feat: 📁 Create new folders (#31)

Reconnect/Model/BrowserModel.swift

@@ -33,6 +33,7 @@ class BrowserModel {
     private var navigationStack = NavigationStack()
     var state: State = .loading
     var selection = Set<FileServer.DirectoryEntry.ID>()
+    var lastError: Error? = nil
 
     init() {
         guard fileServer.connect() else {
@@ -102,4 +103,19 @@ class BrowserModel {
         update()
     }
 
+    func newFolder() {
+        guard let path = navigationStack.path else {
+            return
+        }
+        Task {
+            do {
+                try await fileServer.mkdir(path: path + "untitled folder")
+                update()
+            } catch {
+                print("Failed to create new folder with error \(error).")
+                lastError = error
+            }
+        }
+    }
+
 }

Reconnect/Model/ReconnectError.swift

@@ -18,8 +18,11 @@
 
 import Foundation
 
+import plpftp
+
 enum ReconnectError: Error {
     case invalidString
     case unknownMachineType
     case general
+    case rfsvError(rfsv.errs)
 }

Reconnect/PLP/FileServer.swift

@@ -129,6 +129,27 @@ class FileServer {
         }
     }
 
+    func syncQueue_mkdir(path: String) throws {
+        dispatchPrecondition(condition: .onQueue(workQueue))
+        let result = client.mkdir(path)
+        guard result.rawValue == 0 else {
+            throw ReconnectError.rfsvError(result)
+        }
+    }
+
+    func mkdir(path: String) async throws {
+        return try await withCheckedThrowingContinuation { continuation in
+            workQueue.async {
+                do {
+                    try self.syncQueue_mkdir(path: path)
+                    continuation.resume()
+                } catch {
+                    continuation.resume(throwing: error)
+                }
+            }
+        }
+    }
+
     func devlist() -> [String] {
         var devbits: UInt32 = 0
         client.devlist(&devbits)

Reconnect/Views/BrowserView.swift

@@ -83,6 +83,11 @@ struct BrowserView: View {
                         }
                         model.navigate(to: item)
                     }
+                    .contextMenu {
+                        Button("New Folder") {
+                            model.newFolder()
+                        }
+                    }
                 case .error(let error):
                     Text(String(describing: error))
                 }
@@ -136,8 +141,20 @@ struct BrowserView: View {
                     Label("Refresh", systemImage: "arrow.clockwise")
                 }
             }
+
+            ToolbarItem(id: "action") {
+                Menu {
+                    Button("New Folder") {
+                        model.newFolder()
+                    }
+                } label: {
+                    Label("Action", systemImage: "ellipsis.circle")
+                }
+            }
+
         }
         .navigationTitle(model.path?.windowsLastPathComponent ?? "My Psion")
+        .presents($model.lastError)
         .onAppear {
             model.navigate(to: "C:\\")
         }