'use client';

import { useCallback, useState } from 'react';

import { useRouter } from 'next/navigation';

import { useAction } from 'next-safe-action/hooks';

import { formatDate } from '@kit/shared/dates';
import { Badge } from '@kit/ui/badge';
import { Button } from '@kit/ui/button';
import { Card, CardContent, CardHeader, CardTitle } from '@kit/ui/card';
import { toast } from '@kit/ui/sonner';
import { useActionWithToast } from '@kit/ui/use-action-with-toast';

import {
  STATUS_LABELS,
  getMemberStatusColor,
  formatAddress,
  formatIban,
  computeAge,
  computeMembershipYears,
} from '../lib/member-utils';
import {
  deleteMember,
  updateMember,
  createMemberRole,
  deleteMemberRole,
  createMemberHonor,
  deleteMemberHonor,
  createMandate,
  revokeMandate,
} from '../server/actions/member-actions';

interface MemberRole {
  id: string;
  role_name: string;
  from_date: string | null;
  until_date: string | null;
  is_active: boolean;
}

interface MemberHonor {
  id: string;
  honor_name: string;
  honor_date: string | null;
  description: string | null;
}

interface SepaMandate {
  id: string;
  mandate_reference: string;
  iban: string;
  bic: string | null;
  account_holder: string;
  mandate_date: string;
  status: string;
  is_primary: boolean;
  sequence: string;
}

interface MemberDetailViewProps {
  member: Record<string, unknown>;
  account: string;
  accountId: string;
  roles?: MemberRole[];
  honors?: MemberHonor[];
  mandates?: SepaMandate[];
}

function DetailRow({
  label,
  value,
}: {
  label: string;
  value: React.ReactNode;
}) {
  return (
    <div className="flex items-start justify-between gap-4 border-b py-2 last:border-b-0">
      <span className="text-muted-foreground text-sm font-medium">{label}</span>
      <span className="text-right text-sm">{value ?? '—'}</span>
    </div>
  );
}

export function MemberDetailView({
  member,
  account,
  accountId,
  roles = [],
  honors = [],
  mandates = [],
}: MemberDetailViewProps) {
  const router = useRouter();

  const memberId = String(member.id ?? '');
  const status = String(member.status ?? 'active');
  const firstName = String(member.first_name ?? '');
  const lastName = String(member.last_name ?? '');
  const fullName = `${firstName} ${lastName}`.trim();

  const { execute: executeDelete, isPending: isDeleting } = useAction(
    deleteMember,
    {
      onSuccess: ({ data }) => {
        if (data?.success) {
          toast.success('Mitglied wurde gekündigt');
          router.push(`/home/${account}/members-cms`);
        }
      },
      onError: ({ error }) => {
        toast.error(error.serverError ?? 'Fehler beim Kündigen');
      },
    },
  );

  const { execute: executeUpdate, isPending: isUpdating } = useAction(
    updateMember,
    {
      onSuccess: ({ data }) => {
        if (data?.success) {
          toast.success('Mitglied wurde archiviert');
          router.refresh();
        }
      },
      onError: ({ error }) => {
        toast.error(error.serverError ?? 'Fehler beim Archivieren');
      },
    },
  );

  const handleDelete = useCallback(() => {
    if (
      !window.confirm(
        `Möchten Sie ${fullName} wirklich kündigen? Diese Aktion kann nicht rückgängig gemacht werden.`,
      )
    ) {
      return;
    }
    executeDelete({ memberId, accountId });
  }, [executeDelete, memberId, accountId, fullName]);

  const handleArchive = useCallback(() => {
    if (!window.confirm(`Möchten Sie ${fullName} wirklich archivieren?`)) {
      return;
    }
    executeUpdate({
      memberId,
      accountId,
      isArchived: true,
    });
  }, [executeUpdate, memberId, accountId, fullName]);

