feat: custom email message

backend/prisma/seed/config.seed.ts

@@ -60,6 +60,12 @@ const configVariables: Prisma.ConfigCreateInput[] = [
     value: "false",
     secret: false,
   },
+  {
+    key: "EMAIL_MESSAGE",
+    description: "Message which gets sent to the recipients. {creator} and {shareUrl} will be replaced with the creator's name and the share URL.",
+    type: "text",
+    value: "Hey!\n{creator} shared some files with you. View or download the files with this link: {shareUrl}\nShared securely with Pingvin Share 🐧",
+  },
   {
     key: "SMTP_HOST",
     description: "Host of the SMTP server",

backend/src/config/config.service.ts

@@ -23,7 +23,8 @@ export class ConfigService {
 
     if (configVariable.type == "number") return parseInt(configVariable.value);
     if (configVariable.type == "boolean") return configVariable.value == "true";
-    if (configVariable.type == "string") return configVariable.value;
+    if (configVariable.type == "string" || configVariable.type == "text")
+      return configVariable.value;
   }
 
   async listForAdmin() {
@@ -46,10 +47,15 @@ export class ConfigService {
     if (!configVariable || configVariable.locked)
       throw new NotFoundException("Config variable not found");
 
-    if (typeof value != configVariable.type)
+    if (
+      typeof value != configVariable.type &&
+      typeof value == "string" &&
+      configVariable.type != "text"
+    ) {
       throw new BadRequestException(
         `Config variable must be of type ${configVariable.type}`
       );
+    }
 
     const updatedVariable = await this.prisma.config.update({
       where: { key },

backend/src/email/email.service.ts

@@ -28,7 +28,11 @@ export class EmailService {
       from: `"Pingvin Share" <${this.config.get("SMTP_EMAIL")}>`,
       to: recipientEmail,
       subject: "Files shared with you",
-      text: `Hey!\n${creator.username} shared some files with you. View or dowload the files with this link: ${shareUrl}\nShared securely with Pingvin Share 🐧`,
+      text: this.config
+        .get("EMAIL_MESSAGE")
+        .replaceAll("\\n", "\n")
+        .replaceAll("{creator}", creator.username)
+        .replaceAll("{shareUrl}", shareUrl),
     });
   }
 }