package org.xmlsh.aws;

import java.io.IOException;
import java.util.List;
import javax.xml.stream.XMLStreamException;
import org.xmlsh.aws.util.AWSSQSCommand;
import org.xmlsh.core.CoreException;
import org.xmlsh.core.Options;
import org.xmlsh.core.UnexpectedException;
import org.xmlsh.core.XValue;
import org.xmlsh.core.io.OutputPort;
import com.amazonaws.services.sqs.model.ListQueuesRequest;
import com.amazonaws.services.sqs.model.ListQueuesResult;
import net.sf.saxon.s9api.SaxonApiException;

public class sqsListQueues extends AWSSQSCommand {

  /**
   * @param args
   * @throws IOException
   */
  @Override
  public int run(List<XValue> args) throws Exception {

    Options opts = getOptions();
    parseOptions(opts, args);

    args = opts.getRemainingArgs();

    setSerializeOpts(this.getSerializeOpts(opts));

    String prefix = null;
    if(args.size() > 0)
      prefix = args.get(0).toString();

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

    }

    int ret;

    ret = list(prefix);

    return ret;

  }

  private int list(String prefix)
      throws IOException, XMLStreamException, SaxonApiException, CoreException {

    OutputPort stdout = getStdout();
    mWriter = stdout.asXMLStreamWriter(getSerializeOpts());

    startDocument();
    startElement(getName());

    ListQueuesRequest request = new ListQueuesRequest();
    if(prefix != null)
      request.setQueueNamePrefix(prefix);
    traceCall("listQueues");

    ListQueuesResult result = getAWSClient().listQueues(request);
    for(String url : result.getQueueUrls()) {
      startElement("queue");
      attribute("url", url);

      endElement();

    }

    endElement();
    endDocument();
    closeWriter();
    stdout.writeSequenceTerminator(getSerializeOpts());

    return 0;

  }

}