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;

import fr.imirhil.april.hebdobot.xml.UserService;

public class Meeting {
	private static final UserService USER_SERVICE = new UserService();
	private static final int LENGTH = 74;

	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();
		addBox(buffer, "Revue de la semaine en cours", '#');
		buffer.append("\n");

		buffer.append("\n");
		addBox(buffer, "Participants", '=');
		buffer.append("\n");
		for (final String participant : this.participants) {
			buffer.append("* " + Meeting.USER_SERVICE.getRealName(participant)
					+ "\n");
		}
		buffer.append("\n");

		if (!this.individualTopics.isEmpty()) {
			buffer.append("\n");
			addBox(buffer, "Sujets individuels", '=');
			for (final String participant : this.participants) {
				buffer.append("\n");
				buffer.append(getLine(
						Meeting.USER_SERVICE.getRealName(participant), '-'));
				for (final IndividualTopic topic : this.individualTopics) {
					buffer.append("\n");
					buffer.append(getTopic(topic));
					buffer.append("\n");
					for (final Message message : topic.getMessages(participant)) {
						buffer.append("* " + message.getContent() + "\n");
					}
				}
			}
			buffer.append("\n");
		}

		if (!this.collectiveTopics.isEmpty()) {
			buffer.append("\n");
			addBox(buffer, "Sujets collectifs", '=');
			for (final CollectiveTopic topic : this.collectiveTopics) {
				buffer.append("\n");
				addBox(buffer, topic.getTitle(), '-');
				for (final Message message : topic.getMessages()) {
					buffer.append("* " + message.getAuthor() + " : "
							+ message.getContent() + "\n");
				}
			}
			buffer.append("\n");
		}

		buffer.append("\n");
		addBox(buffer, "Log complet", '=');
		buffer.append("\n");
		for (final Message message : this.messages) {
			buffer.append("* " + message.getAuthor() + " : "
					+ message.getContent() + "\n");
		}

		return buffer.toString();
	}

	private static String getLine(final Character c) {
		return StringUtils.repeat(c.toString(), LENGTH) + "\n";
	}

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

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

	private static void addBox(final StringBuffer buffer, final String title,
			final Character c) {
		buffer.append(getLine(c));
		buffer.append(getLine(title, ' '));
		buffer.append(getLine(c));
	}
}