// The navbar when signed in: "admin" and "log out" in place of "log in". Loaded right after the
// nav, before the rest of the page, so the signed-out links never show first. Pages are the same
// for everyone; the readable kepr_editor cookie, set beside the session, carries the form token
// that log out posts back, so this needs no request.
{
	const token = /(?:^|;\s*)kepr_editor=([0-9a-f]{64})(?:;|$)/.exec(document.cookie)?.[1];
	const link = document.querySelector('.nav-links a[href^="/sign-in"]');
	if (token && link) {
		const admin = document.createElement("a");
		admin.href = "/admin";
		admin.textContent = "admin";
		const form = document.createElement("form");
		form.className = "nav-logout";
		form.method = "post";
		form.action = "/admin/sign-out";
		const field = document.createElement("input");
		field.type = "hidden";
		field.name = "form";
		field.value = token;
		const button = document.createElement("button");
		button.type = "submit";
		button.textContent = "log out";
		form.append(field, button);
		link.replaceWith(admin, form);
	}
}