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package prerna.reactor.frame;

import prerna.algorithm.api.ITableDataFrame;
import prerna.query.querystruct.SelectQueryStruct;
import prerna.reactor.AbstractReactor;
import prerna.sablecc2.om.PixelDataType;
import prerna.sablecc2.om.PixelOperationType;
import prerna.sablecc2.om.execptions.SemossPixelException;
import prerna.sablecc2.om.nounmeta.NounMetadata;

public class LastUsedFrameReactor extends AbstractReactor {

	@Override
	public NounMetadata execute() {
		ITableDataFrame defaultFrame = null;
		// get the last frame
		SelectQueryStruct qs = this.insight.getLastQS(this.insight.getLastPanelId());
		if(qs != null) {
			defaultFrame = qs.getFrame();
		}
		if(defaultFrame == null) {
			// default to the current frame
			defaultFrame = (ITableDataFrame) this.insight.getDataMaker();
			if(defaultFrame == null) {
				SemossPixelException exception = new SemossPixelException(new NounMetadata("No frame currently exists", PixelDataType.CONST_STRING, PixelOperationType.ERROR));
				exception.setContinueThreadOfExecution(true);
				throw exception;
			}
		}
		
		NounMetadata noun = new NounMetadata(defaultFrame, PixelDataType.FRAME, PixelOperationType.FRAME);
		return noun;
	}

}