From 5f4611d65e40eae3ca6191a15f68d69ea5a1c4cb Mon Sep 17 00:00:00 2001
From: Kirill Rogovoy <kirill@rogovoy.me>
Date: Tue, 20 Jul 2021 21:24:52 +0300
Subject: WIP

---
 app_expo/utils/storage/storage.ts | 79 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 app_expo/utils/storage/storage.ts

(limited to 'app_expo/utils/storage/storage.ts')

diff --git a/app_expo/utils/storage/storage.ts b/app_expo/utils/storage/storage.ts
new file mode 100644
index 0000000..659e738
--- /dev/null
+++ b/app_expo/utils/storage/storage.ts
@@ -0,0 +1,79 @@
+import AsyncStorage from '@react-native-async-storage/async-storage'
+
+/**
+ * Loads a string from storage.
+ *
+ * @param key The key to fetch.
+ */
+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
+  }
+}
+
+/**
+ * Saves a string to storage.
+ *
+ * @param key The key to fetch.
+ * @param value The value to store.
+ */
+export async function saveString(key: string, value: string): Promise<boolean> {
+  try {
+    await AsyncStorage.setItem(key, value)
+    return true
+  } catch {
+    return false
+  }
+}
+
+/**
+ * Loads something from storage and runs it thru JSON.parse.
+ *
+ * @param key The key to fetch.
+ */
+export async function load(key: string): Promise<any | null> {
+  try {
+    const almostThere = await AsyncStorage.getItem(key)
+    return JSON.parse(almostThere)
+  } catch {
+    return null
+  }
+}
+
+/**
+ * Saves an object to storage.
+ *
+ * @param key The key to fetch.
+ * @param value The value to store.
+ */
+export async function save(key: string, value: any): Promise<boolean> {
+  try {
+    await AsyncStorage.setItem(key, JSON.stringify(value))
+    return true
+  } catch {
+    return false
+  }
+}
+
+/**
+ * Removes something from storage.
+ *
+ * @param key The key to kill.
+ */
+export async function remove(key: string): Promise<void> {
+  try {
+    await AsyncStorage.removeItem(key)
+  } catch {}
+}
+
+/**
+ * Burn it all to the ground.
+ */
+export async function clear(): Promise<void> {
+  try {
+    await AsyncStorage.clear()
+  } catch {}
+}
-- 
cgit v1.2.3