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package org.activiti.springboot.boot.process.validation;

import org.activiti.bpmn.model.*;
import org.activiti.bpmn.model.Process;
import org.activiti.validation.ValidationError;
import org.activiti.validation.validator.Problems;
import org.activiti.validation.validator.ProcessLevelValidator;

import java.util.List;

public class AsyncPropertyValidator extends ProcessLevelValidator {

    @Override
    protected void executeValidation(BpmnModel bpmnModel, Process process, List errors) {
        validateFlowElementsInContainer(process, errors, process);
    }

    protected void validateFlowElementsInContainer(FlowElementsContainer container, List errors, Process process) {
        for (FlowElement flowElement : container.getFlowElements()) {
            if (flowElement instanceof FlowElementsContainer) {
                FlowElementsContainer subProcess = (FlowElementsContainer) flowElement;
                validateFlowElementsInContainer(subProcess, errors, process);
            }

            if ((flowElement instanceof FlowNode) && ((FlowNode) flowElement).isAsynchronous()) {
                addWarning(errors, Problems.FLOW_ELEMENT_ASYNC_NOT_AVAILABLE, process , flowElement, "Async property is not available when asyncExecutor is disabled.");
            }

            if ((flowElement instanceof Event)) {
                ((Event) flowElement).getEventDefinitions().stream().forEach(event -> {
                    if (event instanceof TimerEventDefinition) {
                        addWarning(errors, Problems.EVENT_TIMER_ASYNC_NOT_AVAILABLE, process, flowElement, "Timer event is not available when asyncExecutor is disabled.");
                    } else if ((event instanceof SignalEventDefinition) && ((SignalEventDefinition) event).isAsync() ) {
                        addWarning(errors, Problems.SIGNAL_ASYNC_NOT_AVAILABLE, process, flowElement, "Async property is not available when asyncExecutor is disabled.");
                    }
                });
            }
        }
    }
}