shellql 0.1.7-beta

use ratatui::{
    Frame,
    layout::{Constraint, Layout, Rect},
    style::{Color, Style},
    text::{Line, Span},
    widgets::Paragraph,
};

use crate::tui::ui::{
    centered_rect::centered_rect_with_min,
    home::overlays::{binding_line, open_popup, render_dismiss_hint},
};

pub fn render_help(frame: &mut Frame, area: Rect) {
    // Longest line ≈ 31 chars ("  d" padded to 14 + "delete connection" 17).
    let min_w = 33u16.min(area.width);
    let min_h = 18u16.min(area.height); // 15 content lines + 2 borders + hint
    let popup_area = centered_rect_with_min(46, 72, min_w, min_h, area);
    let (block, inner) = open_popup(frame, popup_area, "Help");
    frame.render_widget(block, popup_area);

    let [content_area, hint_area] =
        Layout::vertical([Constraint::Min(0), Constraint::Length(1)]).areas(inner);

    let nav_header = Style::default().fg(Color::Blue).bold();

    let key_style = Style::default().fg(Color::White).bold();

    let desc_style = Style::default().fg(Color::Gray);
    let sep_style = Style::default().fg(Color::DarkGray);

    let lines = vec![
        Line::from(""),
        Line::from(Span::styled("  Navigation", nav_header)),
        Line::from(Span::styled("  ──────────", sep_style)),
        binding_line("  j / ↓", "move down", key_style, desc_style),
        binding_line("  k / ↑", "move up", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  Actions", nav_header)),
        Line::from(Span::styled("  ───────", sep_style)),
        binding_line("  ↵", "connect", key_style, desc_style),
        binding_line("  a", "add connection", key_style, desc_style),
        binding_line("  d", "delete connection", key_style, desc_style),
        binding_line("  ?", "toggle this help", key_style, desc_style),
        binding_line("  :", "command line", key_style, desc_style),
        binding_line("  q", "quit", key_style, desc_style),
        binding_line("  Ctrl+C", "force quit", key_style, desc_style),
    ];

    frame.render_widget(Paragraph::new(lines), content_area);
    render_dismiss_hint(frame, hint_area, "Esc/q  <close> ");
}

pub fn render_dashboard_help(frame: &mut Frame, area: Rect) {
    // Longest line ≈ 48 chars ("  i" padded to 14 + "edit cell (Table) / insert (Query)" 34).
    let min_w = 50u16.min(area.width);
    let min_h = 74u16.min(area.height); // 71 content lines + 2 borders + hint
    let popup_area = centered_rect_with_min(60, 80, min_w, min_h, area);
    let (block, inner) = open_popup(frame, popup_area, "Dashboard Help");
    frame.render_widget(block, popup_area);

    let [content_area, hint_area] =
        Layout::vertical([Constraint::Min(0), Constraint::Length(1)]).areas(inner);

    let nav_header = Style::default().fg(Color::Blue).bold();
    let key_style = Style::default().fg(Color::White).bold();
    let desc_style = Style::default().fg(Color::Gray);
    let sep_style = Style::default().fg(Color::DarkGray);

