use ratatui::style::{Modifier, Style};
use ratatui::text::{Line, Span};
use ratatui::widgets::{Block, Borders, Paragraph};
use crate::tui::theme::{self, BG, BG_PANEL, BORDER, FG, FG_DIM, FG_MUTED, YELLOW};
#[derive(Clone, Copy, PartialEq, Eq)]
pub(super) enum FooterMode {
List,
Columns,
Detail,
DetailSelection,
StatusChoice,
PriorityChoice,
}
pub(super) fn footer_bar(
mode: FooterMode,
width: u16,
marked_task_count: usize,
) -> Paragraph<'static> {
let mut spans = marked_task_indicator(marked_task_count);
let indicator_width = spans
.iter()
.map(|span| span.content.chars().count() as u16)
.sum::<u16>();
for (keys, label) in footer_hints(mode, width.saturating_sub(indicator_width)) {
spans.extend(key(keys));
spans.push(cmd(mode, label));
}
let hints = Line::from(spans);
Paragraph::new(hints)
.block(
Block::new()
.borders(Borders::TOP)
.border_style(Style::new().fg(BORDER)),
)
.style(Style::new().fg(FG).bg(BG))
}
fn marked_task_indicator(count: usize) -> Vec<Span<'static>> {
if count == 0 {
return Vec::new();
}
let mut spans = vec![Span::styled(
format!(" ● {count} marked "),
Style::new().fg(YELLOW).add_modifier(Modifier::BOLD),
)];
spans.extend(key("t C"));
spans.push(Span::styled(" clear all ", Style::new().fg(FG_DIM)));
spans
}
fn footer_hints(mode: FooterMode, width: u16) -> &'static [(&'static str, &'static str)] {
match mode {
FooterMode::List if width >= 148 => &[
("j/k", "move"),
("Enter", "detail"),
("a", "add"),
("n", "note"),
("s", "status"),
("p", "projects"),
("d", "done"),
("x", "cancel"),
("Space", "mark"),
("e l", "labels"),
("g", "scope"),
("v", "views"),
("f", "filter"),
("o", "order"),
("?", "more"),
("q", "quit"),
],
FooterMode::List if width >= 96 => &[
("j/k", "move"),
("Enter", "detail"),
("a", "add"),
("s", "status"),
("p", "projects"),
("g/v/f/o", "menus"),
("?", "more"),
("q", "quit"),
],
FooterMode::List => &[
("j/k", "move"),
("Enter", "detail"),
("a", "add"),
("?", "more"),
("q", "quit"),
],
FooterMode::Columns if width >= 120 => &[
("h/j/k/l", "select"),
("</>", "move"),
("m", "lane"),
("Space", "mark"),
("u", "undo"),
("Enter", "detail"),
("?", "more"),
("q", "quit"),
],
FooterMode::Columns if width >= 80 => &[
("h/j/k/l", "select"),
("</>", "move"),
("m", "lane"),
("Space", "mark"),
("?", "more"),
],
FooterMode::Columns => &[
("h/l", "select"),
("</>", "move"),
("m", "lane"),
("?", "more"),
],
FooterMode::DetailSelection if width >= 72 => &[
("y", "copy selection"),
("Esc", "clear selection"),
("j/k Pg", "scroll"),
],
FooterMode::DetailSelection => &[("y", "copy"), ("Esc", "clear")],
FooterMode::Detail if width >= 128 => &[
("j/k Pg", "scroll"),
("[/]", "task"),
("e", "edit"),
("s", "status"),
("e p", "priority"),
("n", "note"),
("t d", "done"),
("t y/Y", "copy"),
("?", "more"),
("Esc", "back"),
],
FooterMode::Detail if width >= 72 => &[
("j/k Pg", "scroll"),
("[/]", "task"),
("e", "edit"),
("s/e p", "status/priority"),
("n", "note"),
("?", "more"),
("Esc", "back"),
],
FooterMode::Detail => &[
("j/k", "scroll"),
("[/]", "task"),
("e", "edit"),
("?", "more"),
("Esc", "back"),
],
FooterMode::StatusChoice => &[
("i", "inbox"),
("b", "backlog"),
("t", "todo"),
("a", "active"),
("d", "done"),
("x", "canceled"),
("Esc", "cancel"),
],
FooterMode::PriorityChoice => &[
("n", "none"),
("l", "low"),
("m", "medium"),
("h", "high"),
("u", "urgent"),
("Esc", "cancel"),
],
}
}
fn key(label: &str) -> Vec<Span<'static>> {
let key_style = Style::new()
.fg(FG_MUTED)
.bg(BG_PANEL)
.add_modifier(Modifier::BOLD);
let separator_style = Style::new().fg(FG_DIM).bg(BG_PANEL);
let edge_style = Style::new().fg(BG_PANEL).bg(BG);
let mut spans = vec![Span::styled("".to_string(), edge_style)];
