/*
 * Copyright (c) 2004-2018, 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.user;

import android.support.annotation.NonNull;

import org.hisp.dhis.android.core.arch.api.executors.APICallExecutor;
import org.hisp.dhis.android.core.calls.fetchers.CallFetcher;
import org.hisp.dhis.android.core.maintenance.D2Error;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public abstract class AuthorityCallFetcher implements CallFetcher<Authority> {

    private final APICallExecutor apiCallExecutor;
    private static final List<String> QUERIED_AUTHORITIES = Arrays.asList(
            "F_ENROLLMENT_CASCADE_DELETE",
            "F_TEI_CASCADE_DELETE");

    AuthorityCallFetcher(@NonNull APICallExecutor apiCallExecutor) {
        this.apiCallExecutor = apiCallExecutor;
    }

    protected abstract retrofit2.Call<List<String>> getCall();

    @Override
    public List<Authority> fetch() throws D2Error {
        List<String> authoritiesAsStringList = apiCallExecutor.executeObjectCall(getCall());

        return getAuthoritiesFromStringList(authoritiesAsStringList);
    }

    private List<Authority> getAuthoritiesFromStringList(List<String> authoritiesAsStringList) {
        List<Authority> authorities = new ArrayList<>();

        for (String authority : QUERIED_AUTHORITIES) {
            if (authoritiesAsStringList.contains(authority)) {
                authorities.add(Authority.builder().name(authority).build());
            }
        }

        return authorities;
    }
}
Add AuthorityCallFetcher