fix(medusa-plugin-sendgrid): Inject GiftCardService to eliminate undefined error (#2941)

.changeset/four-eggs-give.md

@@ -0,0 +1,5 @@
+---
+"medusa-plugin-sendgrid": minor
+---
+
+fix(medusa-plugin-sendgrid): Inject GiftCardService to eliminate undefined error

docs/content/add-plugins/sendgrid.mdx

@@ -3608,8 +3608,9 @@ You don’t have to create a template for every type in the reference. You can s
   ```json noReport
   Object {
     "code": Any<String>,
-    "value": 4,
+    "value": 100,
     "balance": 100,
+    "display_value": "100.00",
     "region": Object {
       "automatic_taxes": true,
       "created_at": Any<Date>,
@@ -3937,7 +3938,7 @@ const plugins = [
       order_placed_template: process.env.SENDGRID_ORDER_PLACED_ID,
       localization: {
         "de-DE": { // locale key
-          order_placed_template: 
+          order_placed_template:
             process.env.SENDGRID_ORDER_PLACED_ID_LOCALIZED,
         },
       },

packages/medusa-plugin-sendgrid/src/services/sendgrid.js

@@ -31,6 +31,7 @@ class SendGridService extends NotificationService {
       fulfillmentProviderService,
       totalsService,
       productVariantService,
+      giftCardService,
     },
     options
   ) {
@@ -49,6 +50,7 @@ class SendGridService extends NotificationService {
     this.fulfillmentService_ = fulfillmentService
     this.totalsService_ = totalsService
     this.productVariantService_ = productVariantService
+    this.giftCardService_ = giftCardService
 
     SendGrid.setApiKey(options.api_key)
   }
@@ -579,20 +581,16 @@ class SendGridService extends NotificationService {
     const giftCard = await this.giftCardService_.retrieve(id, {
       relations: ["region", "order"],
     })
-
-    if (!giftCard.order) {
-      return
-    }
-
     const taxRate = giftCard.region.tax_rate / 100
-
-    const locale = await this.extractLocale(order)
+    const locale = giftCard.order ? await this.extractLocale(order) : null;
+    const email = giftCard.order ? giftCard.order.email : giftCard.metadata.email;
 
     return {
       ...giftCard,
       locale,
-      email: giftCard.order.email,
-      display_value: giftCard.value * (1 + taxRate),
+      email,
+      display_value: `${this.humanPrice_((giftCard.value * 1+ taxRate), giftCard.region.currency_code)} ${giftCard.region.currency_code}`,
+      message: giftCard.metadata?.message || giftCard.metadata?.personal_message
     }
   }