Added doctype to all HTML templates

- Added "ViewMode"

Dockerfile

@@ -0,0 +1,19 @@
+FROM node:19.4.0-slim as node
+
+WORKDIR /app/
+
+COPY ./package.json .
+COPY ./package-lock.json .
+COPY ./inc ./inc
+COPY ./layouts ./layouts
+COPY ./platforms ./platforms
+COPY ./routes ./routes
+COPY ./env.js .
+COPY ./helpers.js .
+COPY ./rollup.config.js .
+COPY ./server.js .
+
+RUN npm install
+
+EXPOSE 3010
+CMD npm run view-mode

helpers.js

@@ -14,6 +14,7 @@ import {constants} from "fs";
 import fetch from "node-fetch";
 import mime from "mime-types";
 import {exec} from "child_process";
+import {REGISTRY_URL} from "@axe-web/create-block/env.js";
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
@@ -61,14 +62,16 @@ export async function getBlockData(jsonFileName = 'default', {projectPath} = {js
   return data;
 }
 
-export function getBlockConfigs(args = {modulesPath: '', dataFiles: []}) {
-  const updatedConfig = Object.assign(JSON.parse(JSON.stringify(config)), // The entire config object.
+export async function getBlockConfigs(args) {
+  const config = await readJSONFile(path.join('blocks', '@' + args.project, args.name, 'config', 'default.json'));
+
+  const updatedConfig = Object.assign({}, config, // The entire config object.
     {
-      projectDir: args.modulesPath, dataFiles: args.dataFiles.map((name) => {
+      projectDir: '', dataFiles: args.dataFiles.map((name) => {
         return {
           name,
         };
-      }), remToPx: config.has('remToPx') ? config.get('remToPx') : 16,
+      }), remToPx: 16,
     });
 
   // Avoid cache conflict on Global Project css/js files.
@@ -81,13 +84,13 @@ export function getBlockConfigs(args = {modulesPath: '', dataFiles: []}) {
 }
 
 export function getBlockName(name = '') {
-  if (name.startsWith('@')) {
-    name = name.substring(1);
-  }
+  // Remove all @ from the beginning of the string.
+  name = name.replace(/^@/, '');
 
   const arr = name.split('/');
 
   return {
+    blockName: `@${arr[0]}/${arr[1]}`,
     project: arr[0],
     name: arr[1],
   };
@@ -275,7 +278,7 @@ export async function getBlockFromCloud(blockName, blocksRegistry) {
   const response = await fetch(`${blocksRegistry}?${queryString.toString()}`);
   const responseData = await response.json();
   if (!responseData || !responseData.name) {
-    const message = "⚠️ Block not found, please contact administrator."
+    const message = `⚠️ Block not found, please contact administrator. [${blockName}]`
     throw new Error(message);
   }
 
@@ -287,12 +290,15 @@ export async function getBlockFromCloud(blockName, blocksRegistry) {
   return responseData;
 }
 
-export async function verifyVersion(projectPath, blocksRegistry) {
-  const blockJson = await readJSONFile(path.join(projectPath, `block.json`));
-  const blockName = getBlockName(blockJson.name);
+export async function verifyVersion(blockName, projectPath, blocksRegistry) {
+  const block = await getBlockFromCloud(blockName, blocksRegistry);
+  if (!block) {
+    throw new Error(`Block not found. [${blockName}]`);
+  }
 
-  if (typeof blockJson.version === 'undefined' || !blockName.name) {
-    return true;
+  const blockJson = await readJSONFile(path.join(projectPath, `block.json`));
+  if (blockJson.error) {
+    return false; // Block doesn't exist locally.
   }
 
   /*
@@ -300,25 +306,28 @@ export async function verifyVersion(projectPath, blocksRegistry) {
    * Let's detect the latest version.
    */
 
-  const block = await getBlockFromCloud('@' + blockJson.name, blocksRegistry);
   return block.version === blockJson.version;
 }
 
-export async function syncFilesWithCloud(jsonBlockPath, bs, sourceFiles = false) {
-  const blockJson = await readJSONFile(jsonBlockPath);
-  const blockName = blockJson.name.startsWith('@') ? blockJson.name : `@${blockJson.name}`;
+export async function syncFilesWithCloud(blockName, bs, sourceFiles = false) {
+  const block = await getBlockFromCloud(blockName, REGISTRY_URL);
 
-  bs.pause();
+  let fileExists = false;
+  try {
+    await readJSONFile(path.join('blocks', '@' + block.project, block.name, 'block.json'));
+    fileExists = true;
+  } catch (e) {
+    // Dir doesn't exist.
+  }
 
-  // Looks like it takes time to pause the browser-sync server, so delay(setTimeout) is necessary.
-  await new Promise((resolve) => setTimeout(() => resolve(), 1000));
+  // TODO: Pause watcher of the block?
+  blockName = `@${block.project}/${block.name}`;
 
   await new Promise((resolve) => {
-    const args = sourceFiles ? '--source' : '';
     const createBlockModulePath = `./node_modules/@axe-web/create-block`;
+    const action = sourceFiles ? fileExists ? 'sync --source' : 'pull' : 'sync';
 
-    // exec(`BLOCK_NAME=${blockName} node ${createBlockModulePath}/create-block.js sync ${args}`, (err, stdout, stderr) => {
-    exec(`node ${createBlockModulePath}/create-block.js sync ${args}`, (err, stdout, stderr) => {
+    exec(`BLOCK_NAME=${blockName} node ${createBlockModulePath}/create-block.js ${action}`, (err, stdout, stderr) => {
       if (err || stderr) {
         const message = err || stderr;
         console.error('Error:', message);
@@ -330,5 +339,54 @@ export async function syncFilesWithCloud(jsonBlockPath, bs, sourceFiles = false)
     });
   });
 
-  bs.resume();
+  // TODO: Release watcher of the block?
+}
+
+export async function getBlockVariations(projectPath) {
+  const dataFiles = [];
+
+  try {
+    await fs.access(path.join(projectPath, 'data'));
+
+    const files = prepareListOfDataFiles(await fs.readdir(path.join(projectPath, 'data')));
+    dataFiles.push(...files);
+  } catch (e) {
+    console.log('Warning: data folder not found.', projectPath);
+  }
+
+  return dataFiles;
+}
+
+export function prepareListOfDataFiles(dataFiles) {
+  return dataFiles
+    .filter((fileName) => fileName.split('.').pop() === 'json')
+    .map((fileName) => {
+      const splitName = fileName.split('.');
+      splitName.pop();
+      return splitName.join('');
+    })
+    .sort();
+}
+
+export function handlebarLayoutsPath() {
+  return path.join(...arguments)
+    .replace(/\\/g, '/'); // Windows path issue. Fix all "\" for Handlebars.
+}
+
+export function getListOfDesignPreviewFiles(jsonDataFileName, previewFiles, block) {
+  return previewFiles
+    .filter(fileName => {
+      return fileName.startsWith(jsonDataFileName + '.');
+    })
+    .map(fileName => {
+      const fileData = fileName.split('.');
+      const fileFormat = fileData.pop();
+      const previewSize = fileData.pop();
+
+      return {
+        dataSource: jsonDataFileName,
+        widthDimension: Number.parseInt(previewSize, 10),
+        url: `/design/${block.project}/${block.name}/preview/${fileName}`,
+      };
+    });
 }

