Update Permission Requirement

DynamicIsland/helpers/FullDiskAccessPermissionStore.swift

@@ -0,0 +1,112 @@
+import AppKit
+import Combine
+import Foundation
+
+enum FullDiskAccessAuthorization {
+    private static let probeURLs: [URL] = [
+        FileManager.default.homeDirectoryForCurrentUser
+            .appendingPathComponent("Library/Application Support/com.apple.TCC/TCC.db"),
+        FileManager.default.homeDirectoryForCurrentUser
+            .appendingPathComponent("Library/DoNotDisturb/DB/ModeConfigurations.json")
+    ]
+
+    static func hasPermission() -> Bool {
+        for url in probeURLs {
+            if canReadProtectedResource(at: url) {
+                return true
+            }
+        }
+        return false
+    }
+
+    private static func canReadProtectedResource(at url: URL) -> Bool {
+        var isDirectory: ObjCBool = false
+        guard FileManager.default.fileExists(atPath: url.path, isDirectory: &isDirectory), !isDirectory.boolValue else {
+            return false
+        }
+
+        do {
+            let handle = try FileHandle(forReadingFrom: url)
+            try handle.close()
+            return true
+        } catch {
+            return false
+        }
+    }
+}
+
+@MainActor
+final class FullDiskAccessPermissionStore: ObservableObject {
+    static let shared = FullDiskAccessPermissionStore()
+
+    @Published private(set) var isAuthorized: Bool = FullDiskAccessAuthorization.hasPermission()
+
+    private var pollingTask: Task<Void, Never>?
+
+    private init() {}
+
+    deinit {
+        pollingTask?.cancel()
+    }
+
+    func refreshStatus() {
+        updateAuthorizationStatus(to: FullDiskAccessAuthorization.hasPermission())
+    }
+
+    func requestAccessPrompt() {
+#if os(macOS)
+        let alert = NSAlert()
+        alert.messageText = "Full Disk Access Required"
+        alert.informativeText = "Dynamic Island needs Full Disk Access to detect custom Focus indicators and power the Shelf. Click Continue to open Full Disk Access settings, then press the + button and select Dynamic Island (we'll reveal it in Finder for you)."
+        alert.alertStyle = .informational
+        alert.addButton(withTitle: "Continue")
+        alert.addButton(withTitle: "Cancel")
+
+        if alert.runModal() == .alertFirstButtonReturn {
+            openSystemSettings()
+            revealAppBundleInFinder()
+        }
+#endif
+        beginPollingForStatusChanges()
+    }
+
+    func openSystemSettings() {
+#if os(macOS)
+        if let url = URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_AllFiles") {
+            NSWorkspace.shared.open(url)
+        }
+#endif
+    }
+
+    private func revealAppBundleInFinder() {
+#if os(macOS)
+        let bundleURL = Bundle.main.bundleURL
+        NSWorkspace.shared.activateFileViewerSelecting([bundleURL])
+#endif
+    }
+
+    private func beginPollingForStatusChanges() {
+        pollingTask?.cancel()
+        pollingTask = Task { [weak self] in
+            guard let self else { return }
+
+            for _ in 0..<40 {
+                try? await Task.sleep(nanoseconds: 500_000_000)
+                let status = FullDiskAccessAuthorization.hasPermission()
+
+                await MainActor.run {
+                    self.updateAuthorizationStatus(to: status)
+                }
+
+                if status {
+                    break
+                }
+            }
+        }
+    }
+
+    private func updateAuthorizationStatus(to newValue: Bool) {
+        guard newValue != isAuthorized else { return }
+        isAuthorized = newValue
+    }
+}