using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.AdminUI.ScriptAnalysis;

namespace ZB.MOM.WW.OtOpcUa.AdminUI.Tests.ScriptAnalysis;

/// <summary>
///     R04:S3 / S2 — the marker round-trip now feeds a real Problems list (MarkersChanged → list → RevealLineAsync),
///     and the dead inlay-hints endpoint is gone. The Razor wiring is live-verified; the ordering and wording it
///     renders are pinned here.
/// </summary>
public sealed class ProblemsListTests
{
    private static DiagnosticMarker M(int sev, int line, int col, string code = "X") => new(sev, line, col, line, col + 1, "msg", code);

    [Fact]
    public void Problems_are_ordered_errors_first_then_by_position()
    {
        var ordered = ScriptProblems.Order(new[]
        {
            M(4, 1, 1, "W1"), M(8, 9, 2, "E3"), M(8, 2, 5, "E2"), M(8, 2, 1, "E1"), M(2, 1, 1, "I1"),
        });

        ordered.Select(m => m.Code).ShouldBe(new[] { "E1", "E2", "E3", "W1", "I1" });
    }

    [Fact]
    public void Null_or_empty_markers_order_to_an_empty_list() => ScriptProblems.Order(null).ShouldBeEmpty();

    [Theory]
    [InlineData(8, "Error")]
    [InlineData(4, "Warning")]
    [InlineData(2, "Info")]
    [InlineData(1, "Hint")]
    public void Severity_labels_follow_monaco_values(int severity, string label)
        => ScriptProblems.SeverityLabel(severity).ShouldBe(label);

    [Fact]
    public void Summary_counts_errors_and_warnings()
    {
        ScriptProblems.Summary(Array.Empty<DiagnosticMarker>()).ShouldBe("No problems");
        ScriptProblems.Summary(new[] { M(8, 1, 1) }).ShouldBe("1 error");
        ScriptProblems.Summary(new[] { M(8, 1, 1), M(8, 2, 1), M(4, 3, 1) }).ShouldBe("2 errors, 1 warning");
        ScriptProblems.Summary(new[] { M(4, 1, 1), M(4, 2, 1), M(2, 3, 1) }).ShouldBe("2 warnings, 1 other");
    }

    [Fact]
    public void The_inlay_hints_endpoint_is_gone()
    {
        // The always-empty inlay-hints endpoint (and the JS provider that POSTed the full source to it on every
        // edit) were removed. Positive control: the other five routes are still mapped.
        var (app, _) = AnalysisCancellationTests.BuildApp();
        var routes = AnalysisCancellationTests.Endpoints(app).Select(e => e.RoutePattern.RawText!).ToList();

        routes.ShouldNotContain(r => r.Contains("inlay", StringComparison.OrdinalIgnoreCase));
        foreach (var r in new[] { "/diagnostics", "/completions", "/hover", "/signature-help", "/format" })
            routes.ShouldContain(x => x.EndsWith(r));
    }
}