using Bunit;
using ZB.MOM.WW.ScadaBridge.CentralUI.Components.Deployment;
using ZB.MOM.WW.ScadaBridge.Commons.Types.Debugging;

namespace ZB.MOM.WW.ScadaBridge.CentralUI.Tests.Deployment;

/// <summary>
/// Flow Debugger outbound-calls plan (2026-09-06) Task 8: the step detail panel's Lifecycle tab,
/// outbound "Where this ran" fields and kind-specific Input tab labels. Follow-ups plan (2026-09-06)
/// Task 6: report deep links from a correlated outbound step and Retry/Discard on a parked one (D2/D5).
/// </summary>
public class FlowStepDetailTests : BunitContext
{
    private static readonly DateTimeOffset T0 = new(2026, 9, 6, 12, 0, 0, TimeSpan.Zero);

    private static FlowStep Step(FlowStepKind kind, FlowStepOutcome outcome, string target, IReadOnlyList<FlowLifecycleRow>? lifecycle = null, Guid? correlationId = null)
        => new(Guid.NewGuid(), Guid.NewGuid(), null, kind, FlowLane.External, target, "Delivered · cached", T0, 4100, outcome,
            "{\"id\":1}", "{\"ok\":true}", outcome == FlowStepOutcome.Failed ? "boom" : null, "site-a", "node-a", "M1", target, null, lifecycle, correlationId);

    private static IReadOnlyList<FlowLifecycleRow> CachedLifecycle(string terminalStatus) =>
    [
        new(Guid.NewGuid(), "CachedSubmit", "Submitted", T0, "node-a", null, null),
        new(Guid.NewGuid(), "ApiCallCached", "Attempted", T0.AddSeconds(3), "node-a", "503 Service Unavailable", 40),
        new(Guid.NewGuid(), "CachedResolve", terminalStatus, T0.AddMilliseconds(4100), "node-b", null, null),
    ];

    [Fact]
    public void LifecycleTab_RendersRowsInTimeOrder_AndDeliveredBy()
    {
        var step = Step(FlowStepKind.ApiCall, FlowStepOutcome.Ok, "Delmia.AckRecipe", CachedLifecycle("Delivered"));
        var cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, step));

        cut.Find("[data-test=flow-step-tab-lifecycle]").Click();

        var rows = cut.FindAll("[data-test=flow-step-lifecycle] tbody tr");
        Assert.Equal(3, rows.Count);
        Assert.Contains("CachedSubmit", rows[0].TextContent);
        Assert.Contains("Submitted", rows[0].TextContent);
        Assert.Contains("503 Service Unavailable", rows[1].TextContent);
        Assert.Contains("CachedResolve", rows[2].TextContent);
        Assert.Contains("node-b", rows[2].TextContent);
        Assert.Contains("12:00:04.100", rows[2].TextContent);

        var where = cut.Find("[data-test=flow-step-where]").TextContent;
        Assert.Contains("System", where);
        Assert.Contains("Delmia.AckRecipe", where);
        Assert.Contains("Delivered by", where);
        Assert.Contains("node-b", where);
        Assert.Empty(cut.FindAll("[data-test=flow-step-parked-hint]"));
    }

    [Fact]
    public void NoLifecycle_HidesTheTab()
    {
        var step = Step(FlowStepKind.AttributeWrite, FlowStepOutcome.Ok, "A") with { Lane = FlowLane.Tags };
        var cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, step));
        Assert.Empty(cut.FindAll("[data-test=flow-step-tab-lifecycle]"));
        Assert.Equal("Input", cut.Find("[data-test=flow-step-tab-input]").TextContent.Trim());
    }

    [Fact]
    public void ParkedNotify_ShowsHint_AndListLabel_AndParkedBadge()
    {
        var lifecycle = new List<FlowLifecycleRow>
        {
            new(Guid.NewGuid(), "NotifySend", "Submitted", T0, "node-a", null, null),
            new(Guid.NewGuid(), "NotifyDeliver", "Parked", T0.AddSeconds(9), "central-a", "retries exhausted", null),
        };
        var step = Step(FlowStepKind.Notify, FlowStepOutcome.Parked, "Planners", lifecycle);
        var cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, step));

        Assert.Equal("Parked", cut.Find("[data-test=flow-step-outcome]").TextContent.Trim());
        Assert.Contains("warning", cut.Find("[data-test=flow-step-outcome]").ClassName);
        Assert.Equal("Subject + body", cut.Find("[data-test=flow-step-tab-input]").TextContent.Trim());
        var where = cut.Find("[data-test=flow-step-where]").TextContent;
        Assert.Contains("List", where);
        Assert.Contains("central-a", where);

        cut.Find("[data-test=flow-step-tab-lifecycle]").Click();
        Assert.Contains("Site Calls / Notification", cut.Find("[data-test=flow-step-parked-hint]").TextContent);
    }

