hebdobot/src/main/java/fr/imirhil/april/hebdobot/Meeting.java

package fr.imirhil.april.hebdobot;

import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Set;

import org.apache.commons.lang.StringUtils;

public class Meeting {
	private static final String SEPARATOR =
			"========================================================================\n";

	private final Set<String> participants = new HashSet<String>();
	private final List<IndividualTopic> individualTopics =
			new LinkedList<IndividualTopic>();
	private final List<CollectiveTopic> collectiveTopics =
			new LinkedList<CollectiveTopic>();
	private final List<Message> messages = new LinkedList<Message>();

	public void add(final Topic topic) {
		if (topic instanceof IndividualTopic) {
			this.individualTopics.add((IndividualTopic) topic);
		} else if (topic instanceof CollectiveTopic) {
			this.collectiveTopics.add((CollectiveTopic) topic);
		}
	}

	public void add(final Message message) {
		this.messages.add(message);
		this.participants.add(message.getAuthor());
	}

	@Override
	public String toString() {
		final StringBuffer buffer = new StringBuffer();
		buffer.append(SEPARATOR);
		buffer.append(getLine("Revue de la semaine en cours", ' '));
		buffer.append(SEPARATOR);
		buffer.append("\n\n");
		buffer.append(SEPARATOR);
		buffer.append("\n");

		buffer.append(getLine("Participants", '-'));
		for (final String participant : this.participants) {
			buffer.append("* " + participant + "\n");
		}
		buffer.append("\n");

		for (final String participant : this.participants) {
			buffer.append(SEPARATOR + "\n");
			buffer.append(getLine(participant, '-'));
			buffer.append("\n");

			for (final IndividualTopic topic : this.individualTopics) {
				buffer.append(getTopic(topic));
				buffer.append("\n");
				for (final Message message : topic.getMessages(participant)) {
					buffer.append("* " + message.getContent() + "\n");
				}
			}

			buffer.append("\n");
		}

		for (final CollectiveTopic topic : this.collectiveTopics) {
			buffer.append("\n");
			buffer.append(SEPARATOR);
			buffer.append(getLine(topic.getTitle(), ' '));
			buffer.append(SEPARATOR + "\n");
			for (final Message message : topic.getMessages()) {
				buffer.append("* " + message.getAuthor() + " : "
						+ message.getContent() + "\n");
			}
		}

		buffer.append("\n");
		buffer.append(SEPARATOR);
		buffer.append(getLine("Log complet", ' '));
		buffer.append(SEPARATOR + "\n");

		for (final Message message : this.messages) {
			buffer.append("* " + message.getAuthor() + " : "
					+ message.getContent() + "\n");
		}

		return buffer.toString();
	}

	private static String getLine(final String content, final Character c) {
		return StringUtils.center(" " + content + " ", SEPARATOR.length(), c)
				+ "\n";
	}

	private static String getTopic(final Topic topic) {
		return "=== " + topic.getTitle() + " ===";
	}
}