/*
 * Copyright 2014 JBoss by Red Hat.
 *
 * 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.jbpm.kie.services.test;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.kie.scanner.MavenRepository.getMavenRepository;

import java.io.File;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.drools.compiler.kie.builder.impl.InternalKieModule;
import org.jbpm.kie.services.impl.KModuleDeploymentUnit;
import org.jbpm.kie.test.util.AbstractBaseTest;
import org.jbpm.services.api.model.DeployedUnit;
import org.jbpm.services.api.model.DeploymentUnit;
import org.jbpm.services.api.model.ProcessDefinition;
import org.junit.After;
import org.junit.Test;
import org.kie.api.KieServices;
import org.kie.api.builder.KieBuilder;
import org.kie.api.builder.KieFileSystem;
import org.kie.api.builder.Message;
import org.kie.api.builder.ReleaseId;
import org.kie.api.builder.model.KieBaseModel;
import org.kie.api.builder.model.KieModuleModel;
import org.kie.api.builder.model.KieSessionModel;
import org.kie.api.conf.EqualityBehaviorOption;
import org.kie.api.conf.EventProcessingOption;
import org.kie.api.runtime.conf.ClockTypeOption;
import org.kie.internal.io.ResourceFactory;
import org.kie.internal.query.QueryContext;
import org.kie.scanner.MavenRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class FilteredKModuleDeploymentServiceTest extends AbstractBaseTest {
    
    private static final Logger logger = LoggerFactory.getLogger(FilteredKModuleDeploymentServiceTest.class);
   
    private List<DeploymentUnit> units = new ArrayList<DeploymentUnit>();
    
    public void prepare(String packages) {
    	configureServices();
    	logger.debug("Preparing kjar");
        KieServices ks = KieServices.Factory.get();
        ReleaseId releaseId = ks.newReleaseId(GROUP_ID, ARTIFACT_ID, VERSION);
        List<String> processes = new ArrayList<String>();
        processes.add("repo/processes/general/customtask.bpmn");
        processes.add("repo/processes/general/humanTask.bpmn");
        
        List<String> processes2 = new ArrayList<String>();
        processes2.add("repo/processes/general/import.bpmn");
        
        InternalKieModule kJar1 = createKieJar(ks, releaseId, processes, processes2, packages);
        File pom = new File("target/kmodule", "pom.xml");
        pom.getParentFile().mkdir();
        try {
            FileOutputStream fs = new FileOutputStream(pom);
            fs.write(getPom(releaseId).getBytes());
            fs.close();
        } catch (Exception e) {
            
        }
        MavenRepository repository = getMavenRepository();
        repository.deployArtifact(releaseId, kJar1, pom);
    }
    
    @After
    public void cleanup() {
        cleanupSingletonSessionId();
        if (units != null && !units.isEmpty()) {
            for (DeploymentUnit unit : units) {
                deploymentService.undeploy(unit);
            }
            units.clear();
        }
        close();
    }
    
    @Test
    public void testDeploymentOfProcessesFromCustomerPackageDeafultKBase() {
        prepare("customer.repo.processes.general");
        assertNotNull(deploymentService);
        
        DeploymentUnit deploymentUnit = new KModuleDeploymentUnit(GROUP_ID, ARTIFACT_ID, VERSION);
        
        deploymentService.deploy(deploymentUnit);
        units.add(deploymentUnit);
        
        DeployedUnit deployed = deploymentService.getDeployedUnit(deploymentUnit.getIdentifier());
        assertNotNull(deployed);
        assertNotNull(deployed.getDeploymentUnit());
        assertNotNull(deployed.getRuntimeManager());
        assertEquals(GROUP_ID+":"+ARTIFACT_ID+":"+VERSION, 
                deployed.getDeploymentUnit().getIdentifier());

        assertNotNull(runtimeDataService);
        Collection<ProcessDefinition> processes = runtimeDataService.getProcesses(new QueryContext());
        assertNotNull(processes);
        assertEquals(2, processes.size());
        
        processes = runtimeDataService.getProcessesByFilter("custom", new QueryContext());
        assertNotNull(processes);
        assertEquals(1, processes.size());
        
        processes = runtimeDataService.getProcessesByDeploymentId(deploymentUnit.getIdentifier(), new QueryContext());
        assertNotNull(processes);
        assertEquals(2, processes.size());
        
        ProcessDefinition process = runtimeDataService.getProcessById("customtask");
        assertNotNull(process);
 
    }
    
    @Test
    public void testDeploymentOfProcessesFromCustomerPackage() {
        prepare("customer.repo.processes.general");
        assertNotNull(deploymentService);
        
        DeploymentUnit deploymentUnit = new KModuleDeploymentUnit(GROUP_ID, ARTIFACT_ID, VERSION, "KBase-test", "ksession-test");
        
        deploymentService.deploy(deploymentUnit);
        units.add(deploymentUnit);
        
        DeployedUnit deployed = deploymentService.getDeployedUnit(deploymentUnit.getIdentifier());
        assertNotNull(deployed);
        assertNotNull(deployed.getDeploymentUnit());
        assertNotNull(deployed.getRuntimeManager());
        assertEquals(GROUP_ID+":"+ARTIFACT_ID+":"+VERSION+":"+"KBase-test"+":"+"ksession-test", 
                deployed.getDeploymentUnit().getIdentifier());

        assertNotNull(runtimeDataService);
        Collection<ProcessDefinition> processes = runtimeDataService.getProcesses(new QueryContext());
        assertNotNull(processes);
        assertEquals(2, processes.size());
        
        processes = runtimeDataService.getProcessesByFilter("custom", new QueryContext());
        assertNotNull(processes);
        assertEquals(1, processes.size());
        
        processes = runtimeDataService.getProcessesByDeploymentId(deploymentUnit.getIdentifier(), new QueryContext());
        assertNotNull(processes);
        assertEquals(2, processes.size());
        
