use ratatui::layout::{Constraint, Direction, Layout, Rect};

pub struct AppLayout {
    pub header: Rect,
    pub main: Rect,
    pub sidebar: Rect,
    pub footer: Rect,
}

impl AppLayout {
    pub fn new(area: Rect) -> Self {
        let vertical = Layout::default()
            .direction(Direction::Vertical)
            .constraints([
                Constraint::Length(3),
                Constraint::Min(10),
                Constraint::Length(3),
            ])
            .split(area);

        let horizontal = Layout::default()
            .direction(Direction::Horizontal)
            .constraints([Constraint::Percentage(70), Constraint::Percentage(30)])
            .split(vertical[1]);

        Self {
            header: vertical[0],
            main: horizontal[0],
            sidebar: horizontal[1],
            footer: vertical[2],
        }
    }
}

pub fn centered_rect(percent_x: u16, percent_y: u16, area: Rect) -> Rect {
    let vertical = Layout::default()
        .direction(Direction::Vertical)
        .constraints([
            Constraint::Percentage((100 - percent_y) / 2),
            Constraint::Percentage(percent_y),
            Constraint::Percentage((100 - percent_y) / 2),
        ])
        .split(area);

    Layout::default()
        .direction(Direction::Horizontal)
        .constraints([
            Constraint::Percentage((100 - percent_x) / 2),
            Constraint::Percentage(percent_x),
            Constraint::Percentage((100 - percent_x) / 2),
        ])
        .split(vertical[1])[1]
}