using Npgsql;

namespace pgLabII.PgUtils.ConnectionStrings;

/// <summary>
/// Canonical, format-agnostic representation of a PostgreSQL connection.
/// Keep minimal fields for broad interoperability; store extras in Properties.
/// </summary>
public sealed class ConnectionDescriptor
{
    // Primary hosts (support multi-host). If empty, implies localhost default.
    public IReadOnlyList<HostEndpoint> Hosts { get; init; } = new List<HostEndpoint>();

    public string? Database { get; init; }
    public string? Username { get; init; }
    public string? Password { get; init; }

    public SslMode? SslMode { get; init; }

    // Common optional fields
    public string? ApplicationName { get; init; }
    public int? TimeoutSeconds { get; init; } // connect_timeout

    // Additional parameters preserved across conversions
    public IReadOnlyDictionary<string, string> Properties { get; init; } =
        new Dictionary<string, string>();
}