/* Copyright (c) 2014, 2021, Oracle and/or its affiliates.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License, version 2.0, for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */

#include "sql/dd/impl/types/column_type_element_impl.h"

#include <assert.h>
#include <stdio.h>
#include <string.h>

#include "my_rapidjson_size_t.h"  // IWYU pragma: keep

#include <rapidjson/document.h>
#include <rapidjson/prettywriter.h>

#include "m_ctype.h"
#include "m_string.h"

#include "my_inttypes.h"
#include "my_sys.h"
#include "mysqld_error.h"                // ER_*
#include "sql/dd/impl/raw/raw_record.h"  // Raw_record
#include "sql/dd/impl/sdi_impl.h"        // sdi read/write functions
#include "sql/dd/impl/tables/column_type_elements.h"  // Column_type_elements
#include "sql/dd/impl/transaction_impl.h"   // Open_dictionary_tables_ctx
#include "sql/dd/impl/types/column_impl.h"  // Column_impl
#include "sql/dd/types/object_table.h"
#include "sql/dd/types/weak_object.h"
#include "sql/dd_table_share.h"  // dd_get_mysql_charset
#include "sql/sql_const.h"       // MAX_INTERVAL_VALUE_LENGTH

namespace dd {
class Column;
class Object_key;
class Sdi_rcontext;
class Sdi_wcontext;
class Entity_object_impl;
}  // namespace dd

using dd::tables::Column_type_elements;

namespace dd {

///////////////////////////////////////////////////////////////////////////
// Column_type_element_impl implementation.
///////////////////////////////////////////////////////////////////////////

const Column &Column_type_element_impl::column() const { return *m_column; }

bool Column_type_element_impl::validate() const {
  if (!m_column) {
    my_error(ER_INVALID_DD_OBJECT, MYF(0), DD_table::instance().name().c_str(),
             "No column associated with this object.");
    return true;
  }

  const CHARSET_INFO *cs = dd_get_mysql_charset(m_column->collation_id());
  assert(cs);
  const char *cstr = m_name.c_str();

  if (cs->cset->numchars(cs, cstr, cstr + m_name.size()) >
      MAX_INTERVAL_VALUE_LENGTH) {
    my_error(ER_TOO_LONG_SET_ENUM_VALUE, MYF(0), m_column->name().c_str());
    return true;
  }

  return false;
}

///////////////////////////////////////////////////////////////////////////

bool Column_type_element_impl::restore_attributes(const Raw_record &r) {
  // Must resolve ambiguity by static cast.
  if (check_parent_consistency(
          static_cast<Entity_object_impl *>(m_column),
          r.read_ref_id(Column_type_elements::FIELD_COLUMN_ID)))
    return true;

  m_index = r.read_uint(Column_type_elements::FIELD_ELEMENT_INDEX);
  m_name = r.read_str(Column_type_elements::FIELD_NAME);

  return false;
}

///////////////////////////////////////////////////////////////////////////

bool Column_type_element_impl::store_attributes(Raw_record *r) {
  return r->store(Column_type_elements::FIELD_COLUMN_ID, m_column->id()) ||
         r->store(Column_type_elements::FIELD_ELEMENT_INDEX, m_index) ||
         r->store(Column_type_elements::FIELD_NAME, m_name);
}

///////////////////////////////////////////////////////////////////////////

static_assert(Column_type_elements::NUMBER_OF_FIELDS == 3,
              "Column_type_elements definition has changed, check if "
              "serialize() and deserialize() need to be updated!");
void Column_type_element_impl::serialize(Sdi_wcontext *wctx,
                                         Sdi_writer *w) const {
  w->StartObject();
  // Binary value (VARBINARY)
  write_binary(wctx, w, m_name, STRING_WITH_LEN("name"));
  write(w, m_index, STRING_WITH_LEN("index"));
  w->EndObject();
}

///////////////////////////////////////////////////////////////////////////

bool Column_type_element_impl::deserialize(Sdi_rcontext *rctx,
                                           const RJ_Value &val) {
  read_binary(rctx, &m_name, val, "name");
  read(&m_index, val, "index");
  return false;
}

///////////////////////////////////////////////////////////////////////////

void Column_type_element_impl::debug_print(String_type &outb) const {
  char outbuf[1024];
  sprintf(outbuf,
          "%s: "
          "name=%s, column_id={OID: %lld}, ordinal_position= %u",
          object_table().name().c_str(), m_name.c_str(), m_column->id(),
          m_index);
  outb = String_type(outbuf);
}

///////////////////////////////////////////////////////////////////////////

Object_key *Column_type_element_impl::create_primary_key() const {
  return Column_type_elements::create_primary_key(m_column->id(), m_index);
}

bool Column_type_element_impl::has_new_primary_key() const {
  return m_column->has_new_primary_key();
}

///////////////////////////////////////////////////////////////////////////

Column_type_element_impl::Column_type_element_impl(
    const Column_type_element_impl &src, Column_impl *parent)
    : Weak_object(src),
      m_name(src.m_name),
      m_index(src.m_index),
      m_column(parent) {}

///////////////////////////////////////////////////////////////////////////

const Object_table &Column_type_element_impl::object_table() const {
  return DD_table::instance();
}

///////////////////////////////////////////////////////////////////////////

void Column_type_element_impl::register_tables(
    Open_dictionary_tables_ctx *otx) {
  otx->add_table<Column_type_elements>();
}

///////////////////////////////////////////////////////////////////////////
}  // namespace dd
