feat(account): add QR invitation poster and 8-character invitation codes

- Invite opens an appearance-matched poster with the app icon, inviter name, QR code, and short code; tap for a full-brightness QR view; save (add-only Photos access), share, or copy the link. Mac shows the poster in a popover and can save it as PNG. - Accounts get look-alike-free 8-character codes. "I have a code" accepts a code, link, or pasted message during the server-defined binding window. - Permanently rejected redemptions show a specific message and drop the stored code instead of retrying on every sign-in.
2026-10-20 20:06:36 +02:00
parent eaacc35cf7
commit 03bfbbe08b
26 changed files with 2269 additions and 86 deletions
@@ -0,0 +1,81 @@
+// ScreenBrightnessBoostTests.swift
+// OSGKeyboardTests
+//
+// Whatever order holds and scene changes arrive in, the user's own
+// brightness must come back once nothing needs the boost.
+
+@testable import OSGKeyboard
+import XCTest
+
+@MainActor
+final class ScreenBrightnessBoostTests: XCTestCase {
+    private final class FakeScreen: ScreenBrightnessControlling {
+        var brightness: CGFloat
+        init(brightness: CGFloat) { self.brightness = brightness }
+    }
+
+    func testHoldRaisesBrightnessAndReleaseRestoresIt() {
+        let screen = FakeScreen(brightness: 0.4)
+        let boost = ScreenBrightnessBoost { screen }
+
+        boost.acquire()
+        XCTAssertEqual(screen.brightness, 1)
+
+        boost.release()
+        XCTAssertEqual(screen.brightness, 0.4)
+    }
+
+    func testOverlappingHoldsKeepTheOriginalLevel() {
+        let screen = FakeScreen(brightness: 0.3)
+        let boost = ScreenBrightnessBoost { screen }
+
+        // A new view appears before the previous one disappears.
+        boost.acquire()
+        boost.acquire()
+        boost.release()
+        XCTAssertEqual(screen.brightness, 1)
+
+        boost.release()
+        XCTAssertEqual(screen.brightness, 0.3)
+    }
+
+    func testBackgroundRestoresAndForegroundReapplies() {
+        let screen = FakeScreen(brightness: 0.5)
+        let boost = ScreenBrightnessBoost { screen }
+        boost.acquire()
+
+        boost.setInForeground(false)
+        XCTAssertEqual(screen.brightness, 0.5)
+
+        boost.setInForeground(true)
+        XCTAssertEqual(screen.brightness, 1)
+
+        boost.release()
+        XCTAssertEqual(screen.brightness, 0.5)
+    }
+
+    func testUnbalancedReleaseLeavesBrightnessAlone() {
+        let screen = FakeScreen(brightness: 0.6)
+        let boost = ScreenBrightnessBoost { screen }
+
+        boost.release()
+        boost.acquire()
+        XCTAssertEqual(screen.brightness, 1)
+
+        boost.release()
+        XCTAssertEqual(screen.brightness, 0.6)
+    }
+
+    func testMissingScreenIsRetriedOnTheNextChange() {
+        var screen: FakeScreen?
+        let boost = ScreenBrightnessBoost { screen }
+
+        boost.acquire()
+        screen = FakeScreen(brightness: 0.2)
+        boost.setInForeground(true)
+        XCTAssertEqual(screen?.brightness, 1)
+
+        boost.release()
+        XCTAssertEqual(screen?.brightness, 0.2)
+    }
+}