Switched to handlebars for templateing

ref #5

src/PdfCreator.ts

@@ -2,7 +2,7 @@ import fs from "fs";
 import path from 'path';
 import puppeteer from "puppeteer";
 import { Runner } from './models/Runner';
-
+import Handlebars = require('handlebars');
 /**
  * This class is responsible for all things pdf creation.
  * This uses the html templates from src/templates.
@@ -19,13 +19,10 @@ export class PdfCreator {
 
     //TODO: Accept the runner class
     public async generateSponsoringContract(runner: Runner): Promise<any> {
-        let template = fs.readFileSync(`${this.templateDir}/sponsoring_contract.html`, 'utf8');
-        template = template
-            .replace("{{runner_id}}", runner.id.toString())
-            .replace("{{runner_firstname}}", runner.firstname)
-            .replace("{{runner_lastname}}", runner.lastname)
-            .replace("{{runner_groupname}}", runner.group.name);
-        return await this.renderPdf(template, { format: "A5", landscape: true });
+        const template_source = fs.readFileSync(`${this.templateDir}/sponsoring_contract.html`, 'utf8');
+        const template = Handlebars.compile(template_source);
+        const result = template({ runner: runner })
+        return await this.renderPdf(result, { format: "A5", landscape: true });
     }
 
     /**