{% extends "base.jinja2" %}

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

{% block content %}
<div class="d-flex flex-wrap justify-content-between align-items-end gap-3 mb-3">
	<div>
		<h2 class="mb-1">Scheduled Announcements</h2>
		<p class="text-body-secondary mb-0">Messages shown in game on a schedule, like the home page's announcement: a popup and a chat line for everyone
			online, or only for players in the zones you pick. Schedules are in UTC; times below are in your time zone. For one said when something starts
			or ends (or repeated while it is on), add it to a <a href="/events">scheduled event</a>; both show on its calendar.</p>
	</div>
	<button type="button" class="btn btn-primary btn-sm" id="addAnnouncement">Schedule an announcement</button>
</div>

<div class="card">
	<div class="card-body table-responsive">
		<table class="table table-hover align-middle mb-0 table-stack">
			<thead><tr><th>Message</th><th>Where</th><th>Schedule</th><th>Next</th><th>Sent</th><th class="text-end">Actions</th></tr></thead>
			<tbody id="announcementRows"><tr><td colspan="6" class="text-body-secondary">Loading&hellip;</td></tr></tbody>
		</table>
		<p class="small text-body-secondary mt-2 mb-0">A send that falls while the dashboard or the master server is down is skipped, not sent late.</p>
	</div>
</div>

<div class="modal fade" id="announcementModal" tabindex="-1" aria-labelledby="announcementModalTitle" aria-hidden="true">
	<div class="modal-dialog modal-lg">
		<form class="modal-content" id="announcementForm">
			<div class="modal-header"><h5 class="modal-title" id="announcementModalTitle">Announcement</h5><button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button></div>
			<div class="modal-body">
				<div class="mb-3">
					<label class="form-label" for="annTitle">Title <span class="text-body-secondary small">(optional)</span></label>
					<input class="form-control" id="annTitle" autocomplete="off">
				</div>
				<div class="mb-3">
					<label class="form-label" for="annMessage">Message</label>
					<textarea class="form-control" id="annMessage" rows="3" required></textarea>
				</div>
				<div class="mb-3">
					<label class="form-label" for="annZoneSearch">Where</label>
					<div class="form-check"><input class="form-check-input" type="radio" name="annWhere" id="annEverywhere" value="all" checked><label class="form-check-label" for="annEverywhere">Every world</label></div>
					<div class="form-check"><input class="form-check-input" type="radio" name="annWhere" id="annSomeZones" value="zones"><label class="form-check-label" for="annSomeZones">Only these zones</label></div>
					<div class="mt-2 d-none" id="annZonePicker">
						<div class="d-flex flex-wrap gap-1 mb-2" id="annZoneChips"></div>
						<input class="form-control form-control-sm" id="annZoneSearch" list="annZoneList" placeholder="Type a zone name or ID and press Enter" autocomplete="off">
						<datalist id="annZoneList"></datalist>
					</div>
				</div>
				<div class="mb-3">
					<label class="form-label" for="annSchedule">Schedule (UTC)</label>
					<input class="form-control font-monospace" id="annSchedule" maxlength="128" autocomplete="off" spellcheck="false" placeholder="@every 2h" required>
					<div class="small mt-2" id="annPreview" aria-live="polite"></div>
					<details class="small mt-1">
						<summary>Schedule syntax</summary>
						<p class="mt-2 mb-1">As for scheduled tasks. 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>.</p>
						<ul class="mb-0">
							<li><code>0 */2 * * *</code>: every 2 hours, on the hour</li>
							<li><code>0 18 * * fri</code>: Fridays at 18:00</li>
							<li><code>@every 45m</code>: every 45 minutes from the start</li>
						</ul>
					</details>
				</div>
				<div class="row g-2 mb-3">
					<div class="col-sm-6"><label class="form-label" for="annStarts">From <span class="text-body-secondary small">(optional)</span></label><input type="datetime-local" class="form-control" id="annStarts"></div>
					<div class="col-sm-6"><label class="form-label" for="annEnds">Until <span class="text-body-secondary small">(optional)</span></label><input type="datetime-local" class="form-control" id="annEnds"></div>
				</div>
				<div class="form-check form-switch"><input class="form-check-input" type="checkbox" role="switch" id="annEnabled" checked><label class="form-check-label" for="annEnabled">On</label></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>
{% endblock %}

