/*
 * 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.axis2.tool.codegen;


import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.WSDL11ToAxisServiceBuilder;
import org.apache.axis2.util.CommandLineOption;
import org.apache.axis2.util.CommandLineOptionConstants;

import javax.wsdl.WSDLException;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;


public class WSDL2JavaGenerator {
    
    /**
     * Maps a string containing the name of a language to a constant defined in CommandLineOptionConstants.LanguageNames
     * 
     * @param UILangValue a string containg a language, e.g. "java", "cs", "cpp" or "vb"
     * @return a normalized string constant
     */
    private String mapLanguagesWithCombo(String UILangValue)
    {
       return UILangValue;
    }
    /**
     * Creates a list of parameters for the code generator based on the decisions made by the user on the OptionsPage
     * (page2). For each setting, there is a Command-Line option for the Axis2 code generator.
     * 
     * @return a Map with keys from CommandLineOptionConstants with the values entered by the user on the Options Page.
     */
    public Map fillOptionMap(boolean isAyncOnly,
            		  boolean isSyncOnly,
            		  boolean isServerSide,
            		  boolean isServerXML,
            		  boolean isTestCase,
            		  boolean isGenerateAll,
            		  String serviceName,
            		  String portName,
            		  String databindingName,
            		  String WSDLURI,
            		  String packageName,
            		  String selectedLanguage,
            		  String outputLocation,
            		  String namespace2packageList,
            		  boolean isServerSideInterface,
            		  HashMap advanceOptions
            		  )
    {
       Map optionMap = new HashMap();
       //WSDL file name
       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.WSDL_LOCATION_URI_OPTION, new CommandLineOption(
    		   CommandLineOptionConstants.WSDL2JavaConstants.WSDL_LOCATION_URI_OPTION, getStringArray(WSDLURI)));
       
       //Async only
       if (isAyncOnly)
       {
          optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_ASYNC_ONLY_OPTION, new CommandLineOption(
        		  CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_ASYNC_ONLY_OPTION, new String[0]));
       }
       //sync only
       if (isSyncOnly)
       {
          optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_SYNC_ONLY_OPTION, new CommandLineOption(
        		  CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_SYNC_ONLY_OPTION, new String[0]));
       }
       //serverside
       if (isServerSide)
       {
          optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.SERVER_SIDE_CODE_OPTION, new CommandLineOption(
        		  CommandLineOptionConstants.WSDL2JavaConstants.SERVER_SIDE_CODE_OPTION, new String[0]));
          //server xml
          if (isServerXML)
          {
             optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.GENERATE_SERVICE_DESCRIPTION_OPTION, new CommandLineOption(
            		 CommandLineOptionConstants.WSDL2JavaConstants.GENERATE_SERVICE_DESCRIPTION_OPTION, new String[0]));
          }
          if (isGenerateAll){
              optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.GENERATE_ALL_OPTION, new CommandLineOption(
            		  CommandLineOptionConstants.WSDL2JavaConstants.GENERATE_ALL_OPTION, new String[0]));
          }
       }
       //test case
       if (isTestCase)
       {
          optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.GENERATE_TEST_CASE_OPTION, new CommandLineOption(
        		  CommandLineOptionConstants.WSDL2JavaConstants.GENERATE_TEST_CASE_OPTION, new String[0]));
       }
       //package name
       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.PACKAGE_OPTION, new CommandLineOption(
    		   CommandLineOptionConstants.WSDL2JavaConstants.PACKAGE_OPTION, getStringArray(packageName)));
       //selected language
       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.STUB_LANGUAGE_OPTION, new CommandLineOption(
    		   CommandLineOptionConstants.WSDL2JavaConstants.STUB_LANGUAGE_OPTION, getStringArray(mapLanguagesWithCombo(selectedLanguage))));
       //output location
       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.OUTPUT_LOCATION_OPTION, new CommandLineOption(
    		   CommandLineOptionConstants.WSDL2JavaConstants.OUTPUT_LOCATION_OPTION, getStringArray(outputLocation)));
       
