94 lines
1.9 KiB
TypeScript
94 lines
1.9 KiB
TypeScript
import {makeAutoObservable} from 'mobx'
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import {isObj, hasProp} from '../lib/type-guards'
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interface LogEntry {
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id: string
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type?: string
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summary?: string
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details?: string
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ts?: number
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}
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let _lastTs: string
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let _lastId: string
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function genId(): string {
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let candidate = String(Date.now())
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if (_lastTs === candidate) {
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const id = _lastId + 'x'
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_lastId = id
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return id
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}
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_lastTs = candidate
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_lastId = candidate
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return candidate
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}
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export class LogModel {
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entries: LogEntry[] = []
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constructor() {
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makeAutoObservable(this, {serialize: false, hydrate: false})
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}
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serialize(): unknown {
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return {
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entries: this.entries.slice(-100),
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}
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}
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hydrate(v: unknown) {
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if (isObj(v)) {
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if (hasProp(v, 'entries') && Array.isArray(v.entries)) {
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this.entries = v.entries.filter(
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e => isObj(e) && hasProp(e, 'id') && typeof e.id === 'string',
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)
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}
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}
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}
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private add(entry: LogEntry) {
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this.entries.push(entry)
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}
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debug(summary: string, details?: any) {
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if (details && typeof details !== 'string') {
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details = JSON.stringify(details, null, 2)
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}
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console.debug(summary, details || '')
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this.add({
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id: genId(),
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type: 'debug',
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summary,
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details,
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ts: Date.now(),
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})
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}
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warn(summary: string, details?: any) {
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if (details && typeof details !== 'string') {
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details = JSON.stringify(details, null, 2)
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}
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console.warn(summary, details || '')
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this.add({
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id: genId(),
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type: 'warn',
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summary,
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details,
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ts: Date.now(),
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})
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}
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error(summary: string, details?: any) {
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if (details && typeof details !== 'string') {
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details = JSON.stringify(details, null, 2)
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}
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console.error(summary, details || '')
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this.add({
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id: genId(),
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type: 'error',
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summary,
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details,
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ts: Date.now(),
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})
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}
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}
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