{% extends "base.jinja2" %}

{% block title %}Scheduled Tasks - DarkflameServer{% endblock %}

{% block content %}
<div class="mb-3">
	<h2 class="mb-1">Scheduled Tasks</h2>
	<p class="text-body-secondary mb-0">Jobs the dashboard runs on its own. Schedules are in UTC; times below are in your time zone.</p>
</div>

<div class="card mb-4">
	<div class="card-body table-responsive">
		<table class="table table-hover align-middle mb-0">
			<thead><tr><th>Task</th><th>Schedule</th><th>Next run</th><th>Last run</th><th class="text-end">Actions</th></tr></thead>
			<tbody id="taskRows"><tr><td colspan="5" class="text-body-secondary">Loading&hellip;</td></tr></tbody>
		</table>
	</div>
</div>

<div class="card">
	<div class="card-header d-flex flex-wrap justify-content-between align-items-center gap-2">
		<h5 class="mb-0">Run history</h5>
		<div><label class="visually-hidden" for="runTask">Task</label><select class="form-select form-select-sm" id="runTask"><option value="">All tasks</option></select></div>
	</div>
	<div class="card-body">
		<table id="runsTable" class="table table-striped table-hover w-100">
			<thead><tr><th>ID</th><th>Task</th><th>Started by</th><th>Started</th><th>Took</th><th>Result</th><th>Summary</th></tr></thead>
			<tbody></tbody>
		</table>
		<p class="small text-body-secondary mb-0">Click a run to see its log. Runs are kept for <code>log_task_days</code> days.</p>
	</div>
</div>

<div class="modal fade" id="taskModal" tabindex="-1" aria-labelledby="taskModalTitle" aria-hidden="true">
	<div class="modal-dialog">
		<form class="modal-content" id="taskForm">
			<div class="modal-header"><h5 class="modal-title" id="taskModalTitle">Task</h5><button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button></div>
			<div class="modal-body">
				<p class="small text-body-secondary" id="taskDescription"></p>
				<div class="mb-3">
					<label class="form-label" for="taskSchedule">Schedule (UTC)</label>
					<div class="input-group">
						<input class="form-control font-monospace" id="taskSchedule" maxlength="128" autocomplete="off" spellcheck="false">
						<button type="button" class="btn btn-outline-secondary" id="taskDefault">Default</button>
					</div>
					<div class="form-text" id="taskDefaultText"></div>
					<div class="small mt-2" id="taskPreview" aria-live="polite"></div>
				</div>
				<details class="small mb-3">
					<summary>Schedule syntax</summary>
					<p class="mt-2 mb-1">Cron: <code>minute hour day-of-month month day-of-week</code>, each <code>*</code>, a number, a range <code>1-5</code>,
						a step <code>*/15</code> or a list <code>1,15</code>. Months and weekdays can be names (<code>jan</code>, <code>mon</code>).</p>
					<ul class="mb-0">
						<li><code>15 0 * * *</code>: every day at 00:15</li>
						<li><code>0 */6 * * *</code>: every 6 hours</li>
						<li><code>0 3 * * sun</code>: Sundays at 03:00</li>
						<li><code>@hourly</code>, <code>@daily</code>, <code>@weekly</code>, <code>@monthly</code></li>
						<li><code>@every 10m</code>: a fixed interval (<code>s</code>, <code>m</code>, <code>h</code> or <code>d</code>)</li>
					</ul>
				</details>
				<div class="form-check form-switch"><input class="form-check-input" type="checkbox" role="switch" id="taskEnabled"><label class="form-check-label" for="taskEnabled">Run on schedule</label></div>
				<div class="form-text">Switched off, it only runs when someone presses Run now.</div>
			</div>
			<div class="modal-footer"><button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button><button type="submit" class="btn btn-primary">Save</button></div>
		</form>
	</div>
</div>

<div class="modal fade" id="logModal" tabindex="-1" aria-labelledby="logModalTitle" aria-hidden="true">
	<div class="modal-dialog modal-lg modal-dialog-scrollable">
		<div class="modal-content">
			<div class="modal-header"><h5 class="modal-title" id="logModalTitle">Log</h5><button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button></div>
			<div class="modal-body">
				<div class="small text-body-secondary mb-2" id="logMeta"></div>
				<pre class="bg-body-tertiary p-2 rounded small mb-0" id="logText" style="white-space: pre-wrap;"></pre>
			</div>
		</div>
	</div>
</div>
{% endblock %}

{% block scripts %}
<script>
(function () {
	var canEdit = DASH.can('tasks_manage');
	var tasks = [], editing = null, serverOffset = 0, livePoll = null;
	var taskModal = new bootstrap.Modal(document.getElementById('taskModal'));
	var logModalEl = document.getElementById('logModal');
	var logModal = new bootstrap.Modal(logModalEl);
	// Names come from the server's enum (Labels); only the colours are kept here
	var STATUS_COLOURS = { 1: 'success', 2: 'danger', 3: 'warning', 4: 'secondary' };

	function statusBadge(status) {
		return fmt.badge(Labels.name('taskStatus', status) || 'Unknown', STATUS_COLOURS[status] || 'secondary');
	}

	function duration(seconds) {
		if (seconds < 1) return 'under 1s';
		if (seconds < 60) return seconds + 's';
		if (seconds < 3600) return Math.floor(seconds / 60) + 'm ' + (seconds % 60) + 's';
		return Math.floor(seconds / 3600) + 'h ' + Math.floor((seconds % 3600) / 60) + 'm';
	}

