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path: root/src/templates/language.html.tmpl
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{{ define "header" }}
<style>
	.lang-fade-in-out {
		transition: opacity 1s;

		&.hide {
			opacity: 0;
		}
	}
</style>

<script>
	(() => {
		let i = -1;
		let nodes;
		const Δt = 5000; /* Total time a text is shown */
		const Δf = 1000; /* Fade duration */
		const texts = [
			{{ $save := . }}
			{{ $ps := .Printers }}
			{{ range locales }}
				{{ if (and .Enabled (ne .Bcp $save.Printer.Bcp)) }}
					[
						"{{ .Bcp }}",
						{{ $p := (index $ps .Bcp) }}
						"{{ $p.Get `Select Your Language` }}",
						"{{ $p.Get `Eurozone Languages` }}",
						"{{ $p.Get `Other Languages` }}",
					],
				{{ end }}
			{{ end }}
		];

		const change = () => {
			nodes.forEach(n => n.classList.add("hide"));
			setTimeout(() => {
				i = (i + 1) % texts.length;
				nodes.forEach((n, j) => {
					const [lang, ...strs] = texts[i];
					n.lang = lang;
					n.textContent = strs[j];
					n.classList.remove("hide");
				});
			}, Δf);
		};

		document.addEventListener("DOMContentLoaded", _ => {
			nodes = $$('.lang-fade-in-out');
			change();
			setInterval(change, Δt);
		});
	})();
</script>
{{ end }}

{{ define "content" }}
<header>
	{{ template "navbar" . }}
	<h1>
		{{ .Get "Select Your Language" }}
		<br><span class="lang-fade-in-out translation">&nbsp;</span>
	</h1>
</header>
<main>
	<h2>
		{{ .Get "Eurozone Languages" }}
		<br><span class="lang-fade-in-out translation">&nbsp;</span>
	</h2>
	{{ template "langgrid" true }}
	<h2>
		{{ .Get "Other Languages" }}
		<br><span class="lang-fade-in-out translation">&nbsp;</span>
	</h2>
	{{ template "langgrid" false }}
</main>
{{ end }}

{{ define "langgrid" }}
{{ $ez := . }}
<form action="/language" method="POST">
	<div class="lang-grid">
		{{ range locales }}
			{{ if eq $ez .Eurozone }}
				<button
					type="submit"
					name="locale"
					value={{ .Bcp }}
					{{ if not .Enabled }}
						disabled
					{{ end }}
				>
					<span
						lang={{ .Bcp }}
						data-code={{ .Language | toUpper }}
					>
						{{ .Name }}
					</span>
				</button>
			{{ end }}
		{{ end }}
	</div>
</form>
{{ end }}