package org.codehaus.mojo.properties;

import org.apache.maven.plugin.AbstractMojo;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.project.MavenProject;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;

/**
 * @author <a href="mailto:zarars@gmail.com">Zarar Siddiqi</a>
 * @version $Id$
 */
public abstract class AbstractWritePropertiesMojo extends AbstractMojo {

    /**
     * @parameter default-value="${project}"
     * @required
     * @readonly
     */
     protected MavenProject project;

    /**
     * @parameter
     * @required
     */
    protected File outputFile;

    protected void writeProperties(Properties properties, File file) {
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(file);
        } catch (FileNotFoundException e) {
            getLog().error("Could not create FileOutputStream: " + fos);
            e.printStackTrace();
        }
        try {
            properties.store(fos, "Properties");
        } catch (IOException e) {
            getLog().error("Error writing properties: " + fos);
            e.printStackTrace();
        }
        try {
            fos.close();
        } catch (IOException e) {
            getLog().error("Error closing FileOutputStream: " + fos);
            e.printStackTrace();
        }
    }

    protected void validateOutputFile() throws MojoExecutionException {
        if (outputFile.isDirectory()) {
            throw new MojoExecutionException("outputFile must be a file and not a directory");
        }
        // ensure path exists
        if (outputFile.getParentFile() != null) {
            outputFile.getParentFile().mkdirs();
        }
    }
}