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* Package Scaffolding Generator
* Generates basic scaffolding for optional @coherent.js packages
*/
import { getCLIVersion, getDependencyRange } from '../utils/version.js';
// Get current CLI version automatically
const cliVersion = getCLIVersion();
const cliRange = getDependencyRange(cliVersion);
/**
* Generate @coherent.js/api scaffolding
*/
export function generateApiScaffolding() {
const routes = `
import { createRouter } from '@coherent.js/api';
const router = createRouter();
// Business Logic
async function getUserById(id) {
return { id, name: 'Example User', email: 'user@example.com' };
}
async function createUser(data) {
return { id: 1, ...data };
}
// Router Definitions (for Express/Fastify/Koa usage).
// Handlers return plain data; the router serializes objects as JSON.
router.get('/users/:id', async (req) => {
const id = Number(req.params.id);
return getUserById(id);
});
router.post('/users', async (req) => {
return createUser(req.body);
});
// Handler for GET /api/users/:id (Built-in Server)
export async function getUsersByIdHandler(req, res) {
try {
const { id } = req.params;
const result = await getUserById(id);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(result));
} catch (error) {
console.error('API Error:', error);
res.writeHead(500, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ error: 'Internal server error' }));
}
}
// Handler for POST /api/users (Built-in Server)
export async function postUsersHandler(req, res) {
try {
let body = '';
req.on('data', chunk => {
body += chunk.toString();
});
req.on('end', async () => {
try {
const parsedBody = JSON.parse(body);
const result = await createUser(parsedBody);
res.writeHead(200, { 'Content-Type': 'application/json' });
res.end(JSON.stringify(result));
} catch (error) {
console.error('API Error:', error);
res.writeHead(500, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ error: 'Internal server error' }));
}
});
} catch (error) {
console.error('API Error:', error);
res.writeHead(500, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ error: 'Internal server error' }));
}
}
// For built-in HTTP server compatibility
export function setupRoutes() {
return [
{
path: '/api/users/:id',
method: 'GET',
handler: getUsersByIdHandler
},
{
path: '/api/users',
method: 'POST',
handler: postUsersHandler
}
];
}
export default router;
`;
return {
'src/api/routes.js': routes,
dependencies: {
'@coherent.js/api': cliRange
}
};
}
/**
* Generate @coherent.js/client scaffolding
*/
export function generateClientScaffolding() {
const hydration = `
import { hydrate } from '@coherent.js/client';
// Hydrate interactive components on page load
document.addEventListener('DOMContentLoaded', () => {
// Find all components marked for hydration
const components = document.querySelectorAll('[data-hydrate]');
components.forEach(async (element) => {
const componentName = element.getAttribute('data-hydrate');
try {
// Dynamically import component
const module = await import(\`/components/\${componentName}.js\`);
const Component = module.default || module[componentName];
// Hydrate component
hydrate(element, Component);
} catch (error) {
console.error(\`Failed to hydrate component: \${componentName}\`, error);
}
});
});
`;
const interactiveExample = `
/**
* Example interactive component for client-side hydration
*/
export function InteractiveCounter(props = {}) {
const { initialCount = 0 } = props;
return {
div: {
'data-hydrate': 'InteractiveCounter',
'data-count': initialCount,
className: 'counter',
children: [
{
button: {
className: 'counter-button',
'data-action': 'decrement',
text: '-'
}
},
{
span: {
className: 'counter-value',
text: String(initialCount)
}
},
{
button: {
className: 'counter-button',
'data-action': 'increment',
text: '+'
}
}
]
}
};
}
// Client-side hydration logic (safe to import on the server; only does
// anything when called with a DOM element in the browser)
export function hydrateCounter(element) {
let count = parseInt(element.getAttribute('data-count') || '0');
const valueSpan = element.querySelector('.counter-value');
element.addEventListener('click', (e) => {
if (e.target.matches('[data-action="increment"]')) {
count++;
valueSpan.textContent = count;
} else if (e.target.matches('[data-action="decrement"]')) {
count--;
valueSpan.textContent = count;
}
});
}
`;
return {
'public/js/hydration.js': hydration,
'src/components/InteractiveCounter.js': interactiveExample,
dependencies: {
'@coherent.js/client': cliRange
}
};
}
/**
* Generate @coherent.js/i18n scaffolding
*/
export function generateI18nScaffolding() {
const config = `
import { readFileSync } from 'node:fs';
import { createTranslator } from '@coherent.js/i18n';
const loadLocale = (locale) =>
JSON.parse(readFileSync(new URL(\`./locales/\${locale}.json\`, import.meta.url), 'utf8'));
export const translator = createTranslator({
defaultLocale: 'en',
fallbackLocale: 'en'
});
for (const locale of ['en', 'fr', 'es']) {
translator.addTranslations(locale, loadLocale(locale));
}
// Usage:
// translator.t('common.welcome')
// translator.t('common.hello', { name: 'Ada' })
// translator.setLocale('fr')
`;
const enLocale = JSON.stringify({
common: {
welcome: 'Welcome',
hello: 'Hello, {{name}}!',
loading: 'Loading...'
},
nav: {
home: 'Home',
about: 'About',
contact: 'Contact'
}
}, null, 2);
const frLocale = JSON.stringify({
common: {
welcome: 'Bienvenue',
hello: 'Bonjour, {{name}}!',
loading: 'Chargement...'
},
nav: {
home: 'Accueil',
about: 'À propos',
contact: 'Contact'
}
}, null, 2);
const esLocale = JSON.stringify({
common: {
welcome: 'Bienvenido',
hello: '¡Hola, {{name}}!',
loading: 'Cargando...'