      //databinding
       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.DATA_BINDING_TYPE_OPTION, new CommandLineOption(
    		   CommandLineOptionConstants.WSDL2JavaConstants.DATA_BINDING_TYPE_OPTION, getStringArray(databindingName)));
       
       //port name
       if (portName!=null){
	       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.PORT_NAME_OPTION, new CommandLineOption(
	    		   CommandLineOptionConstants.WSDL2JavaConstants.PORT_NAME_OPTION, getStringArray(portName)));
       }
       //service name
       if (serviceName!= null){
	       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.SERVICE_NAME_OPTION, new CommandLineOption(
	    		   CommandLineOptionConstants.WSDL2JavaConstants.SERVICE_NAME_OPTION, getStringArray(serviceName)));
       }
       //ns2pkg mapping
       if (namespace2packageList!= null){
	       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.NAME_SPACE_TO_PACKAGE_OPTION, new CommandLineOption(
	    		   CommandLineOptionConstants.WSDL2JavaConstants.NAME_SPACE_TO_PACKAGE_OPTION, getStringArray(namespace2packageList)));
       }
       
       //server side interface  mapping
       if (isServerSideInterface){
	       optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.SERVER_SIDE_INTERFACE_OPTION, new CommandLineOption(
	    		   CommandLineOptionConstants.WSDL2JavaConstants.SERVER_SIDE_INTERFACE_OPTION, new String[0]));
       }
       
       if (advanceOptions != null) {
			for (Iterator iterator = advanceOptions.entrySet().iterator(); iterator.hasNext();) {
				Entry entry=(Entry) iterator.next();
				String key=(String) entry.getKey();
				String[] value=(String[]) entry.getValue();
				if (value == null) {
					value = new String[0];
				}
				optionMap.put(key, new CommandLineOption(key, value));
			}
		}
       return optionMap;
       
    }
    
    public String getBaseUri(String wsdlURI){
    	
    	try {
			URL url;
			if (wsdlURI.indexOf("://")==-1){
				url = new URL("file","",wsdlURI);
			}else{
				url = new URL(wsdlURI);	
			}

			
			String baseUri;
			if ("file".equals(url.getProtocol())){
				baseUri = new File(url.getFile()).getParentFile().toURI().toURL().toExternalForm();
			}else{
				baseUri = url.toExternalForm().substring(0,
						url.toExternalForm().lastIndexOf("/")
				);
			}
		
			
			return baseUri;
		} catch (MalformedURLException e) {
			throw new RuntimeException(e);
		}
    }
    /**
     * Reads the WSDL Object Model from the given location.
     * 
     * @param wsdlURI the filesystem location (full path) of the WSDL file to read in.
     * @return the WSDLDescription object containing the WSDL Object Model of the given WSDL file
     * @throws WSDLException when WSDL File is invalid
     * @throws IOException on errors reading the WSDL file
     */
    public AxisService getAxisService(String wsdlURI) throws Exception{
    	
    		URL url;
			if (wsdlURI.indexOf("://")==-1){
				url = new URL("file","",wsdlURI);
			}else{
				url = new URL(wsdlURI);	
			}

	    // This quick fix assume that the wsdlURI points to a wsdl 1.1 version.
			// A better fix should be to determine which builder to use based on the wsdl version. 
			// The current implementation of the wsdl builder classes did not allow for this. I will suggest
			// that the determination of which builder to use should be done in the builder classes, preferably
			// in the parent builder class. 
			// Accessable through a static reference to a method like getBuilderInstance(String wsdlURI) in
			// the parent builder class or through a builder Abstract Factor or Abstract factory methods.
			
			WSDL11ToAxisServiceBuilder builder = new WSDL11ToAxisServiceBuilder(url.openConnection().getInputStream());
					
                        // Set the URI of the base document for the Definition.
                        // Note that this is the URI of the base document, not the imports.
                        builder.setDocumentBaseUri(url.toString());

			builder.setBaseUri(getBaseUri(wsdlURI));
			builder.setCodegen(true);
			return builder.populateService();
    }

    /**
     * Converts a single String into a String Array
     * 
     * @param value a single string
     * @return an array containing only one element
     */
    private String[] getStringArray(String value)
    {
       String[] values = new String[1];
       values[0] = value;
       return values;
    }
}