fix: stub in mock composables when module disabled

Author: harlan-zw

Diff for: src/module.ts

@@ -173,6 +173,21 @@ export default defineNuxtModule<ModuleOptions>({
     logger.level = (config.debug || nuxt.options.debug) ? 4 : 3
     if (config.enabled === false) {
       logger.debug('The module is disabled, skipping setup.')
+      // need to mock the composables to allow module still to work when disabled
+      ;['defineRobotMeta', 'useRobotsRule']
+        .forEach((name) => {
+          addImports({ name, from: resolve(`./runtime/nuxt/composables/mock`) })
+        })
+      nuxt.options.nitro = nuxt.options.nitro || {}
+      nuxt.options.nitro.imports = nuxt.options.nitro.imports || {}
+      nuxt.options.nitro.imports.presets = nuxt.options.nitro.imports.presets || []
+      nuxt.options.nitro.imports.presets.push({
+        from: resolve('./runtime/nitro/composables/mock'),
+        imports: [
+          'getPathRobotConfig',
+          'getSiteRobotConfig',
+        ],
+      })
       return
     }
 

Diff for: src/runtime/nitro/composables/mock.ts

@@ -0,0 +1,17 @@
+import type { H3Event } from 'h3'
+
+// eslint-disable-next-line unused-imports/no-unused-vars
+export function getPathRobotConfig(e: H3Event, options?: { skipSiteIndexable?: boolean, path?: string }) {
+  return {
+    indexable: true,
+    rule: '',
+  }
+}
+
+// eslint-disable-next-line unused-imports/no-unused-vars
+export function getSiteRobotConfig(e: H3Event): { indexable: boolean, hints: string[] } {
+  return {
+    indexable: true,
+    hints: [],
+  }
+}

Diff for: src/runtime/nuxt/composables/mock.ts

@@ -0,0 +1,10 @@
+import type { MaybeRef } from 'vue'
+import { ref } from '#imports'
+
+// eslint-disable-next-line unused-imports/no-unused-vars
+export function defineRobotMeta(component?: boolean) {}
+
+// eslint-disable-next-line unused-imports/no-unused-vars
+export function useRobotsRule(rule?: MaybeRef<boolean | string>) {
+  return ref('')
+}