From 245bf8b662d5677f13fb6706c5844f3e875267cc Mon Sep 17 00:00:00 2001
From: Dariusz Rybicki <dariusz@elixxir.io>
Date: Wed, 1 Jun 2022 11:48:29 +0200
Subject: [PATCH] Add NDFDownloader
---
Sources/ElixxirDAppsSDK/Errors.swift | 3 ++
Sources/ElixxirDAppsSDK/NDFDownloader.swift | 36 +++++++++++++++++++++
2 files changed, 39 insertions(+)
create mode 100644 Sources/ElixxirDAppsSDK/Errors.swift
create mode 100644 Sources/ElixxirDAppsSDK/NDFDownloader.swift
diff --git a/Sources/ElixxirDAppsSDK/Errors.swift b/Sources/ElixxirDAppsSDK/Errors.swift
new file mode 100644
index 00000000..acb28692
--- /dev/null
+++ b/Sources/ElixxirDAppsSDK/Errors.swift
@@ -0,0 +1,3 @@
+public struct BindingsDownloadAndVerifySignedNdfWithUrlUnknownError: Error, Equatable {
+ public init() {}
+}
diff --git a/Sources/ElixxirDAppsSDK/NDFDownloader.swift b/Sources/ElixxirDAppsSDK/NDFDownloader.swift
new file mode 100644
index 00000000..c0552b99
--- /dev/null
+++ b/Sources/ElixxirDAppsSDK/NDFDownloader.swift
@@ -0,0 +1,36 @@
+import Bindings
+
+public struct NDFDownloader {
+ public var run: (Environment) throws -> Data
+
+ public func callAsFunction(_ env: Environment) throws -> Data {
+ try run(env)
+ }
+}
+
+extension NDFDownloader {
+ public static let live = NDFDownloader { env in
+ var error: NSError?
+ let data = BindingsDownloadAndVerifySignedNdfWithUrl(
+ env.url.absoluteString,
+ env.cert,
+ &error
+ )
+ if let error = error {
+ throw error
+ }
+ guard let data = data else {
+ throw BindingsDownloadAndVerifySignedNdfWithUrlUnknownError()
+ }
+ return data
+ }
+}
+
+#if DEBUG
+extension NDFDownloader {
+ public static let failing = NDFDownloader { _ in
+ struct NotImplemented: Error {}
+ throw NotImplemented()
+ }
+}
+#endif
--
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