package org.jbpm.services.task.audit.service;

import static org.jbpm.query.QueryBuilderCoverageTestUtil.hackTheDatabaseMetadataLoggerBecauseTheresALogbackXmlInTheClasspath;
import static org.jbpm.query.QueryBuilderCoverageTestUtil.queryBuilderCoverageTest;

import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;

import org.jbpm.persistence.correlation.JPACorrelationKeyFactory;
import org.jbpm.query.QueryBuilderCoverageTestUtil.ModuleSpecificInputFiller;
import org.jbpm.services.task.HumanTaskServicesBaseTest;
import org.jbpm.services.task.audit.BAMTaskSummaryQueryBuilder;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.kie.api.task.model.Status;
import org.kie.internal.process.CorrelationKey;
import org.kie.internal.task.api.TaskVariable;
import org.kie.internal.task.api.TaskVariable.VariableType;
import org.kie.internal.task.api.model.TaskEvent.TaskEventType;
import org.kie.internal.task.query.AuditTaskQueryBuilder;
import org.kie.internal.task.query.TaskEventQueryBuilder;
import org.kie.internal.task.query.TaskVariableQueryBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import bitronix.tm.resource.jdbc.PoolingDataSource;

public class TaskAuditQueryBuilderCoverageTest extends HumanTaskServicesBaseTest {

    private static final Logger logger = LoggerFactory.getLogger(TaskAuditQueryBuilderCoverageTest.class);

    private static PoolingDataSource pds;
    private static EntityManagerFactory emf;

    private TaskJPAAuditService auditService;

    @BeforeClass
    public static void configure() {
        pds = setupPoolingDataSource();
        emf = Persistence.createEntityManagerFactory( "org.jbpm.services.task" );

        hackTheDatabaseMetadataLoggerBecauseTheresALogbackXmlInTheClasspath();
    }

    @Before
    public void setup() {
        auditService = new TaskJPAAuditService(emf);
    }

    @AfterClass
    public static void reset() {
        if( emf != null ) {
            emf.close();
            emf = null;
        }
        if( pds != null ) {
            pds.close();
            pds = null;
        }
    }

    private static ModuleSpecificInputFiller inputFiller = new ModuleSpecificInputFiller() {

        private final JPACorrelationKeyFactory correlationKeyFactory = new JPACorrelationKeyFactory();

        private int auditTaskOrderByType = 0;
        private int taskEventOrderByType = 0;
        private int bamTaskSummaryOrderByType = 0;
        private int taskVariableOrderByType = 0;
        private int taskVariableType = 0;

        @Override
        public Object fillInput( Class type ) {
            if( type.equals(CorrelationKey.class) ) {
                return correlationKeyFactory.newCorrelationKey("business-key");
            } if( type.equals(AuditTaskQueryBuilder.OrderBy.class) ) {
               return ( auditTaskOrderByType++ % 2 == 0 ?
                       AuditTaskQueryBuilder.OrderBy.processId
                       : AuditTaskQueryBuilder.OrderBy.processInstanceId );
            } else if( type.equals(TaskEventQueryBuilder.OrderBy.class) ) {
               int typeCase = taskEventOrderByType++ % 3;
               switch(typeCase) {
               case 0:
                   return TaskEventQueryBuilder.OrderBy.logTime;
               case 1:
                   return TaskEventQueryBuilder.OrderBy.processInstanceId;
               case 2:
                   return TaskEventQueryBuilder.OrderBy.taskId;
               }
            } else if( type.equals(TaskVariableQueryBuilder.OrderBy.class) ) {
               int typeCase = taskVariableOrderByType++ % 4;
               switch(typeCase) {
               case 0:
                   return TaskVariableQueryBuilder.OrderBy.id;
               case 1:
                   return TaskVariableQueryBuilder.OrderBy.processInstanceId;
               case 2:
                   return TaskVariableQueryBuilder.OrderBy.modificationDate;
               case 3:
                   return TaskVariableQueryBuilder.OrderBy.taskId;
               }
            } else if( type.equals(BAMTaskSummaryQueryBuilder.OrderBy.class) ) {
                int typeCase = bamTaskSummaryOrderByType++ % 6;
                switch(typeCase) {
                case 0:
                    return BAMTaskSummaryQueryBuilder.OrderBy.createdDate;
                case 1:
                    return BAMTaskSummaryQueryBuilder.OrderBy.endDate;
                case 2:
                    return BAMTaskSummaryQueryBuilder.OrderBy.processInstanceId;
                case 3:
                    return BAMTaskSummaryQueryBuilder.OrderBy.startDate;
                case 4:
                    return BAMTaskSummaryQueryBuilder.OrderBy.taskId;
                case 5:
                    return BAMTaskSummaryQueryBuilder.OrderBy.taskName;
                }
            }  else if( type.isArray() ) {
                Class elemType = type.getComponentType();
                if( elemType.equals(CorrelationKey.class) ) {
                    CorrelationKey [] corrKeyArr = {
                            correlationKeyFactory.newCorrelationKey("key:one"),
                            correlationKeyFactory.newCorrelationKey("key:two")
                    };
                    return corrKeyArr;
                } else if( elemType.equals(TaskEventType.class) ) {
                    TaskEventType [] typeArr = {
                            TaskEventType.ACTIVATED,
                            TaskEventType.ADDED,
                            TaskEventType.CLAIMED
                    };
                    return typeArr;
                } else if( elemType.equals(Status.class) ) {
                    Status [] statusArr = { Status.Completed, Status.Suspended };
                    return statusArr;
                } else if( elemType.equals(TaskVariable.VariableType.class) ) {
                    VariableType [] typeArr = { 
                            taskVariableType++ % 2 == 0 ? TaskVariable.VariableType.INPUT : VariableType.OUTPUT 
                    };
                    return typeArr;
                }
            }
            return null;
        }
    };

    @Test
    public void auditTaskQueryBuilderCoverageTest() {
       AuditTaskQueryBuilder queryBuilder = auditService.auditTaskQuery();
       Class builderClass = AuditTaskQueryBuilder.class;

       queryBuilderCoverageTest(queryBuilder, builderClass, inputFiller);
    }

    @Test
    public void taskEventQueryBuilderCoverageTest() {
       TaskEventQueryBuilder queryBuilder = auditService.taskEventQuery();
       Class builderClass = TaskEventQueryBuilder.class;

       queryBuilderCoverageTest(queryBuilder, builderClass, inputFiller);
    }

    @Test
    public void bamTaskSummaryQueryBuilderCoverageTest() {
       BAMTaskSummaryQueryBuilder queryBuilder = auditService.bamTaskSummaryQuery();
       Class builderClass = BAMTaskSummaryQueryBuilder.class;

       queryBuilderCoverageTest(queryBuilder, builderClass, inputFiller);
    }

    @Test
    public void taskVariableQueryBuilderCoverageTest() {
       TaskVariableQueryBuilder queryBuilder = auditService.taskVariableQuery();
       Class builderClass = TaskVariableQueryBuilder.class;

       queryBuilderCoverageTest(queryBuilder, builderClass, inputFiller);
    }
}
