chore: import upstream snapshot with attribution

2026-07-13 12:22:33 +08:00
commit fc4fcbab58
1848 changed files with 472303 additions and 0 deletions
@@ -0,0 +1,73 @@
+import Foundation
+
+enum UpdateChannel: String, CaseIterable, Codable {
+    case stable
+    case beta
+
+    static let userDefaultsKey = "updateChannel"
+    static let sparkleBetaChannel = "beta"
+
+    var displayName: String {
+        switch self {
+        case .stable:
+            "Stable"
+        case .beta:
+            "Beta"
+        }
+    }
+
+    var description: String {
+        switch self {
+        case .stable:
+            "Receive only stable, production-ready releases."
+        case .beta:
+            "Receive stable releases plus beta previews."
+        }
+    }
+
+    var allowedSparkleChannels: Set<String> {
+        switch self {
+        case .stable:
+            [""]
+        case .beta:
+            ["", UpdateChannel.sparkleBetaChannel]
+        }
+    }
+
+    static var current: Self {
+        if let rawValue = UserDefaults.standard.string(forKey: userDefaultsKey),
+           let channel = Self(rawValue: rawValue)
+        {
+            return channel
+        }
+        return defaultChannel
+    }
+
+    static var defaultChannel: Self {
+        defaultChannel(for: Bundle.main.infoDictionary?["CFBundleShortVersionString"] as? String ?? "1.0")
+    }
+
+    static func defaultChannel(for appVersion: String) -> Self {
+        if let isPrereleaseValue = Bundle.main.object(forInfoDictionaryKey: "IS_PRERELEASE_BUILD"),
+           let isPrerelease = isPrereleaseValue as? Bool,
+           isPrerelease
+        {
+            return .beta
+        }
+
+        let prereleaseKeywords = ["beta", "alpha", "rc", "pre", "dev"]
+        let lowercaseVersion = appVersion.lowercased()
+
+        for keyword in prereleaseKeywords where lowercaseVersion.contains(keyword) {
+            return .beta
+        }
+
+        return .stable
+    }
+}
+
+extension UpdateChannel: Identifiable {
+    var id: String {
+        rawValue
+    }
+}