fix(sign-up.page): convert generic backend error to more specific

src/app/features/signup/signup.page.ts

@@ -213,8 +213,30 @@ export class SignupPage {
           )
         ),
         catchError((err: unknown) => {
-          // eslint-disable-next-line @typescript-eslint/no-magic-numbers
-          if (err instanceof HttpErrorResponse && err.status === 400) {
+          if (
+            err instanceof HttpErrorResponse &&
+            err.error.error?.type === 'duplicate_email'
+          ) {
+            return this.errorService.toastError$(
+              this.translocoService.translate(
+                'error.diaBackend.duplicate_email'
+              )
+            );
+          }
+          if (
+            err instanceof HttpErrorResponse &&
+            err.error.error?.details?.username?.length > 0
+          ) {
+            return this.errorService.toastError$(
+              this.translocoService.translate(
+                'error.diaBackend.duplicate_username'
+              )
+            );
+          }
+          if (
+            err instanceof HttpErrorResponse &&
+            err.error.error?.type === 'invalid_referral_code'
+          ) {
             return this.errorService.toastError$(
               this.translocoService.translate(
                 'error.diaBackend.invalid_referral_code'

src/app/shared/error/error.service.ts

@@ -30,6 +30,7 @@ export class ErrorService {
             timeoutError,
             unknownError,
           }) => {
+            // eslint-disable-next-line no-debugger
             if (typeof error === 'string') return error;
             if (error instanceof HttpErrorResponse) {
               if (error.status === HttpErrorCode.INVALID)

src/assets/i18n/en-us.json

@@ -221,7 +221,9 @@
       "unable_to_confirm_order": "Unable to confirm order. Please try again.",
       "unpaid_num_exceed_threshold": "Too much unpaid NUM. Please contact us with email to restore account functionality.",
       "invalid_network_app_name": "Invalid network app.",
-      "invalid_referral_code": "Invalide referral code"
+      "invalid_referral_code": "Invalid referral code",
+      "duplicate_email": "The email has already been registered",
+      "duplicate_username": "User with this username already exists"
     },
     "wallets": {
       "emptyTransferAmount": "Please enter a valid transfer amount.",

src/assets/i18n/zh-tw.json

@@ -221,7 +221,9 @@
       "unable_to_confirm_order": "無法確認訂單。請再試一次。",
       "unpaid_num_exceed_threshold": "太多未付的 NUM。請通過電子郵件與我們聯繫以恢復帳戶功能。",
       "invalid_network_app_name": "無效的網絡動作。",
-      "invalid_referral_code": "無效的推薦代碼"
+      "invalid_referral_code": "無效的推薦代碼",
+      "duplicate_email": "該電子郵件已註冊",
+      "duplicate_username": "用戶名已被其他使用者使用"
     },
     "wallets": {
       "emptyTransferAmount": "請輸入有效轉帳金額。",