Code cleanup

Nextcloud Cookbook iOS Client/Views/ReusableViews/CollapsibleView.swift

@@ -0,0 +1,50 @@
+//
+//  CollapsibleView.swift
+//  Nextcloud Cookbook iOS Client
+//
+//  Created by Vincent Meilinger on 15.12.23.
+//
+
+import Foundation
+import SwiftUI
+
+struct CollapsibleView<C: View, T: View>: View {
+    @State var titleColor: Color = .white
+    @State var isCollapsed: Bool = true
+    
+    @State var content: () -> C
+    @State var title: () -> T
+    
+    @State private var rotationAngle: Double = -90
+    
+    var body: some View {
+        VStack(alignment: .leading) {
+            Button {
+                withAnimation(.easeInOut(duration: 0.2)) {
+                    isCollapsed.toggle()
+                    if isCollapsed {
+                        rotationAngle += 90
+                    } else {
+                        rotationAngle -= 90
+                    }
+                }
+                rotationAngle = isCollapsed ? -90 : 0
+            } label: {
+                HStack {
+                    Image(systemName: "chevron.down")
+                        .bold()
+                        .rotationEffect(Angle(degrees: rotationAngle))
+                    title()
+                }.foregroundStyle(titleColor)
+            }
+            
+            if !isCollapsed {
+                content()
+                    .padding(.top)
+            }
+        }
+        .onAppear {
+            rotationAngle = isCollapsed ? -90 : 0
+        }
+    }
+}