/**
 * Copyright (C) 2017-2019 Christian Pierre MOMON <cmomon@april.org>
 * Copyright (C) 2011-2013 Nicolas Vinot <aeris@imirhil.fr>
 *
 * This file is part of (April) Hebdobot.
 *
 * Hebdobot is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Hebdobot is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Hebdobot.  If not, see <http://www.gnu.org/licenses/>
 */
package org.april.hebdobot.bot.review;

import java.time.Duration;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

import org.april.hebdobot.bot.UserAliases;

import fr.devinsy.strings.StringSet;

/**
 * The Class Review.
 */
public class Review
{
    private static final int LENGTH = 80;

    private final StringSet participants;
    private final IndividualTopics individualTopics;
    private final CollectiveTopics collectiveTopics;
    private Topic currentTopic;
    private final MessageList messages;
    private final String owner;
    private final UserAliases aliases;
    private final LocalDateTime startTime;
    private LocalDateTime endTime;

    /**
     * Instantiates a new review.
     *
     * @param owner
     *            the owner
     * @param aliases
     *            the aliases
     */
    public Review(final String owner, final UserAliases aliases)
    {
        this.participants = new StringSet();
        this.individualTopics = new IndividualTopics();
        this.collectiveTopics = new CollectiveTopics();
        this.messages = new MessageList();

        this.owner = owner;
        this.aliases = aliases;

        this.startTime = LocalDateTime.now();
        this.endTime = null;
    }

    /**
     * Adds the.
     *
     * @param message
     *            the message
     */
    public void add(final Message message)
    {
        if (this.currentTopic != null)
        {
            this.participants.add(message.getAuthor());
            this.currentTopic.add(message);
        }
    }

    /**
     * Adds the raw.
     *
     * @param message
     *            the message
     */
    public void addRaw(final Message message)
    {
        this.messages.add(message);
    }

    /**
     * Begin.
     *
     * @param topic
     *            the topic
     */
    public void begin(final CollectiveTopic topic)
    {
        this.collectiveTopics.add(topic);
        this.currentTopic = topic;
    }

    /**
     * Begin.
     *
     * @param topic
     *            the topic
     */
    public void begin(final IndividualTopic topic)
    {
        this.individualTopics.add(topic);
        this.currentTopic = topic;
    }

    /**
     * End review.
     */
    public void endReview()
    {
        this.endTime = LocalDateTime.now();
    }

    public UserAliases getAliases()
    {
        return this.aliases;
    }

    /**
     * Gets the collective topics.
     *
     * @return the collective topics
     */
    public CollectiveTopics getCollectiveTopics()
    {
        return this.collectiveTopics;
    }

    /**
     * Gets the current topic.
     *
     * @return the current topic
     */
    public Topic getCurrentTopic()
    {
        return this.currentTopic;
    }

    /**
     * Gets the duration.
     *
     * @return the duration
     */
    public long getDuration()
    {
        long result;

        if (this.endTime == null)
        {
            result = Duration.between(this.startTime, LocalDateTime.now()).getSeconds();
        }
        else
        {
            result = Duration.between(this.startTime, this.endTime).getSeconds();
        }

        //
        return result;
    }

    /**
     * Gets the duration.
     *
     * @return the duration
     */
    public long getDurationInMinutes()
    {
        long result;

        result = (long) Math.ceil(getDuration() / 60.0);

        //
        return result;
    }

    /**
     * Gets the end time.
     *
     * @return the end time
     */
    public LocalDateTime getEndTime()
    {
        return this.endTime;
    }

    /**
     * Gets the formatted end time.
     *
     * @return the formatted end time
     */
    public String getFormattedEndTime()
    {
        String result;

        if (this.endTime == null)
        {
            result = "??h??";
        }
        else
        {
            result = this.endTime.format(DateTimeFormatter.ofPattern("kk'h'mm"));
        }

        //
        return result;
    }

    /**
     * Gets the formatted start time.
     *
     * @return the formatted start time
     */
    public String getFormattedStartTime()
    {
        String result;

        result = this.startTime.format(DateTimeFormatter.ofPattern("kk'h'mm"));

        //
        return result;
    }

    /**
     * Gets the individual topics.
     *
     * @return the individual topics
     */
    public IndividualTopics getIndividualTopics()
    {
        return this.individualTopics;
    }

    public MessageList getMessages()
    {
        return this.messages;
    }

    /**
     * Gets the owner.
     *
     * @return the owner
     */
    public String getOwner()
    {
        return this.owner;
    }

    /**
     * Gets the participants.
     *
     * @return the participants
     */
    public StringSet getParticipants()
    {
        StringSet result;

        result = new StringSet();

        for (final Topic topic : this.individualTopics)
        {
            result.addAll(topic.getParticipants());
        }

        for (final Topic topic : this.collectiveTopics)
        {
            result.addAll(topic.getParticipants());
        }

        //
        return result;
    }

    /**
     * Gets the start time.
     *
     * @return the start time
     */
    public LocalDateTime getStartTime()
    {
        return this.startTime;
    }

    /**
     * Checks if is empty.
     *
     * @return true, if is empty
     */
    public boolean isEmpty()
    {
        boolean result;

        if ((this.individualTopics.isEmpty()) && (this.collectiveTopics.isEmpty()))
        {
            result = true;
        }
        else
        {
            result = false;
        }

        //
        return result;
    }

    /**
     * Checks if is ended.
     *
     * @return true, if is ended
     */
    public boolean isEnded()
    {
        boolean result;

        if (this.endTime == null)
        {
            result = false;
        }
        else
        {
            result = true;
        }

        //
        return result;
    }

    /**
     * Checks if is owner.
     *
     * @param name
     *            the name
     * @return true, if is owner
     */
    public boolean isOwner(final String name)
    {
        boolean result;

        result = this.owner.equalsIgnoreCase(name);

        //
        return result;
    }
}