feat(payments): Add audit events for PaymentUpdate update (#6426)

Author: Rutam21

crates/router/src/core/payments/operations/payment_update.rs

@@ -25,6 +25,7 @@ use crate::{
         payments::{self, helpers, operations, CustomerDetails, PaymentAddress, PaymentData},
         utils as core_utils,
     },
+    events::audit_events::{AuditEvent, AuditEventType},
     routes::{app::ReqState, SessionState},
     services,
     types::{
@@ -694,7 +695,7 @@ impl<F: Clone> UpdateTracker<F, PaymentData<F>, api::PaymentsRequest> for Paymen
     async fn update_trackers<'b>(
         &'b self,
         _state: &'b SessionState,
-        _req_state: ReqState,
+        req_state: ReqState,
         mut _payment_data: PaymentData<F>,
         _customer: Option<domain::Customer>,
         _storage_scheme: storage_enums::MerchantStorageScheme,
@@ -714,7 +715,7 @@ impl<F: Clone> UpdateTracker<F, PaymentData<F>, api::PaymentsRequest> for Paymen
     async fn update_trackers<'b>(
         &'b self,
         state: &'b SessionState,
-        _req_state: ReqState,
+        req_state: ReqState,
         mut payment_data: PaymentData<F>,
         customer: Option<domain::Customer>,
         storage_scheme: storage_enums::MerchantStorageScheme,
@@ -925,6 +926,12 @@ impl<F: Clone> UpdateTracker<F, PaymentData<F>, api::PaymentsRequest> for Paymen
             )
             .await
             .to_not_found_response(errors::ApiErrorResponse::PaymentNotFound)?;
+        let amount = payment_data.amount;
+        req_state
+            .event_context
+            .event(AuditEvent::new(AuditEventType::PaymentUpdate { amount }))
+            .with(payment_data.to_event())
+            .emit();
 
         Ok((
             payments::is_confirm(self, payment_data.confirm),

crates/router/src/events/audit_events.rs

@@ -1,3 +1,4 @@
+use api_models::payments::Amount;
 use common_utils::types::MinorUnit;
 use diesel_models::fraud_check::FraudCheck;
 use events::{Event, EventInfo};
@@ -27,6 +28,9 @@ pub enum AuditEventType {
         capture_amount: Option<MinorUnit>,
         multiple_capture_count: Option<i16>,
     },
+    PaymentUpdate {
+        amount: Amount,
+    },
     PaymentApprove,
     PaymentCreate,
 }
@@ -67,6 +71,7 @@ impl Event for AuditEvent {
             AuditEventType::RefundSuccess => "refund_success",
             AuditEventType::RefundFail => "refund_fail",
             AuditEventType::PaymentCancelled { .. } => "payment_cancelled",
+            AuditEventType::PaymentUpdate { .. } => "payment_update",
             AuditEventType::PaymentApprove { .. } => "payment_approve",
             AuditEventType::PaymentCreate { .. } => "payment_create",
         };