rudeshark.net/src/services/stats.ts

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/**
*
*/
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const nestedProperty = require('nested-property');
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import autobind from 'autobind-decorator';
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import * as mongo from 'mongodb';
import db from '../db/mongodb';
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import Note, { INote } from '../models/note';
import User, { isLocalUser, IUser } from '../models/user';
import DriveFile, { IDriveFile } from '../models/drive-file';
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import { ICollection } from 'monk';
type Obj = { [key: string]: any };
type Partial<T> = {
[P in keyof T]?: Partial<T[P]>;
};
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type ArrayValue<T> = {
[P in keyof T]: T[P] extends number ? Array<T[P]> : ArrayValue<T[P]>;
};
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type Span = 'day' | 'hour';
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//#region Chart Core
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type ChartDocument<T extends Obj> = {
_id: mongo.ObjectID;
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/**
*
*/
group?: any;
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/**
*
*/
date: Date;
/**
*
*/
span: Span;
/**
*
*/
data: T;
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/**
*
*/
unique?: Obj;
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};
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/**
*
*/
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abstract class Chart<T> {
protected collection: ICollection<ChartDocument<T>>;
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protected abstract async generateTemplate(initial: boolean, mostRecentStats?: T): Promise<T>;
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constructor(name: string) {
this.collection = db.get<ChartDocument<T>>(`stats.${name}`);
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this.collection.createIndex({ span: -1, date: -1 }, { unique: true });
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this.collection.createIndex('group');
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}
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@autobind
private convertQuery(x: Obj, path: string): Obj {
const query: Obj = {};
const dive = (x: Obj, path: string) => {
Object.entries(x).forEach(([k, v]) => {
const p = path ? `${path}.${k}` : k;
if (typeof v === 'number') {
query[p] = v;
} else {
dive(v, p);
}
});
};
dive(x, path);
return query;
}
@autobind
private async getCurrentStats(span: Span, group?: Obj): Promise<ChartDocument<T>> {
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const now = new Date();
const y = now.getFullYear();
const m = now.getMonth();
const d = now.getDate();
const h = now.getHours();
const current =
span == 'day' ? new Date(y, m, d) :
span == 'hour' ? new Date(y, m, d, h) :
null;
// 現在(今日または今のHour)の統計
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const currentStats = await this.collection.findOne({
group: group,
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span: span,
date: current
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});
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if (currentStats) {
return currentStats;
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}
// 集計期間が変わってから、初めてのチャート更新なら
// 最も最近の統計を持ってくる
// * 例えば集計期間が「日」である場合で考えると、
// * 昨日何もチャートを更新するような出来事がなかった場合は、
// * 統計がそもそも作られずドキュメントが存在しないということがあり得るため、
// * 「昨日の」と決め打ちせずに「もっとも最近の」とします
const mostRecentStats = await this.collection.findOne({
group: group,
span: span
}, {
sort: {
date: -1
}
});
if (mostRecentStats) {
// 現在の統計を初期挿入
const data = await this.generateTemplate(false, mostRecentStats.data);
const stats = await this.collection.insert({
group: group,
span: span,
date: current,
data: data
});
return stats;
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} else {
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// 統計が存在しなかったら
// * Misskeyインスタンスを建てて初めてのチャート更新時など
// 空の統計を作成
const data = await this.generateTemplate(true);
const stats = await this.collection.insert({
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group: group,
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span: span,
date: current,
data: data
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});
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return stats;
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}
}
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@autobind
protected commit(query: Obj, group?: Obj, uniqueKey?: string, uniqueValue?: string): void {
const update = (stats: ChartDocument<T>) => {
// ユニークインクリメントの場合、指定のキーに指定の値が既に存在していたら弾く
if (uniqueKey && stats.unique && stats.unique[uniqueKey] && stats.unique[uniqueKey].includes(uniqueValue)) return;
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if (uniqueKey) {
query['$push'] = {
[`unique.${uniqueKey}`]: uniqueValue
};
}
this.collection.update({
_id: stats._id
}, query);
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};
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this.getCurrentStats('day', group).then(stats => update(stats));
this.getCurrentStats('hour', group).then(stats => update(stats));
}
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@autobind
protected inc(inc: Partial<T>, group?: Obj): void {
this.commit({
$inc: this.convertQuery(inc, 'data')
}, group);
}
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@autobind
protected incIfUnique(inc: Partial<T>, key: string, value: string, group?: Obj): void {
this.commit({
$inc: this.convertQuery(inc, 'data')
}, group, key, value);
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}
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@autobind
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public async getStats(span: Span, range: number, group?: Obj): Promise<ArrayValue<T>> {
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const promisedChart: Promise<T>[] = [];
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const now = new Date();
const y = now.getFullYear();
const m = now.getMonth();
const d = now.getDate();
const h = now.getHours();
const gt =
span == 'day' ? new Date(y, m, d - range) :
span == 'hour' ? new Date(y, m, d, h - range) : null;
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const stats = await this.collection.find({
group: group,
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span: span,
