feat: Seiten für Übersicht, Kalender und Statistik

Der Kalender ist als Tabelle ausgezeichnet — ein Kalender ist eine Tabelle,
und mit Screenreader wird daraus dann „Woche 3, Donnerstag, 24." statt einer
ununterscheidbaren Kachelwüste.

src/app/statistik/page.tsx

@@ -0,0 +1,267 @@
+import Link from "next/link";
+import type { Metadata } from "next";
+import { requireUser } from "@/lib/auth";
+import { getSettings } from "@/lib/settings";
+import {
+  getActiveYears,
+  getGenreDistribution,
+  getMonthlyActivity,
+  getMostWatched,
+  getProviderDistribution,
+  getTopRated,
+  getTotals,
+  getYearReview,
+} from "@/lib/stats";
+import { formatMinutes } from "@/lib/labels";
+import { AppShell } from "@/components/AppShell";
+import { Poster } from "@/components/Poster";
+import { DistributionBars, MonthlyChart } from "@/components/stats/Charts";
+
+export const metadata: Metadata = { title: "Statistik" };
+
+export default async function StatsPage({
+  searchParams,
+}: {
+  searchParams: Promise<{ jahr?: string }>;
+}) {
+  const user = await requireUser("/statistik");
+  const settings = await getSettings();
+  const params = await searchParams;
+
+  const years = await getActiveYears(user.id);
+  const requested = Number.parseInt(params.jahr ?? "", 10);
+  const year = years.includes(requested) ? requested : (years[0] ?? new Date().getFullYear());
+
+  const [totals, monthly, providers, genres, topRated, mostWatched, review] = await Promise.all([
+    getTotals(user.id),
+    getMonthlyActivity(user.id, 12),
+    getProviderDistribution(user.id),
+    getGenreDistribution(user.id),
+    getTopRated(user.id, 5),
+    getMostWatched(user.id, 5),
+    getYearReview(user.id, year),
+  ]);
+
+  if (totals.minutes === 0 && totals.episodes === 0 && totals.movies === 0) {
+    return (
+      <AppShell user={user} instanceName={settings.instanceName}>
+        <header className="mb-5">
+          <h1 className="text-2xl font-semibold tracking-tight sm:text-3xl">Statistik</h1>
+        </header>
+        <div className="fl-card p-8 text-center">
+          <p className="mx-auto max-w-md text-[var(--fl-muted)]">
+            Noch keine Sichtungen. Sobald du die erste Episode abhakst, entstehen hier
+            Schauzeit, Verteilungen und der Jahresrückblick.
+          </p>
+          <Link href="/bibliothek" className="fl-btn fl-btn-primary mt-4">
+            Zur Bibliothek
+          </Link>
+        </div>
+      </AppShell>
+    );
+  }
+
+  const days = totals.minutes / (60 * 24);
+
+  return (
+    <AppShell user={user} instanceName={settings.instanceName}>
+      <header className="mb-6">
+        <h1 className="text-2xl font-semibold tracking-tight sm:text-3xl">Statistik</h1>
+        <p className="mt-1 text-sm text-[var(--fl-muted)]">
+          Alles gerechnet aus deinen Sichtungen — Rewatches zählen mit.
+        </p>
+      </header>
+
+      <section className="fl-card mb-6 p-5 sm:p-7" aria-label="Gesamtschauzeit">
+        <p className="text-sm font-medium text-[var(--fl-muted)]">Gesamte Schauzeit</p>
+        <p className="fl-gradient-text mt-1 text-5xl font-semibold tabular-nums sm:text-6xl">
+          {Math.round(totals.minutes / 60).toLocaleString("de-DE")} h
+        </p>
+        <p className="mt-1 text-sm text-[var(--fl-muted)]">
+          {formatMinutes(totals.minutes)} · das sind {days.toFixed(1).replace(".", ",")} Tage am Stück
+        </p>
+
+        <dl className="mt-5 grid grid-cols-2 gap-4 sm:grid-cols-4">
+          <Stat label="Episoden" value={totals.episodes.toLocaleString("de-DE")} />
+          <Stat label="Filme" value={totals.movies.toLocaleString("de-DE")} />
+          <Stat label="Abgeschlossen" value={totals.titlesCompleted.toLocaleString("de-DE")} />
+          <Stat
+            label="In der Bibliothek"
+            value={`${totals.seriesCount} Serien · ${totals.movieCount} Filme`}
+          />
+        </dl>
+      </section>
+
+      <section className="fl-card mb-6 p-5" aria-labelledby="verlauf">
+        <h2 id="verlauf" className="mb-1 text-lg font-semibold">
+          Die letzten zwölf Monate
+        </h2>
+        <p className="mb-4 text-sm text-[var(--fl-muted)]">
+          Abgehakte Episoden und Filme je Monat.
+        </p>
+        <MonthlyChart points={monthly.map(({ label, episodes, movies, minutes }) => ({ label, episodes, movies, minutes }))} />
+      </section>
+
+      <div className="mb-6 grid gap-6 lg:grid-cols-2">
+        <section className="fl-card p-5" aria-labelledby="dienste">
+          <h2 id="dienste" className="mb-1 text-lg font-semibold">
+            Nach Streamingdienst
+          </h2>
+          <p className="mb-4 text-sm text-[var(--fl-muted)]">
+            Wo du tatsächlich geschaut hast — aus dem Feld „wo schaue ich das".
+          </p>
+          <DistributionBars
+            rows={providers.slice(0, 8)}
+            emptyText="Noch keine Sichtung einem Dienst zugeordnet."
+            useBrandColors
+          />
+        </section>
+
+        <section className="fl-card p-5" aria-labelledby="genres">
+          <h2 id="genres" className="mb-1 text-lg font-semibold">
+            Nach Genre
+          </h2>
+          <p className="mb-4 text-sm text-[var(--fl-muted)]">
+            Titel mit mehreren Genres zählen in jedem mit.
+          </p>
+          <DistributionBars rows={genres.slice(0, 8)} emptyText="Noch keine Genres erfasst." />
