awstools: Fixed some bugs with the item view UI model

- The item view model is now being updated when the item itself is being updated
- Fixed a NPE when the item view model receives a nil item

internal/common/ui/commandctrl/commandctrl.go

@@ -60,10 +60,7 @@ func (c *CommandController) Alias(commandName string) Command {
 			return events.SetError(errors.New("no such command: " + commandName))
 		}
 
-		if len(args) > 1 {
+		return command(args)
-			return command(args[1:])
-		}
-		return command([]string{})
 	}
 }
 

internal/dynamo-browse/ui/model.go

@@ -28,6 +28,7 @@ type Model struct {
 
 	root      tea.Model
 	tableView *dynamotableview.Model
+	itemView  *dynamoitemview.Model
 }
 
 func NewModel(rc *controllers.TableReadController, wc *controllers.TableWriteController, cc *commandctrl.CommandController) Model {
@@ -122,6 +123,7 @@ func NewModel(rc *controllers.TableReadController, wc *controllers.TableWriteCon
 		tableSelect:          tableSelect,
 		root:                 root,
 		tableView:            dtv,
+		itemView:             div,
 	}
 }
 
@@ -132,7 +134,7 @@ func (m Model) Init() tea.Cmd {
 func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 	switch msg := msg.(type) {
 	case controllers.ResultSetUpdated:
-		m.tableView.Refresh()
+		return m, m.tableView.Refresh()
 	case tea.KeyMsg:
 		if !m.statusAndPrompt.InPrompt() && !m.tableSelect.Visible() {
 			switch msg.String() {

internal/dynamo-browse/ui/teamodels/dynamoitemview/model.go

@@ -85,6 +85,7 @@ func (m *Model) Resize(w, h int) layout.ResizingModel {
 func (m *Model) updateViewportToSelectedMessage() {
 	if m.selectedItem == nil {
 		m.viewport.SetContent("")
+		return
 	}
 
 	viewportContent := &strings.Builder{}

internal/dynamo-browse/ui/teamodels/dynamotableview/model.go

@@ -197,13 +197,13 @@ func (m *Model) selectedItem() (itemTableRow, bool) {
 func (m *Model) postSelectedItemChanged() tea.Msg {
 	item, ok := m.selectedItem()
 	if !ok {
-		return nil
+		return dynamoitemview.NewItemSelected{ResultSet: item.resultSet, Item: nil}
 	}
 
 	return dynamoitemview.NewItemSelected{ResultSet: item.resultSet, Item: item.item}
 }
 
-func (m *Model) Refresh() {
+func (m *Model) Refresh() tea.Cmd {
-
 	m.table.SetRows(m.rows)
+	return m.postSelectedItemChanged
 }