/*
 * 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.openjena.riot.lang;


import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream ;
import java.io.Reader ;

import junit.framework.TestCase ;
import org.openjena.atlas.io.PeekReader ;
import org.openjena.riot.RiotParseException ;
import org.openjena.riot.SysRIOT ;
import org.openjena.riot.system.JenaReaderRdfJson ;
import org.openjena.riot.system.JenaWriterRdfJson;

import com.hp.hpl.jena.rdf.model.Model ;
import com.hp.hpl.jena.rdf.model.ModelFactory ;
import com.hp.hpl.jena.rdf.model.RDFReader ;
import com.hp.hpl.jena.rdf.model.RDFWriter;
import com.hp.hpl.jena.util.FileManager ;

public class UnitTestRDFJSON extends TestCase
{
    static { SysRIOT.wireIntoJena() ; }
    String input ;
    String output ;
    String baseIRI ;
    
    public UnitTestRDFJSON(String name, String input, String output, String baseIRI)
    {
        super(name) ;
        this.input = input ;
        this.output = output ;
        this.baseIRI = baseIRI ;
    }
    
    @Override
    public void runTest()
    {
    	testJenaReaderRdfJson() ;
    	testJenaWriterRdfJson() ;
    }
    
    private void testJenaReaderRdfJson() 
    {
        Model model = ModelFactory.createDefaultModel() ;
        RDFReader t = new JenaReaderRdfJson() ;
        try {
            if ( baseIRI != null )
            {
                InputStream in =  FileManager.get().open(input) ;
                Reader r = PeekReader.makeUTF8(in) ;
                t.read(model, r, baseIRI) ;
            }
            else
                t.read(model, input) ;  

            Model results = FileManager.get().loadModel(output) ;

            boolean b = model.isIsomorphicWith(results) ;
            if ( !b )
            {
            	write ( model, results ) ;
            }
            
            assertTrue("Models not isomorphic", b) ;
        } catch (RiotParseException ex)
        {
            // Catch and retrhow - debugging.
            throw ex ;    
        }
        catch (RuntimeException ex) 
        { 
            ex.printStackTrace(System.err) ;
            throw ex ; 
        }
    }

    private void testJenaWriterRdfJson() 
    {
    	Model results = FileManager.get().loadModel(output) ;

        RDFWriter writer = new JenaWriterRdfJson() ;
        ByteArrayOutputStream baos = new ByteArrayOutputStream() ;
        writer.write(results, baos, baseIRI) ;

        InputStream in = new ByteArrayInputStream(baos.toByteArray()) ;
        Model model = ModelFactory.createDefaultModel() ;
        RDFReader reader = new JenaReaderRdfJson() ;
        try {
            if ( baseIRI != null )
            {
                Reader r = PeekReader.makeUTF8(in) ;
                reader.read(model, r, baseIRI) ;
            }
            else
                reader.read(model, in, null) ;  

            boolean b = model.isIsomorphicWith(results) ;
            if ( !b )
            {
            	write ( model, results ) ;
                System.out.println("---- Parsed");
                // model.write(System.out, "RDF/JSON") ;
                writer.write(model, System.out, baseIRI) ; // for now, until the plumbing with Jena gets released. See JENA-135
                System.out.println("---- Expected");
                // results.write(System.out, "RDF/JSON") ;
                writer.write(results, System.out, baseIRI) ; 
                System.out.println("--------");
            }
            
            assertTrue("Models not isomorphic", b) ;
        } catch (RiotParseException ex)
        {
            // Catch and retrhow - debugging.
            throw ex ;    
        }
        catch (RuntimeException ex) 
        { 
            ex.printStackTrace(System.err) ;
            throw ex ; 
        }
    }

    private void write (Model parsed, Model expected)
    {
    	// This is temporary, until the plumbing with Jena gets released (or ARQ depends on the jena-core SNAPSHOT). See: JENA-135
    	RDFWriter writer = new JenaWriterRdfJson() ;
        System.out.println("---- Parsed");
        // parsed.write(System.out, "RDF/JSON") ;
        writer.write(parsed, System.out, baseIRI) ; 
        System.out.println("---- Expected");
        // expected.write(System.out, "RDF/JSON") ;
        writer.write(expected, System.out, baseIRI) ;
        System.out.println("--------");
    }

}