55 lines
1.1 KiB
TypeScript
55 lines
1.1 KiB
TypeScript
/**
|
|
* Module dependencies
|
|
*/
|
|
import $ from 'cafy'; import ID from '../../../../cafy-id';
|
|
import Channel from '../../../../models/channel';
|
|
import Watching from '../../../../models/channel-watching';
|
|
|
|
/**
|
|
* Watch a channel
|
|
*/
|
|
module.exports = (params, user) => new Promise(async (res, rej) => {
|
|
// Get 'channelId' parameter
|
|
const [channelId, channelIdErr] = $.type(ID).get(params.channelId);
|
|
if (channelIdErr) return rej('invalid channelId param');
|
|
|
|
//#region Fetch channel
|
|
const channel = await Channel.findOne({
|
|
_id: channelId
|
|
});
|
|
|
|
if (channel === null) {
|
|
return rej('channel not found');
|
|
}
|
|
//#endregion
|
|
|
|
//#region Check whether already watching
|
|
const exist = await Watching.findOne({
|
|
userId: user._id,
|
|
channelId: channel._id,
|
|
deletedAt: { $exists: false }
|
|
});
|
|
|
|
if (exist !== null) {
|
|
return rej('already watching');
|
|
}
|
|
//#endregion
|
|
|
|
// Create Watching
|
|
await Watching.insert({
|
|
createdAt: new Date(),
|
|
userId: user._id,
|
|
channelId: channel._id
|
|
});
|
|
|
|
// Send response
|
|
res();
|
|
|
|
// Increment watching count
|
|
Channel.update(channel._id, {
|
|
$inc: {
|
|
watchingCount: 1
|
|
}
|
|
});
|
|
});
|