feat(apple_pay): add support for pre decrypted apple pay token (#2056)

Co-authored-by: Sangamesh <sangamesh.kulkarni@juspay.in>

crates/api_models/src/payments.rs

@@ -2363,8 +2363,15 @@ pub struct ApplepayConnectorMetadataRequest {
 
 #[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
 pub struct ApplepaySessionTokenData {
-    #[serde(rename = "apple_pay")]
-    pub data: ApplePayMetadata,
+    #[serde(flatten)]
+    pub data: ApplepaySessionTokenMetadata,
+}
+
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum ApplepaySessionTokenMetadata {
+    ApplePayCombined(ApplePayCombinedMetadata),
+    ApplePay(ApplePayMetadata),
 }
 
 #[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
@@ -2373,6 +2380,19 @@ pub struct ApplePayMetadata {
     pub session_token_data: SessionTokenInfo,
 }
 
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
+#[serde(rename_all = "snake_case")]
+pub enum ApplePayCombinedMetadata {
+    Simplified {
+        payment_request_data: PaymentRequestMetadata,
+        session_token_data: SessionTokenForSimplifiedApplePay,
+    },
+    Manual {
+        payment_request_data: PaymentRequestMetadata,
+        session_token_data: SessionTokenInfo,
+    },
+}
+
 #[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
 pub struct PaymentRequestMetadata {
     pub supported_networks: Vec<String>,
@@ -2390,6 +2410,11 @@ pub struct SessionTokenInfo {
     pub initiative_context: String,
 }
 
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, ToSchema)]
+pub struct SessionTokenForSimplifiedApplePay {
+    pub initiative_context: String,
+}
+
 #[derive(Debug, Clone, Eq, PartialEq, serde::Serialize, ToSchema)]
 #[serde(tag = "wallet_name")]
 #[serde(rename_all = "snake_case")]