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import { isAnimatedString } from '@react-spring/shared'
import { AnimatedObject } from './AnimatedObject'
import { AnimatedString } from './AnimatedString'
import { AnimatedValue } from './AnimatedValue'
type Value = number | string
type Source = AnimatedValue<Value>[]
/** An array of animated nodes */
export class AnimatedArray<
T extends ReadonlyArray<Value> = Value[],
> extends AnimatedObject {
declare protected source: Source
constructor(source: T) {
super(source)
}
/** @internal */
static create<T extends ReadonlyArray<Value>>(source: T) {
return new AnimatedArray(source)
}
getValue(): T {
return this.source.map(node => node.getValue()) as any
}
setValue(source: T) {
const payload = this.getPayload()
// Reuse the payload when lengths are equal.
if (source.length == payload.length) {
return payload.map((node, i) => node.setValue(source[i])).some(Boolean)
}
// Remake the payload when length changes.
super.setValue(source.map(makeAnimated))
return true
}
}
function makeAnimated(value: any) {
const nodeType = isAnimatedString(value) ? AnimatedString : AnimatedValue
return nodeType.create(value)
}
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