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import autobind from 'autobind-decorator';
import Chart, { Obj, DeepPartial } from '../../core';
import { SchemaType } from '@/misc/schema';
import { Followings, Users } from '@/models/index';
import { Not, IsNull } from 'typeorm';
import { User } from '@/models/entities/user';
import { name, schema } from '../schemas/per-user-following';
type PerUserFollowingLog = SchemaType<typeof schema>;
export default class PerUserFollowingChart extends Chart<PerUserFollowingLog> {
constructor() {
super(name, schema, true);
}
@autobind
protected genNewLog(latest: PerUserFollowingLog): DeepPartial<PerUserFollowingLog> {
return {
local: {
followings: {
total: latest.local.followings.total,
},
followers: {
total: latest.local.followers.total,
}
},
remote: {
followings: {
total: latest.remote.followings.total,
},
followers: {
total: latest.remote.followers.total,
}
}
};
}
@autobind
protected aggregate(logs: PerUserFollowingLog[]): PerUserFollowingLog {
return {
local: {
followings: {
total: logs[0].local.followings.total,
inc: logs.reduce((a, b) => a + b.local.followings.inc, 0),
dec: logs.reduce((a, b) => a + b.local.followings.dec, 0),
},
followers: {
total: logs[0].local.followers.total,
inc: logs.reduce((a, b) => a + b.local.followers.inc, 0),
dec: logs.reduce((a, b) => a + b.local.followers.dec, 0),
},
},
remote: {
followings: {
total: logs[0].remote.followings.total,
inc: logs.reduce((a, b) => a + b.remote.followings.inc, 0),
dec: logs.reduce((a, b) => a + b.remote.followings.dec, 0),
},
followers: {
total: logs[0].remote.followers.total,
inc: logs.reduce((a, b) => a + b.remote.followers.inc, 0),
dec: logs.reduce((a, b) => a + b.remote.followers.dec, 0),
},
},
};
}
@autobind
protected async fetchActual(group: string): Promise<DeepPartial<PerUserFollowingLog>> {
const [
localFollowingsCount,
localFollowersCount,
remoteFollowingsCount,
remoteFollowersCount
] = await Promise.all([
Followings.count({ followerId: group, followeeHost: null }),
Followings.count({ followeeId: group, followerHost: null }),
Followings.count({ followerId: group, followeeHost: Not(IsNull()) }),
Followings.count({ followeeId: group, followerHost: Not(IsNull()) })
]);
return {
local: {
followings: {
total: localFollowingsCount,
},
followers: {
total: localFollowersCount,
}
},
remote: {
followings: {
total: remoteFollowingsCount,
},
followers: {
total: remoteFollowersCount,
}
}
};
}
@autobind
public async update(follower: { id: User['id']; host: User['host']; }, followee: { id: User['id']; host: User['host']; }, isFollow: boolean) {
const update: Obj = {};
update.total = isFollow ? 1 : -1;
if (isFollow) {
update.inc = 1;
} else {
update.dec = 1;
}
this.inc({
[Users.isLocalUser(follower) ? 'local' : 'remote']: { followings: update }
}, follower.id);
this.inc({
[Users.isLocalUser(followee) ? 'local' : 'remote']: { followers: update }
}, followee.id);
}
}
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