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/**

 Copyright (c) 2015, Alessandro Pieri
 All rights reserved.

 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:

 1. Redistributions of source code must retain the above copyright notice, this
 list of conditions and the following disclaimer.
 2. 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.

 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.

 The views and conclusions contained in the software and documentation are those
 of the authors and should not be interpreted as representing official policies,
 either expressed or implied, of the FreeBSD Project.

 */
package io.getstream.client.model.feeds;

import io.getstream.client.exception.StreamClientException;
import io.getstream.client.model.activities.BaseActivity;
import io.getstream.client.model.beans.FeedFollow;
import io.getstream.client.model.beans.FollowMany;
import io.getstream.client.service.FlatActivityServiceImpl;
import io.getstream.client.service.UserActivityServiceImpl;
import io.getstream.client.model.filters.FeedFilter;
import io.getstream.client.repo.StreamRepository;
import io.getstream.client.service.AggregatedActivityServiceImpl;
import io.getstream.client.service.NotificationActivityServiceImpl;

import java.io.IOException;
import java.util.List;

/**
 * Provide basic operation to perform against a feed.
 */
public class BaseFeed implements Feed {

    public static final int DEFAULT_ACTIVITY_COPY_LIMIT = 300;
    protected final StreamRepository streamRepository;
    protected final String feedSlug;
    protected final String userId;
    private final String id;

    /**
     * Create a new feed using the given slug and user id.
     *
     * @param streamRepository Provide data repository to perform actual operation on a given feed.
     *                         It must implement {@link StreamRepository}.
     * @param feedSlug Feed slug
     * @param userId User ID
     */
    public BaseFeed(StreamRepository streamRepository, String feedSlug, String userId) {
        this.streamRepository = streamRepository;
        this.feedSlug = feedSlug;
        this.userId = userId;
        this.id = feedSlug.concat(":").concat(userId);
    }

    @Override
    public void follow(String feedSlug, String userId) throws IOException, StreamClientException {
        String feedId = String.format("%s:%s", feedSlug, userId);
        streamRepository.follow(this, feedId);
    }

    @Override
    public void followMany(FollowMany follows, int activityCopyLimit) throws IOException, StreamClientException {
        streamRepository.followMany(this, follows, activityCopyLimit);
    }

    @Override
    public void followMany(FollowMany follows) throws IOException, StreamClientException {
        streamRepository.followMany(this, follows, DEFAULT_ACTIVITY_COPY_LIMIT);
    }

    @Override
    public void unfollow(String feedSlug, String userId) throws IOException, StreamClientException {
        String feedId = String.format("%s:%s", feedSlug, userId);
        streamRepository.unfollow(this, feedId);
    }

    @Override
    public List getFollowers() throws IOException, StreamClientException {
        return streamRepository.getFollowers(this, new FeedFilter.Builder().build());
    }

    @Override
    public List getFollowers(FeedFilter filter) throws IOException, StreamClientException {
        return streamRepository.getFollowers(this, filter);
    }

    @Override
    public List getFollowing() throws IOException, StreamClientException {
        return streamRepository.getFollowing(this, new FeedFilter.Builder().build());
    }

    @Override
    public List getFollowing(FeedFilter filter) throws IOException, StreamClientException {
        return streamRepository.getFollowing(this, filter);
    }

    @Override
    public void deleteActivity(String activityId) throws IOException, StreamClientException {
        streamRepository.deleteActivityById(this, activityId);
    }

    @Override
    public void deleteActivityByForeignId(String foreignId) throws IOException, StreamClientException {
        streamRepository.deleteActivityByForeignId(this, foreignId);
    }

    @Override
    public  AggregatedActivityServiceImpl newAggregatedActivityService(Class clazz) {
        return new AggregatedActivityServiceImpl<>(this, clazz, streamRepository);
    }

    @Override
    public  FlatActivityServiceImpl newFlatActivityService(Class clazz) {
        return new FlatActivityServiceImpl<>(this, clazz, streamRepository);
    }

    @Override
    public  UserActivityServiceImpl newUserActivityService(Class clazz) {
        return new UserActivityServiceImpl<>(this, clazz, streamRepository);
    }

    @Override
    public  NotificationActivityServiceImpl newNotificationActivityService(Class clazz) {
        return new NotificationActivityServiceImpl<>(this, clazz, streamRepository);
    }

    public String getFeedSlug() {
        return feedSlug;
    }

    public String getFeedId() {
        return getFeedSlug().concat(getUserId());
    }

    public String getUserId() {
        return userId;
    }

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

    @Override
    public String getToken() {
        return streamRepository.getToken(this);
    }
}