Half baked changes

DynamicIsland/helpers/DisplayServicesDynamic.swift

@@ -0,0 +1,57 @@
+//
+//  DisplayServicesDynamic.swift
+//  DynamicIsland
+//
+//  Created by AI Assistant on 25/12/2025.
+//
+//  Lightweight wrapper that resolves DisplayServices symbols at runtime so we
+//  can call the private brightness APIs without linking against the framework.
+//
+
+import Foundation
+import Darwin
+
+final class DisplayServicesDynamic {
+    static let shared = DisplayServicesDynamic()
+
+    private let handle: UnsafeMutableRawPointer?
+
+    private typealias GetBrightnessFn = @convention(c) (UInt32, UnsafeMutablePointer<Float>) -> Int32
+    private typealias SetBrightnessFn = @convention(c) (UInt32, Float) -> Int32
+
+    private let getBrightnessFn: GetBrightnessFn?
+    private let setBrightnessFn: SetBrightnessFn?
+
+    private init() {
+        handle = dlopen("/System/Library/PrivateFrameworks/DisplayServices.framework/DisplayServices", RTLD_NOW)
+
+        if handle == nil, let errorPointer = dlerror() {
+            let message = String(cString: errorPointer)
+            NSLog("⚠️ DisplayServicesDynamic: dlopen failed - %@", message)
+        }
+
+        getBrightnessFn = handle.flatMap { dlsym($0, "DisplayServicesGetBrightness") }
+            .map { unsafeBitCast($0, to: GetBrightnessFn.self) }
+
+        setBrightnessFn = handle.flatMap { dlsym($0, "DisplayServicesSetBrightness") }
+            .map { unsafeBitCast($0, to: SetBrightnessFn.self) }
+    }
+
+    func setBrightness(displayID: UInt32, value: Float) -> Int32? {
+        guard let fn = setBrightnessFn else { return nil }
+        return fn(displayID, value)
+    }
+
+    func getBrightness(displayID: UInt32) -> (status: Int32, value: Float)? {
+        guard let fn = getBrightnessFn else { return nil }
+        var brightness: Float = 0
+        let status = fn(displayID, &brightness)
+        return (status, brightness)
+    }
+
+    deinit {
+        if let handle {
+            dlclose(handle)
+        }
+    }
+}