inc/changes-watcher.js

@@ -0,0 +1,109 @@
+import gulp from "gulp";
+import path from "path";
+import sourcemaps from "gulp-sourcemaps";
+import babel from "gulp-babel";
+import PluginError from "plugin-error";
+import rename from "gulp-rename";
+import uglify from "gulp-uglify";
+import dartSass from 'sass';
+import gulpSass from "gulp-sass";
+import {getBlockName} from "../helpers.js";
+
+const sass = gulpSass(dartSass);
+
+export function setupWatcher(viewSync) {
+
+  const watchSCSS = gulp.watch(['blocks/**/*.scss'], {delay: 400});
+  watchSCSS.on('change', async function (filepath, stats) {
+    const pathArray = filepath.split('/', 3);
+    pathArray.shift();
+    const block = getBlockName(pathArray.join('/'));
+
+    buildStyleFiles(path.join('blocks', '@' + block.project, block.name), () => {
+      viewSync.syncTemplate(block.blockName, 'styleUpdate');
+    })
+  });
+
+  const watchJS = gulp.watch(['blocks/**/*.js', '!blocks/**/*.min.js'], {delay: 400});
+  watchJS.on('change', async function (filepath) {
+    const pathArray = filepath.split('/', 3);
+    pathArray.shift();
+    const block = getBlockName(pathArray.join('/'));
+
+    buildScriptFiles(path.join('blocks', '@' + block.project, block.name), () => {
+      viewSync.syncTemplate(block.blockName, 'scriptUpdate');
+    })
+  });
+
+  const watchHBS = gulp.watch(['blocks/**/*.hbs'], {delay: 400});
+  watchHBS.on('change', async function (filepath) {
+    const pathArray = filepath.split('/', 3);
+    pathArray.shift();
+    const block = getBlockName(pathArray.join('/'));
+
+    await viewSync.syncTemplate(block.blockName);
+  });
+
+}
+
+export function buildAssetFiles(projectPath) {
+  // Register tasks.
+  gulp.task('build-script-files', (done) => buildScriptFiles(projectPath, done));
+  gulp.task('build-styling-files', (done) => buildStyleFiles(projectPath, done));
+
+  // Run first build.
+  return new Promise((resolve) => {
+    gulp.series('build-script-files', 'build-styling-files', function () {
+      resolve();
+    })();
+  });
+}
+
+function showError(errorMessage) {
+  console.log(errorMessage);
+
+  // TODO: Send this message to browser.
+  // So the developer can understand there is an error.
+}
+
+function buildScriptFiles(projectPath = '', done) {
+  const files = getJSBundleFiles(projectPath);
+  const stream = gulp.src(files, {base: path.posix.join(projectPath, 'src')})
+    .pipe(sourcemaps.init({}))
+    .pipe(babel()).on('error', function (error) {
+      showError(new PluginError('JavaScript', error).toString());
+      done();
+    })
+    .pipe(gulp.src(path.join(projectPath, 'vendor/*.js')))
+    // .pipe(gulp.dest('src/'))
+    .pipe(rename({extname: '.min.js'}))
+    .pipe(uglify())
+    .pipe(sourcemaps.write('.'))
+    .pipe(gulp.dest(path.posix.join(projectPath, 'src')));
+
+  stream.on('end', done);
+
+  return stream;
+}
+
+function getJSBundleFiles(projectPath = '') {
+  return [path.posix.join(projectPath, "src/**/*.js"), path.posix.join(projectPath, "src/**/*.mjs"), "!" + path.posix.join(projectPath, "src/**/*.min.js")];
+}
+
+function buildStyleFiles(projectPath = '', done) {
+  const stream = gulp.src(path.join(projectPath, 'src/**/*.scss'), {base: path.posix.join(projectPath, 'src')})
+    .pipe(sourcemaps.init({}))
+    .pipe(sass.sync({outputStyle: 'compressed'}).on('error', function (error) {
+      showError(new PluginError('SCSS', error.messageFormatted).toString());
+      // sass.logError(error);
+      done();
+    }))
+    // .pipe(gulp.dest('src/'))
+    .pipe(rename({extname: '.min.css'}))
+    .pipe(sourcemaps.write('.', {}))
+    .pipe(gulp.dest(path.posix.join(projectPath, 'src')));
+
+  stream.on('end', done);
+
+  return stream;
+}

inc/headers-middleware.js

@@ -0,0 +1,4 @@
+export function setHeaders(req, res, next) {
+  res.setHeader('Access-Control-Allow-Origin', '*');
+  next();
+}

inc/server.js

@@ -0,0 +1,53 @@
+import express from "express";
+import bodyParser from "body-parser";
+import {createServer} from "http";
+import {create} from "express-handlebars";
+import {escape} from "lodash-es";
+import {sanitizeUrl} from "@braintree/sanitize-url";
+import path from "path";
+
+export function init() {
+  const app = express();
+
+  // parse application/x-www-form-urlencoded
+  app.use(bodyParser.urlencoded({extended: false}));
+
+  // parse application/json
+  app.use(bodyParser.json());
+
+  const hbs = getHandlebarsViewEngine();
+
+  app.engine('.hbs', hbs.engine);
+  app.set('view engine', '.hbs');
+
+  const modulesPath = '.';
+  app.set('views', path.join(modulesPath, 'layouts'));
+
+  // Static Files of blockDevTool.
+  app.use(express.static(path.join(modulesPath, 'layouts')));
+
+  return {
+    expressApp: app,
+    httpServer: createServer(app),
+  };
+}
+
+function getHandlebarsViewEngine() {
+  return create({
+    extname: '.hbs', defaultLayout: false, partialsDir: ['.'], helpers: handlebarsHelpers()
+  });
+}
+
+function handlebarsHelpers() {
+  return {
+    esc_attr(attr) {
+      return escape(attr);
+    },
+    esc_url(url) {
+      return sanitizeUrl(url);
+    },
+    esc_html(html) {
+      return html;
+    },
+  };
+}

inc/view-sync.js

@@ -0,0 +1,50 @@
+import {Server} from "socket.io";
+import fs from "fs/promises";
+import {getBlockName, handlebarLayoutsPath} from "../helpers.js";
+import path from "path";
+
+export class ViewSync {
+  constructor(httpServer) {
+    this.sessions = {};
+    this.init(httpServer);
+  }
+
+  addSession(session, blockName) {
+    if (!this.sessions[blockName]) {
+      this.sessions[blockName] = [];
+    }
+
+    this.sessions[blockName].push(session);
+  }
+
+  init(httpServer) {
+    const io = new Server(httpServer);
+    io.on('connection', async (socket) => {
+      const blockName = socket.handshake.query.block;
+
+      if (!blockName) {
+        return;
+      }
+
+      this.addSession(socket, blockName);
+      await this.syncTemplate(blockName);
+    });
+
+    // return httpServer;
+  }
+
+  async syncTemplate(blockName, updateType = 'templateUpdate') {
+    const block = getBlockName(blockName);
+
+    const projectPath = path.join('blocks', '@' + block.project, block.name);
+    const hbsTemplate = await fs.readFile(handlebarLayoutsPath(projectPath, 'src', `${block.name}.template.hbs`), 'utf8');
+
+    if (!this.sessions[blockName]) {
+      return;
+    }
+
+    this.sessions[blockName].forEach(session => {
+      session.emit(updateType, {block: blockName, template: hbsTemplate});
+    });
+  }
+}

