Adopt root-level tsswift app layout

Move the app payload under swift/ while keeping git, package.json, and .smartconfig.json at the repo root. This standardizes the Swift app setup so build, test, run, and watch workflows match the other repos.
2026-04-19 01:21:43 +02:00
parent d534964601
commit a6939453f8
61 changed files with 2341 additions and 3 deletions
@@ -0,0 +1,19 @@
+import CryptoKit
+import Foundation
+
+enum OneTimePasscodeGenerator {
+    static func code(for pairingCode: String, at date: Date) -> String {
+        let timeSlot = Int(date.timeIntervalSince1970 / 30)
+        let digest = SHA256.hash(data: Data("\(pairingCode)|\(timeSlot)".utf8))
+        let value = digest.prefix(4).reduce(UInt32(0)) { partialResult, byte in
+            (partialResult << 8) | UInt32(byte)
+        }
+
+        return String(format: "%06d", locale: Locale(identifier: "en_US_POSIX"), Int(value % 1_000_000))
+    }
+
+    static func renewalCountdown(at date: Date) -> Int {
+        let elapsed = Int(date.timeIntervalSince1970) % 30
+        return elapsed == 0 ? 30 : 30 - elapsed
+    }
+}