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import { useEffect, useState } from 'react';
import { calculateProgress } from 'calypso/my-sites/importer/importing-pane';
import type { ImportJobProgress } from 'calypso/blocks/importer/types';
export default function useProgressValue( jobProgress: Partial< ImportJobProgress > = {} ): number {
const isBackupImport = Object.keys( jobProgress ).length === 1 && !! jobProgress.steps;
const [ realProgress, setRealProgress ] = useState( 0 );
const [ movableProgress, setMovableProgress ] = useState( 0 );
// set real progress
useEffect( () => {
const progress = jobProgress ? calculateProgress( jobProgress ) : NaN;
setRealProgress( Number.isNaN( progress ) ? 0 : progress );
}, [ jobProgress ] );
// set movable progress
useEffect( () => {
if ( ! isBackupImport ) {
return;
}
const nextMilestone = calculateProgress(
jobProgress.steps
? { steps: { completed: jobProgress.steps.completed + 1, total: jobProgress.steps.total } }
: {}
);
// calculate movable progress
const interval = setInterval( () => {
if ( movableProgress >= nextMilestone ) {
setMovableProgress( nextMilestone );
} else {
const progress = realProgress > movableProgress ? realProgress : movableProgress;
setMovableProgress( progress + 1 );
}
}, 1000 );
return () => clearInterval( interval );
}, [ realProgress, movableProgress ] );
return isBackupImport ? movableProgress : realProgress;
}
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