},
nav: {
home: 'Inicio',
about: 'Acerca de',
contact: 'Contacto'
}
}, null, 2);
return {
'src/i18n/config.js': config,
'src/i18n/locales/en.json': enLocale,
'src/i18n/locales/fr.json': frLocale,
'src/i18n/locales/es.json': esLocale,
dependencies: {
'@coherent.js/i18n': cliRange
}
};
}
/**
* Generate @coherent.js/forms scaffolding
*/
export function generateFormsScaffolding() {
const exampleForm = `
import { createFormBuilder } from '@coherent.js/forms';
export function ContactForm() {
const form = createFormBuilder({
fields: [
{ name: 'name', type: 'text', label: 'Name', required: true },
{ name: 'email', type: 'email', label: 'Email', required: true },
{ name: 'message', type: 'textarea', label: 'Message', required: true }
]
});
return form.buildForm({ submitText: 'Submit' });
}
`;
return {
'src/components/ContactForm.js': exampleForm,
dependencies: {
'@coherent.js/forms': cliRange
}
};
}
/**
* Generate @coherent.js/devtools scaffolding
*/
export function generateDevtoolsScaffolding() {
const config = `
import { inspect, createProfiler, createLogger } from '@coherent.js/devtools';
// Dev-time helpers — import these where useful during development.
export const profiler = createProfiler();
export const logger = createLogger();
/**
* Log a component tree analysis to the console (development only).
*/
export function inspectComponent(component) {
if (process.env.NODE_ENV !== 'production') {
return inspect(component);
}
}
`;
return {
'src/utils/devtools.js': config,
dependencies: {
'@coherent.js/devtools': cliRange
}
};
}
/**
* Generate @coherent.js/seo scaffolding
*/
export function generateSeoScaffolding(projectName = 'My App') {
const metaHelper = `
import { generateMeta, generateSitemap } from '@coherent.js/seo';
export function getPageMeta(page, data = {}) {
const baseUrl = process.env.BASE_URL || 'https://example.com';
const metaConfigs = {
home: {
title: 'Welcome to ${projectName}',
description: 'A ${projectName} application built with Coherent.js',
image: { url: \`\${baseUrl}/images/og-home.jpg\` },
canonical: baseUrl
},
about: {
title: 'About - ${projectName}',
description: 'Learn more about ${projectName}',
image: { url: \`\${baseUrl}/images/og-about.jpg\` },
canonical: \`\${baseUrl}/about\`
}
};
const config = metaConfigs[page] || metaConfigs.home;
return generateMeta({
...config,
siteName: '${projectName}',
locale: 'en_US',
...data
});
}
export function getSitemap() {
return generateSitemap([
{ url: '/', priority: 1.0, changefreq: 'daily' },
{ url: '/about', priority: 0.8, changefreq: 'weekly' },
{ url: '/contact', priority: 0.6, changefreq: 'monthly' }
]);
}
`;
return {
'src/utils/seo.js': metaHelper,
dependencies: {
'@coherent.js/seo': cliRange
}
};
}
/**
* Generate @coherent.js/tooling/testing scaffolding
*/
export function generateTestingScaffolding() {
const testHelper = `
import { renderComponent } from '@coherent.js/tooling/testing';
import { describe, it, expect } from 'vitest';
/**
* Reusable smoke test for any component
*/
export function testComponent(Component, props = {}) {
describe(Component.name || 'Component', () => {
it('renders without errors', () => {
const { html } = renderComponent(Component(props));
expect(html).toBeTypeOf('string');
expect(html.length).toBeGreaterThan(0);
});
});
}
`;
const exampleTest = `
import { describe, it, expect } from 'vitest';
import { renderComponent } from '@coherent.js/tooling/testing';
import { HomePage } from '../../src/components/HomePage.js';
describe('HomePage', () => {
it('should render the home page', () => {
const { html } = renderComponent(HomePage({}));
expect(html).toContain('Welcome');
});
it('should render with custom props', () => {
const { html } = renderComponent(HomePage({ title: 'Custom Title' }));
expect(html).toContain('Custom Title');
});
});
`;
return {
'tests/helpers/testing.js': testHelper,
'tests/components/HomePage.test.js': exampleTest,
dependencies: {
'@coherent.js/tooling': cliRange
}
};
}
/**
* Get dependencies for a package
*/
export function getPackageDependencies(packageName) {
const scaffolding = {
api: generateApiScaffolding(),
client: generateClientScaffolding(),
i18n: generateI18nScaffolding(),
forms: generateFormsScaffolding(),
devtools: generateDevtoolsScaffolding(),
seo: generateSeoScaffolding(),
testing: generateTestingScaffolding()
};
return scaffolding[packageName]?.dependencies || {};
}
/**
* Generate scaffolding for selected packages
*/
export function generatePackageScaffolding(packages, options = {}) {
const { projectName = 'My App' } = options;
const files = {};
const dependencies = {};
packages.forEach(pkg => {
let scaffolding;
switch (pkg) {
case 'api':
scaffolding = generateApiScaffolding();
break;
case 'client':
scaffolding = generateClientScaffolding();
break;
case 'i18n':
scaffolding = generateI18nScaffolding();
break;
case 'forms':
scaffolding = generateFormsScaffolding();
break;
case 'devtools':
scaffolding = generateDevtoolsScaffolding();
break;
case 'seo':
scaffolding = generateSeoScaffolding(projectName);
break;
case 'testing':
scaffolding = generateTestingScaffolding();
break;
default:
return;
}
// Merge files and dependencies
Eif (scaffolding) {
Object.entries(scaffolding).forEach(([key, value]) => {
if (key === 'dependencies') {
Object.assign(dependencies, value);
} else {
files[key] = value;
}
});
}
});
return { files, dependencies };
}
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