Initial commit of Edison Voice menu-bar dictation app

Sources/EdisonCore/Support/Permissions.swift

@@ -0,0 +1,52 @@
+import AVFoundation
+import AppKit
+import ApplicationServices
+import Foundation
+
+/// Edison Voice needs two grants, and neither can be worked around:
+/// - **Microphone** — obviously.
+/// - **Accessibility** — for both the `CGEventTap` (hotkey) and the AX text insert.
+///
+/// Accessibility has no programmatic request; the OS only shows the prompt, and the user
+/// must toggle it in System Settings. TCC also keys on the code signature, so re-signing
+/// the app resets the grant.
+@MainActor
+public enum Permissions {
+    public static var hasAccessibility: Bool {
+        AXIsProcessTrusted()
+    }
+
+    public static var hasMicrophone: Bool {
+        AVCaptureDevice.authorizationStatus(for: .audio) == .authorized
+    }
+
+    /// Shows the system Accessibility prompt if the app isn't yet trusted.
+    @discardableResult
+    public static func promptForAccessibility() -> Bool {
+        // Spelled out rather than using `kAXTrustedCheckOptionPrompt`, which imports as a
+        // mutable global and so isn't usable from concurrency-checked code.
+        let options = ["AXTrustedCheckOptionPrompt": true] as CFDictionary
+        return AXIsProcessTrustedWithOptions(options)
+    }
+
+    public static func requestMicrophone() async -> Bool {
+        switch AVCaptureDevice.authorizationStatus(for: .audio) {
+        case .authorized:
+            return true
+        case .notDetermined:
+            return await AVCaptureDevice.requestAccess(for: .audio)
+        default:
+            return false
+        }
+    }
+
+    public static func openAccessibilitySettings() {
+        let url = URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Accessibility")!
+        NSWorkspace.shared.open(url)
+    }
+
+    public static func openMicrophoneSettings() {
+        let url = URL(string: "x-apple.systempreferences:com.apple.preference.security?Privacy_Microphone")!
+        NSWorkspace.shared.open(url)
+    }
+}