feat: add frontend case list, detail, and creation pages (Phase 1F)
- Case list page (/cases) with search, status/type filters, status badges - Case creation page (/cases/new) with reusable CaseForm component - Case detail page (/cases/[id]) with tabs: Timeline, Deadlines, Documents, Parties - CaseTimeline component for chronological case_events display - PartyList component with inline party CRUD (add/delete) - Updated sidebar navigation to route to /cases
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267
frontend/src/app/(app)/cases/[id]/page.tsx
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267
frontend/src/app/(app)/cases/[id]/page.tsx
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"use client";
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import { useQuery } from "@tanstack/react-query";
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import { useParams } from "next/navigation";
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import { api } from "@/lib/api";
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import type { Case, CaseEvent, Party, Deadline, Document } from "@/lib/types";
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import { CaseTimeline } from "@/components/cases/CaseTimeline";
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import { PartyList } from "@/components/cases/PartyList";
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import { ArrowLeft, Clock, FileText, Users, Activity } from "lucide-react";
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import { format } from "date-fns";
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import { de } from "date-fns/locale";
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import Link from "next/link";
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import { useState } from "react";
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interface CaseDetail extends Case {
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parties: Party[];
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recent_events: CaseEvent[];
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deadlines_count: number;
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}
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const STATUS_BADGE: Record<string, string> = {
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active: "bg-emerald-50 text-emerald-700",
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pending: "bg-amber-50 text-amber-700",
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closed: "bg-neutral-100 text-neutral-600",
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archived: "bg-neutral-100 text-neutral-400",
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};
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const TABS = [
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{ key: "timeline", label: "Verlauf", icon: Activity },
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{ key: "deadlines", label: "Fristen", icon: Clock },
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{ key: "documents", label: "Dokumente", icon: FileText },
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{ key: "parties", label: "Parteien", icon: Users },
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] as const;
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type TabKey = (typeof TABS)[number]["key"];
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export default function CaseDetailPage() {
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const { id } = useParams<{ id: string }>();
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const [activeTab, setActiveTab] = useState<TabKey>("timeline");
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const { data: caseDetail, isLoading } = useQuery({
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queryKey: ["case", id],
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queryFn: () => api.get<CaseDetail>(`/cases/${id}`),
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});
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const { data: deadlinesData } = useQuery({
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queryKey: ["case-deadlines", id],
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queryFn: () =>
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api.get<{ deadlines: Deadline[]; total: number }>(
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`/deadlines?case_id=${id}`,
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),
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enabled: activeTab === "deadlines",
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});
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const { data: documentsData } = useQuery({
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queryKey: ["case-documents", id],
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queryFn: () => api.get<Document[]>(`/cases/${id}/documents`),
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enabled: activeTab === "documents",
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});
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if (isLoading) {
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return (
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<div className="py-12 text-center text-sm text-neutral-400">
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Laden...
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</div>
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);
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}
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if (!caseDetail) {
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return (
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<div className="py-12 text-center text-sm text-neutral-400">
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Akte nicht gefunden.
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</div>
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);
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}
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const deadlines = deadlinesData?.deadlines ?? [];
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const documents = documentsData ?? [];
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return (
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<div>
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<Link
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href="/cases"
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className="mb-4 inline-flex items-center gap-1 text-sm text-neutral-500 hover:text-neutral-700"
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>
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<ArrowLeft className="h-3.5 w-3.5" />
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Zuruck zu Akten
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</Link>
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<div className="flex items-start justify-between">
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<div>
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<div className="flex items-center gap-3">
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<h1 className="text-lg font-semibold text-neutral-900">
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{caseDetail.title}
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</h1>
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<span
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className={`inline-block rounded-full px-2 py-0.5 text-xs font-medium ${STATUS_BADGE[caseDetail.status] ?? "bg-neutral-100 text-neutral-500"}`}
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>
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{caseDetail.status}
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</span>
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</div>
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<div className="mt-1 flex gap-4 text-sm text-neutral-500">
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<span>Az. {caseDetail.case_number}</span>
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{caseDetail.case_type && <span>{caseDetail.case_type}</span>}
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{caseDetail.court && <span>{caseDetail.court}</span>}
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{caseDetail.court_ref && <span>({caseDetail.court_ref})</span>}
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</div>
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</div>
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<div className="text-right text-xs text-neutral-400">
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<p>
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Erstellt:{" "}
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{format(new Date(caseDetail.created_at), "d. MMM yyyy", {
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locale: de,
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})}
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</p>
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<p>
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Aktualisiert:{" "}
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{format(new Date(caseDetail.updated_at), "d. MMM yyyy", {
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locale: de,
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})}
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</p>
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</div>
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</div>
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{caseDetail.ai_summary && (
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<div className="mt-4 rounded-md border border-blue-100 bg-blue-50 px-4 py-3 text-sm text-blue-800">
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{caseDetail.ai_summary}
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</div>
