use lv_tui::prelude::*;
use lv_tui::widgets::*;

const DIFF: &str = "\
--- old.txt
+++ new.txt
@@ -1,6 +1,7 @@
 fn main() {
-    let x = 1;
+    let x = 2;
     println!(\"hello\");
+    println!(\"world\");
-    // old comment
+    // new comment
 }
@@ -10,3 +11,3 @@
 fn other() {
-    let y = 10;
+    let y = 20;
 }
";

struct App { view: DiffView }

impl App {
    fn new() -> Self { Self { view: DiffView::new(DIFF) } }
}

impl Component for App {
    fn render(&self, cx: &mut RenderCx) { self.view.render(cx); }
    fn event(&mut self, e: &Event, cx: &mut EventCx) {
        if e.is_key(Key::Char('q')) { cx.quit(); return; }
        self.view.event(e, cx);
    }
    fn layout(&mut self, r: lv_tui::geom::Rect, cx: &mut lv_tui::component::LayoutCx) { self.view.layout(r, cx); }
    fn measure(&self, c: lv_tui::layout::Constraint, _cx: &mut lv_tui::component::MeasureCx) -> lv_tui::geom::Size {
        lv_tui::geom::Size { width: c.max.width, height: c.max.height }
    }
    fn focusable(&self) -> bool { false }
}

fn main() -> lv_tui::Result<()> {
    lv_tui::app::App::new(App::new()).run()
}