date: {
$gt: gt
}
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}, {
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sort: {
date: -1
},
fields: {
_id: 0
}
});
for (let i = (range - 1); i >= 0; i--) {
const current =
span == 'day' ? new Date(y, m, d - i) :
span == 'hour' ? new Date(y, m, d, h - i) :
null;
const stat = stats.find(s => s.date.getTime() == current.getTime());
if (stat) {
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promisedChart.unshift(Promise.resolve(stat.data));
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} else { // 隙間埋め
const mostRecent = stats.find(s => s.date.getTime() < current.getTime());
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promisedChart.unshift(this.generateTemplate(false, mostRecent ? mostRecent.data : null));
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}
}
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const chart = await Promise.all(promisedChart);
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const res: ArrayValue<T> = {} as any;
/**
* [{
* x: 1,
* y: 5
* }, {
* x: 2,
* y: 6
* }, {
* x: 3,
* y: 7
* }]
*
*
*
* {
* x: [1, 2, 3],
* y: [5, 6, 7]
* }
*
*
*/
const dive = (x: Obj, path?: string) => {
Object.entries(x).forEach(([k, v]) => {
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const p = path ? `${path}.${k}` : k;
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if (typeof v == 'object') {
dive(v, p);
} else {
nestedProperty.set(res, p, chart.map(s => nestedProperty.get(s, p)));
}
});
};
dive(chart[0]);
return res;
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}
}
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//#endregion
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//#region Users stats
/**
*
*/
type UsersStats = {
local: {
/**
* ()
*/
total: number;
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/**
* ()
*/
inc: number;
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/**
* ()
*/
dec: number;
};
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remote: {
/**
* ()
*/
total: number;
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/**
* ()
*/
inc: number;
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/**
* ()
*/
dec: number;
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};
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};
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class UsersChart extends Chart<UsersStats> {
constructor() {
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super('users');
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}
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@autobind
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protected async generateTemplate(initial: boolean, mostRecentStats?: UsersStats): Promise<UsersStats> {
const [localCount, remoteCount] = initial ? await Promise.all([
User.count({ host: null }),
User.count({ host: { $ne: null } })
]) : [
mostRecentStats ? mostRecentStats.local.total : 0,
mostRecentStats ? mostRecentStats.remote.total : 0
];
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return {
local: {
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total: localCount,
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inc: 0,
dec: 0
},
remote: {
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total: remoteCount,
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inc: 0,
dec: 0
}
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};
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}
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@autobind
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public async update(user: IUser, isAdditional: boolean) {
const update: Obj = {};
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update.total = isAdditional ? 1 : -1;
if (isAdditional) {
update.inc = 1;
} else {
update.dec = 1;
}
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await this.inc({
[isLocalUser(user) ? 'local' : 'remote']: update
});
}
}
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export const usersChart = new UsersChart();
//#endregion
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//#region Notes stats
/**
* 稿
*/
type NotesStats = {
local: {
/**
* 稿 ()
*/
total: number;
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/**
* 稿 ()
*/
inc: number;
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/**
* 稿 ()
*/
dec: number;
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diffs: {
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/**
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* 稿 ()
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*/
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normal: number;
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/**
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* 稿 ()
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*/
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reply: number;
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/**
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* Renoteの投稿数の差分 ()
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*/
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renote: number;
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};
};
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remote: {
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/**
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* 稿 ()
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*/
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total: number;
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/**
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* 稿 ()
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*/
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inc: number;
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/**
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* 稿 ()
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*/
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dec: number;
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diffs: {
/**
* 稿 ()
*/
normal: number;
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/**
* 稿 ()
*/
reply: number;
/**
* Renoteの投稿数の差分 ()
*/
renote: number;
};
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};
};
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class NotesChart extends Chart<NotesStats> {
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constructor() {
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super('notes');
