Sharkey/src/server/api/endpoints/posts/reposts.ts

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/**
* Module dependencies
*/
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import $ from 'cafy';
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import Post, { pack } from '../../models/post';
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/**
* Show a reposts of a post
*
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* @param {any} params
* @param {any} user
* @return {Promise<any>}
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*/
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module.exports = (params, user) => new Promise(async (res, rej) => {
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// Get 'postId' parameter
const [postId, postIdErr] = $(params.postId).id().$;
if (postIdErr) return rej('invalid postId param');
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// Get 'limit' parameter
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const [limit = 10, limitErr] = $(params.limit).optional.number().range(1, 100).$;
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if (limitErr) return rej('invalid limit param');
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// Get 'sinceId' parameter
const [sinceId, sinceIdErr] = $(params.sinceId).optional.id().$;
if (sinceIdErr) return rej('invalid sinceId param');
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// Get 'untilId' parameter
const [untilId, untilIdErr] = $(params.untilId).optional.id().$;
if (untilIdErr) return rej('invalid untilId param');
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// Check if both of sinceId and untilId is specified
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if (sinceId && untilId) {
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return rej('cannot set sinceId and untilId');
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}
// Lookup post
const post = await Post.findOne({
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_id: postId
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});
if (post === null) {
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return rej('post not found');
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}
// Construct query
const sort = {
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_id: -1
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};
const query = {
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repostId: post._id
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} as any;
if (sinceId) {
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sort._id = 1;
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query._id = {
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$gt: sinceId
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};
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} else if (untilId) {
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query._id = {
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$lt: untilId
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};
}
// Issue query
const reposts = await Post
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.find(query, {
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limit: limit,
sort: sort
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});
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// Serialize
res(await Promise.all(reposts.map(async post =>
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await pack(post, user))));
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});