package org.hisp.dhis.program;

/*
 * Copyright (c) 2004-2020, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the HISP project nor the names of its contributors may
 * be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import com.google.common.collect.Sets;
import org.hisp.dhis.DhisSpringTest;
import org.hisp.dhis.common.OrganisationUnitSelectionMode;
import org.hisp.dhis.organisationunit.OrganisationUnit;
import org.hisp.dhis.organisationunit.OrganisationUnitService;
import org.hisp.dhis.trackedentity.TrackedEntityInstance;
import org.hisp.dhis.trackedentity.TrackedEntityInstanceService;
import org.joda.time.DateTime;
import org.junit.Ignore;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import java.util.Collection;
import java.util.Date;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

/**
 * @author Chau Thu Tran
 */
public class ProgramInstanceServiceTest
    extends DhisSpringTest
{
    @Autowired
    private ProgramInstanceService programInstanceService;

    @Autowired
    private TrackedEntityInstanceService entityInstanceService;

    @Autowired
    private OrganisationUnitService organisationUnitService;

    @Autowired
    private ProgramService programService;

    @Autowired
    private ProgramStageService programStageService;

    @Autowired
    private ProgramStageInstanceService programStageInstanceService;

    private Date incidenDate;

    private Date enrollmentDate;

    private Program programA;

    private Program programB;

    private Program programC;

    private OrganisationUnit organisationUnitA;

    private OrganisationUnit organisationUnitB;

    private ProgramStageInstance programStageInstanceA;

    private ProgramInstance programInstanceA;

    private ProgramInstance programInstanceB;

    private ProgramInstance programInstanceC;

    private ProgramInstance programInstanceD;

    private TrackedEntityInstance entityInstanceA;

    private Collection<Long> orgunitIds;

    @Override
    public void setUpTest()
    {
        organisationUnitA = createOrganisationUnit( 'A' );
        long idA = organisationUnitService.addOrganisationUnit( organisationUnitA );

        organisationUnitB = createOrganisationUnit( 'B' );
        long idB = organisationUnitService.addOrganisationUnit( organisationUnitB );

        orgunitIds = new HashSet<>();
        orgunitIds.add( idA );
        orgunitIds.add( idB );

        programA = createProgram( 'A', new HashSet<>(), organisationUnitA );

        programService.addProgram( programA );

        ProgramStage stageA = createProgramStage( 'A', programA );
        stageA.setSortOrder( 1 );
        programStageService.saveProgramStage( stageA );

        ProgramStage stageB = createProgramStage( 'B', programA );
        stageB.setSortOrder( 2 );
        programStageService.saveProgramStage( stageB );

        Set<ProgramStage> programStages = new HashSet<>();
        programStages.add( stageA );
        programStages.add( stageB );
        programA.setProgramStages( programStages );
        programService.updateProgram( programA );

        programB = createProgram( 'B', new HashSet<>(), organisationUnitA );
        programService.addProgram( programB );

        programC = createProgram( 'C', new HashSet<>(), organisationUnitA );
        programService.addProgram( programC );

        entityInstanceA = createTrackedEntityInstance( organisationUnitA );
        entityInstanceService.addTrackedEntityInstance( entityInstanceA );

        TrackedEntityInstance entityInstanceB = createTrackedEntityInstance( organisationUnitB );
        entityInstanceService.addTrackedEntityInstance( entityInstanceB );

        DateTime testDate1 = DateTime.now();
        testDate1.withTimeAtStartOfDay();
        testDate1 = testDate1.minusDays( 70 );
        incidenDate = testDate1.toDate();

        DateTime testDate2 = DateTime.now();
        testDate2.withTimeAtStartOfDay();
        enrollmentDate = testDate2.toDate();

        programInstanceA = new ProgramInstance( enrollmentDate, incidenDate, entityInstanceA, programA );
        programInstanceA.setUid( "UID-A" );
        programInstanceA.setOrganisationUnit( organisationUnitA );

        programStageInstanceA = new ProgramStageInstance( programInstanceA, stageA );
        programStageInstanceA.setUid( "UID-PSI-A" );
        programStageInstanceA.setOrganisationUnit( organisationUnitA );

        programInstanceB = new ProgramInstance( enrollmentDate, incidenDate, entityInstanceA, programB );
        programInstanceB.setUid( "UID-B" );
        programInstanceB.setStatus( ProgramStatus.CANCELLED );
        programInstanceB.setOrganisationUnit( organisationUnitB );

        programInstanceC = new ProgramInstance( enrollmentDate, incidenDate, entityInstanceA, programC );
        programInstanceC.setUid( "UID-C" );
        programInstanceC.setStatus( ProgramStatus.COMPLETED );
        programInstanceC.setOrganisationUnit( organisationUnitA );

        programInstanceD = new ProgramInstance( enrollmentDate, incidenDate, entityInstanceB, programA );
        programInstanceD.setUid( "UID-D" );
        programInstanceD.setOrganisationUnit( organisationUnitB );
    }

