Command

"use client"

import * as React from "react"
import { Command as CommandPrimitive } from "cmdk"
import { SearchIcon } from "lucide-react"

import { cn } from "@/registry/lib/utils"
import {
  Dialog,
  DialogContent,
  DialogDescription,
  DialogHeader,
  DialogTitle,
} from "@/registry/ui/dialog"

function Command({
  className,
  ...props
}: React.ComponentProps<typeof CommandPrimitive>) {
  return (
    <CommandPrimitive
      data-slot="command"
      className={cn(
        "bg-popover text-popover-foreground flex h-full w-full flex-col overflow-hidden rounded-lg",
        className
      )}
      {...props}
    />
  )
}

function CommandDialog({
  title = "Command Palette",
  description = "Search for a command to run...",
  children,
  className,
  showCloseButton = true,
  ...props
}: Omit<React.ComponentProps<typeof Dialog>, "children"> & {
  title?: string
  description?: string
  className?: string
  showCloseButton?: boolean
  children?: React.ReactNode
}) {
  return (
    <Dialog {...props}>
      <DialogContent
        className={cn("overflow-hidden p-0", className)}
        showCloseButton={showCloseButton}
      >
        <DialogHeader className="sr-only">
          <DialogTitle>{title}</DialogTitle>
          <DialogDescription>{description}</DialogDescription>
        </DialogHeader>
        <Command className="[&_[cmdk-group-heading]]:text-muted-foreground **:data-[slot=command-input-wrapper]:h-12 [&_[cmdk-group-heading]]:px-2 [&_[cmdk-group-heading]]:font-medium [&_[cmdk-group]]:px-2 [&_[cmdk-group]:not([hidden])_~[cmdk-group]]:pt-0 [&_[cmdk-input-wrapper]_svg]:h-5 [&_[cmdk-input-wrapper]_svg]:w-5 [&_[cmdk-input]]:h-12 [&_[cmdk-item]]:px-2 [&_[cmdk-item]]:py-3 [&_[cmdk-item]_svg]:h-5 [&_[cmdk-item]_svg]:w-5">
          {children}
        </Command>
      </DialogContent>
    </Dialog>
  )
}

function CommandInput({
  className,
  ...props
}: React.ComponentProps<typeof CommandPrimitive.Input>) {
  return (
    <div
      data-slot="command-input-wrapper"
      className="flex h-10 items-center gap-2 border-b px-3"
    >
      <SearchIcon className="size-4 shrink-0 opacity-50" />
      <CommandPrimitive.Input
        data-slot="command-input"
        className={cn(
          "placeholder:text-muted-foreground flex h-10 w-full bg-transparent py-3 text-sm outline-hidden disabled:cursor-not-allowed disabled:opacity-50",
          className
        )}
        {...props}
      />
    </div>
  )
}

function CommandList({
  className,
  ...props
}: React.ComponentProps<typeof CommandPrimitive.List>) {
  const ref = React.useRef<HTMLDivElement>(null)

  // Edge skim that ramps in with scroll distance (same technique as ScrollFade)
  // applied straight to cmdk's own scroll element - it manages scrolling the
  // selected item into view, so we enhance it in place rather than nesting a
  // second scroller. The mask fades content (and the scrollbar's ends) into the
  // popover surface. cmdk filters items live, so we also observe its inner
  // sizer; otherwise the fade goes stale as results change.
  React.useEffect(() => {
    const el = ref.current
    if (!el) return
    function update() {
      if (!el) return
      const top = Math.min(el.scrollTop, 20)
      const bottom = Math.min(el.scrollHeight - el.clientHeight - el.scrollTop, 20)
      el.style.setProperty("--sf-top", `${Math.max(top, 0)}px`)
      el.style.setProperty("--sf-bottom", `${Math.max(bottom, 0)}px`)
    }
    update()
    el.addEventListener("scroll", update, { passive: true })
    const observer = new ResizeObserver(update)
    observer.observe(el)
    const sizer = el.querySelector("[cmdk-list-sizer]")
    if (sizer) observer.observe(sizer)
    return () => {
      el.removeEventListener("scroll", update)
      observer.disconnect()
    }
  }, [])

