Add get-page operator

Signed-off-by: Chloe <pinkcloudvnn@gmail.com>

packages/opencommerce/src/api/operations/get-page.ts

@@ -1,11 +1,30 @@
-export type Page = any
-export type GetPageResult = { page?: Page }
+import type {
+  OperationContext,
+  OperationOptions,
+} from '@vercel/commerce/api/operations'
+import { GetPageOperation } from '../../types/page'
+import { Provider, OpenCommerceConfig } from '..'
 
-export type PageVariables = {
-  id: number
-}
+type Page = any
+type GetPageResult = { page?: Page }
+
+export default function getPageOperation({
+  commerce,
+}: OperationContext<Provider>) {
+  async function getPage<T extends GetPageOperation>(opts: {
+    variables: T['variables']
+    config?: Partial<OpenCommerceConfig>
+    preview?: boolean
+  }): Promise<T['data']>
+
+  async function getPage<T extends GetPageOperation>(
+    opts: {
+      variables: T['variables']
+      config?: Partial<OpenCommerceConfig>
+      preview?: boolean
+    } & OperationOptions
+  ): Promise<T['data']>
 
-export default function getPageOperation() {
   function getPage(): Promise<GetPageResult> {
     return Promise.resolve({})
   }