77 lines
2.2 KiB
C#
77 lines
2.2 KiB
C#
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using System.Collections.Generic;
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using FluentResults;
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using Npgsql;
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namespace pgLabII.PgUtils.ConnectionStrings;
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public enum ConnStringFormat
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{
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Libpq,
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Npgsql,
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Url,
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Jdbc
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}
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public sealed class HostEndpoint
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{
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public string Host { get; init; } = string.Empty;
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public ushort? Port { get; init; }
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}
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/// <summary>
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/// Canonical, format-agnostic representation of a PostgreSQL connection.
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/// Keep minimal fields for broad interoperability; store extras in Properties.
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/// </summary>
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public sealed class ConnectionDescriptor
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{
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public string? Name { get; init; }
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// Primary hosts (support multi-host). If empty, implies localhost default.
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public IReadOnlyList<HostEndpoint> Hosts { get; init; } = new List<HostEndpoint>();
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public string? Database { get; init; }
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public string? Username { get; init; }
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public string? Password { get; init; }
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public SslMode? SslMode { get; init; }
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// Common optional fields
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public string? ApplicationName { get; init; }
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public int? TimeoutSeconds { get; init; } // connect_timeout
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// Additional parameters preserved across conversions
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public IReadOnlyDictionary<string, string> Properties { get; init; } =
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new Dictionary<string, string>();
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}
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/// <summary>
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/// Codec for a specific connection string format (parse and format only for its own format).
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/// Do not implement format specifics yet; provide interface only.
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/// </summary>
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public interface IConnectionStringCodec
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{
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ConnStringFormat Format { get; }
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string FormatName { get; }
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// Parse input in this codec's format into a descriptor.
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Result<ConnectionDescriptor> TryParse(string input);
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// Format a descriptor into this codec's format.
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Result<string> TryFormat(ConnectionDescriptor descriptor);
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}
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/// <summary>
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/// High-level service to detect, parse, format and convert between formats.
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/// Implementations will compose specific codecs.
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/// </summary>
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public interface IConnectionStringService
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{
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Result<ConnStringFormat> DetectFormat(string input);
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Result<ConnectionDescriptor> ParseToDescriptor(string input);
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Result<string> FormatFromDescriptor(ConnectionDescriptor descriptor, ConnStringFormat targetFormat);
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Result<string> Convert(string input, ConnStringFormat targetFormat);
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}
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