    [Theory]
    [InlineData(FlowStepKind.ApiCall, "Request", "System")]
    [InlineData(FlowStepKind.DbCall, "SQL + parameters", "Connection")]
    [InlineData(FlowStepKind.Notify, "Subject + body", "List")]
    public void OutboundKinds_LabelInputTabAndTarget(FlowStepKind kind, string inputLabel, string targetLabel)
    {
        var step = Step(kind, FlowStepOutcome.Pending, "T");
        var cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, step));
        Assert.Equal(inputLabel, cut.Find("[data-test=flow-step-tab-input]").TextContent.Trim());
        Assert.Contains(targetLabel, cut.Find("[data-test=flow-step-where]").TextContent);
        Assert.Equal("Pending", cut.Find("[data-test=flow-step-outcome]").TextContent.Trim());
    }
    [Fact]
    public void OutboundStepWithCorrelation_LinksToTheReportPage()
    {
        var c = Guid.NewGuid();

        var api = Step(FlowStepKind.ApiCall, FlowStepOutcome.Ok, "Delmia.AckRecipe", CachedLifecycle("Delivered"), c);
        var cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, api));
        var link = cut.Find("a[data-test=open-report]");
        Assert.Equal($"/site-calls/report?correlationId={c:D}", link.GetAttribute("href"));
        Assert.Equal("Open in Site Calls", link.TextContent.Trim());

        var notify = Step(FlowStepKind.Notify, FlowStepOutcome.Ok, "Planners", CachedLifecycle("Delivered"), c);
        cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, notify));
        link = cut.Find("a[data-test=open-report]");
        Assert.Equal($"/notifications/report?correlationId={c:N}", link.GetAttribute("href"));
        Assert.Equal("Open in Notification report", link.TextContent.Trim());

        var sync = Step(FlowStepKind.ApiCall, FlowStepOutcome.Ok, "Delmia.AckRecipe");
        cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, sync));
        Assert.Empty(cut.FindAll("[data-test=open-report]"));
    }

    [Fact]
    public void ParkedStep_WithCallbacks_ShowsRetryAndDiscard()
    {
        var c = Guid.NewGuid();
        var step = Step(FlowStepKind.ApiCall, FlowStepOutcome.Parked, "Delmia.AckRecipe", CachedLifecycle("Parked"), c);
        FlowStep? retried = null;
        FlowStep? discarded = null;

        var cut = Render<FlowStepDetail>(p => p
            .Add(x => x.Step, step)
            .Add(x => x.OnRetry, s => retried = s)
            .Add(x => x.OnDiscard, s => discarded = s));

        var retry = cut.Find("button[data-test=flow-step-retry]");
        var discard = cut.Find("button[data-test=flow-step-discard]");
        Assert.Equal("Retry", retry.TextContent.Trim());
        Assert.Equal("Discard", discard.TextContent.Trim());
        Assert.Contains("btn-outline-primary", retry.ClassName);
        Assert.Contains("btn-outline-danger", discard.ClassName);
        Assert.False(retry.HasAttribute("disabled"));
        Assert.False(discard.HasAttribute("disabled"));

        retry.Click();
        Assert.Same(step, retried);
        Assert.Null(discarded);

        discard.Click();
        Assert.Same(step, discarded);

        cut.Render(p => p
            .Add(x => x.Step, step)
            .Add(x => x.OnRetry, s => retried = s)
            .Add(x => x.OnDiscard, s => discarded = s)
            .Add(x => x.ActionInProgress, true));
        Assert.True(cut.Find("button[data-test=flow-step-retry]").HasAttribute("disabled"));
        Assert.True(cut.Find("button[data-test=flow-step-discard]").HasAttribute("disabled"));
    }

    [Fact]
    public void ParkedStep_WithoutCallbacks_ShowsOnlyTheHintLink()
    {
        var c = Guid.NewGuid();
        var step = Step(FlowStepKind.Notify, FlowStepOutcome.Parked, "Planners", CachedLifecycle("Parked"), c);
        var cut = Render<FlowStepDetail>(p => p.Add(x => x.Step, step));

        Assert.Empty(cut.FindAll("[data-test=flow-step-retry]"));
        Assert.Empty(cut.FindAll("[data-test=flow-step-discard]"));

        cut.Find("[data-test=flow-step-tab-lifecycle]").Click();
        var hint = cut.Find("[data-test=flow-step-parked-hint]");
        Assert.Contains("Parked", hint.TextContent);
        var hintLink = hint.QuerySelector("a");
        Assert.NotNull(hintLink);
        Assert.Equal($"/notifications/report?correlationId={c:N}", hintLink!.GetAttribute("href"));
    }

    [Fact]
    public void OkStep_NeverShowsActions()
    {
        var step = Step(FlowStepKind.ApiCall, FlowStepOutcome.Ok, "Delmia.AckRecipe", CachedLifecycle("Delivered"), Guid.NewGuid());
        var cut = Render<FlowStepDetail>(p => p
            .Add(x => x.Step, step)
            .Add(x => x.OnRetry, _ => { })
            .Add(x => x.OnDiscard, _ => { }));

        Assert.Empty(cut.FindAll("[data-test=flow-step-retry]"));
        Assert.Empty(cut.FindAll("[data-test=flow-step-discard]"));
    }
}