import { mergeProps } from "@base-ui/react/merge-props";
import { useRender } from "@base-ui/react/use-render";
import { cva, type VariantProps } from "class-variance-authority";

import { cn } from "../../lib/utils";
import { Separator } from "./separator";

const buttonGroupVariants = cva(
  "flex w-fit items-stretch *:focus:relative *:focus:z-10 *:focus-visible:relative *:focus-visible:z-10 has-[>[data-slot=button-group]]:gap-2 has-[select[aria-hidden=true]:last-child]:[&>[data-slot=select-trigger]:last-of-type]:rounded-r-md [&>[data-slot]]:relative [&>[data-slot=select-trigger]:not([class*='w-'])]:w-fit [&>input]:flex-1",
  {
    variants: {
      orientation: {
        horizontal:
          "*:data-slot:rounded-r-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-r-md! [&>[data-slot]~[data-slot]]:rounded-l-none [&>[data-slot]:has(~[data-slot])]:border-r-0",
        vertical:
          "flex-col *:data-slot:rounded-b-none [&>[data-slot]:not(:has(~[data-slot]))]:rounded-b-md! [&>[data-slot]~[data-slot]]:rounded-t-none [&>[data-slot]:has(~[data-slot])]:border-b-0",
      },
      adjacentBorderTone: {
        default: null,
        subtle: null,
      },
    },
    compoundVariants: [
      {
        adjacentBorderTone: "default",
        className:
          "[&>[data-slot]:not([data-slot=button-group-separator]):hover+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_20%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator]):focus+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[aria-expanded=true]+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_45%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-open]+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_45%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-popup-open]+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_45%,transparent)]",
        orientation: "horizontal",
      },
      {
        adjacentBorderTone: "subtle",
        className:
          "[&>[data-slot]:not([data-slot=button-group-separator]):hover+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_20%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator]):focus+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[aria-expanded=true]+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-open]+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-popup-open]+[data-slot]]:!border-l-[color:color-mix(in_oklab,var(--border)_30%,transparent)]",
        orientation: "horizontal",
      },
      {
        adjacentBorderTone: "default",
        className:
          "[&>[data-slot]:not([data-slot=button-group-separator]):hover+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_20%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator]):focus+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[aria-expanded=true]+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_45%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-open]+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_45%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-popup-open]+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_45%,transparent)]",
        orientation: "vertical",
      },
      {
        adjacentBorderTone: "subtle",
        className:
          "[&>[data-slot]:not([data-slot=button-group-separator]):hover+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_20%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator]):focus+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[aria-expanded=true]+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-open]+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_30%,transparent)] [&>[data-slot]:not([data-slot=button-group-separator])[data-popup-open]+[data-slot]]:!border-t-[color:color-mix(in_oklab,var(--border)_30%,transparent)]",
        orientation: "vertical",
      },
    ],
    defaultVariants: {
      adjacentBorderTone: "default",
      orientation: "horizontal",
    },
  },
);

function ButtonGroup({
  adjacentBorderTone,
  className,
  orientation,
  ...props
}: React.ComponentProps<"div"> & VariantProps<typeof buttonGroupVariants>) {
  return (
    <div
      role="group"
      data-slot="button-group"
      data-orientation={orientation}
      className={cn(
        buttonGroupVariants({ adjacentBorderTone, orientation }),
        className,
      )}
      {...props}
    />
  );
}

function ButtonGroupText({
  className,
  render,
  ...props
}: useRender.ComponentProps<"div">) {
  return useRender({
    defaultTagName: "div",
    props: mergeProps<"div">(
      {
        className: cn(
          "flex items-center gap-2 rounded-md border border-[color:color-mix(in_oklab,var(--border)_12%,transparent)] bg-[color:var(--muted)] px-2.5 text-xs/relaxed font-medium [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
          className,
        ),
      },
      props,
    ),
    render,
    state: {
      slot: "button-group-text",
    },
  });
}

function ButtonGroupSeparator({
  className,
  orientation = "vertical",
  ...props
}: React.ComponentProps<typeof Separator>) {
  return (
    <Separator
      data-slot="button-group-separator"
      orientation={orientation}
      className={cn(
        "relative self-stretch bg-[color:var(--input)] data-horizontal:mx-px data-horizontal:w-auto data-vertical:my-px data-vertical:h-auto",
        className,
      )}
      {...props}
    />
  );
}

const BUTTON_GROUP_FOUNDATION_PREVIEW_TABS = [
  { id: "sm", label: "SM", buttonSize: "sm", iconSize: "icon-sm" },
  { id: "default", label: "Default", buttonSize: "default", iconSize: "icon" },
  { id: "lg", label: "LG", buttonSize: "lg", iconSize: "icon-lg" },
  { id: "xl", label: "XL", buttonSize: "xl", iconSize: "icon-xl" },
] as const;

type ButtonGroupFoundationPreviewTabId =
  (typeof BUTTON_GROUP_FOUNDATION_PREVIEW_TABS)[number]["id"];

export {
  ButtonGroup,
  BUTTON_GROUP_FOUNDATION_PREVIEW_TABS,
  ButtonGroupSeparator,
  ButtonGroupText,
  buttonGroupVariants,
  type ButtonGroupFoundationPreviewTabId,
};