piopulse 0.2.1

pub mod channels;
pub mod config;
pub mod footer;
pub mod header;
pub mod modal;
pub mod plotter;
pub mod serial;
pub mod sidebar;
pub mod theme;
pub mod translation;
pub mod utils;
pub mod widgets;

pub use translation::tr;
pub use utils::center_rect;

use crate::app::{ActiveTab, App};
use ratatui::{
    Frame,
    layout::{Constraint, Direction, Layout, Rect},
    style::{Modifier, Style},
    text::{Line, Span},
    widgets::{Block, Borders, Paragraph},
};

pub fn draw(f: &mut Frame, app: &mut App) {
    // Main layout: Vertical split for Header, Main Body, Footer
    let chunks = Layout::default()
        .direction(Direction::Vertical)
        .constraints([
            Constraint::Length(2), // Header
            Constraint::Min(10),   // Main Area
            Constraint::Length(1), // Footer
        ])
        .split(f.size());

    app.layout_zones.header = chunks[0];

    header::draw(f, app, chunks[0]);
    draw_main_area(f, app, chunks[1]);
    footer::draw(f, app, chunks[2]);

    if app.show_exit_menu {
        let area = center_rect(48, 11, f.size());
        app.layout_zones.exit_menu_modal = area;
        modal::draw_exit_menu(f, app, area);
    }

    if app.is_entering_password {
        let area = center_rect(45, 11, f.size());
        app.layout_zones.password_modal = area;
        modal::draw(f, app, area);
    }

    if app.show_tool_settings {
        let area = center_rect(48, 11, f.size());
        app.layout_zones.tool_settings_modal = area;
        modal::draw_tool_settings(f, app, area);
    }

    if app.show_port_menu {
        let port_count = app.channels.len() + 1;
        let height = (port_count + 4).clamp(6, 15) as u16;
        let area = center_rect(50, height, f.size());
        app.layout_zones.port_menu_modal = area;
        modal::draw_port_menu(f, app, area);
    }
}

fn draw_main_area(f: &mut Frame, app: &mut App, area: Rect) {
    let can_show_sidebar = area.width >= 110 && area.height >= 22;
    if app.active_tab == ActiveTab::Flasher && app.show_sidebar && can_show_sidebar {
        // Horizontal split: Left Workspace (70%), Right Panel (30%)
        let chunks = Layout::default()
            .direction(Direction::Horizontal)
            .constraints([Constraint::Percentage(70), Constraint::Percentage(30)])
            .split(area);

        draw_workspace(f, app, chunks[0]);
        sidebar::draw(f, app, chunks[1]);
    } else {
        // Workspace takes full screen width on all other tabs, or when sidebar is hidden
        draw_workspace(f, app, area);
    }
}

fn draw_workspace(f: &mut Frame, app: &mut App, area: Rect) {
    // Vertical split for Tabs Bar and Content
    let chunks = Layout::default()
        .direction(Direction::Vertical)
        .constraints([Constraint::Length(2), Constraint::Min(5)])
        .split(area);

    // Render Tabs
    let lang = &app.tool_config.language;
    let tab_titles = tab_titles_for_width(lang, chunks[0].width);

    let active_index = match app.active_tab {
        ActiveTab::Serial => 0,
        ActiveTab::Plotter => 1,
        ActiveTab::Widgets => 2,
        ActiveTab::Flasher => 3,
        ActiveTab::Configuration => 4,
    };

    let mut tab_spans = Vec::new();
    for (idx, title) in tab_titles.iter().enumerate() {
        let is_active = active_index == idx;
        let is_hovered = app.hover_tab == Some(idx);
        let style = if is_hovered {
            Style::default()
                .fg(if is_active {
                    theme::mocha::CRUST
                } else {
                    theme::CATPPUCCIN_MOCHA.text
                })
                .bg(if is_active {
                    theme::CATPPUCCIN_MOCHA.accent
                } else {
                    theme::CATPPUCCIN_MOCHA.selection_bg
                })
                .add_modifier(Modifier::BOLD)
        } else if is_active {
            Style::default()
                .fg(theme::CATPPUCCIN_MOCHA.accent)
                .add_modifier(Modifier::BOLD)
        } else {
            Style::default().fg(theme::CATPPUCCIN_MOCHA.text_muted)
        };

        tab_spans.push(Span::styled(*title, style));
        if idx + 1 < tab_titles.len() {
            tab_spans.push(Span::styled(
                " | ",
                Style::default().fg(theme::CATPPUCCIN_MOCHA.border),
            ));
        }
    }

    let tabs = Paragraph::new(Line::from(tab_spans))
        .block(
            Block::default()
                .borders(Borders::BOTTOM)
                .border_style(Style::default().fg(theme::CATPPUCCIN_MOCHA.border)),
        )
        .style(Style::default().bg(theme::mocha::MANTLE));

    f.render_widget(tabs, chunks[0]);
    app.layout_zones.tabs = chunks[0];

    // Render Tab Content
    match app.active_tab {
        ActiveTab::Serial => serial::draw(f, app, chunks[1]),
        ActiveTab::Plotter => plotter::draw(f, app, chunks[1]),
        ActiveTab::Flasher => channels::draw(f, app, chunks[1]),
        ActiveTab::Configuration => {
            app.layout_zones.config_table = chunks[1];
            config::draw(f, app, chunks[1]);
        }
        ActiveTab::Widgets => {
            app.layout_zones.monitor_panel = chunks[1];
            widgets::draw(f, app, chunks[1]);
        }
    }
}

pub fn tab_titles_for_width(lang: &str, width: u16) -> [&'static str; 5] {
    use unicode_width::UnicodeWidthStr;

    let full = [
        tr("tab_serial", lang),
        tr("tab_plot", lang),
        tr("tab_dash", lang),
        tr("tab_flash", lang),
        tr("tab_settings", lang),
    ];
    let compact = [" [1] ", " [2] ", " [3] ", " [4] ", " [5] "];
    let full_width: usize = full
        .iter()
        .map(|title| UnicodeWidthStr::width(*title))
        .sum();
    let separator_width = UnicodeWidthStr::width(" | ") * 4;

    if full_width + separator_width <= width as usize {
        full
    } else {
        compact
    }
}