	// "in 5m" / "3h ago", against the server's clock
	function relative(ts) {
		var diff = ts - (Math.floor(Date.now() / 1000) + serverOffset);
		var text = duration(Math.abs(diff));
		return diff >= 0 ? 'in ' + text : text + ' ago';
	}

	function startedBy(trigger, actor) {
		return trigger === 'manual' ? esc(actor || 'someone') : '<span class="text-body-secondary">schedule</span>';
	}

	function render() {
		var rows = document.getElementById('taskRows');
		rows.innerHTML = tasks.map(function (t) {
			var schedule = t.schedule ? '<code>' + esc(t.schedule) + '</code>' : '<span class="text-body-secondary">By hand only</span>';
			if (t.custom) schedule += ' ' + fmt.badge('Changed', 'info');
			if (!t.valid) schedule += ' ' + fmt.badge('Invalid', 'danger');
			var next = !t.enabled ? fmt.badge('Off', 'secondary')
				: t.next_at ? '<span title="' + esc(fmt.unix(t.next_at)) + '">' + esc(relative(t.next_at)) + '</span><div class="small text-body-secondary">' + esc(fmt.unix(t.next_at)) + '</div>'
				: '<span class="text-body-secondary">-</span>';
			var last = '<span class="text-body-secondary">Never</span>';
			if (t.running) {
				last = '<span class="badge text-bg-primary"><span class="spinner-border spinner-border-sm me-1" aria-hidden="true"></span>Running</span>' +
					' <span class="small text-body-secondary">since ' + esc(relative(t.running.started_at).replace(' ago', '')) + '</span>';
			} else if (t.last_run) {
				last = '<a href="#" class="text-decoration-none" data-run="' + t.last_run.id + '">' + statusBadge(t.last_run.status) + '</a> <span class="small text-body-secondary" title="' +
					esc(fmt.unix(t.last_run.finished_at)) + '">' + esc(relative(t.last_run.finished_at)) + '</span>' +
					(t.last_run.summary ? '<div class="small">' + esc(t.last_run.summary) + '</div>' : '');
			}
			var actions = '';
			if (t.running) actions += '<button class="btn btn-sm btn-outline-secondary me-1" data-live="' + esc(t.name) + '">Log</button>';
			if (canEdit) {
				actions += '<button class="btn btn-sm btn-outline-success me-1" data-start="' + esc(t.name) + '"' + (t.running ? ' disabled' : '') + '>Run now</button>' +
					'<button class="btn btn-sm btn-outline-primary" data-edit="' + esc(t.name) + '">Edit</button>';
			}
			return '<tr><td><div class="fw-semibold">' + esc(t.title) + '</div><div class="small text-body-secondary">' + esc(t.description) + '</div>' +
				'<code class="small">' + esc(t.name) + '</code></td><td>' + schedule + '</td><td class="text-nowrap">' + next + '</td><td>' + last + '</td>' +
				'<td class="text-end text-nowrap">' + actions + '</td></tr>';
		}).join('') || '<tr><td colspan="5" class="text-body-secondary">No tasks.</td></tr>';

		var select = document.getElementById('runTask');
		if (select.options.length === 1) {
			tasks.forEach(function (t) { select.add(new Option(t.title, t.name)); });
		}
	}

	function load() {
		return api.get('/api/tasks').then(function (d) {
			if (!d.success) return;
			serverOffset = d.now - Math.floor(Date.now() / 1000);
			tasks = d.tasks;
			render();
		});
	}

	function findTask(name) {
		return tasks.filter(function (t) { return t.name === name; })[0];
	}

	// ---- Edit ----
	var previewTimer = null;
	function preview() {
		clearTimeout(previewTimer);
		var out = document.getElementById('taskPreview');
		var text = document.getElementById('taskSchedule').value.trim();
		if (!text) { out.innerHTML = '<span class="text-body-secondary">Empty: uses the default' + (editing.default_schedule ? '' : ' (by hand only)') + '.</span>'; return; }
		previewTimer = setTimeout(function () {
			api.post('/api/tasks/preview', { schedule: text }).then(function (d) {
				if (!d.valid) { out.innerHTML = '<span class="text-danger">' + esc(d.error || 'Invalid schedule') + '</span>'; return; }
				out.innerHTML = d.next.length ? 'Next runs: ' + d.next.map(function (t) { return esc(fmt.unix(t)); }).join(', ')
					: '<span class="text-warning">This never runs.</span>';
			});
		}, 250);
	}

