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'use strict';
/**
* Module dependencies
*/
import User from '../../models/user';
import serialize from '../../serializers/user';
import getFriends from '../../common/get-friends';
/**
* Get recommended users
*
* @param {Object} params
* @param {Object} me
* @return {Promise<object>}
*/
module.exports = (params, me) =>
new Promise(async (res, rej) =>
{
// Get 'limit' parameter
let limit = params.limit;
if (limit !== undefined && limit !== null) {
limit = parseInt(limit, 10);
// From 1 to 100
if (!(1 <= limit && limit <= 100)) {
return rej('invalid limit range');
}
} else {
limit = 10;
}
// Get 'offset' parameter
let offset = params.offset;
if (offset !== undefined && offset !== null) {
offset = parseInt(offset, 10);
} else {
offset = 0;
}
// ID list of the user itself and other users who the user follows
const followingIds = await getFriends(me._id);
const users = await User
.find({
_id: {
$nin: followingIds
}
}, {
limit: limit,
skip: offset,
sort: {
followers_count: -1
}
});
// Serialize
res(await Promise.all(users.map(async user =>
await serialize(user, me, { detail: true }))));
});
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