layouts/alignfull.hbs

@@ -1,3 +1,4 @@
+<!doctype html>
 <html lang="en">
 
 {{> (include_partial "layouts/partials/head") }}

layouts/container.hbs

@@ -1,3 +1,4 @@
+<!doctype html>
 <html lang="en">
 
 {{> (include_partial "layouts/partials/head") }}

layouts/error.hbs

@@ -1,3 +1,4 @@
+<!doctype html>
 <html lang="en">
 
 {{> (include_partial "layouts/partials/head") }}

layouts/index.hbs

@@ -1,3 +1,4 @@
+<!doctype html>
 <html lang="en">
 
 <head>
@@ -7,12 +8,13 @@
   <title>Block Development Tool</title>
 </head>
 
-<body>
+<body class="{{#if viewMode }}view-mode{{/if}}">
 
 {{> (include_partial "layouts/partials/toolbar") }}
 
 <script>
   window.devTool = {
+    blockName: '{{ blockName }}',
     previewFrameUrl: '{{ previewFrameUrl }}',
     {{#if publicUrl}}
       publicUrl: true,
@@ -21,7 +23,7 @@
 </script>
 
 <div class="preview">
-  <iframe id="preview_frame" src="{{ previewFrameUrl }}?iframe=true" class="breakpoint"></iframe>
+  <iframe id="preview_frame" src="{{ previewFrameUrl }}?iframe=true&block={{blockName}}" class="breakpoint"></iframe>
 </div>
 
 <script src="/scripts/dist/index.min.js"></script>

layouts/partials/head.hbs

@@ -10,5 +10,5 @@
   <link rel="stylesheet" href="{{ this }}">
   {{/each}}
   {{/if}}<link rel="stylesheet" href="/styles/page--view.css">{{# if config.blockName}}
-  <link rel="stylesheet" href="/styles/{{ config.blockName }}.min.css">{{/if}}
+  <link rel="stylesheet" id="block-stylesheet" href="{{staticFilesPath}}/styles/{{ config.blockName }}.min.css?v=1">{{/if}}
 </head>

layouts/partials/scripts.hbs

@@ -10,5 +10,5 @@
 {{/each}}
 {{/if}}
 {{#if config.blockName }}
-<script src="/scripts/{{ config.blockName }}.min.js"></script>
+<script id="block-script" src="{{staticFilesPath}}/scripts/{{ config.blockName }}.min.js?v=1"></script>
 {{/if}}

layouts/partials/toolbar.hbs

@@ -15,6 +15,6 @@
     {{#if styleGuideUrl}}
       <a href="{{ styleGuideUrl }}" target="_blank" class="palette" title="Open Style Guide"></a>
     {{/if}}
-    <a href="{{ previewFrameUrl }}" target="_blank" class="open_in_new_tab" title="Open in New Window"></a>
+    <a href="{{ previewFrameUrl }}?block={{blockName}}" target="_blank" class="open_in_new_tab" title="Open in New Window"></a>
   </div>
 </header>

layouts/scripts/dist/frame-index.min.js

@@ -1 +1 @@
-let e;window.initBlock=function(e="",n="",r){t=function(){document.querySelectorAll(n).forEach((e=>r(e)))},t()};let t,n={};function r(r={}){r.template&&(e=r.template),r.data&&(n=r.data),e&&function(e,n,r){const a=Handlebars.compile(e);let o;Handlebars.registerHelper("esc_attr",(function(e){return e})),Handlebars.registerHelper("esc_url",(function(e){return e})),Handlebars.registerHelper("esc_html",(function(e){return e})),Handlebars.registerHelper("base_url",(function(){return"/"}));try{o=a(n)}catch(e){o=`<div style="max-width: 1280px; margin: 1rem auto;">\n      <h1 style="all: unset; font-size: 1.5rem; font-weight: bold; display: block;">Syntax Error:</h1>\n      <pre style="all: unset; padding: 10px 15px; background-color: #ffe6e6; border: 1px solid red; border-radius: 0.25rem; overflow: auto; display: block; white-space: pre;">${e.toString()}</pre>\n    </div>`}r.innerHTML=o,t&&t()}(e,n||{},document.getElementById("hbs-container"))}!function(){function e(){const e=new URLSearchParams(window.location.search),t={};for(const[n,r]of e)t[n]=r;return t}!function(){const t=new URLSearchParams({name:e().data||"default"});fetch(`/data?${t}`).then((e=>e.json())).then((e=>{n=e.data,r({data:n})}))}(),window.addEventListener("message",(function(e){const t=e.data,a="dataUpdate:";if("string"==typeof t&&t.startsWith(a))try{n=JSON.parse(t.substring(a.length)),r({data:n})}catch(e){console.log("Error parsing incoming data.",e)}}))}(),function(){const e=window.io.connect();e.on("error",(function(e){console.log(e)})),e.on("templateUpdate",(function(e){r({template:e.template})}))}();
+let e;window.initBlock=function(e="",n="",o){t=function(){document.querySelectorAll(n).forEach((e=>o(e)))},t()};let t,n={};!function(){const o=r().block;function r(){const e=new URLSearchParams(window.location.search),t={};for(const[n,o]of e)t[n]=o;return t}function a(e){const t=document.getElementById(e),n=t.parentNode;let o,r;return"SCRIPT"===t.tagName?(o=document.createElement("script"),o.type="text/javascript",r="src"):"LINK"===t.tagName&&(o=document.createElement("link"),o.rel="stylesheet",r="href"),o.id=e,o[r]=t[r].replace(/(\?v=)[^&]+/,`$1${Date.now()}`),t.remove(),n.append(o),o}function c(r={}){r.template&&(e=r.template),r.data&&(n=r.data),e&&function(e,n,r){const a=Handlebars.compile(e);let c;Handlebars.registerHelper("esc_attr",(function(e){return e})),Handlebars.registerHelper("esc_url",(function(e){return e})),Handlebars.registerHelper("esc_html",(function(e){return e})),Handlebars.registerHelper("base_url",(function(){const e=["block"];return o&&e.push(o.substr(1)),["",...e,""].join("/")}));try{c=a(n)}catch(e){c=`<div style="max-width: 1280px; margin: 1rem auto;">\n      <h1 style="all: unset; font-size: 1.5rem; font-weight: bold; display: block;">Syntax Error:</h1>\n      <pre style="all: unset; padding: 10px 15px; background-color: #ffe6e6; border: 1px solid red; border-radius: 0.25rem; overflow: auto; display: block; white-space: pre;">${e.toString()}</pre>\n    </div>`}r.innerHTML=c,t&&t()}(e,n||{},document.getElementById("hbs-container"))}!function(){const e=new URLSearchParams({block:o,name:r().data||"default"});fetch(`/data?${e}`).then((e=>e.json())).then((e=>{n=e.data,c({data:n})}))}(),window.addEventListener("message",(function(e){const t=e.data,o="dataUpdate:";if("string"==typeof t&&t.startsWith(o))try{n=JSON.parse(t.substring(o.length)),c({data:n})}catch(e){console.log("Error parsing incoming data.",e)}})),function(){const e=window.io.connect("",{query:`block=${o}`});e.on("error",(function(e){console.log(e)})),e.on("templateUpdate",(function(e){c({template:e.template})})),e.on("scriptUpdate",(function(e){a("block-script").onload=()=>{c({template:e.template})}})),e.on("styleUpdate",(function(e){a("block-stylesheet")}))}()}();

layouts/scripts/frame/frame.js

@@ -17,6 +17,8 @@ function initBlock(blockName = '', selector = '', cb) {
 
 // Data Updates Listeners.
 (function () {
+  const block = getQueryParams().block;
+
   loadDataOptions();
   listenToDataOptionsUpdates();
 