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)}
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<div className="mt-6 border-b border-neutral-200">
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<nav className="-mb-px flex gap-4">
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{TABS.map((tab) => (
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<button
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key={tab.key}
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onClick={() => setActiveTab(tab.key)}
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className={`inline-flex items-center gap-1.5 border-b-2 px-1 pb-2.5 text-sm font-medium transition-colors ${
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activeTab === tab.key
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? "border-neutral-900 text-neutral-900"
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: "border-transparent text-neutral-400 hover:text-neutral-600"
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}`}
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>
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<tab.icon className="h-4 w-4" />
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{tab.label}
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{tab.key === "deadlines" && caseDetail.deadlines_count > 0 && (
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<span className="ml-1 rounded-full bg-neutral-100 px-1.5 py-0.5 text-xs text-neutral-500">
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{caseDetail.deadlines_count}
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</span>
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)}
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{tab.key === "parties" && caseDetail.parties.length > 0 && (
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<span className="ml-1 rounded-full bg-neutral-100 px-1.5 py-0.5 text-xs text-neutral-500">
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{caseDetail.parties.length}
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</span>
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)}
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</button>
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))}
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</nav>
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</div>
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<div className="mt-6">
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{activeTab === "timeline" && (
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<CaseTimeline events={caseDetail.recent_events ?? []} />
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)}
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{activeTab === "deadlines" && (
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<DeadlinesList deadlines={deadlines} />
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)}
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{activeTab === "documents" && (
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<DocumentsList documents={documents} />
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)}
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{activeTab === "parties" && (
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<PartyList caseId={id} parties={caseDetail.parties ?? []} />
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)}
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</div>
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</div>
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);
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}
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function DeadlinesList({ deadlines }: { deadlines: Deadline[] }) {
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if (deadlines.length === 0) {
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return (
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<p className="py-8 text-center text-sm text-neutral-400">
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Keine Fristen vorhanden.
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</p>
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);
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}
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const DEADLINE_STATUS: Record<string, string> = {
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pending: "bg-amber-50 text-amber-700",
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completed: "bg-emerald-50 text-emerald-700",
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overdue: "bg-red-50 text-red-700",
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};
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return (
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<div className="space-y-2">
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{deadlines.map((d) => (
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<div
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key={d.id}
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className="flex items-center justify-between rounded-md border border-neutral-200 bg-white px-4 py-3"
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>
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<div>
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<p className="text-sm font-medium text-neutral-900">{d.title}</p>
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{d.description && (
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<p className="mt-0.5 text-sm text-neutral-500">
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{d.description}
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</p>
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)}
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</div>
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<div className="flex items-center gap-3">
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<span
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className={`rounded-full px-2 py-0.5 text-xs font-medium ${DEADLINE_STATUS[d.status] ?? "bg-neutral-100 text-neutral-500"}`}
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>
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{d.status}
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</span>
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<span className="text-sm text-neutral-500">
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{format(new Date(d.due_date), "d. MMM yyyy", { locale: de })}
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</span>
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</div>
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</div>
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))}
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</div>
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);
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}
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function DocumentsList({ documents }: { documents: Document[] }) {
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if (documents.length === 0) {
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return (
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<p className="py-8 text-center text-sm text-neutral-400">
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Keine Dokumente vorhanden.
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</p>
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);
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}
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return (
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<div className="space-y-2">
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{documents.map((doc) => (
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<div
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key={doc.id}
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className="flex items-center justify-between rounded-md border border-neutral-200 bg-white px-4 py-3"
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>
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<div className="flex items-center gap-3">
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<FileText className="h-4 w-4 text-neutral-400" />
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<div>
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<p className="text-sm font-medium text-neutral-900">
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{doc.title}
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</p>
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<div className="flex gap-2 text-xs text-neutral-400">
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{doc.doc_type && <span>{doc.doc_type}</span>}
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{doc.file_size && (
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<span>{(doc.file_size / 1024).toFixed(0)} KB</span>
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)}
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</div>
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</div>
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</div>
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<a
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href={`/api/documents/${doc.id}`}
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className="text-sm text-neutral-500 hover:text-neutral-700"
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>
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Herunterladen
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</a>
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</div>
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))}
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</div>
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);
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}
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