feat: amazonPay

Author: Abhishek Chorotiya

src/Payments/AmazonPay/AmazonPayHelpers.res

@@ -109,3 +109,46 @@ let getShippingAddressFromEvent = event => {
     phone: {number: phoneNumber},
   }
 }
+
+let handleOnInitCheckout = (
+  event,
+  shippingAddressRef: React.ref<shipping>,
+  defaultShippingAmount,
+  currencyCode,
+  sessionToken: amazonPayTokenType,
+  totalOrderAmount,
+) => {
+  shippingAddressRef.current = event->getShippingAddressFromEvent
+
+  {
+    totalShippingAmount: {amount: defaultShippingAmount, currencyCode},
+    totalBaseAmount: {amount: sessionToken.totalBaseAmount, currencyCode},
+    totalTaxAmount: {amount: sessionToken.totalTaxAmount, currencyCode},
+    totalChargeAmount: {amount: totalOrderAmount, currencyCode},
+    totalDiscountAmount: {amount: "0.00", currencyCode},
+    deliveryOptions: sessionToken.deliveryOptions,
+  }
+}
+
+// Shared function for onInitCheckout and onShippingAddressSelection
+// Both handlers return identical values with updated shipping address
+let handleOnShippingAddressSelection = handleOnInitCheckout
+
+let handleOnDeliveryOptionSelection = (event, currencyCode, sessionToken: amazonPayTokenType) => {
+  let selectedOption =
+    sessionToken.deliveryOptions->Array.find(option => option.id === event.deliveryOptions.id)
+
+  let newShippingAmount = selectedOption->Option.mapOr("0.0", option => option.price.amount)
+  let baseAmount = sessionToken.totalBaseAmount->Float.fromString->Option.getOr(0.0)
+  let taxAmount = sessionToken.totalTaxAmount->Float.fromString->Option.getOr(0.0)
+  let shippingAmount = newShippingAmount->Float.fromString->Option.getOr(0.0)
+  let newTotalAmount = (baseAmount +. taxAmount +. shippingAmount)->Float.toString
+
+  {
+    totalShippingAmount: {amount: newShippingAmount, currencyCode},
+    totalBaseAmount: {amount: sessionToken.totalBaseAmount, currencyCode},
+    totalTaxAmount: {amount: sessionToken.totalTaxAmount, currencyCode},
+    totalChargeAmount: {amount: newTotalAmount, currencyCode},
+    totalDiscountAmount: {amount: "0.00", currencyCode},
+  }
+}

