/*
 * Copyright (c) 2017, 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.
 */
package org.hisp.dhis.android.core.dataset;

import org.hisp.dhis.android.core.common.ObjectWithUid;
import org.hisp.dhis.android.core.indicator.Indicator;
import org.hisp.dhis.android.core.organisationunit.OrganisationUnit;
import org.hisp.dhis.android.core.period.PeriodModel;
import org.hisp.dhis.android.core.user.User;
import org.hisp.dhis.android.core.user.UserRole;

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

final class DataSetParentUidsHelper {

    private DataSetParentUidsHelper() {}

    static Set<String> getAssignedDataSetUids(User user) {
        if (user == null || user.userCredentials() == null || user.userCredentials().userRoles() == null) {
            return null;
        }

        Set<String> dataSetUids = new HashSet<>();

        getDataSetUidsFromUserRoles(user, dataSetUids);
        getDataSetUidsFromOrganisationUnits(user, dataSetUids);

        return dataSetUids;
    }

    private static void getDataSetUidsFromOrganisationUnits(User user, Set<String> dataSetUids) {
        List<OrganisationUnit> organisationUnits = user.organisationUnits();

        if (organisationUnits != null) {
            for (OrganisationUnit organisationUnit : organisationUnits) {
                addDataSets(organisationUnit.dataSets(), dataSetUids);
            }
        }
    }

    private static void getDataSetUidsFromUserRoles(User user, Set<String> dataSetUids) {
        List<UserRole> userRoles = user.userCredentials().userRoles();

        if (userRoles != null) {
            for (UserRole userRole : userRoles) {
                addDataSets(userRole.dataSets(), dataSetUids);
            }
        }
    }

    private static void addDataSets(List<DataSet> dataSets, Set<String> dataSetUids) {
        if (dataSets != null) {
            for (DataSet dataSet : dataSets) {
                dataSetUids.add(dataSet.uid());
            }
        }
    }

    static Set<String> getDataElementUids(List<DataSet> dataSets) {
        Set<String> uids = new HashSet<>();
        for (DataSet dataSet : dataSets) {
            List<DataElementUids> dataSetElements = dataSet.dataSetElements();
            assert dataSetElements != null;
            for (DataElementUids dataSetElement : dataSetElements) {
                uids.add(dataSetElement.dataElement().uid());
            }
        }
        return uids;
    }

    static Set<String> getIndicatorUids(List<DataSet> dataSets) {
        Set<String> uids = new HashSet<>();
        for (DataSet dataSet : dataSets) {
            for (ObjectWithUid indicator : dataSet.indicators()) {
                uids.add(indicator.uid());
            }
        }
        return uids;
    }

    static Set<String> getIndicatorTypeUids(List<Indicator> indicators) {
        Set<String> uids = new HashSet<>();
        for (Indicator indicator : indicators) {
            ObjectWithUid type = indicator.indicatorType();
            if (type != null) {
                uids.add(type.uid());
            }
        }
        return uids;
    }

    static Set<String> getOrganisationUnitUids(User user) {
        List<OrganisationUnit> organisationUnits = user.organisationUnits();
        Set<String> uids = new HashSet<>();

        if (organisationUnits != null) {
            for (OrganisationUnit organisationUnit : organisationUnits) {
                String orgUnitUid = organisationUnit.uid();
                if (orgUnitUid != null) {
                    uids.add(orgUnitUid);
                }
            }
        }
        return uids;
    }


    static Set<String> getPeriodIds(List<PeriodModel> periods) {
        Set<String> ids = new HashSet<>();

        if (periods != null) {
            for (PeriodModel period : periods) {
                String periodId = period.periodId();
                if (periodId != null) {
                    ids.add(periodId);
                }
            }
        }
        return ids;
    }
}

@@ -1774,62 +1774,8 @@
 it;%0A
-import org.hisp.dhis.android.core.period.PeriodModel;%0A
 impo
@@ -4533,909 +4533,7 @@
    %7D
-%0A%0A    static Set%3CString%3E getOrganisationUnitUids(User user) %7B%0A        List%3COrganisationUnit%3E organisationUnits = user.organisationUnits();%0A        Set%3CString%3E uids = new HashSet%3C%3E();%0A%0A        if (organisationUnits != null) %7B%0A            for (OrganisationUnit organisationUnit : organisationUnits) %7B%0A                String orgUnitUid = organisationUnit.uid();%0A                if (orgUnitUid != null) %7B%0A                    uids.add(orgUnitUid);%0A                %7D%0A            %7D%0A        %7D%0A        return uids;%0A    %7D%0A%0A%0A    static Set%3CString%3E getPeriodIds(List%3CPeriodModel%3E periods) %7B%0A        Set%3CString%3E ids = new HashSet%3C%3E();%0A%0A        if (periods != null) %7B%0A            for (PeriodModel period : periods) %7B%0A                String periodId = period.periodId();%0A                if (periodId != null) %7B%0A                    ids.add(periodId);%0A                %7D%0A            %7D%0A        %7D%0A        return ids;%0A    %7D
 %0A%7D%0A

remove getOrganisationUnitUids method and getPeriodIds method