389 lines
11 KiB
Markdown
389 lines
11 KiB
Markdown
# React/React Native Component Scaffolding
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You are a React component architecture expert specializing in scaffolding production-ready, accessible, and performant components. Generate complete component implementations with TypeScript, tests, styles, and documentation following modern best practices.
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## Context
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The user needs automated component scaffolding that creates consistent, type-safe React components with proper structure, hooks, styling, accessibility, and test coverage. Focus on reusable patterns and scalable architecture.
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## Requirements
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$ARGUMENTS
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## Instructions
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### 1. Analyze Component Requirements
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```typescript
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interface ComponentSpec {
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name: string;
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type: 'functional' | 'page' | 'layout' | 'form' | 'data-display';
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props: PropDefinition[];
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state?: StateDefinition[];
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hooks?: string[];
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styling: 'css-modules' | 'styled-components' | 'tailwind';
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platform: 'web' | 'native' | 'universal';
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}
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interface PropDefinition {
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name: string;
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type: string;
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required: boolean;
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defaultValue?: any;
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description: string;
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}
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class ComponentAnalyzer {
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parseRequirements(input: string): ComponentSpec {
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// Extract component specifications from user input
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return {
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name: this.extractName(input),
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type: this.inferType(input),
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props: this.extractProps(input),
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state: this.extractState(input),
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hooks: this.identifyHooks(input),
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styling: this.detectStylingApproach(),
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platform: this.detectPlatform()
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};
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}
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}
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```
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### 2. Generate React Component
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```typescript
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interface GeneratorOptions {
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typescript: boolean;
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testing: boolean;
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storybook: boolean;
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accessibility: boolean;
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}
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class ReactComponentGenerator {
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generate(spec: ComponentSpec, options: GeneratorOptions): ComponentFiles {
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return {
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component: this.generateComponent(spec, options),
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types: options.typescript ? this.generateTypes(spec) : null,
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styles: this.generateStyles(spec),
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tests: options.testing ? this.generateTests(spec) : null,
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stories: options.storybook ? this.generateStories(spec) : null,
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index: this.generateIndex(spec)
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};
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}
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generateComponent(spec: ComponentSpec, options: GeneratorOptions): string {
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const imports = this.generateImports(spec, options);
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const types = options.typescript ? this.generatePropTypes(spec) : '';
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const component = this.generateComponentBody(spec, options);
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const exports = this.generateExports(spec);
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return `${imports}\n\n${types}\n\n${component}\n\n${exports}`;
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}
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generateImports(spec: ComponentSpec, options: GeneratorOptions): string {
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const imports = ["import React, { useState, useEffect } from 'react';"];
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if (spec.styling === 'css-modules') {
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imports.push(`import styles from './${spec.name}.module.css';`);
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} else if (spec.styling === 'styled-components') {
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imports.push("import styled from 'styled-components';");
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}
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if (options.accessibility) {
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imports.push("import { useA11y } from '@/hooks/useA11y';");
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}
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return imports.join('\n');
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}
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generatePropTypes(spec: ComponentSpec): string {
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const props = spec.props.map(p => {
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const optional = p.required ? '' : '?';
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const comment = p.description ? ` /** ${p.description} */\n` : '';
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return `${comment} ${p.name}${optional}: ${p.type};`;
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}).join('\n');
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return `export interface ${spec.name}Props {\n${props}\n}`;
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}
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generateComponentBody(spec: ComponentSpec, options: GeneratorOptions): string {
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const propsType = options.typescript ? `: React.FC<${spec.name}Props>` : '';
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const destructuredProps = spec.props.map(p => p.name).join(', ');
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let body = `export const ${spec.name}${propsType} = ({ ${destructuredProps} }) => {\n`;
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// Add state hooks
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if (spec.state) {
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body += spec.state.map(s =>
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` const [${s.name}, set${this.capitalize(s.name)}] = useState${options.typescript ? `<${s.type}>` : ''}(${s.initial});\n`
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).join('');
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body += '\n';
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}
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// Add effects
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if (spec.hooks?.includes('useEffect')) {
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body += ` useEffect(() => {\n`;