src/Payments/AmazonPay/AmazonPayHooks.res

@@ -45,62 +45,40 @@ let useAmazonPay = token => {
           canHandlePendingAuthorization: false,
         },
       },
-      onInitCheckout: event => {
-        shippingAddressRef.current = event->getShippingAddressFromEvent
-
-        {
-          totalShippingAmount: {amount: defaultShippingAmount, currencyCode},
-          totalBaseAmount: {amount: sessionToken.totalBaseAmount, currencyCode},
-          totalTaxAmount: {amount: sessionToken.totalTaxAmount, currencyCode},
-          totalChargeAmount: {amount: totalOrderAmount, currencyCode},
-          totalDiscountAmount: {amount: "0.00", currencyCode},
-          deliveryOptions: sessionToken.deliveryOptions,
-        }
-      },
-      onShippingAddressSelection: event => {
-        shippingAddressRef.current = event->getShippingAddressFromEvent
-
-        {
-          totalShippingAmount: {amount: defaultShippingAmount, currencyCode},
-          totalBaseAmount: {amount: sessionToken.totalBaseAmount, currencyCode},
-          totalTaxAmount: {amount: sessionToken.totalTaxAmount, currencyCode},
-          totalChargeAmount: {amount: totalOrderAmount, currencyCode},
-          totalDiscountAmount: {amount: "0.00", currencyCode},
-          deliveryOptions: sessionToken.deliveryOptions,
-        }
-      },
-      onDeliveryOptionSelection: event => {
-        let selectedOption =
-          sessionToken.deliveryOptions->Array.find(option => option.id === event.deliveryOptions.id)
-        let newShippingAmount = selectedOption->Option.mapOr("0.0", option => option.price.amount)
-        let baseAmount = sessionToken.totalBaseAmount->Float.fromString->Option.getOr(0.0)
-        let taxAmount = sessionToken.totalTaxAmount->Float.fromString->Option.getOr(0.0)
-        let shippingAmount = newShippingAmount->Float.fromString->Option.getOr(0.0)
-        let newTotalAmount = (baseAmount +. taxAmount +. shippingAmount)->Float.toString
-
-        {
-          totalShippingAmount: {amount: newShippingAmount, currencyCode},
-          totalBaseAmount: {amount: sessionToken.totalBaseAmount, currencyCode},
-          totalTaxAmount: {amount: sessionToken.totalTaxAmount, currencyCode},
-          totalChargeAmount: {amount: newTotalAmount, currencyCode},
-          totalDiscountAmount: {amount: "0.00", currencyCode},
-        }
-      },
-      onCompleteCheckout: event => {
-        let amazonCheckoutSessionId =
-          event->getDictFromJson->getString("amazonCheckoutSessionId", "")
-
+      onInitCheckout: e =>
+        handleOnInitCheckout(
+          e,
+          shippingAddressRef,
+          defaultShippingAmount,
+          currencyCode,
+          sessionToken,
+          totalOrderAmount,
+        ),
+      onShippingAddressSelection: e =>
+        handleOnShippingAddressSelection(
+          e,
+          shippingAddressRef,
+          defaultShippingAmount,
+          currencyCode,
+          sessionToken,
+          totalOrderAmount,
+        ),
+      onDeliveryOptionSelection: e =>
+        handleOnDeliveryOptionSelection(e, currencyCode, sessionToken),
+      onCompleteCheckout: event =>
         intent(
-          ~bodyArr=amazonPayBody(amazonCheckoutSessionId, shippingAddressRef.current),
+          ~bodyArr=amazonPayBody(
+            event->getDictFromJson->getString("amazonCheckoutSessionId", ""),
+            shippingAddressRef.current,
+          ),
           ~confirmParam={
             return_url: options.wallets.walletReturnUrl,
             publishableKey,
           },
           ~handleUserError=true,
           ~manualRetry=isManualRetryEnabled,
-        )
-      },
-      onCancel: _ => {
+        ),
+      onCancel: _ =>
         intent(
           ~bodyArr=amazonPayBody("", shippingAddressRef.current),
           ~confirmParam={
@@ -109,8 +87,7 @@ let useAmazonPay = token => {
           },
           ~handleUserError=true,
           ~manualRetry=isManualRetryEnabled,
-        )
-      },
+        ),
     }
   }
 

src/Payments/AmazonPay/AmazonPayTypes.res

@@ -53,15 +53,6 @@ type amountDetails = {
   currencyCode: string,
 }
 
-type cartDetails = {
-  totalShippingAmount: amountDetails,
-  totalBaseAmount: amountDetails,
-  totalTaxAmount: amountDetails,
-  totalChargeAmount: amountDetails,
-  totalDiscountAmount: amountDetails,
-  deliveryOptions: array<deliveryOption>,
-}
-
 type shippingAddressResponse = {
   totalShippingAmount: amountDetails,
   totalBaseAmount: amountDetails,
@@ -93,7 +84,7 @@ type amazonPayConfigType = {
   buttonColor: string,
   estimatedOrderAmount: estimatedOrderAmount,
   checkoutSessionConfig: checkoutSessionConfig,
-  onInitCheckout: JSON.t => cartDetails,
+  onInitCheckout: JSON.t => shippingAddressResponse,
   onShippingAddressSelection: JSON.t => shippingAddressResponse,
   onDeliveryOptionSelection: deliveryOptionEvent => deliveryOptionResponse,
   onCompleteCheckout: JSON.t => unit,