# Claude Code Development Guide

## Claude Code Integration

This template is optimized for Claude Code with specific patterns and configurations.

### Claude-Specific Patterns

#### Component Generation
```typescript
// Claude: Generate a button component with variants
import { cva, type VariantProps } from "class-variance-authority"
import { forwardRef } from "react"

const buttonVariants = cva(
  "inline-flex items-center justify-center rounded-md text-sm font-medium",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground hover:bg-primary/90",
        destructive: "bg-destructive text-destructive-foreground hover:bg-destructive/90",
        outline: "border border-input bg-background hover:bg-accent hover:text-accent-foreground",
        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80",
        ghost: "hover:bg-accent hover:text-accent-foreground",
        link: "text-primary underline-offset-4 hover:underline",
      },
      size: {
        default: "h-10 px-4 py-2",
        sm: "h-9 rounded-md px-3",
        lg: "h-11 rounded-md px-8",
        icon: "h-10 w-10",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
)

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean
}

const Button = forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, asChild = false, ...props }, ref) => {
    return (
      <button
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        {...props}
      />
    )
  }
)
Button.displayName = "Button"

export { Button, buttonVariants }
```

#### API Service Pattern
```typescript
// Claude: Generate API service with TanStack Query
import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
import { api } from '@/lib/api'

export const useUserData = (userId: string) => {
  return useQuery({
    queryKey: ['user', userId],
    queryFn: () => api.get(`/users/${userId}`).then(res => res.data),
    enabled: !!userId,
  })
}

export const useUpdateUser = () => {
  const queryClient = useQueryClient()
  
  return useMutation({
    mutationFn: (userData: UpdateUserData) => 
      api.put(`/users/${userData.id}`, userData),
    onSuccess: () => {
      queryClient.invalidateQueries({ queryKey: ['users'] })
    },
  })
}
```

### Claude Code Prompts

#### For Component Development
```
Claude, create a [component type] component using Radix UI and Tailwind CSS. Follow the existing patterns in src/components/ui/. Include:

1. Proper TypeScript interfaces
2. Accessibility attributes
3. Responsive design variants
4. ForwardRef implementation
5. Class variance authority for styling
6. Proper exports and displayName
```

#### For Page Development
```
Claude, create a Next.js page using App Router with the following requirements:

1. Use the layout.tsx pattern
2. Include proper metadata
3. Implement loading states with TanStack Query
4. Use UI components from src/components/ui/
5. Follow the existing project structure
6. Include error handling
```

#### For API Integration
```
Claude, create an API service layer that:

1. Uses the existing Axios configuration in src/lib/api.ts
2. Implements TanStack Query hooks
3. Includes proper TypeScript interfaces
4. Handles loading and error states
5. Follows RESTful conventions
```

#### For Form Development
```
Claude, create a form using React Hook Form and Zod:

1. Define Zod schema for validation
2. Use Form components from src/components/ui/form.tsx
3. Integrate with Radix UI input components
4. Implement proper error handling
5. Add submit handler with loading states
```

### Project Structure for Claude

```
src/
├── app/                    # Next.js App Router
│   ├── layout.tsx         # Root layout
│   ├── page.tsx           # Home page
│   └── [route]/           # Dynamic routes
├── components/            # React components
│   ├── ui/               # Radix UI components
│   │   ├── button.tsx
│   │   ├── input.tsx
│   │   └── ...
│   └── common/           # Shared components
├── lib/                  # Utilities
│   ├── api.ts           # HTTP client
│   ├── utils.ts         # Helper functions
│   └── ...
└── hooks/               # Custom React hooks
```

### Best Practices for Claude

1. **Type Safety**: Always use TypeScript interfaces
2. **Accessibility**: Include ARIA attributes and semantic HTML
3. **Performance**: Use React.memo and useCallback appropriately
4. **Testing**: Write tests for components and hooks
5. **Documentation**: Add JSDoc comments for complex logic

