/*
 * constructors.c :  Constructors for various data structures.
 *
 * ====================================================================
 *    Licensed to the Apache Software Foundation (ASF) under one
 *    or more contributor license agreements.  See the NOTICE file
 *    distributed with this work for additional information
 *    regarding copyright ownership.  The ASF licenses this file
 *    to you under the Apache License, Version 2.0 (the
 *    "License"); you may not use this file except in compliance
 *    with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing,
 *    software distributed under the License is distributed on an
 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *    KIND, either express or implied.  See the License for the
 *    specific language governing permissions and limitations
 *    under the License.
 * ====================================================================
 */

#include <apr_pools.h>
#include <apr_strings.h>

#include "svn_types.h"
#include "svn_props.h"
#include "svn_string.h"


svn_commit_info_t *
svn_create_commit_info(apr_pool_t *pool)
{
  svn_commit_info_t *commit_info
    = apr_pcalloc(pool, sizeof(*commit_info));

  commit_info->revision = SVN_INVALID_REVNUM;
  /* All other fields were initialized to NULL above. */

  return commit_info;
}

svn_commit_info_t *
svn_commit_info_dup(const svn_commit_info_t *src_commit_info,
                    apr_pool_t *pool)
{
  svn_commit_info_t *dst_commit_info
    = apr_palloc(pool, sizeof(*dst_commit_info));

  dst_commit_info->date = src_commit_info->date
    ? apr_pstrdup(pool, src_commit_info->date) : NULL;
  dst_commit_info->author = src_commit_info->author
    ? apr_pstrdup(pool, src_commit_info->author) : NULL;
  dst_commit_info->revision = src_commit_info->revision;
  dst_commit_info->post_commit_err = src_commit_info->post_commit_err
    ? apr_pstrdup(pool, src_commit_info->post_commit_err) : NULL;
  dst_commit_info->repos_root = src_commit_info->repos_root
    ? apr_pstrdup(pool, src_commit_info->repos_root) : NULL;

  return dst_commit_info;
}

svn_log_changed_path2_t *
svn_log_changed_path2_create(apr_pool_t *pool)
{
  svn_log_changed_path2_t *new_changed_path
    = apr_pcalloc(pool, sizeof(*new_changed_path));

  new_changed_path->text_modified = svn_tristate_unknown;
  new_changed_path->props_modified = svn_tristate_unknown;

  return new_changed_path;
}

svn_log_changed_path2_t *
svn_log_changed_path2_dup(const svn_log_changed_path2_t *changed_path,
                          apr_pool_t *pool)
{
  svn_log_changed_path2_t *new_changed_path
    = apr_palloc(pool, sizeof(*new_changed_path));

  *new_changed_path = *changed_path;

  if (new_changed_path->copyfrom_path)
    new_changed_path->copyfrom_path =
      apr_pstrdup(pool, new_changed_path->copyfrom_path);

  return new_changed_path;
}

/**
 * Reallocate the members of PROP using POOL.
 */
static void
svn_prop__members_dup(svn_prop_t *prop, apr_pool_t *pool)
{
  if (prop->name)
    prop->name = apr_pstrdup(pool, prop->name);
  if (prop->value)
    prop->value = svn_string_dup(prop->value, pool);
}

svn_prop_t *
svn_prop_dup(const svn_prop_t *prop, apr_pool_t *pool)
{
  svn_prop_t *new_prop = apr_palloc(pool, sizeof(*new_prop));

  *new_prop = *prop;

  svn_prop__members_dup(new_prop, pool);

  return new_prop;
}

apr_array_header_t *
svn_prop_array_dup(const apr_array_header_t *array, apr_pool_t *pool)
{
  int i;
  apr_array_header_t *new_array = apr_array_copy(pool, array);
  for (i = 0; i < new_array->nelts; ++i)
    {
      svn_prop_t *elt = &APR_ARRAY_IDX(new_array, i, svn_prop_t);
      svn_prop__members_dup(elt, pool);
    }
  return new_array;
}

apr_array_header_t *
svn_prop_hash_to_array(apr_hash_t *hash, apr_pool_t *pool)
{
  apr_hash_index_t *hi;
  apr_array_header_t *array = apr_array_make(pool, apr_hash_count(hash),
                                             sizeof(svn_prop_t));

  for (hi = apr_hash_first(pool, hash); hi; hi = apr_hash_next(hi))
    {
      const void *key;
      void *val;
      svn_prop_t prop;

      apr_hash_this(hi, &key, NULL, &val);
      prop.name = key;
      prop.value = val;
      APR_ARRAY_PUSH(array, svn_prop_t) = prop;
    }

  return array;
}

apr_hash_t *
svn_prop_hash_dup(apr_hash_t *hash,
                  apr_pool_t *pool)
{
  apr_hash_index_t *hi;
  apr_hash_t *new_hash = apr_hash_make(pool);

  for (hi = apr_hash_first(pool, hash); hi; hi = apr_hash_next(hi))
    {
      const void *key;
      apr_ssize_t klen;
      void *prop;

      apr_hash_this(hi, &key, &klen, &prop);
      apr_hash_set(new_hash, apr_pstrdup(pool, key), klen,
                   svn_string_dup(prop, pool));
    }
  return new_hash;
}


svn_dirent_t *
svn_dirent_dup(const svn_dirent_t *dirent,
               apr_pool_t *pool)
{
  svn_dirent_t *new_dirent = apr_palloc(pool, sizeof(*new_dirent));

  *new_dirent = *dirent;

  new_dirent->last_author = apr_pstrdup(pool, dirent->last_author);

  return new_dirent;
}

svn_log_entry_t *
svn_log_entry_create(apr_pool_t *pool)
{
  svn_log_entry_t *log_entry = apr_pcalloc(pool, sizeof(*log_entry));

  return log_entry;
}

svn_log_entry_t *
svn_log_entry_dup(const svn_log_entry_t *log_entry, apr_pool_t *pool)
{
  apr_hash_index_t *hi;
  svn_log_entry_t *new_entry = apr_palloc(pool, sizeof(*new_entry));

  *new_entry = *log_entry;

  if (log_entry->revprops)
    new_entry->revprops = svn_prop_hash_dup(log_entry->revprops, pool);

  if (log_entry->changed_paths2)
    {
      new_entry->changed_paths2 = apr_hash_make(pool);

      for (hi = apr_hash_first(pool, log_entry->changed_paths2);
           hi; hi = apr_hash_next(hi))
        {
          const void *key;
          void *change;

          apr_hash_this(hi, &key, NULL, &change);

          apr_hash_set(new_entry->changed_paths2, apr_pstrdup(pool, key),
                       APR_HASH_KEY_STRING,
                       svn_log_changed_path2_dup(change, pool));
        }
    }

  /* We can't copy changed_paths by itself without using deprecated code,
     but we don't have to, as this function was new after the introduction
     of the changed_paths2 field. */
  new_entry->changed_paths = new_entry->changed_paths2;

  return new_entry;
}

svn_location_segment_t *
svn_location_segment_dup(const svn_location_segment_t *segment,
                         apr_pool_t *pool)
{
  svn_location_segment_t *new_segment =
    apr_palloc(pool, sizeof(*new_segment));

  *new_segment = *segment;
  if (segment->path)
    new_segment->path = apr_pstrdup(pool, segment->path);
  return new_segment;
}