using Bunit;
using ScadaLink.Commons.Types.DataConnections;
using ScadaLink.Commons.Types.Flattening;
using ScadaLink.Commons.Validators;
using OpcUaEndpointEditor = ScadaLink.CentralUI.Components.Forms.OpcUaEndpointEditor;

namespace ScadaLink.CentralUI.Tests.Forms;

public class OpcUaEndpointEditorTests : BunitContext
{
    [Fact]
    public void Renders_All_Four_Section_Labels()
    {
        var config = new OpcUaEndpointConfig();
        var cut = Render<OpcUaEndpointEditor>(p => p
            .Add(c => c.Config, config)
            .Add(c => c.Title, "Primary Endpoint"));

        Assert.Contains("Primary Endpoint", cut.Markup);
        Assert.Contains("Timing", cut.Markup);
        Assert.Contains("Subscription", cut.Markup);
        Assert.Contains("Heartbeat", cut.Markup);
    }

    [Fact]
    public void Binding_MutatesPassedConfigInstance()
    {
        var config = new OpcUaEndpointConfig();
        var cut = Render<OpcUaEndpointEditor>(p => p.Add(c => c.Config, config));

        cut.Find("input[type='text']").Change("opc.tcp://new-host:4840");

        Assert.Equal("opc.tcp://new-host:4840", config.EndpointUrl);
    }

    [Fact]
    public void EnableHeartbeat_CreatesSubObject()
    {
        var config = new OpcUaEndpointConfig();
        var cut = Render<OpcUaEndpointEditor>(p => p.Add(c => c.Config, config));

        Assert.Null(config.Heartbeat);
        cut.FindAll("button").First(b => b.TextContent.Contains("Enable Heartbeat")).Click();

        Assert.NotNull(config.Heartbeat);
    }

    [Fact]
    public void RemoveHeartbeat_NullsSubObject()
    {
        var config = new OpcUaEndpointConfig
        {
            Heartbeat = new OpcUaHeartbeatConfig { TagPath = "Hb", MaxSilenceSeconds = 30 }
        };
        var cut = Render<OpcUaEndpointEditor>(p => p.Add(c => c.Config, config));

        cut.FindAll("button").First(b => b.TextContent.Contains("Remove Heartbeat")).Click();

        Assert.Null(config.Heartbeat);
    }

    [Fact]
    public void Errors_Parameter_RendersPerFieldRedText()
    {
        var config = new OpcUaEndpointConfig { EndpointUrl = "" };
        var errors = OpcUaEndpointConfigValidator.Validate(config, "Primary.");
        var cut = Render<OpcUaEndpointEditor>(p => p
            .Add(c => c.Config, config)
            .Add(c => c.Errors, errors));

        Assert.Contains("Endpoint URL is required.", cut.Markup);
        Assert.Contains("text-danger", cut.Markup);
    }

    [Fact]
    public void IsLegacy_True_RendersWarningBanner()
    {
        var cut = Render<OpcUaEndpointEditor>(p => p
            .Add(c => c.Config, new OpcUaEndpointConfig())
            .Add(c => c.IsLegacy, true));

        Assert.Contains("alert-warning", cut.Markup);
        Assert.Contains("migrated from a legacy format", cut.Markup);
    }
}