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/**
* Module dependencies
*/
import $ from 'cafy';
import Post, { pack } from '../../models/post';
/**
* Show a replies of a post
*
* @param {any} params
* @param {any} user
* @return {Promise<any>}
*/
module.exports = (params, user) => new Promise(async (res, rej) => {
// Get 'postId' parameter
const [postId, postIdErr] = $(params.postId).id().$;
if (postIdErr) return rej('invalid postId param');
// 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 'sort' parameter
const [sort = 'desc', sortError] = $(params.sort).optional.string().or('desc asc').$;
if (sortError) return rej('invalid sort param');
// Lookup post
const post = await Post.findOne({
_id: postId
});
if (post === null) {
return rej('post not found');
}
// Issue query
const replies = await Post
.find({ replyId: post._id }, {
limit: limit,
skip: offset,
sort: {
_id: sort == 'asc' ? 1 : -1
}
});
// Serialize
res(await Promise.all(replies.map(async post =>
await pack(post, user))));
});
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