use crate::*;

/// A cell that takes up 3 rows on its own,
/// but stacks, giving (N+1)*2 rows per N cells.
pub struct Phat<T> {
    pub width:   u16,
    pub height:  u16,
    pub content: T,
    pub colors:  [Color;4],
}
impl<T> Phat<T> {
    pub const LO: &'static str = "▄";
    pub const HI: &'static str = "▀";
    /// A phat line
    pub fn lo (fg: Color, bg: Color) -> impl Render<TuiOut> {
        Fixed::y(1, Tui::fg_bg(fg, bg, RepeatH(Self::LO)))
    }
    /// A phat line
    pub fn hi (fg: Color, bg: Color) -> impl Render<TuiOut> {
        Fixed::y(1, Tui::fg_bg(fg, bg, RepeatH(Self::HI)))
    }
}
impl<T: Render<TuiOut>> Content<TuiOut> for Phat<T> {
    fn content (&self) -> Option<impl Render<TuiOut> + '_> {
        let [fg, bg, hi, lo] = self.colors;
        let top = Fixed::y(1, Self::lo(bg, hi));
        let low = Fixed::y(1, Self::hi(bg, lo));
        let content = Tui::fg_bg(fg, bg, &self.content);
        Some(Min::xy(
            self.width,
            self.height,
            Bsp::s(top, Bsp::n(low, Fill::xy(content)))
        ))
    }
}