import { Device } from "@replay/core" ; type Timer = { timeoutId : number ; callback : ( ) => void ; timeStartedMs : number ; timeRemainingMs : number ; isPaused : boolean ; } ; export function getTimer ( ) { const timerMap = { } ; return { start : ( callback , ms ) => { const timeoutId = window . setTimeout ( ( ) => { delete timerMap [ id ] ; callback ( ) ; } , ms ) ; const id = String ( timeoutId ) ; timerMap [ id ] = { timeoutId , callback , timeStartedMs : Date . now ( ) , timeRemainingMs : ms , isPaused : false , } ; return id ; } , pause : ( id ) => { const timer = timerMap [ id ] ; if ( ! timer || timer . isPaused ) { return ; } const timeElapsed = Date . now ( ) - timer . timeStartedMs ; timer . timeRemainingMs -= timeElapsed ; timer . isPaused = true ; window . clearTimeout ( timer . timeoutId ) ; } , resume : ( id ) => { const timer = timerMap [ id ] ; if ( ! timer || ! timer . isPaused ) { return ; } timer . timeStartedMs = Date . now ( ) ; timer . isPaused = false ; const newTimeoutId = window . setTimeout ( ( ) => { delete timerMap [ id ] ; timer . callback ( ) ; } , timer . timeRemainingMs ) ; timer . timeoutId = newTimeoutId ; } , cancel : ( id ) => { const timer = timerMap [ id ] ; if ( ! timer ) { return ; } window . clearTimeout ( timer . timeoutId ) ; delete timerMap [ id ] ; } , } ; }