  const age = computeAge(member.date_of_birth as string | null | undefined);
  const membershipYears = computeMembershipYears(
    member.entry_date as string | null | undefined,
  );
  const address = formatAddress(member);
  const iban = formatIban(member.iban as string | null | undefined);

  return (
    <div className="space-y-6">
      {/* Header */}
      <div className="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
        <div className="space-y-1">
          <div className="flex items-center gap-3">
            <h1 className="text-2xl font-bold">{fullName}</h1>
            <Badge variant={getMemberStatusColor(status)}>
              {STATUS_LABELS[status] ?? status}
            </Badge>
          </div>
          <p className="text-muted-foreground text-sm">
            Mitgliedsnr. {String(member.member_number ?? '—')}
          </p>
        </div>
        <div className="flex gap-2">
          <Button
            variant="outline"
            data-test="member-edit-btn"
            onClick={() =>
              router.push(`/home/${account}/members-cms/${memberId}/edit`)
            }
          >
            Bearbeiten
          </Button>
          <Button
            variant="outline"
            disabled={isUpdating}
            onClick={handleArchive}
          >
            {isUpdating ? 'Archiviere...' : 'Archivieren'}
          </Button>
          <Button
            variant="destructive"
            disabled={isDeleting}
            data-test="member-terminate-btn"
            onClick={handleDelete}
          >
            {isDeleting ? 'Wird gekündigt...' : 'Kündigen'}
          </Button>
        </div>
      </div>

      {/* Detail Cards */}
      <div className="grid gap-6 md:grid-cols-2">
        {/* Persönliche Daten */}
        <Card>
          <CardHeader>
            <CardTitle>Persönliche Daten</CardTitle>
          </CardHeader>
          <CardContent>
            <DetailRow label="Vorname" value={firstName} />
            <DetailRow label="Nachname" value={lastName} />
            <DetailRow
              label="Geburtsdatum"
              value={
                member.date_of_birth
                  ? `${formatDate(member.date_of_birth as string)}${age !== null ? ` (${age} Jahre)` : ''}`
                  : null
              }
            />
            <DetailRow
              label="Geschlecht"
              value={String(member.gender ?? '—')}
            />
            <DetailRow
              label="Anrede"
              value={String(member.salutation ?? '—')}
            />
          </CardContent>
        </Card>

        {/* Kontakt */}
        <Card>
          <CardHeader>
            <CardTitle>Kontakt</CardTitle>
          </CardHeader>
          <CardContent>
            <DetailRow label="E-Mail" value={String(member.email ?? '—')} />
            <DetailRow label="Telefon" value={String(member.phone ?? '—')} />
            <DetailRow label="Mobil" value={String(member.mobile ?? '—')} />
          </CardContent>
        </Card>

        {/* Adresse */}
        <Card>
          <CardHeader>
            <CardTitle>Adresse</CardTitle>
          </CardHeader>
          <CardContent>
            <DetailRow label="Adresse" value={address || '—'} />
            <DetailRow label="PLZ" value={String(member.postal_code ?? '—')} />
            <DetailRow label="Ort" value={String(member.city ?? '—')} />
            <DetailRow label="Land" value={String(member.country ?? 'DE')} />
          </CardContent>
        </Card>

        {/* Mitgliedschaft */}
        <Card>
          <CardHeader>
            <CardTitle>Mitgliedschaft</CardTitle>
          </CardHeader>
          <CardContent>
            <DetailRow
              label="Mitgliedsnr."
              value={String(member.member_number ?? '—')}
            />
            <DetailRow
              label="Status"
              value={
                <Badge variant={getMemberStatusColor(status)}>
                  {STATUS_LABELS[status] ?? status}
                </Badge>
              }
            />
            <DetailRow
              label="Eintrittsdatum"
              value={formatDate(member.entry_date as string)}
            />
            <DetailRow
              label="Mitgliedsjahre"
              value={membershipYears > 0 ? `${membershipYears} Jahre` : '—'}
            />
            <DetailRow label="IBAN" value={iban} />
            <DetailRow label="BIC" value={String(member.bic ?? '—')} />
            <DetailRow
              label="Kontoinhaber"
              value={String(member.account_holder ?? '—')}
            />
            <DetailRow label="Notizen" value={String(member.notes ?? '—')} />
          </CardContent>
        </Card>
      </div>

