Made it so, when using the batch code generator, it sends e-mails to everyone

src/pages/api/code.ts

@@ -7,6 +7,7 @@ import {sessionOptions} from "@/lib/session";
 import {Type} from "@/interfaces/user";
 import {PERMISSIONS} from "@/constants/userPermissions";
 import {uuidv4} from "@firebase/util";
+import {prepareMailer, prepareMailOptions} from "@/email";
 
 const db = getFirestore(app);
 
@@ -18,7 +19,7 @@ async function handler(req: NextApiRequest, res: NextApiResponse) {
 		return;
 	}
 
-	const {type, codes} = req.body as {type: Type; codes: string[]};
+	const {type, codes, emails} = req.body as {type: Type; codes: string[]; emails?: string[]};
 	const permission = PERMISSIONS.generateCode[type];
 
 	if (!permission.includes(req.session.user.type)) {
@@ -26,10 +27,27 @@ async function handler(req: NextApiRequest, res: NextApiResponse) {
 		return;
 	}
 
-	for (const code of codes) {
+	const codePromises = codes.map(async (code, index) => {
 		const codeRef = doc(db, "codes", uuidv4());
 		await setDoc(codeRef, {type, code});
-	}
 
-	res.status(200).json({ok: true});
+		if (emails && emails.length > index) {
+			const transport = prepareMailer();
+			const mailOptions = prepareMailOptions(
+				{
+					type,
+					code,
+				},
+				[emails[index]],
+				"EnCoach Registration",
+				"main",
+			);
+
+			await transport.sendMail(mailOptions);
+		}
+	});
+
+	Promise.all(codePromises).then(() => {
+		res.status(200).json({ok: true});
+	});
 }