Add ContactFromIdentityProvider

Sources/ElixxirDAppsSDK/Client.swift

@@ -10,6 +10,7 @@ public struct Client {
   public var listenErrors: ClientErrorListener
   public var makeIdentity: IdentityMaker
   public var connect: ConnectionMaker
+  public var getContactFromIdentity: ContactFromIdentityProvider
   public var waitForDelivery: MessageDeliveryWaiter
 }
 
@@ -25,6 +26,7 @@ extension Client {
       listenErrors: .live(bindingsClient: bindingsClient),
       makeIdentity: .live(bindingsClient: bindingsClient),
       connect: .live(bindingsClient: bindingsClient),
+      getContactFromIdentity: .live(bindingsClient: bindingsClient),
       waitForDelivery: .live(bindingsClient: bindingsClient)
     )
   }
@@ -42,6 +44,7 @@ extension Client {
     listenErrors: .failing,
     makeIdentity: .failing,
     connect: .failing,
+    getContactFromIdentity: .failing,
     waitForDelivery: .failing
   )
 }

Sources/ElixxirDAppsSDK/ContactFromIdentityProvider.swift

+import Bindings
+
+public struct ContactFromIdentityProvider {
+  public var get: (Data) throws -> Data
+
+  public func callAsFunction(identity: Data) throws -> Data {
+    try get(identity)
+  }
+}
+
+extension ContactFromIdentityProvider {
+  public static func live(bindingsClient: BindingsClient) -> ContactFromIdentityProvider {
+    ContactFromIdentityProvider(get: bindingsClient.getContactFromIdentity(_:))
+  }
+}
+
+#if DEBUG
+extension ContactFromIdentityProvider {
+  public static let failing = ContactFromIdentityProvider { _ in
+    struct NotImplemented: Error {}
+    throw NotImplemented()
+  }
+}
+#endif