{% extends "base.jinja2" %}

{% block title %}System Log - DarkflameServer{% endblock %}

{% block content %}
<div class="mb-3">
	<h2 class="mb-1">System Log</h2>
	<p class="text-body-secondary mb-0">The servers' log files. Pick a server and one of its files; the newest is shown first.</p>
</div>

<div class="card mb-3">
	<div class="card-header">
		<form method="get" class="row g-2 align-items-end" id="logPick">
			<div class="col-sm-4">
				<label class="form-label small mb-1" for="logServerPick">Server</label>
				<select name="server" id="logServerPick" class="form-select form-select-sm">
					{% for server in servers %}
					<option value="{{ server.name }}"{% if server.name == selected_server %} selected{% endif %}>{{ server.name }} ({{ server.files }} file{% if server.files != 1 %}s{% endif %})</option>
					{% endfor %}
				</select>
			</div>
			<div class="col-sm-5">
				<label class="form-label small mb-1" for="logFilePick">File</label>
				<select name="file" id="logFilePick" class="form-select form-select-sm">
					{% for file in files %}
					<option value="{{ file.name }}" data-time="{{ file.time }}" data-size="{{ file.size }}"{% if exists("log_file") %}{% if file.name == log_file %} selected{% endif %}{% endif %}>{{ file.name }}</option>
					{% endfor %}
				</select>
			</div>
			<div class="col-sm-3 d-flex gap-2">
				<button type="button" class="btn btn-sm btn-outline-secondary flex-fill" onclick="location.reload()">Refresh</button>
				{% if exists("log_file") %}<a class="btn btn-sm btn-outline-secondary flex-fill" href="/api/logs/file?name={{ log_file }}">Download</a>{% endif %}
			</div>
		</form>
	</div>
	{% if exists("log_file") %}
	<div class="px-3 py-2 border-bottom d-flex flex-wrap align-items-baseline gap-2 bg-body-tertiary">
		<span class="fw-semibold">{{ selected_server }}</span>
		<code class="small">{{ log_file }}</code>
		{% if log_newest %}<span class="badge text-bg-success">newest</span>{% else %}<span class="badge text-bg-secondary">older file</span>{% endif %}
		<span class="small text-body-secondary ms-auto" id="logMeta" data-time="{{ log_time }}" data-size="{{ log_size }}"></span>
	</div>
	{% endif %}
	<div class="card-body p-0">
		<pre id="logContent" class="log-output mb-0 p-3">{% if exists("log_content") %}{{ log_content }}{% else %}No log files found{% endif %}</pre>
	</div>
</div>

<div class="card">
	<div class="card-header"><h5 class="mb-0">Search the logs</h5></div>
	<div class="card-body">
		<form class="row g-2 align-items-end" id="logSearch">
			<div class="col-sm-5"><label class="form-label small" for="logQuery">Text</label><input class="form-control form-control-sm" id="logQuery" minlength="2" maxlength="200" required placeholder="e.g. a player name, an error, a zone ID"></div>
			<div class="col-sm-3"><label class="form-label small" for="logServer">Server</label><select class="form-select form-select-sm" id="logServer"><option value="">All servers</option>
				{% for type in server_types %}<option value="{{ type }}">{{ type }}</option>{% endfor %}</select></div>
			<div class="col-sm-2"><label class="form-label small" for="logFiles">Newest files</label><select class="form-select form-select-sm" id="logFiles"><option>1</option><option selected>3</option><option>10</option><option>20</option></select></div>
			<div class="col-sm-2"><button class="btn btn-sm btn-primary w-100">Search</button></div>
		</form>
		<div id="logResults" class="mt-3"></div>
	</div>
</div>
{% endblock %}

{% block scripts %}
<script>
var log = document.getElementById('logContent');
log.scrollTop = log.scrollHeight;

function fileSize(bytes) {
	bytes = Number(bytes);
	return bytes >= 1048576 ? (bytes / 1048576).toFixed(1) + ' MB' : Math.max(1, Math.round(bytes / 1024)) + ' kB';
}
// What's shown: when the file was last written, how big it is, and that this is its end
var meta = document.getElementById('logMeta');
if (meta) meta.textContent = 'Last written ' + fmt.unix(Number(meta.dataset.time)) + ' \u00b7 ' + fileSize(meta.dataset.size) + ' \u00b7 showing the last 500 lines';
// File names end in the time the server started; show when each was written too
document.querySelectorAll('#logFilePick option').forEach(function (o) {
	var started = Number((o.value.match(/_(\d{9,})\.log$/) || [])[1]);
	o.textContent = (started ? 'Started ' + fmt.unix(started) + ', ' : '') + 'last written ' + fmt.unix(Number(o.dataset.time)) + ' (' + fileSize(o.dataset.size) + ')';
});
document.getElementById('logServerPick').addEventListener('change', function () { location.href = '/system_log?server=' + encodeURIComponent(this.value); });
document.getElementById('logFilePick').addEventListener('change', function () { this.form.submit(); });

document.getElementById('logSearch').addEventListener('submit', function (e) {
	e.preventDefault();
	var out = document.getElementById('logResults');
	var q = document.getElementById('logQuery').value.trim();
	out.innerHTML = '<p class="text-body-secondary mb-0">Searching&hellip;</p>';
	api.job('/api/logs/search?q=' + encodeURIComponent(q) + '&server=' + encodeURIComponent(document.getElementById('logServer').value) +
		'&files=' + document.getElementById('logFiles').value, null, 'GET').then(function (d) {
		if (!d.matches.length) { out.innerHTML = '<p class="text-body-secondary mb-0">Nothing found.</p>'; return; }
		var lower = q.toLowerCase();
		out.innerHTML = (d.truncated ? '<p class="small text-warning">Showing the first 1000 lines.</p>' : '<p class="small text-body-secondary">' + d.matches.length + ' line(s)</p>') +
			'<pre class="log-output mb-0">' + d.matches.map(function (m) {
				var text = esc(m.text), at = m.text.toLowerCase().indexOf(lower);
				if (at >= 0) text = esc(m.text.slice(0, at)) + '<mark>' + esc(m.text.slice(at, at + q.length)) + '</mark>' + esc(m.text.slice(at + q.length));
				return '<span class="text-body-secondary">' + esc(m.file) + ':' + m.line + '</span> ' + text;
			}).join('\n') + '</pre>';
	}).catch(function () { out.innerHTML = ''; });
});
</script>
{% endblock %}