// Risiko-Exposure in Euro
// Quelle: widget.query("project.risks")
// Erwartungswert je Risiko = Kostenwirkung × Eintrittswahrscheinlichkeit / 100.

const CURRENCY = "EUR"; // an die Mandantenwährung anpassen

const isDark: boolean = widget.data.theme === "dark";
const C = {
  text: isDark ? "#f1f5f9" : "#1e293b",
  sub: "#94a3b8",
  card: isDark ? "#1e293b" : "#f8fafc",
  line: isDark ? "#334155" : "#e2e8f0",
  green: "#22c55e",
  amber: "#f59e0b",
  red: "#ef4444",
};

const CUR: string = new Intl.NumberFormat(navigator.language, {
  style: "currency",
  currency: CURRENCY,
}).formatToParts(0).filter((x) => x.type === "currency").map((x) => x.value)[0] || CURRENCY;

function esc(s: string): string {
  return String(s).replace(/[&<>"]/g, (c: string) =>
    c === "&" ? "&amp;" : c === "<" ? "&lt;" : c === ">" ? "&gt;" : "&quot;");
}

function note(text: string): string {
  return `<div style="display:flex;align-items:center;justify-content:center;height:100%;min-height:60px;padding:12px;font-size:12px;color:${C.sub};text-align:center">${text}</div>`;
}

function queryError(code: string): string {
  return note(
    code === "forbidden" ? "Keine Berechtigung für die Risikodaten."
      : code === "unsupported_in_context" ? "Nur auf Projektebene verfügbar."
      : "Risikodaten konnten nicht geladen werden.",
  );
}

function short(v: number): string {
  const a: number = Math.abs(v);
  if (a >= 1000000) return (v / 1000000).toLocaleString(navigator.language, { maximumFractionDigits: 1 }) + " Mio. " + CUR;
  if (a >= 10000) return Math.round(v / 1000).toLocaleString(navigator.language) + " Tsd. " + CUR;
  return Math.round(v).toLocaleString(navigator.language) + " " + CUR;
}

widget.el.innerHTML = note("Lade Risiken …");

(async () => {
  const res = await widget.query("project.risks", { limit: 200 });
  if (!res.ok) {
    widget.el.innerHTML = queryError(res.error.code);
    widget.done();
    return;
  }

  const all = res.data.items;
  const open = all.filter((r) => r.status !== "closed");
  const occurred = all.filter((r) => r.status === "occurred");

  if (open.length === 0) {
    widget.el.innerHTML = note("Keine offenen Risiken erfasst.");
    widget.done();
    return;
  }

  function expected(r: WidgetRisk): number {
    return r.impact * (r.probability / 100);
  }

  const evTotal: number = open.reduce((s, r) => s + expected(r), 0);
  const worstCase: number = open.reduce(
    (s, r) => s + (r.costImpactMax != null ? r.costImpactMax : r.impact) * (r.probability / 100),
    0,
  );
  const delayDays: number = open.reduce(
    (s, r) => s + (r.scheduleImpactDays != null ? r.scheduleImpactDays : 0) * (r.probability / 100),
    0,
  );

  const budget: number = widget.data.project ? widget.data.project.budget : 0;
  const share: number = budget > 0 ? (evTotal / budget) * 100 : 0;
  const shareColor: string = share >= 20 ? C.red : share >= 10 ? C.amber : C.green;

  const top = open.slice().sort((a, b) => expected(b) - expected(a)).slice(0, 5);
  const max: number = expected(top[0]) || 1;

  const rows: string = top.map((r) => {
    const v: number = expected(r);
    const w: number = Math.max(2, (v / max) * 100);
    return `<div style="margin-bottom:6px">
      <div style="display:flex;justify-content:space-between;gap:8px;font-size:11px;margin-bottom:2px">
        <span style="flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:${C.text}">${esc(r.title)}</span>
        <span style="color:${C.sub};white-space:nowrap">${r.probability} % · ${short(v)}</span>
      </div>
      <div style="height:5px;background:${C.line};border-radius:3px;overflow:hidden">
        <div style="height:100%;width:${w.toFixed(0)}%;background:${C.red};opacity:.8"></div>
      </div>
    </div>`;
  }).join("");

  widget.el.innerHTML = `
    <div style="padding:10px 12px;color:${C.text}">
      <div style="display:flex;align-items:flex-end;gap:12px;margin-bottom:4px">
        <div>
          <div style="font-size:26px;font-weight:700;line-height:1.1;color:${C.red}">${short(evTotal)}</div>
          <div style="font-size:10px;color:${C.sub}">erwarteter Schaden aus ${open.length} offenen Risiken</div>
        </div>
        <div style="margin-left:auto;text-align:right">
          <div style="font-size:16px;font-weight:700;color:${shareColor}">${share.toFixed(1)} %</div>
          <div style="font-size:10px;color:${C.sub}">vom Budget</div>
        </div>
      </div>
      <div style="display:flex;gap:10px;padding:8px 0;margin-bottom:6px;border-top:1px solid ${C.line};border-bottom:1px solid ${C.line}">
        <div style="flex:1"><div style="font-size:12px;font-weight:600">${short(worstCase)}</div><div style="font-size:10px;color:${C.sub}">obere Bandbreite</div></div>
        <div style="flex:1"><div style="font-size:12px;font-weight:600">${Math.round(delayDays)} Tage</div><div style="font-size:10px;color:${C.sub}">erwarteter Verzug</div></div>
        <div style="flex:1"><div style="font-size:12px;font-weight:600;color:${occurred.length > 0 ? C.amber : C.text}">${occurred.length}</div><div style="font-size:10px;color:${C.sub}">bereits eingetreten</div></div>
      </div>
      <div style="font-size:10px;color:${C.sub};text-transform:uppercase;letter-spacing:.04em;margin-bottom:5px">Größte Einzelrisiken</div>
      ${rows}
      ${res.data.truncated ? `<div style="font-size:10px;color:${C.sub};margin-top:4px">Auszug — es existieren weitere Risiken.</div>` : ""}
    </div>`;
  widget.done();
})();