@@ -50,7 +52,10 @@ function initBlock(blockName = '', selector = '', cb) {
   }
 
   function loadDataOptions() {
-    const queryParameters = new URLSearchParams({name: getQueryParams().data || 'default'});
+    const queryParameters = new URLSearchParams({
+      block,
+      name: getQueryParams().data || 'default'
+    });
     fetch(`/data?${queryParameters}`)
       .then((response) => response.json())
       .then((response) => {
@@ -58,14 +63,12 @@ function initBlock(blockName = '', selector = '', cb) {
         updateBlock({data});
       })
   }
-})();
 
   // Listen to Template updates.
-(function () {
   initSocket();
 
   function initSocket() {
-    const socket = window.io.connect();
+    const socket = window.io.connect('', {query: `block=${block}`});
 
     socket.on('error', function (err) {
       console.log(err);
@@ -78,8 +81,45 @@ function initBlock(blockName = '', selector = '', cb) {
     socket.on('templateUpdate', function (args) {
       updateBlock({template: args.template});
     });
+
+    socket.on('scriptUpdate', function (args) {
+      const tag = updateTag('block-script');
+      tag.onload = () => {
+        updateBlock({template: args.template});
+      }
+    });
+
+    socket.on('styleUpdate', function (args) {
+      updateTag('block-stylesheet');
+    });
+  }
+
+  function updateTag(id) {
+    const tag = document.getElementById(id);
+    const wrapper = tag.parentNode;
+
+    let clone;
+    let attr;
+    if (tag.tagName === 'SCRIPT') {
+      clone = document.createElement('script');
+      clone.type = 'text/javascript';
+      attr = 'src';
+    } else if (tag.tagName === 'LINK') {
+      clone = document.createElement('link');
+      clone.rel = 'stylesheet';
+      attr = 'href';
+    }
+
+    clone.id = id;
+
+    // Add version to the stylesheet URL, make sure we override the cache and already existing version there.
+    clone[attr] = tag[attr].replace(/(\?v=)[^&]+/, `$1${Date.now()}`);
+
+    tag.remove();
+    wrapper.append(clone);
+
+    return clone;
   }
-})();
 
   function updateBlock(args = {}) {
     if (args.template) {
@@ -116,7 +156,13 @@ function renderBlock(templateHbs, jsonData, target) {
     });
 
     Handlebars.registerHelper('base_url', function () {
-    return '/';
+      const list = ['block'];
+
+      if (block) {
+        list.push(block.substr(1));
+      }
+
+      return ['', ...list, ''].join('/');
     });
 
     let html;
@@ -135,3 +181,4 @@ function renderBlock(templateHbs, jsonData, target) {
       reload();
     }
   }
+})();

layouts/scripts/sync.jsx

@@ -46,31 +46,10 @@ function SyncScreen() {
   </>
 
   async function ignoreVersionSync() {
-    setLoading(true);
-
-    let data = {};
-    try {
-      const response = await fetch('/sync', {
-        method: 'POST',
-        body: JSON.stringify({ignore: true}),
-        headers: {
-          'Content-Type': 'application/json'
-        }
-      });
-      data = await response.json();
-    } catch (err) {
-      setError('Error: ' + err.message);
-      setLoading(false);
-      return;
-    }
-
-    if (data.status !== 200) {
-      setError(data.message);
-      setLoading(false);
-      return;
-    }
-
-    setTimeout(() => window.location.reload(), 1000);
+    // Add "ignore" query parameter to current URl and redirect.
+    const url = new URL(window.location.href);
+    url.searchParams.set('ignoreVersionSync', 'true');
+    window.location = url.href;
   }
 
   async function runSyncLogic() {
@@ -78,7 +57,14 @@ function SyncScreen() {
 
     let data = {};
     try {
-      const response = await fetch('/sync', {method: 'POST'});
+      const response = await fetch('/sync', {
+        method: 'POST',
+        body: JSON.stringify({block: getQueryParams().block}),
+        headers: {
+          'Content-Type': 'application/json'
+        }
+      });
+
       data = await response.json();
     } catch (err) {
       setError('Error: ' + err.message);
@@ -95,6 +81,21 @@ function SyncScreen() {
     setTimeout(() => window.location.reload(), 1000);
   }
 
+  // TODO: This function is used in multiple places (repeated code).
+  //  Move to a common place.
+  function getQueryParams() {
+    const urlParams = new URLSearchParams(window.location.search);
+    const params = {};
+
+    for (const [key, value] of urlParams) {
+      params[key] = value;
+    }
+
+    return params;
+  }
+
+
 }
 
 init();
+

layouts/scripts/toolbar/data-options/DataOptions.jsx

@@ -169,7 +169,7 @@ function DataOptions(props = {}) {
   }
 
   async function fetchDataOptions(name = 'default') {
-    const queryParameters = new URLSearchParams({name});
+    const queryParameters = new URLSearchParams({name, block: window.devTool.blockName});
     const response = await fetch(`/data?${queryParameters}`);
     return await response.json();
   }

layouts/scripts/toolbar/publish.jsx

@@ -43,6 +43,7 @@ function Publish(props = {}) {
 export function setupPublish(rootAttributes) {
   // INIT
   const wrapper = document.createElement('div');
+  wrapper.setAttribute('id', 'publish-btn');
   document.querySelector('.page_toolbar__right').append(wrapper)
 
   const root = ReactDOM.createRoot(wrapper);

layouts/scroll.hbs

@@ -1,3 +1,4 @@
+<!doctype html>
 <html lang="en">
 
 {{> (include_partial "layouts/partials/head") }}

layouts/styles/page--main.css

@@ -8,6 +8,9 @@ body {
   font-size: 1rem;
   background-color: #F7FAFC;
 }
+body.view-mode #publish-btn {
+  display: none;
+}
 
