/*
 * 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.authentication.requiredactions;

import org.keycloak.Config;
import org.keycloak.OAuth2Constants;
import org.keycloak.authentication.DisplayTypeRequiredActionFactory;
import org.keycloak.authentication.InitiatedActionSupport;
import org.keycloak.authentication.RequiredActionContext;
import org.keycloak.authentication.RequiredActionFactory;
import org.keycloak.authentication.RequiredActionProvider;
import org.keycloak.events.Details;
import org.keycloak.events.EventBuilder;
import org.keycloak.events.EventType;
import org.keycloak.models.KeycloakSession;
import org.keycloak.models.KeycloakSessionFactory;
import org.keycloak.models.UserModel;
import org.keycloak.models.utils.FormMessage;
import org.keycloak.services.resources.AttributeFormDataProcessor;
import org.keycloak.services.validation.Validation;
import org.keycloak.userprofile.LegacyUserProfileProviderFactory;
import org.keycloak.userprofile.UserProfileProvider;
import org.keycloak.userprofile.profile.representations.AttributeUserProfile;
import org.keycloak.userprofile.utils.UserUpdateHelper;
import org.keycloak.userprofile.profile.DefaultUserProfileContext;
import org.keycloak.userprofile.validation.UserProfileValidationResult;

import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import java.util.List;

/**
 * @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
 * @version $Revision: 1 $
 */
public class UpdateProfile implements RequiredActionProvider, RequiredActionFactory, DisplayTypeRequiredActionFactory {
    @Override
    public InitiatedActionSupport initiatedActionSupport() {
        return InitiatedActionSupport.SUPPORTED;
    }
    
    @Override
    public void evaluateTriggers(RequiredActionContext context) {
    }

    @Override
    public void requiredActionChallenge(RequiredActionContext context) {
        Response challenge = context.form()
                .createResponse(UserModel.RequiredAction.UPDATE_PROFILE);
        context.challenge(challenge);
    }

    @Override
    public void processAction(RequiredActionContext context) {
        EventBuilder event = context.getEvent();
        event.event(EventType.UPDATE_PROFILE);
        MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
        UserModel user = context.getUser();

        AttributeUserProfile updatedProfile = AttributeFormDataProcessor.toUserProfile(formData);

        String oldEmail = user.getEmail();
        String newEmail = updatedProfile.getAttributes().getFirstAttribute(UserModel.EMAIL);

        UserProfileProvider userProfile = context.getSession().getProvider(UserProfileProvider.class, LegacyUserProfileProviderFactory.PROVIDER_ID);
        UserProfileValidationResult result = userProfile.validate(DefaultUserProfileContext.forUpdateProfile(user),updatedProfile);
        List<FormMessage> errors = Validation.getFormErrorsFromValidation(result);

        if (errors != null && !errors.isEmpty()) {
            Response challenge = context.form()
                    .setErrors(errors)
                    .setFormData(formData)
                    .createResponse(UserModel.RequiredAction.UPDATE_PROFILE);
            context.challenge(challenge);
            return;
        }

        UserUpdateHelper.updateUserProfile(context.getRealm(), user, updatedProfile);
        if (result.hasAttributeChanged(UserModel.EMAIL)) {
            user.setEmailVerified(false);
            event.clone().event(EventType.UPDATE_EMAIL).detail(Details.PREVIOUS_EMAIL, oldEmail).detail(Details.UPDATED_EMAIL, newEmail).success();
        }
        context.success();

    }


    @Override
    public void close() {

    }

    @Override
    public RequiredActionProvider create(KeycloakSession session) {
        return this;
    }


    @Override
    public RequiredActionProvider createDisplay(KeycloakSession session, String displayType) {
        if (displayType == null) return this;
        if (!OAuth2Constants.DISPLAY_CONSOLE.equalsIgnoreCase(displayType)) return null;
        return ConsoleUpdateProfile.SINGLETON;
    }



    @Override
    public void init(Config.Scope config) {

    }

    @Override
    public void postInit(KeycloakSessionFactory factory) {

    }

    @Override
    public String getDisplayText() {
        return "Update Profile";
    }


    @Override
    public String getId() {
        return UserModel.RequiredAction.UPDATE_PROFILE.name();
    }
}
