feat(server) layout handling; placekeeper wip

examples/index.js

@@ -1,6 +1,7 @@
 import { LayServer } from '../src';
 import {resolve} from 'path';
 import Html from '../src/Views/Html';
+import Markdown from '../src/Views/Markdown';
 
 const APP_PORT = Bun.env.APP_PORT ?? Bun.env.PORT ?? 3000;
 
@@ -36,6 +37,7 @@ class InfoController {
 
 const server = new LayServer({
 	viewsPath: resolve(__dirname, 'views'),
+	layout: 'blank.html',
 	loaders: new Map([[
 		'html', new Html()
 	]]),
@@ -43,7 +45,7 @@ const server = new LayServer({
 		function Main(server) {
 			server.get('/', async (req, res) => {
 				return res.json({message: 'hello world'})
-			}, { domain: 'api.tipedi.local' });
+			}, { domain: 'example.layc.dev' });
 			server.all('/data', (req, res) => {
 				let respBody = `your ${req.method} request was well recieved`;
 				switch (req.method) {
@@ -86,6 +88,14 @@ server.get('/', async (req, res) => {
 	return res.render('index');
 });
 
+server.get('/blog/:slug', async (req, res) => {
+	return res.send('index.html', { layout: 'blank.html' });
+});
+
+server.use(async (req, res) => {
+	return res.send('batman');
+})
+
 server.listen(APP_PORT, () => {
 	console.log(`server listen on ${APP_PORT}`);
 });

src/IO/LayResponse.js

@@ -1,37 +1,96 @@
 import MimeTypeMap from './MimeTypeMap';
 
 export default class LayResponse {
-	routing = undefined;
+	#routing = undefined;
-	body;
+	#body = 'Not Implemented';
-	statusCode;
+	#file = undefined;
-	headerList = new Map();
+	#redirectUrl = undefined;
-	mimeType;
+	#statusCode = 502;
-	options = {
+	#headerList = new Map();
+	#mimeType = 'text/plain';
+	#options = {
 		disableFileCheck: false,
 	};
 
 	constructor(routing) {
-		this.routing = routing;
+		this.#routing = routing;
-		this.body = 'Not Implemented';
-		this.statusCode = 502;
-		this.headerList = new Map();
-		this.mimeType = 'text/plain';
 	}
 
-	async send(str) {
+	type(key) {
-		this.type('text');
+		if (!MimeTypeMap.has(key)) {
-		this.body = str;
+			if(this.#mimeType != 'text/plain') this.#mimeType = MimeTypeMap.get('text');
+			return;
+		}
+		this.mimeType = MimeTypeMap.get(key);
+	}
+
+	status(value = null) {
+		if (isNaN(value)) throw new TypeError('status has to be a number');
+		this.#statusCode = value || 502;
+	}
+
+	redirect(value = null, status = 302) {
+		if (value === null) {
+			return this.#redirectUrl;
+		}
+
+		this.#redirectUrl = value;
+		this.status(status);
+	}
+
+	headers() {
+		if (!this.#headerList.get('Content-Type')) {
+			this.#headerList.set('Content-Type', `${this.#mimeType}`);
+		}
+		return this.#headerList;
+	}
+
+	header(key, value) {
+		this.#headerList.set(key, value);
+	}
+
+	async build(options = {}) {
+		if (this.#redirectUrl) {
+			return Response.redirect(this.#redirectUrl, this.status());
+		}
+
+		if(this.#file) return new Response(this.#file);
+
+		if(['text/plain'].includes(this.#mimeType)) {
+			await this.handleLayout(this.#body, options);
+		}
+
+		return new Response(this.#body, {
+			status: this.status(),
+			headers: this.headers(),
+		});
+	}
+
+	async send() {
+		await this.text(...arguments);
+
+		if (typeof(arguments[0]) != 'string' || !arguments[0]) return;
+		if (this.#options.disableFileCheck) return;
 
-		if (this.options.disableFileCheck) return;
 		try {
-			const temp = Bun.file(str);
+			const temp = Bun.file(arguments[0]);
 
 			if (await temp.exists()) {
-				this.file = str;
+				this.#file = temp;
 			}
 		} catch (err) {}
 	}
 
