/* Copyright (c) 2013-2014 Boundless and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Distribution License v1.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/org/documents/edl-v10.html
 *
 * Contributors:
 * Victor Olaya (Boundless) - initial implementation
 */
package org.locationtech.geogig.api.plumbing.merge;

import java.io.File;
import java.net.URL;

import org.locationtech.geogig.api.AbstractGeoGigOp;
import org.locationtech.geogig.api.plumbing.ResolveGeogigDir;

import com.google.common.base.Charsets;
import com.google.common.base.Throwables;
import com.google.common.io.Files;

public class SaveMergeCommitMessageOp extends AbstractGeoGigOp<Void> {

    private String message;

    public SaveMergeCommitMessageOp setMessage(String message) {
        this.message = message;
        return this;
    }

    @Override
    protected Void _call() {
        URL envHome = new ResolveGeogigDir(platform()).call().get();
        try {
            File file = new File(envHome.toURI());
            file = new File(file, "MERGE_MSG");
            Files.write(message, file, Charsets.UTF_8);
        } catch (Exception e) {
            throw Throwables.propagate(e);
        }
        return null;
    }

}