Copyright (c) 2018 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
    Red Hat Inc. - copied and modified in jdt.core.manipulation
/*******************************************************************************
 * Copyright (c) 2018 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Red Hat Inc. - copied and modified in jdt.core.manipulation
 *******************************************************************************/
package org.eclipse.jdt.internal.ui.text.correction;

import org.eclipse.jdt.core.IJavaModelMarker;
import org.eclipse.jdt.core.compiler.CategorizedProblem;
import org.eclipse.jdt.core.compiler.IProblem;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.NodeFinder;

/**
 *
 */
public class ProblemLocationCore implements IProblemLocationCore {

	private final int fId;
	private final String[] fArguments;
	private final int fOffset;
	private final int fLength;
	private final boolean fIsError;
	private final String fMarkerType;

	public ProblemLocationCore(int offset, int length, int id, String[] arguments, boolean isError, String markerType) {
		fId= id;
		fArguments= arguments;
		fOffset= offset;
		fLength= length;
		fIsError= isError;
		fMarkerType= markerType;
	}

	public ProblemLocationCore(IProblem problem) {
		fId= problem.getID();
		fArguments= problem.getArguments();
		fOffset= problem.getSourceStart();
		fLength= problem.getSourceEnd() - fOffset + 1;
		fIsError= problem.isError();
		fMarkerType= problem instanceof CategorizedProblem ? ((CategorizedProblem) problem).getMarkerType() : IJavaModelMarker.JAVA_MODEL_PROBLEM_MARKER;
	}


	@Override
	public int getProblemId() {
		return fId;
	}

	@Override
	public String[] getProblemArguments() {
		return fArguments;
	}

	@Override
	public int getLength() {
		return fLength;
	}

	@Override
	public int getOffset() {
		return fOffset;
	}

	@Override
	public boolean isError() {
		return fIsError;
	}

	@Override
	public String getMarkerType() {
		return fMarkerType;
	}

	@Override
	public ASTNode getCoveringNode(CompilationUnit astRoot) {
		NodeFinder finder= new NodeFinder(astRoot, fOffset, fLength);
		return finder.getCoveringNode();
	}

	@Override
	public ASTNode getCoveredNode(CompilationUnit astRoot) {
		NodeFinder finder= new NodeFinder(astRoot, fOffset, fLength);
		return finder.getCoveredNode();
	}

	@Override
	public String toString() {
		StringBuilder buf= new StringBuilder();
		buf.append("Id: ").append(getErrorCode(fId)).append('\n'); //$NON-NLS-1$
		buf.append('[').append(fOffset).append(", ").append(fLength).append(']').append('\n'); //$NON-NLS-1$
		String[] arg= fArguments;
		for (int i= 0; i < arg.length; i++) {
			buf.append(arg[i]);
			buf.append('\n');
		}
		return buf.toString();
	}

	private String getErrorCode(int code) {
		StringBuilder buf= new StringBuilder();

		if ((code & IProblem.TypeRelated) != 0) {
			buf.append("TypeRelated + "); //$NON-NLS-1$
		}
		if ((code & IProblem.FieldRelated) != 0) {
			buf.append("FieldRelated + "); //$NON-NLS-1$
		}
		if ((code & IProblem.ConstructorRelated) != 0) {
			buf.append("ConstructorRelated + "); //$NON-NLS-1$
		}
		if ((code & IProblem.MethodRelated) != 0) {
			buf.append("MethodRelated + "); //$NON-NLS-1$
		}
		if ((code & IProblem.ImportRelated) != 0) {
			buf.append("ImportRelated + "); //$NON-NLS-1$
		}
		if ((code & IProblem.Internal) != 0) {
			buf.append("Internal + "); //$NON-NLS-1$
		}
		if ((code & IProblem.Syntax) != 0) {
			buf.append("Syntax + "); //$NON-NLS-1$
		}
		if ((code & IProblem.Javadoc) != 0) {
			buf.append("Javadoc + "); //$NON-NLS-1$
		}
		buf.append(code & IProblem.IgnoreCategoriesMask);

		return buf.toString();
	}


}