{% block scripts %}
<script>
(function () {
	var rows = [], zones = [], limits = {}, editing = null, picked = [];
	var modal = new bootstrap.Modal(document.getElementById('announcementModal'));
	var zoneName = {};

	// datetime-local <-> unix seconds, in the viewer's time zone
	function toInput(ts) {
		if (!ts) return '';
		var d = new Date(ts * 1000);
		d.setMinutes(d.getMinutes() - d.getTimezoneOffset());
		return d.toISOString().slice(0, 16);
	}
	function fromInput(value) { return value ? Math.floor(new Date(value).getTime() / 1000) : 0; }

	function render() {
		document.getElementById('announcementRows').innerHTML = rows.map(function (a) {
			var span = (a.startsAt ? 'from ' + fmt.unix(a.startsAt) : '') + (a.endsAt ? (a.startsAt ? ' ' : '') + 'until ' + fmt.unix(a.endsAt) : '');
			var next = !a.enabled ? fmt.badge('Off', 'secondary') : a.nextAt ? esc(fmt.unix(a.nextAt)) : fmt.badge('Finished', 'secondary');
			return '<tr><td data-label="Message">' + (a.title ? '<strong>' + esc(a.title) + '</strong><br>' : '') + '<span class="small">' + esc(a.message) + '</span></td>' +
				'<td data-label="Where">' + esc(a.zoneNames) + '</td>' +
				'<td data-label="Schedule"><code>' + esc(a.schedule) + '</code>' + (span ? '<div class="small text-body-secondary">' + esc(span) + '</div>' : '') + '</td>' +
				'<td data-label="Next" class="text-nowrap">' + next + '</td>' +
				'<td data-label="Sent">' + esc(a.sentCount) + (a.lastSentAt ? '<div class="small text-body-secondary">last ' + esc(fmt.unix(a.lastSentAt)) + '</div>' : '') + '</td>' +
				'<td class="text-end text-nowrap">' +
				'<button type="button" class="btn btn-sm btn-outline-secondary me-1" data-send="' + a.id + '">Send now</button>' +
				'<button type="button" class="btn btn-sm btn-outline-primary me-1" data-edit="' + a.id + '">Edit</button>' +
				'<button type="button" class="btn btn-sm btn-outline-danger" data-delete="' + a.id + '">Delete</button></td></tr>';
		}).join('') || '<tr><td colspan="6" class="text-body-secondary">Nothing scheduled.</td></tr>';
	}

	function load() {
		return api.get('/api/announcements').then(function (d) {
			if (!d.success) return;
			rows = d.announcements;
			limits = d.limits;
			if (!zones.length) {
				zones = d.zones;
				zones.forEach(function (z) { zoneName[z.id] = z.name; });
				document.getElementById('annZoneList').innerHTML = zones.map(function (z) { return '<option value="' + esc(z.name + ' (' + z.id + ')') + '">'; }).join('');
				document.getElementById('annTitle').maxLength = limits.title;
				document.getElementById('annMessage').maxLength = limits.message;
			}
			render();
		});
	}

	function renderChips() {
		document.getElementById('annZoneChips').innerHTML = picked.map(function (id) {
			return '<span class="badge text-bg-secondary d-inline-flex align-items-center gap-1">' + esc(zoneName[id] || ('Zone ' + id)) +
				' <button type="button" class="btn-close btn-close-white" style="font-size: .5rem" aria-label="Remove" data-unpick="' + id + '"></button></span>';
		}).join('') || '<span class="small text-body-secondary">No zones yet</span>';
	}

	function whereChanged() {
		document.getElementById('annZonePicker').classList.toggle('d-none', !document.getElementById('annSomeZones').checked);
	}

	function body() {
		return {
			title: document.getElementById('annTitle').value.trim(),
			message: document.getElementById('annMessage').value.trim(),
			zones: document.getElementById('annSomeZones').checked ? picked : [],
			schedule: document.getElementById('annSchedule').value.trim(),
			startsAt: fromInput(document.getElementById('annStarts').value),
			endsAt: fromInput(document.getElementById('annEnds').value),
			enabled: document.getElementById('annEnabled').checked
		};
	}

