Remove deprecated print action target uniqueness validator

.changeset/beige-masks-joke.md

@@ -0,0 +1,5 @@
+---
+'@shopify/app': patch
+---
+
+Remove redundant Admin print action extension uniqueness validator

packages/app/src/cli/models/app/loader.test.ts

@@ -509,51 +509,6 @@ wrong = "property"
     await expect(loadTestingApp()).rejects.toThrow(/Duplicated handle/)
   })
 
-  test('throws an error if the app has more than one print action with the same target', async () => {
-    // Given
-    await writeConfig(appConfiguration)
-
-    const blockConfiguration = `
-      api_version = "2022-07"
-
-      [[extensions]]
-      type = "ui_extension"
-      name = "my_extension_1"
-      handle = "handle-1"
-      description = "custom description"
-
-      [[extensions.targeting]]
-      module = "./src/ActionExtension.js"
-      target = "admin.product-details.print-action.render"
-
-      [[extensions]]
-      type = "ui_extension"
-      handle = "handle-2"
-      name = "my_extension_2"
-      description = "custom description"
-
-      [[extensions.targeting]]
-      module = "./src/ActionExtension.js"
-      target = "admin.product-details.print-action.render"
-      `
-    await writeBlockConfig({
-      blockConfiguration,
-      name: 'my_extension_1',
-    })
-
-    // Create a temporary ActionExtension.js file
-    const extensionDirectory = joinPath(tmpDir, 'extensions', 'my_extension_1', 'src')
-    await mkdir(extensionDirectory)
-
-    const tempFilePath = joinPath(extensionDirectory, 'ActionExtension.js')
-    await writeFile(tempFilePath, '/* ActionExtension.js content */')
-
-    // When
-    await expect(loadTestingApp()).rejects.toThrow(
-      `A single target can't support two print action extensions from the same app. Point your extensions at different targets, or remove an extension.\n\nThe following extensions both target admin.product-details.print-action.render:\n  · handle-1\n  · handle-2`,
-    )
-  })
-
   test('throws an error if the extension configuration is unified and doesnt include a handle', async () => {
     // Given
     await writeConfig(appConfiguration, {

packages/app/src/cli/models/app/loader.ts

@@ -32,7 +32,6 @@ import {findConfigFiles} from '../../prompts/config.js'
 import {WebhookSubscriptionSpecIdentifier} from '../extensions/specifications/app_config_webhook_subscription.js'
 import {WebhooksSchema} from '../extensions/specifications/app_config_webhook_schemas/webhooks_schema.js'
 import {loadLocalExtensionsSpecifications} from '../extensions/load-specifications.js'
-import {UIExtensionSchemaType} from '../extensions/specifications/ui_extension.js'
 import {patchAppHiddenConfigFile} from '../../services/app/patch-app-configuration-file.js'
 import {getOrCreateAppConfigHiddenPath} from '../../utilities/app/config/hidden-app-config.js'
 import {ApplicationURLs, generateApplicationURLs} from '../../services/dev/urls.js'
@@ -545,10 +544,6 @@ class AppLoader<TConfig extends AppConfiguration, TModuleSpec extends ExtensionS
       }
     })
 
-    // Temporary code to validate that there is a single print action extension per target in an app.
-    // Should be replaced by core validation.
-    this.validatePrintActionExtensionsUniqueness(allExtensions)
-
     return allExtensions
   }
 
@@ -745,31 +740,6 @@ class AppLoader<TConfig extends AppConfiguration, TModuleSpec extends ExtensionS
     }
   }
 
-  private validatePrintActionExtensionsUniqueness(allExtensions: ExtensionInstance[]) {
-    const duplicates: {[key: string]: ExtensionInstance[]} = {}
-
-    allExtensions
-      .filter((ext) => ext.type === 'ui_extension')
-      .forEach((extension) => {
-        const points = extension.configuration.extension_points as UIExtensionSchemaType['extension_points']
-        const targets = points.flatMap((point) => point.target).filter((target) => printTargets.includes(target))
-        targets.forEach((target) => {
-          const targetExtensions = duplicates[target] ?? []
-          targetExtensions.push(extension)
-          duplicates[target] = targetExtensions
-
-          if (targetExtensions.length > 1) {
-            const extensionHandles = ['', ...targetExtensions.map((ext) => ext.configuration.handle)].join('\n  · ')
-            this.abortOrReport(
-              outputContent`A single target can't support two print action extensions from the same app. Point your extensions at different targets, or remove an extension.\n\nThe following extensions both target ${target}:${extensionHandles}`,
-              undefined,
-              extension.configurationPath,
-            )
-          }
-        })
-      })
-  }
-
   private getDevApplicationURLs(currentConfiguration: TConfig, webs: Web[]): ApplicationURLs | undefined {
     const previousDevUrls = this.previousApp?.devApplicationURLs
     if (!previousDevUrls || !isCurrentAppSchema(currentConfiguration)) return previousDevUrls
@@ -1320,10 +1290,3 @@ export function isValidFormatAppConfigurationFileName(configName: string): confi
   }
   return false
 }
-
-const printTargets = [
-  'admin.order-details.print-action.render',
-  'admin.order-index.selection-print-action.render',
-  'admin.product-details.print-action.render',
-  'admin.product-index.selection-print-action.render',
-]

packages/app/src/cli/models/extensions/specifications/ui_extension.ts

@@ -33,8 +33,6 @@ export interface BuildManifest {
 
 const missingExtensionPointsMessage = 'No extension targets defined, add a `targeting` field to your configuration'
 
-export type UIExtensionSchemaType = zod.infer<typeof UIExtensionSchema>
-
 export const UIExtensionSchema = BaseSchema.extend({
   name: zod.string(),
   type: zod.literal('ui_extension'),