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layers/ui/composables/use-global-config.ts

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+import { computed, getCurrentInstance, inject, provide, unref } from 'vue'
+import type { MaybeRef, Ref } from 'vue'
+
+export function useGlobalConfig(
+  key: string,
+  defaultValue: unknown = undefined,
+): Ref<unknown> {
+  const config = inject('GLOBAL_CONFIG') as MaybeRef<unknown>
+
+  if (key)
+    return computed(() => unref(config)?.[key] ?? defaultValue)
+  else
+    return config
+}
+
+export function provideGlobalConfig(config, app) {
+  const inSetup = !!getCurrentInstance()
+
+  const provideFn = app?.provide ?? (inSetup ? provide : undefined)
+
+  if (!provideFn)
+    return
+
+  provideFn('GLOBAL_CONFIG', config)
+
+  return config
+}