feat: Fulfillment module basic structure (#6319)

**What**
Scafold the fulfillment module basic structure

**Bonus**
Simplified module scaffolding with new factories and less directories to manage
- mikro orm connection loader factory
- initialize factory

FIXES CORE-1709
FIXES CORE-1710

packages/modules-sdk/src/definitions.ts

@@ -19,6 +19,7 @@ export enum Modules {
   PRODUCT = "productService",
   PROMOTION = "promotion",
   SALES_CHANNEL = "salesChannel",
+  FULFILLMENT = "fulfillment",
   STOCK_LOCATION = "stockLocationService",
   USER = "user",
   WORKFLOW_ENGINE = "workflows",
@@ -37,6 +38,7 @@ export enum ModuleRegistrationName {
   PRODUCT = "productModuleService",
   PROMOTION = "promotionModuleService",
   SALES_CHANNEL = "salesChannelModuleService",
+  FULFILLMENT = "fulfillmentModuleService",
   STOCK_LOCATION = "stockLocationService",
   USER = "userModuleService",
   WORKFLOW_ENGINE = "workflowsModuleService",
@@ -56,6 +58,7 @@ export const MODULE_PACKAGE_NAMES = {
   [Modules.PRODUCT]: "@medusajs/product",
   [Modules.PROMOTION]: "@medusajs/promotion",
   [Modules.SALES_CHANNEL]: "@medusajs/sales-channel",
+  [Modules.FULFILLMENT]: "@medusajs/fulfillment",
   [Modules.STOCK_LOCATION]: "@medusajs/stock-location",
   [Modules.USER]: "@medusajs/user",
   [Modules.WORKFLOW_ENGINE]: "@medusajs/workflow-engine-inmemory",
@@ -195,6 +198,19 @@ export const ModulesDefinition: { [key: string | Modules]: ModuleDefinition } =
         resources: MODULE_RESOURCE_TYPE.SHARED,
       },
     },
+    [Modules.FULFILLMENT]: {
+      key: Modules.FULFILLMENT,
+      registrationName: ModuleRegistrationName.FULFILLMENT,
+      defaultPackage: false,
+      label: upperCaseFirst(ModuleRegistrationName.FULFILLMENT),
+      isRequired: false,
+      isQueryable: true,
+      dependencies: ["logger", "eventBusService"],
+      defaultModuleDeclaration: {
+        scope: MODULE_SCOPE.INTERNAL,
+        resources: MODULE_RESOURCE_TYPE.SHARED,
+      },
+    },
     [Modules.CART]: {
       key: Modules.CART,
       registrationName: ModuleRegistrationName.CART,

packages/modules-sdk/src/index.ts

@@ -5,4 +5,4 @@ export * from "./medusa-app"
 export * from "./medusa-module"
 export * from "./remote-link"
 export * from "./remote-query"
-
+export * from "./utils/initialize-factory"

packages/modules-sdk/src/utils/index.ts

@@ -1,2 +1,3 @@
 export * from "./clean-graphql-schema"
 export * from "./graphql-schema-to-fields"
+export * from "./initialize-factory"

packages/modules-sdk/src/utils/initialize-factory.ts

@@ -0,0 +1,44 @@
+import {
+  ExternalModuleDeclaration,
+  InternalModuleDeclaration,
+  ModuleExports,
+  ModuleServiceInitializeCustomDataLayerOptions,
+  ModuleServiceInitializeOptions,
+} from "@medusajs/types"
+import { MODULE_PACKAGE_NAMES } from "../definitions"
+import { MedusaModule } from "../medusa-module"
+
+/**
+ * Generate a initialize module factory that is exported by the module to be initialized manually
+ *
+ * @param moduleName
+ * @param moduleDefinition
+ */
+export function initializeFactory<T>({
+  moduleName,
+  moduleDefinition,
+}: {
+  moduleName: string
+  moduleDefinition: ModuleExports
+}) {
+  return async (
+    options?:
+      | ModuleServiceInitializeOptions
+      | ModuleServiceInitializeCustomDataLayerOptions
+      | ExternalModuleDeclaration
+      | InternalModuleDeclaration,
+    injectedDependencies?: any
+  ) => {
+    const loaded = await MedusaModule.bootstrap<T>({
+      moduleKey: moduleName,
+      defaultPath: MODULE_PACKAGE_NAMES[moduleName],
+      declaration: options as
+        | InternalModuleDeclaration
+        | ExternalModuleDeclaration,
+      injectedDependencies,
+      moduleExports: moduleDefinition,
+    })
+
+    return loaded[moduleName] as T
+  }
+}