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}
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@autobind
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protected async generateTemplate(initial: boolean, mostRecentStats?: NotesStats): Promise<NotesStats> {
const [localCount, remoteCount] = initial ? await Promise.all([
Note.count({ '_user.host': null }),
Note.count({ '_user.host': { $ne: null } })
]) : [
mostRecentStats ? mostRecentStats.local.total : 0,
mostRecentStats ? mostRecentStats.remote.total : 0
];
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return {
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local: {
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total: localCount,
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inc: 0,
dec: 0,
diffs: {
normal: 0,
reply: 0,
renote: 0
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}
},
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remote: {
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total: remoteCount,
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inc: 0,
dec: 0,
diffs: {
normal: 0,
reply: 0,
renote: 0
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}
}
};
}
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@autobind
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public async update(note: INote, isAdditional: boolean) {
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const update: Obj = {
diffs: {}
};
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update.total = isAdditional ? 1 : -1;
if (isAdditional) {
update.inc = 1;
} else {
update.dec = 1;
}
if (note.replyId != null) {
update.diffs.reply = isAdditional ? 1 : -1;
} else if (note.renoteId != null) {
update.diffs.renote = isAdditional ? 1 : -1;
} else {
update.diffs.normal = isAdditional ? 1 : -1;
}
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await this.inc({
[isLocalUser(note._user) ? 'local' : 'remote']: update
});
}
}
export const notesChart = new NotesChart();
//#endregion
//#region Drive stats
/**
*
*/
type DriveStats = {
local: {
/**
* ()
*/
totalCount: number;
/**
* ()
*/
totalSize: number;
/**
* ()
*/
incCount: number;
/**
* 使 ()
*/
incSize: number;
/**
* ()
*/
decCount: number;
/**
* 使 ()
*/
decSize: number;
};
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remote: {
/**
* ()
*/
totalCount: number;
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/**
* ()
*/
totalSize: number;
/**
* ()
*/
incCount: number;
/**
* 使 ()
*/
incSize: number;
/**
* ()
*/
decCount: number;
/**
* 使 ()
*/
decSize: number;
};
};
class DriveChart extends Chart<DriveStats> {
constructor() {
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super('drive');
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}
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@autobind
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protected async generateTemplate(initial: boolean, mostRecentStats?: DriveStats): Promise<DriveStats> {
const calcSize = (local: boolean) => DriveFile
.aggregate([{
$match: {
'metadata._user.host': local ? null : { $ne: null },
'metadata.deletedAt': { $exists: false }
}
}, {
$project: {
length: true
}
}, {
$group: {
_id: null,
usage: { $sum: '$length' }
}
}])
.then(res => res.length > 0 ? res[0].usage : 0);
const [localCount, remoteCount, localSize, remoteSize] = initial ? await Promise.all([
DriveFile.count({ 'metadata._user.host': null }),
DriveFile.count({ 'metadata._user.host': { $ne: null } }),
calcSize(true),
calcSize(false)
]) : [
mostRecentStats ? mostRecentStats.local.totalCount : 0,
mostRecentStats ? mostRecentStats.remote.totalCount : 0,
mostRecentStats ? mostRecentStats.local.totalSize : 0,
mostRecentStats ? mostRecentStats.remote.totalSize : 0
];
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return {
local: {
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totalCount: localCount,
totalSize: localSize,
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incCount: 0,
incSize: 0,
decCount: 0,
decSize: 0
},
remote: {
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totalCount: remoteCount,
totalSize: remoteSize,
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incCount: 0,
incSize: 0,
decCount: 0,
decSize: 0
}
};
}
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@autobind
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public async update(file: IDriveFile, isAdditional: boolean) {
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const update: Obj = {};
update.totalCount = isAdditional ? 1 : -1;
update.totalSize = isAdditional ? file.length : -file.length;
if (isAdditional) {
update.incCount = 1;
update.incSize = file.length;
} else {
update.decCount = 1;
update.decSize = file.length;
}
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await this.inc({
[isLocalUser(file.metadata._user) ? 'local' : 'remote']: update
});
}
}
export const driveChart = new DriveChart();
//#endregion
//#region Network stats
/**
*
*/
type NetworkStats = {
/**
*
*/
incomingRequests: number;
/**
*
*/
outgoingRequests: number;
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/**
*
* TIP: (totalTime / incomingRequests)
*/
totalTime: number;
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/**
*
*/
incomingBytes: number;
/**
*
*/
outgoingBytes: number;
};
class NetworkChart extends Chart<NetworkStats> {
constructor() {
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super('network');
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}
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@autobind
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protected async generateTemplate(initial: boolean, mostRecentStats?: NetworkStats): Promise<NetworkStats> {
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return {
incomingRequests: 0,
outgoingRequests: 0,
totalTime: 0,
incomingBytes: 0,
outgoingBytes: 0
};
}
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@autobind
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public async update(incomingRequests: number, time: number, incomingBytes: number, outgoingBytes: number) {
const inc: Partial<NetworkStats> = {
incomingRequests: incomingRequests,
totalTime: time,
incomingBytes: incomingBytes,
outgoingBytes: outgoingBytes
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};
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await this.inc(inc);
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}
}
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export const networkChart = new NetworkChart();
//#endregion