Add state management

src/state/storage.ts

@@ -0,0 +1,52 @@
+import AsyncStorage from '@react-native-async-storage/async-storage'
+
+export async function loadString(key: string): Promise<string | null> {
+  try {
+    return await AsyncStorage.getItem(key)
+  } catch {
+    // not sure why this would fail... even reading the RN docs I'm unclear
+    return null
+  }
+}
+
+export async function saveString(key: string, value: string): Promise<boolean> {
+  try {
+    await AsyncStorage.setItem(key, value)
+    return true
+  } catch {
+    return false
+  }
+}
+
+export async function load(key: string): Promise<any | null> {
+  try {
+    const str = await AsyncStorage.getItem(key)
+    if (typeof str !== 'string') {
+      return null
+    }
+    return JSON.parse(str)
+  } catch {
+    return null
+  }
+}
+
+export async function save(key: string, value: any): Promise<boolean> {
+  try {
+    await AsyncStorage.setItem(key, JSON.stringify(value))
+    return true
+  } catch {
+    return false
+  }
+}
+
+export async function remove(key: string): Promise<void> {
+  try {
+    await AsyncStorage.removeItem(key)
+  } catch {}
+}
+
+export async function clear(): Promise<void> {
+  try {
+    await AsyncStorage.clear()
+  } catch {}
+}