// Copyright (c) 2017, 2020 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
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// 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.
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// Without limiting anything contained in the foregoing, this file,
// which is part of MySQL Connector/NET, is also subject to the
// Universal FOSS Exception, version 1.0, a copy of which can be found at
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//
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// See the GNU General Public License, version 2.0, for more details.
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using Microsoft.EntityFrameworkCore.Storage;
using System.Data;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using System.Data.Common;

namespace MySql.Data.EntityFrameworkCore.Storage.Internal
{
  /// <summary>
  ///     This is an internal API that supports the Entity Framework Core infrastructure and not subject to
  ///     the same compatibility standards as public APIs. It may be changed or removed without notice in
  ///     any release. You should only use it directly in your code with extreme caution and knowing that
  ///     doing so can result in application failures when updating to a new Entity Framework Core release.
  /// </summary>
  internal class MySQLBinaryTypeMapping : MySQLTypeMapping
  {
    public MySQLBinaryTypeMapping(
      [NotNull] string storeType,
      [CanBeNull] DbType? dbType = System.Data.DbType.Binary,
      int? size = null,
      bool fixedLength = false)
      : base(storeType, typeof(byte[]), dbType, size: size)
    {
    }

    protected MySQLBinaryTypeMapping(RelationalTypeMappingParameters parameters)
      : base(parameters)
    {
    }

    public override CoreTypeMapping Clone(ValueConverter converter)
      => new MySQLBinaryTypeMapping(Parameters.WithComposedConverter(converter));

    protected override RelationalTypeMapping Clone(RelationalTypeMappingParameters parameters)
      => new MySQLBinaryTypeMapping(parameters);

    protected override void ConfigureParameter([NotNull] DbParameter parameter)
    {
      byte[] value = parameter.Value as byte[];
      int? length = value?.Length;

      parameter.Size = length ?? -1;
    }
  }
}