    let lines = vec![
        Line::from(""),
        Line::from(Span::styled("  Navigation", nav_header)),
        Line::from(Span::styled("  ──────────", sep_style)),
        binding_line("  j / ↓", "move down / next row", key_style, desc_style),
        binding_line("  k / ↑", "move up / previous row", key_style, desc_style),
        binding_line(
            "  h / ←",
            "move left / previous column",
            key_style,
            desc_style,
        ),
        binding_line("  l / →", "move right / next column", key_style, desc_style),
        binding_line("  gg", "go to top", key_style, desc_style),
        binding_line("  G", "go to bottom", key_style, desc_style),
        binding_line("  Ctrl+U", "half-page up", key_style, desc_style),
        binding_line("  Ctrl+D", "half-page down", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  Pane Navigation", nav_header)),
        Line::from(Span::styled("  ───────────────", sep_style)),
        binding_line("  Ctrl+H/J/K/L", "move to pane", key_style, desc_style),
        binding_line("  Ctrl+←↓↑→", "move to pane", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  Modes", nav_header)),
        Line::from(Span::styled("  ─────", sep_style)),
        binding_line("  v", "visual row mode", key_style, desc_style),
        binding_line("  V", "visual row mode", key_style, desc_style),
        binding_line("  Ctrl+V", "visual column mode", key_style, desc_style),
        binding_line(
            "  i",
            "edit cell (Table) / insert (Query)",
            key_style,
            desc_style,
        ),
        binding_line("  Esc", "exit mode", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  History", nav_header)),
        Line::from(Span::styled("  ───────", sep_style)),
        binding_line("  -", "go back in pane history", key_style, desc_style),
        binding_line("  _", "go forward in pane history", key_style, desc_style),
        binding_line("  :back", "go back in pane history", key_style, desc_style),
        binding_line(
            "  :forward",
            "go forward in pane history",
            key_style,
            desc_style,
        ),
        Line::from(""),
        Line::from(Span::styled("  Tabs", nav_header)),
        Line::from(Span::styled("  ────", sep_style)),
        binding_line("  :new tab", "new tab", key_style, desc_style),
        binding_line("  :tab next", "next tab", key_style, desc_style),
        binding_line("  :tab prev", "previous tab", key_style, desc_style),
        binding_line("  :tab close", "close current tab", key_style, desc_style),
        binding_line("  :tab <id>", "go to tab id", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  Editing", nav_header)),
        Line::from(Span::styled("  ───────", sep_style)),
        binding_line("  o / O", "stage row below / above", key_style, desc_style),
        binding_line(
            "  :insert [above|below]",
            "stage row insert",
            key_style,
            desc_style,
        ),
        binding_line("  dd", "stage row for delete", key_style, desc_style),
        binding_line(
            "  d + visual",
            "stage selection for delete",
            key_style,
            desc_style,
        ),
        binding_line("  u", "undo last staged change", key_style, desc_style),
        binding_line("  :w", "commit staged changes", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  Search", nav_header)),
        Line::from(Span::styled("  ──────", sep_style)),
        binding_line("  /", "search forward", key_style, desc_style),
        binding_line("  ?", "search backward", key_style, desc_style),
        binding_line("  n", "next match", key_style, desc_style),
        binding_line("  N", "previous match", key_style, desc_style),
        binding_line("  :noh", "clear search highlights", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  Commands", nav_header)),
        Line::from(Span::styled("  ────────", sep_style)),
        binding_line("  : + Tab", "list all commands", key_style, desc_style),
        binding_line("  :! <sql>", "execute SQL directly", key_style, desc_style),
        binding_line("  :connect", "switch database", key_style, desc_style),
        binding_line("  :disconnect", "return to home", key_style, desc_style),
        binding_line("  :q", "close pane / quit", key_style, desc_style),
        binding_line(
            "  :new pane [view]",
            "new pane (vsplit)",
            key_style,
            desc_style,
        ),
        binding_line("  :split / :vsplit", "split pane", key_style, desc_style),
        binding_line("  :table <name>", "show table view", key_style, desc_style),
        binding_line("  :editor", "open SQL editor", key_style, desc_style),
        binding_line("  :results", "show query results", key_style, desc_style),
        binding_line("  :where <expr>", "filter rows", key_style, desc_style),
        binding_line("  :order <col> [desc]", "sort rows", key_style, desc_style),
        binding_line(
            "  :select <cols>",
            "show only named columns",
            key_style,
            desc_style,
        ),
        binding_line(
            "  :reset",
            "clear filter/sort/columns",
            key_style,
            desc_style,
        ),
        binding_line("  :full", "toggle pane fullscreen", key_style, desc_style),
        Line::from(""),
        Line::from(Span::styled("  Misc", nav_header)),
        Line::from(Span::styled("  ────", sep_style)),
        binding_line("  K", "peek cell value", key_style, desc_style),
        binding_line("  Ctrl+C", "force quit", key_style, desc_style),
    ];

    frame.render_widget(Paragraph::new(lines), content_area);
    render_dismiss_hint(frame, hint_area, "Esc/q  <close> ");
}