use std::{cell::RefCell, rc::Rc, time::Instant};

use ratatui::widgets::{Paragraph, Widget};

use crate::tui::widgets::styled::Styled;

#[derive(Clone, Debug)]
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);
    }
}