using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.AdminUI.Components.Shared.Drivers;

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

/// <summary>
///     G1-F5 / F-FU2: Test Connect honours the driver's configured <c>ProbeTimeoutSeconds</c> (so it can
///     lengthen the budget, not only shorten it), aligned across Galaxy and OpcUaClient, and the button
///     drains its clear timer (R04 L2).
/// </summary>
[Trait("Category", "Unit")]
public sealed class TestConnectBudgetTests
{
    [Theory]
    [InlineData("{\"ProbeTimeoutSeconds\":30}", 30)]            // Galaxy default — was silently 10 s
    [InlineData("{\"probeTimeoutSeconds\":15}", 15)]            // OpcUaClient default, camelCase
    [InlineData("{\"ProbeTimeoutSeconds\":\"25\"}", 25)]
    [InlineData("{\"ProbeTimeoutSeconds\":2.5}", 3)]
    [InlineData("{\"ProbeTimeoutSeconds\":600}", 60)]           // clamped to the actor's max
    public void A_configured_timeout_is_the_budget(string json, int expected)
        => TestConnectBudget.Resolve(json).ShouldBe(expected);

    [Theory]
    [InlineData(null)]
    [InlineData("")]
    [InlineData("{}")]
    [InlineData("{\"ProbeTimeoutSeconds\":0}")]
    [InlineData("{\"ProbeTimeoutSeconds\":-5}")]
    [InlineData("{\"ProbeTimeoutSeconds\":null}")]
    [InlineData("not json")]
    [InlineData("[1,2]")]
    [InlineData("{\"Nested\":{\"ProbeTimeoutSeconds\":40}}")] // only the root key counts
    public void No_valid_configured_timeout_falls_back(string? json)
        => TestConnectBudget.Resolve(json, fallbackSeconds: 10).ShouldBe(10);

    [Fact]
    public void The_fallback_is_clamped_too()
    {
        TestConnectBudget.Resolve("{}", fallbackSeconds: 0).ShouldBe(TestConnectBudget.MinSeconds);
        TestConnectBudget.Resolve("{}", fallbackSeconds: 999).ShouldBe(TestConnectBudget.MaxSeconds);
    }

    [Fact]
    public void Button_resolves_its_budget_from_the_config_and_drains_a_threading_timer()
    {
        var src = AdminUiSource.Read("Components", "Shared", "Drivers", "DriverTestConnectButton.razor");

        src.ShouldContain("TestConnectBudget.Resolve(json, TimeoutSeconds)");
        src.ShouldContain("@implements IAsyncDisposable");
        src.ShouldContain("System.Threading.Timer");
        src.ShouldNotContain("System.Timers.Timer");
        src.ShouldNotContain("async (_, _)");
    }
}