feat(v2)/radio group components

packages/ui/src/components/radio-group/index.ts

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+import { RadioGroup as RadioGroupPrimitive } from 'bits-ui'
+
+import Root from './radio-group.svelte'
+import Item from './radio-group-item.svelte'
+const Input = RadioGroupPrimitive.Input
+
+export {
+  Input,
+  Item,
+  //
+  Root as RadioGroup,
+  Input as RadioGroupInput,
+  Item as RadioGroupItem,
+  Root,
+}

packages/ui/src/components/radio-group/radio-group-item.svelte

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+<script lang="ts">
+  import { Label, RadioGroup as RadioGroupPrimitive } from 'bits-ui'
+  import { Circle } from 'lucide-svelte'
+
+  import { cn } from '../../utils'
+
+  type $$Props = RadioGroupPrimitive.ItemProps & {
+    id: string
+    label: string
+  }
+  type $$Events = RadioGroupPrimitive.ItemEvents
+
+  let className: $$Props['class'] = undefined
+  export let value: $$Props['value']
+  export let id: $$Props['id']
+  export let label: $$Props['label'] = 'label'
+  export { className as class }
+</script>
+
+<div class="flex items-center space-x-2">
+  <RadioGroupPrimitive.Item
+    {value}
+    class="{cn(
+      'peer border-on-surface-placeholder data-[state=checked]:border-primary  text-primary ring-offset-background focus-visible:ring-ring aspect-square h-5 w-5 rounded-full border-2 focus:outline-none focus-visible:ring-2 focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50',
+      className,
+    )}"
+    {...$$restProps}
+    on:click
+  >
+    <div class="flex items-center justify-center">
+      <RadioGroupPrimitive.ItemIndicator>
+        <Circle class="h-2.5 w-2.5 fill-primary text-current" />
+      </RadioGroupPrimitive.ItemIndicator>
+    </div>
+  </RadioGroupPrimitive.Item>
+  <Label.Root
+    for="{id}"
+    class="text-button2 font-normal leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70"
+  >
+    {label}
+  </Label.Root>
+</div>

packages/ui/src/components/radio-group/radio-group.stories.svelte

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+<script context="module" lang="ts">
+  import type { Meta } from '@storybook/svelte'
+
+  import * as RadioGroup from './index.js'
+
+  export const meta = {
+    title: 'Atom/RadioGroup',
+    component: RadioGroup,
+    tags: ['autodocs'],
+    argTypes: {
+      'aria-label': {
+        control: 'text',
+        description: 'string value that labels an interactive element',
+      },
+      value: {
+        description: 'The selected value in the radio group.',
+        control: {
+          type: 'select',
+        },
+        options: ['option-one', 'option-two'],
+        defaultValue: 'option-one',
+      },
+      className: {
+        control: false,
+      },
+      itemValue1: {
+        control: 'text',
+        description: 'Value for the first RadioGroup.Item',
+        defaultValue: 'option-one',
+      },
+      'item1-label': {
+        control: 'text',
+        description: 'Label for the first RadioGroup.Item',
+        defaultValue: 'option 1',
+      },
+      itemValue2: {
+        control: 'text',
+        description: 'Value for the second RadioGroup.Item',
+        defaultValue: 'option-two',
+      },
+      'item2-label': {
+        control: 'text',
+        description: 'Label for the second RadioGroup.Item',
+        defaultValue: 'option 2',
+      },
+      onClick: {
+        action: 'onClick',
+      },
+    },
+  } satisfies Meta<RadioGroup>
+</script>
+
+<script lang="ts">
+  import { Story, Template } from '@storybook/addon-svelte-csf'
+</script>
+
+<Template let:args>
+  <RadioGroup.Root {...args}>
+    <RadioGroup.Item
+      value="{args.itemValue1}"
+      id="{args.itemValue1}"
+      label="{args['item1-label']}"
+      aria-label="{args['aria-label']}"
+    />
+    <RadioGroup.Item
+      value="{args.itemValue2}"
+      id="{args.itemValue2}"
+      label="{args['item2-label']}"
+      aria-label="{args['aria-label']}"
+    />
+  </RadioGroup.Root>
+</Template>
+
+<Story
+  name="Default"
+  args="{{
+    value: 'option-one',
+    itemValue1: 'option-one',
+    'item1-label': 'option 1',
+    itemValue2: 'option-two',
+    'item2-label': 'option 2',
+    'aria-label': 'for example of enable radio group',
+  }}"
+/>
+
+<Story
+  name="Disabled"
+  args="{{
+    itemValue1: 'option-one',
+    'item1-label': 'option 1',
+    itemValue2: 'option-two',
+    'item2-label': 'option 2',
+    disabled: true,
+    'aria-label': 'for example of disabled radio group',
+  }}"
+/>

packages/ui/src/components/radio-group/radio-group.svelte

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+<script lang="ts">
+  import { RadioGroup as RadioGroupPrimitive } from 'bits-ui'
+
+  import { cn } from '../../utils'
+
+  type $$Props = RadioGroupPrimitive.Props
+
+  let className: $$Props['class'] = undefined
+  export let value: $$Props['value'] = undefined
+  export { className as class }
+</script>
+
+<RadioGroupPrimitive.Root
+  bind:value
+  class="{cn('grid gap-2 p-1', className)}"
+  {...$$restProps}
+>
+  <slot />
+</RadioGroupPrimitive.Root>