### Claude Configuration Files

- `.cursorrules` - Cursor AI development rules
- `AGENTS.md` - General AI agent guidelines
- `CLAUDE.md` - Claude-specific patterns

### Common Claude Commands

```bash
# Generate a new component
claude component Button

# Create a new page
claude page dashboard

# Optimize existing code
claude optimize src/components/Button.tsx

# Generate tests
claude test src/components/Button.tsx
```

### Troubleshooting Claude Issues

1. **Import Errors**: Check file paths and exports
2. **Type Errors**: Verify TypeScript interfaces
3. **Styling Issues**: Confirm Tailwind CSS classes
4. **Build Errors**: Run `pnpm clean` first
5. **Test Failures**: Check test configuration

## Form Component Generation Patterns

### Form Schema Definition
```typescript
// Claude: Generate Zod schema for form validation
import { z } from "zod"

const formSchema = z.object({
  // Define form fields with validation rules
  email: z.string().email("Invalid email address"),
  password: z.string().min(8, "Password must be at least 8 characters"),
  confirmPassword: z.string(),
}).refine((data) => data.password === data.confirmPassword, {
  message: "Passwords don't match",
  path: ["confirmPassword"],
})

type FormData = z.infer<typeof formSchema>
```

### Form Component Implementation
```typescript
// Claude: Generate complete form component
import { useForm } from "react-hook-form"
import { zodResolver } from "@hookform/resolvers/zod"
import { Form, FormControl, FormField, FormItem, FormLabel, FormMessage } from "@/components/ui/form"
import { Input } from "@/components/ui/input"
import { Button } from "@/components/ui/button"

export function UserForm() {
  const form = useForm<FormData>({
    resolver: zodResolver(formSchema),
    defaultValues: {
      email: "",
      password: "",
      confirmPassword: "",
    },
  })

  const onSubmit = (data: FormData) => {
    console.log(data)
  }

  return (
    <Form {...form}>
      <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-4">
        <FormField
          control={form.control}
          name="email"
          render={({ field }) => (
            <FormItem>
              <FormLabel>Email</FormLabel>
              <FormControl>
                <Input placeholder="Enter your email" {...field} />
              </FormControl>
              <FormMessage />
            </FormItem>
          )}
        />
        <Button type="submit">Submit</Button>
      </form>
    </Form>
  )
}
```

### Available Radix UI Components (27 Total)

#### Layout & Navigation
- **Accordion**: Collapsible content sections
- **Collapsible**: Show/hide content areas
- **Navigation Menu**: Complex navigation structures
- **Menubar**: Application menu bars
- **Tabs**: Tabbed content organization
- **Separator**: Visual content dividers

#### Data Display
- **Avatar**: User profile images
- **Card**: Content containers
- **Progress**: Progress indicators
- **Scroll Area**: Custom scrollable areas
- **Aspect Ratio**: Maintain aspect ratios

#### Form Controls
- **Button**: Interactive buttons with variants
- **Checkbox**: Boolean input controls
- **Input**: Text input fields
- **Label**: Form field labels
- **Radio Group**: Single-choice selections
- **Select**: Dropdown selections
- **Slider**: Range input controls
- **Switch**: Toggle controls
- **Textarea**: Multi-line text input
- **Toggle**: Toggle buttons
- **Toggle Group**: Grouped toggle buttons

#### Overlays & Dialogs
- **Alert Dialog**: Confirmation dialogs
- **Dialog**: Modal dialogs
- **Dropdown Menu**: Context menus
- **Popover**: Floating content panels
- **Tooltip**: Hover information

#### Form System
- **Form**: Complete form management
- **FormField**: Field wrapper with validation
- **FormItem**: Form element container
- **FormLabel**: Accessible form labels
- **FormControl**: Input control wrapper
- **FormDescription**: Help text
- **FormMessage**: Error messages