/*      $NetBSD: prop_ingest.c,v 1.6 2025/04/26 17:13:23 thorpej Exp $  */

/*-
* Copyright (c) 2006 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include "prop_object_impl.h"
#include <prop/proplib.h>

struct _prop_ingest_context {
       prop_ingest_error_t     pic_error;
       prop_type_t             pic_type;
       const char *            pic_key;
       void *                  pic_private;
};

/*
* prop_ingest_context_alloc --
*      Allocate and initialize an ingest context.
*/
_PROP_EXPORT prop_ingest_context_t
prop_ingest_context_alloc(void *xprivate)
{
       prop_ingest_context_t ctx;

       ctx = _PROP_MALLOC(sizeof(*ctx), M_TEMP);
       if (ctx != NULL) {
               ctx->pic_error = PROP_INGEST_ERROR_NO_ERROR;
               ctx->pic_type = PROP_TYPE_UNKNOWN;
               ctx->pic_key = NULL;
               ctx->pic_private = xprivate;
       }
       return (ctx);
}

/*
* prop_ingest_context_free --
*      Free an ingest context.
*/
_PROP_EXPORT void
prop_ingest_context_free(prop_ingest_context_t ctx)
{

       _PROP_FREE(ctx, M_TEMP);
}

/*
* prop_ingest_context_error --
*      Get the error code from an ingest context.
*/
_PROP_EXPORT prop_ingest_error_t
prop_ingest_context_error(prop_ingest_context_t ctx)
{

       return (ctx->pic_error);
}

/*
* prop_ingest_context_type --
*      Return the type of last object visisted by an ingest context.
*/
_PROP_EXPORT prop_type_t
prop_ingest_context_type(prop_ingest_context_t ctx)
{

       return (ctx->pic_type);
}

/*
* prop_ingest_context_key --
*      Return the last key looked up by an ingest context.
*/
_PROP_EXPORT const char *
prop_ingest_context_key(prop_ingest_context_t ctx)
{

       return (ctx->pic_key);
}

/*
* prop_ingest_context_private --
*      Return the caller-private data associated with an ingest context.
*/
_PROP_EXPORT void *
prop_ingest_context_private(prop_ingest_context_t ctx)
{

       return (ctx->pic_private);
}

/*
* prop_dictionary_ingest --
*      Ingest a dictionary using handlers for each object to translate
*      into an arbitrary binary format.
*/
_PROP_EXPORT bool
prop_dictionary_ingest(prop_dictionary_t dict,
                      const prop_ingest_table_entry rules[],
                      prop_ingest_context_t ctx)
{
       const prop_ingest_table_entry *pite;
       prop_object_t obj;

       ctx->pic_error = PROP_INGEST_ERROR_NO_ERROR;

       for (pite = rules; pite->pite_key != NULL; pite++) {
               ctx->pic_key = pite->pite_key;
               obj = prop_dictionary_get(dict, pite->pite_key);
               ctx->pic_type = prop_object_type(obj);
               if (obj == NULL) {
                       if (pite->pite_flags & PROP_INGEST_FLAG_OPTIONAL) {
                               if ((*pite->pite_handler)(ctx, NULL) == false) {
                                       ctx->pic_error =
                                           PROP_INGEST_ERROR_HANDLER_FAILED;
                                       return (false);
                               }
                               continue;
                       }
                       ctx->pic_error = PROP_INGEST_ERROR_NO_KEY;
                       return (false);
               }
               if (ctx->pic_type != pite->pite_type &&
                   pite->pite_type != PROP_TYPE_UNKNOWN) {
                       ctx->pic_error = PROP_INGEST_ERROR_WRONG_TYPE;
                       return (false);
               }
               if ((*pite->pite_handler)(ctx, obj) == false) {
                       ctx->pic_error = PROP_INGEST_ERROR_HANDLER_FAILED;
                       return (false);
               }
       }

       return (true);
}