lmxopcua/src/Server/ZB.MOM.WW.OtOpcUa.Host/OpcUa/FailedServiceLevelBindingCleanup.cs

using Microsoft.Extensions.Logging;

namespace ZB.MOM.WW.OtOpcUa.Host.OpcUa;

/// <summary>Coordinates endpoint cleanup after ServiceLevel binding fails during startup.</summary>
internal static class FailedServiceLevelBindingCleanup
{
    /// <summary>Stops and disposes the endpoint, returning whether ownership can be released.</summary>
    /// <param name="stop">The SDK stop operation.</param>
    /// <param name="dispose">The application-host disposal operation.</param>
    /// <param name="logger">The cleanup logger.</param>
    /// <returns>Whether cleanup completed successfully.</returns>
    internal static async Task<bool> StopAndDisposeAsync(
        Func<Task> stop, Func<ValueTask> dispose, ILogger logger)
    {
        var completed = true;
        try
        {
            await stop().ConfigureAwait(false);
        }
        catch (Exception ex)
        {
            completed = false;
            logger.LogError(ex, "OtOpcUaServerHostedService: SDK stop failed after binding failure; retaining endpoint ownership for shutdown retry");
        }
        // Attempt application cleanup even when stopping faults; keep ownership on either failure.
        try
        {
            await dispose().ConfigureAwait(false);
        }
        catch (Exception ex)
        {
            completed = false;
            logger.LogError(ex, "OtOpcUaServerHostedService: endpoint disposal failed after binding failure; retaining endpoint ownership for shutdown retry");
        }
        return completed;
    }
}