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//
// 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
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using Microsoft.EntityFrameworkCore.Infrastructure;
using MySql.EntityFrameworkCore.Infrastructure.Internal;
using System;
using Microsoft.EntityFrameworkCore;
using System.Reflection;

namespace MySql.EntityFrameworkCore.Extensions
{
  /// <summary>
  ///     MySQL specific extension methods for <see cref="DbContext.Database" />.
  /// </summary>
  public static class MySQLDatabaseFacadeExtensions
  {
    /// <summary>
    ///     <para>
    ///         Returns true if the database provider currently in use is the MySQL provider.
    ///     </para>
    ///     <para>
    ///         This method can only be used after the <see cref="DbContext" /> has been configured because
    ///         it is only then that the provider is known. This means that this method cannot be used
    ///         in <see cref="DbContext.OnConfiguring" /> because this is where application code sets the
    ///         provider to use as part of configuring the context.
    ///     </para>
    /// </summary>
    /// <param name="database"> The facade from <see cref="DbContext.Database" />. </param>
    /// <returns> True if MySQL is being used; false otherwise. </returns>
    public static bool IsMySql([NotNull] this DatabaseFacade database)
        => database.ProviderName.Equals(
            typeof(MySQLOptionsExtension).GetTypeInfo().Assembly.GetName().Name,
            StringComparison.Ordinal);
  }
}