      {/* Roles Section */}
      <RolesSection roles={roles} memberId={memberId} accountId={accountId} />

      {/* Honors Section */}
      <HonorsSection
        honors={honors}
        memberId={memberId}
        accountId={accountId}
      />

      {/* Mandates Section */}
      <MandatesSection
        mandates={mandates}
        memberId={memberId}
        accountId={accountId}
      />

      {/* Back */}
      <div>
        <Button variant="ghost" onClick={() => router.back()}>
          ← Zurück zur Übersicht
        </Button>
      </div>
    </div>
  );
}

/* ─── Roles Section ─── */

function RolesSection({
  roles,
  memberId,
  accountId,
}: {
  roles: MemberRole[];
  memberId: string;
  accountId: string;
}) {
  const router = useRouter();
  const [showForm, setShowForm] = useState(false);
  const [roleName, setRoleName] = useState('');
  const [fromDate, setFromDate] = useState('');
  const [untilDate, setUntilDate] = useState('');

  const { execute: executeCreate, isPending: isCreating } = useActionWithToast(
    createMemberRole,
    {
      successMessage: 'Funktion erstellt',
      onSuccess: () => {
        setShowForm(false);
        setRoleName('');
        setFromDate('');
        setUntilDate('');
        router.refresh();
      },
    },
  );

  const { execute: executeDeleteRole, isPending: isDeletingRole } =
    useActionWithToast(deleteMemberRole, {
      successMessage: 'Funktion gelöscht',
      onSuccess: () => router.refresh(),
    });

  const handleCreate = useCallback(() => {
    if (!roleName.trim()) return;
    executeCreate({
      memberId,
      accountId,
      roleName: roleName.trim(),
      fromDate: fromDate || undefined,
      untilDate: untilDate || undefined,
    });
  }, [executeCreate, memberId, accountId, roleName, fromDate, untilDate]);

  const handleDeleteRole = useCallback(
    (roleId: string) => {
      if (!window.confirm('Funktion wirklich löschen?')) return;
      executeDeleteRole({ roleId });
    },
    [executeDeleteRole],
  );

  return (
    <Card>
      <CardHeader>
        <div className="flex items-center justify-between">
          <CardTitle>Funktionen ({roles.length})</CardTitle>
          <Button
            variant="outline"
            size="sm"
            onClick={() => setShowForm((v) => !v)}
            data-test="add-role-btn"
          >
            Neue Funktion
          </Button>
        </div>
      </CardHeader>
      <CardContent>
        {showForm && (
          <div className="mb-4 space-y-3 rounded-md border p-4">
            <div className="grid gap-3 sm:grid-cols-3">
              <div>
                <label className="mb-1 block text-xs font-medium">
                  Bezeichnung *
                </label>
                <input
                  type="text"
                  value={roleName}
                  onChange={(e) => setRoleName(e.target.value)}
                  placeholder="z.B. Kassier"
                  data-test="role-name-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">Von</label>
                <input
                  type="date"
                  value={fromDate}
                  onChange={(e) => setFromDate(e.target.value)}
                  data-test="role-from-date"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">Bis</label>
                <input
                  type="date"
                  value={untilDate}
                  onChange={(e) => setUntilDate(e.target.value)}
                  data-test="role-until-date"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
            </div>
            <div className="flex gap-2">
              <Button
                size="sm"
                onClick={handleCreate}
                disabled={!roleName.trim() || isCreating}
                data-test="role-save-btn"
              >
                {isCreating ? 'Speichere...' : 'Speichern'}
              </Button>
              <Button
                variant="outline"
                size="sm"
                onClick={() => setShowForm(false)}
              >
                Abbrechen
              </Button>
            </div>
          </div>
        )}

