feat: replace Leaderboard with Highscore

QuizApp/ViewModels/ViewModel.swift

@@ -91,4 +91,26 @@ class ViewModel: ObservableObject {
             return 0
         }
     }
+    
+    func highscore(for category: String) -> Int {
+        let dict = UserDefaults.standard.dictionary(forKey: "categoryHighscores") as? [String: Int] ?? [:]
+        return dict[category] ?? 0
+    }
+    
+    @discardableResult
+    func updateHighscoreIfNeeded() -> Bool {
+        guard let category = selectedCategory else { return false }
+        var dict = UserDefaults.standard.dictionary(forKey: "categoryHighscores") as? [String: Int] ?? [:]
+        let oldScore = dict[category] ?? 0
+        if score > oldScore {
+            dict[category] = score
+            UserDefaults.standard.set(dict, forKey: "categoryHighscores")
+            return true
+        }
+        return false
+    }
+    
+    func allHighscores() -> [String: Int] {
+        UserDefaults.standard.dictionary(forKey: "categoryHighscores") as? [String: Int] ?? [:]
+    }
 }

QuizApp/Views/CategorySelectionView.swift

@@ -10,11 +10,7 @@ import SwiftUI
 struct CategorySelectionView: View {
     @StateObject private var viewModel = ViewModel()
     @AppStorage("globalScore") var globalScore: Int = 0
-    @State private var boardData: [[String: Any]] = []
     
-    private func loadBoardData() {
-        boardData = UserDefaults.standard.array(forKey: "leaderboard") as? [[String: Any]] ?? []
-    }
     
     var body: some View {
         NavigationStack {
@@ -78,9 +74,14 @@ struct CategorySelectionView: View {
                                     .foregroundColor(.blue)
                                     .font(.title2)
                                 
-                                Text(category)
+                                VStack(alignment: .leading, spacing: 4) {
-                                    .font(.headline)
+                                    Text(category)
-                                    .foregroundColor(.primary)
+                                        .font(.headline)
+                                        .foregroundColor(.primary)
+                                    Text("Highscore: \(viewModel.highscore(for: category))")
+                                        .font(.caption)
+                                        .foregroundColor(.secondary)
+                                }
                                 
                                 Spacer()
                                 
@@ -103,58 +104,11 @@ struct CategorySelectionView: View {
                 }
                 .padding(.horizontal)
                 
-                // Scoreboard
-                Text("Leaderboard")
-                    .font(.title2)
-                    .fontWeight(.semibold)
-                    .frame(maxWidth: .infinity, alignment: .leading)
-                    .padding(.horizontal)
-                if !boardData.isEmpty {
-                    VStack(spacing: 8) {
-                        ForEach(Array(boardData.prefix(5).enumerated()), id: \.offset) { index, scoreData in
-                            HStack {
-                                Text("\(index + 1).")
-                                    .font(.headline)
-                                    .foregroundColor(index < 3 ? .orange : .primary)
-                                    .frame(width: 25, alignment: .leading)
-                                
-                                Text(scoreData["name"] as? String ?? "Unbekannt")
-                                    .font(.body)
-                                    .foregroundColor(.primary)
-                                
-                                Spacer()
-                                
-                                Text("\(scoreData["score"] as? Int ?? 0) Punkte")
-                                    .font(.body)
-                                    .fontWeight(.medium)
-                                    .foregroundColor(.blue)
-                            }
-                            .padding(.horizontal, 16)
-                            .padding(.vertical, 8)
-                            .background(
-                                RoundedRectangle(cornerRadius: 12)
-                                    .fill(Color(.systemGray6))
-                                    .overlay(
-                                        RoundedRectangle(cornerRadius: 12)
-                                            .stroke(Color(.systemGray4), lineWidth: 1)
-                                    )
-                                
-                            )
-                        }
-                    }
-                    .padding(.horizontal)
-                } else {
-                    Text("Keine Leadboard Daten...")
-                }
-                
                 Spacer()
             }
             .background(Color.white)
             .navigationBarHidden(true)
             .navigationTitle("Quiz-Auswahl")
-            .onAppear {
-                loadBoardData()
-            }
         }
     }
 }

