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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.    
 */

package org.apache.tuscany.sca.binding.comet.runtime.javascript;

import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.interfacedef.Operation;

public class JavascriptGenerator {

    public static final String JS_NAMESPACE = "SCA";
    private static final String COMPONENT_CONTEXT = "this.CometComponentContext";
    private static final String TUSCANY_COMET = "SCA.TuscanyComet";

    public static StringBuffer javascript = new StringBuffer();

    public static void generateServiceProxy(ComponentService service) {
        javascript.append(COMPONENT_CONTEXT + "." + service.getName() + " = new Object();\n");
    }

    public static void generateMethodProxy(ComponentService service, Operation operation) {
        javascript.append(COMPONENT_CONTEXT + "." + service.getName() + "." + operation.getName() + " = function(");
        for (int i = 0; i < operation.getInputType().getLogical().size(); i++) {
            javascript.append("p" + i + ", ");
        }
        javascript.append("callbackMethod) {\n");
        javascript.append("  var params = [];\n");
        for (int i = 0; i < operation.getInputType().getLogical().size(); i++) {
            javascript.append("  params.push(p" + i + ");\n");
        }
        javascript.append("  " + TUSCANY_COMET
            + ".callAsync('"
            + service.getName()
            + "/"
            + operation.getName()
            + "', $.toJSON(params), callbackMethod);\n");
        javascript.append("}\n");
    }

}