 .btn {
   --btn-color: #333;

layouts/styles/page--main.css.map

@@ -1 +1 @@
-{"version":3,"sourceRoot":"","sources":["page--main.scss","_buttons.scss","_overlay.scss","_page--preview.scss"],"names":[],"mappings":"AAAA;EACE;EACA;;;AAGF;EACE;EACA;EAEA;;;ACTF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;AAEA;EACE;EACA;;AAGF;EACE;EACA;;AAGF;EACE;EACA;EACA;;;AC5BJ;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AFIF;EACE;EACA;EACA;EACA;EAEA;EACA;EACA;EAEA;EACA;EACA;EAEA;EACA;;AAEA;EACE;EACA;EACA;EACA;;AAEA;EACE;;AAEA;EAHF;IAII;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAKF;EADF;IAEI;;;AAKN;EAEE;EACA;EACA;EACA;;AAGF;EACE;;;AGlFJ;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EAGA;EACA;EAEA;EACA;EACA;EACA;;AAEA;EACE;EAEA;EACA;;;AHiEJ;EACE;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AAGF;EAEE;;;AAGF;EAEE;EACA","file":"page--main.css"}
+{"version":3,"sourceRoot":"","sources":["page--main.scss","_buttons.scss","_overlay.scss","_page--preview.scss"],"names":[],"mappings":"AAAA;EACE;EACA;;;AAGF;EACE;EACA;EAEA;;AAGE;EACE;;;ACbN;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;AAEA;EACE;EACA;;AAGF;EACE;EACA;;AAGF;EACE;EACA;EACA;;;AC5BJ;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AFUF;EACE;EACA;EACA;EACA;EAEA;EACA;EACA;EAEA;EACA;EACA;EAEA;EACA;;AAEA;EACE;EACA;EACA;EACA;;AAEA;EACE;;AAEA;EAHF;IAII;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAKF;EADF;IAEI;;;AAKN;EAEE;EACA;EACA;EACA;;AAGF;EACE;;;AGxFJ;EACE;EACA;;;AAGF;EACE;EACA;EACA;EACA;EAGA;EACA;EAEA;EACA;EACA;EACA;;AAEA;EACE;EAEA;EACA;;;AHuEJ;EACE;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AAGF;EAEE;;;AAGF;EAEE;EACA","file":"page--main.css"}

layouts/styles/page--main.scss

@@ -8,6 +8,12 @@ body {
   font-size: 1rem;
   //overflow: none;
   background-color: #F7FAFC;
+
+  &.view-mode {
+    #publish-btn {
+      display: none;
+    }
+  }
 }
 
 @import "buttons";

layouts/sync.hbs

@@ -1,3 +1,4 @@
+<!doctype html>
 <html lang="en">
 
 <head>

package.json

@@ -7,8 +7,9 @@
 		"url": "https://axe-web.com/"
 	},
 	"scripts": {
-		"info": "BLOCK_NAME=swiper-test MODULE_PATH= node debug.js",
-		"dev": "BLOCK_NAME=swiper-test MODULE_PATH= node server.js",
+		"info": "node debug.js",
+		"dev": "node server.js",
+		"view-mode": "VIEW_MODE=true node server.js",
 		"build-platform": "BLOCK_NAME=swiper-test MODULE_PATH= node ./build.js",
 		"dev-dev-tool": "rollup --config rollup.config.js --watch",
 		"build-dev-tool": "rollup --config rollup.config.js"

routes/base-view.js

@@ -0,0 +1,43 @@
+import {getBlockConfigs, getBlockName, getBlockVariations, handlebarLayoutsPath} from "../helpers.js";
+import path from "path";
+import {buildAssetFiles} from "../inc/changes-watcher.js";
+
+export default async function (req, res) {
+  const blockName = req.query.block;
+  const block = getBlockName(blockName);
+
+  const blockDir = path.join('blocks', '@' + block.project, block.name);
+  const dataFiles = await getBlockVariations(blockDir);
+
+  const data = await getDataOfFrame(!!req.query.iframe, Object.assign({}, block, {dataFiles}));
+
+  if (data.error && data.errorMessage) {
+    return res.send(data.errorMessage);
+  }
+
+  const baseView = req.params.baseView ?? 'alignfull';
+
+  await buildAssetFiles(blockDir);
+
+  res.render(baseView, data)
+}
+
+async function getDataOfFrame(isIframe = false, block) {
+  const data = {config: await getBlockConfigs(block)};
+  if (data.error && data.errorMessage) {
+    return data;
+  }
+
+  data.helpers = {
+    include_partial: (filesPath) => handlebarLayoutsPath(filesPath),
+  }
+
+  if (isIframe) {
+    data.iframeMode = true;
+  }
+
+  data.staticFilesPath = `/block/${block.project}/${block.name}`;
+
+  return data;
+}
+

routes/data.js

@@ -0,0 +1,30 @@
+import {
+  getBlockData,
+  getBlockName,
+  getBlockVariations,
+  getListOfDesignPreviewFiles,
+} from "../helpers.js";
+import path from "path";
+import fs from "fs/promises";
+
+export default async function (req, res, next) {
+  let variationName = req.query.name ? req.query.name : 'default';
+  const block = getBlockName(req.query.block);
+
+  const blockDir = path.join('blocks', '@' + block.project, block.name);
+  const dataFiles = await getBlockVariations(blockDir);
+  const data = await getBlockData(variationName, {projectPath: blockDir});
+
+  let designPreviewFiles = [];
+  try {
+    designPreviewFiles = getListOfDesignPreviewFiles(variationName, await fs.readdir(path.join(blockDir, 'design', 'preview')), block);
+  } catch (err) {
+    console.log('Preview Design doesn\'t exist');
+  }
+
+  return res.json({
+    dataOptions: dataFiles,
+    designPreview: designPreviewFiles,
+    data,
+  });
+}

routes/index.js

@@ -0,0 +1,47 @@
+import {getBlockConfigs, getBlockName, getBlockVariations, handlebarLayoutsPath, verifyVersion} from "../helpers.js";
+import path from "path";
+import {REGISTRY_URL} from "@axe-web/create-block/env.js";
+
+export async function index(req, res, next) {
+
+  const blockName = req.query.block;
+  const block = getBlockName(blockName);
+
+  const blockDir = path.join('blocks', '@' + block.project, block.name);
+  const dataFiles = await getBlockVariations(blockDir);
+
+  const data = await getBlockConfigs(Object.assign({}, block, {dataFiles}));
+
+  if (data.error && data.errorMessage) {
+    // TODO: Throw Error.
+  }
+
+  data.helpers = {
+    include_partial: (filesPath) => handlebarLayoutsPath('.', filesPath),
+  }
+
+  // TODO: Make sure we sync block before we start working on it.
+  try {
+    const verifiedVersion = await verifyVersion(blockName, blockDir, REGISTRY_URL);
+    if (!verifiedVersion && !req.query['ignoreVersionSync']) {
+      return res.render('sync', data);
+    }
+  } catch (err) {
+    const errorMessage = "Can't verify block version.";
+    console.log(errorMessage, err);
+    return next(new Error(errorMessage));
+  }
+
+  data.blockName = blockName;
+  data.baseView = 'alignfull';
+  data.port = `/view/${data.baseView}`;
+
+  let previewFrameUrl = ``; // This variable is used in `*.hbs` and it will be updated once BrowserSync is ready.
+  data.previewFrameUrl = `${previewFrameUrl}${data.port}`;
+  data.previewFrameUrlNewWindow = `${previewFrameUrl}${data.port}`;
+  data.shareUrl = '';
+
+  data.viewMode = process.env.VIEW_MODE ?? false;
+
+  res.render('index', data);
+}

