81 lines
1.5 KiB
TypeScript
81 lines
1.5 KiB
TypeScript
/**
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* Module dependencies
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*/
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import $ from 'cafy';
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import User, { pack as packUser } from '../../models/user';
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import Following from '../../models/following';
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import event from '../../event';
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/**
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* Unfollow a user
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*
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* @param {any} params
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* @param {any} user
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* @return {Promise<any>}
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*/
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module.exports = (params, user) => new Promise(async (res, rej) => {
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const follower = user;
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// Get 'user_id' parameter
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const [userId, userIdErr] = $(params.user_id).id().$;
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if (userIdErr) return rej('invalid user_id param');
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// Check if the followee is yourself
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if (user._id.equals(userId)) {
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return rej('followee is yourself');
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}
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// Get followee
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const followee = await User.findOne({
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_id: userId
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}, {
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fields: {
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data: false,
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'account.profile': false
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}
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});
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if (followee === null) {
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return rej('user not found');
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}
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// Check not following
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const exist = await Following.findOne({
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follower_id: follower._id,
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followee_id: followee._id,
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deleted_at: { $exists: false }
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});
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if (exist === null) {
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return rej('already not following');
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}
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// Delete following
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await Following.update({
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_id: exist._id
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}, {
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$set: {
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deleted_at: new Date()
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}
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});
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// Send response
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res();
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// Decrement following count
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User.update({ _id: follower._id }, {
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$inc: {
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following_count: -1
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}
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});
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// Decrement followers count
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User.update({ _id: followee._id }, {
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$inc: {
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followers_count: -1
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}
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});
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// Publish follow event
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event(follower._id, 'unfollow', await packUser(followee, follower));
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});
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