using System.ComponentModel.DataAnnotations;

namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client;

/// <summary>
///     Connection options for <c>WonderwareHistorianClient</c>.
/// </summary>
/// <remarks>
///     <para>
///         <b>Retry / backoff ownership (finding 006):</b> this module performs exactly one
///         in-place transport reconnect inside <c>PipeChannel.InvokeAsync</c> with no delay,
///         and does NOT implement exponential reconnect backoff. Broader retry/backoff is the
///         caller's responsibility — the alarm drain worker
///         (<c>Core.AlarmHistorian.SqliteStoreAndForwardSink</c>) and the read-side
///         history router are expected to layer their own backoff on top.
///     </para>
/// </remarks>
/// <param name="PipeName">Named-pipe name the sidecar listens on (matches the sidecar's <c>OTOPCUA_HISTORIAN_PIPE</c>).</param>
/// <param name="SharedSecret">Per-process shared secret the sidecar will verify in the Hello frame.</param>
/// <param name="PeerName">Diagnostic peer identifier sent in Hello — typically the OtOpcUa instance id.</param>
/// <param name="ConnectTimeout">Cap on the named-pipe connect + Hello round trip on each (re)connect.</param>
/// <param name="CallTimeout">Cap on a single read/write call once connected.</param>
public sealed record WonderwareHistorianClientOptions(
    string PipeName,
    string SharedSecret,
    string PeerName = "OtOpcUa",
    TimeSpan? ConnectTimeout = null,
    TimeSpan? CallTimeout = null)
{
    /// <summary>Gets the effective connect timeout, using the default if not explicitly set.</summary>
    public TimeSpan EffectiveConnectTimeout => ConnectTimeout ?? TimeSpan.FromSeconds(10);

    /// <summary>Gets the effective call timeout, using the default if not explicitly set.</summary>
    public TimeSpan EffectiveCallTimeout => CallTimeout ?? TimeSpan.FromSeconds(30);

    /// <summary>
    ///     Timeout for the AdminUI Test Connect probe, in seconds. The AdminUI clamps to a
    ///     60s server-side maximum; this default is what the form pre-fills for new instances.
    /// </summary>
    [Display(Name = "Probe timeout (seconds)", Description = "Connection test timeout. Default 15s.", GroupName = "Diagnostics")]
    [Range(1, 60)]
    public int ProbeTimeoutSeconds { get; init; } = 15;
}