+	async text() {
+		let [value, ...rest] = arguments;
+		if (typeof value != 'string') {
+			value = JSON.stringify(value);
+		}
+
+		this.type('text');
+		await this.handleLayout(value, ...rest);
+	}
+
 	json(data, options = {}) {
 		let { replacer, space } = options;
 		if (!Array.isArray(replacer) && typeof replacer != 'function') {
@@ -41,72 +100,30 @@ export default class LayResponse {
 			space = 0;
 		}
 		this.type('json');
-		this.body = JSON.stringify(data, replacer, space);
+		this.#body = JSON.stringify(data, replacer, space);
-	}
-
-	type(key) {
-		if (!MimeTypeMap.has(key)) {
-			this.mimeType = MimeTypeMap.get('text');
-			return;
-		}
-		this.mimeType = MimeTypeMap.get(key);
-	}
-
-	status(value = null) {
-		if (isNaN(value)) throw new Error('status has to be a number');
-		this.statusCode = value || 502;
-	}
-
-	text(value = null) {
-		if (typeof value != 'string') {
-			value = JSON.stringify(value);
-		}
-
-		this.type('text');
-		this.body = value;
-	}
-
-	json(value = null) {
-		this.text(value);
-		this.type('json');
-	}
-
-	redirect(value = null, status = 302) {
-		if (value === null) {
-			return this.redirectUrl;
-		}
-
-		this.redirectUrl = value;
-		this.status(status);
-	}
-
-	headers() {
-		if (!this.headerList.get('Content-Type')) {
-			this.headerList.set('Content-Type', `${this.mimeType}`);
-		}
-		return this.headerList;
-	}
-
-	header(key, value) {
-		this.headerList.set(key, value);
-	}
-
-	build(options = {}) {
-		if (this.redirectUrl) {
-			return Response.redirect(this.redirectUrl, this.status());
-		}
-		return new Response(this.body, {
-			status: this.status(),
-			headers: this.headers(),
-		});
 	}
 
 	async render(path, data = {}) {
-		const loader = await this.routing.getServer().load(path);
+		const loader = await this.#routing.getServer().load(path);
-		const content = await loader.parse(data, {
+		const content = await loader.parse(data);
-			status: this.status(),
+
-			headers: this.headers(),
-		});
 		return content;
 	}
+
+	async handleLayout(content, options = {}) {
+		this.#body = String(content);
+		if(!options.hasOwnProperty('layout') || typeof options.layout !== 'string') {
+			if(this.#routing.getServer().hasLayout()) {
+				options.layout = this.#routing.getServer().getLayout();
+			}
+		}
+
+		if(!options.layout) return
+
+		const layout = await this.#routing.getServer().load(options.layout);
+		if(layout) {
+			this.#body = await layout.parse({ ...(options?.data || {}), content: String(content) },  options);
+			this.#mimeType = layout.mimeType;
+		}
+	}
 }

src/LayServer.js

@@ -14,12 +14,13 @@ import Logger from './Utils/Logger';
  * @class
  */
 export default class LayServer extends BaseRouter {
-	controllers = new Map();
+	#controllers = new Map();
-	loaders = new Map();
+	#loaders = new Map();
-	proc = null;
+	#proc = null;
-	publicFiles;
+	#publicFiles;
-	routing = null;
+	#routing = null;
-	options = new Map([
+	#options = new Map([
+		['layout',  undefined],
 		['loaders', undefined],
 		['publicDir', undefined],
 		['viewsPath', undefined],
@@ -40,15 +41,15 @@ export default class LayServer extends BaseRouter {
 			const optionKeys = Object.getOwnPropertyNames(options);
 
 			for (const key of optionKeys) {
-				if (!this.options.has(key)) continue;
+				if (!this.#options.has(key)) continue;
 				if (key == 'loaders') continue;
-				const valueType = typeof this.options.get(key);
+				const valueType = typeof this.#options.get(key);
 				if (
 					typeof options[key] !== 'undefined' &&
 					(typeof options[key] == valueType ||
 						valueType == 'undefined')
 				)
-					this.options.set(key, options[key]);
+					this.#options.set(key, options[key]);
 			}
 
 			if (options.hasOwnProperty('loaders')) {
@@ -58,10 +59,10 @@ export default class LayServer extends BaseRouter {
 			}
 		}
 
-		this.routing = new LayRouting(this);
+		this.#routing = new LayRouting(this);
 
 		if(options.router) {
-			this.routing.addRouter(options.router);
+			this.#routing.addRouter(options.router);
 		}
 
 		if (options.hasOwnProperty('controllers')) {
@@ -72,13 +73,13 @@ export default class LayServer extends BaseRouter {
 
 		if (
 			!options.publicFiles &&
-			this.options.discoverPublicFiles &&
+			this.#options.discoverPublicFiles &&
-			this.options.publicDir
+			this.#options.publicDir
 		)
-			this.indexPublicFiles(this.options.publicDir);
+			this.indexPublicFiles(this.#options.publicDir);
 
