'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 '../../shared/utils';

/**
 * Accessible dropdown selector for constrained value choices.
 *
 * @description
 * The correct component for all "choose one from a list" form inputs.
 * Unlike `<DropdownMenu>`, Select is specifically for capturing a form value.
 *
 * @ai-rules
 * 1. NEVER use native `<select>` and `<option>` HTML elements.
 * 2. Always compose the full cascade: `Select > SelectTrigger > SelectContent > SelectItem`.
 * 3. Connect to React Hook Form via `onValueChange` and `value` props on the root `<Select>`.
 */
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> & {
    /**
     * Size variant — matches the Input component sizing scale.
     * - `sm`: h-8 (32px), text-sm
     * - `md`: h-10 (40px), text-base — **default**, aligned with Input default
     * - `lg`: h-12 (48px), text-base
     */
    size?: 'sm' | 'md' | 'lg';
  }
>(({ className, children, size = 'md', ...props }, ref) => {
  const sizeClasses = {
    sm: 'h-8 px-2 py-1 text-sm',
    md: 'h-10 px-3 py-2 text-base',
    lg: 'h-12 px-4 py-3 text-base',
  };

  return (
    <SelectPrimitive.Trigger
      ref={ref}
      data-slot="select-trigger"
      data-size={size}
      className={cn(
        'flex w-full items-center justify-between gap-2 bg-background rounded-[var(--radius)] border border-border transition-colors outline-none whitespace-nowrap text-foreground',
        'data-[placeholder]:text-muted-foreground',
        'focus:ring-2 focus:ring-primary focus:border-transparent',
        'disabled:cursor-not-allowed disabled:opacity-50',
        sizeClasses[size],
        "[&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
        '*:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-2',
        className
      )}
      {...props}
    >
      {children}
      <SelectPrimitive.Icon asChild>
        <ChevronDown className="size-4 opacity-50" />
      </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}
    data-slot="select-scroll-up-button"
    className={cn('flex cursor-default items-center justify-center py-1', className)}
    {...props}
  >
    <ChevronUp className="size-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}
    data-slot="select-scroll-down-button"
    className={cn('flex cursor-default items-center justify-center py-1', className)}
    {...props}
  >
    <ChevronDown className="size-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}
      data-slot="select-content"
      className={cn(
        'bg-popover text-popover-foreground data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2 relative z-50 max-h-(--radix-select-content-available-height) min-w-[8rem] origin-(--radix-select-content-transform-origin) overflow-x-hidden overflow-y-auto rounded-[var(--radius)] border border-border shadow-md',
        position === 'popper' &&
          'data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1',
        className
      )}
      position={position}
      {...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)] scroll-my-1'
        )}
      >
        {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}
    data-slot="select-label"
    className={cn('text-muted-foreground px-2 py-1.5 text-xs', 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}
    data-slot="select-item"
    className={cn(
      "focus:bg-accent focus:text-accent-foreground [&_svg:not([class*='text-'])]:text-muted-foreground relative flex w-full cursor-default items-center gap-2 rounded-sm py-1.5 pr-8 pl-2 text-sm outline-hidden select-none data-[disabled]:pointer-events-none data-[disabled]:opacity-50 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4 *:[span]:last:flex *:[span]:last:items-center *:[span]:last:gap-2",
      className
    )}
    {...props}
  >
    <span className="absolute right-2 flex size-3.5 items-center justify-center">
      <SelectPrimitive.ItemIndicator>
        <Check className="size-4" />
      </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}
    data-slot="select-separator"
    className={cn('bg-border pointer-events-none -mx-1 my-1 h-px', className)}
    {...props}
  />
));
SelectSeparator.displayName = SelectPrimitive.Separator.displayName;

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