import { EasingFn , SetAttributeFn , AnimationFn , GetNewPositionsFn , RangePointCoordinates , PointCoordinates , PointComponentProps , PieCoordinates , PathStartCoordinates , PathEndCoordinates , } from '../types' ; internal const getProgress = ( { elapsed , total } ) => Math . min ( elapsed / total , 1 ) ; internal const runAnimation = ( setAttributes , getNewPositions , easing , duration , delay ) => new Promise ( ( resolve ) => { setTimeout ( ( ) => { const time = { start : Date . now ( ) , total : duration , elapsed : 0 , } ; const step = ( ) => { time . elapsed = Date . now ( ) - time . start ; const progress = getProgress ( time ) ; setAttributes ( getNewPositions ( easing ( progress ) ) ) ; if ( progress < 1 ) requestAnimationFrame ( step ) ; } ; resolve ( requestAnimationFrame ( step ) ) ; } , delay ) ; } ) ; internal export const buildAnimation = ( easing , duration ) : AnimationFn => ( startCoords , endCoords , processAnimation , setAttributes , delay = 0 ) => { let animationID ; const stop = ( ) => { if ( animationID ) { cancelAnimationFrame ( animationID ) ; animationID = undefined ; } } ; const run = ( start , end , delayValue ) => { animationID = runAnimation ( setAttributes , processAnimation ( start , end ) , easing , duration , delayValue ) . then ( ( res ) => { animationID = res ; } ) ; } ; run ( startCoords , endCoords , delay ) ; return { update : ( updatedStartCoords , updatedEndCoords , updatedDelay = 0 ) => { stop ( ) ; run ( updatedStartCoords , updatedEndCoords , updatedDelay ) ; } , stop , } ; } ; const lerp = ( a , b , t ) => a + t * ( b - a ) ; internal export const processPointAnimation = ( startCoords , endCoords ) => { return ( progress ) => { return { arg : lerp ( startCoords . arg , endCoords . arg , progress ) , val : lerp ( startCoords . val , endCoords . val , progress ) , } ; } ; } ; internal export const processBarAnimation = ( startCoords , endCoords ) => { return ( progress ) => { return { arg : lerp ( startCoords . arg , endCoords . arg , progress ) , val : lerp ( startCoords . val , endCoords . val , progress ) , startVal : lerp ( startCoords . startVal , endCoords . startVal , progress ) , } ; } ; } ; internal export const processLineAnimation = ( { coordinates } , { coordinates : endCoordinates } ) => { return ( progress ) => { return { coordinates : endCoordinates . map ( ( coord , index ) => { const startCurCoord = coordinates [ index ] ; return { ... coord , arg : lerp ( startCurCoord . arg , coord . arg , progress ) , val : lerp ( startCurCoord . val , coord . val , progress ) , } ; } ) , } ; } ; } ; internal export const processAreaAnimation = ( { coordinates } , { coordinates : endCoordinates } ) => { return ( progress ) => { return { coordinates : endCoordinates . map ( ( coord , index ) => { const startCurCoord = coordinates [ index ] ; return { ... coord , arg : lerp ( startCurCoord . arg , coord . arg , progress ) , val : lerp ( startCurCoord . val , coord . val , progress ) , startVal : lerp ( startCurCoord . startVal , coord . startVal , progress ) , } ; } ) , } ; } ; } ; internal export const processPieAnimation = ( start , end ) => { return ( progress ) => { return { innerRadius : lerp ( start . innerRadius , end . innerRadius , progress ) , outerRadius : lerp ( start . outerRadius , end . outerRadius , progress ) , startAngle : lerp ( start . startAngle , end . startAngle , progress ) , endAngle : lerp ( start . endAngle , end . endAngle , progress ) , } ; } ; } ;