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/**
* Module dependencies
*/
import $ from 'cafy';
import Vote from '../../../models/poll-vote';
import Post, { pack } from '../../../models/post';
/**
* Get recommended polls
*
* @param {any} params
* @param {any} user
* @return {Promise<any>}
*/
module.exports = (params, user) => new Promise(async (res, rej) => {
// Get 'limit' parameter
const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
if (limitErr) return rej('invalid limit param');
// Get 'offset' parameter
const [offset = 0, offsetErr] = $(params.offset).optional.number().min(0).$;
if (offsetErr) return rej('invalid offset param');
// Get votes
const votes = await Vote.find({
userId: user._id
}, {
fields: {
_id: false,
postId: true
}
});
const nin = votes && votes.length != 0 ? votes.map(v => v.postId) : [];
const posts = await Post
.find({
_id: {
$nin: nin
},
userId: {
$ne: user._id
},
poll: {
$exists: true,
$ne: null
}
}, {
limit: limit,
skip: offset,
sort: {
_id: -1
}
});
// Serialize
res(await Promise.all(posts.map(async post =>
await pack(post, user, { detail: true }))));
});
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