feat: delete the selected note

Sources/Conjure/NotesController.swift

@@ -76,6 +76,7 @@ final class NotesController: NSViewController, NSTextViewDelegate {
         actions.selectNote = { [weak self] in self?.switchNote($0) }
         actions.newNote = { [weak self] in self?.newNote() }
         actions.browseNotes = { [weak self] in self?.browseNotes() }
+        actions.deleteNote = { [weak self] in self?.deleteNote() }
         let tools = [
             ("textformat.size", "Heading"), ("bold", "Bold"), ("italic", "Italic"),
             ("strikethrough", "Strikethrough"), ("chevron.left.forwardslash.chevron.right", "Inline code"),
@@ -509,6 +510,33 @@ final class NotesController: NSViewController, NSTextViewDelegate {
         catch { showError(error) }
     }
 
+    private func deleteNote() {
+        guard let window = view.window, window.attachedSheet == nil, let id = selectedID else { return }
+        actions.close(animated: false)
+        let alert = NSAlert()
+        alert.alertStyle = .warning
+        alert.messageText = "Delete “\(noteTitle.stringValue)”?"
+        alert.informativeText = "This permanently deletes the note and its embedded images. This cannot be undone."
+        alert.addButton(withTitle: "Cancel")
+        alert.addButton(withTitle: "Delete Note").hasDestructiveAction = true
+        alert.beginSheetModal(for: window) { [weak self] response in
+            guard let self else { return }
+            defer { self.focusEditor() }
+            guard response == .alertSecondButtonReturn, self.selectedID == id,
+                  self.save(), let store = self.store else { return }
+            do {
+                try store.delete(id: id)
+                self.selectedID = nil
+                self.defaults.removeObject(forKey: "selectedNote")
+                self.editor.setMarkdownContents(NSAttributedString(string: ""))
+                self.editor.undoManager?.removeAllActions()
+                self.editor.isEditable = false
+                self.noteTitle.stringValue = "Untitled Note"
+                self.select(try store.notes.first?.id ?? store.create())
+            } catch { self.showError(error) }
+        }
+    }
+
     private func switchNote(_ id: UUID) {
         guard save() else { return }
         select(id)
@@ -532,7 +560,7 @@ final class NotesController: NSViewController, NSTextViewDelegate {
 
     private func showError(_ error: Error) {
         status.isHidden = false
-        status.stringValue = "Couldn’t save or load notes: \(error.localizedDescription)"
+        status.stringValue = "Couldn’t save, load, or delete notes: \(error.localizedDescription)"
         status.toolTip = status.stringValue
         status.textColor = .systemRed
     }