import {BpmnTags, Model} from '@process-engine/process_engine_contracts';
import {
  createObjectWithCommonProperties,
  getModelPropertyAsArray,
} from './../type_factory';

export function parseProcessSequenceFlows(data: any): Array<Model.Types.SequenceFlow> {

  // NOTE: See above, this can be an Object or an Array (Admittedly, the first is somewhat unlikely here, but not impossible).
  const sequenceData: Array<any> = getModelPropertyAsArray(data, BpmnTags.OtherElements.SequenceFlow);

  const sequences: Array<Model.Types.SequenceFlow> = [];

  for (const sequenceRaw of sequenceData) {

    const sequenceFlow: Model.Types.SequenceFlow = createObjectWithCommonProperties(sequenceRaw, Model.Types.SequenceFlow);

    sequenceFlow.name = sequenceRaw.name;
    sequenceFlow.sourceRef = sequenceRaw.sourceRef;
    sequenceFlow.targetRef = sequenceRaw.targetRef;

    if (sequenceRaw[BpmnTags.FlowElementProperty.ConditionExpression]) {
      const conditionData: any = sequenceRaw[BpmnTags.FlowElementProperty.ConditionExpression];

      sequenceFlow.conditionExpression = {
        type: conditionData[BpmnTags.FlowElementProperty.XsiType],
        expression: conditionData._,
      };
    }

    sequences.push(sequenceFlow);
  }

  return sequences;
}