fix(payment_methods): populate card fields while saving card again during metadata change condition (#5019)

Author: Chethan-rao

crates/router/src/core/payment_methods/cards.rs

@@ -653,20 +653,20 @@ pub async fn add_payment_method(
                     };
 
                     let updated_card = Some(api::CardDetailFromLocker {
-                        scheme: None,
+                        scheme: existing_pm.scheme.clone(),
                         last4_digits: Some(card.card_number.get_last4()),
-                        issuer_country: None,
+                        issuer_country: card.card_issuing_country,
+                        card_isin: Some(card.card_number.get_card_isin()),
                         card_number: Some(card.card_number),
                         expiry_month: Some(card.card_exp_month),
                         expiry_year: Some(card.card_exp_year),
                         card_token: None,
                         card_fingerprint: None,
                         card_holder_name: card.card_holder_name,
                         nick_name: card.nick_name,
-                        card_network: None,
-                        card_isin: None,
-                        card_issuer: None,
-                        card_type: None,
+                        card_network: card.card_network,
+                        card_issuer: card.card_issuer,
+                        card_type: card.card_type,
                         saved_to_locker: true,
                     });
 

crates/router/src/core/payment_methods/transformers.rs

@@ -346,7 +346,7 @@ pub fn mk_add_card_response_hs(
     let card = api::CardDetailFromLocker {
         scheme: None,
         last4_digits: Some(last4_digits),
-        issuer_country: None,
+        issuer_country: card.card_issuing_country,
         card_number: Some(card.card_number.clone()),
         expiry_month: Some(card.card_exp_month.clone()),
         expiry_year: Some(card.card_exp_year.clone()),

crates/router/src/core/payments/tokenization.rs

@@ -469,20 +469,20 @@ where
                                 };
 
                                 let updated_card = Some(CardDetailFromLocker {
-                                    scheme: None,
+                                    scheme: existing_pm.scheme.clone(),
                                     last4_digits: Some(card.card_number.get_last4()),
-                                    issuer_country: None,
+                                    issuer_country: card.card_issuing_country,
+                                    card_isin: Some(card.card_number.get_card_isin()),
                                     card_number: Some(card.card_number),
                                     expiry_month: Some(card.card_exp_month),
                                     expiry_year: Some(card.card_exp_year),
                                     card_token: None,
                                     card_fingerprint: None,
                                     card_holder_name: card.card_holder_name,
                                     nick_name: card.nick_name,
-                                    card_network: None,
-                                    card_isin: None,
-                                    card_issuer: None,
-                                    card_type: None,
+                                    card_network: card.card_network,
+                                    card_issuer: card.card_issuer,
+                                    card_type: card.card_type,
                                     saved_to_locker: true,
                                 });