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/**
* Module dependencies
*/
import $ from 'cafy';
import Post, { pack } from '../../models/post';
/**
* Show a reposts 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 'sinceId' parameter
const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
if (sinceIdErr) return rej('invalid sinceId param');
// Get 'untilId' parameter
const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
if (untilIdErr) return rej('invalid untilId param');
// Check if both of sinceId and untilId is specified
if (sinceId && untilId) {
return rej('cannot set sinceId and untilId');
}
// Lookup post
const post = await Post.findOne({
_id: postId
});
if (post === null) {
return rej('post not found');
}
// Construct query
const sort = {
_id: -1
};
const query = {
repostId: post._id
} as any;
if (sinceId) {
sort._id = 1;
query._id = {
$gt: sinceId
};
} else if (untilId) {
query._id = {
$lt: untilId
};
}
// Issue query
const reposts = await Post
.find(query, {
limit: limit,
sort: sort
});
// Serialize
res(await Promise.all(reposts.map(async post =>
await pack(post, user))));
});
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