B2B-88: add starter kit structure and elements

packages/ui/src/shadcn/button.tsx

@@ -0,0 +1,64 @@
+import * as React from 'react';
+
+import { Slot } from '@radix-ui/react-slot';
+import { cva } from 'class-variance-authority';
+import type { VariantProps } from 'class-variance-authority';
+
+import { cn } from '../lib/utils';
+
+const buttonVariants = cva(
+  'focus-visible:ring-ring inline-flex items-center justify-center rounded-md text-sm font-medium whitespace-nowrap transition-colors focus-visible:ring-1 focus-visible:outline-hidden disabled:pointer-events-none disabled:opacity-50',
+  {
+    variants: {
+      variant: {
+        default:
+          'bg-primary text-primary-foreground hover:bg-primary/90 shadow-xs',
+        destructive:
+          'bg-destructive text-destructive-foreground hover:bg-destructive/90 shadow-xs',
+        outline:
+          'border-input bg-background hover:bg-accent hover:text-accent-foreground border shadow-xs',
+        secondary:
+          'bg-secondary text-secondary-foreground hover:bg-secondary/80 shadow-xs',
+        ghost: 'hover:bg-accent hover:text-accent-foreground',
+        link: 'decoration-primary underline-offset-4 hover:underline',
+      },
+      size: {
+        default: 'h-9 px-4 py-2',
+        sm: 'h-8 rounded-md px-3 text-xs',
+        lg: 'h-10 rounded-md px-8',
+        icon: 'h-9 w-9',
+      },
+    },
+    defaultVariants: {
+      variant: 'default',
+      size: 'default',
+    },
+  },
+);
+
+export interface ButtonProps
+  extends React.ComponentPropsWithRef<'button'>,
+    VariantProps<typeof buttonVariants> {
+  asChild?: boolean;
+}
+
+const Button: React.FC<ButtonProps> = ({
+  className,
+  variant,
+  size,
+  asChild = false,
+  ...props
+}) => {
+  const Comp = asChild ? Slot : 'button';
+
+  return (
+    <Comp
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  );
+};
+
+Button.displayName = 'Button';
+
+export { Button, buttonVariants };