from textual.app import App
from textual.widgets import TabbedContent, TabPane, TextArea

class SimpleCLITool(App):

    async def on_mount(self):
        # Create TabbedContent with two tabs
        tabbed_content = TabbedContent()

        # First Tab with its content
        first_tab = TabPane("First Tab")
        first_tab_content = TextArea("This is the content of the first tab. " * 10, auto_width=True)
        await first_tab.mount(first_tab_content)

        # Second Tab with its content
        second_tab = TabPane("Second Tab")
        second_tab_content = TextArea("This is the content of the second tab. " * 10, auto_width=True)
        await second_tab.mount(second_tab_content)

        # Add tabs to TabbedContent
        tabbed_content.add_tab(first_tab, "First Tab")
        tabbed_content.add_tab(second_tab, "Second Tab")

        # Dock the TabbedContent into the app's view
        await self.view.dock(tabbed_content)

SimpleCLITool.run()