docker.js
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docker.js
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	import { Screen, List, Input, colors, box, keys, codes, confirm, alert, pad, padCenter, truncate } from './tuey.js';
	import { $ } from 'ant:shell';

	const screen = new Screen({ fullscreen: true, hideCursor: true });

	let containers = [];

	const state = {
	searchMode: false,
	searchQuery: '',
	lastError: ''
	};

	const searchInput = new Input({ width: 30, placeholder: 'Search containers...' });

	const containerList = new List({
	items: [],
	x: 2,
	y: 6,
	width: 60,
	height: 10,
	selectedStyle: colors.bgBlue + colors.bold + colors.white,
	renderItem: container => formatContainer(container)
	});

	function runDocker(command) {
	const result = $(command);
	if (result.exitCode !== 0) {
	const output = result.text().trim();
	state.lastError = output \|\| `Command failed: ${command}`;
	return null;
	}
	return result.text();
	}

	function isRunning(container) {
	return container.status && container.status.startsWith('Up');
	}

	function formatStatus(container) {
	if (!container.status) {
	return colors.dim + 'UNKNOWN' + codes.reset;
	}
	if (isRunning(container)) {
	return colors.green + 'UP' + codes.reset;
	}
	if (container.status.startsWith('Exited')) {
	return colors.red + 'EXIT' + codes.reset;
	}
	return colors.yellow + truncate(container.status.split(' ')[0].toUpperCase(), 6) + codes.reset;
	}

	function formatContainer(container) {
	const width = containerList.width;
	const nameWidth = 20;
	const imageWidth = 20;
	const statusWidth = 8;
	const portsWidth = Math.max(10, width - nameWidth - imageWidth - statusWidth - 6);

	const name = pad(truncate(container.name \|\| '', nameWidth), nameWidth);
	const image = pad(truncate(container.image \|\| '', imageWidth), imageWidth);
	const ports = pad(truncate(container.ports \|\| '', portsWidth), portsWidth);

	return `${name} ${image} ${formatStatus(container)} ${ports}`;
	}

	function parseContainers(output) {
	const lines = output.trim() ? output.trim().split('\n') : [];
	return lines.map(line => {
	const [id, name, image, status, ports] = line.split('\t');
	return {
	id: id \|\| '',
	name: name \|\| '',
	image: image \|\| '',
	status: status \|\| '',
	ports: ports \|\| ''
	};
	});
	}

	function applyFilter() {
	let filtered = containers;
	if (state.searchQuery) {
	const q = state.searchQuery.toLowerCase();
	filtered = containers.filter(container => {
	return container.name.toLowerCase().includes(q) \|\| container.image.toLowerCase().includes(q) \|\| container.id.toLowerCase().includes(q);
	});
	}
	containerList.setItems(filtered);
	}

	function refreshContainers() {
	state.lastError = '';
	const output = runDocker("docker ps -a --format '{{.ID}}\t{{.Names}}\t{{.Image}}\t{{.Status}}\t{{.Ports}}'");
	if (output === null) {
	containers = [];
	containerList.setItems([]);
	return;
	}
	containers = parseContainers(output);
	applyFilter();
	}

	function drawHeader() {
	const title = ' Docker TUI - Containers ';
	const w = screen.width;
	screen.write(0, 0, colors.bgBlue + colors.bold + colors.white + padCenter(title, w) + codes.reset);

	const statusLine = state.lastError
	? colors.bgRed + colors.white + pad(` Error: ${truncate(state.lastError, w - 8)} `, w) + codes.reset
	: colors.bgGray + colors.white + pad(' Connected to docker CLI ', w) + codes.reset;
	screen.write(0, 1, statusLine);
	}

	function drawFooter() {
	const w = screen.width;
	const help = ' Up/Down:Navigate Enter:Start/Stop s:Start t:Stop R:Restart r:Refresh /:Search q:Quit ';
	screen.write(0, screen.height - 1, colors.bgGray + colors.white + pad(help, w) + codes.reset);
	}

	function drawList() {
	const listWidth = screen.width > 95 ? 62 : Math.max(40, screen.width - 4);
	containerList.width = listWidth;
	containerList.height = Math.max(5, screen.height - 8);
	containerList.x = 2;
	containerList.y = state.searchMode ? 7 : 6;

	const heading = pad('Name', 20) + ' ' + pad('Image', 20) + ' ' + pad('State', 8) + ' ' + pad('Ports', listWidth - 20 - 20 - 8 - 3);
	screen.write(2, 5, colors.bold + heading + codes.reset);

