Limits DSi support to beta versions

Delta/Database/DatabaseManager.swift

@@ -136,6 +136,8 @@ extension DatabaseManager
                     filename = "nds.bios"
                     
                 case Game.melonDSDSiBIOSIdentifier:
+                    #if BETA
+                    
                     guard
                         FileManager.default.fileExists(atPath: MelonDSEmulatorBridge.shared.dsiBIOS7URL.path) &&
                         FileManager.default.fileExists(atPath: MelonDSEmulatorBridge.shared.dsiBIOS9URL.path) &&
@@ -145,6 +147,10 @@ extension DatabaseManager
                     
                     filename = "dsi.bios"
                     
+                    #else
+                    return nil
+                    #endif
+                
                 default: filename = "system.bios"
                 }
                 

Delta/Settings/Cores/MelonDSCoreSettingsViewController.swift

@@ -138,6 +138,36 @@ class MelonDSCoreSettingsViewController: UITableViewController
     }
 }
 
+private extension MelonDSCoreSettingsViewController
+{
+    func isSectionHidden(_ section: Section) -> Bool
+    {
+        #if BETA
+        let isBeta = true
+        #else
+        let isBeta = false
+        #endif
+        
+        switch section
+        {
+        case .dsBIOS where Settings.preferredCore(for: .ds) == DS.core:
+            // Using DeSmuME core, which doesn't require BIOS.
+            return true
+        
+        case .dsiBIOS where Settings.preferredCore(for: .ds) == DS.core || !isBeta:
+            // Using DeSmuME core, which doesn't require BIOS,
+            // or using public Delta version, which doesn't support DSi (yet).
+            return true
+            
+        case .changeCore where !isBeta:
+            // Using public Delta version, which only supports melonDS core.
+            return true
+            
+        default: return false
+        }
+    }
+}
+
 private extension MelonDSCoreSettingsViewController
 {
     func openMetadataURL(for key: DeltaCoreMetadata.Key)
@@ -231,6 +261,20 @@ private extension MelonDSCoreSettingsViewController
 
 extension MelonDSCoreSettingsViewController
 {
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection sectionIndex: Int) -> Int
+    {
+        let section = Section(rawValue: sectionIndex)!
+        
+        if isSectionHidden(section)
+        {
+            return 0
+        }
+        else
+        {
+            return super.tableView(tableView, numberOfRowsInSection: sectionIndex)
+        }
+    }
+    
     override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
     {
         let cell = super.tableView(tableView, cellForRowAt: indexPath)
@@ -340,28 +384,30 @@ extension MelonDSCoreSettingsViewController
     
     override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String?
     {
-        switch Section(rawValue: section)!
+        let section = Section(rawValue: section)!
+        
+        if isSectionHidden(section)
         {
-        case .dsBIOS, .dsiBIOS:
+            return nil
-            guard Settings.preferredCore(for: .ds) == MelonDS.core else { return nil }
+        }
-            
+        else
-        default: break
+        {
+            return super.tableView(tableView, titleForHeaderInSection: section.rawValue)
         }
-        
-        return super.tableView(tableView, titleForHeaderInSection: section)
     }
     
     override func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String?
     {
-        switch Section(rawValue: section)!
+        let section = Section(rawValue: section)!
+        
+        if isSectionHidden(section)
         {
-        case .dsBIOS, .dsiBIOS:
+            return nil
-            guard Settings.preferredCore(for: .ds) == MelonDS.core else { return nil }
+        }
-            
+        else
-        default: break
+        {
+            return super.tableView(tableView, titleForFooterInSection: section.rawValue)
         }
-        
-        return super.tableView(tableView, titleForFooterInSection: section)
     }
     
     override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
@@ -372,9 +418,6 @@ extension MelonDSCoreSettingsViewController
             let key = DeltaCoreMetadata.Key.allCases[indexPath.row]
             guard Settings.preferredCore(for: .ds)?.metadata?[key] != nil else { return  0 }
             
-        case .dsBIOS, .dsiBIOS:
-            guard Settings.preferredCore(for: .ds) == MelonDS.core else { return 0 }
-            
         default: break
         }
         
@@ -383,28 +426,30 @@ extension MelonDSCoreSettingsViewController
     
     override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat
     {
-        switch Section(rawValue: section)!
+        let section = Section(rawValue: section)!
+        
+        if isSectionHidden(section)
         {
-        case .dsBIOS, .dsiBIOS:
+            return 1
-            guard Settings.preferredCore(for: .ds) == MelonDS.core else { return 1 }
+        }
-            
+        else
-        default: break
+        {
+            return super.tableView(tableView, heightForHeaderInSection: section.rawValue)
         }
-        
-        return super.tableView(tableView, heightForHeaderInSection: section)
     }
     
     override func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat
     {
-        switch Section(rawValue: section)!
+        let section = Section(rawValue: section)!
+        
+        if isSectionHidden(section)
         {
-        case .dsBIOS, .dsiBIOS:
+            return 1
-            guard Settings.preferredCore(for: .ds) == MelonDS.core else { return 1 }
+        }
-            
+        else
-        default: break
+        {
+            return super.tableView(tableView, heightForFooterInSection: section.rawValue)
         }
-        
-        return super.tableView(tableView, heightForFooterInSection: section)
     }
 }