/*
 * Copyright (c) 2015 EMC Corporation
 * Copyright 2016 Intel Corporation
 *
 * 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 util;

import com.emc.storageos.db.client.model.AuthnProvider;
import com.emc.storageos.model.auth.AuthnCreateParam;
import com.emc.storageos.model.auth.AuthnProviderRestRep;
import com.emc.storageos.model.auth.AuthnUpdateParam;
import com.emc.vipr.client.exceptions.ViPRHttpException;
import com.google.common.collect.Lists;
import org.apache.commons.lang.StringUtils;

import java.net.URI;
import java.util.List;

import static com.emc.vipr.client.core.util.ResourceUtils.uri;
import static util.BourneUtil.getViprClient;

public class AuthnProviderUtils {
    public static AuthnProviderRestRep getAuthnProvider(String id) {
        try {
            return getViprClient().authnProviders().get(uri(id));
        } catch (ViPRHttpException e) {
            if (e.getHttpCode() == 404) {
                return null;
            }
            throw e;
        }
    }

    public static List<AuthnProviderRestRep> getAuthnProviders() {
        return getViprClient().authnProviders().getAll();
    }

    public static List<AuthnProviderRestRep> getAuthnProvider(List<URI> ids) {
        return getViprClient().authnProviders().getByIds(ids);
    }

    public static List<AuthnProviderRestRep> getAuthProvidersByDomainName(String domain) {
        List<AuthnProviderRestRep> results = Lists.newArrayList();
        if (StringUtils.isNotBlank(domain)) {
            List<AuthnProviderRestRep> authnProviderRestReps = AuthnProviderUtils.getAuthnProviders();
            for (AuthnProviderRestRep authnProviderRestRep : authnProviderRestReps) {
                for (String authProviderDomain : authnProviderRestRep.getDomains()) {
                    if (StringUtils.equalsIgnoreCase(authProviderDomain, domain)) {
                        results.add(authnProviderRestRep);
                    }
                }
            }
        }
        return results;
    }

    public static AuthnProviderRestRep create(AuthnCreateParam authnProvider) {
        return getViprClient().authnProviders().create(authnProvider);
    }

    public static AuthnProviderRestRep update(String id, AuthnUpdateParam authnProvider) {
        return getViprClient().authnProviders().update(uri(id), authnProvider);
    }

    public static AuthnProviderRestRep forceUpdate(String id, AuthnUpdateParam authnProvider) {
        return getViprClient().authnProviders().forceUpdate(uri(id), authnProvider);
    }

    public static void delete(URI id) {
        getViprClient().authnProviders().delete(id);
    }

    public static AuthnProviderRestRep getKeystoneAuthProvider() {
        List<AuthnProviderRestRep> authnProviders = getViprClient().authnProviders().getAll();
        for (AuthnProviderRestRep authnProvider : authnProviders)
            if (authnProvider.getMode().equals(AuthnProvider.ProvidersType.keystone.name())) {
                return authnProvider;
            }
        return null;
    }
}