package no.uio.ifi.refaktor.analyze.analyzers;

import java.util.LinkedList;
import java.util.List;

import no.uio.ifi.refaktor.analyze.ExtractAndMoveMethodAnalysisResult;
import no.uio.ifi.refaktor.analyze.comparators.FavorNoUnfixesAnalysisResultComparator;
import no.uio.ifi.refaktor.analyze.exceptions.NoTargetFoundException;
import no.uio.ifi.refaktor.analyze.exceptions.RefaktorAnalyzerException;
import no.uio.ifi.refaktor.utils.RefaktorDebug;

import org.eclipse.jdt.core.IMethod;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaModelException;

/**
 * Responsible for analyzing all methods in a type for
 * candidates to the Extract and Move Method refactoring.
 */
public class TypeWideExtractAndMoveMethodAnalyzer implements AggregationAnalyzer<ExtractAndMoveMethodAnalysisResult> {

	private final IType type;
	private final List<ExtractAndMoveMethodAnalysisResult> results;

	public TypeWideExtractAndMoveMethodAnalyzer(IType type) {
		this.type = type;
		results = new LinkedList<ExtractAndMoveMethodAnalysisResult>();
	}

	@Override
	public List<ExtractAndMoveMethodAnalysisResult> getResults() {
		return results;
	}

	@Override
	public void analyze() throws RefaktorAnalyzerException {
		try {
			analyzeMethodsInType();
		} catch (JavaModelException e) {
			RefaktorDebug.log(e);
		}
	}

	private void analyzeMethodsInType() throws JavaModelException {
		for (IMethod method: type.getMethods()) {
			analyzeMethod(method);
		}
	}

	private void analyzeMethod(IMethod method) {
		try {
			SearchBasedExtractAndMoveMethodAnalyzer analyzer = 
					new SearchBasedExtractAndMoveMethodAnalyzer(method, new FavorNoUnfixesAnalysisResultComparator());
			analyzer.analyze();
			results.add(analyzer.getResult());
		} catch (NoTargetFoundException e) {
			// Ignoring
		} catch (AssertionError err) {
			RefaktorDebug.log(err);
		}
	}
}