Displays remaining App ID count

AltStore/Base.lproj/Main.storyboard

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15400" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="wKh-xq-NuP">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="15705" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="wKh-xq-NuP">
     <device id="retina4_7" orientation="portrait" appearance="light"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15404"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="15706"/>
         <capability name="Named colors" minToolsVersion="9.0"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
@@ -629,7 +629,7 @@ World</string>
                         <collectionViewFlowLayout key="collectionViewLayout" minimumLineSpacing="15" minimumInteritemSpacing="10" id="SB5-U0-jyy">
                             <size key="itemSize" width="375" height="60"/>
                             <size key="headerReferenceSize" width="50" height="50"/>
-                            <size key="footerReferenceSize" width="0.0" height="0.0"/>
+                            <size key="footerReferenceSize" width="50" height="50"/>
                             <inset key="sectionInset" minX="0.0" minY="0.0" maxX="0.0" maxY="0.0"/>
                         </collectionViewFlowLayout>
                         <cells>
@@ -750,6 +750,39 @@ World</string>
                                 <outlet property="textLabel" destination="BDU-hM-rro" id="CQM-8K-bcH"/>
                             </connections>
                         </collectionReusableView>
+                        <collectionReusableView key="sectionFooterView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" insetsLayoutMarginsFromSafeArea="NO" reuseIdentifier="InstalledAppsFooter" id="HYs-co-nJZ" customClass="InstalledAppsCollectionFooterView" customModule="AltStore" customModuleProvider="target">
+                            <rect key="frame" x="0.0" y="185" width="375" height="50"/>
+                            <autoresizingMask key="autoresizingMask"/>
+                            <subviews>
+                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="5/10 App IDs" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="LLv-8I-6Of">
+                                    <rect key="frame" x="138.5" y="0.0" width="98" height="21"/>
+                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                    <color key="textColor" white="0.5" alpha="1" colorSpace="calibratedWhite"/>
+                                    <nil key="highlightedColor"/>
+                                </label>
+                                <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="NHb-0F-cHZ">
+                                    <rect key="frame" x="241.5" y="-0.5" width="22" height="22"/>
+                                    <constraints>
+                                        <constraint firstAttribute="width" constant="22" id="K1V-bV-Mjg"/>
+                                        <constraint firstAttribute="height" constant="22" id="vW1-aN-slG"/>
+                                    </constraints>
+                                    <state key="normal" image="questionmark.circle" catalog="system"/>
+                                    <connections>
+                                        <action selector="presentAppIDHelpAlert:" destination="hv7-Ar-voT" eventType="touchUpInside" id="m2N-Lx-adY"/>
+                                    </connections>
+                                </button>
+                            </subviews>
+                            <constraints>
+                                <constraint firstItem="NHb-0F-cHZ" firstAttribute="leading" secondItem="LLv-8I-6Of" secondAttribute="trailing" constant="5" id="Fpk-zD-6AK"/>
+                                <constraint firstItem="LLv-8I-6Of" firstAttribute="top" secondItem="HYs-co-nJZ" secondAttribute="top" id="UVG-MJ-SPb"/>
+                                <constraint firstItem="LLv-8I-6Of" firstAttribute="centerX" secondItem="HYs-co-nJZ" secondAttribute="centerX" id="Wc0-ul-McA"/>
+                                <constraint firstItem="NHb-0F-cHZ" firstAttribute="centerY" secondItem="LLv-8I-6Of" secondAttribute="centerY" id="wSf-Lv-NC0"/>
+                            </constraints>
+                            <connections>
+                                <outlet property="button" destination="NHb-0F-cHZ" id="wOh-Ee-jhN"/>
+                                <outlet property="textLabel" destination="LLv-8I-6Of" id="t2D-f1-5pC"/>
+                            </connections>
+                        </collectionReusableView>
                         <connections>
                             <outlet property="dataSource" destination="hv7-Ar-voT" id="YOx-f4-chF"/>
                             <outlet property="delegate" destination="hv7-Ar-voT" id="1PN-pf-cZK"/>
@@ -797,6 +830,7 @@ World</string>
         <image name="MyApps" width="20" height="20"/>
         <image name="News" width="19" height="20"/>
         <image name="Settings" width="20" height="20"/>
+        <image name="questionmark.circle" catalog="system" width="64" height="60"/>
         <namedColor name="Background">
             <color red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
         </namedColor>

AltStore/My Apps/MyAppsComponents.swift

@@ -30,6 +30,12 @@ class InstalledAppsCollectionHeaderView: UICollectionReusableView
     @IBOutlet var button: UIButton!
 }
 
+class InstalledAppsCollectionFooterView: UICollectionReusableView
+{
+    @IBOutlet var textLabel: UILabel!
+    @IBOutlet var button: UIButton!
+}
+
 class NoUpdatesCollectionViewCell: UICollectionViewCell
 {
     @IBOutlet var blurView: UIVisualEffectView!

