109 lines
3.2 KiB
TypeScript
109 lines
3.2 KiB
TypeScript
import _ from "lodash";
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import deepExtend from "deep-extend";
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import {readFileSync, promises as fs} from "graceful-fs";
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import moment from "moment";
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import {htmlToText} from "nodemailer-html-to-text";
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import {config} from "../config";
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import Logger from "../logger";
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import {editNodeUrl} from "../utils/urlBuilder";
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import {Transporter} from "nodemailer";
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import {MailData, Mail} from "../types";
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const templateBasePath = __dirname + '/../mailTemplates';
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const snippetsBasePath = templateBasePath + '/snippets';
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const templateFunctions: {
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[key: string]:
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| ((name: string, data: MailData) => string)
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| ((data: MailData) => string)
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| ((href: string, text: string) => string)
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| ((unix: number) => string)
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} = {};
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function renderSnippet(this: any, name: string, data: MailData): string {
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const snippetFile = snippetsBasePath + '/' + name + '.html';
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return _.template(readFileSync(snippetFile).toString())(deepExtend(
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{},
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this, // parent data
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data,
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templateFunctions
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));
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}
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function snippet(name: string): ((this: any, data: MailData) => string) {
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return function (this: any, data: MailData): string {
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return renderSnippet.bind(this)(name, data);
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};
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}
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function renderLink(href: string, text: string): string {
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// noinspection HtmlUnknownTarget
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return _.template(
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'<a href="<%- href %>#" style="color: #E5287A;"><%- text %></a>'
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)({
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href: href,
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text: text || href
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});
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}
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function renderHR(): string {
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return '<hr style="border-top: 1px solid #333333; border-left: 0; border-right: 0; border-bottom: 0;" />';
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}
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function formatDateTime(unix: number): string {
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return moment.unix(unix).locale('de').local().format('DD.MM.YYYY HH:mm');
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}
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function formatFromNow(unix: number): string {
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return moment.unix(unix).locale('de').fromNow();
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}
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templateFunctions.header = snippet('header');
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templateFunctions.footer = snippet('footer');
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templateFunctions.monitoringFooter = snippet('monitoring-footer');
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templateFunctions.snippet = renderSnippet;
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templateFunctions.link = renderLink;
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templateFunctions.hr = renderHR;
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templateFunctions.formatDateTime = formatDateTime;
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templateFunctions.formatFromNow = formatFromNow;
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export function configureTransporter (transporter: Transporter): void {
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transporter.use('compile', htmlToText({
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tables: ['.table']
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}));
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}
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export async function render(mailOptions: Mail): Promise<{subject: string, body: string}> {
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const templatePathPrefix = templateBasePath + '/' + mailOptions.email;
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const subject = await fs.readFile(templatePathPrefix + '.subject.txt');
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const body = await fs.readFile(templatePathPrefix + '.body.html');
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const data = deepExtend(
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{},
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mailOptions.data,
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{
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community: config.client.community,
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editNodeUrl: editNodeUrl()
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},
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templateFunctions
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);
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try {
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return {
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subject: _.trim(_.template(subject.toString())(data)),
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body: _.template(body.toString())(data)
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};
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} catch (error) {
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Logger
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.tag('mail', 'template')
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.error('Error rendering template for mail[' + mailOptions.id + ']:', error);
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throw error;
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}
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}
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