using System;
using System.Collections.Generic;
using System.Diagnostics;
using Shouldly;
using Xunit;
using ZB.MOM.WW.LmxOpcUa.Host;
using ZB.MOM.WW.LmxOpcUa.Host.Configuration;
using ZB.MOM.WW.LmxOpcUa.Host.Domain;
using ZB.MOM.WW.LmxOpcUa.Tests.Helpers;

namespace ZB.MOM.WW.LmxOpcUa.Tests.Wiring
{
    /// <summary>
    /// Verifies: Start then Stop completes within 30 seconds. (SVC-004)
    /// </summary>
    public class ShutdownCompletesTest
    {
        /// <summary>
        /// Confirms that a started service can shut down within the required time budget.
        /// </summary>
        [Fact]
        public void Shutdown_CompletesWithin30Seconds()
        {
            var config = new AppConfiguration
            {
                OpcUa = new OpcUaConfiguration { Port = 14841, GalaxyName = "TestGalaxy" },
                MxAccess = new MxAccessConfiguration { ClientName = "Test" },
                Dashboard = new DashboardConfiguration { Enabled = false }
            };

            var proxy = new FakeMxProxy();
            var repo = new FakeGalaxyRepository();
            var service = new OpcUaService(config, proxy, repo);

            service.Start();

            var sw = Stopwatch.StartNew();
            service.Stop();
            sw.Stop();

            sw.Elapsed.TotalSeconds.ShouldBeLessThan(30);
        }
    }
}