparse_mat_descr descr,
                                                    rocsparse_mat_info        info)
try
{
    ROCSPARSE_ROUTINE_TRACE;

    // Check for valid handle and matrix descriptor
    ROCSPARSE_CHECKARG_HANDLE(0, handle);
    ROCSPARSE_CHECKARG_POINTER(1, descr);
    ROCSPARSE_CHECKARG_POINTER(2, info);

    // Logging
    rocsparse::log_trace(
        handle, "rocsparse_csritsv_clear", (const void*&)descr, (const void*&)info);

    // Clear csritsv meta data (this includes lower, upper and their transposed equivalents
    if(info->csritsv_info != nullptr)
    {
        delete info->csritsv_info;
        info->csritsv_info = nullptr;
    }
    return rocsparse_status_success;
    // LCOV_EXCL_START
}
catch(...)
{
    RETURN_ROCSPARSE_EXCEPTION();
}
// LCOV_EXCL_STOP
