chronis 0.5.3

Event-sourced task CLI powered by the AllSource embedded database (all-source.xyz)
Documentation 
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use ratatui::{
    Frame,
    layout::{Constraint, Layout, Rect},
    style::{Color, Modifier, Style},
    text::Line,
    widgets::{Block, Borders, List, ListItem, ListState},
};

use super::super::app::{App, KanbanColumn};
use crate::domain::{repository::TaskRepository, task::TaskStatus};

pub fn render<R: TaskRepository>(f: &mut Frame, area: Rect, app: &App<R>) {
    let columns = Layout::horizontal([
        Constraint::Percentage(33),
        Constraint::Percentage(34),
        Constraint::Percentage(33),
    ])
    .split(area);

    render_column(
        f,
        columns[0],
        app,
        TaskStatus::Open,
        KanbanColumn::Open,
        "Open",
    );
    render_column(
        f,
        columns[1],
        app,
        TaskStatus::InProgress,
        KanbanColumn::InProgress,
        "In Progress",
    );
    render_column(
        f,
        columns[2],
        app,
        TaskStatus::Done,
        KanbanColumn::Done,
        "Done",
    );
}

fn render_column<R: TaskRepository>(
    f: &mut Frame,
    area: Rect,
    app: &App<R>,
    status: TaskStatus,
    column: KanbanColumn,
    title: &str,
) {
    let is_active = app.kanban_column == column;
    let border_color = if is_active {
        Color::Cyan
    } else {
        Color::DarkGray
    };

    let tasks = app.tasks_by_status(status);
    let count = tasks.len();

    let items: Vec<ListItem> = tasks
        .iter()
        .map(|task| {
            let title_text = if task.title.len() > 25 {
                format!("{}...", &task.title[..task.title.floor_char_boundary(22)])
            } else {
                task.title.clone()
            };

            let claimed = task
                .claimed_by
                .as_deref()
                .map(|c| format!(" @{c}"))
                .unwrap_or_default();

            ListItem::new(vec![
                Line::styled(
                    format!("{} [{}]", task.id, task.priority),
                    Style::default().fg(Color::Yellow),
                ),
                Line::raw(format!("  {title_text}{claimed}")),
            ])
        })
        .collect();

    let block = Block::default()
        .title(format!(" {title} ({count}) "))
        .borders(Borders::ALL)
        .border_style(Style::default().fg(border_color));

    let list = List::new(items)
        .block(block)
        .highlight_style(
            Style::default()
                .bg(Color::DarkGray)
                .add_modifier(Modifier::BOLD),
        )
        .highlight_symbol("> ");

    let idx = app.kanban_indices[column as usize];
    let mut state = ListState::default();
    if is_active && count > 0 {
        state.select(Some(idx.min(count.saturating_sub(1))));
    }

    f.render_stateful_widget(list, area, &mut state);
}