        ProcessDefinition process = runtimeDataService.getProcessById("customtask");
        assertNotNull(process);
 
    }
    
    @Test
    public void testDeploymentOfProcessesFromOrderPackage() {
        prepare("order.repo.processes.general");
        assertNotNull(deploymentService);
        
        DeploymentUnit deploymentUnit = new KModuleDeploymentUnit(GROUP_ID, ARTIFACT_ID, VERSION, "KBase-test", "ksession-test");
        
        deploymentService.deploy(deploymentUnit);
        units.add(deploymentUnit);
        
        DeployedUnit deployed = deploymentService.getDeployedUnit(deploymentUnit.getIdentifier());
        assertNotNull(deployed);
        assertNotNull(deployed.getDeploymentUnit());
        assertNotNull(deployed.getRuntimeManager());
        assertEquals(GROUP_ID+":"+ARTIFACT_ID+":"+VERSION+":"+"KBase-test"+":"+"ksession-test", 
                deployed.getDeploymentUnit().getIdentifier());

        assertNotNull(runtimeDataService);
        Collection<ProcessDefinition> processes = runtimeDataService.getProcesses(new QueryContext());
        assertNotNull(processes);
        assertEquals(1, processes.size());
        
        processes = runtimeDataService.getProcessesByDeploymentId(deploymentUnit.getIdentifier(), new QueryContext());
        assertNotNull(processes);
        assertEquals(1, processes.size());
        
        ProcessDefinition process = runtimeDataService.getProcessById("Import");
        assertNotNull(process);
 
    }
    
    @Test
    public void testDeploymentOfProcessesWildcardPackage() {
        prepare("customer.*");
        assertNotNull(deploymentService);
        
        DeploymentUnit deploymentUnit = new KModuleDeploymentUnit(GROUP_ID, ARTIFACT_ID, VERSION, "KBase-test", "ksession-test");
        
        deploymentService.deploy(deploymentUnit);
        units.add(deploymentUnit);
        
        DeployedUnit deployed = deploymentService.getDeployedUnit(deploymentUnit.getIdentifier());
        assertNotNull(deployed);
        assertNotNull(deployed.getDeploymentUnit());
        assertNotNull(deployed.getRuntimeManager());
        assertEquals(GROUP_ID+":"+ARTIFACT_ID+":"+VERSION+":"+"KBase-test"+":"+"ksession-test", 
                deployed.getDeploymentUnit().getIdentifier());

        assertNotNull(runtimeDataService);
        Collection<ProcessDefinition> processes = runtimeDataService.getProcesses(new QueryContext());
        assertNotNull(processes);
        assertEquals(2, processes.size());
        
        processes = runtimeDataService.getProcessesByFilter("custom", new QueryContext());
        assertNotNull(processes);
        assertEquals(1, processes.size());
        
        processes = runtimeDataService.getProcessesByDeploymentId(deploymentUnit.getIdentifier(), new QueryContext());
        assertNotNull(processes);
        assertEquals(2, processes.size());
        
        ProcessDefinition process = runtimeDataService.getProcessById("customtask");
        assertNotNull(process);
 
    }
    
   protected InternalKieModule createKieJar(KieServices ks, ReleaseId releaseId, List<String> resources, List<String> resources2, String packages ) {
     
        
        KieFileSystem kfs = createKieFileSystemWithKProject(ks, packages);
        kfs.writePomXML( getPom(releaseId) );

        
        for (String resource : resources) {
            kfs.write("src/main/resources/customer/" + resource, ResourceFactory.newClassPathResource(resource));
        }
        for (String resource : resources2) {
            kfs.write("src/main/resources/order/" + resource, ResourceFactory.newClassPathResource(resource));
        }
       
        KieBuilder kieBuilder = ks.newKieBuilder(kfs);
        if (!kieBuilder.buildAll().getResults().getMessages().isEmpty()) {
            for (Message message : kieBuilder.buildAll().getResults().getMessages()) {
                logger.error("Error Message: ({}) {}", message.getPath(), message.getText());
            }
            throw new RuntimeException(
                    "There are errors builing the package, please check your knowledge assets!");
        }
        
        return ( InternalKieModule ) kieBuilder.getKieModule();
    }

    

    protected KieFileSystem createKieFileSystemWithKProject(KieServices ks, String packages) {
        KieModuleModel kproj = ks.newKieModuleModel();

        KieBaseModel kieBaseModel1 = kproj.newKieBaseModel("KBase-test").setDefault(true).addPackage(packages)
                .setEqualsBehavior( EqualityBehaviorOption.EQUALITY )
                .setEventProcessingMode( EventProcessingOption.STREAM );

    
        kieBaseModel1.newKieSessionModel("ksession-test").setDefault(true)
                .setType(KieSessionModel.KieSessionType.STATEFUL)
                .setClockType( ClockTypeOption.get("realtime") )
                .newWorkItemHandlerModel("Log", "new org.jbpm.process.instance.impl.demo.SystemOutWorkItemHandler()");
        KieFileSystem kfs = ks.newKieFileSystem();
        kfs.writeKModuleXML(kproj.toXML());
        return kfs;
    }
}
