fix: use right privacyURL

- remove some redundancy code

CoreDataStack/Entity/SubscriptionAlerts.swift

@@ -9,7 +9,6 @@
 import Foundation
 import CoreData
 
-@objc(SubscriptionAlerts)
 public final class SubscriptionAlerts: NSManagedObject {
     @NSManaged public var follow: NSNumber?
     @NSManaged public var favourite: NSNumber?

Mastodon/Extension/UIButton.swift

@@ -44,22 +44,10 @@ extension UIButton {
 }
 
 extension UIButton {
-    // https://stackoverflow.com/questions/14523348/how-to-change-the-background-color-of-a-uibutton-while-its-highlighted
-    private func image(withColor color: UIColor) -> UIImage? {
-        let rect = CGRect(x: 0.0, y: 0.0, width: 1.0, height: 1.0)
-        UIGraphicsBeginImageContext(rect.size)
-        let context = UIGraphicsGetCurrentContext()
-
-        context?.setFillColor(color.cgColor)
-        context?.fill(rect)
-
-        let image = UIGraphicsGetImageFromCurrentImageContext()
-        UIGraphicsEndImageContext()
-
-        return image
-    }
-
     func setBackgroundColor(_ color: UIColor, for state: UIControl.State) {
-        self.setBackgroundImage(image(withColor: color), for: state)
+        self.setBackgroundImage(
+            UIImage.placeholder(color: color),
+            for: state
+        )
     }
 }

Mastodon/Scene/Settings/SettingsViewController.swift

@@ -311,8 +311,9 @@ extension SettingsViewController: UITableViewDelegate {
         
         switch item {
         case .boringZone:
+            guard let url = viewModel.privacyURL else { break }
             coordinator.present(
-                scene: .safari(url: URL(string: "https://mastodon.online/terms")!),
+                scene: .safari(url: url),
                 from: self,
                 transition: .safariPresent(animated: true, completion: nil)
             )
@@ -345,11 +346,9 @@ extension SettingsViewController {
     func updateTrigger(by who: String) {
         guard let setting = self.viewModel.setting.value else { return }
         
-        context.managedObjectContext.performChanges {
+        _ = context.managedObjectContext.performChanges {
             setting.update(triggerBy: who)
         }
-        .sink { (_) in
-        }.store(in: &disposeBag)
     }
     
     func updateAlert(title: String?, isOn: Bool) {

Mastodon/Scene/Settings/SettingsViewModel.swift

@@ -70,6 +70,14 @@ class SettingsViewModel: NSObject, NeedsDependency {
                 noOne: noOneSwitchItems]
     }()
     
+    lazy var privacyURL: URL? = {
+        guard let box = AppContext.shared.authenticationService.activeMastodonAuthenticationBox.value else {
+            return nil
+        }
+        
+        return Mastodon.API.privacyURL(domain: box.domain)
+    }()
+    
     struct Input {
     }
 

MastodonSDK/Sources/MastodonSDK/API/Mastodon+API+Push.swift

@@ -28,7 +28,7 @@ extension Mastodon.API.Subscriptions {
     ///   - session: `URLSession`
     ///   - domain: Mastodon instance domain. e.g. "example.com"
     ///   - authorization: User token. Could be nil if status is public
-    /// - Returns: `AnyPublisher` contains `Poll` nested in the response
+    /// - Returns: `AnyPublisher` contains `Subscription` nested in the response
     public static func subscription(
         session: URLSession,
         domain: String,
@@ -61,7 +61,7 @@ extension Mastodon.API.Subscriptions {
     ///   - session: `URLSession`
     ///   - domain: Mastodon instance domain. e.g. "example.com"
     ///   - authorization: User token. Could be nil if status is public
-    /// - Returns: `AnyPublisher` contains `Poll` nested in the response
+    /// - Returns: `AnyPublisher` contains `Subscription` nested in the response
     public static func createSubscription(
         session: URLSession,
         domain: String,
@@ -95,7 +95,7 @@ extension Mastodon.API.Subscriptions {
     ///   - session: `URLSession`
     ///   - domain: Mastodon instance domain. e.g. "example.com"
     ///   - authorization: User token. Could be nil if status is public
-    /// - Returns: `AnyPublisher` contains `Poll` nested in the response
+    /// - Returns: `AnyPublisher` contains `Subscription` nested in the response
     public static func updateSubscription(
         session: URLSession,
         domain: String,