I am looking to create a set of code which meets all of the requirements listed in the picture given below. Here's what I have so far:

class OrderedNotebook: Notebook $\{$

$//$ Properties

private var orderedKeys: $[$String$]=[]$

$//$ Override add method to maintain order

override func add$($note: Note$)\{$

super.add$($note: note$)$

if $!$orderedKeys.contains$($note$.$id$)\{$

orderedKeys.append$($note$.$id$)$

$\}$

$\}$

$//$ Override remove method to maintain order

override func remove$($id: String$)->$ Note? $\{$

if let removedNote $=$ super.remove$($id: id$)\{$

if let index $=$ orderedKeys.firstIndex$($of: id$)\{$

orderedKeys.remove$($at: index$)$

$\}$

return removedNote

$\}$

return nil

$\}$

$//$ Method to sort notes

func sortNotes$($by closure: $($Note$,$ Note$)->$ Bool$)\{$

orderedKeys.sort $\{$ id$1,$ id$2$ in

guard let note$1=$ self$[$id$1],$ let note$2=$ self$[$id$2]$ else $\{$ return false $\}$

return closure$($note$1,$ note$2)$

$\}$

$\}$

$//$ Override to get all notes in order

override func getAllNotes$()->[$Note$]\{$

return orderedKeys.compactMap $\{$ self$[$$$0]\}$

$\}$

$\}$

Can you please make whatever additions$/$modifications needed to the code to ensure it meets all requirements laid out in the photo and operates correctly? Just to be clear, this means down to every last detail given in those instructions, as to make sure it all matches up in the end. If I've done anything wrong on that end so far, please do correct it as part of the final product you dish out. Thank you.