        {roles.length === 0 && !showForm ? (
          <p className="text-muted-foreground text-sm">
            Keine Funktionen vorhanden.
          </p>
        ) : (
          roles.length > 0 && (
            <div className="rounded-md border">
              <table className="w-full text-sm">
                <thead>
                  <tr className="bg-muted/50 border-b">
                    <th className="p-2 text-left font-medium">Bezeichnung</th>
                    <th className="p-2 text-left font-medium">Von</th>
                    <th className="p-2 text-left font-medium">Bis</th>
                    <th className="p-2 text-left font-medium">Aktionen</th>
                  </tr>
                </thead>
                <tbody>
                  {roles.map((role) => (
                    <tr key={role.id} className="border-b">
                      <td className="p-2">{role.role_name}</td>
                      <td className="p-2 text-xs">
                        {role.from_date ? formatDate(role.from_date) : '—'}
                      </td>
                      <td className="p-2 text-xs">
                        {role.until_date ? formatDate(role.until_date) : '—'}
                      </td>
                      <td className="p-2">
                        <Button
                          variant="ghost"
                          size="sm"
                          disabled={isDeletingRole}
                          onClick={() => handleDeleteRole(role.id)}
                          data-test={`delete-role-${role.id}`}
                        >
                          Löschen
                        </Button>
                      </td>
                    </tr>
                  ))}
                </tbody>
              </table>
            </div>
          )
        )}
      </CardContent>
    </Card>
  );
}

/* ─── Honors Section ─── */

function HonorsSection({
  honors,
  memberId,
  accountId,
}: {
  honors: MemberHonor[];
  memberId: string;
  accountId: string;
}) {
  const router = useRouter();
  const [showForm, setShowForm] = useState(false);
  const [honorName, setHonorName] = useState('');
  const [honorDate, setHonorDate] = useState('');
  const [description, setDescription] = useState('');

  const { execute: executeCreate, isPending: isCreating } = useActionWithToast(
    createMemberHonor,
    {
      successMessage: 'Ehrung erstellt',
      onSuccess: () => {
        setShowForm(false);
        setHonorName('');
        setHonorDate('');
        setDescription('');
        router.refresh();
      },
    },
  );

  const { execute: executeDeleteHonor, isPending: isDeletingHonor } =
    useActionWithToast(deleteMemberHonor, {
      successMessage: 'Ehrung gelöscht',
      onSuccess: () => router.refresh(),
    });

  const handleCreate = useCallback(() => {
    if (!honorName.trim()) return;
    executeCreate({
      memberId,
      accountId,
      honorName: honorName.trim(),
      honorDate: honorDate || undefined,
      description: description || undefined,
    });
  }, [executeCreate, memberId, accountId, honorName, honorDate, description]);

  const handleDeleteHonor = useCallback(
    (honorId: string) => {
      if (!window.confirm('Ehrung wirklich löschen?')) return;
      executeDeleteHonor({ honorId });
    },
    [executeDeleteHonor],
  );