AltStore/My Apps/MyAppsViewController.swift

@@ -615,7 +615,7 @@ private extension MyAppsViewController
     
     func presentSideloadingAlert(completion: @escaping (Bool) -> Void)
     {
-        let alertController = UIAlertController(title: NSLocalizedString("Sideload Apps (Beta)", comment: ""), message: NSLocalizedString("You may only install 10 apps + app extensions per week due to Apple's restrictions.\n\nIf you encounter an app that is not able to be sideloaded, please report the app to support@altstore.io.", comment: ""), preferredStyle: .alert)
+        let alertController = UIAlertController(title: NSLocalizedString("Sideload Apps (Beta)", comment: ""), message: NSLocalizedString("If you encounter an app that is not able to be sideloaded, please report the app to support@altstore.io.", comment: ""), preferredStyle: .alert)
         alertController.addAction(UIAlertAction(title: RSTSystemLocalizedString("OK"), style: .default, handler: { (action) in
             completion(true)
         }))
@@ -700,6 +700,19 @@ private extension MyAppsViewController
         
         self.present(alertController, animated: true, completion: nil)
     }
+    
+    @IBAction func presentAppIDHelpAlert(_ sender: UIButton)
+    {
+        let message = NSLocalizedString("""
+Each app and app extension installed with AltStore must register an App ID with Apple. Apple limits free developer accounts to 10 App IDs at a time.
+
+App IDs expire after one week, but AltStore will automatically renew them for all installed apps. Once an App ID expires, it no longer counts toward your total.
+""", comment: "")
+        
+        let alertController = UIAlertController(title: NSLocalizedString("What are App IDs?", comment: ""), message: message, preferredStyle: .alert)
+        alertController.addAction(.ok)
+        self.present(alertController, animated: true, completion: nil)
+    }
 }
 
 private extension MyAppsViewController
@@ -805,7 +818,7 @@ extension MyAppsViewController
             
             return headerView
             
-        case .installedApps:
+        case .installedApps where kind == UICollectionView.elementKindSectionHeader:
             let headerView = collectionView.dequeueReusableSupplementaryView(ofKind: UICollectionView.elementKindSectionHeader, withReuseIdentifier: "InstalledAppsHeader", for: indexPath) as! InstalledAppsCollectionHeaderView
             
             UIView.performWithoutAnimation {
@@ -821,6 +834,29 @@ extension MyAppsViewController
             }
             
             return headerView
+            
+        case .installedApps:
+            let installedApps = self.installedAppsDataSource.fetchedResultsController.fetchedObjects ?? []
+            let registeredAppIDs = installedApps.filter { $0.team?.isActiveTeam ?? false }.reduce(0) { (sum, installedApp) in
+                // Each InstallApp has it's own app ID, plus one for each app extension.
+                return sum + 1 + installedApp.appExtensions.count
+            }
+            
+            let maximumAppIDCount = 10
+            let remainingAppIDs = max(maximumAppIDCount - registeredAppIDs, 0)
+            
+            let footerView = collectionView.dequeueReusableSupplementaryView(ofKind: UICollectionView.elementKindSectionFooter, withReuseIdentifier: "InstalledAppsFooter", for: indexPath) as! InstalledAppsCollectionFooterView
+            
+            if remainingAppIDs == 1
+            {
+                footerView.textLabel.text = String(format: NSLocalizedString("1 App ID Remaining", comment: ""))
+            }
+            else
+            {
+                footerView.textLabel.text = String(format: NSLocalizedString("%@ App IDs Remaining", comment: ""), NSNumber(value: remainingAppIDs))
+            }
+            
+            return footerView
         }
     }
     
@@ -889,6 +925,29 @@ extension MyAppsViewController: UICollectionViewDelegateFlowLayout
         }
     }
     
+    func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForFooterInSection section: Int) -> CGSize
+    {
+        let section = Section.allCases[section]
+        switch section
+        {
+        case .noUpdates: return .zero
+        case .updates: return .zero
+        case .installedApps:
+            #if BETA
+            if let team = DatabaseManager.shared.activeTeam(), team.type == .free
+            {
+                return CGSize(width: collectionView.bounds.width, height: 44)
+            }
+            else
+            {
+                return .zero
+            }
+            #else
+            return .zero
+            #endif
+        }
+    }
+    
     func collectionView(_ myCV: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAt section: Int) -> UIEdgeInsets
     {
         let section = Section.allCases[section]

AltStore/Operations/AuthenticationOperation.swift

@@ -164,6 +164,12 @@ class AuthenticationOperation: ResultOperation<(ALTSigner, ALTAppleAPISession)>
                     team.isActiveTeam = false
                 }
                 
+                if let altStoreApp = InstalledApp.fetchAltStore(in: context), altStoreApp.team == nil
+                {
+                    // No team assigned to AltStore app yet, so assume this team was used to originally install it.
+                    altStoreApp.team = team
+                }
+                
                 // Save
                 try context.save()