import React from 'react';

function Badge({ children, tone = 'gray' }) {
  const tones = {
    green: 'bg-green-100 text-green-800 border-green-200',
    blue: 'bg-blue-100 text-blue-800 border-blue-200',
    yellow: 'bg-yellow-100 text-yellow-800 border-yellow-200',
    red: 'bg-red-100 text-red-800 border-red-200',
    gray: 'bg-slate-100 text-slate-700 border-slate-200',
  };
  return <span className={`inline-flex rounded-full border px-3 py-1 text-xs font-semibold ${tones[tone]}`}>{children}</span>;
}

function Card({ title, children }) {
  return (
    <section className="rounded-2xl border border-slate-200 bg-white p-5 shadow-sm">
      <h2 className="text-lg font-bold">{title}</h2>
      <div className="mt-4">{children}</div>
    </section>
  );
}

function Detail({ label, value, hint }) {
  return (
    <div>
      <p className="text-xs font-semibold uppercase tracking-wide text-slate-500">{label}</p>
      <p className="mt-1 text-sm font-semibold text-slate-900">{value}</p>
      {hint ? <p className="mt-1 text-xs text-slate-500">{hint}</p> : null}
    </div>
  );
}

const auditEntries = [
  '2026-05-05 · role_changed · mitarbeiter → tenant_admin · durch Markus',
  '2026-05-01 · user_invited · Einladung angenommen · durch System',
  '2026-05-01 · user_activated · Status active · durch System',
];

export default function BU03BenutzerprofilVerwalten() {
  return (
    <div className="min-h-screen bg-slate-50 p-6 text-slate-900">
      <div className="mx-auto max-w-7xl space-y-5">
        <header className="rounded-2xl border border-sky-200 bg-sky-50 p-6 shadow-sm">
          <div className="flex flex-col gap-4 lg:flex-row lg:items-center lg:justify-between">
            <div>
              <p className="text-sm font-semibold uppercase tracking-wide text-sky-700">UC08 · BU-03</p>
              <h1 className="mt-1 text-3xl font-bold">Benutzerprofil verwalten</h1>
              <p className="mt-2 max-w-3xl text-sm text-slate-600">
                Detailansicht für Stammdaten, Rolle, Status, Sicherheit und Audit.
              </p>
            </div>
            <div className="flex flex-wrap gap-2">
              <button className="rounded-xl border border-slate-300 bg-white px-4 py-2 text-sm font-semibold text-slate-800">Zurück</button>
              <button className="rounded-xl border border-slate-300 bg-white px-4 py-2 text-sm font-semibold text-slate-800">Audit</button>
              <button className="rounded-xl bg-sky-700 px-4 py-2 text-sm font-semibold text-white">Rolle ändern</button>
            </div>
          </div>
        </header>

        <div className="grid gap-5 lg:grid-cols-3">
          <Card title="Stammdaten">
            <div className="space-y-4">
              <Detail label="Name" value="David Admin" />
              <Detail label="E-Mail" value="david@example.test" />
              <Detail label="Tenant" value="Tauchschule Hochrhein" />
              <Detail label="erstellt am" value="2026-05-01" hint="erstellt durch System / Einladung" />
            </div>
          </Card>

          <Card title="Rolle & Status">
            <div className="space-y-4">
              <div className="flex flex-wrap gap-2">
                <Badge tone="blue">tenant_admin</Badge>
                <Badge tone="green">aktiv</Badge>
                <Badge tone="yellow">letzter Admin-Schutz</Badge>
              </div>
              <Detail label="letzter Login" value="2026-05-07 08:30" />
              <p className="rounded-xl border border-yellow-200 bg-yellow-50 p-3 text-sm text-yellow-900">
                Deaktivierung ist gesperrt, falls dies der letzte aktive Tenant-Admin wäre.
              </p>
            </div>
          </Card>

          <Card title="Sicherheit">
            <div className="space-y-4">
              <div className="flex flex-wrap gap-2">
                <Badge tone="yellow">2FA offen</Badge>
                <Badge tone="green">kein Lock</Badge>
              </div>
              <Detail label="letztes Ereignis" value="Login erfolgreich" />
              <Detail label="IP / Gerät" value="später aus Security-Log" />
              <button className="rounded-xl border border-slate-300 px-4 py-2 text-sm font-semibold text-slate-700">BU-07 öffnen</button>
            </div>
          </Card>
        </div>

        <div className="grid gap-5 lg:grid-cols-[1fr_390px]">
          <Card title="Audit-Kurzansicht">
            <div className="divide-y divide-slate-100">
              {auditEntries.map((entry) => (
                <p key={entry} className="py-3 text-sm text-slate-700">{entry}</p>
              ))}
            </div>
            <div className="mt-4 flex justify-end">
              <button className="rounded-xl border border-slate-300 px-4 py-2 text-sm font-semibold text-slate-700">BU-08 öffnen</button>
            </div>
          </Card>

          <Card title="Aktionen">
            <div className="space-y-3">
              <button className="w-full rounded-xl bg-sky-700 px-4 py-2 text-sm font-semibold text-white">Rolle ändern</button>
              <button className="w-full rounded-xl border border-slate-300 px-4 py-2 text-sm font-semibold text-slate-700">Login-Historie</button>
              <button className="w-full rounded-xl border border-slate-300 px-4 py-2 text-sm font-semibold text-slate-700">Audit</button>
              <button className="w-full rounded-xl border border-red-200 bg-red-50 px-4 py-2 text-sm font-semibold text-red-800">Deaktivieren</button>
            </div>
          </Card>
        </div>

        <section className="rounded-2xl border border-slate-200 bg-white p-5 shadow-sm">
          <p className="text-sm text-slate-600">
            Hinweis: BU-03 ist eine Profil- und Prüfansicht. Kritische Änderungen erfolgen über BU-04 oder BU-06 mit Audit.
          </p>
        </section>
      </div>
    </div>
  );
}