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import {type StyleProp, View, type ViewStyle} from 'react-native'
import Animated, {
Extrapolation,
interpolate,
type SharedValue,
useAnimatedStyle,
} from 'react-native-reanimated'
import type React from 'react'
import {isIOS} from '#/platform/detection'
import {usePagerHeaderContext} from '#/view/com/pager/PagerHeaderContext'
export function GrowableAvatar({
children,
style,
}: {
children: React.ReactNode
style?: StyleProp<ViewStyle>
}) {
const pagerContext = usePagerHeaderContext()
// pagerContext should only be present on iOS, but better safe than sorry
if (!pagerContext || !isIOS) {
return <View style={style}>{children}</View>
}
const {scrollY} = pagerContext
return (
<GrowableAvatarInner scrollY={scrollY} style={style}>
{children}
</GrowableAvatarInner>
)
}
function GrowableAvatarInner({
scrollY,
children,
style,
}: {
scrollY: SharedValue<number>
children: React.ReactNode
style?: StyleProp<ViewStyle>
}) {
const animatedStyle = useAnimatedStyle(() => ({
transform: [
{
scale: interpolate(scrollY.get(), [-150, 0], [1.2, 1], {
extrapolateRight: Extrapolation.CLAMP,
}),
},
],
}))
return (
<Animated.View
style={[style, {transformOrigin: 'bottom left'}, animatedStyle]}>
{children}
</Animated.View>
)
}
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