'use strict'; var async = require('async'); var db = require('../database'); var topics = require('../topics'); var plugins = require('../plugins'); module.exports = function (Categories) { Categories.getCategoryTopics = function (data, callback) { async.waterfall([ function (next) { plugins.fireHook('filter:category.topics.prepare', data, next); }, function (data, next) { Categories.getTopicIds(data.cid, data.set, data.reverse, data.start, data.stop, next); }, function (tids, next) { topics.getTopicsByTids(tids, data.uid, next); }, function (topics, next) { if (!Array.isArray(topics) || !topics.length) { return next(null, { topics: [], uid: data.uid }); } for (var i = 0; i < topics.length; i += 1) { topics[i].index = data.start + i; } plugins.fireHook('filter:category.topics.get', { cid: data.cid, topics: topics, uid: data.uid }, next); }, function (results, next) { next(null, { topics: results.topics, nextStart: data.stop + 1 }); }, ], callback); }; Categories.getTopicIds = function (cid, set, reverse, start, stop, callback) { var pinnedTids; var pinnedCount; var totalPinnedCount; async.waterfall([ function (next) { Categories.getPinnedTids(cid, 0, -1, next); }, function (_pinnedTids, next) { totalPinnedCount = _pinnedTids.length; pinnedTids = _pinnedTids.slice(start, stop === -1 ? undefined : stop + 1); pinnedCount = pinnedTids.length; var topicsPerPage = stop - start + 1; var normalTidsToGet = Math.max(0, topicsPerPage - pinnedCount); if (!normalTidsToGet && stop !== -1) { return next(null, []); } if (start > 0 && totalPinnedCount) { start -= totalPinnedCount - pinnedCount; } stop = stop === -1 ? stop : start + normalTidsToGet - 1; if (Array.isArray(set)) { db[reverse ? 'getSortedSetRevIntersect' : 'getSortedSetIntersect']({ sets: set, start: start, stop: stop }, next); } else { db[reverse ? 'getSortedSetRevRange' : 'getSortedSetRange'](set, start, stop, next); } }, function (normalTids, next) { normalTids = normalTids.filter(function (tid) { return pinnedTids.indexOf(tid) === -1; }); next(null, pinnedTids.concat(normalTids)); }, ], callback); }; Categories.getAllTopicIds = function (cid, start, stop, callback) { db.getSortedSetRange(['cid:' + cid + ':tids:pinned', 'cid:' + cid + ':tids'], start, stop, callback); }; Categories.getPinnedTids = function (cid, start, stop, callback) { db.getSortedSetRevRange('cid:' + cid + ':tids:pinned', start, stop, callback); }; Categories.modifyTopicsByPrivilege = function (topics, privileges) { if (!Array.isArray(topics) || !topics.length || privileges.isAdminOrMod) { return; } topics.forEach(function (topic) { if (topic.deleted && !topic.isOwner) { topic.title = '[[topic:topic_is_deleted]]'; topic.slug = topic.tid; topic.teaser = null; topic.noAnchor = true; topic.tags = []; } }); }; Categories.getTopicIndex = function (tid, callback) { console.warn('[Categories.getTopicIndex] deprecated'); callback(null, 1); }; Categories.onNewPostMade = function (cid, pinned, postData, callback) { if (!cid || !postData) { return setImmediate(callback); } async.parallel([ function (next) { db.sortedSetAdd('cid:' + cid + ':pids', postData.timestamp, postData.pid, next); }, function (next) { db.incrObjectField('category:' + cid, 'post_count', next); }, function (next) { if (parseInt(pinned, 10) === 1) { return setImmediate(next); } async.parallel([ function (next) { db.sortedSetAdd('cid:' + cid + ':tids', postData.timestamp, postData.tid, next); }, function (next) { db.sortedSetIncrBy('cid:' + cid + ':tids:posts', 1, postData.tid, next); }, ], function (err) { next(err); }); }, function (next) { Categories.updateRecentTid(cid, postData.tid, next); }, ], callback); }; };