"use client";

import * as React from "react";
import * as SelectPrimitive from "@radix-ui/react-select";
import { Check, ChevronDown, ChevronUp } from "lucide-react";
import { cn } from "@/lib/utils";

/**
 * Workbench Select.
 *
 * Radix-backed — keyboard arrow-key navigation, type-to-search,
 * Escape closes, focus restore. Replaces the native `<select>`
 * instances scattered across studio/admin/profile/lesson-editor
 * that all shared a duplicated `selectClass` string. With this
 * primitive in the kit, that string dies.
 *
 * Visual: trigger reads like an Input (same h-9 + border + bg) so
 * form rows stay visually consistent. Content surface mirrors
 * DropdownMenu's chrome. Selected item shows a `Check` at the
 * fixed `ps-8` slot — same convention as DropdownMenuRadioItem.
 *
 * Z-index: `z-popover` (40) — same layer as Popover + DropdownMenu.
 */

const Select = SelectPrimitive.Root;
const SelectGroup = SelectPrimitive.Group;
const SelectValue = SelectPrimitive.Value;

const SelectTrigger = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Trigger>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Trigger>
>(({ className, children, ...props }, ref) => (
  <SelectPrimitive.Trigger
    ref={ref}
    className={cn(
      "flex h-9 w-full items-center justify-between gap-2 rounded-md border border-border bg-background px-3 py-1",
      "font-body text-sm text-foreground",
      "focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 focus:ring-offset-background",
      "disabled:cursor-not-allowed disabled:opacity-50",
      "data-[placeholder]:text-muted-foreground",
      className,
    )}
    {...props}
  >
    {children}
    <SelectPrimitive.Icon asChild>
      <ChevronDown className="h-4 w-4 shrink-0 opacity-60" aria-hidden />
    </SelectPrimitive.Icon>
  </SelectPrimitive.Trigger>
));
SelectTrigger.displayName = SelectPrimitive.Trigger.displayName;

const SelectScrollUpButton = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.ScrollUpButton>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollUpButton>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.ScrollUpButton
    ref={ref}
    className={cn("flex cursor-default items-center justify-center py-1", className)}
    {...props}
  >
    <ChevronUp className="h-4 w-4" />
  </SelectPrimitive.ScrollUpButton>
));
SelectScrollUpButton.displayName = SelectPrimitive.ScrollUpButton.displayName;

const SelectScrollDownButton = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.ScrollDownButton>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.ScrollDownButton>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.ScrollDownButton
    ref={ref}
    className={cn("flex cursor-default items-center justify-center py-1", className)}
    {...props}
  >
    <ChevronDown className="h-4 w-4" />
  </SelectPrimitive.ScrollDownButton>
));
SelectScrollDownButton.displayName = SelectPrimitive.ScrollDownButton.displayName;

const SelectContent = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Content>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Content>
>(({ className, children, position = "popper", ...props }, ref) => (
  <SelectPrimitive.Portal>
    <SelectPrimitive.Content
      ref={ref}
      position={position}
      data-wb-select-content=""
      className={cn(
        "z-popover relative max-h-96 min-w-[8rem] overflow-hidden rounded-md border border-border bg-card text-card-foreground",
        position === "popper" &&
          "data-[side=bottom]:translate-y-1 data-[side=top]:-translate-y-1",
        className,
      )}
      {...props}
    >
      <SelectScrollUpButton />
      <SelectPrimitive.Viewport
        className={cn(
          "p-1",
          position === "popper" &&
            "h-[var(--radix-select-trigger-height)] w-full min-w-[var(--radix-select-trigger-width)]",
        )}
      >
        {children}
      </SelectPrimitive.Viewport>
      <SelectScrollDownButton />
    </SelectPrimitive.Content>
  </SelectPrimitive.Portal>
));
SelectContent.displayName = SelectPrimitive.Content.displayName;

const SelectLabel = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Label>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Label>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.Label
    ref={ref}
    className={cn(
      "px-2 py-1.5 font-mono text-[10px] uppercase tracking-wider text-muted-foreground",
      className,
    )}
    {...props}
  />
));
SelectLabel.displayName = SelectPrimitive.Label.displayName;

const SelectItem = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Item>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Item>
>(({ className, children, ...props }, ref) => (
  <SelectPrimitive.Item
    ref={ref}
    className={cn(
      "relative flex w-full cursor-pointer select-none items-center rounded-sm py-1.5 ps-8 pe-2 font-body text-sm outline-none",
      "transition-colors duration-base",
      "data-[highlighted]:bg-muted data-[highlighted]:text-foreground",
      "data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
      className,
    )}
    {...props}
  >
    <span className="absolute start-2 inline-grid h-4 w-4 place-items-center">
      <SelectPrimitive.ItemIndicator>
        <Check className="h-3.5 w-3.5 text-primary" strokeWidth={2.5} />
      </SelectPrimitive.ItemIndicator>
    </span>
    <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
  </SelectPrimitive.Item>
));
SelectItem.displayName = SelectPrimitive.Item.displayName;

const SelectSeparator = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Separator>,
  React.ComponentPropsWithoutRef<typeof SelectPrimitive.Separator>
>(({ className, ...props }, ref) => (
  <SelectPrimitive.Separator
    ref={ref}
    className={cn("-mx-1 my-1 h-px bg-border", className)}
    {...props}
  />
));
SelectSeparator.displayName = SelectPrimitive.Separator.displayName;

export {
  Select,
  SelectGroup,
  SelectValue,
  SelectTrigger,
  SelectContent,
  SelectLabel,
  SelectItem,
  SelectSeparator,
  SelectScrollUpButton,
  SelectScrollDownButton,
};