routes/publish.js

@@ -0,0 +1,7 @@
+export default async function (req, res, next) {
+
+  if (process.env.VIEW_MODE) {
+    throw new Error("Can't publish in view mode.");
+  }
+
+}

routes/static-files.js

@@ -0,0 +1,23 @@
+export function staticFiles(req, res) {
+  const fileName = req.params[0];
+  const path = `blocks/@${req.params.project}/${req.params.blockName}/src/${fileName}`;
+
+  return deliverStaticFile(path, res);
+}
+
+export function previewFiles(req, res) {
+  const fileName = req.params[0];
+  const path = `blocks/@${req.params.project}/${req.params.blockName}/design/${fileName}`;
+
+  return deliverStaticFile(path, res);
+}
+
+function deliverStaticFile(path, res) {
+  // If file doesn't exist, return 404.
+  res.sendFile(path, {root: './'}, function (err) {
+    if (err) {
+      res.send('File not found.');
+      res.status(err.status).end();
+    }
+  });
+}

routes/sync.js

@@ -0,0 +1,11 @@
+import {syncFilesWithCloud} from "../helpers.js";
+
+export default async function (req, res, next) {
+  try {
+    await syncFilesWithCloud(req.body.block, null, true);
+  } catch (err) {
+    return res.status(500).json({status: 500, message: err.message});
+  }
+
+  res.json({status: 200, message: 'Successfully synced!'});
+}

server.js

@@ -1,604 +1,35 @@
 #!/usr/bin/env node
 
-import {PRODUCTION_REGISTRY_URL} from "./env.js";
-import path from 'path';
-import fetch from "node-fetch";
-import express from 'express';
-import {create} from 'express-handlebars';
-import browserSync from 'browser-sync';
-import config from 'config';
-import gulp from 'gulp';
-import babel from "gulp-babel";
-import uglify from "gulp-uglify";
-import rename from "gulp-rename";
-import dartSass from 'sass';
-import gulpSass from 'gulp-sass';
-import sourcemaps from "gulp-sourcemaps";
-import fs from "fs/promises";
-import open from "open";
-import {sanitizeUrl} from "@braintree/sanitize-url";
-import sanitizeHtml from 'sanitize-html';
-import {escape} from "lodash-es";
-import {
-  getBlockConfigs,
-  getBlockData,
-  getBlockName,
-  getConfigs,
-  getImagesList,
-  isFileEmpty,
-  readJSONFile,
-  removeCommentsFromCss,
-  removeCommentsFromJs,
-  replaceNames,
-  syncFilesWithCloud,
-  uploadFile,
-  verifyVersion,
-  zipProject
-} from "./helpers.js";
-import PluginError from 'plugin-error';
-import {Server} from "socket.io";
-import {createServer} from 'http';
-import {authtoken, connect} from "ngrok";
-import bodyParser from "body-parser";
+import {init} from "./inc/server.js";
+import {index} from "./routes/index.js";
+import dataRoute from "./routes/data.js";
+import baseView from "./routes/base-view.js";
+import syncRoute from "./routes/sync.js";
+import publishRoute from "./routes/publish.js";
+import {ViewSync} from "./inc/view-sync.js";
+import {previewFiles, staticFiles} from "./routes/static-files.js";
+import {setupWatcher} from "./inc/changes-watcher.js";
 
-/**
- * Constants
- */
+const {expressApp, httpServer} = init();
 
-const {isDev, modulesPath, projectPath, developmentBlockName} = getConfigs();
-const blocksRegistry = isDev ? 'http://localhost:3020' : PRODUCTION_REGISTRY_URL;
-const DevToolToken = 'D9lgz0TvzXCnp0xnwVBL109DaAR6Puk6F7YewDhgmP8='; // Temporary token for development purposes.
+const viewSync = new ViewSync(httpServer);
+setupWatcher(viewSync);
 
-const dataFiles = await getDataFiles(projectPath);
-const DEFAULT_VIEW_LAYOUT = 'alignfull';
+const PORT = process.env.PORT || 3010;
 
-/**
- * State
- */
-
-let port = 3000; // This variable is used in `*.hbs` and it will be updated once BrowserSync is ready.
-let previewFrameUrl = `/`; // This variable is used in `*.hbs` and it will be updated once BrowserSync is ready.
-let shareUrl = '';
-const sessions = [];
-let ignoreVersionSync = false;
-let bs;
-
-/**
- * Init server
- */
-
-const app = express();
-
-// parse application/x-www-form-urlencoded
-app.use(bodyParser.urlencoded({extended: false}))
-
-// parse application/json
-app.use(bodyParser.json())
-
-const httpServer = createServer(app);
-initSessionsServer(httpServer);
-
-const sass = gulpSass(dartSass);
-
-const hbs = create({
-  extname: '.hbs', defaultLayout: false, partialsDir: ['.'], helpers: {
-    esc_attr(attr) {
-      return escape(attr);
-    }, esc_url(url) {
-      return sanitizeUrl(url);
-    }, esc_html(html) {
-      // TODO: Check if we can remove this helper.
-      return html;
-    }, safe_html(html) {
-      return sanitizeHtml(html);
-    }
-  }
+httpServer.listen(PORT, '0.0.0.0', () => {
+  console.log(`Server app listening on port ${PORT}`)
 });
 
-app.engine('.hbs', hbs.engine);
-app.set('view engine', '.hbs');
-app.set('views', path.join(modulesPath, 'layouts'));
+// Middleware
+// expressApp.use(setHeaders);
 
-//
 // Routes
-//
+expressApp.get('/', index);
+expressApp.get('/data', dataRoute);
+expressApp.get('/view/:baseView', baseView);
+expressApp.get('/design/:project/:blockName/*', previewFiles);
+expressApp.get('/block/:project/:blockName/*', staticFiles);
+expressApp.post('/sync', syncRoute);
+expressApp.get('/publish', publishRoute);
 
