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|
'use strict';
/**
* Module dependencies
*/
import * as mongo from 'mongodb';
import Post from '../models/post';
import Like from '../models/like';
import serializeUser from './user';
import serializeDriveFile from './drive-file';
import deepcopy = require('deepcopy');
/**
* Serialize a post
*
* @param {Object} post
* @param {Object} me?
* @param {Object} options?
* @return {Promise<Object>}
*/
const self = (
post: any,
me?: any,
options?: {
serializeReplyTo: boolean,
serializeRepost: boolean,
includeIsLiked: boolean
}
) => new Promise<Object>(async (resolve, reject) => {
const opts = options || {
serializeReplyTo: true,
serializeRepost: true,
includeIsLiked: true
};
let _post: any;
// Populate the post if 'post' is ID
if (mongo.ObjectID.prototype.isPrototypeOf(post)) {
_post = await Post.findOne({
_id: post
});
} else if (typeof post === 'string') {
_post = await Post.findOne({
_id: new mongo.ObjectID(post)
});
} else {
_post = deepcopy(post);
}
const id = _post._id;
// Rename _id to id
_post.id = _post._id;
delete _post._id;
delete _post.mentions;
// Populate user
_post.user = await serializeUser(_post.user_id, me);
if (_post.media_ids) {
// Populate media
_post.media = await Promise.all(_post.media_ids.map(async fileId =>
await serializeDriveFile(fileId)
));
}
if (_post.reply_to_id && opts.serializeReplyTo) {
// Populate reply to post
_post.reply_to = await self(_post.reply_to_id, me, {
serializeReplyTo: false,
serializeRepost: false,
includeIsLiked: false
});
}
if (_post.repost_id && opts.serializeRepost) {
// Populate repost
_post.repost = await self(_post.repost_id, me, {
serializeReplyTo: _post.text == null,
serializeRepost: _post.text == null,
includeIsLiked: _post.text == null
});
}
// Check if it is liked
if (me && opts.includeIsLiked) {
const liked = await Like
.count({
user_id: me._id,
post_id: id
}, {
limit: 1
});
_post.is_liked = liked === 1;
}
resolve(_post);
});
export default self;
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