Add swipe action to rename cap

Caps/ContentView.swift

@@ -42,6 +42,12 @@ struct ContentView: View {
 
     @State
     var showNewClassifierAlert = false
+    
+    @State
+    var showUpdateCapNameAlert = false
+    
+    @State
+    var updatedCapName = ""
 
     @State
     var isEnteringNewCapName = false
@@ -119,6 +125,14 @@ struct ContentView: View {
                         .onTapGesture {
                             didTap(cap: cap)
                         }
+                        .swipeActions() {
+                            Button {
+                                showRenameWindow(for: cap)
+                            } label: {
+                                Label("Rename", systemSymbol: .pencil)
+                            }
+                            .tint(.purple)
+                        }
                 }
                 .refreshable {
                     refresh()
@@ -252,6 +266,13 @@ struct ContentView: View {
                   primaryButton: .default(Text("Download"), action: downloadClassifier),
                   secondaryButton: .cancel())
         }
+        .alert("Update name", isPresented: $showUpdateCapNameAlert, actions: {
+            TextField("Name", text: $updatedCapName)
+            Button("Update", action: saveNewCapName)
+            Button("Cancel", role: .cancel, action: {})
+        }, message: {
+            Text("Please enter the new name for the cap")
+        })
         .onChange(of: database.image) { newImage in
             if newImage != nil {
                 sortType = .id
@@ -332,6 +353,30 @@ struct ContentView: View {
         removeCapturedImage()
         isEnteringNewCapName = false
     }
+    
+    private func showRenameWindow(for cap: Cap) {
+        updatedCapName = cap.name
+        capIdOfNextPhoto = cap.id
+        showUpdateCapNameAlert = true
+    }
+    
+    private func saveNewCapName() {
+        defer {
+            capIdOfNextPhoto = nil
+            updatedCapName = ""
+        }
+        guard let capId = capIdOfNextPhoto else {
+            return
+        }
+        let name = updatedCapName.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard name != "" else {
+            return
+        }
+        guard database.update(name: name, for: capId) else {
+            
+            return
+        }
+    }
 }
 
 struct ContentView_Previews: PreviewProvider {

Caps/Data/Database.swift

@@ -394,6 +394,17 @@ final class Database: ObservableObject {
         }
         return true
     }
+    
+    func update(name: String, for capId: Int) -> Bool {
+        guard var cap = caps[capId] else {
+            log("Failed to update name for missing cap \(capId)")
+            return false
+        }
+        cap.name = name
+        caps[capId] = cap
+        changedCaps.insert(capId)
+        return true
+    }
 
     // MARK: Uploads