Create shared preferences API (#4654)

modules/expo-bluesky-swiss-army/ios/DevicePrefs/ExpoBlueskyDevicePrefsModule.swift

@@ -1,23 +0,0 @@
-import ExpoModulesCore
-
-public class ExpoBlueskyDevicePrefsModule: Module {
-  func getDefaults(_ useAppGroup: Bool) -> UserDefaults? {
-    if useAppGroup {
-      return UserDefaults(suiteName: "group.app.bsky")
-    } else {
-      return UserDefaults.standard
-    }
-  }
-
-  public func definition() -> ModuleDefinition {
-    Name("ExpoBlueskyDevicePrefs")
-
-    AsyncFunction("getStringValueAsync") { (key: String, useAppGroup: Bool) in
-      return self.getDefaults(useAppGroup)?.string(forKey: key)
-    }
-
-    AsyncFunction("setStringValueAsync") { (key: String, value: String?, useAppGroup: Bool) in
-      self.getDefaults(useAppGroup)?.setValue(value, forKey: key)
-    }
-  }
-}

modules/expo-bluesky-swiss-army/ios/SharedPrefs/ExpoBlueskySharedPrefsModule.swift

@@ -0,0 +1,62 @@
+import Foundation
+import ExpoModulesCore
+
+public class ExpoBlueskySharedPrefsModule: Module {
+  let defaults = UserDefaults(suiteName: "group.app.bsky")
+
+  func getDefaults(_ info: String = "(no info)") -> UserDefaults? {
+    guard let defaults = self.defaults else {
+      NSLog("Failed to get defaults for app group: \(info)")
+      return nil
+    }
+    return defaults
+  }
+
+  public func definition() -> ModuleDefinition {
+    Name("ExpoBlueskySharedPrefs")
+
+    // JavaScripValue causes a crash when trying to check `isString()`. Let's
+    // explicitly define setString instead.
+    Function("setString") { (key: String, value: String?) in
+      SharedPrefs.shared.setValue(key, value)
+    }
+
+    Function("setValue") { (key: String, value: JavaScriptValue) in
+      if value.isNumber() {
+        SharedPrefs.shared.setValue(key, value.getDouble())
+      } else if value.isBool() {
+        SharedPrefs.shared.setValue(key, value.getBool())
+      } else if value.isNull() || value.isUndefined() {
+        SharedPrefs.shared.removeValue(key)
+      }
+    }
+
+    Function("removeValue") { (key: String) in
+      SharedPrefs.shared.removeValue(key)
+    }
+
+    Function("getString") { (key: String) in
+      return SharedPrefs.shared.getString(key)
+    }
+
+    Function("getBool") { (key: String) in
+      return SharedPrefs.shared.getBool(key)
+    }
+
+    Function("getNumber") { (key: String) in
+      return SharedPrefs.shared.getNumber(key)
+    }
+
+    Function("addToSet") { (key: String, value: String) in
+      SharedPrefs.shared.addToSet(key, value)
+    }
+
+    Function("removeFromSet") { (key: String, value: String) in
+      SharedPrefs.shared.removeFromSet(key, value)
+    }
+
+    Function("setContains") { (key: String, value: String) in
+      return SharedPrefs.shared.setContains(key, value)
+    }
+  }
+}

modules/expo-bluesky-swiss-army/ios/SharedPrefs/SharedPrefs.swift

@@ -0,0 +1,89 @@
+import Foundation
+
+public class SharedPrefs {
+  public static let shared = SharedPrefs()
+
+  private let defaults = UserDefaults(suiteName: "group.app.bsky")
+
+  init() {
+    if defaults == nil {
+      NSLog("Failed to get user defaults for app group.")
+    }
+  }
+
+  private func getDefaults(_ info: String = "(no info)") -> UserDefaults? {
+    guard let defaults = self.defaults else {
+      NSLog("Failed to get defaults for app group: \(info)")
+      return nil
+    }
+    return defaults
+  }
+
+  public func setValue(_ key: String, _ value: String?) {
+    getDefaults(key)?.setValue(value, forKey: key)
+  }
+
+  public func setValue(_ key: String, _ value: Double?) {
+    getDefaults(key)?.setValue(value, forKey: key)
+  }
+
+  public func setValue(_ key: String, _ value: Bool?) {
+    getDefaults(key)?.setValue(value, forKey: key)
+  }
+
+  public func _setAnyValue(_ key: String, _ value: Any?) {
+    getDefaults(key)?.setValue(value, forKey: key)
+  }
+
+  public func removeValue(_ key: String) {
+    getDefaults(key)?.removeObject(forKey: key)
+  }
+
+  public func getString(_ key: String) -> String? {
+    return getDefaults(key)?.string(forKey: key)
+  }
+
+  public func getNumber(_ key: String) -> Double? {
+    return getDefaults(key)?.double(forKey: key)
+  }
+
+  public func getBool(_ key: String) -> Bool? {
+    return getDefaults(key)?.bool(forKey: key)
+  }
+
+  public func addToSet(_ key: String, _ value: String) {
+    var dict: [String: Bool]?
+    if var currDict = getDefaults(key)?.dictionary(forKey: key) as? [String: Bool] {
+      currDict[value] = true
+      dict = currDict
+    } else {
+      dict = [
+        value: true
+      ]
+    }
+    getDefaults(key)?.setValue(dict, forKey: key)
+  }
+
+  public func removeFromSet(_ key: String, _ value: String) {
+    guard var dict = getDefaults(key)?.dictionary(forKey: key) as? [String: Bool] else {
+      return
+    }
+    dict.removeValue(forKey: value)
+    getDefaults(key)?.setValue(dict, forKey: key)
+  }
+
+  public func setContains(_ key: String, _ value: String) -> Bool {
+    guard let dict = getDefaults(key)?.dictionary(forKey: key) as? [String: Bool] else {
+      return false
+    }
+    return dict[value] == true
+  }
+
+  public func hasValue(_ key: String) -> Bool {
+    return getDefaults(key)?.value(forKey: key) != nil
+  }
+
+  public func getValues(_ keys: [String]) -> [String: Any?]? {
+    return getDefaults("keys:\(keys)")?.dictionaryWithValues(forKeys: keys)
+  }
+}