import { type ReactElement } from "react";
import * as React from "react";
import { cva, type VariantProps } from "class-variance-authority";
import { cn } from "@/lib/utils";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Textarea } from "@/components/ui/textarea";

/**
 * InputGroup — shadcn/WealthX
 * Base: npx shadcn\@latest add input-group
 * WealthX: removed rounded-md (square corners per brand)
 */
export type InputGroupProps = React.ComponentProps<"div">;

function InputGroup({ className, ...props }: InputGroupProps): ReactElement {
  return (
    <div
      className={cn(
        "group/input-group relative flex w-full items-center border border-input shadow-xs transition-[color,box-shadow] outline-none dark:bg-input/30",
        "h-9 min-w-0 has-[>textarea]:h-auto",

        // Variants based on alignment.
        "has-[>[data-align=inline-start]]:[&>input]:pl-2",
        "has-[>[data-align=inline-end]]:[&>input]:pr-2",
        "has-[>[data-align=block-start]]:h-auto has-[>[data-align=block-start]]:flex-col has-[>[data-align=block-start]]:[&>input]:pb-3",
        "has-[>[data-align=block-end]]:h-auto has-[>[data-align=block-end]]:flex-col has-[>[data-align=block-end]]:[&>input]:pt-3",

        // Focus state.
        "has-[[data-slot=input-group-control]:focus-visible]:border-primary has-[[data-slot=input-group-control]:focus-visible]:ring-[3px] has-[[data-slot=input-group-control]:focus-visible]:ring-primary/20",

        // Error state.
        "has-[[data-slot][aria-invalid=true]]:border-destructive has-[[data-slot][aria-invalid=true]]:ring-destructive/20 dark:has-[[data-slot][aria-invalid=true]]:ring-destructive/40",

        className,
      )}
      data-slot="input-group"
      role="group"
      {...props}
    />
  );
}

const inputGroupAddonVariants = cva(
  "flex h-auto cursor-text items-center justify-center gap-2 py-1.5 text-sm font-medium text-muted-foreground select-none group-data-[disabled=true]/input-group:opacity-50 [&>kbd]:rounded-[calc(var(--radius)-5px)] [&>svg:not([class*='size-'])]:size-4",
  {
    variants: {
      align: {
        "inline-start":
          "order-first pl-3 has-[>button]:ml-[-0.45rem] has-[>kbd]:ml-[-0.35rem]",
        "inline-end":
          "order-last pr-3 has-[>button]:mr-[-0.45rem] has-[>kbd]:mr-[-0.35rem]",
        "block-start":
          "order-first w-full justify-start px-3 pt-3 group-has-[>input]/input-group:pt-2.5 [.border-b]:pb-3",
        "block-end":
          "order-last w-full justify-start px-3 pb-3 group-has-[>input]/input-group:pb-2.5 [.border-t]:pt-3",
      },
    },
    defaultVariants: {
      align: "inline-start",
    },
  },
);

export type InputGroupAddonProps = React.ComponentProps<"div"> &
  VariantProps<typeof inputGroupAddonVariants>;

function InputGroupAddon({
  className,
  align = "inline-start",
  ...props
}: InputGroupAddonProps): ReactElement {
  return (
    // eslint-disable-next-line jsx-a11y/no-noninteractive-element-interactions -- click only forwards focus to the sibling input; the div is not truly interactive
    <div
      className={cn(inputGroupAddonVariants({ align }), className)}
      data-align={align}
      data-slot="input-group-addon"
      onClick={(e) => {
        if ((e.target as HTMLElement).closest("button")) {
          return;
        }
        e.currentTarget.parentElement?.querySelector("input")?.focus();
      }}
      onKeyDown={(e) => {
        if (e.key === "Enter" || e.key === " ") {
          e.currentTarget.parentElement?.querySelector("input")?.focus();
        }
      }}
      role="group"
      {...props}
    />
  );
}

const inputGroupButtonVariants = cva(
  "flex items-center gap-2 text-sm shadow-none",
  {
    variants: {
      size: {
        xs: "h-6 gap-1 px-2 has-[>svg]:px-2 [&>svg:not([class*='size-'])]:size-3.5",
        sm: "h-8 gap-1.5 px-2.5 has-[>svg]:px-2.5",
        "icon-xs": "size-6 p-0 has-[>svg]:p-0",
        "icon-sm": "size-8 p-0 has-[>svg]:p-0",
      },
    },
    defaultVariants: {
      size: "xs",
    },
  },
);

export type InputGroupButtonProps = Omit<
  React.ComponentProps<typeof Button>,
  "size"
> &
  VariantProps<typeof inputGroupButtonVariants>;

function InputGroupButton({
  className,
  type = "button",
  variant = "ghost",
  size = "xs",
  ...props
}: InputGroupButtonProps): ReactElement {
  return (
    <Button
      className={cn(inputGroupButtonVariants({ size }), className)}
      data-size={size}
      type={type}
      variant={variant}
      {...props}
    />
  );
}

export type InputGroupTextProps = React.ComponentProps<"span">;

function InputGroupText({
  className,
  ...props
}: InputGroupTextProps): ReactElement {
  return (
    <span
      className={cn(
        "flex items-center gap-2 text-body-small text-muted-foreground [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4",
        className,
      )}
      {...props}
    />
  );
}

export type InputGroupInputProps = React.ComponentProps<"input">;

function InputGroupInput({
  className,
  ...props
}: InputGroupInputProps): ReactElement {
  return (
    <Input
      className={cn(
        "flex-1 rounded-none border-0 bg-transparent shadow-none focus-visible:ring-0 dark:bg-transparent",
        className,
      )}
      data-slot="input-group-control"
      {...props}
    />
  );
}

export type InputGroupTextareaProps = React.ComponentProps<"textarea">;

function InputGroupTextarea({
  className,
  ...props
}: InputGroupTextareaProps): ReactElement {
  return (
    <Textarea
      className={cn(
        "flex-1 resize-none rounded-none border-0 bg-transparent py-3 shadow-none focus-visible:ring-0 dark:bg-transparent",
        className,
      )}
      data-slot="input-group-control"
      {...props}
    />
  );
}

export {
  InputGroup,
  InputGroupAddon,
  InputGroupButton,
  InputGroupText,
  InputGroupInput,
  InputGroupTextarea,
};