feat(ui): add NBFC config dropdown with laptop model detection

src/main.rs

@@ -1,3 +1,103 @@
-fn main() {
-    println!("Hello, world!");
+use eframe::egui;
+use std::fs;
+use std::process::Command;
+
+struct Veltrix {
+    configs: Vec<String>,
+    selected: Option<usize>,
+    laptop_model: String,
+}
+
+impl Veltrix {
+    fn name() -> &'static str {
+        "Veltrix"
+    }
+
+    fn new(_cc: &eframe::CreationContext<'_>) -> Self {
+        let configs = get_nbfc_list();
+        let laptop_model = read_laptop_model();
+
+        let selected = configs.iter().position(|c| c == &laptop_model);
+
+        Self {
+            configs,
+            selected,
+            laptop_model,
+        }
+    }
+}
+
+impl eframe::App for Veltrix {
+    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
+        egui::CentralPanel::default().show(ctx, |ui| {
+            ui.heading("Welcome to Veltrix !\n");
+            if self.selected.is_none() {
+                ui.label("Please select a config");
+            } else {
+                ui.label(format!("Laptop model: {}", self.laptop_model));
+            }
+
+            if !self.configs.is_empty() {
+                let selected_text = self
+                    .selected
+                    .map(|i| self.configs[i].as_str())
+                    .unwrap_or("Select NBFC Config");
+
+                egui::ComboBox::from_label("Config List\n")
+                    .selected_text(selected_text)
+                    .show_ui(ui, |ui| {
+                        for (i, config) in self.configs.iter().enumerate() {
+                            if ui
+                                .selectable_label(self.selected == Some(i), config)
+                                .clicked()
+                            {
+                                self.selected = Some(i);
+                            }
+                        }
+                    });
+
+                if let Some(i) = self.selected {
+                    ui.colored_label(egui::Color32::GREEN, format!("Selected Config: {}", self.configs[i]));
+                } else {
+                    ui.colored_label(egui::Color32::YELLOW, "No config selected!");
+                }
+            } else {
+                ui.colored_label(egui::Color32::RED, "No config found!");
+            }
+        });
+    }
+}
+
+fn main() -> eframe::Result<()> {
+    let native_options = eframe::NativeOptions {
+        viewport: egui::ViewportBuilder::default().with_inner_size((600.0, 700.0)),
+        ..eframe::NativeOptions::default()
+    };
+
+    eframe::run_native(
+        Veltrix::name(),
+        native_options,
+        Box::new(|cc| Ok(Box::new(Veltrix::new(cc)))),
+    )
+}
+
+fn read_laptop_model() -> String {
+    fs::read_to_string("/sys/class/dmi/id/product_name")
+        .unwrap_or_else(|_| "Unknown".into())
+        .trim()
+        .to_string()
+}
+
+fn get_nbfc_list() -> Vec<String> {
+    let output = Command::new("nbfc")
+        .arg("config")
+        .arg("--list")
+        .output()
+        .expect("failed to execute nbfc");
+
+    String::from_utf8_lossy(&output.stdout)
+        .lines()
+        .map(|line| line.trim().to_string())
+        .filter(|line| !line.is_empty())
+        .collect()
 }