-		if (!this.options.viewsEngine && this.options.viewsPath) {
+		if (!this.#options.viewsEngine && this.#options.viewsPath) {
-			this.options.viewsEngine = new HtmlEngine();
+			this.#options.viewsEngine = new HtmlEngine();
 		}
 	}
 
@@ -89,9 +90,9 @@ export default class LayServer extends BaseRouter {
 	 * @returns {*} - The current value of the option, or undefined if the option does not exist.
 	 */
 	option(key, value = undefined) {
-		if (!this.options.has(key)) return undefined;
+		if (!this.#options.has(key)) return undefined;
 		if (value !== undefined) this.option.set(key, value);
-		return this.options.get(key);
+		return this.#options.get(key);
 	}
 
 	/**
@@ -105,11 +106,11 @@ export default class LayServer extends BaseRouter {
 			throw new Error(
 				'publicFiles option has to be an array or undefined'
 			);
-		if (!this.publicFiles || !Array.isArray(this.publicFiles))
+		if (!this.#publicFiles || !Array.isArray(this.#publicFiles))
-			this.publicFiles = [];
+			this.#publicFiles = [];
 		for (let path of filePaths) {
 			if (typeof path != 'string') continue;
-			this.publicFiles.push(path);
+			this.#publicFiles.push(path);
 		}
 	}
 
@@ -139,11 +140,11 @@ export default class LayServer extends BaseRouter {
 
 			// if the given controller is just an anonymous function defining the routes itself
 			if (!controller?.prototype?.constructor?.name) {
-				controller(this.routing);
+				controller(this.#routing);
 				continue;
 			}
 
-			this.controllers.set(
+			this.#controllers.set(
 				controller?.name,
 				this.instantiateController(controller)
 			);
@@ -156,9 +157,9 @@ export default class LayServer extends BaseRouter {
 	 * @returns {Object} - The instantiated controller.
 	 */
 	instantiateController(controller) {
-		this.routing.setNamespace(controller.namespace);
+		this.#routing.setNamespace(controller.namespace);
-		const _temp = new controller(this.routing);
+		const _temp = new controller(this.#routing);
-		if (controller.namespace) this.routing.setNamespace(null);
+		if (controller.namespace) this.#routing.setNamespace(null);
 		return _temp;
 	}
 
@@ -181,10 +182,10 @@ export default class LayServer extends BaseRouter {
 
 		if (
 			!url.pathname.endsWith('/') &&
-			Array.isArray(this.publicFiles) &&
+			Array.isArray(this.#publicFiles) &&
-			this.publicFiles.length > 0
+			this.#publicFiles.length > 0
 		) {
-			let path = this.publicFiles.find(
+			let path = this.#publicFiles.find(
 				(v) => url.pathname.substring(1) === v
 			);
 			if (path) {
@@ -192,7 +193,7 @@ export default class LayServer extends BaseRouter {
 					return new Response(
 						Bun.file(
 							resolvePath(
-								this.options.get('publicDir') ??
+								this.#options.get('publicDir') ??
 									`${import.meta.dir}/public`,
 								path
 							)
@@ -207,11 +208,11 @@ export default class LayServer extends BaseRouter {
 			}
 		}
 
-		if (this.options.enforceTrailingSlash && !url.pathname.endsWith('/')) {
+		if (this.#options.enforceTrailingSlash && !url.pathname.endsWith('/')) {
 			return Response.redirect(`${url.toString()}/`, 302);
 		}
 
-		let resp = await this.routing.handle(req);
+		let resp = await this.#routing.handle(req);
 		if (resp instanceof Response) return resp;
 		return new Response('Not Found', { status: 404 });
 	}
@@ -254,7 +255,7 @@ export default class LayServer extends BaseRouter {
 	 * @returns {Promise<string|null>} - The path of the view file, or null if not found.
 	 */
 	async getViewPath(filepath) {
-		let path = this.options.get('viewsPath');
+		let path = this.#options.get('viewsPath');
 		if (!path.endsWith('/')) path += '/';
 
 		const filename = filepath.split('/').pop().toString();
@@ -290,7 +291,7 @@ export default class LayServer extends BaseRouter {
 		const fullFilePath = await this.getViewPath(filepath);
 		if (!fullFilePath) return new DefaultLoader(filepath);
 		const filename = fullFilePath.split('/').pop().toString();
-		const ext = filename.substring(filename.indexOf('.') + 1);
+		const ext = filename.substring(filename.lastIndexOf('.') + 1);
 
 		if (this.loaders.size > 0) {
 			for (const keys of this.loaders.keys()) {
@@ -302,7 +303,21 @@ export default class LayServer extends BaseRouter {
 		return new DefaultLoader(filepath);
 	}
 