    @Test
    public void testAddProgramInstance()
    {
        long idA = programInstanceService.addProgramInstance( programInstanceA );
        long idB = programInstanceService.addProgramInstance( programInstanceB );

        assertNotNull( programInstanceService.getProgramInstance( idA ) );
        assertNotNull( programInstanceService.getProgramInstance( idB ) );
    }

    @Test
    public void testDeleteProgramInstance()
    {
        long idA = programInstanceService.addProgramInstance( programInstanceA );
        long idB = programInstanceService.addProgramInstance( programInstanceB );

        assertNotNull( programInstanceService.getProgramInstance( idA ) );
        assertNotNull( programInstanceService.getProgramInstance( idB ) );

        programInstanceService.deleteProgramInstance( programInstanceA );

        assertNull( programInstanceService.getProgramInstance( idA ) );
        assertNotNull( programInstanceService.getProgramInstance( idB ) );

        programInstanceService.deleteProgramInstance( programInstanceB );

        assertNull( programInstanceService.getProgramInstance( idA ) );
        assertNull( programInstanceService.getProgramInstance( idB ) );
    }

    @Test
    public void testSoftDeleteProgramInstanceAndLinkedProgramStageInstance()
    {
        long idA = programInstanceService.addProgramInstance( programInstanceA );
        long psiIdA = programStageInstanceService.addProgramStageInstance( programStageInstanceA );

        programInstanceA.setProgramStageInstances( Sets.newHashSet( programStageInstanceA ) );
        programInstanceService.updateProgramInstance( programInstanceA );

        assertNotNull( programInstanceService.getProgramInstance( idA ) );
        assertNotNull( programStageInstanceService.getProgramStageInstance( psiIdA ) );

        programInstanceService.deleteProgramInstance( programInstanceA );

        assertNull( programInstanceService.getProgramInstance( idA ) );
        assertNull( programStageInstanceService.getProgramStageInstance( psiIdA ) );

    }

    @Test
    public void testUpdateProgramInstance()
    {
        long idA = programInstanceService.addProgramInstance( programInstanceA );

        assertNotNull( programInstanceService.getProgramInstance( idA ) );

        programInstanceA.setIncidentDate( enrollmentDate );
        programInstanceService.updateProgramInstance( programInstanceA );

        assertEquals( enrollmentDate, programInstanceService.getProgramInstance( idA ).getIncidentDate() );
    }

    @Test
    public void testGetProgramInstanceById()
    {
        long idA = programInstanceService.addProgramInstance( programInstanceA );
        long idB = programInstanceService.addProgramInstance( programInstanceB );

        assertEquals( programInstanceA, programInstanceService.getProgramInstance( idA ) );
        assertEquals( programInstanceB, programInstanceService.getProgramInstance( idB ) );
    }

    @Test
    public void testGetProgramInstanceByUid()
    {
        programInstanceService.addProgramInstance( programInstanceA );
        programInstanceService.addProgramInstance( programInstanceB );

        assertEquals( "UID-A", programInstanceService.getProgramInstance( "UID-A" ).getUid() );
        assertEquals( "UID-B", programInstanceService.getProgramInstance( "UID-B" ).getUid() );
    }

    @Test
    public void testGetProgramInstancesByProgram()
    {
        programInstanceService.addProgramInstance( programInstanceA );
        programInstanceService.addProgramInstance( programInstanceB );
        programInstanceService.addProgramInstance( programInstanceD );

        List<ProgramInstance> programInstances = programInstanceService.getProgramInstances( programA );
        assertEquals( 2, programInstances.size() );
        assertTrue( programInstances.contains( programInstanceA ) );
        assertTrue( programInstances.contains( programInstanceD ) );

        programInstances = programInstanceService.getProgramInstances( programB );
        assertEquals( 1, programInstances.size() );
        assertTrue( programInstances.contains( programInstanceB ) );
    }

    @Test
    public void testGetProgramInstancesByEntityInstanceProgramStatus()
    {
        programInstanceService.addProgramInstance( programInstanceA );

