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using Microsoft.Extensions.Logging;

using Microsoft.Extensions.Logging.Abstractions;

namespace Npgsql;

/// <summary>

/// Configures Npgsql logging

/// </summary>

public class NpgsqlLoggingConfiguration

{

internal static readonly NpgsqlLoggingConfiguration NullConfiguration

= new(NullLoggerFactory.Instance, isParameterLoggingEnabled: false);

internal static ILoggerFactory GlobalLoggerFactory = NullLoggerFactory.Instance;

internal static bool GlobalIsParameterLoggingEnabled;

internal NpgsqlLoggingConfiguration(ILoggerFactory loggerFactory, bool isParameterLoggingEnabled)

{

ConnectionLogger = loggerFactory.CreateLogger("Npgsql.Connection");

CommandLogger = loggerFactory.CreateLogger("Npgsql.Command");

TransactionLogger = loggerFactory.CreateLogger("Npgsql.Transaction");

CopyLogger = loggerFactory.CreateLogger("Npgsql.Copy");

ReplicationLogger = loggerFactory.CreateLogger("Npgsql.Replication");

ExceptionLogger = loggerFactory.CreateLogger("Npgsql.Exception");

IsParameterLoggingEnabled = isParameterLoggingEnabled;

}

internal ILogger ConnectionLogger { get; }

internal ILogger CommandLogger { get; }

internal ILogger TransactionLogger { get; }

internal ILogger CopyLogger { get; }

internal ILogger ReplicationLogger { get; }

internal ILogger ExceptionLogger { get; }

/// <summary>

/// Determines whether parameter contents will be logged alongside SQL statements - this may reveal sensitive information.

/// Defaults to false.

/// </summary>

internal bool IsParameterLoggingEnabled { get; }

/// <summary>

/// <para>

/// Globally initializes Npgsql logging to use the provided <paramref name="loggerFactory" />.

/// Must be called before any Npgsql APIs are used.

/// </para>

/// <para>

/// This is a legacy-only, backwards compatibility API. New applications should set the logger factory on

/// <see cref="NpgsqlDataSourceBuilder" /> and use the resulting <see cref="NpgsqlDataSource "/> instead.

/// </para>

/// </summary>

/// <param name="loggerFactory">The logging factory to use when logging from Npgsql.</param>

/// <param name="parameterLoggingEnabled">

/// Determines whether parameter contents will be logged alongside SQL statements - this may reveal sensitive information.

/// Defaults to <see langword="false" />.

/// </param>

public static void InitializeLogging(ILoggerFactory loggerFactory, bool parameterLoggingEnabled = false)

=> (GlobalLoggerFactory, GlobalIsParameterLoggingEnabled) = (loggerFactory, parameterLoggingEnabled);

}