36 lines
764 B
TypeScript
36 lines
764 B
TypeScript
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import * as readline from 'node:readline'
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import {BehaviorSubject} from "../util/subject.js";
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import {Lifecycle, LifecycleAware} from "../util/lifecycle.js";
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export class Input extends BehaviorSubject<string> implements LifecycleAware {
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private rl?: readline.Interface
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public setupPrompt(): void {
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if ( this.rl ) {
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this.closePrompt()
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}
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this.rl = readline.createInterface({
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input: process.stdin,
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output: process.stdout,
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prompt: 'str %> ',
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})
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this.rl.prompt()
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this.rl.on('line', async (line) => {
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await this.next(line + '\n')
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this.rl?.prompt(true)
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})
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}
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public closePrompt(): void {
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this.rl?.close()
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this.rl = undefined
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}
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adoptLifecycle(lifecycle: Lifecycle): void {
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lifecycle.onClose(() => this.closePrompt())
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}
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}
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