Display statistics for password

password/view/detail/DetailView.swift

@@ -63,6 +63,15 @@ struct DetailView: View {
                         elapsedTime = -1
                     }
             }
+            HStack {
+                Spacer()
+                Text("Attempts: \(viewModel.statistics.totalCount)")
+                Spacer()
+                Text("Successful: \(viewModel.statistics.successCount) (\(viewModel.statistics.successRate, specifier: "%.2f")%)")
+                Spacer()
+                Text("Avg. time: \(viewModel.statistics.averageTime, specifier: "%.2f")s")
+                Spacer()
+            }
         }
         .padding()
     }

password/view/detail/DetailViewModel.swift

@@ -8,6 +8,13 @@
 import Foundation
 import SwiftData
 
+struct PasswordAttemptStatistics {
+    let totalCount: Int
+    let successCount: Int
+    let successRate: Double
+    let averageTime: Double
+}
+
 class DetailViewModel: ObservableObject {
         
     let passwordID: UUID
@@ -19,6 +26,29 @@ class DetailViewModel: ObservableObject {
     @Published var passwordKC: PasswordKC
     @Published var passwordAttempts: [PasswordAttempt]
     
+    var statistics: PasswordAttemptStatistics {
+        guard !passwordAttempts.isEmpty else {
+            return PasswordAttemptStatistics(
+                totalCount: 0,
+                successCount: 0,
+                successRate: 0.00,
+                averageTime: 0.00
+            )
+        }
+
+        let totalCount = passwordAttempts.count
+        let successCount = passwordAttempts.filter { $0.isSuccessful }.count
+        let successRate = Double(successCount) / Double(totalCount) * 100
+        let averageTime = passwordAttempts.count > 0 ? passwordAttempts.reduce(0) { $0 + $1.typingTime } / Double(passwordAttempts.count) : 0
+
+        return PasswordAttemptStatistics(
+            totalCount: totalCount,
+            successCount: successCount,
+            successRate: successRate,
+            averageTime: averageTime
+        )
+    }
+
     @MainActor
     init(context: ModelContext, passwordID id: UUID) {
         self.context = context