/*
 * Copyright (c) 2012-2015, Microsoft Mobile
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package org.juniversal.translator.cplusplus;

import java.util.List;

import org.juniversal.translator.core.ASTUtil;

import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.Type;
import org.eclipse.jdt.core.dom.VariableDeclarationExpression;
import org.eclipse.jdt.core.dom.VariableDeclarationFragment;
import org.eclipse.jdt.core.dom.VariableDeclarationStatement;


public class VariableDeclarationWriter extends CPlusPlusASTNodeWriter {
    public VariableDeclarationWriter(CPlusPlusSourceFileWriter cPlusPlusASTWriters) {
        super(cPlusPlusASTWriters);
    }

    @Override
	public void write(ASTNode node) {
		// Variable declaration statements & expressions are quite similar, so we handle them both
		// here together

		if (node instanceof VariableDeclarationStatement) {
			VariableDeclarationStatement variableDeclarationStatement = (VariableDeclarationStatement) node;

			writeVariableDeclaration(variableDeclarationStatement.modifiers(), variableDeclarationStatement.getType(),
					variableDeclarationStatement.fragments());
			copySpaceAndComments();

			matchAndWrite(";");
		} else {
			VariableDeclarationExpression variableDeclarationExpression = (VariableDeclarationExpression) node;

			writeVariableDeclaration(variableDeclarationExpression.modifiers(),
					variableDeclarationExpression.getType(), variableDeclarationExpression.fragments());
		}
	}

	private void writeVariableDeclaration(List<?> modifiers, Type type, List<?> fragments) {
		// Turn "final" into "const"
		if (ASTUtil.containsFinal(modifiers)) {
			write("const");
			skipModifiers(modifiers);

			copySpaceAndComments();
		}

		// Write the type
        writeType(type, false);

		boolean needStar = false;
		getContext().setWritingVariableDeclarationNeedingStar(needStar);

		// Write the variable declaration(s)
		boolean first = true;
		for (Object fragment : fragments) {
			VariableDeclarationFragment variableDeclarationFragment = (VariableDeclarationFragment) fragment;

			copySpaceAndComments();
			if (!first) {
				matchAndWrite(",");
				copySpaceAndComments();
			}
            writeNode(variableDeclarationFragment);

			first = false;
		}

		getContext().setWritingVariableDeclarationNeedingStar(false);
	}
}