implement root check

tui/src/main.rs

@@ -15,12 +15,18 @@ use std::{
 use crate::theme::Theme;
 use clap::Parser;
 use crossterm::{
-    event::{self, DisableMouseCapture, Event, KeyEventKind},
+    event::{self, DisableMouseCapture, Event, KeyCode, KeyEvent, KeyEventKind},
     style::ResetColor,
     terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
     ExecutableCommand,
 };
-use ratatui::{backend::CrosstermBackend, Terminal};
+use ratatui::{
+    backend::CrosstermBackend,
+    layout::{Alignment, Constraint, Layout},
+    style::Stylize,
+    widgets::{Paragraph, Wrap},
+    Terminal,
+};
 use state::AppState;
 
 // Linux utility toolbox
@@ -36,12 +42,6 @@ struct Args {
 }
 
 fn main() -> io::Result<()> {
-    if sudo::check() != sudo::RunningAs::User {
-        eprintln!("Error: This program is not intended to be run with elevated privileges.");
-        eprintln!("Please run this program as a regular user to ensure proper security and functionality.");
-        std::process::exit(1);
-    }
-
     let args = Args::parse();
 
     let mut state = AppState::new(args.theme, args.override_validation);
@@ -67,6 +67,69 @@ fn run(
     terminal: &mut Terminal<CrosstermBackend<io::Stdout>>,
     state: &mut AppState,
 ) -> io::Result<()> {
+    if sudo::check() == sudo::RunningAs::Root {
+        terminal.draw(|frame| {
+            let root_warn = Paragraph::new(
+                r#"
+!!!!!!!!!!!!!! YOU ARE ABOUT TO RUN LINUTIL AS ROOT !!!!!!!!!!!!!!
+
+This utility prioritizes compatibility with non-root environments.
+Some scripts may work without any issues, some may not.
+You have been warned!
+
+!!!!!!!!!!!!!!!!!!!!!! PROCEED WITH CAUTION !!!!!!!!!!!!!!!!!!!!!!
+
+Press [y] to continue, [n] to abort
+"#,
+            )
+            .on_black()
+            .white()
+            .alignment(Alignment::Center)
+            .wrap(Wrap { trim: true });
+
+            let rects = Layout::vertical([
+                Constraint::Fill(1),
+                Constraint::Length(10),
+                Constraint::Fill(1),
+            ])
+            .split(frame.area());
+
+            let centered = rects[1];
+
+            frame.render_widget(root_warn, centered);
+        })?;
+
+        loop {
+            match event::read()? {
+                Event::Key(
+                    KeyEvent {
+                        code: KeyCode::Char('y'),
+                        ..
+                    }
+                    | KeyEvent {
+                        code: KeyCode::Char('Y'),
+                        ..
+                    },
+                ) => {
+                    break;
+                }
+                Event::Key(
+                    KeyEvent {
+                        code: KeyCode::Char('n'),
+                        ..
+                    }
+                    | KeyEvent {
+                        code: KeyCode::Char('N'),
+                        ..
+                    },
+                ) => {
+                    return Ok(());
+                }
+                _ => {}
+            }
+        }
+    }
+
     loop {
         terminal.draw(|frame| state.draw(frame)).unwrap();
         // Wait for an event