using System.Collections.Generic;
using System.Threading.Tasks;
using Shouldly;
using Xunit;
using ZB.MOM.WW.LmxOpcUa.Host.Domain;
using ZB.MOM.WW.LmxOpcUa.Host.OpcUa;
using ZB.MOM.WW.LmxOpcUa.Tests.Helpers;

namespace ZB.MOM.WW.LmxOpcUa.Tests.Wiring
{
    /// <summary>
    /// Verifies: OPC UA Read → NodeManager → IMxAccessClient.ReadAsync with correct full_tag_reference
    /// </summary>
    public class OpcUaReadToMxAccessWiringTest
    {
        /// <summary>
        /// Confirms that the resolved OPC UA read path uses the expected full Galaxy tag reference.
        /// </summary>
        [Fact]
        public async Task Read_ResolvesCorrectTagReference()
        {
            var mxClient = new FakeMxAccessClient();
            mxClient.TagValues["DelmiaReceiver_001.DownloadPath"] = Vtq.Good("/some/path");

            var hierarchy = new List<GalaxyObjectInfo>
            {
                new GalaxyObjectInfo { GobjectId = 1, TagName = "TestMachine_001", BrowseName = "TestMachine_001", ParentGobjectId = 0, IsArea = false },
                new GalaxyObjectInfo { GobjectId = 2, TagName = "DelmiaReceiver_001", ContainedName = "DelmiaReceiver", BrowseName = "DelmiaReceiver", ParentGobjectId = 1, IsArea = false }
            };
            var attributes = new List<GalaxyAttributeInfo>
            {
                new GalaxyAttributeInfo { GobjectId = 2, TagName = "DelmiaReceiver_001", AttributeName = "DownloadPath", FullTagReference = "DelmiaReceiver_001.DownloadPath", MxDataType = 5, IsArray = false }
            };

            var model = AddressSpaceBuilder.Build(hierarchy, attributes);

            // The model should contain the correct tag reference
            model.NodeIdToTagReference.ContainsKey("DelmiaReceiver_001.DownloadPath").ShouldBe(true);
            model.NodeIdToTagReference["DelmiaReceiver_001.DownloadPath"].ShouldBe("DelmiaReceiver_001.DownloadPath");

            // The MxAccessClient should be able to read using the tag reference
            var vtq = await mxClient.ReadAsync("DelmiaReceiver_001.DownloadPath");
            vtq.Value.ShouldBe("/some/path");
            vtq.Quality.ShouldBe(Quality.Good);
        }
    }
}