Implemented the "copyItem(from: to: )" function for the FileService service in the library target.

Sources/Library/Protocols/FileServicing.swift

@@ -8,6 +8,7 @@ public protocol FileServicing {
     
     // MARK: Functions
     
+    func copyItem(from source: URL, to destination: URL) async throws (FileServiceError)
     func createFolder(at location: URL) async throws (FileServiceError)
     func deleteItem(at location: URL) async throws (FileServiceError)
     func isItemExists(at location: URL) async throws (FileServiceError) -> Bool
@@ -18,6 +19,7 @@ public protocol FileServicing {
 
 public enum FileServiceError: Error, Equatable {
     case folderNotCreated
+    case itemNotCopied
     case itemAlreadyExists
     case itemNotDeleted
     case itemNotExists

Sources/Library/Services/FileService.swift

@@ -21,6 +21,21 @@ public struct FileService: FileServicing {
     }
     
     // MARK: Functions
+    
+    public func copyItem(from source: URL, to destination: URL) async throws (FileServiceError) {
+        guard try await isItemExists(at: source) else {
+            throw FileServiceError.itemNotExists
+        }
+        guard try await !isItemExists(at: destination) else {
+            throw FileServiceError.itemAlreadyExists
+        }
+        
+        do {
+            try fileManager.copyItem(at: source, to: destination)
+        } catch {
+            throw FileServiceError.itemNotCopied
+        }
+    }
 
     public func createFolder(at location: URL) async throws (FileServiceError) {
         guard try await !isItemExists(at: location) else {