59 lines
1.1 KiB
TypeScript
59 lines
1.1 KiB
TypeScript
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/**
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* Module dependencies
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*/
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import $ from 'cafy';
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import Channel from '../../models/channel';
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import Watching from '../../models/channel-watching';
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/**
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* Watch a channel
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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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// Get 'channel_id' parameter
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const [channelId, channelIdErr] = $(params.channel_id).id().$;
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if (channelIdErr) return rej('invalid channel_id param');
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//#region Fetch channel
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const channel = await Channel.findOne({
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_id: channelId
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});
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if (channel === null) {
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return rej('channel not found');
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}
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//#endregion
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//#region Check whether already watching
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const exist = await Watching.findOne({
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user_id: user._id,
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channel_id: channel._id,
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deleted_at: { $exists: false }
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});
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if (exist !== null) {
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return rej('already watching');
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}
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//#endregion
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// Create Watching
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await Watching.insert({
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created_at: new Date(),
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user_id: user._id,
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channel_id: channel._id
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});
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// Send response
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res();
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// Increment watching count
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Channel.update(channel._id, {
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$inc: {
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watching_count: 1
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}
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});
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});
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