package no.uio.ifi.refaktor.analyze;

import no.uio.ifi.refaktor.analyze.collectors.PropertyCollector;
import no.uio.ifi.refaktor.textselection.CompilationUnitTextSelection;

import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.MethodDeclaration;
import org.eclipse.jdt.internal.corext.dom.ASTNodes;

@SuppressWarnings("restriction")
public class CollectorManager {
	
	private final PropertyCollector[] collectors;
	private final ASTNode startNode;
	
	private CollectorManager(ASTNode startNode, PropertyCollector ... collectors) {
		this.startNode = startNode;
		this.collectors = collectors;
	}

	public static void collectProperties(CompilationUnitTextSelection selection, PropertyCollector ... collectors) {
		new CollectorManager(selection.getCoveringNode(), collectors).collectProperties();
	}

	public static void collectPropertiesFromEnclosingMethod(CompilationUnitTextSelection selection, PropertyCollector ... collectors) {
		ASTNode startNode = ASTNodes.getParent(selection.getCoveredNode(), MethodDeclaration.class);
		assert startNode instanceof MethodDeclaration;
		new CollectorManager(startNode, collectors).collectProperties();
	}

	private void collectProperties() {
		clearCollectorsData();
		runCollectors();
	}

	private void clearCollectorsData() {
		for (PropertyCollector collector: collectors)
			collector.clearData();
	}

	private void runCollectors() {
		for (PropertyCollector collector: collectors)
			startNode.accept(collector);
	}
}