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Ghost/ghost/email-content-generator/lib/email-content-generator.js
2022-05-05 12:17:30 +08:00

55 lines
1.7 KiB
JavaScript

const _ = require('lodash').runInContext();
const fs = require('fs-extra');
const path = require('path');
const htmlToText = require('html-to-text');
_.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
class EmailContentGenerator {
/**
*
* @param {Object} options
* @param {function} options.getSiteUrl
* @param {function} options.getSiteTitle
* @param {string} options.templatesDir - path to the directory containing email templates
*/
constructor({getSiteUrl, getSiteTitle, templatesDir}) {
this.getSiteUrl = getSiteUrl;
this.getSiteTitle = getSiteTitle;
this.templatesDir = templatesDir;
}
/**
*
* @param {Object} options
* @param {string} options.template - HTML template name to use for generation
* @param {Object} [options.data] - variable data to use during HTML template compilation
* @returns {Promise<{html: String, text: String}>} resolves with an object containing html and text properties
*/
async getContent(options) {
const defaults = {
siteUrl: this.getSiteUrl(),
siteTitle: this.getSiteTitle()
};
const data = _.defaults(defaults, options.data);
// read the proper email body template
const content = await fs.readFile(path.join(this.templatesDir, options.template + '.html'), 'utf8');
// insert user-specific data into the email
const compiled = _.template(content);
const htmlContent = compiled(data);
// generate a plain-text version of the same email
const textContent = htmlToText.fromString(htmlContent);
return {
html: htmlContent,
text: textContent
};
}
}
module.exports = EmailContentGenerator;