	function openEdit(name) {
		editing = findTask(name);
		if (!editing) return;
		document.getElementById('taskModalTitle').textContent = editing.title;
		document.getElementById('taskDescription').textContent = editing.description;
		document.getElementById('taskSchedule').value = editing.schedule;
		document.getElementById('taskDefaultText').textContent = 'Default: ' + (editing.default_schedule || 'by hand only');
		document.getElementById('taskEnabled').checked = editing.enabled;
		preview();
		taskModal.show();
	}

	document.getElementById('taskSchedule').addEventListener('input', preview);
	document.getElementById('taskDefault').addEventListener('click', function () {
		document.getElementById('taskSchedule').value = editing.default_schedule;
		preview();
	});
	document.getElementById('taskForm').addEventListener('submit', function (e) {
		e.preventDefault();
		api.action('/api/tasks/' + encodeURIComponent(editing.name), {
			schedule: document.getElementById('taskSchedule').value,
			enabled: document.getElementById('taskEnabled').checked
		}, 'Saved').then(function () { taskModal.hide(); load(); });
	});

	// ---- Logs ----
	function showLog(title, meta, text) {
		document.getElementById('logModalTitle').textContent = title;
		document.getElementById('logMeta').innerHTML = meta;
		var pre = document.getElementById('logText');
		var atBottom = pre.parentElement.scrollHeight - pre.parentElement.scrollTop - pre.parentElement.clientHeight < 20;
		pre.textContent = text || '(nothing logged)';
		if (atBottom) pre.parentElement.scrollTop = pre.parentElement.scrollHeight;
		if (!logModalEl.classList.contains('show')) logModal.show();
	}

	function openRun(id) {
		api.get('/api/tasks/runs/' + id).then(function (d) {
			if (!d.success) return toast(d.error || 'Run not found', 'danger');
			var r = d.run, task = findTask(r.task);
			showLog((task ? task.title : r.task) + ' #' + r.id, statusBadge(r.status) + ' ' + esc(fmt.unix(r.started_at)) + ', took ' +
				esc(duration(r.finished_at - r.started_at)) + ', started by ' + startedBy(r.trigger, r.actor), r.log);
		});
	}

	// A running task's log, refreshed until it finishes or the dialog closes
	function openLive(name) {
		clearInterval(livePoll);
		var task = findTask(name);
		function poll() {
			api.get('/api/tasks/' + encodeURIComponent(name) + '/log').then(function (d) {
				if (!d.success) return;
				if (!d.running) {
					clearInterval(livePoll);
					document.getElementById('logMeta').innerHTML += ' ' + fmt.badge('Finished', 'secondary') + ' <span class="small">see the run history for the full log</span>';
					return;
				}
				showLog((task ? task.title : name) + ' (running)', 'Started ' + esc(fmt.unix(d.started_at)) + ' by ' + startedBy(d.trigger, d.actor), d.log);
			});
		}
		poll();
		livePoll = setInterval(poll, 2000);
	}
	logModalEl.addEventListener('hidden.bs.modal', function () { clearInterval(livePoll); });

	document.getElementById('taskRows').addEventListener('click', function (e) {
		var el = e.target.closest('[data-edit],[data-start],[data-live],[data-run]');
		if (!el) return;
		e.preventDefault();
		if (el.dataset.edit) openEdit(el.dataset.edit);
		else if (el.dataset.live) openLive(el.dataset.live);
		else if (el.dataset.run) openRun(el.dataset.run);
		else if (el.dataset.start) {
			el.disabled = true;
			api.action('/api/tasks/' + encodeURIComponent(el.dataset.start) + '/run', {}, 'Started').then(load).catch(function () { el.disabled = false; });
		}
	});

	// ---- History ----
	var runs = serverTable('#runsTable', '/api/tasks/runs', [
		{ data: 'id' },
		{ data: 'task', orderable: false, render: function (d) { var t = findTask(d); return esc(t ? t.title : d); } },
		{ data: 'trigger', orderable: false, render: function (d, type, row) { return startedBy(d, row.actor); } },
		{ data: 'started_at', orderable: false, render: function (d) { return esc(fmt.unix(d)); } },
		{ data: 'finished_at', orderable: false, render: function (d, type, row) { return esc(duration(d - row.started_at)); } },
		{ data: 'status', orderable: false, render: function (d) { return statusBadge(d); } },
		{ data: 'summary', orderable: false }
	], { liveTable: 'scheduled_tasks', extra: function () { return { task: document.getElementById('runTask').value }; }, dataTable: { searching: false, pageLength: 10 } });
	$('#runsTable tbody').on('click', 'tr', function () {
		var row = runs.row(this).data();
		if (row) openRun(row.id);
	});
	document.getElementById('runTask').addEventListener('change', function () { runs.ajax.reload(); });

	if (window.Live) Live.on('scheduled_tasks', Live.throttle(load, 500));
	// Keeps "in 5m" current
	setInterval(render, 30000);
	load();
})();
</script>
{% endblock %}