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/**
* Module dependencies
*/
import $ from 'cafy';
import Reaction from '../../../models/post-reaction';
import Post from '../../../models/post';
// import event from '../../../event';
/**
* Unreact to 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');
// Fetch unreactee
const post = await Post.findOne({
_id: postId
});
if (post === null) {
return rej('post not found');
}
// if already unreacted
const exist = await Reaction.findOne({
postId: post._id,
userId: user._id,
deletedAt: { $exists: false }
});
if (exist === null) {
return rej('never reacted');
}
// Delete reaction
await Reaction.update({
_id: exist._id
}, {
$set: {
deletedAt: new Date()
}
});
// Send response
res();
const dec = {};
dec[`reactionCounts.${exist.reaction}`] = -1;
// Decrement reactions count
Post.update({ _id: post._id }, {
$inc: dec
});
});
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