refactor(core): update response for PaymentsDynamicTaxCalculationResp…

…onse (#5910)

api-reference-v2/openapi_spec.json

@@ -6212,6 +6212,28 @@
           "BRW"
         ]
       },
+      "DisplayAmountOnSdk": {
+        "type": "object",
+        "required": [
+          "net_amount",
+          "order_tax_amount",
+          "shipping_cost"
+        ],
+        "properties": {
+          "net_amount": {
+            "type": "string",
+            "description": "net amount = amount + order_tax_amount + shipping_cost"
+          },
+          "order_tax_amount": {
+            "type": "string",
+            "description": "order tax amount calculated by tax connectors"
+          },
+          "shipping_cost": {
+            "type": "string",
+            "description": "shipping cost for the order"
+          }
+        }
+      },
       "DisputeResponse": {
         "type": "object",
         "required": [
@@ -13537,7 +13559,8 @@
         "type": "object",
         "required": [
           "payment_id",
-          "net_amount"
+          "net_amount",
+          "display_amount"
         ],
         "properties": {
           "payment_id": {
@@ -13562,6 +13585,9 @@
               }
             ],
             "nullable": true
+          },
+          "display_amount": {
+            "$ref": "#/components/schemas/DisplayAmountOnSdk"
           }
         }
       },

api-reference/openapi_spec.json

@@ -9831,6 +9831,28 @@
           "BRW"
         ]
       },
+      "DisplayAmountOnSdk": {
+        "type": "object",
+        "required": [
+          "net_amount",
+          "order_tax_amount",
+          "shipping_cost"
+        ],
+        "properties": {
+          "net_amount": {
+            "type": "string",
+            "description": "net amount = amount + order_tax_amount + shipping_cost"
+          },
+          "order_tax_amount": {
+            "type": "string",
+            "description": "order tax amount calculated by tax connectors"
+          },
+          "shipping_cost": {
+            "type": "string",
+            "description": "shipping cost for the order"
+          }
+        }
+      },
       "DisputeResponse": {
         "type": "object",
         "required": [
@@ -17535,7 +17557,8 @@
         "type": "object",
         "required": [
           "payment_id",
-          "net_amount"
+          "net_amount",
+          "display_amount"
         ],
         "properties": {
           "payment_id": {
@@ -17560,6 +17583,9 @@
               }
             ],
             "nullable": true
+          },
+          "display_amount": {
+            "$ref": "#/components/schemas/DisplayAmountOnSdk"
           }
         }
       },

crates/api_models/src/payments.rs

@@ -4619,6 +4619,21 @@ pub struct PaymentsDynamicTaxCalculationResponse {
     pub order_tax_amount: Option<MinorUnit>,
     /// shipping cost for the order
     pub shipping_cost: Option<MinorUnit>,
+    /// amount in Base Unit display format
+    pub display_amount: DisplayAmountOnSdk,
+}
+
+#[derive(Debug, serde::Serialize, serde::Deserialize, Clone, ToSchema)]
+pub struct DisplayAmountOnSdk {
+    /// net amount = amount + order_tax_amount + shipping_cost
+    #[schema(value_type = String)]
+    pub net_amount: StringMajorUnit,
+    /// order tax amount calculated by tax connectors
+    #[schema(value_type = String)]
+    pub order_tax_amount: Option<StringMajorUnit>,
+    /// shipping cost for the order
+    #[schema(value_type = String)]
+    pub shipping_cost: Option<StringMajorUnit>,
 }
 
 #[derive(Debug, Clone, Eq, PartialEq, serde::Serialize, serde::Deserialize, ToSchema)]

crates/openapi/src/openapi.rs

@@ -606,6 +606,7 @@ Never share your secret api keys. Keep them guarded and secure.
         api_models::payments::additional_info::UpiCollectAdditionalData,
         api_models::payments::PaymentsDynamicTaxCalculationRequest,
         api_models::payments::PaymentsDynamicTaxCalculationResponse,
+        api_models::payments::DisplayAmountOnSdk,
     )),
     modifiers(&SecurityAddon)
 )]

crates/openapi/src/openapi_v2.rs

@@ -522,6 +522,7 @@ Never share your secret api keys. Keep them guarded and secure.
         api_models::payments::additional_info::UpiCollectAdditionalData,
         api_models::payments::PaymentsDynamicTaxCalculationRequest,
         api_models::payments::PaymentsDynamicTaxCalculationResponse,
+        api_models::payments::DisplayAmountOnSdk,
     )),
     modifiers(&SecurityAddon)
 )]

