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feat(status): setup websocket server
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| import { Bot, Context, Platform } from 'koishi-core' | ||
| import { Time } from 'koishi-utils' | ||
| import { cpus } from 'os' | ||
| import { mem } from 'systeminformation' | ||
|
|
||
| export type Rate = [app: number, total: number] | ||
|
|
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| let usage = getCpuUsage() | ||
| let appRate: number | ||
| let usedRate: number | ||
|
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| async function memoryRate(): Promise<Rate> { | ||
| const { total, active } = await mem() | ||
| return [process.memoryUsage().rss / total, active / total] | ||
| } | ||
|
|
||
| function getCpuUsage() { | ||
| let totalIdle = 0, totalTick = 0 | ||
| const cpuInfo = cpus() | ||
| const usage = process.cpuUsage().user | ||
|
|
||
| for (const cpu of cpuInfo) { | ||
| for (const type in cpu.times) { | ||
| totalTick += cpu.times[type] | ||
| } | ||
| totalIdle += cpu.times.idle | ||
| } | ||
|
|
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| return { | ||
| // microsecond values | ||
| app: usage / 1000, | ||
| // use total value (do not know how to get the cpu on which the koishi is running) | ||
| used: (totalTick - totalIdle) / cpuInfo.length, | ||
| total: totalTick / cpuInfo.length, | ||
| } | ||
| } | ||
|
|
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| function updateCpuUsage() { | ||
| const newUsage = getCpuUsage() | ||
| const totalDifference = newUsage.total - usage.total | ||
| appRate = (newUsage.app - usage.app) / totalDifference | ||
| usedRate = (newUsage.used - usage.used) / totalDifference | ||
| usage = newUsage | ||
| } | ||
|
|
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| export interface BotData { | ||
| username?: string | ||
| selfId: string | ||
| platform: Platform | ||
| code: Bot.Status | ||
| rate?: number | ||
| } | ||
|
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| export namespace BotData { | ||
| export const from = async (bot: Bot) => ({ | ||
| platform: bot.platform, | ||
| selfId: bot.selfId, | ||
| username: bot.username, | ||
| code: await bot.getStatus(), | ||
| rate: bot.counter.slice(1).reduce((prev, curr) => prev + curr, 0), | ||
| } as BotData) | ||
| } | ||
|
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| export interface Profile { | ||
| bots: BotData[] | ||
| memory: Rate | ||
| cpu: Rate | ||
| } | ||
|
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| export namespace Profile { | ||
| export interface Config { | ||
| tick?: number | ||
| } | ||
|
|
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| export async function from(ctx: Context) { | ||
| const [memory, bots] = await Promise.all([ | ||
| memoryRate(), | ||
| Promise.all(ctx.bots.map(BotData.from)), | ||
| ]) | ||
| const cpu: Rate = [appRate, usedRate] | ||
| return { bots, memory, cpu } as Profile | ||
| } | ||
|
|
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| export function apply(ctx: Context, config: Config = {}) { | ||
| const { tick = 5 * Time.second } = config | ||
|
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| ctx.all().before('send', (session) => { | ||
| session.bot.counter[0] += 1 | ||
| }) | ||
|
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| ctx.on('connect', async () => { | ||
| ctx.bots.forEach((bot) => { | ||
| bot.counter = new Array(61).fill(0) | ||
| }) | ||
|
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||
| ctx.setInterval(() => { | ||
| updateCpuUsage() | ||
| ctx.bots.forEach(({ counter }) => { | ||
| counter.unshift(0) | ||
| counter.splice(-1, 1) | ||
| }) | ||
| ctx.emit('status/tick') | ||
| }, tick) | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| export default Profile |
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