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* Next.js integration for Coherent.js
* Provides utilities for using Coherent.js with Next.js
*/
import { renderToString } from '../rendering/html-renderer.js';
import { performanceMonitor } from '../performance/monitor.js';
import { importPeerDependency } from '../utils/dependency-utils.js';
/**
* Create a Next.js API route handler for Coherent.js components
*
* @param {Function} componentFactory - Function that returns a Coherent.js component
* @param {Object} options - Handler options
* @param {boolean} options.enablePerformanceMonitoring - Enable performance monitoring
* @param {string} options.template - HTML template with {{content}} placeholder
* @returns {Function} Next.js API route handler
*/
export function createCoherentNextHandler(componentFactory, options = {}) {
const {
enablePerformanceMonitoring = false,
template = '<!DOCTYPE html>\n{{content}}'
} = options;
return async (req, res) => {
try {
// Create component with request data
const component = await Promise.resolve(
componentFactory(req, res)
);
if (!component) {
res.status(500).json({ error: 'Component factory returned null/undefined' });
return;
}
// Render component
let html;
if (enablePerformanceMonitoring) {
const renderId = performanceMonitor.startRender();
html = renderToString(component);
performanceMonitor.endRender(renderId);
} else {
html = renderToString(component);
}
// Apply template
const finalHtml = template.replace('{{content}}', html);
// Send HTML response
res.setHeader('Content-Type', 'text/html; charset=utf-8');
res.status(200).send(finalHtml);
} catch (error) {
console.error('Coherent.js Next.js handler error:', error);
res.status(500).json({ error: error.message });
}
};
}
/**
* Create a Next.js App Router route handler for Coherent.js components
*
* @param {Function} componentFactory - Function that returns a Coherent.js component
* @param {Object} options - Handler options
* @returns {Function} Next.js App Router route handler
*/
export function createCoherentAppRouterHandler(componentFactory, options = {}) {
const {
enablePerformanceMonitoring = false,
template = '<!DOCTYPE html>\n{{content}}'
} = options;
return async function handler(request) {
try {
// Create component with request data
const component = await Promise.resolve(
componentFactory(request)
);
if (!component) {
return new Response(
JSON.stringify({ error: 'Component factory returned null/undefined' }),
{
status: 500,
headers: { 'Content-Type': 'application/json' }
}
);
}
// Render component
let html;
if (enablePerformanceMonitoring) {
const renderId = performanceMonitor.startRender();
html = renderToString(component);
performanceMonitor.endRender(renderId);
} else {
html = renderToString(component);
}
// Apply template
const finalHtml = template.replace('{{content}}', html);
// Send HTML response
return new Response(finalHtml, {
status: 200,
headers: { 'Content-Type': 'text/html; charset=utf-8' }
});
} catch (error) {
console.error('Coherent.js Next.js App Router handler error:', error);
return new Response(
JSON.stringify({ error: error.message }),
{
status: 500,
headers: { 'Content-Type': 'application/json' }
}
);
}
}
}
/**
* Create a Next.js Server Component for Coherent.js
*
* @param {Function} componentFactory - Function that returns a Coherent.js component
* @param {Object} options - Component options
* @returns {Function} Next.js Server Component
*/
export async function createCoherentServerComponent(componentFactory, options = {}) {
const {
enablePerformanceMonitoring = false
} = options;
// Import React using dependency utilities
let React;
try {
React = await importPeerDependency('react', 'React');
} catch (error) {
throw new Error(
`Next.js Server Component integration requires React. ${ error.message}`
);
}
return async function CoherentServerComponent(props) {
try {
// Create component with props
const component = await Promise.resolve(
componentFactory(props)
);
if (!component) {
return React.default.createElement('div', null, 'Error: Component factory returned null/undefined');
}
// Render component
let html;
if (enablePerformanceMonitoring) {
const renderId = performanceMonitor.startRender();
html = renderToString(component);
performanceMonitor.endRender(renderId);
} else {
html = renderToString(component);
}
// Return dangerouslySetInnerHTML to render HTML
return React.default.createElement('div', {
dangerouslySetInnerHTML: { __html: html }
});
} catch (error) {
console.error('Coherent.js Next.js Server Component error:', error);
return React.default.createElement('div', null, `Error: ${error.message}`);
}
};
}
/**
* Create a Next.js Client Component for Coherent.js with hydration support
*
* @param {Function} componentFactory - Function that returns a Coherent.js component
* @param {Object} options - Component options
* @returns {Function} Next.js Client Component
*/
export async function createCoherentClientComponent(componentFactory, options = {}) {
const {
enablePerformanceMonitoring = false
} = options;
// Import React using dependency utilities
let React;
try {
React = await importPeerDependency('react', 'React');
} catch (error) {
throw new Error(
`Next.js Client Component integration requires React. ${ error.message}`
);
}
return function CoherentClientComponent(props) {
const [html, setHtml] = React.useState('');
React.useEffect(() => {
async function renderComponent() {
try {
// Create component with props
const component = await Promise.resolve(
componentFactory(props)
);
if (!component) {
setHtml('Error: Component factory returned null/undefined');
return;
}
// Render component
let renderedHtml;
if (enablePerformanceMonitoring) {
const renderId = performanceMonitor.startRender();
renderedHtml = renderToString(component);
performanceMonitor.endRender(renderId);
} else {
renderedHtml = renderToString(component);
}
setHtml(renderedHtml);
} catch (error) {
console.error('Coherent.js Next.js Client Component error:', error);
setHtml(`Error: ${error.message}`);
}
}
renderComponent();
}, [props]);
return React.createElement('div', {
dangerouslySetInnerHTML: { __html: html }
});
};
}
/**
* Create Next.js integration with dependency checking
* This function ensures Next.js and React are available before setting up the integration
*
* @param {Object} options - Setup options
* @returns {Promise<Object>} - Object with Next.js integration utilities
*/
export async function createNextIntegration(options = {}) {
try {
// Verify Next.js and React are available
await importPeerDependency('next', 'Next.js');
await importPeerDependency('react', 'React');
return {
createCoherentNextHandler: (componentFactory, handlerOptions = {}) =>
createCoherentNextHandler(componentFactory, { ...options, ...handlerOptions }),
createCoherentAppRouterHandler: (componentFactory, handlerOptions = {}) =>
createCoherentAppRouterHandler(componentFactory, { ...options, ...handlerOptions }),
createCoherentServerComponent: (componentFactory, componentOptions = {}) =>
createCoherentServerComponent(componentFactory, { ...options, ...componentOptions }),
createCoherentClientComponent: (componentFactory, componentOptions = {}) =>
createCoherentClientComponent(componentFactory, { ...options, ...componentOptions })
};
} catch (error) {
throw error;
}
}
// Export all utilities
export default {
createCoherentNextHandler,
createCoherentAppRouterHandler,
createCoherentServerComponent,
createCoherentClientComponent,
createNextIntegration
};
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