embed-support/lib/main.js

Create embed codes for a static web project

'use strict';

var mkpath = require('mkpath');
var embedCode = require('lucify-embed-code');
var hbs = require('handlebars');
var fs = require('fs');
var j = require('path').join;
var validateOptions = require('./validate-options');

hbs.renderSync = function renderSync(str, ctx) {
  var context = ctx || {};
  try {
    var fn = typeof str === 'function' ? str : hbs.compile(str, context);
    return fn(context);
  } catch (err) {
    throw err;
  }
};

function copyEmbedScript(destPath) {
  var scriptFile = require.resolve('lucify-embed-code/lib/embed.js');
  fs.writeFileSync(j(destPath, 'embed.js'), fs.readFileSync(scriptFile));
}

function copyResizeScript(destPath) {
  var scriptFile = require.resolve('iframe-resizer/js/iframeResizer.min.js');
  fs.writeFileSync(j(destPath, 'resize.js'), fs.readFileSync(scriptFile));
}

function createEmbedCodesPage(destPath, template, embedUrl, embedBaseUrl) {
  // prepare template params
  var params = {
    scriptTagEmbedCode: embedCode.getScriptTagEmbedCode(embedBaseUrl, embedUrl),
    iFrameWithRemoteResizeEmbedCode: embedCode.getIFrameEmbedCodeWithRemoteResize(embedBaseUrl, embedUrl),
    iFrameWithInlineResizeEmbedCode: embedCode.getIFrameEmbedCodeWithInlineResize(embedBaseUrl, embedUrl)
  };

  // render template
  var templatePath = template || require.resolve('../../src/www/embed-codes.hbs');
  var renderedString = hbs.renderSync(fs.readFileSync(templatePath, 'utf8'), params);
  fs.writeFileSync(j(destPath, 'embed-codes.html'), renderedString);
}

function embedSupport(opts) {
  if (!validateOptions(opts)) {
    throw Error('Invalid options');
  }

  mkpath.sync(opts.dest);
  createEmbedCodesPage(opts.dest, opts.template, opts.iframeUrl, opts.destUrl);
  copyEmbedScript(opts.dest);
  copyResizeScript(opts.dest);
}

module.exports = embedSupport;