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import * as React from "react"
import useEmblaCarousel from "embla-carousel-react";
import { ArrowLeft, ArrowRight } from "lucide-react"
import { cn } from "@/lib/utils"
import { Button } from "@/components/ui/button"
const CarouselContext = React.createContext(null)
function useCarousel() {
const context = React.useContext(CarouselContext)
if (!context) {
throw new Error("useCarousel must be used within a <Carousel />")
}
return context
}
const Carousel = React.forwardRef((
{
orientation = "horizontal",
opts,
setApi,
plugins,
className,
children,
...props
},
ref
) => {
const [carouselRef, api] = useEmblaCarousel({
...opts,
axis: orientation === "horizontal" ? "x" : "y",
}, plugins)
const [canScrollPrev, setCanScrollPrev] = React.useState(false)
const [canScrollNext, setCanScrollNext] = React.useState(false)
const onSelect = React.useCallback((api) => {
if (!api) {
return
}
setCanScrollPrev(api.canScrollPrev())
setCanScrollNext(api.canScrollNext())
}, [])
const scrollPrev = React.useCallback(() => {
api?.scrollPrev()
}, [api])
const scrollNext = React.useCallback(() => {
api?.scrollNext()
}, [api])
const handleKeyDown = React.useCallback((event) => {
if (event.key === "ArrowLeft") {
event.preventDefault()
scrollPrev()
} else if (event.key === "ArrowRight") {
event.preventDefault()
scrollNext()
}
}, [scrollPrev, scrollNext])
React.useEffect(() => {
if (!api || !setApi) {
return
}
setApi(api)
}, [api, setApi])
React.useEffect(() => {
if (!api) {
return
}
onSelect(api)
api.on("reInit", onSelect)
api.on("select", onSelect)
return () => {
api?.off("select", onSelect)
};
}, [api, onSelect])
return (
(<CarouselContext.Provider
value={{
carouselRef,
api: api,
opts,
orientation:
orientation || (opts?.axis === "y" ? "vertical" : "horizontal"),
scrollPrev,
scrollNext,
canScrollPrev,
canScrollNext,
}}>
<div
ref={ref}
onKeyDownCapture={handleKeyDown}
className={cn("relative", className)}
role="region"
aria-roledescription="carousel"
{...props}>
{children}
</div>
</CarouselContext.Provider>)
);
})
Carousel.displayName = "Carousel"
const CarouselContent = React.forwardRef(({ className, ...props }, ref) => {
const { carouselRef, orientation } = useCarousel()
return (
(<div ref={carouselRef} className="overflow-hidden">
<div
ref={ref}
className={cn(
"flex",
orientation === "horizontal" ? "-ml-4" : "-mt-4 flex-col",
className
)}
{...props} />
</div>)
);
})
CarouselContent.displayName = "CarouselContent"
const CarouselItem = React.forwardRef(({ className, ...props }, ref) => {
const { orientation } = useCarousel()
return (
(<div
ref={ref}
role="group"
aria-roledescription="slide"
className={cn(
"min-w-0 shrink-0 grow-0 basis-full",
orientation === "horizontal" ? "pl-4" : "pt-4",
className
)}
{...props} />)
);
})
CarouselItem.displayName = "CarouselItem"
const CarouselPrevious = React.forwardRef(({ className, variant = "outline", size = "icon", ...props }, ref) => {
const { orientation, scrollPrev, canScrollPrev } = useCarousel()
return (
(<Button
ref={ref}
variant={variant}
size={size}
className={cn("absolute h-8 w-8 rounded-full", orientation === "horizontal"
? "-left-12 top-1/2 -translate-y-1/2"
: "-top-12 left-1/2 -translate-x-1/2 rotate-90", className)}
disabled={!canScrollPrev}
onClick={scrollPrev}
{...props}>
<ArrowLeft className="h-4 w-4" />
<span className="sr-only">Previous slide</span>
</Button>)
);
})
CarouselPrevious.displayName = "CarouselPrevious"
const CarouselNext = React.forwardRef(({ className, variant = "outline", size = "icon", ...props }, ref) => {
const { orientation, scrollNext, canScrollNext } = useCarousel()
return (
(<Button
ref={ref}
variant={variant}
size={size}
className={cn("absolute h-8 w-8 rounded-full", orientation === "horizontal"
? "-right-12 top-1/2 -translate-y-1/2"
: "-bottom-12 left-1/2 -translate-x-1/2 rotate-90", className)}
disabled={!canScrollNext}
onClick={scrollNext}
{...props}>
<ArrowRight className="h-4 w-4" />
<span className="sr-only">Next slide</span>
</Button>)
);
})
CarouselNext.displayName = "CarouselNext"
export { Carousel, CarouselContent, CarouselItem, CarouselPrevious, CarouselNext };
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