-	async add(path, cb) {
+	add(path, cb) {
-		this.routing.add(...arguments)
+		this.#routing.add(...arguments)
+	}
+
+	use (cb) {
+		this.add('*', cb, arguments[1]);
+	}
+
+	hasLayout() {
+		return typeof(this.#options.get('layout')) == 'string' && this.#options.get('layout').length > 0;
+	}
+
+	getLayout() {
+		if(!this.#options.has('layout')) return undefined;
+
+		return this.#options.get('layout');
 	}
 }

src/Routing/LayRouting.js

@@ -97,4 +97,8 @@ export default class LayRouting extends BaseRouter {
 			this.routers.get(options.domain).add (path, cb, options);
 		}
 	}
+
+	use (cb) {
+		this.add('*', cb, arguments[1]);
+	}
 }

src/Routing/Router.js

@@ -33,12 +33,16 @@ export default class Router extends BaseRouter {
 		if (path.endsWith('/')) path = path.substring(0, path.length - 1);
 
 		let currentNode = this.routes;
+		let fallbackNode = currentNode.has('*') ? currentNode.get('*') : undefined;
 		let paramsList = [];
 
 		if (path != '') {
 			let segments = path.split('/');
 			for (let index = 0; index < segments.length; index++) {
 				const segment = segments[index];
+				if (currentNode.has('*')) {
+					fallbackNode = currentNode.get('*');
+				}
 
 				if (currentNode.has(segment)) {
 					currentNode = currentNode.get(segment);
@@ -51,7 +55,7 @@ export default class Router extends BaseRouter {
 					continue;
 				}
 
-				currentNode = null;
+				currentNode = fallbackNode ?? null;
 				break;
 			}
 		}
@@ -98,21 +102,24 @@ export default class Router extends BaseRouter {
 
 		try {
 			await reqContext.request.parseBody();
-			const retVal = await handle.callback(
+			let retVal = await handle.callback(
 				reqContext.request,
 				reqContext.response
 			);
 			if (typeof retVal != 'undefined') {
-				if (retVal instanceof Response) {
+				if (retVal instanceof Promise) {
+					retVal = await retVal;
+				} else if (retVal instanceof Response) {
 					return retVal;
 				} else if (typeof retVal == 'string') {
-					reqContext.response.send(retVal);
+					await reqContext.response.text(retVal);
 				} else {
 					reqContext.response.json(retVal);
 				}
 			}
 		} catch (err) {
 			Logger(err);
+			console.log(err);
 			return new Response('Error', { status: 500 });
 		}
 
@@ -123,10 +130,7 @@ export default class Router extends BaseRouter {
 			);
 		}
 
-		return new Response(reqContext.response.body, {
+		return await reqContext.response.build();
-			status: reqContext.response.status() || 200,
-			headers: reqContext.response.headers() || {},
-		});
 	}
 
 	add(route, callback) {

src/Utils/Placekeeper.js

@@ -1,51 +1,16 @@
 import Logger from './Logger';
 
+const TOKEN_PAIRS = [
+	['{{','}}']
+]
+
 export default class Placekeeper {
 	static init(content) {
 		const sections = Array();
 		const variables = new Map();
 		const currentSection = new Map();
 
-		for (let idx = 0; idx < content.length; idx++) {
+		console.log('content to array', Placekeeper.contentToArray(content));
-			const char = content[idx];
-			if (char == '{') {
-				if (content[idx + 1] == '{') {
-					if (currentSection.has('start')) currentSection.clear(); // everything before this was not a section then
-					// begins a new section meant to be for a variable but still can be an operational section
-					// @example: {{#if variableName}} {{#for variableName}} {{#while variableName}}
-					currentSection.set('start', idx);
-				}
-			} else if (currentSection.has('start')) {
-				if (char == '}') {
-					if (content[idx + 1] == '}') {
-						// ends a section
-						currentSection.set('end', idx + 2);
-						currentSection.set(
-							'content',
-							content
-								.substring(
-									currentSection.get('start'),
-									currentSection.get('end')
-								)
-								.toString()
-								.trim()
-						);
-
-						currentSection.set(
-							'variables',
-							Placekeeper.parseVariables(
-								currentSection.get('content')
-							)
-						);
-						sections.push(new Map(currentSection));
-						currentSection.clear();
-						idx++;
-					}
-				}
-			}
-		}
-
-		Logger('content to array', Placekeeper.contentToArray(content));
 
 		return {
 			variables,
@@ -53,37 +18,47 @@ export default class Placekeeper {
 		};
 	}
 