  // Layer 1 fades the top/bottom edges; layer 2 keeps the right gutter (the 6px
  // scrollbar lane) opaque so the bar stays crisp. mask-composite unions them.
  const fade =
    "linear-gradient(to bottom, transparent 0, #000 var(--sf-top, 0px), #000 calc(100% - var(--sf-bottom, 0px)), transparent 100%)"
  const keepScrollbar = "linear-gradient(to left, #000 6px, transparent 6px)"
  const image = `${fade}, ${keepScrollbar}`
  const maskStyle: React.CSSProperties = {
    maskImage: image,
    WebkitMaskImage: image,
    maskComposite: "add",
    WebkitMaskComposite: "source-over",
    maskRepeat: "no-repeat",
    WebkitMaskRepeat: "no-repeat",
  }

  return (
    <CommandPrimitive.List
      ref={ref}
      data-slot="command-list"
      style={maskStyle}
      className={cn(
        // scrollbar-custom: the kit's shared thin scrollbar (app/globals.css).
        // pb-2: the group only insets the last item 4px from the edge; add
        // bottom breathing so the final row clears the modal corner (~12px,
        // matching the item's horizontal text inset).
        "scrollbar-custom max-h-75 scroll-py-1 overflow-x-hidden overflow-y-auto pb-2",
        className
      )}
      {...props}
    />
  )
}

function CommandEmpty({
  ...props
}: React.ComponentProps<typeof CommandPrimitive.Empty>) {
  return (
    <CommandPrimitive.Empty
      data-slot="command-empty"
      className="py-6 text-center text-sm"
      {...props}
    />
  )
}

function CommandGroup({
  className,
  ...props
}: React.ComponentProps<typeof CommandPrimitive.Group>) {
  return (
    <CommandPrimitive.Group
      data-slot="command-group"
      className={cn(
        "text-foreground [&_[cmdk-group-heading]]:text-muted-foreground overflow-hidden p-1 [&_[cmdk-group-heading]]:px-2 [&_[cmdk-group-heading]]:py-1.5 [&_[cmdk-group-heading]]:text-xs [&_[cmdk-group-heading]]:font-medium",
        className
      )}
      {...props}
    />
  )
}

function CommandSeparator({
  className,
  ...props
}: React.ComponentProps<typeof CommandPrimitive.Separator>) {
  return (
    <CommandPrimitive.Separator
      data-slot="command-separator"
      className={cn("bg-border -mx-1 h-px", className)}
      {...props}
    />
  )
}

function CommandItem({
  className,
  ...props
}: React.ComponentProps<typeof CommandPrimitive.Item>) {
  return (
    <CommandPrimitive.Item
      data-slot="command-item"
      className={cn(
        "data-[selected=true]:bg-accent-100 dark:data-[selected=true]:bg-accent-900 data-[selected=true]:text-accent data-[selected=true]:[&_svg:not([class*='text-'])]:text-accent [&_svg:not([class*='text-'])]:text-muted-foreground relative flex cursor-pointer items-center gap-2 rounded-md px-2 py-1.5 pointer-coarse:py-3 text-sm outline-hidden select-none data-[disabled=true]:pointer-events-none data-[disabled=true]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-3",
        className
      )}
      {...props}
    />
  )
}

function CommandShortcut({
  className,
  ...props
}: React.ComponentProps<"span">) {
  return (
    <span
      data-slot="command-shortcut"
      className={cn(
        "text-muted-foreground ml-auto text-xs tracking-widest",
        className
      )}
      {...props}
    />
  )
}

export {
  Command,
  CommandDialog,
  CommandInput,
  CommandList,
  CommandEmpty,
  CommandGroup,
  CommandItem,
  CommandShortcut,
  CommandSeparator,
}