/**
 * $Id: $
 * $Date: $
 *
 */

package org.xmlsh.aws;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;
import javax.xml.stream.XMLStreamException;
import org.xmlsh.aws.util.AWSCFNCommand;
import org.xmlsh.core.CoreException;
import org.xmlsh.core.Options;
import org.xmlsh.core.SafeXMLStreamWriter;
import org.xmlsh.core.UnexpectedException;
import org.xmlsh.core.XValue;
import org.xmlsh.core.io.OutputPort;
import org.xmlsh.sh.shell.SerializeOpts;
import com.amazonaws.services.cloudformation.model.GetTemplateRequest;
import com.amazonaws.services.cloudformation.model.GetTemplateResult;
import net.sf.saxon.s9api.SaxonApiException;

public class cfnGetTemplate extends AWSCFNCommand {

  @Override
  public int run(List<XValue> args) throws Exception {

    Options opts = getOptions("j=json,n=name:");
    parseOptions(opts, args);
    setSerializeOpts(this.getSerializeOpts(opts));

    args = opts.getRemainingArgs();

    boolean bJson = opts.hasOpt("json");

    try {
      getCFNClient(opts);
    } catch (UnexpectedException e) {
      usage(e.getLocalizedMessage());
      return 1;

    }

    int ret = getTemplate(opts.getOptStringRequired("name"), bJson);

    return ret;

  }

  private int getTemplate(String stack, boolean bJson)
      throws IOException, XMLStreamException, SaxonApiException, CoreException {

    OutputPort stdout = getStdout();

    GetTemplateRequest request = new GetTemplateRequest().withStackName(stack);

    traceCall("getTemplate");

    GetTemplateResult result = getAWSClient().getTemplate(request);

    if(bJson) {
      SerializeOpts opts = getSerializeOpts().clone();
      opts.setOutput_text_encoding("utf-8");

      PrintWriter w = stdout.asPrintWriter(opts);
      w.print(result.getTemplateBody());
      w.close();

    }
    else {
      mWriter = new SafeXMLStreamWriter(
          stdout.asXMLStreamWriter(getSerializeOpts()));

      startDocument();
      startElement(this.getName());

      characters(result.getTemplateBody());

      endElement();
      endDocument();
      closeWriter();

      stdout.writeSequenceTerminator(getSerializeOpts());
    }
    return 0;

  }

}

/*
 * Copyright (C) 2008-2014 David A. Lee.
 * 
 * The contents of this file are subject to the "Simplified BSD License" (the
 * "License");
 * you may not use this file except in compliance with the License. You may
 * obtain a copy of the
 * License at http://www.opensource.org/licenses/bsd-license.php
 * 
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied.
 * See the License for the specific language governing rights and limitations
 * under the License.
 *
 * The Original Code is: all this file.
 *
 * The Initial Developer of the Original Code is David A. Lee
 *
 * Portions created by (your name) are Copyright (C) (your legal entity). All
 * Rights Reserved.
 *
 * Contributor(s): David A. Lee
 * 
 */