        ProgramInstance programInstance1 = programInstanceService.enrollTrackedEntityInstance( entityInstanceA, programA, enrollmentDate,
            incidenDate, organisationUnitA );
        programInstance1.setStatus( ProgramStatus.COMPLETED );
        programInstanceService.updateProgramInstance( programInstance1 );

        ProgramInstance programInstance2 = programInstanceService.enrollTrackedEntityInstance( entityInstanceA, programA, enrollmentDate,
            incidenDate, organisationUnitA );
        programInstance2.setStatus( ProgramStatus.COMPLETED );
        programInstanceService.updateProgramInstance( programInstance2 );

        List<ProgramInstance> programInstances = programInstanceService.getProgramInstances( entityInstanceA, programA, ProgramStatus.COMPLETED );
        assertEquals( 2, programInstances.size() );
        assertTrue( programInstances.contains( programInstance1 ) );
        assertTrue( programInstances.contains( programInstance2 ) );

        programInstances = programInstanceService.getProgramInstances( entityInstanceA, programA,
            ProgramStatus.ACTIVE );
        assertEquals( 1, programInstances.size() );
        assertTrue( programInstances.contains( programInstanceA ) );
    }

    @Test
    public void testGetProgramInstancesByOuProgram()
    {
        programInstanceService.addProgramInstance( programInstanceA );
        programInstanceService.addProgramInstance( programInstanceC );
        programInstanceService.addProgramInstance( programInstanceD );

        List<ProgramInstance> programInstances = programInstanceService.getProgramInstances( new ProgramInstanceQueryParams()
                .setProgram( programA )
                .setOrganisationUnits( Sets.newHashSet( organisationUnitA ) )
                .setOrganisationUnitMode( OrganisationUnitSelectionMode.SELECTED ) );
        assertEquals( 1, programInstances.size() );
        assertTrue( programInstances.contains( programInstanceA ) );
    }

    @Test
    public void testEnrollTrackedEntityInstance()
    {
        ProgramInstance programInstance = programInstanceService.enrollTrackedEntityInstance( entityInstanceA, programB, enrollmentDate,
            incidenDate, organisationUnitA );

        assertNotNull( programInstanceService.getProgramInstance( programInstance.getId() ) );
    }

    @Test
    @Ignore
    public void testCanAutoCompleteProgramInstanceStatus()
    {
        programInstanceService.addProgramInstance( programInstanceA );
        programInstanceService.addProgramInstance( programInstanceD );

        assertTrue( programInstanceService.canAutoCompleteProgramInstanceStatus( programInstanceA ) );
        assertTrue( programInstanceService.canAutoCompleteProgramInstanceStatus( programInstanceD ) );
    }

    @Test
    public void testCompleteProgramInstanceStatus()
    {
        long idA = programInstanceService.addProgramInstance( programInstanceA );
        long idD = programInstanceService.addProgramInstance( programInstanceD );

        programInstanceService.completeProgramInstanceStatus( programInstanceA );
        programInstanceService.completeProgramInstanceStatus( programInstanceD );

        assertEquals( ProgramStatus.COMPLETED, programInstanceService.getProgramInstance( idA ).getStatus() );
        assertEquals( ProgramStatus.COMPLETED, programInstanceService.getProgramInstance( idD ).getStatus() );
    }

    @Test
    public void testIncompleteProgramInstanceStatus()
    {
        programInstanceA.setStatus( ProgramStatus.COMPLETED );
        programInstanceD.setStatus( ProgramStatus.COMPLETED );

        long idA = programInstanceService.addProgramInstance( programInstanceA );
        long idD = programInstanceService.addProgramInstance( programInstanceD );

        programInstanceService.incompleteProgramInstanceStatus( programInstanceA );
        programInstanceService.incompleteProgramInstanceStatus( programInstanceD );

        assertEquals( ProgramStatus.ACTIVE, programInstanceService.getProgramInstance( idA ).getStatus() );
        assertEquals( ProgramStatus.ACTIVE, programInstanceService.getProgramInstance( idD ).getStatus() );
    }

    @Test
    public void testCancelProgramInstanceStatus()
    {
        long idA = programInstanceService.addProgramInstance( programInstanceA );
        long idD = programInstanceService.addProgramInstance( programInstanceD );

        programInstanceService.cancelProgramInstanceStatus( programInstanceA );
        programInstanceService.cancelProgramInstanceStatus( programInstanceD );

        assertEquals( ProgramStatus.CANCELLED, programInstanceService.getProgramInstance( idA ).getStatus() );
        assertEquals( ProgramStatus.CANCELLED, programInstanceService.getProgramInstance( idD ).getStatus() );
    }
}