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

import { cn } from "@/lib/utils"

const Select = SelectPrimitive.Root

const SelectGroup = SelectPrimitive.Group

const SelectValue = SelectPrimitive.Value

interface SelectTriggerProps extends React.ComponentPropsWithoutRef<typeof SelectPrimitive.Trigger> {
  clearable?: boolean;
  onClear?: () => void;
  hasValue?: boolean;
}

const SelectTrigger = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Trigger>,
  SelectTriggerProps
>(({ className, children, clearable, onClear, hasValue, ...props }, ref) => {
  const clearButtonRef = React.useRef<HTMLSpanElement>(null);

  const handleClear = (e: React.MouseEvent | React.PointerEvent) => {
    e.preventDefault();
    e.stopPropagation();
    onClear?.();
  };

  const handleTriggerPointerDown = (e: React.PointerEvent<HTMLButtonElement>) => {
    // 如果点击的是清空按钮或其子元素，阻止触发器的默认行为
    if (clearButtonRef.current && (e.target === clearButtonRef.current || clearButtonRef.current.contains(e.target as Node))) {
      e.preventDefault();
      e.stopPropagation();
      return;
    }
    props.onPointerDown?.(e);
  };

  return (
    <SelectPrimitive.Trigger
      ref={ref}
      className={cn(
        "flex h-9 w-full items-center justify-between whitespace-nowrap rounded-md border border-input bg-transparent px-3 py-2 text-sm shadow-sm transition-colors placeholder:text-muted-foreground focus-visible:outline-none focus-visible:border-primary focus-visible:ring-1 focus-visible:ring-inset focus-visible:ring-primary/20 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
        className
      )}
      {...props}
      onPointerDown={handleTriggerPointerDown}
    >
      {children}
      <div className="flex items-center gap-1">
        {clearable && hasValue && (
          <span
            ref={clearButtonRef}
            role="button"
            onClick={handleClear}
            className="flex items-center justify-center hover:bg-accent rounded-sm p-0.5 transition-colors cursor-pointer z-10"
            aria-label="清空选择"
          >
            <X className="h-3.5 w-3.5 opacity-50 hover:opacity-100" />
          </span>
        )}
        <SelectPrimitive.Icon asChild>
          <ChevronDown className="h-4 w-4 opacity-50" />
        </SelectPrimitive.Icon>
      </div>
    </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}
      className={cn(
        "relative z-50 max-h-96 min-w-[8rem] overflow-hidden rounded-md border bg-popover text-popover-foreground shadow-md 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",
        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)]"
        )}
      >
        {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 text-sm font-semibold", 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-default select-none items-center rounded-sm py-1.5 pl-2 pr-8 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
      className
    )}
    {...props}
  >
    <span className="absolute right-2 flex h-3.5 w-3.5 items-center justify-center">
      <SelectPrimitive.ItemIndicator>
        <Check className="h-4 w-4" />
      </SelectPrimitive.ItemIndicator>
    </span>
    <SelectPrimitive.ItemText>{children}</SelectPrimitive.ItemText>
  </SelectPrimitive.Item>
))
SelectItem.displayName = SelectPrimitive.Item.displayName

// 支持副标题的选项组件
interface SelectItemWithDescriptionProps extends React.ComponentPropsWithoutRef<typeof SelectPrimitive.Item> {
  label: string;
  description?: string;
}

const SelectItemWithDescription = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Item>,
  SelectItemWithDescriptionProps
>(({ className, label, description, ...props }, ref) => (
  <SelectPrimitive.Item
    ref={ref}
    className={cn(
      "relative flex w-full cursor-default select-none flex-col items-start rounded-sm py-2 pl-2 pr-8 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
      className
    )}
    {...props}
  >
    <span className="absolute right-2 top-2 flex h-3.5 w-3.5 items-center justify-center">
      <SelectPrimitive.ItemIndicator>
        <Check className="h-4 w-4" />
      </SelectPrimitive.ItemIndicator>
    </span>
    <SelectPrimitive.ItemText className="font-medium">{label}</SelectPrimitive.ItemText>
    {description && (
      <span className="text-xs text-muted-foreground mt-0.5">{description}</span>
    )}
  </SelectPrimitive.Item>
))
SelectItemWithDescription.displayName = "SelectItemWithDescription"

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-muted", className)}
    {...props}
  />
))
SelectSeparator.displayName = SelectPrimitive.Separator.displayName

// ClearableSelect - 支持清空功能的Select包装组件
interface ClearableSelectProps {
  value?: string | number | null;
  onValueChange?: (value: string | null) => void;
  placeholder?: string;
  disabled?: boolean;
  children: React.ReactNode;
  defaultValue?: string;
  open?: boolean;
  onOpenChange?: (open: boolean) => void;
}

const ClearableSelect = React.forwardRef<
  React.ElementRef<typeof SelectPrimitive.Root>,
  ClearableSelectProps
>(({ value, onValueChange, children, ...props }, ref) => {
  const hasValue = value !== undefined && value !== null && value !== '';
  const selectProps = hasValue ? { value: value.toString() } : {};

  return (
    <Select
      key={hasValue ? value : 'empty'}
      {...selectProps}
      onValueChange={(val) => {
        onValueChange?.(val || null);
      }}
      {...props}
    >
      {children}
    </Select>
  );
});
ClearableSelect.displayName = "ClearableSelect";

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