	if (state.searchMode) {
	screen.write(2, 3, colors.cyan + 'Search: ' + codes.reset + searchInput.render());
	} else {
	screen.write(2, 3, colors.bold + `Containers - ${containerList.items.length} total` + codes.reset);
	}

	containerList.render(screen);

	if (screen.width > 95) {
	drawDetailsPanel(listWidth + 4);
	}
	}

	function drawDetailsPanel(x) {
	const selected = containerList.getSelected();
	const width = screen.width - x - 2;
	if (!selected \|\| width < 20) return;

	const panelHeight = 10;
	screen.box(x, 5, width, panelHeight, box.rounded, 'Details', colors.bold + colors.cyan);
	screen.write(x + 2, 7, `${colors.bold}Name:${codes.reset} ${truncate(selected.name, width - 12)}`);
	screen.write(x + 2, 8, `${colors.bold}ID:${codes.reset} ${truncate(selected.id, width - 10)}`);
	screen.write(x + 2, 9, `${colors.bold}Image:${codes.reset} ${truncate(selected.image, width - 12)}`);
	screen.write(x + 2, 10, `${colors.bold}Status:${codes.reset} ${truncate(selected.status, width - 13)}`);
	screen.write(x + 2, 11, `${colors.bold}Ports:${codes.reset} ${truncate(selected.ports \|\| '-', width - 12)}`);
	}

	function render() {
	screen.clear();
	drawHeader();
	drawList();
	drawFooter();
	screen.render();
	}

	function runAction(action, container) {
	const verb = action.charAt(0).toUpperCase() + action.slice(1);
	confirm(screen, {
	title: `${verb} Container`,
	message: `Run: docker ${action} ${container.name}?`
	}).then(confirmed => {
	if (!confirmed) {
	render();
	return;
	}

	const output = runDocker(`docker ${action} ${container.id}`);
	if (output === null) {
	alert(screen, {
	title: 'Docker Error',
	message: state.lastError \|\| 'Docker command failed.'
	}).then(() => {
	refreshContainers();
	render();
	});
	return;
	}

	refreshContainers();
	render();
	});
	}

	function toggleStartStop(container) {
	if (isRunning(container)) {
	runAction('stop', container);
	} else {
	runAction('start', container);
	}
	}

	function handleKey(key) {
	if (screen.hasModal()) return;

	if (state.searchMode) {
	if (key === keys.ESCAPE) {
	state.searchMode = false;
	state.searchQuery = '';
	searchInput.clear();
	applyFilter();
	} else if (key === keys.ENTER) {
	state.searchMode = false;
	state.searchQuery = searchInput.value;
	applyFilter();
	} else {
	searchInput.handleKey(key);
	state.searchQuery = searchInput.value;
	applyFilter();
	}
	render();
	return;
	}

	switch (key) {
	case 'q':
	case keys.CTRL_C:
	confirm(screen, {
	title: 'Quit',
	message: 'Exit Docker TUI?'
	}).then(confirmed => {
	if (confirmed) {
	screen.exit(0);
	}
	render();
	});
	return;
	case '/':
	state.searchMode = true;
	searchInput.clear();
	render();
	return;
	case 'r':
	refreshContainers();
	render();
	return;
	case keys.ENTER: {
	const selected = containerList.getSelected();
	if (selected) {
	toggleStartStop(selected);
	}
	return;
	}
	case 's': {
	const selected = containerList.getSelected();
	if (selected) {
	runAction('start', selected);
	}
	return;
	}
	case 't': {
	const selected = containerList.getSelected();
	if (selected) {
	runAction('stop', selected);
	}
	return;
	}
	case 'R': {
	const selected = containerList.getSelected();
	if (selected) {
	runAction('restart', selected);
	}
	return;
	}
	}

	if (containerList.handleKey(key)) {
	render();
	}
	}

	screen.onKey(handleKey);
	screen.onResize(() => render());

	screen.start();
	refreshContainers();
	render();

	setInterval(() => {
	if (!screen.hasModal()) {
	refreshContainers();
	render();
	}
	}, 4000);

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Mime Type: application/javascript
Expires: Thu, Mar 26, 7:57 PM (1 d, 20 h)
Storage Engine: blob
Storage Format: Raw Data
Storage Handle: 512184
Default Alt Text: docker.js (7 KB)

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