-app.get('/', async (req, res, next) => {
-  const data = getBlockConfigs({modulesPath, dataFiles});
-  if (data.error && data.errorMessage) {
-    return res.send(data.errorMessage);
-  }
-
-  const baseView = config.has('baseView') ? config.get('baseView') : DEFAULT_VIEW_LAYOUT;
-  const baseViewUrl = `view/${baseView}`;
-
-  data.helpers = {
-    include_partial: (filesPath) => handlebarLayoutsPath(modulesPath, filesPath),
-  }
-
-  try {
-    const verifiedVersion = await verifyVersion(projectPath, blocksRegistry);
-    if (!verifiedVersion && !ignoreVersionSync) {
-      return res.render('sync', data);
-    }
-  } catch (err) {
-    const errorMessage = "Can't verify block version.";
-    console.log(errorMessage, err);
-    return next(new Error(errorMessage));
-  }
-
-  data.baseView = baseView;
-  data.port = `/${baseViewUrl}`;
-  data.previewFrameUrl = `${previewFrameUrl}/${baseViewUrl}`;
-  data.shareUrl = shareUrl;
-
-  // TODO: Need to review this logic, conflicts with the browsersync work after "/sync" action.
-  // if (req.headers.referer) {
-  //   // NGROK, public URL
-  //   data.shareUrl = undefined; // Link already shared.
-  //   data.previewFrameUrl = `/${baseViewUrl}`;
-  //   data.publicUrl = true;
-  // }
-
-  res.render('index', data);
-});
-
-app.get('/view/:baseView', (req, res) => {
-  const data = getDataOfFrame(!!req.query.iframe);
-
-  if (data.error && data.errorMessage) {
-    return res.send(data.errorMessage);
-  }
-
-  const baseView = req.params.baseView ?? DEFAULT_VIEW_LAYOUT;
-
-  res.render(baseView, data)
-});
-
-app.get('/publish', async (req, res) => {
-  const data = await readJSONFile(path.join(projectPath, `block.json`));
-
-  // Trigger build on the registry server only if the type of the unit is `foundation` or `component`.
-  const uploadStaticFiles = ['foundation', 'component'].includes(data.type);
-
-  // Prepare list of static files for the registry server.
-  if (uploadStaticFiles) {
-    data.static_files = {
-      css: getBlockName(data.name).name + '.min.css',
-      js: getBlockName(data.name).name + '.min.js',
-      images: await getImagesList(path.join(projectPath, 'src', 'images')),
-    }
-
-    if (await isFileEmpty(path.join(projectPath, `src/scripts`, data.static_files.js), true)) {
-      delete data.static_files.js;
-    }
-
-    if (!data.static_files.images.length) {
-      delete data.static_files.images;
-    }
-  }
-
-  let responseData = {
-    uploadBundleUrl: undefined,
-    staticFilesUrls: {}
-  };
-
-  try {
-    const response = await fetch(`${blocksRegistry}`, {
-      method: 'POST',
-      body: JSON.stringify(data),
-      headers: {'Content-Type': 'application/json'}
-    });
-
-    responseData = await response.json();
-  } catch (e) {
-    res.json({success: false, message: 'Blocks Registry server is not available.'});
-    return;
-  }
-
-  if (responseData.statusCode !== 200) {
-    res.json({success: false, message: 'Error on registry level.'});
-    return;
-  }
-
-  // Start files uploading process.
-  try {
-    if (responseData.uploadBundleUrl) {
-      await zipProject(path.join(projectPath, 'src'), path.join(projectPath, 'dist.zip'));
-      await uploadFile(path.join(projectPath, 'dist.zip'), responseData.uploadBundleUrl); // Bundle
-    }
-
-    if (uploadStaticFiles) {
-      if (responseData.staticFilesUrls.css) {
-        await uploadFile(
-          path.join(projectPath, 'src/styles', data.static_files.css),
-          responseData.staticFilesUrls.css.uploadUrl,
-          (content) => {
-            if (responseData.staticFilesUrls.images) {
-              content = replaceNames(content, data.static_files.images, responseData.staticFilesUrls.images);
-            }
-
-            removeCommentsFromCss(content)
-            return content;
-          }); // CSS
-      }
-
-      if (responseData.staticFilesUrls.js) {
-        await uploadFile(
-          path.join(projectPath, 'src/scripts', data.static_files.js),
-          responseData.staticFilesUrls.js.uploadUrl,
-          (data) => removeCommentsFromJs(data)
-        ); // JS
-      }
-
-      if (responseData.staticFilesUrls.images) {
-        for (let i = 0; i < data.static_files.images.length; i++) {
-          await uploadFile(
-            path.join(projectPath, 'src/images', data.static_files.images[i]),
-            responseData.staticFilesUrls.images[i].uploadUrl,
-          ); // Images
-        }
-      }
-    }
-  } catch (err) {
-    // TODO: Need to update the registry server.
-    await fs.unlink(path.join(projectPath, 'dist.zip')); // Remove local bundle
-
-    res.json({success: false, message: err.message});
-    return;
-  }
-
-  await fs.unlink(path.join(projectPath, 'dist.zip')); // Remove local bundle
-
-  // Trigger project's global files build on the registry server.
-  if (uploadStaticFiles) {
-    try {
-      await triggerGlobalProjectFilesBuild(getBlockName(data.name).project);
-    } catch (err) {
-      res.json({success: false, message: 'Something wrong with Project Builder.'});
-      return;
-    }
-  }
-
-  try {
-    await syncFilesWithCloud(path.join(projectPath, 'block.json'), bs);
-  } catch (err) {
-    res.json({success: false, message: err});
-    return;
-  }
-
-  res.json({success: true});
-});
-
-app.get('/data', async (req, res) => {
-  let jsonDataFileName = req.query.name ? req.query.name : 'default';
-
-  const dataFiles = await getDataFiles(projectPath);
-  const data = await getBlockData(jsonDataFileName, {projectPath});
-
-  let designPreviewFiles = [];
-  try {
-    designPreviewFiles = getListOfDesignPreviewFiles(jsonDataFileName, await fs.readdir(path.join(projectPath, 'design', 'preview')));
-  } catch (err) {
-    console.log('Preview Design doesn\'t exist');
-  }
-
-  return res.json({
-    dataOptions: dataFiles,
-    designPreview: designPreviewFiles,
-    data,
-  });
-});
-
-app.post('/sync', async (req, res) => {
-  if (req.body['ignore']) {
-    ignoreVersionSync = true;
-    res.json({status: 200, message: 'Version upgrade is ignored.'});
-    return;
-  }
-
-  try {
-    await syncFilesWithCloud(path.join(projectPath, `block.json`), bs, true);
-  } catch (err) {
-    res.status(500).json({status: 500, message: err});
-  }
-
-  res.json({status: 200, message: 'Successfully synced!'});
-});
-
-// Errors handler
-app.use(handleSyntaxErrors);
-
-// Static Files
-app.use(express.static(path.join(projectPath, 'src')));
-app.use(express.static(path.join(projectPath, 'design')));
-app.use(express.static(path.join(modulesPath, 'layouts')));
-
-// Custom Middleware
-app.use(setHeaders);
-
-// Setup Gulp
-await buildAssetFiles();
-
-// BrowserSync
-shareUrl = await getShareableUrl();
-const bsOptions = await startBrowserSync();
-port = bsOptions.port;
-previewFrameUrl = bsOptions.previewFrameUrl;
-await open(bsOptions.devToolUrl);
-
-
-//
-// Functions
-//
-
-function getListOfDesignPreviewFiles(jsonDataFileName, previewFiles) {
-  return previewFiles
-    .filter(fileName => {
-      return fileName.startsWith(jsonDataFileName + '.');
-    })
-    .map(fileName => {
-      const fileData = fileName.split('.');
-      const fileFormat = fileData.pop();
