/*
 * 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.tools.bean;

import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.ModuleRootManager;
import com.intellij.openapi.vfs.VirtualFile;
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 org.apache.axis2.util.URLProcessor;
import org.apache.axis2.wsdl.WSDLUtil;
import org.apache.axis2.wsdl.codegen.CodeGenConfiguration;
import org.apache.axis2.wsdl.codegen.CodeGenerationEngine;

import javax.wsdl.Definition;
import javax.wsdl.Port;
import javax.wsdl.Service;
import javax.wsdl.WSDLException;
import javax.wsdl.xml.WSDLReader;
import javax.xml.namespace.QName;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

public class CodegenBean {

    private String WSDLFileName =null ;
    private String output = ".";
    private String packageName = URLProcessor.DEFAULT_PACKAGE;
    private String language = "java";

    private boolean asyncOnly = false;
    private boolean syncOnly = false;
    private boolean serverSide = false;
    private boolean testcase = true;
    private boolean isServerXML;
    private boolean isGenerateAll;
    private boolean isTestCase;
    private String serviceName;
    private String portName;
    private String databindingName;

    private String namespace2packageList;

    private Definition wsdlDefinition = null;

    private boolean defaultClient = true;

    private Project project;

    private boolean isServerSideInterface = true;

    public void setNamespace2packageList(String namespace2packageList) {
        this.namespace2packageList = namespace2packageList;
    }



    public boolean isServerSideInterface() {
        return isServerSideInterface;
    }

    public void setServerSideInterface(boolean serverSideInterface) {
        isServerSideInterface = serverSideInterface;
    }




    public boolean isDefaultClient() {
        return defaultClient;
    }

    public void setDefaultClient(boolean defaultClient) {
        this.defaultClient = defaultClient;
    }

    public boolean isServerXML() {
        return isServerXML;
    }

    public void setServerXML(boolean serverXML) {
        isServerXML = serverXML;
    }

    public boolean isGenerateAll() {
        return isGenerateAll;
    }

    public void setGenerateAll(boolean generateAll) {
        isGenerateAll = generateAll;
    }

    public boolean isTestCase() {
        return isTestCase;
    }

    public void setTestCase(boolean testCase) {
        isTestCase = testCase;
    }

    public String getServiceName() {
        return serviceName;
    }

    public void setServiceName(String serviceName) {
        this.serviceName = serviceName;
    }

    public String getPortName() {
        return portName;
    }

    public void setPortName(String portName) {
        this.portName = portName;
    }

    public String getDatabindingName() {
        return databindingName;
    }

    public void setDatabindingName(String databindingName) {
        this.databindingName = databindingName;
    }

    /**
     * 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() {
        Map optionMap = new HashMap();
        //WSDL file name
        optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.WSDL_LOCATION_URI_OPTION, new CommandLineOption(
                CommandLineOptionConstants.WSDL2JavaConstants.WSDL_LOCATION_URI_OPTION, getStringArray(WSDLFileName)));

        //Async only
        if (asyncOnly) {
            optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_ASYNC_ONLY_OPTION, new CommandLineOption(
                    CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_ASYNC_ONLY_OPTION, new String[0]));
        }
        //sync only
        if (syncOnly) {
            optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_SYNC_ONLY_OPTION, new CommandLineOption(
                    CommandLineOptionConstants.WSDL2JavaConstants.CODEGEN_SYNC_ONLY_OPTION, new String[0]));
        }
        //serverside
        if (serverSide) {
            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]));
            }
            if (isServerSideInterface ) {
                optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.SERVER_SIDE_INTERFACE_OPTION, new CommandLineOption(
                        CommandLineOptionConstants.WSDL2JavaConstants.SERVER_SIDE_INTERFACE_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(language))));
        //output location
        optionMap.put(CommandLineOptionConstants.WSDL2JavaConstants.OUTPUT_LOCATION_OPTION, new CommandLineOption(
                CommandLineOptionConstants.WSDL2JavaConstants.OUTPUT_LOCATION_OPTION, getStringArray(output)));

        //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)));
        }
        //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]));
        }

        //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)));
        }
        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 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);
        }


        WSDL11ToAxisServiceBuilder builder =
                new WSDL11ToAxisServiceBuilder(url.openConnection().getInputStream());

