monkeeShark/src/chart/per-user-following.ts

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2018-10-22 20:36:35 +00:00
import autobind from 'autobind-decorator';
import Chart, { Obj } from './';
import Following from '../models/following';
import { IUser, isLocalUser } from '../models/user';
/**
*
*/
type PerUserFollowingLog = {
local: {
/**
*
*/
followings: {
/**
*
*/
total: number;
/**
*
*/
inc: number;
/**
*
*/
dec: number;
};
/**
*
*/
followers: {
/**
*
*/
total: number;
/**
*
*/
inc: number;
/**
*
*/
dec: number;
};
};
remote: PerUserFollowingLog['local'];
};
class PerUserFollowingChart extends Chart<PerUserFollowingLog> {
constructor() {
super('perUserFollowing', true);
}
@autobind
protected async getTemplate(init: boolean, latest?: PerUserFollowingLog, group?: any): Promise<PerUserFollowingLog> {
const [
localFollowingsCount,
localFollowersCount,
remoteFollowingsCount,
remoteFollowersCount
] = init ? await Promise.all([
Following.count({ followerId: group, '_followee.host': null }),
Following.count({ followeeId: group, '_follower.host': null }),
Following.count({ followerId: group, '_followee.host': { $ne: null } }),
Following.count({ followeeId: group, '_follower.host': { $ne: null } })
]) : [
latest ? latest.local.followings.total : 0,
latest ? latest.local.followers.total : 0,
latest ? latest.remote.followings.total : 0,
latest ? latest.remote.followers.total : 0
];
return {
local: {
followings: {
total: localFollowingsCount,
inc: 0,
dec: 0
},
followers: {
total: localFollowersCount,
inc: 0,
dec: 0
}
},
remote: {
followings: {
total: remoteFollowingsCount,
inc: 0,
dec: 0
},
followers: {
total: remoteFollowersCount,
inc: 0,
dec: 0
}
}
};
}
@autobind
public async update(follower: IUser, followee: IUser, isFollow: boolean) {
const update: Obj = {};
update.total = isFollow ? 1 : -1;
if (isFollow) {
update.inc = 1;
} else {
update.dec = 1;
}
this.inc({
[isLocalUser(follower) ? 'local' : 'remote']: { followings: update }
}, follower._id);
this.inc({
[isLocalUser(followee) ? 'local' : 'remote']: { followers: update }
}, followee._id);
}
}
export default new PerUserFollowingChart();