error on non-existing card

src/app.service.ts

@@ -165,6 +165,15 @@ export class AppService extends ConsoleLogger {
           const qty = entry.length;
           const cardData = cardDataMap[entry[0]];
 
+          const lang = dto.lang || 'sc';
+
+          if (!cardData[`${lang}_name`]) {
+            throw new BlankReturnMessageDto(
+              404,
+              `Card ID ${cardData.id} does not have name for language ${lang.toUpperCase()}`,
+            ).toException();
+          }
+
           await this.drawTextService.drawTextInBox(
             doc,
             qty.toString(),
@@ -173,7 +182,7 @@ export class AppService extends ConsoleLogger {
           );
           await this.drawTextService.drawTextInBox(
             doc,
-            cardData[`${dto.lang || 'sc'}_name`] || '',
+            cardData[`${dto.lang || 'sc'}_name`],
             moveDown(cord.name, j),
             pageIndex,
           );