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

package org.xmlsh.aws;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import javax.xml.stream.XMLStreamException;

import net.sf.saxon.s9api.SaxonApiException;

import org.xmlsh.aws.util.AWSCFNCommand;
import org.xmlsh.aws.util.SafeXMLStreamWriter;
import org.xmlsh.core.CoreException;
import org.xmlsh.core.Options;
import org.xmlsh.core.OutputPort;
import org.xmlsh.core.UnexpectedException;
import org.xmlsh.core.XValue;
import org.xmlsh.util.Util;

import com.amazonaws.services.cloudformation.model.Parameter;
import com.amazonaws.services.cloudformation.model.UpdateStackRequest;
import com.amazonaws.services.cloudformation.model.UpdateStackResult;

public class cfnUpdateStack extends AWSCFNCommand {



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



        Options opts = getOptions("capability:+,name:,template-file=f:,template-url=url:");
        parseOptions(opts, args);

        args = opts.getRemainingArgs();

        setSerializeOpts(this.getSerializeOpts(opts));


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

        }


        int ret = updateStack(args, opts);



        return ret;


    }



    private int updateStack(List<XValue> args, Options opts) throws IOException, XMLStreamException, SaxonApiException, CoreException {


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


        startDocument();
        startElement(getName());



        UpdateStackRequest request = new UpdateStackRequest();


        // "capability:+,disable-rollback,notification-arn:+,name:,template:,timeout:,tag:+");

        if( opts.hasOpt("capability") )
            request.setCapabilities(Util.toStringList(opts.getOptValues("capability")));



        request.setStackName( opts.getOptStringRequired("name"));

        if( opts.hasOpt("template-file"))
            request.setTemplateBody( Util.readString( mShell.getFile(opts.getOptValue("template-file")), getSerializeOpts().getInput_text_encoding()));
        else
            request.setTemplateURL( opts.getOptStringRequired("template-url"));


        request.setParameters(getParameters( args ));

        traceCall("updateStack");

        UpdateStackResult result = mAmazon.updateStack(request);

        writeStackResult(result);




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

        stdout.writeSequenceTerminator(getSerializeOpts());
        stdout.release();

        return 0;

    }



    private Collection<Parameter> getParameters(List<XValue> args) {
        int sz = args.size();
        Collection<Parameter> params = new ArrayList<Parameter>( sz );
        for( int i = 0 ; i < sz ; i += 2 ){
            String name = args.get(i).toString();
            String value = args.get(i+1).toString();
            params.add( new Parameter().withParameterKey(name).withParameterValue(value)) ;

        }
        return params;


    }






    private void writeStackResult(UpdateStackResult result) throws XMLStreamException {
        startElement("stack");
        attribute("stack-id",result.getStackId());
        endElement();

    }


}



/*
 * 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
 * 
 */