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body += ` // TODO: Add effect logic\n`;
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body += ` }, [${destructuredProps}]);\n\n`;
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}
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// Add accessibility
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if (options.accessibility) {
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body += ` const a11yProps = useA11y({\n`;
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body += ` role: '${this.inferAriaRole(spec.type)}',\n`;
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body += ` label: ${spec.props.find(p => p.name === 'label')?.name || `'${spec.name}'`}\n`;
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body += ` });\n\n`;
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}
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// JSX return
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body += ` return (\n`;
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body += this.generateJSX(spec, options);
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body += ` );\n`;
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body += `};`;
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return body;
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}
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generateJSX(spec: ComponentSpec, options: GeneratorOptions): string {
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const className = spec.styling === 'css-modules' ? `className={styles.${this.camelCase(spec.name)}}` : '';
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const a11y = options.accessibility ? '{...a11yProps}' : '';
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return ` <div ${className} ${a11y}>\n` +
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` {/* TODO: Add component content */}\n` +
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` </div>\n`;
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}
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}
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```
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### 3. Generate React Native Component
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```typescript
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class ReactNativeGenerator {
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generateComponent(spec: ComponentSpec): string {
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return `
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import React, { useState } from 'react';
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import {
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View,
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Text,
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StyleSheet,
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TouchableOpacity,
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AccessibilityInfo
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} from 'react-native';
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interface ${spec.name}Props {
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${spec.props.map(p => ` ${p.name}${p.required ? '' : '?'}: ${this.mapNativeType(p.type)};`).join('\n')}
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}
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export const ${spec.name}: React.FC<${spec.name}Props> = ({
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${spec.props.map(p => p.name).join(',\n ')}
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}) => {
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return (
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<View
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style={styles.container}
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accessible={true}
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accessibilityLabel="${spec.name} component"
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>
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<Text style={styles.text}>
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{/* Component content */}
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</Text>
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</View>
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);
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};
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const styles = StyleSheet.create({
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container: {
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flex: 1,
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padding: 16,
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backgroundColor: '#fff',
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},
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text: {
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fontSize: 16,
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color: '#333',
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},
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});
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`;
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}
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mapNativeType(webType: string): string {
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const typeMap: Record<string, string> = {
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'string': 'string',
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'number': 'number',
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'boolean': 'boolean',
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'React.ReactNode': 'React.ReactNode',
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'Function': '() => void'
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};
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return typeMap[webType] || webType;
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}
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}
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```
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### 4. Generate Component Tests
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```typescript
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class ComponentTestGenerator {
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generateTests(spec: ComponentSpec): string {
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return `
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import { render, screen, fireEvent } from '@testing-library/react';
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import { ${spec.name} } from './${spec.name}';
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describe('${spec.name}', () => {
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const defaultProps = {
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${spec.props.filter(p => p.required).map(p => ` ${p.name}: ${this.getMockValue(p.type)},`).join('\n')}
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};
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it('renders without crashing', () => {
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render(<${spec.name} {...defaultProps} />);
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expect(screen.getByRole('${this.inferAriaRole(spec.type)}')).toBeInTheDocument();
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});
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it('displays correct content', () => {
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render(<${spec.name} {...defaultProps} />);
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expect(screen.getByText(/content/i)).toBeVisible();
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});
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${spec.props.filter(p => p.type.includes('()') || p.name.startsWith('on')).map(p => `
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it('calls ${p.name} when triggered', () => {
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const mock${this.capitalize(p.name)} = jest.fn();
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render(<${spec.name} {...defaultProps} ${p.name}={mock${this.capitalize(p.name)}} />);
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const trigger = screen.getByRole('button');
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fireEvent.click(trigger);
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expect(mock${this.capitalize(p.name)}).toHaveBeenCalledTimes(1);
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});`).join('\n')}
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it('meets accessibility standards', async () => {
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const { container } = render(<${spec.name} {...defaultProps} />);
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const results = await axe(container);
