From e5f052f347177c6670d2f6f68980fd9face942f6 Mon Sep 17 00:00:00 2001
From: Dariusz Rybicki <dariusz@elixxir.io>
Date: Thu, 28 Jul 2022 22:00:16 +0100
Subject: [PATCH] Add LoadOrNewUserDiscovery functor

---
 .../Functors/LoadOrNewUserDiscovery.swift     | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Sources/ElixxirDAppsSDK/Functors/LoadOrNewUserDiscovery.swift

diff --git a/Sources/ElixxirDAppsSDK/Functors/LoadOrNewUserDiscovery.swift b/Sources/ElixxirDAppsSDK/Functors/LoadOrNewUserDiscovery.swift
new file mode 100644
index 00000000..f1817eb0
--- /dev/null
+++ b/Sources/ElixxirDAppsSDK/Functors/LoadOrNewUserDiscovery.swift
@@ -0,0 +1,43 @@
+import Bindings
+import XCTestDynamicOverlay
+
+public struct LoadOrNewUserDiscovery {
+  public var run: (Int, UdNetworkStatus, String, Data) throws -> UserDiscovery
+
+  public func callAsFunction(
+    e2eId: Int,
+    follower: UdNetworkStatus,
+    username: String,
+    registrationValidationSignature: Data
+  ) throws -> UserDiscovery {
+    try run(e2eId, follower, username, registrationValidationSignature)
+  }
+}
+
+extension LoadOrNewUserDiscovery {
+  public static let live = LoadOrNewUserDiscovery {
+    e2eId, follower, username, registrationValidationSignature in
+
+    var error: NSError?
+    let bindingsUD = BindingsLoadOrNewUserDiscovery(
+      e2eId,
+      follower.makeBindingsUdNetworkStatus(),
+      username,
+      registrationValidationSignature,
+      &error
+    )
+    if let error = error {
+      throw error
+    }
+    guard let bindingsUD = bindingsUD else {
+      fatalError("BindingsLoadOrNewUserDiscovery returned `nil` without providing error")
+    }
+    return .live(bindingsUD)
+  }
+}
+
+extension LoadOrNewUserDiscovery {
+  public static let unimplemented = LoadOrNewUserDiscovery(
+    run: XCTUnimplemented("\(Self.self)")
+  )
+}
-- 
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