huddle 0.5.0

Decentralized, terminal-native chat rooms — LAN mDNS or direct dial, Megolm-encrypted.
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use ratatui::prelude::*;
use ratatui::widgets::{Block, Borders, Padding, Paragraph};

use crate::ui::centered_rect;

/// Render the startup info/welcome card. Purely informational — any key
/// dismisses it.
pub fn render_welcome(f: &mut Frame) {
    let bg = Block::default().style(Style::default().bg(Color::Reset));
    f.render_widget(bg, f.area());

    let area = centered_rect(110, 22, f.area());
    let block = Block::default()
        .borders(Borders::ALL)
        .border_style(Style::default().fg(Color::Cyan))
        .padding(Padding::uniform(1))
        .title(Span::styled(
            " huddle — welcome ",
            Style::default()
                .fg(Color::Cyan)
                .add_modifier(Modifier::BOLD),
        ));

    let g = |s: &'static str| Span::styled(s, Style::default().fg(Color::DarkGray));
    let w = |s: &'static str| Span::styled(s, Style::default().fg(Color::White));
    let y = |s: &'static str| {
        Span::styled(
            s,
            Style::default().fg(Color::Yellow).add_modifier(Modifier::BOLD),
        )
    };

    let lines = vec![
        Line::from(""),
        Line::from(Span::styled(
            "  decentralized, terminal-native chat rooms.",
            Style::default().fg(Color::White),
        )),
        Line::from(g("  no servers, no accounts, no cloud.")),
        Line::from(""),
        Line::from(vec![w("  what you can do")]),
        bullet("start a room", "public or end-to-end encrypted (Megolm)"),
        bullet(
            "browse the LAN",
            "rooms on your Wi-Fi appear automatically (mDNS)",
        ),
        bullet(
            "dial across networks",
            "press [d] in the lobby to connect by IP:port",
        ),
        bullet(
            "stay reconnected",
            "dialed peers are remembered and re-dialed next launch",
        ),
        bullet(
            "history",
            "messages persist locally per room across restarts",
        ),
        Line::from(""),
        Line::from(vec![
            g("  "),
            Span::styled(
                "heads up: ",
                Style::default()
                    .fg(Color::Magenta)
                    .add_modifier(Modifier::BOLD),
            ),
            g("learning project, not audited. don't use for real secrets."),
        ]),
        Line::from(""),
        Line::from(vec![
            y("  press any key"),
            g(" to continue   ·   "),
            y("?"),
            g(" for help inside the app   ·   "),
            y("--mode direct"),
            g(" hides you from mDNS"),
        ]),
    ];

    let para = Paragraph::new(lines).block(block);
    f.render_widget(para, area);
}

fn bullet(head: &'static str, tail: &'static str) -> Line<'static> {
    Line::from(vec![
        Span::styled("    • ", Style::default().fg(Color::Yellow)),
        Span::styled(
            format!("{:<22}", head),
            Style::default()
                .fg(Color::White)
                .add_modifier(Modifier::BOLD),
        ),
        Span::styled(tail, Style::default().fg(Color::DarkGray)),
    ])
}