feat(key-ui): add common components and integrate with main app

package.json

@@ -70,6 +70,8 @@
     "@bfchain/util": "^5.0.0",
     "@bfmeta/sign-util": "^1.3.10",
     "@biochain/bio-sdk": "workspace:*",
+    "@biochain/key-ui": "workspace:*",
+    "@biochain/key-utils": "workspace:*",
     "@biochain/plugin-navigation-sync": "workspace:*",
     "@bnqkl/server-util": "^1.3.4",
     "@bnqkl/wallet-sdk": "^0.23.8",

packages/key-ui/src/alert/Alert.stories.tsx

@@ -0,0 +1,75 @@
+import type { Meta, StoryObj } from '@storybook/react-vite'
+import { Alert } from './Alert'
+
+const meta: Meta<typeof Alert> = {
+  title: 'Components/Alert',
+  component: Alert,
+  parameters: {
+    layout: 'padded',
+  },
+  tags: ['autodocs'],
+  argTypes: {
+    variant: {
+      control: 'select',
+      options: ['info', 'success', 'warning', 'error'],
+    },
+  },
+}
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+const InfoIcon = () => (
+  <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2">
+    <circle cx="12" cy="12" r="10" />
+    <path d="M12 16v-4M12 8h.01" />
+  </svg>
+)
+
+export const Info: Story = {
+  args: {
+    variant: 'info',
+    children: 'This is an informational message.',
+    icon: <InfoIcon />,
+  },
+}
+
+export const Success: Story = {
+  args: {
+    variant: 'success',
+    children: 'Your transaction was successful!',
+    icon: <InfoIcon />,
+  },
+}
+
+export const Warning: Story = {
+  args: {
+    variant: 'warning',
+    children: 'Please review before proceeding.',
+    icon: <InfoIcon />,
+  },
+}
+
+export const Error: Story = {
+  args: {
+    variant: 'error',
+    children: 'Something went wrong. Please try again.',
+    icon: <InfoIcon />,
+  },
+}
+
+export const WithTitle: Story = {
+  args: {
+    variant: 'warning',
+    title: 'Important Notice',
+    children: 'Your session will expire in 5 minutes.',
+    icon: <InfoIcon />,
+  },
+}
+
+export const NoIcon: Story = {
+  args: {
+    variant: 'info',
+    children: 'Alert without an icon.',
+  },
+}

packages/key-ui/src/alert/Alert.tsx

@@ -0,0 +1,37 @@
+'use client'
+import * as React from 'react'
+import { cn } from '@biochain/key-utils'
+
+export type AlertVariant = 'info' | 'success' | 'warning' | 'error'
+
+export interface AlertProps {
+  variant?: AlertVariant
+  title?: string
+  children: React.ReactNode
+  className?: string
+  icon?: React.ReactNode
+}
+
+const variantStyles: Record<AlertVariant, string> = {
+  info: 'bg-info/10 text-info',
+  success: 'bg-success/10 text-success',
+  warning: 'bg-warning/10 text-warning',
+  error: 'bg-destructive/10 text-destructive',
+}
+
+export function Alert({ variant = 'info', title, children, className, icon }: AlertProps) {
+  return (
+    <div role="alert" className={cn('flex gap-3 rounded-lg p-3 text-sm', variantStyles[variant], className)}>
+      {icon && <div className="mt-0.5 size-4 shrink-0">{icon}</div>}
+      <div className="flex-1">
+        {title && <p className="font-medium">{title}</p>}
+        <div className={title ? 'mt-1' : ''}>{children}</div>
+      </div>
+    </div>
+  )
+}
+
+export namespace Alert {
+  export type Props = AlertProps
+  export type Variant = AlertVariant
+}

packages/key-ui/src/alert/index.ts

@@ -0,0 +1,2 @@
+export { Alert } from './Alert'
+export type { AlertProps, AlertVariant } from './Alert'

