/*! \file */
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 * Copyright (C) 2020-2026 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
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 * copies 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.
 *
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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_bsrsv.h"
#include "rocsparse_bsrsv.hpp"

#include "rocsparse_control.hpp"
#include "rocsparse_utility.hpp"

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

extern "C" rocsparse_status rocsparse_bsrsv_zero_pivot(rocsparse_handle   handle,
                                                       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(1, info);

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

    // Check pointer arguments
    ROCSPARSE_CHECKARG_POINTER(2, position);

    const auto indextype  = rocsparse::get_indextype<rocsparse_int>();
    auto       bsrsv_info = info->get_bsrsv_info();
    RETURN_IF_ROCSPARSE_ERROR(rocsparse::singularity_get_position_async(
        handle, 1, bsrsv_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;
        }
        return rocsparse_status_success;
    }
    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;
        }
        return rocsparse_status_success;
    }

    case deprecated_rocsparse_indextype_u16:
    {
        RETURN_WITH_MESSAGE_IF_ROCSPARSE_ERROR(rocsparse_status_invalid_value,
                                               "rocsparse_indextype_u16 not supported");
    }
    }
    // LCOV_EXCL_START
    RETURN_IF_ROCSPARSE_ERROR(rocsparse_status_invalid_value);
}
catch(...)
{
    RETURN_ROCSPARSE_EXCEPTION();
}
// LCOV_EXCL_STOP

extern "C" rocsparse_status rocsparse_bsrsv_clear(rocsparse_handle handle, rocsparse_mat_info info)
try
{
    ROCSPARSE_ROUTINE_TRACE;

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

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

    // Clear bsrsv meta data (this includes lower, upper and their transposed equivalents

    info->clear_bsrsv_info();

    return rocsparse_status_success;
    // LCOV_EXCL_START
}
catch(...)
{
    RETURN_ROCSPARSE_EXCEPTION();
}
// LCOV_EXCL_STOP
