using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
using ZB.MOM.WW.OtOpcUa.Driver.AbCip;

namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip.IntegrationTests;

/// <summary>
///     End-to-end smoke tests that exercise the real libplctag stack against a running
///     <c>ab_server</c>. Skipped when the binary isn't on PATH (<see cref="AbServerFactAttribute"/>).
/// </summary>
/// <remarks>
///     Intentionally minimal — per-family + per-capability coverage ships in PRs 9–12 once the
///     integration harness is CI-ready. This file exists at PR 3 time to prove the wire path
///     works end-to-end on developer boxes that have <c>ab_server</c>.
/// </remarks>
[Trait("Category", "Integration")]
[Trait("Requires", "AbServer")]
public sealed class AbCipReadSmokeTests : IAsyncLifetime
{
    private readonly AbServerFixture _fixture = new();

    public async ValueTask InitializeAsync() => await _fixture.InitializeAsync();
    public async ValueTask DisposeAsync() => await _fixture.DisposeAsync();

    [AbServerFact]
    public async Task Driver_reads_DInt_from_ab_server()
    {
        var drv = new AbCipDriver(new AbCipDriverOptions
        {
            Devices = [new AbCipDeviceOptions($"ab://127.0.0.1:{_fixture.Port}/1,0", AbCipPlcFamily.ControlLogix)],
            Tags = [new AbCipTagDefinition("Counter", $"ab://127.0.0.1:{_fixture.Port}/1,0", "TestDINT", AbCipDataType.DInt)],
            Timeout = TimeSpan.FromSeconds(5),
        }, "drv-smoke");

        await drv.InitializeAsync("{}", CancellationToken.None);
        var snapshots = await drv.ReadAsync(["Counter"], CancellationToken.None);

        snapshots.Single().StatusCode.ShouldBe(AbCipStatusMapper.Good);
        drv.GetHealth().State.ShouldBe(DriverState.Healthy);

        await drv.ShutdownAsync(CancellationToken.None);
    }
}