/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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 org.keycloak.storage.ldap.mappers;

import org.keycloak.component.ComponentModel;
import org.keycloak.component.ComponentValidationException;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.RealmModel;
import org.keycloak.models.RoleModel;
import org.keycloak.models.utils.KeycloakModelUtils;
import org.keycloak.provider.ProviderConfigProperty;
import org.keycloak.storage.ldap.LDAPStorageProvider;

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

/**
 * @author <a href="mailto:mposolda@redhat.com">Marek Posolda</a>
 */
public class HardcodedLDAPRoleStorageMapperFactory extends AbstractLDAPStorageMapperFactory {

    public static final String PROVIDER_ID = "hardcoded-ldap-role-mapper";
    protected static final List<ProviderConfigProperty> configProperties = new ArrayList<ProviderConfigProperty>();

    static {
        ProviderConfigProperty roleAttr = createConfigProperty(HardcodedLDAPRoleStorageMapper.ROLE, "Role",
                "Role to grant to user.  Click 'Select Role' button to browse roles, or just type it in the textbox.  To reference an application role the syntax is appname.approle, i.e. myapp.myrole",
                ProviderConfigProperty.ROLE_TYPE, null);
        configProperties.add(roleAttr);
    }

    @Override
    public String getHelpText() {
        return "When user is imported from LDAP, he will be automatically added into this configured role.";
    }

    @Override
    public List<ProviderConfigProperty> getConfigProperties() {
        return configProperties;
    }

    @Override
    public String getId() {
        return PROVIDER_ID;
    }

    @Override
    public void validateConfiguration(KeycloakSession session, RealmModel realm, ComponentModel config) throws ComponentValidationException {
        String roleName = config.getConfig().getFirst(HardcodedLDAPRoleStorageMapper.ROLE);
        if (roleName == null) {
            throw new ComponentValidationException("Role can't be null");
        }
        RoleModel role = KeycloakModelUtils.getRoleFromString(realm, roleName);
        if (role == null) {
            throw new ComponentValidationException("There is no role corresponding to configured value");
        }
    }

    @Override
    protected AbstractLDAPStorageMapper createMapper(ComponentModel mapperModel, LDAPStorageProvider federationProvider) {
        return new HardcodedLDAPRoleStorageMapper(mapperModel, federationProvider);
    }
}