/**
 * 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.cxf.tools.wadlto.jaxrs;

import java.io.File;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.List;

import org.apache.cxf.helpers.FileUtils;
import org.apache.cxf.tools.common.ProcessorTestBase;
import org.apache.cxf.tools.common.ToolContext;
import org.apache.cxf.tools.wadlto.WADLToJava;

import org.junit.Test;

public class WADLToJavaTest extends ProcessorTestBase {

    @Test    
    public void testCodeGenInterfaces() {
        try {
            String[] args = new String[] {
                "-d", 
                output.getCanonicalPath(),
                "-p",
                "custom.service",
                "-tMap",
                "{http://www.w3.org/2001/XMLSchema}date=java.util.List..String",
                "-async getName,delete",
                "-inheritResourceParams first",
                "-compile",
                getLocation("/wadl/bookstore.xml"),
            };
            WADLToJava tool = new WADLToJava(args);
            tool.run(new ToolContext());
            assertNotNull(output.list());
            
            verifyFiles("java", true, false, "superbooks", "custom.service");
            verifyFiles("class", true, false, "superbooks", "custom.service");
            
        } catch (Exception e) {
            e.printStackTrace();
            fail();
        }
    }

    @Test
    public void testGenerateJAXBToString() throws Exception {

        try {
            String[] args = new String[] {
                "-d",
                output.getCanonicalPath(),
                "-p",
                "custom.service",
                "-async getName,delete",
                "-compile",
                "-xjc-episode " + output.getAbsolutePath() + "/test.episode",
                "-xjc-XtoString",
                getLocation("/wadl/bookstore.xml"),
            };

            WADLToJava tool = new WADLToJava(args);
            tool.run(new ToolContext());
            assertNotNull(output.list());

            verifyFiles("java", true, false, "superbooks", "custom.service");
            verifyFiles("class", true, false, "superbooks", "custom.service");
            assertTrue(new File(output.getAbsolutePath() + "/test.episode").exists());

            List<Class<?>> schemaClassFiles = getSchemaClassFiles();
            assertEquals(4, schemaClassFiles.size());
            for (Class<?> c : schemaClassFiles) {
                c.getMethod("toString");
            }
        } catch (Exception e) {
            e.printStackTrace();
            fail();
        }
    }
    
    private List<Class<?>> getSchemaClassFiles() throws Exception {
        URLClassLoader cl = new URLClassLoader(new URL[] {output.toURI().toURL()},
                                            Thread.currentThread().getContextClassLoader());
           
        List<Class<?>> files = new ArrayList<Class<?>>(4);
        files.add(cl.loadClass("superbooks.EnumType"));
        files.add(cl.loadClass("superbooks.Book"));
        files.add(cl.loadClass("superbooks.TheBook2"));
        files.add(cl.loadClass("superbooks.Chapter"));
        cl.close();
        return files;
    }

    @Test
    public void testGenerateJAXBToStringAndEqualsAndHashCode() throws Exception {

        try {
            String[] args = new String[] {
                "-d",
                output.getCanonicalPath(),
                "-p",
                "custom.service",
                "-async getName,delete",
                "-compile",
                "-xjc-XtoString",
                "-xjc-Xequals",
                "-xjc-XhashCode",
                getLocation("/wadl/bookstore.xml"),
            };

            WADLToJava tool = new WADLToJava(args);
            tool.run(new ToolContext());
            assertNotNull(output.list());

            verifyFiles("java", true, false, "superbooks", "custom.service");
            verifyFiles("class", true, false, "superbooks", "custom.service");

            List<Class<?>> schemaClassFiles = getSchemaClassFiles();
            assertEquals(4, schemaClassFiles.size());
            for (Class<?> c : schemaClassFiles) {
                c.getMethod("toString");
                c.getMethod("hashCode");
                c.getMethod("equals", Object.class);
            }
            
        } catch (Exception e) {
            e.printStackTrace();
            fail();
        }
    }


    
    private void verifyFiles(String ext, boolean subresourceExpected, boolean interfacesAndImpl, 
                             String schemaPackage, String resourcePackage) {    
        List<File> files = FileUtils.getFilesRecurse(output, ".+\\." + ext + "$");
        int size = interfacesAndImpl ? 11 : 10;
        if (!subresourceExpected) {
            size--;
        }
        assertEquals(size, files.size());
        doVerifyTypes(files, schemaPackage, ext);
        if (subresourceExpected) {
            assertTrue(checkContains(files, resourcePackage + ".FormInterface." + ext));
        }
        assertTrue(checkContains(files, resourcePackage + ".BookStore." + ext));
        if (interfacesAndImpl) {
            if (subresourceExpected) {
                assertTrue(checkContains(files, resourcePackage + ".FormInterfaceImpl." + ext));
            }
            assertTrue(checkContains(files, resourcePackage + ".BookStoreImpl." + ext));
        }
    }
    
    private void doVerifyTypes(List<File> files, String schemaPackage, String ext) {
        assertTrue(checkContains(files, schemaPackage + ".EnumType." + ext));
        assertTrue(checkContains(files, schemaPackage + ".Book." + ext));
        assertTrue(checkContains(files, schemaPackage + ".TheBook2." + ext));
        assertTrue(checkContains(files, schemaPackage + ".Chapter." + ext));
        assertTrue(checkContains(files, schemaPackage + ".ObjectFactory." + ext));
        assertTrue(checkContains(files, schemaPackage + ".package-info." + ext));
    }
    
    private boolean checkContains(List<File> clsFiles, String name) {
        for (File f : clsFiles) {
            if (checkFileContains(f, name)) {
                return true;
            }
        }
        return false;
    }
    
    private boolean checkFileContains(File f, String name) {
        return f.getAbsolutePath().replace(File.separatorChar, '.').endsWith(name);
    }
    
    protected String getLocation(String wsdlFile) throws URISyntaxException {
        return getClass().getResource(wsdlFile).toString();
    }
}