-      const previewSize = fileData.pop();
-
-      return {
-        dataSource: jsonDataFileName,
-        widthDimension: Number.parseInt(previewSize, 10),
-        url: `/preview/${fileName}`,
-      };
-    });
-}
-
-function getDataOfFrame(isIframe = false) {
-  const data = {config: getBlockConfigs({modulesPath, dataFiles})};
-  if (data.error && data.errorMessage) {
-    return data;
-  }
-
-  data.helpers = {
-    include_partial: (filesPath) => handlebarLayoutsPath(modulesPath, filesPath),
-  }
-
-  if (isIframe) {
-    data.iframeMode = true;
-  }
-
-  return data;
-}
-
-function startBrowserSync() {
-  return new Promise((resolve, reject) => {
-    const listener = httpServer.listen(0, async () => {
-      const PORT = listener.address().port;
-
-      console.log(`The web server has started on port ${PORT}`);
-
-      // BS is global variable.
-      bs = browserSync.create();
-
-      const files = getJSBundleFiles();
-      gulp.watch(files, {delay: 400}, gulp.series(['build-script-files', function (cb) {
-        browserSyncReload(bs, 'js', 'Script Files Change');
-        return cb();
-      }]));
-
-      gulp.watch(path.posix.join(projectPath, "src/**/*.scss"), {delay: 400}, gulp.series(['build-styling-files', function (cb) {
-        browserSyncReload(bs, 'css', 'Style Files Change');
-        return cb();
-      }]));
-
-      bs.watch(path.join(projectPath, "src/**/*.hbs"), function () {
-        return syncTemplate(sessions);
-      });
-
-      const args = {
-        proxy: `http://localhost:${PORT}`,
-        open: false
-      };
-
-      if (shareUrl) {
-        args.socket = {
-          domain: shareUrl
-        };
-      }
-
-      bs.init(args, (err, bs) => {
-        if (err) {
-          return reject(err);
-        }
-
-        const options = bs.getOptions().toJS();
-
-        const urls = {
-          devTool: options.urls.local.replace(options.port, options.proxy.url.port),
-          previewFrame: options.urls.local,
-        };
-
-        // If local network is available.
-        if (options.urls.external) {
-          urls.devTool = options.urls.external.replace(options.port, options.proxy.url.port);
-          urls.previewFrame = options.urls.external;
-        }
-
-        resolve({
-          devToolUrl: urls.devTool,
-          previewFrameUrl: urls.previewFrame,
-          port: options.port
-        });
-      });
-    });
-  });
-}
-
-function browserSyncReload(bs, extension = '', message = '') {
-  if (isDev) {
-    // console.log(event, file);
-    console.log(message);
-  }
-
-  if (extension) {
-    extension = "*." + extension;
-  }
-
-  bs.reload(extension);
-}
-
-function getJSBundleFiles() {
-  return [path.posix.join(projectPath, "src/**/*.js"), path.posix.join(projectPath, "src/**/*.mjs"), "!" + path.posix.join(projectPath, "src/**/*.min.js")];
-}
-
-function buildScriptFiles(done) {
-  const files = getJSBundleFiles();
-  return gulp.src(files, {base: path.posix.join(projectPath, 'src')})
-    .pipe(sourcemaps.init({}))
-    .pipe(babel()).on('error', function (error) {
-      showError(new PluginError('JavaScript', error).toString());
-      done();
-    })
-    .pipe(gulp.src(path.join(projectPath, 'vendor/*.js')))
-    // .pipe(gulp.dest('src/'))
-    .pipe(rename({extname: '.min.js'}))
-    .pipe(uglify())
-    .pipe(sourcemaps.write('.'))
-    .pipe(gulp.dest(path.posix.join(projectPath, 'src')));
-}
-
-function buildStyleFiles(done) {
-  return gulp.src(path.join(projectPath, 'src/**/*.scss'), {base: path.posix.join(projectPath, 'src')})
-    .pipe(sourcemaps.init({}))
-    .pipe(sass.sync({outputStyle: 'compressed'}).on('error', function (error) {
-      showError(new PluginError('SCSS', error.messageFormatted).toString());
-      // sass.logError(error);
-      done();
-    }))
-    // .pipe(gulp.dest('src/'))
-    .pipe(rename({extname: '.min.css'}))
-    .pipe(sourcemaps.write('.', {}))
-    .pipe(gulp.dest(path.posix.join(projectPath, 'src')))
-}
-
-function buildAssetFiles() {
-  // Register tasks.
-  gulp.task('build-script-files', buildScriptFiles);
-  gulp.task('build-styling-files', buildStyleFiles);
-
-  // Run first build.
-  return new Promise((resolve) => {
-    gulp.series('build-script-files', 'build-styling-files', function () {
-      resolve();
-    })();
-  });
-}
-
-function showError(errorMessage) {
-  console.log(errorMessage);
-
-  // TODO: Send this message to browser.
-  // So the developer can understand there is an error.
-}
-
-function prepareListOfDataFiles(dataFiles) {
-  return dataFiles
-    .filter((fileName) => fileName.split('.').pop() === 'json')
-    .map((fileName) => {
-      const splitName = fileName.split('.');
-      splitName.pop();
-      return splitName.join('');
-    })
-    .sort();
-}
-
-function handleSyntaxErrors(err, req, res, next) {
-  if (err) {
-    return res.render('error', {
-      helpers: {
-        include_partial: (filesPath) => path.join(modulesPath, filesPath),
-      },
-      err
-    });
-  }
-
-  next();
-}
-
-function handlebarLayoutsPath() {
-  return path.join(...arguments)
-    .replace(/\\/g, '/'); // Windows path issue. Fix all "\" for Handlebars.
-}
-
-function initSessionsServer(httpServer) {
-  const io = new Server(httpServer);
-  io.on('connection', async (socket) => {
-    sessions.push(socket);
-    await syncTemplate(sessions);
-  });
-
-  return httpServer;
-}
-
-function setHeaders(req, res, next) {
-  res.setHeader('Access-Control-Allow-Origin', '*');
-  next();
-}
-
-async function syncTemplate(sessions = []) {
-  const blockName = config.has('blockName') ? config.get('blockName') : developmentBlockName;
-  const hbsTemplate = await fs.readFile(handlebarLayoutsPath(projectPath, 'src', `${blockName}.template.hbs`), 'utf8');
-
-  sessions.forEach(socket => {
-    socket.emit('templateUpdate', {template: hbsTemplate});
-  });
-}
-
-async function getShareableUrl() {
-  let domain = PRODUCTION_REGISTRY_URL;
-  let data = {}
-
-  try {
-    const response = await fetch(`${domain}/dev-tool/?devToolToken=${DevToolToken}`);
-    data = await response.json();
-  } catch (e) {
-    console.log('Error:', `Can't load data from DevTool endpoint: ${domain}`);
-  }
-
-  if (data.statusCode !== 200) {
-    console.log('Reply from DevTool endpoint:', data.message);
-    return null;
-  }
-
-  let url;
-  try {
-    await authtoken(data.ngrokApiToken);
-    url = await connect(port);
-  } catch (e) {
-    console.log('Error:', `Can't connect to ngrok, probably wrong token.`);
-  }
-
-  return url;
-}
-
-async function triggerGlobalProjectFilesBuild(project) {
-  const response = await fetch(`${blocksRegistry}/project-files`, {
-    method: 'POST',
-    body: JSON.stringify({project}),
-    headers: {'Content-Type': 'application/json'}
-  });
-
-  return response.json();
-}
-
-async function getDataFiles(projectPath) {
-  const dataFiles = [];
-
-  try {
-    await fs.access(path.join(projectPath, 'data'));
-
-    const files = prepareListOfDataFiles(await fs.readdir(path.join(projectPath, 'data')));
-    dataFiles.push(...files);
-  } catch (e) {
-    console.log('Warning: data folder not found.');
-  }
-
-  return dataFiles;
-}