errors

src/tui/widgets/last_error.rs

@@ -0,0 +1,50 @@
+use std::{cell::RefCell, rc::Rc, time::Instant};
+
+use ratatui::widgets::{Paragraph, Widget};
+
+use crate::tui::widgets::styled::Styled;
+
+#[derive(Clone)]
+pub struct LastError {
+    inner: Rc<RefCell<Option<(String, Instant)>>>,
+}
+
+impl LastError {
+    pub fn new() -> Self {
+        Self {
+            inner: Rc::new(RefCell::new(None)),
+        }
+    }
+
+    pub fn set(&self, s: String) {
+        *self.inner.borrow_mut() = Some((s, Instant::now()));
+    }
+
+    pub fn check_expired(&self) {
+        let inner = self.inner.borrow();
+        if let Some((_, time)) = *inner {
+            if Instant::now().duration_since(time).as_secs_f64() > 1.0 {
+                drop(inner);
+                *self.inner.borrow_mut() = None;
+            }
+        }
+    }
+}
+
+impl Widget for Styled<'_, LastError> {
+    fn render(self, area: ratatui::prelude::Rect, buf: &mut ratatui::prelude::Buffer)
+    where
+        Self: Sized,
+    {
+        Paragraph::new(
+            self.inner
+                .inner
+                .borrow()
+                .as_ref()
+                .map(|i| i.0.replace("\n", ""))
+                .unwrap_or_default(),
+        )
+        .style(self.styles.error)
+        .render(area, buf);
+    }
+}