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

@@ -4,8 +4,13 @@ use api_models::payments::{
     Address, CustomerDetails, CustomerDetailsResponse, FrmMessage, PaymentChargeRequest,
     PaymentChargeResponse, RequestSurchargeDetails,
 };
-use common_enums::RequestIncrementalAuthorization;
-use common_utils::{consts::X_HS_LATENCY, fp_utils, pii::Email, types::MinorUnit};
+use common_enums::{Currency, RequestIncrementalAuthorization};
+use common_utils::{
+    consts::X_HS_LATENCY,
+    fp_utils,
+    pii::Email,
+    types::{AmountConvertor, MinorUnit, StringMajorUnitForConnector},
+};
 use diesel_models::ephemeral_key;
 use error_stack::{report, ResultExt};
 use hyperswitch_domain_models::{payments::payment_intent::CustomerData, router_request_types};
@@ -503,18 +508,80 @@ where
             amount = amount + tax_amount;
         }
 
+        let currency = payment_data
+            .get_payment_attempt()
+            .currency
+            .get_required_value("currency")?;
+
         Ok(services::ApplicationResponse::JsonWithHeaders((
             Self {
                 net_amount: amount,
                 payment_id: payment_data.get_payment_attempt().payment_id.clone(),
                 order_tax_amount,
                 shipping_cost,
+                display_amount: api_models::payments::DisplayAmountOnSdk::foreign_try_from((
+                    amount,
+                    shipping_cost,
+                    order_tax_amount,
+                    currency,
+                ))?,
             },
             vec![],
         )))
     }
 }
 
+impl ForeignTryFrom<(MinorUnit, Option<MinorUnit>, Option<MinorUnit>, Currency)>
+    for api_models::payments::DisplayAmountOnSdk
+{
+    type Error = error_stack::Report<errors::ApiErrorResponse>;
+
+    fn foreign_try_from(
+        (net_amount, shipping_cost, order_tax_amount, currency): (
+            MinorUnit,
+            Option<MinorUnit>,
+            Option<MinorUnit>,
+            Currency,
+        ),
+    ) -> Result<Self, Self::Error> {
+        let major_unit_convertor = StringMajorUnitForConnector;
+
+        let sdk_net_amount = major_unit_convertor
+            .convert(net_amount, currency)
+            .change_context(errors::ApiErrorResponse::PreconditionFailed {
+                message: "Failed to convert net_amount to base unit".to_string(),
+            })
+            .attach_printable("Failed to convert net_amount to string major unit")?;
+
+        let sdk_shipping_cost = shipping_cost
+            .map(|cost| {
+                major_unit_convertor
+                    .convert(cost, currency)
+                    .change_context(errors::ApiErrorResponse::PreconditionFailed {
+                        message: "Failed to convert shipping_cost to base unit".to_string(),
+                    })
+                    .attach_printable("Failed to convert shipping_cost to string major unit")
+            })
+            .transpose()?;
+
+        let sdk_order_tax_amount = order_tax_amount
+            .map(|cost| {
+                major_unit_convertor
+                    .convert(cost, currency)
+                    .change_context(errors::ApiErrorResponse::PreconditionFailed {
+                        message: "Failed to convert order_tax_amount to base unit".to_string(),
+                    })
+                    .attach_printable("Failed to convert order_tax_amount to string major unit")
+            })
+            .transpose()?;
+        Ok(Self {
+            net_amount: sdk_net_amount,
+            shipping_cost: sdk_shipping_cost,
+            order_tax_amount: sdk_order_tax_amount,
+        })
+    }
+}
+
 impl<F, Op, D> ToResponse<F, D, Op> for api::VerifyResponse
 where
     F: Clone,