using FluentAssertions;
using IBKRTrader.Modules.Supervisor.Agent;

namespace IBKRTrader.Tests.Modules.Supervisor;

[Trait("cat", "unit")]
public class SupervisorToolRegistryTests
{
    private static SupervisorToolRegistry WithEcho()
    {
        var reg = new SupervisorToolRegistry();
        reg.Register(new SupervisorTool("echo", "Echo", """{"type":"object","properties":{"x":{"type":"string"}}}""",
            args => SupervisorToolRegistry.GetString(args, "x") ?? "(leer)"));
        return reg;
    }

    [Fact]
    public void UnknownTool_ReturnsErrorText_DoesNotThrow()
    {
        var reg = WithEcho();
        reg.Execute("nope", "{}").Should().StartWith("FEHLER: Unbekanntes Tool");
    }

    [Fact]
    public void InvalidJsonArgs_ReturnsErrorText()
    {
        var reg = WithEcho();
        reg.Execute("echo", "{ kaputt").Should().StartWith("FEHLER: Ungültige Tool-Argumente");
    }

    [Fact]
    public void ExecutesRegisteredTool()
    {
        var reg = WithEcho();
        reg.Execute("echo", """{"x":"hallo"}""").Should().Be("hallo");
    }

    [Fact]
    public void ToolException_IsCaught_AsErrorText()
    {
        var reg = new SupervisorToolRegistry();
        reg.Register(new SupervisorTool("boom", "Boom", """{"type":"object"}""",
            _ => throw new InvalidOperationException("geplatzt")));

        reg.Execute("boom", "{}").Should().Contain("geplatzt");
    }
}