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expect(results).toHaveNoViolations();
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});
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});
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`;
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}
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getMockValue(type: string): string {
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if (type === 'string') return "'test value'";
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if (type === 'number') return '42';
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if (type === 'boolean') return 'true';
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if (type.includes('[]')) return '[]';
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if (type.includes('()')) return 'jest.fn()';
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return '{}';
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}
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}
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```
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### 5. Generate Styles
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```typescript
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class StyleGenerator {
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generateCSSModule(spec: ComponentSpec): string {
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const className = this.camelCase(spec.name);
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return `
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.${className} {
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display: flex;
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flex-direction: column;
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padding: 1rem;
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background-color: var(--bg-primary);
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}
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.${className}Title {
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font-size: 1.5rem;
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font-weight: 600;
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color: var(--text-primary);
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margin-bottom: 0.5rem;
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}
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.${className}Content {
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flex: 1;
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color: var(--text-secondary);
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}
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`;
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}
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generateStyledComponents(spec: ComponentSpec): string {
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return `
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import styled from 'styled-components';
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export const ${spec.name}Container = styled.div\`
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display: flex;
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flex-direction: column;
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padding: \${({ theme }) => theme.spacing.md};
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background-color: \${({ theme }) => theme.colors.background};
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\`;
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export const ${spec.name}Title = styled.h2\`
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font-size: \${({ theme }) => theme.fontSize.lg};
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font-weight: 600;
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color: \${({ theme }) => theme.colors.text.primary};
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margin-bottom: \${({ theme }) => theme.spacing.sm};
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\`;
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`;
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}
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generateTailwind(spec: ComponentSpec): string {
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return `
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// Use these Tailwind classes in your component:
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// Container: "flex flex-col p-4 bg-white rounded-lg shadow"
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// Title: "text-xl font-semibold text-gray-900 mb-2"
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// Content: "flex-1 text-gray-700"
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`;
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}
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}
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```
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### 6. Generate Storybook Stories
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```typescript
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class StorybookGenerator {
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generateStories(spec: ComponentSpec): string {
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return `
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import type { Meta, StoryObj } from '@storybook/react';
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import { ${spec.name} } from './${spec.name}';
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const meta: Meta<typeof ${spec.name}> = {
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title: 'Components/${spec.name}',
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component: ${spec.name},
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tags: ['autodocs'],
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argTypes: {
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${spec.props.map(p => ` ${p.name}: { control: '${this.inferControl(p.type)}', description: '${p.description}' },`).join('\n')}
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},
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};
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export default meta;
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type Story = StoryObj<typeof ${spec.name}>;
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export const Default: Story = {
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args: {
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${spec.props.map(p => ` ${p.name}: ${p.defaultValue || this.getMockValue(p.type)},`).join('\n')}
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},
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};
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export const Interactive: Story = {
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args: {
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...Default.args,
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},
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};
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`;
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}
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inferControl(type: string): string {
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if (type === 'string') return 'text';
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if (type === 'number') return 'number';
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if (type === 'boolean') return 'boolean';
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if (type.includes('[]')) return 'object';
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return 'text';
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}
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}
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```
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## Output Format
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1. **Component File**: Fully implemented React/React Native component
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2. **Type Definitions**: TypeScript interfaces and types
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3. **Styles**: CSS modules, styled-components, or Tailwind config
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4. **Tests**: Complete test suite with coverage
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5. **Stories**: Storybook stories for documentation
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6. **Index File**: Barrel exports for clean imports
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Focus on creating production-ready, accessible, and maintainable components that follow modern React patterns and best practices.
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