Toggle Group

"use client"

import * as React from "react"
import { Toggle as TogglePrimitive } from "@base-ui/react/toggle"
import { ToggleGroup as ToggleGroupPrimitive } from "@base-ui/react/toggle-group"
import { type VariantProps } from "class-variance-authority"

import { cn } from "@/lib/utils"
import { toggleVariants } from "@/components/ui/toggle"

const ToggleGroupContext = React.createContext<
  VariantProps<typeof toggleVariants> & {
    spacing?: number
    orientation?: "horizontal" | "vertical"
  }
>({
  size: "default",
  variant: "default",
  spacing: 2,
  orientation: "horizontal",
})

type ToggleGroupChangeDetails = Parameters<
  NonNullable<ToggleGroupPrimitive.Props["onValueChange"]>
>[1]

type ToggleGroupProps = Omit<
  ToggleGroupPrimitive.Props,
  "defaultValue" | "onValueChange" | "value"
> &
  VariantProps<typeof toggleVariants> & {
    defaultValue?: string | readonly string[]
    onValueChange?: (
      value: string | readonly string[],
      eventDetails: ToggleGroupChangeDetails
    ) => void
    spacing?: number
    orientation?: "horizontal" | "vertical"
    type?: "single" | "multiple"
    value?: string | readonly string[]
  }

function ToggleGroup({
  className,
  variant,
  size,
  spacing = 2,
  orientation = "horizontal",
  defaultValue,
  children,
  onValueChange,
  type = "multiple",
  value,
  ...props
}: ToggleGroupProps) {
  const isSingle = type === "single"
  const primitiveDefaultValue =
    typeof defaultValue === "string" ? [defaultValue] : defaultValue
  const primitiveValue = typeof value === "string" ? [value] : value

  return (
    <ToggleGroupPrimitive
      data-slot="toggle-group"
      data-variant={variant}
      data-size={size}
      data-spacing={spacing}
      data-orientation={orientation}
      defaultValue={primitiveDefaultValue}
      value={primitiveValue}
      onValueChange={(nextValue, eventDetails) => {
        onValueChange?.(
          isSingle ? (nextValue[0] ?? "") : nextValue,
          eventDetails
        )
      }}
      style={{ "--gap": spacing } as React.CSSProperties}
      className={cn(
        "group/toggle-group flex w-fit flex-row items-center gap-[--spacing(var(--gap))] data-vertical:flex-col data-vertical:items-stretch",
        className
      )}
      {...props}
    >
      <ToggleGroupContext.Provider
        value={{ variant, size, spacing, orientation }}
      >
        {children}
      </ToggleGroupContext.Provider>
    </ToggleGroupPrimitive>
  )
}

function ToggleGroupItem({
  className,
  children,
  variant = "default",
  size = "default",
  ...props
}: TogglePrimitive.Props & VariantProps<typeof toggleVariants>) {
  const context = React.useContext(ToggleGroupContext)

  return (
    <TogglePrimitive
      data-slot="toggle-group-item"
      data-variant={context.variant || variant}
      data-size={context.size || size}
      data-spacing={context.spacing}
      className={cn(
        "shrink-0 focus:z-10 focus-visible:z-10 group-data-horizontal/toggle-group:data-[spacing=0]:data-[variant=outline]:border-l-0 group-data-vertical/toggle-group:data-[spacing=0]:data-[variant=outline]:border-t-0 group-data-horizontal/toggle-group:data-[spacing=0]:data-[variant=outline]:first:border-l group-data-vertical/toggle-group:data-[spacing=0]:data-[variant=outline]:first:border-t",
        toggleVariants({
          variant: context.variant || variant,
          size: context.size || size,
        }),
        className
      )}
      {...props}
    >
      {children}
    </TogglePrimitive>
  )
}

export { ToggleGroup, ToggleGroupItem }