feat(payment_methods): bank details support for payment method data in pmt (#2385)

crates/api_models/src/payment_methods.rs

@@ -147,6 +147,7 @@ pub struct PaymentMethodResponse {
 #[derive(Clone, Debug, Eq, PartialEq, serde::Deserialize, serde::Serialize)]
 pub enum PaymentMethodsData {
     Card(CardDetailsPaymentMethod),
+    BankDetails(PaymentMethodDataBankCreds),
 }
 #[derive(Clone, Debug, Eq, PartialEq, serde::Deserialize, serde::Serialize)]
 pub struct CardDetailsPaymentMethod {
@@ -158,6 +159,25 @@ pub struct CardDetailsPaymentMethod {
     pub card_holder_name: Option<masking::Secret<String>>,
 }
 
+#[derive(Debug, Clone, Eq, PartialEq, serde::Serialize, serde::Deserialize)]
+pub struct PaymentMethodDataBankCreds {
+    pub mask: String,
+    pub hash: String,
+    pub payment_method_type: api_enums::PaymentMethodType,
+    pub connector_details: Vec<BankAccountConnectorDetails>,
+}
+
+#[derive(Debug, Clone, Eq, PartialEq, serde::Serialize, serde::Deserialize)]
+pub struct BankAccountConnectorDetails {
+    pub connector: String,
+    pub account_id: String,
+    pub access_token: BankAccountAccessCreds,
+}
+
+#[derive(Debug, Clone, Eq, PartialEq, serde::Serialize, serde::Deserialize)]
+pub enum BankAccountAccessCreds {
+    AccessToken(String),
+}
 #[derive(Debug, serde::Deserialize, serde::Serialize, Clone, ToSchema)]
 pub struct CardDetailFromLocker {
     pub scheme: Option<String>,

crates/diesel_models/src/payment_method.rs

@@ -99,13 +99,19 @@ pub struct TokenizeCoreWorkflow {
 
 #[derive(Debug, Serialize, Deserialize)]
 pub enum PaymentMethodUpdate {
-    MetadataUpdate { metadata: Option<serde_json::Value> },
+    MetadataUpdate {
+        metadata: Option<serde_json::Value>,
+    },
+    PaymentMethodDataUpdate {
+        payment_method_data: Option<Encryption>,
+    },
 }
 
 #[derive(Clone, Debug, Default, AsChangeset, router_derive::DebugAsDisplay)]
 #[diesel(table_name = payment_methods)]
 pub struct PaymentMethodUpdateInternal {
     metadata: Option<serde_json::Value>,
+    payment_method_data: Option<Encryption>,
 }
 
 impl PaymentMethodUpdateInternal {
@@ -119,7 +125,16 @@ impl PaymentMethodUpdateInternal {
 impl From<PaymentMethodUpdate> for PaymentMethodUpdateInternal {
     fn from(payment_method_update: PaymentMethodUpdate) -> Self {
         match payment_method_update {
-            PaymentMethodUpdate::MetadataUpdate { metadata } => Self { metadata },
+            PaymentMethodUpdate::MetadataUpdate { metadata } => Self {
+                metadata,
+                payment_method_data: None,
+            },
+            PaymentMethodUpdate::PaymentMethodDataUpdate {
+                payment_method_data,
+            } => Self {
+                metadata: None,
+                payment_method_data,
+            },
         }
     }
 }

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

@@ -1954,8 +1954,9 @@ async fn get_card_details(
             .flatten()
             .map(|x| x.into_inner().expose())
             .and_then(|v| serde_json::from_value::<PaymentMethodsData>(v).ok())
-            .map(|pmd| match pmd {
+            .and_then(|pmd| match pmd {
-                PaymentMethodsData::Card(crd) => api::CardDetailFromLocker::from(crd),
+                PaymentMethodsData::Card(crd) => Some(api::CardDetailFromLocker::from(crd)),
+                _ => None,
             });
 
     Ok(Some(