/**
 * Copyright 2010 JBoss Inc
 *
 * Licensed 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.drools.osworkflow.test;

import java.io.StringReader;
import java.util.Collection;
import java.util.Collections;

import junit.framework.TestCase;

import org.drools.compiler.PackageBuilderConfiguration;
import org.drools.osworkflow.DroolsWorkflow;
import org.drools.osworkflow.OSWorkflowParser;
import org.drools.osworkflow.composite.CompositeWorkflow;
import org.drools.osworkflow.core.OSWorkflowProcess;
import org.drools.osworkflow.xml.XmlOSWorkflowProcessDumper;
import org.drools.xml.XmlProcessReader;

import com.opensymphony.workflow.InvalidInputException;
import com.opensymphony.workflow.Workflow;
import com.opensymphony.workflow.WorkflowException;
import com.opensymphony.workflow.config.DefaultConfiguration;
import com.opensymphony.workflow.loader.WorkflowDescriptor;
import com.opensymphony.workflow.spi.Step;
import com.opensymphony.workflow.spi.WorkflowEntry;

public class SimpleProcessTest extends TestCase {
	
	public void testSimpleProcess() {
		Workflow workflow = new DroolsWorkflow();
		DefaultConfiguration config = new DefaultConfiguration();
		workflow.setConfiguration(config);
		try {
		    long workflowId = workflow.initialize("simple", 1, null);
			
			Collection<Step> currentSteps = workflow.getCurrentSteps(workflowId);
            //verify we only have one current step
            assertEquals("Unexpected number of current steps", 1, currentSteps.size());
            //verify it's step 1
            Step currentStep = currentSteps.iterator().next();
            assertEquals("Unexpected current step", 1, currentStep.getStepId());

            int[] availableActions = workflow.getAvailableActions(workflowId, Collections.EMPTY_MAP);
            //verify we only have one available action
            assertEquals("Unexpected number of available actions", 1, availableActions.length);
            //verify it's action 2
            assertEquals("Unexpected available action", 2, availableActions[0]);
            
            workflow.doAction(workflowId, 2, null);
            currentSteps = workflow.getCurrentSteps(workflowId);
            //verify we only have one current step
            assertEquals("Unexpected number of current steps", 1, currentSteps.size());
            //verify it's step 1
            currentStep = currentSteps.iterator().next();
            assertEquals("Unexpected current step", 1, currentStep.getStepId());
            
            availableActions = workflow.getAvailableActions(workflowId, Collections.EMPTY_MAP);
            //verify we only have one available action
            assertEquals("Unexpected number of available actions", 1, availableActions.length);
            //verify it's action 3
            assertEquals("Unexpected available action", 3, availableActions[0]);
            
            workflow.doAction(workflowId, 3, null);
            currentSteps = workflow.getCurrentSteps(workflowId);
            //verify we only have no more current steps
            assertEquals("Unexpected number of current steps", 0, currentSteps.size());
            //verify process completed
            assertEquals("Unexpected state", WorkflowEntry.COMPLETED, workflow.getEntryState(workflowId));

            availableActions = workflow.getAvailableActions(workflowId, Collections.EMPTY_MAP);
            //verify we only have no available action
            assertEquals("Unexpected number of available actions", 0, availableActions.length);
		} catch (InvalidInputException e) {
			e.printStackTrace();
			fail(e.getMessage());
		} catch (WorkflowException e) {
            e.printStackTrace();
            fail(e.getMessage());
        }
	}
	
	public void testToXML() throws Exception {
        DefaultConfiguration config = new DefaultConfiguration();
        config.load(null);
        WorkflowDescriptor workflowDescriptor = config.getWorkflow("simple");
	    OSWorkflowProcess process = new OSWorkflowParser().parseOSWorkflow(workflowDescriptor);
	    
	    String processXML = XmlOSWorkflowProcessDumper.INSTANCE.dump(process);
	    System.out.println(processXML);
	    
	    XmlProcessReader reader = new XmlProcessReader(
            new PackageBuilderConfiguration().getSemanticModules());
	    System.setProperty( "drools.schema.validating", "false" );
	    OSWorkflowProcess process2 = (OSWorkflowProcess) reader.read(new StringReader(processXML));
        assertNotNull(process2);
	}

}