feat: add init endpoint

mappings/init.jsonata

+$.data.message.orders.{
+        "context": $context(%.%.context, $action),
+        "message": {
+            "order": $
+        }
+}[]

mappings/on_init.jsonata

+$.responses.{   
+    "context":context,
+    "message": {
+        "order": {
+            "type": message.order.type,
+            "provider": {
+                "id": message.order.provider.id,
+                "name": message.order.provider.descriptor.name,
+                "short_desc": message.order.provider.descriptor.short_desc,
+                "long_desc": message.order.provider.descriptor.long_desc,
+                "rating": message.order.provider.rating,
+                "images": message.order.provider.descriptor.images.{
+                    "url": url,
+                    "size_type": size_type
+                },
+                "media": message.order.provider.descriptor.media.{
+                    "url": url
+                }
+            },
+            "items": message.order.items.{
+                "id": id,
+                "name": descriptor.name,
+                "short_desc": descriptor.short_desc,
+                "long_desc": descriptor.long_desc,
+                "price": price,
+                "rating": rating,
+                "rateable": rateable,
+                "time": time,
+                "quantity": quantity,
+                "categories": $map(
+                    $filter(%.provider.categories, function($category) { $boolean($category.id in category_ids)}),
+                    function($category) {
+                        { "id": $category.id, "name": $category.descriptor.name, "code": $category.descriptor.code }
+                    }
+                )[],
+                "locations": $map(
+                    $filter(%.provider.locations, function($location) { $boolean($location.id in location_ids)}),
+                    function($location) { 
+                        {
+                            "id": $location.id,
+                            "city": $location.city.name,
+                            "state": $location.state.name,
+                            "country": $location.country.name
+                        }
+                    }
+                )[],
+                "tags": tags.{
+                    "code": descriptor.code,
+                    "name": descriptor.name,
+                    "display": display,
+                    "list": list.{ "code": descriptor.code, "name": descriptor.name, "value": value }[]
+                }[]
+            },
+            "fulfillments": message.order.fulfillments,
+            "quote": message.order.quote,
+            "billing": message.order.billing,
+            "payments": message.order.payments,
+            "cancellation_terms": message.order.cancellation_terms
+        }
+    }
+}[]

src/gcl/gcl.service.ts

@@ -26,13 +26,11 @@ export class GCLService {
     }
 
     async init(body: any) {
-        // const payload = await this.tlService.transform(body, "select");
-        // const psResponse = await this.psClientService.postMany(payload);
-        // const response = await this.tlService.transform(psResponse, "on_select");
-
-        // return response;
+        const payload = await this.tlService.transform(body, "init");
+        const psResponse = await this.psClientService.postMany(payload);
+        const response = await this.tlService.transform(psResponse, "on_init");
 
-        return "In Progress";
+        return response;
     }
 
     async confirm(body: any) {