+        </section>
+      </div>
+
+      <section className="fl-card mb-6 p-5" aria-labelledby="rueckblick">
+        <div className="mb-4 flex flex-wrap items-center justify-between gap-3">
+          <h2 id="rueckblick" className="text-lg font-semibold">
+            {review.year} in Zahlen
+          </h2>
+          {years.length > 1 && (
+            <div className="flex flex-wrap gap-1.5" role="group" aria-label="Jahr wählen">
+              {years.slice(0, 6).map((entry) => (
+                <Link
+                  key={entry}
+                  href={`/statistik?jahr=${entry}`}
+                  aria-current={entry === review.year ? "true" : undefined}
+                  className="rounded-full border px-3 py-1 text-sm font-medium transition-colors"
+                  style={
+                    entry === review.year
+                      ? {
+                          backgroundImage: "var(--fl-gradient)",
+                          color: "var(--fl-on-accent)",
+                          borderColor: "transparent",
+                        }
+                      : { borderColor: "var(--fl-border)", color: "var(--fl-muted)" }
+                  }
+                >
+                  {entry}
+                </Link>
+              ))}
+            </div>
+          )}
+        </div>
+
+        <dl className="grid grid-cols-2 gap-4 sm:grid-cols-3 lg:grid-cols-5">
+          <Stat label="Schauzeit" value={formatMinutes(review.minutes)} />
+          <Stat label="Episoden" value={review.episodes.toLocaleString("de-DE")} />
+          <Stat label="Filme" value={review.movies.toLocaleString("de-DE")} />
+          <Stat label="Neu angefangen" value={review.titlesStarted.toLocaleString("de-DE")} />
+          <Stat label="Abgeschlossen" value={review.titlesCompleted.toLocaleString("de-DE")} />
+        </dl>
+
+        <div className="mt-5 grid gap-4 sm:grid-cols-2">
+          {review.busiestMonth && (
+            <p className="rounded-xl border border-[var(--fl-border)] p-3 text-sm">
+              <span className="text-[var(--fl-faint)]">Stärkster Monat: </span>
+              <span className="font-medium">{review.busiestMonth.label}</span>
+              <span className="text-[var(--fl-muted)]">
+                {" "}
+                mit {formatMinutes(review.busiestMonth.minutes)}
+              </span>
+            </p>
+          )}
+          {review.topTitle && (
+            <p className="rounded-xl border border-[var(--fl-border)] p-3 text-sm">
+              <span className="text-[var(--fl-faint)]">Die meiste Zeit ging an: </span>
+              <Link href={`/titel/${review.topTitle.titleId}`} className="font-medium hover:text-[var(--fl-accent)]">
+                {review.topTitle.title}
+              </Link>
+              <span className="text-[var(--fl-muted)]"> ({formatMinutes(review.topTitle.minutes)})</span>
+            </p>
+          )}
+        </div>
+      </section>
+
+      <div className="grid gap-6 lg:grid-cols-2">
+        <TitleList
+          id="meistzeit"
+          heading="Wo die meiste Zeit hinging"
+          items={mostWatched}
+          renderMeta={(item) => formatMinutes(item.minutes)}
+          emptyText="Noch nichts gesehen."
+        />
+        <TitleList
+          id="bestbewertet"
+          heading="Deine besten Bewertungen"
+          items={topRated}
+          renderMeta={(item) => (item.rating ? `${item.rating}/10` : "—")}
+          emptyText="Noch nichts bewertet."
+        />
+      </div>
+    </AppShell>
+  );
+}
+
+function Stat({ label, value }: { label: string; value: string }) {
+  return (
+    <div>
+      <dt className="text-xs uppercase tracking-wide text-[var(--fl-faint)]">{label}</dt>
+      <dd className="mt-0.5 text-lg font-semibold tabular-nums">{value}</dd>
+    </div>
+  );
+}
+
+function TitleList({
+  id,
+  heading,
+  items,
+  renderMeta,
+  emptyText,
+}: {
+  id: string;
+  heading: string;
+  items: { titleId: string; title: string; posterPath: string | null; rating: number | null; minutes: number; type: string }[];
+  renderMeta: (item: { rating: number | null; minutes: number }) => string;
+  emptyText: string;
+}) {
+  return (
+    <section className="fl-card p-5" aria-labelledby={id}>
+      <h2 id={id} className="mb-4 text-lg font-semibold">
+        {heading}
+      </h2>
+
+      {items.length === 0 ? (
+        <p className="text-sm text-[var(--fl-faint)]">{emptyText}</p>
+      ) : (
+        <ol className="space-y-3">
+          {items.map((item, index) => (
+            <li key={item.titleId} className="flex items-center gap-3">
+              <span className="w-4 shrink-0 text-right font-mono text-sm text-[var(--fl-faint)]">
+                {index + 1}
+              </span>
+              <Link href={`/titel/${item.titleId}`} className="w-10 shrink-0">
+                <Poster path={item.posterPath} alt={item.title} size="w154" />
+              </Link>
+              <Link
+                href={`/titel/${item.titleId}`}
+                className="min-w-0 flex-1 truncate text-sm font-medium hover:text-[var(--fl-accent)]"
+              >
+                {item.title}
+              </Link>
+              <span className="shrink-0 text-sm tabular-nums text-[var(--fl-muted)]">
+                {renderMeta(item)}
+              </span>
+            </li>
+          ))}
+        </ol>
+      )}
+    </section>
+  );
+}