QuizApp/Views/QuizFinishedView.swift

@@ -10,10 +10,9 @@ import SwiftUI
 struct QuizFinishedView: View {
     let score: Int
     let total: Int
-    @Binding var playerName: String
+    let isNewHighscore: Bool
     let onPlayAgain: () -> Void
     let onBackToCategories: () -> Void
-    let onSaveScore: () -> Void
 
     var body: some View {
         VStack(spacing: 20) {
@@ -23,6 +22,12 @@ struct QuizFinishedView: View {
             Text("Dein Ergebnis: \(score) von \(total) Punkten")
                 .font(.headline)
 
+            if isNewHighscore {
+                Text("🔥 Neuer Highscore!")
+                    .font(.headline)
+                    .foregroundColor(.orange)
+            }
+
             Button("Nochmal spielen", action: onPlayAgain)
                 .padding()
                 .background(Color.blue)
@@ -34,17 +39,7 @@ struct QuizFinishedView: View {
                 .background(Color.gray)
                 .foregroundColor(.white)
                 .cornerRadius(10)
-            
-            TextField("Dein Name:", text: $playerName)
-                .textFieldStyle(RoundedBorderTextFieldStyle())
-                .padding(.horizontal)
-            
-            Button("Score speichern", action: onSaveScore)
-                .padding()
-                .background(playerName.isEmpty ? Color.gray : Color.green)
-                .foregroundColor(.white)
-                .cornerRadius(10)
-                .disabled(playerName.isEmpty)
         }
     }
 }
+

QuizApp/Views/QuizView.swift

@@ -19,8 +19,7 @@ struct QuizView: View {
     @State private var selectedAnswerIndex: Int? = nil
     @State private var isAnswered = false
     @State private var showExitAlert = false
-    @State private var playerName: String = ""
+    @State private var isNewHighscore = false
-    @State private var scoreIsSaved = false
     
     @State private var estimationValue: Double = 0
     @State private var estimationSubmitted: Bool = false
@@ -32,17 +31,15 @@ struct QuizView: View {
                 QuizFinishedView(
                     score: viewModel.score,
                     total: viewModel.questions.count,
-                    playerName: $playerName,
+                    isNewHighscore: isNewHighscore,
                     onPlayAgain: { restartQuiz() },
-                    onBackToCategories: { dismiss() },
+                    onBackToCategories: { dismiss() }
-                    onSaveScore: {
-                        saveScore()
-                        dismiss()
-                    }
                 )
                 .onAppear {
                     AudioServicesPlaySystemSound(1322)
                     score += viewModel.score
+                    // Highscore prüfen/setzen
+                    isNewHighscore = viewModel.updateHighscoreIfNeeded()
                 }
                 .onDisappear {
                     viewModel.isQuizFinished = false
@@ -131,10 +128,7 @@ struct QuizView: View {
             }
         }
         .onAppear {
-            // Fragen für die Kategorie
+            viewModel.loadQuestions(for: category)
-            if viewModel.selectedCategory != category {
-                viewModel.loadQuestions(for: category)
-            }
         }
         .navigationBarBackButtonHidden(!viewModel.isQuizFinished)
         .toolbar {
@@ -206,37 +200,6 @@ struct QuizView: View {
             }
         }
     }
-    
-    private func saveScore() {
-        // Bestehende Scores laden
-        var savedScores = UserDefaults.standard.array(forKey: "leaderboard") as? [[String: Any]] ?? []
-        
-        // Neuen Score hinzufügen
-        let newScore: [String: Any] = [
-            "name": playerName,
-            "score": viewModel.score,
-            "date": Date()
-        ]
-        
-        savedScores.append(newScore)
-        
-        // Nach Score sortieren
-        savedScores.sort { score1, score2 in
-            let score1Value = score1["score"] as? Int ?? 0
-            let score2Value = score2["score"] as? Int ?? 0
-            return score1Value > score2Value
-        }
-        
-        // Nur die besten 10 Scores behalten
-        if savedScores.count > 5 {
-            savedScores = Array(savedScores.prefix(10))
-        }
-        
-        UserDefaults.standard.set(savedScores, forKey: "leaderboard")
-        scoreIsSaved = true
-        
-        print("Score gespeichert: \(playerName) - \(viewModel.score) Punkte")
-    }
 }
 
 #Preview {