-	static contentToArray(content) {
+	static walkToEnd(content, endToken = undefined) {
-		const parts = content.split(/\{\{([^}]+)\}\}|\{(#[a-zA-Z]+)\s*([^}]+)\}/);
+		let result = {
-		const result = [];
+			stack: [],
-		let stack = [];
+			length: 0
-		function processStack() {
+		};
-			const block = stack.pop();
+		for(let idx = 0; idx < content.length; idx++) {
-			result.push(new Function('data', 'with(data){return `'+ block.content.join('') + '`;}'));
+			const char = content[idx];
-		}
+			const token = TOKEN_PAIRS.find((t) => {
+				if(!t[0].startsWith(char)) return false;
+				return content.substring(idx, idx + t[0].length) == t[0];
+			});
 
-		// Process each part of the split content
+			if(token) {
-		for (let i = 0; i < parts.length; i++) {
+				// found new start token walk to end:
-			if (parts[i] === '#' && ['for', 'if', 'else', 'elseif', 'while'].includes(parts[i + 1])) {
+				idx += token[0].length
-				// Start of control structure
+				const subset = Placekeeper.walkToEnd(content.substring(idx), token[1]);
-				stack.push({ type: parts[i + 1], content: [] });
-				i += 2; // Skip the control structure identifier
-			} else if (parts[i] === '/#' && ['for', 'if', 'while'].includes(stack[stack.length - 1].type)) {
-				// End of control structure
-				i++;
-				processStack();
-			} else if (stack.length > 0) {
-				// Inside a control structure
-				stack[stack.length - 1].content.push(parts[i]);
-			} else if (parts[i] !== undefined && parts[i] !== '#end') {
-				// Directly executable expression or static string
-				result.push(parts[i].startsWith('\n') ? '\n' + parts[i].trimStart() : parts[i].trimEnd());
-			}
-		}
 
+				// is  a subset convertable to a function?
+				// can't we convert the whole tree to one function so its only one call instead of iteration on runtime?
+
+				result.stack.push(subset.stack);
+				result.length += subset.length;
+				idx += subset.length + token[1].length - 1;
+			} else {
+				if(endToken && endToken.startsWith(char) && content.substring(idx, idx + endToken.length)) {
+					// found end token
 					return result;
 				}
 
+				if(result.stack.length == 0 || Array.isArray(result.stack[result.stack.length - 1])) result.stack.push('');
+				result.stack[result.stack.length - 1] += char;
+				result.length += char.length;
+			}
+		}
+		return result;
+	}
+
+	static contentToArray(content) {
+		return Placekeeper.walkToEnd(content);
+	}
+
 	static variableRegex = new RegExp(/[\w\d]/, 'i');
 
 	static parseVariables(content) {
@@ -109,6 +84,8 @@ export default class Placekeeper {
 				currentVar = null;
 			}
 		}
+
+		return variables;
 	}
 
 	static parse(content, sections) {

src/Views/Html.js

@@ -29,6 +29,7 @@ export default class HtmlEngine {
 		});
 
 		return {
+			mimeType: file.type || 'text/html',
 			parse: (data = null, options = {}) =>
 				this.parse(filepath, data, options),
 		};
@@ -50,17 +51,11 @@ export default class HtmlEngine {
 		let parsed = Placekeeper.parse(view.content, view.sections);
 		for (const [key, value] of Object.entries(data)) {
 			parsed = parsed.replace(
-				new RegExp(`{{${key}}}`, 'g'),
+				new RegExp(`{{\s?${key}\s?}}`, 'g'),
 				value.toString()
 			);
 		}
-		return new Response(parsed, {
+
-			...(options || {}),
+		return parsed;
-			headers: {
-				...(options.headers || {}),
-				'Content-Type': view.mimeType,
-				'Content-Length': view.size,
-			},
-		});
 	}
 }

src/Views/Markdown.js

@@ -34,7 +34,7 @@ export default class MarkdownEngine {
 				['sections', sections],
 				['variables', variables],
 				['metadata', metadata],
-				['mimeType', file.type || 'text/html'],
+				['mimeType', file.type || 'text/markdown'],
 				['size', file.size],
 			])
 		);
@@ -42,6 +42,7 @@ export default class MarkdownEngine {
 		console.log(filepath, this.#internalCache.get(filepath));
 
 		return {
+			mimeType: file.type || 'text/markdown',
 			parse: (data = null, options = {}) =>
 				this.parse(filepath, data, options),
 		};