stynx-code-tui 3.3.1

Terminal user interface with ratatui for interactive sessions
Documentation 
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use ratatui::layout::{Constraint, Layout, Rect};

pub struct LayoutResult {
    pub sidebar: Option<Rect>,
    pub messages: Rect,
    pub thinking: Option<Rect>,
    pub input: Rect,
    pub footer: Rect,
}

pub struct MainLayout;

impl MainLayout {
    pub const SIDEBAR_WIDTH: u16 = 42;

    pub fn split(
        area: Rect,
        sidebar_visible: bool,
        input_lines: usize,
        thinking_lines: usize,
    ) -> LayoutResult {
        let (sidebar, main) = if sidebar_visible && area.width > Self::SIDEBAR_WIDTH + 20 {
            let chunks = Layout::horizontal([
                Constraint::Length(Self::SIDEBAR_WIDTH),
                Constraint::Min(1),
            ])
            .split(area);
            (Some(chunks[0]), chunks[1])
        } else {
            (None, area)
        };

        let content = input_lines.clamp(1, 8) as u16;
        let input_h = (content + 2).min(main.height.saturating_sub(4));
        let thinking_h: u16 = if thinking_lines == 0 {
            0
        } else {
            (1 + thinking_lines.min(4)) as u16
        };

        if thinking_h > 0 {
            let rows = Layout::vertical([
                Constraint::Min(1),
                Constraint::Length(thinking_h),
                Constraint::Length(input_h),
                Constraint::Length(1),
            ])
            .split(main);
            LayoutResult {
                sidebar,
                messages: rows[0],
                thinking: Some(rows[1]),
                input: rows[2],
                footer: rows[3],
            }
        } else {
            let rows = Layout::vertical([
                Constraint::Min(1),
                Constraint::Length(input_h),
                Constraint::Length(1),
            ])
            .split(main);
            LayoutResult {
                sidebar,
                messages: rows[0],
                thinking: None,
                input: rows[1],
                footer: rows[2],
            }
        }
    }
}