'use strict';

var	categories = require('../categories'),
	categoryTools = require('../categoryTools'),
	meta = require('./../meta'),
	user = require('./../user'),

	SocketCategories = {};

SocketCategories.getRecentReplies = function(socket, cid, callback) {
	categoryTools.privileges(cid, socket.uid, function(err, privileges) {
		if (err) {
			return callback(err);
		}

		if (privileges && !privileges.read) {
			return callback(null, []);
		}

		categories.getRecentReplies(cid, socket.uid, 4, callback);
	});
};

SocketCategories.get = function(socket, data, callback) {
	categories.getAllCategories(0, callback);
};

SocketCategories.loadMore = function(socket, data, callback) {
	if(!data) {
		return callback(new Error('invalid data'));
	}

	user.getSettings(socket.uid, function(err, settings) {

		var start = parseInt(data.after, 10),
			end = start + settings.topicsPerPage - 1;

		categories.getCategoryTopics(data.cid, start, end, socket.uid, callback);
	});
};

SocketCategories.getPageCount = function(socket, cid, callback) {
	categories.getPageCount(cid, socket.uid, callback);
};

SocketCategories.getTopicCount = function(socket, cid, callback) {
	categories.getCategoryField(cid, 'topic_count', callback);
};

module.exports = SocketCategories;