fix(router): add config to avoid connector tokenization for apple pay simplified flow (#3234)

Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>

crates/router/src/configs/settings.rs

@@ -287,6 +287,15 @@ pub struct PaymentMethodTokenFilter {
     pub payment_method: HashSet<diesel_models::enums::PaymentMethod>,
     pub payment_method_type: Option<PaymentMethodTypeTokenFilter>,
     pub long_lived_token: bool,
+    pub apple_pay_pre_decrypt_flow: Option<ApplePayPreDecryptFlow>,
+}
+
+#[derive(Debug, Deserialize, Clone, Default)]
+#[serde(deny_unknown_fields, rename_all = "snake_case")]
+pub enum ApplePayPreDecryptFlow {
+    #[default]
+    ConnectorTokenization,
+    NetworkTokenization,
 }
 
 #[derive(Debug, Deserialize, Clone, Default)]

crates/router/src/core/payments.rs

@@ -44,7 +44,7 @@ use super::{errors::StorageErrorExt, payment_methods::surcharge_decision_configs
 #[cfg(feature = "frm")]
 use crate::core::fraud_check as frm_core;
 use crate::{
-    configs::settings::PaymentMethodTypeTokenFilter,
+    configs::settings::{ApplePayPreDecryptFlow, PaymentMethodTypeTokenFilter},
     core::{
         errors::{self, CustomResult, RouterResponse, RouterResult},
         payment_methods::PaymentMethodRetrieve,
@@ -1582,6 +1582,7 @@ fn is_payment_method_tokenization_enabled_for_connector(
     connector_name: &str,
     payment_method: &storage::enums::PaymentMethod,
     payment_method_type: &Option<storage::enums::PaymentMethodType>,
+    apple_pay_flow: &Option<enums::ApplePayFlow>,
 ) -> RouterResult<bool> {
     let connector_tokenization_filter = state.conf.tokenization.0.get(connector_name);
 
@@ -1595,13 +1596,35 @@ fn is_payment_method_tokenization_enabled_for_connector(
                     payment_method_type,
                     connector_filter.payment_method_type.clone(),
                 )
+                && is_apple_pay_pre_decrypt_type_connector_tokenization(
+                    payment_method_type,
+                    apple_pay_flow,
+                    connector_filter.apple_pay_pre_decrypt_flow.clone(),
+                )
         })
         .unwrap_or(false))
 }
 
+fn is_apple_pay_pre_decrypt_type_connector_tokenization(
+    payment_method_type: &Option<storage::enums::PaymentMethodType>,
+    apple_pay_flow: &Option<enums::ApplePayFlow>,
+    apple_pay_pre_decrypt_flow_filter: Option<ApplePayPreDecryptFlow>,
+) -> bool {
+    match (payment_method_type, apple_pay_flow) {
+        (
+            Some(storage::enums::PaymentMethodType::ApplePay),
+            Some(enums::ApplePayFlow::Simplified),
+        ) => !matches!(
+            apple_pay_pre_decrypt_flow_filter,
+            Some(ApplePayPreDecryptFlow::NetworkTokenization)
+        ),
+        _ => true,
+    }
+}
+
 fn decide_apple_pay_flow(
     payment_method_type: &Option<api_models::enums::PaymentMethodType>,
-    merchant_connector_account: &Option<helpers::MerchantConnectorAccountType>,
+    merchant_connector_account: Option<&helpers::MerchantConnectorAccountType>,
 ) -> Option<enums::ApplePayFlow> {
     payment_method_type.and_then(|pmt| match pmt {
         api_models::enums::PaymentMethodType::ApplePay => {
@@ -1612,9 +1635,9 @@ fn decide_apple_pay_flow(
 }
 
 fn check_apple_pay_metadata(
-    merchant_connector_account: &Option<helpers::MerchantConnectorAccountType>,
+    merchant_connector_account: Option<&helpers::MerchantConnectorAccountType>,
 ) -> Option<enums::ApplePayFlow> {
-    merchant_connector_account.clone().and_then(|mca| {
+    merchant_connector_account.and_then(|mca| {
         let metadata = mca.get_metadata();
         metadata.and_then(|apple_pay_metadata| {
             let parsed_metadata = apple_pay_metadata
@@ -1785,19 +1808,18 @@ where
                 .get_required_value("payment_method")?;
             let payment_method_type = &payment_data.payment_attempt.payment_method_type;
 
+            let apple_pay_flow =
+                decide_apple_pay_flow(payment_method_type, Some(merchant_connector_account));
+
             let is_connector_tokenization_enabled =
                 is_payment_method_tokenization_enabled_for_connector(
                     state,
                     &connector,
                     payment_method,
                     payment_method_type,
+                    &apple_pay_flow,
                 )?;
 
-            let apple_pay_flow = decide_apple_pay_flow(
-                payment_method_type,
-                &Some(merchant_connector_account.clone()),
-            );
-
             add_apple_pay_flow_metrics(
                 &apple_pay_flow,
                 payment_data.payment_attempt.connector.clone(),

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

@@ -118,7 +118,7 @@ where
 
     let apple_pay_flow = payments::decide_apple_pay_flow(
         &payment_data.payment_attempt.payment_method_type,
-        &Some(merchant_connector_account.clone()),
+        Some(merchant_connector_account),
     );
 
     router_data = types::RouterData {