for (index, part) in label.split('/').enumerate() {
if index > 0 {
spans.push(Span::styled("/".to_string(), separator_style));
}
spans.push(Span::styled(part.to_string(), key_style));
}
spans.push(Span::styled("".to_string(), edge_style));
spans
}
fn cmd(mode: FooterMode, label: &str) -> Span<'static> {
let style = match mode {
FooterMode::StatusChoice => theme::status_style(label),
FooterMode::PriorityChoice => theme::priority_style(label),
FooterMode::List
| FooterMode::Columns
| FooterMode::Detail
| FooterMode::DetailSelection => Style::new().fg(FG_DIM),
};
Span::styled(format!(" {label} "), style)
}
#[cfg(test)]
mod tests {
use super::*;
use ratatui::Terminal;
use ratatui::backend::TestBackend;
fn buffer_text(backend: &TestBackend) -> String {
backend
.buffer()
.content
.iter()
.map(|cell| cell.symbol())
.collect()
}
#[test]
fn detail_footer_lists_scroll_and_task_navigation_keys() {
let backend = TestBackend::new(128, 3);
let mut terminal = Terminal::new(backend).unwrap();
terminal
.draw(|frame| frame.render_widget(footer_bar(FooterMode::Detail, 128, 0), frame.area()))
.unwrap();
let rendered = buffer_text(terminal.backend());
assert!(rendered.contains("j/k Pg"));
assert!(rendered.contains("[/]"));
assert!(rendered.contains("task"));
assert!(rendered.contains("s"));
assert!(rendered.contains("e p"));
assert!(rendered.contains("more"));
}
#[test]
fn footer_shows_marked_task_scope() {
let backend = TestBackend::new(100, 3);
let mut terminal = Terminal::new(backend).unwrap();
terminal
.draw(|frame| frame.render_widget(footer_bar(FooterMode::List, 100, 3), frame.area()))
.unwrap();
let rendered = buffer_text(terminal.backend());
assert!(rendered.contains("● 3 marked"));
assert!(rendered.contains("t C"));
assert!(rendered.contains("clear all"));
}
#[test]
fn footer_hides_marked_task_scope_when_marks_are_empty() {
let backend = TestBackend::new(100, 3);
let mut terminal = Terminal::new(backend).unwrap();
terminal
.draw(|frame| frame.render_widget(footer_bar(FooterMode::List, 100, 0), frame.area()))
.unwrap();
let rendered = buffer_text(terminal.backend());
assert!(!rendered.contains("marked"));
}
#[test]
fn detail_selection_footer_advertises_copy_and_clear() {
let hints = footer_hints(FooterMode::DetailSelection, 80);
assert_eq!(
hints,
&[
("y", "copy selection"),
("Esc", "clear selection"),
("j/k Pg", "scroll"),
]
);
}
#[test]
fn list_footer_expands_intent_labels_when_wide() {
let hints = footer_hints(FooterMode::List, 148);
assert!(hints.contains(&("a", "add")));
assert!(hints.contains(&("s", "status")));
assert!(hints.contains(&("p", "projects")));
assert!(hints.contains(&("d", "done")));
assert!(hints.contains(&("x", "cancel")));
assert!(hints.contains(&("Space", "mark")));
assert!(hints.contains(&("e l", "labels")));
assert!(hints.contains(&("g", "scope")));
assert!(hints.contains(&("v", "views")));
assert!(hints.contains(&("?", "more")));
assert!(!hints.contains(&("p", "priority")));
assert!(!hints.contains(&("g", "views")));
assert!(!hints.iter().any(|(_, label)| *label == "prefixes"));
}
#[test]
fn columns_footer_prioritizes_selection_and_move_keys() {
let hints = footer_hints(FooterMode::Columns, 120);
assert!(hints.contains(&("h/j/k/l", "select")));
assert!(hints.contains(&("</>", "move")));
assert!(hints.contains(&("m", "lane")));
assert!(hints.contains(&("Space", "mark")));
assert!(hints.contains(&("u", "undo")));
}
#[test]
fn footer_collapses_to_core_hints_when_narrow() {
let hints = footer_hints(FooterMode::List, 60);
assert_eq!(
hints,
&[
("j/k", "move"),
("Enter", "detail"),
("a", "add"),
("?", "more"),
("q", "quit"),
]
);
}
}