	var previewTimer = null;
	function preview() {
		clearTimeout(previewTimer);
		var out = document.getElementById('annPreview');
		var b = body();
		if (!b.schedule) { out.innerHTML = ''; return; }
		previewTimer = setTimeout(function () {
			api.post('/api/announcements/preview', { schedule: b.schedule, startsAt: b.startsAt, endsAt: b.endsAt }).then(function (d) {
				if (!d.valid) { out.innerHTML = '<span class="text-danger">' + esc(d.error || 'Invalid schedule') + '</span>'; return; }
				out.innerHTML = 'Next sends: ' + d.next.map(function (t) { return esc(fmt.unix(t)); }).join(', ');
			});
		}, 250);
	}

	function open(a) {
		editing = a;
		document.getElementById('announcementModalTitle').textContent = a ? 'Change announcement' : 'Schedule an announcement';
		document.getElementById('annTitle').value = a ? a.title : '';
		document.getElementById('annMessage').value = a ? a.message : '';
		document.getElementById('annSchedule').value = a ? a.schedule : '';
		document.getElementById('annStarts').value = a ? toInput(a.startsAt) : '';
		document.getElementById('annEnds').value = a ? toInput(a.endsAt) : '';
		document.getElementById('annEnabled').checked = a ? a.enabled : true;
		picked = a ? a.zones.slice() : [];
		document.getElementById(picked.length ? 'annSomeZones' : 'annEverywhere').checked = true;
		whereChanged();
		renderChips();
		preview();
		modal.show();
	}

	document.getElementById('addAnnouncement').addEventListener('click', function () { open(null); });
	['annSchedule', 'annStarts', 'annEnds'].forEach(function (id) { document.getElementById(id).addEventListener('input', preview); });
	document.querySelectorAll('input[name="annWhere"]').forEach(function (r) { r.addEventListener('change', whereChanged); });
	document.getElementById('annZoneSearch').addEventListener('keydown', function (e) {
		if (e.key !== 'Enter') return;
		e.preventDefault();
		var text = this.value.trim().toLowerCase();
		var match = zones.filter(function (z) { return (z.name + ' (' + z.id + ')').toLowerCase() === text || String(z.id) === text; })[0] ||
			zones.filter(function (z) { return z.name.toLowerCase().indexOf(text) !== -1; })[0];
		if (!match) return toast('No zone matches', 'warning');
		if (picked.indexOf(match.id) === -1) picked.push(match.id);
		this.value = '';
		renderChips();
	});
	document.getElementById('annZoneChips').addEventListener('click', function (e) {
		var el = e.target.closest('[data-unpick]');
		if (!el) return;
		picked = picked.filter(function (id) { return String(id) !== el.dataset.unpick; });
		renderChips();
	});

	document.getElementById('announcementForm').addEventListener('submit', function (e) {
		e.preventDefault();
		var b = body();
		if (document.getElementById('annSomeZones').checked && !b.zones.length) return toast('Pick at least one zone, or choose every world', 'warning');
		api.action(editing ? '/api/announcements/' + editing.id : '/api/announcements', b, editing ? 'Saved' : 'Scheduled').then(function () { modal.hide(); load(); });
	});

	document.getElementById('announcementRows').addEventListener('click', function (e) {
		var el = e.target.closest('[data-edit],[data-send],[data-delete]');
		if (!el) return;
		if (el.dataset.edit) return open(rows.filter(function (a) { return String(a.id) === el.dataset.edit; })[0]);
		if (el.dataset.send) return api.action('/api/announcements/' + el.dataset.send + '/send', {}, 'Sent').then(load);
		if (el.dataset.delete && confirm('Delete this scheduled announcement?')) api.action('/api/announcements/' + el.dataset.delete + '/delete', {}, 'Deleted').then(load);
	});

	if (window.Live) Live.on('scheduled_announcements', Live.throttle(load, 500));
	setInterval(render, 30000);
	load();
})();
</script>
{% endblock %}