class MyWorkflow extends Workflow
{

    protected $approval1 = false;
    protected $approval2 = false;
    protected $approval3 = false;
    protected $approval4 = false;

    #[SignalMethod]
    public function setApproval1($approval1)
    {
        $this->approval1 = $approval1;
    }

    #[SignalMethod]
    public function setApproval2($approval2)
    {
        $this->approval2 = $approval2;
    }

    #[SignalMethod]
    public function setApproval3($approval3)
    {
        $this->approval3 = $approval3;
    }


    #[SignalMethod]
    public function setApproval4($approval4)
    {
        $this->approval4 = $approval4;
    }

    public function execute()
    {
        yield ActivityStub::make(CreateApprovalRequest1::class);

        yield WorkflowStub::await(fn() => $this->approval1);

        yield ActivityStub::all([
            ActivityStub::make(CreateApprovalRequest2::class),
            ActivityStub::make(CreateApprovalRequest3::class),
        ]);

        yield WorkflowStub::await(fn() => $this->approval2 && $this->approval3);

        yield ActivityStub::make(CreateApprovalRequest4::class);

        yield WorkflowStub::await(fn() => $this->approval4);

        Log::info("done");

        return "success";
    }

}

class CreateApprovalRequest1 extends Activity
{
    public function execute()
    {
        Log::info("creating approval request for 1");
    }
}