packages/key-ui/src/empty-state/EmptyState.stories.tsx

@@ -0,0 +1,54 @@
+import type { Meta, StoryObj } from '@storybook/react-vite'
+import { EmptyState } from './EmptyState'
+
+const meta: Meta<typeof EmptyState> = {
+  title: 'Components/EmptyState',
+  component: EmptyState,
+  parameters: {
+    layout: 'centered',
+  },
+  tags: ['autodocs'],
+}
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+const PlaceholderIcon = () => (
+  <svg className="size-12" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+    <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M20 13V6a2 2 0 00-2-2H6a2 2 0 00-2 2v7m16 0v5a2 2 0 01-2 2H6a2 2 0 01-2-2v-5m16 0h-2.586a1 1 0 00-.707.293l-2.414 2.414a1 1 0 01-.707.293h-3.172a1 1 0 01-.707-.293l-2.414-2.414A1 1 0 006.586 13H4" />
+  </svg>
+)
+
+export const Default: Story = {
+  args: {
+    title: 'No items found',
+    description: 'Get started by creating your first item.',
+  },
+}
+
+export const WithIcon: Story = {
+  args: {
+    icon: <PlaceholderIcon />,
+    title: 'No transactions',
+    description: 'Your transaction history will appear here.',
+  },
+}
+
+export const WithAction: Story = {
+  args: {
+    icon: <PlaceholderIcon />,
+    title: 'No wallet connected',
+    description: 'Connect your wallet to get started.',
+    action: (
+      <button className="bg-primary text-primary-foreground rounded-full px-6 py-2 font-medium">
+        Connect Wallet
+      </button>
+    ),
+  },
+}
+
+export const Minimal: Story = {
+  args: {
+    title: 'Nothing here yet',
+  },
+}

packages/key-ui/src/empty-state/EmptyState.tsx

@@ -0,0 +1,30 @@
+'use client'
+import * as React from 'react'
+import { cn } from '@biochain/key-utils'
+
+export interface EmptyStateProps {
+  icon?: React.ReactNode
+  title: string
+  description?: string
+  action?: React.ReactNode
+  className?: string
+  testId?: string
+}
+
+export function EmptyState({ icon, title, description, action, className, testId }: EmptyStateProps) {
+  return (
+    <div
+      {...(testId && { 'data-testid': testId })}
+      className={cn('flex flex-col items-center justify-center px-4 py-12 text-center', className)}
+    >
+      {icon && <div className="text-muted-foreground mb-4">{icon}</div>}
+      <h3 className="text-foreground text-base font-medium @xs:text-lg">{title}</h3>
+      {description && <p className="text-muted-foreground mt-1 max-w-xs text-sm @xs:text-base">{description}</p>}
+      {action && <div className="mt-6">{action}</div>}
+    </div>
+  )
+}
+
+export namespace EmptyState {
+  export type Props = EmptyStateProps
+}

packages/key-ui/src/empty-state/index.ts

@@ -0,0 +1,2 @@
+export { EmptyState } from './EmptyState'
+export type { EmptyStateProps } from './EmptyState'

packages/key-ui/src/gradient-button/GradientButton.stories.tsx

@@ -0,0 +1,104 @@
+import type { Meta, StoryObj } from '@storybook/react-vite'
+import { GradientButton } from './GradientButton'
+
+const meta: Meta<typeof GradientButton> = {
+  title: 'Components/GradientButton',
+  component: GradientButton,
+  parameters: {
+    layout: 'centered',
+  },
+  tags: ['autodocs'],
+  argTypes: {
+    variant: {
+      control: 'select',
+      options: ['blue', 'purple', 'red', 'mint'],
+    },
+    size: {
+      control: 'select',
+      options: ['sm', 'md', 'lg'],
+    },
+  },
+}
+
+export default meta
+type Story = StoryObj<typeof meta>
+
+export const Purple: Story = {
+  args: {
+    variant: 'purple',
+    children: 'Continue',
+  },
+}
+
+export const Blue: Story = {
+  args: {
+    variant: 'blue',
+    children: 'Connect Wallet',
+  },
+}
+
+export const Red: Story = {
+  args: {
+    variant: 'red',
+    children: 'Disconnect',
+  },
+}
+
+export const Mint: Story = {
+  args: {
+    variant: 'mint',
+    children: 'Confirm',
+  },
+}
+
+export const Loading: Story = {
+  args: {
+    variant: 'purple',
+    children: 'Processing...',
+    loading: true,
+  },
+}
+
+export const Disabled: Story = {
+  args: {
+    variant: 'purple',
+    children: 'Disabled',
+    disabled: true,
+  },
+}
+
+export const FullWidth: Story = {
+  args: {
+    variant: 'purple',
+    children: 'Full Width Button',
+    fullWidth: true,
+  },
+  decorators: [
+    (Story) => (
+      <div className="w-80">
+        <Story />
+      </div>
+    ),
+  ],
+}
+
+export const AllSizes: Story = {
+  render: () => (
+    <div className="flex items-center gap-4">
+      <GradientButton size="sm">Small</GradientButton>
+      <GradientButton size="md">Medium</GradientButton>
+      <GradientButton size="lg">Large</GradientButton>
+    </div>
+  ),
+}
+
+export const AllVariants: Story = {
+  render: () => (
+    <div className="flex flex-wrap gap-4">
+      <GradientButton variant="purple">Purple</GradientButton>
+      <GradientButton variant="blue">Blue</GradientButton>
+      <GradientButton variant="red">Red</GradientButton>
+      <GradientButton variant="mint">Mint</GradientButton>
+    </div>
+  ),
+}