refactor(connector): add amount conversion framework for ACI (#5456)

crates/router/src/connector/aci.rs

@@ -1,13 +1,15 @@
 mod result_codes;
 pub mod transformers;
-use std::fmt::Debug;
 
-use common_utils::request::RequestContent;
+use common_utils::{
+    request::RequestContent,
+    types::{AmountConvertor, StringMajorUnit, StringMajorUnitForConnector},
+};
 use error_stack::{report, ResultExt};
 use masking::PeekInterface;
 use transformers as aci;
 
-use super::utils::{is_mandate_supported, PaymentsAuthorizeRequestData};
+use super::utils::{convert_amount, is_mandate_supported, PaymentsAuthorizeRequestData};
 use crate::{
     configs::settings,
     connector::utils::PaymentMethodDataType,
@@ -26,8 +28,18 @@ use crate::{
     utils::BytesExt,
 };
 
-#[derive(Debug, Clone)]
-pub struct Aci;
+#[derive(Clone)]
+pub struct Aci {
+    amount_converter: &'static (dyn AmountConvertor<Output = StringMajorUnit> + Sync),
+}
+
+impl Aci {
+    pub fn new() -> &'static Self {
+        &Self {
+            amount_converter: &StringMajorUnitForConnector,
+        }
+    }
+}
 
 impl ConnectorCommon for Aci {
     fn id(&self) -> &'static str {
@@ -312,12 +324,14 @@ impl
         _connectors: &settings::Connectors,
     ) -> CustomResult<RequestContent, errors::ConnectorError> {
         // encode only for for urlencoded things.
-        let connector_router_data = aci::AciRouterData::try_from((
-            &self.get_currency_unit(),
+
+        let amount = convert_amount(
+            self.amount_converter,
+            req.request.minor_amount,
             req.request.currency,
-            req.request.amount,
-            req,
-        ))?;
+        )?;
+
+        let connector_router_data = aci::AciRouterData::from((amount, req));
         let connector_req = aci::AciPaymentsRequest::try_from(&connector_router_data)?;
 
         Ok(RequestContent::FormUrlEncoded(Box::new(connector_req)))
@@ -514,12 +528,13 @@ impl services::ConnectorIntegration<api::Execute, types::RefundsData, types::Ref
         req: &types::RefundsRouterData<api::Execute>,
         _connectors: &settings::Connectors,
     ) -> CustomResult<RequestContent, errors::ConnectorError> {
-        let connector_router_data = aci::AciRouterData::try_from((
-            &self.get_currency_unit(),
+        let amount = convert_amount(
+            self.amount_converter,
+            req.request.minor_refund_amount,
             req.request.currency,
-            req.request.refund_amount,
-            req,
-        ))?;
+        )?;
+
+        let connector_router_data = aci::AciRouterData::from((amount, req));
         let connector_req = aci::AciRefundRequest::try_from(&connector_router_data)?;
         Ok(RequestContent::FormUrlEncoded(Box::new(connector_req)))
     }

crates/router/src/connector/aci/transformers.rs

@@ -1,6 +1,6 @@
 use std::str::FromStr;
 
-use common_utils::{id_type, pii::Email};
+use common_utils::{id_type, pii::Email, types::StringMajorUnit};
 use error_stack::report;
 use masking::{ExposeInterface, Secret};
 use reqwest::Url;
@@ -18,26 +18,16 @@ type Error = error_stack::Report<errors::ConnectorError>;
 
 #[derive(Debug, Serialize)]
 pub struct AciRouterData<T> {
-    amount: String,
+    amount: StringMajorUnit,
     router_data: T,
 }
 
-impl<T> TryFrom<(&types::api::CurrencyUnit, enums::Currency, i64, T)> for AciRouterData<T> {
-    type Error = error_stack::Report<errors::ConnectorError>;
-
-    fn try_from(
-        (currency_unit, currency, amount, item): (
-            &types::api::CurrencyUnit,
-            enums::Currency,
-            i64,
-            T,
-        ),
-    ) -> Result<Self, Self::Error> {
-        let amount = utils::get_amount_as_string(currency_unit, amount, currency)?;
-        Ok(Self {
+impl<T> From<(StringMajorUnit, T)> for AciRouterData<T> {
+    fn from((amount, item): (StringMajorUnit, T)) -> Self {
+        Self {
             amount,
             router_data: item,
-        })
+        }
     }
 }
 
@@ -76,7 +66,7 @@ pub struct AciPaymentsRequest {
 #[serde(rename_all = "camelCase")]
 pub struct TransactionDetails {
     pub entity_id: Secret<String>,
-    pub amount: String,
+    pub amount: StringMajorUnit,
     pub currency: String,
     pub payment_type: AciPaymentType,
 }
@@ -786,7 +776,7 @@ impl<F, T>
 #[derive(Default, Debug, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct AciRefundRequest {
-    pub amount: String,
+    pub amount: StringMajorUnit,
     pub currency: String,
     pub payment_type: AciPaymentType,
     pub entity_id: Secret<String>,

crates/router/src/types/api.rs

@@ -306,7 +306,7 @@ impl ConnectorData {
     ) -> CustomResult<ConnectorEnum, errors::ApiErrorResponse> {
         match enums::Connector::from_str(connector_name) {
             Ok(name) => match name {
-                enums::Connector::Aci => Ok(ConnectorEnum::Old(Box::new(&connector::Aci))),
+                enums::Connector::Aci => Ok(ConnectorEnum::Old(Box::new(connector::Aci::new()))),
                 enums::Connector::Adyen => {
                     Ok(ConnectorEnum::Old(Box::new(connector::Adyen::new())))
                 }