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node_modules/@inertiajs/inertia-vue3/src/useRemember.js

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+import cloneDeep from 'lodash.clonedeep'
+import { Inertia } from '@inertiajs/inertia'
+import { isReactive, reactive, ref, watch } from 'vue'
+
+export default function useRemember(data, key) {
+  if (typeof data === 'object' && data !== null && data.__rememberable === false) {
+    return data
+  }
+
+  const restored = Inertia.restore(key)
+  const type = isReactive(data) ? reactive : ref
+  const hasCallbacks = typeof data.__remember === 'function' && typeof data.__restore === 'function'
+  const remembered = restored === undefined ? data : type(hasCallbacks ? data.__restore(restored) : restored)
+
+  watch(remembered, (newValue) => {
+    Inertia.remember(cloneDeep(hasCallbacks ? data.__remember() : newValue), key)
+  }, { immediate: true, deep: true })
+
+  return remembered
+}