ready to test

Testing

Signed-off-by: Kenneth Obsequio <k80308392@gmail.com>

services/certificate.service.js

@@ -0,0 +1,60 @@
+/***********************************************************************************************************************************************************************
+ * File Name: certificate.service.js
+ * Type of Program: Service
+ * Description: Generates a PDF certificate by compiling a Typst template.
+ *              Data is passed to the template via --input CLI flags (no temp files needed for input).
+ *              Output is written to a temp file, read into a Buffer, then cleaned up.
+ *
+ * Author: Kenneth Obsequio (@lash0000)
+ * Date Created: Jun. 18, 2026
+ ***********************************************************************************************************************************************************************/
+'use strict';
+
+const { execFile }  = require('child_process');
+const { promisify } = require('util');
+const fs            = require('fs/promises');
+const path          = require('path');
+const crypto        = require('crypto');
+const os            = require('os');
+
+const execFileAsync = promisify(execFile);
+const TEMPLATE_PATH = path.join(__dirname, '../templates/certificate.typ');
+
+/**
+ * @param {{
+ *   name:        string,
+ *   course:      string,
+ *   date:        string,
+ *   cert_no:     string,
+ *   ref_no:      string,
+ *   instructors?: string,
+ *   length?:     string,
+ * }} data
+ * @returns {Promise<Buffer>}
+ */
+async function generateCertificate({ name, course, date, cert_no, ref_no, instructors = '', length = '' }) {
+  const outPath = path.join(os.tmpdir(), `cert_${crypto.randomUUID()}.pdf`);
+
+  const args = [
+    'compile',
+    TEMPLATE_PATH,
+    outPath,
+    '--input', `name=${name}`,
+    '--input', `course=${course}`,
+    '--input', `date=${date}`,
+    '--input', `cert_no=${cert_no}`,
+    '--input', `ref_no=${ref_no}`,
+  ];
+
+  if (instructors) args.push('--input', `instructors=${instructors}`);
+  if (length)      args.push('--input', `length=${length}`);
+
+  try {
+    await execFileAsync('typst', args);
+    return await fs.readFile(outPath);
+  } finally {
+    await fs.unlink(outPath).catch(() => {});
+  }
+}
+
+module.exports = { generateCertificate };