        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;
    }

    public String getWSDLFileName() {
        return WSDLFileName;
    }

    public void setWSDLFileName(String WSDLFileName) {
        this.WSDLFileName = WSDLFileName;
    }

    public boolean isSyncOnly() {
        return syncOnly;
    }

    public void setSyncOnly(boolean syncOnly) {
        this.syncOnly = syncOnly;
    }

    public boolean isAsyncOnly() {
        return asyncOnly;
    }

    public void setAsyncOnly(boolean asyncOnly) {
        this.asyncOnly = asyncOnly;
    }

    public String getLanguage() {
        return language;
    }

    public void setLanguage(String language) {
        this.language = language;
    }

    public String getPackageName() {
        return packageName;
    }

    public void setPackageName(String packageName) {
        this.packageName = packageName;
    }

    public String getOutput() {
        return output;
    }

    public void setOutput(String output) {
        this.output = output;
    }

    public boolean isServerSide() {
        return serverSide;
    }

    public void setServerSide(boolean serverSide) {
        this.serverSide = serverSide;
    }

    public boolean isTestcase() {
        return testcase;
    }

    public void setTestcase(boolean testcase) {
        this.testcase = testcase;
    }

    public void generate() throws Exception {


        ClassLoader tcl = Thread.currentThread().getContextClassLoader();
        try {
            if (!"xmlbeans".equals(getDatabindingName())) {
                Thread.currentThread().setContextClassLoader(Class.class.getClassLoader());
            }
            CodeGenConfiguration codegenConfig = new CodeGenConfiguration(fillOptionMap());
            codegenConfig.addAxisService(getAxisService(WSDLFileName));
            codegenConfig.setWsdlDefinition(wsdlDefinition);
            //set the baseURI
            codegenConfig.setBaseURI(getBaseUri(WSDLFileName));
            new CodeGenerationEngine(codegenConfig).generate();
        } catch (Throwable e) {
            try {
                CodeGenConfiguration codegenConfig = new CodeGenConfiguration(fillOptionMap());
                codegenConfig.addAxisService(getAxisService(WSDLFileName));
                codegenConfig.setWsdlDefinition(wsdlDefinition);
                //set the baseURI
                codegenConfig.setBaseURI(getBaseUri(WSDLFileName));
                new CodeGenerationEngine(codegenConfig).generate();
            } catch (Throwable e1) {
                throw new Exception("Code generation failed due to " + e.getLocalizedMessage());
            }
        } finally {
            if (!"xmlbeans".equals(getDatabindingName())) {
                Thread.currentThread().setContextClassLoader(tcl);
            }

        }
    }



    public void readWSDL() throws WSDLException {

    	WSDLReader reader = WSDLUtil.newWSDLReaderWithPopulatedExtensionRegistry();
        wsdlDefinition = reader.readWSDL(WSDLFileName) ;
        if (wsdlDefinition != null) {
            wsdlDefinition.setDocumentBaseURI(WSDLFileName);
        }

    }

    //get the default package derived by the targetNamespace

    public String packageFromTargetNamespace() {
        return URLProcessor.makePackageName(wsdlDefinition.getTargetNamespace());

    }

    /**
     * Returns a list of service names
     * the names are QNames
     */
    public List getServiceList() {
        List returnList = new ArrayList();
        Service service = null;
        Map serviceMap = wsdlDefinition.getServices();
        if (serviceMap != null && !serviceMap.isEmpty()) {
            Iterator serviceIterator = serviceMap.values().iterator();
            while (serviceIterator.hasNext()) {
                service = (Service) serviceIterator.next();
                returnList.add(service.getQName());
            }
        }

        return returnList;
    }

    /**
     * Returns a list of ports for a particular service
     * the names are QNames
     */
    public List getPortNameList(QName serviceName) {
        List returnList = new ArrayList();
        Service service = wsdlDefinition.getService(serviceName);
        Port port = null;
        if (service != null) {
            Map portMap = service.getPorts();
            if (portMap != null && !portMap.isEmpty()) {
                Iterator portIterator = portMap.values().iterator();
                while (portIterator.hasNext()) {
                    port = (Port) portIterator.next();
                    returnList.add(port.getName());
                }
            }

        }

        return returnList;
    }


    public Project getActiveProject() {
        return project;

    }

    public void setProject(Project project) {
        this.project = project;
    }


    public File getTemp() {

        String time = Calendar.getInstance().getTime().toString().replace(':', '-');
        return new File( getOutput() + File.separator + "temp-" + time);

    }

    public Module[] getModules() {

        Project project = getActiveProject();
        if (project != null) {
            return ModuleManager.getInstance(project).getModules();
        }
        return null;
    }

    public String[] getModuleSrc(String name) {
        Project project = getActiveProject();
        if (project != null) {
            Module module = ModuleManager.getInstance(project).findModuleByName(name);
            ModuleRootManager moduleRootManager = ModuleRootManager.getInstance(module);
            VirtualFile virtualFiles[] = moduleRootManager.getSourceRoots();
            String src[] = new String[virtualFiles.length];
            for (int count = 0; count < src.length; count++) {
                src[count] = virtualFiles[count].getPresentableUrl();
            }
            return src;
        }
        return null;
    }

    /*
	 * Returns the namespace map from definition
	 * @return
	 */
    public Collection getDefinitionNamespaceMap(){

        Map namespaces = wsdlDefinition.getNamespaces();
        return namespaces.values() ;

    }


}