  return (
    <Card>
      <CardHeader>
        <div className="flex items-center justify-between">
          <CardTitle>Ehrungen ({honors.length})</CardTitle>
          <Button
            variant="outline"
            size="sm"
            onClick={() => setShowForm((v) => !v)}
            data-test="add-honor-btn"
          >
            Neue Ehrung
          </Button>
        </div>
      </CardHeader>
      <CardContent>
        {showForm && (
          <div className="mb-4 space-y-3 rounded-md border p-4">
            <div className="grid gap-3 sm:grid-cols-3">
              <div>
                <label className="mb-1 block text-xs font-medium">
                  Bezeichnung *
                </label>
                <input
                  type="text"
                  value={honorName}
                  onChange={(e) => setHonorName(e.target.value)}
                  placeholder="z.B. Ehrennadel in Gold"
                  data-test="honor-name-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">Datum</label>
                <input
                  type="date"
                  value={honorDate}
                  onChange={(e) => setHonorDate(e.target.value)}
                  data-test="honor-date-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">
                  Beschreibung
                </label>
                <input
                  type="text"
                  value={description}
                  onChange={(e) => setDescription(e.target.value)}
                  placeholder="Optional"
                  data-test="honor-description-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
            </div>
            <div className="flex gap-2">
              <Button
                size="sm"
                onClick={handleCreate}
                disabled={!honorName.trim() || isCreating}
                data-test="honor-save-btn"
              >
                {isCreating ? 'Speichere...' : 'Speichern'}
              </Button>
              <Button
                variant="outline"
                size="sm"
                onClick={() => setShowForm(false)}
              >
                Abbrechen
              </Button>
            </div>
          </div>
        )}

        {honors.length === 0 && !showForm ? (
          <p className="text-muted-foreground text-sm">
            Keine Ehrungen vorhanden.
          </p>
        ) : (
          honors.length > 0 && (
            <div className="rounded-md border">
              <table className="w-full text-sm">
                <thead>
                  <tr className="bg-muted/50 border-b">
                    <th className="p-2 text-left font-medium">Bezeichnung</th>
                    <th className="p-2 text-left font-medium">Datum</th>
                    <th className="p-2 text-left font-medium">Beschreibung</th>
                    <th className="p-2 text-left font-medium">Aktionen</th>
                  </tr>
                </thead>
                <tbody>
                  {honors.map((honor) => (
                    <tr key={honor.id} className="border-b">
                      <td className="p-2">{honor.honor_name}</td>
                      <td className="p-2 text-xs">
                        {honor.honor_date ? formatDate(honor.honor_date) : '—'}
                      </td>
                      <td className="p-2 text-xs">
                        {honor.description ?? '—'}
                      </td>
                      <td className="p-2">
                        <Button
                          variant="ghost"
                          size="sm"
                          disabled={isDeletingHonor}
                          onClick={() => handleDeleteHonor(honor.id)}
                          data-test={`delete-honor-${honor.id}`}
                        >
                          Löschen
                        </Button>
                      </td>
                    </tr>
                  ))}
                </tbody>
              </table>
            </div>
          )
        )}
      </CardContent>
    </Card>
  );
}

/* ─── Mandates Section ─── */

function MandatesSection({
  mandates,
  memberId,
  accountId,
}: {
  mandates: SepaMandate[];
  memberId: string;
  accountId: string;
}) {
  const router = useRouter();
  const [showForm, setShowForm] = useState(false);
  const [mandateRef, setMandateRef] = useState('');
  const [mandateIban, setMandateIban] = useState('');
  const [mandateBic, setMandateBic] = useState('');
  const [mandateHolder, setMandateHolder] = useState('');
  const [mandateDate, setMandateDate] = useState('');
  const [mandateSequence, setMandateSequence] = useState<
    'FRST' | 'RCUR' | 'FNAL' | 'OOFF'
  >('RCUR');

  const MANDATE_STATUS_LABELS: Record<string, string> = {
    active: 'Aktiv',
    revoked: 'Widerrufen',
    expired: 'Abgelaufen',
  };

  const MANDATE_STATUS_COLORS: Record<
    string,
    'default' | 'secondary' | 'destructive' | 'outline'
  > = {
    active: 'default',
    revoked: 'destructive',
    expired: 'outline',
  };

  const { execute: executeCreate, isPending: isCreating } = useActionWithToast(
    createMandate,
    {
      successMessage: 'Mandat erstellt',
      onSuccess: () => {
        setShowForm(false);
        setMandateRef('');
        setMandateIban('');
        setMandateBic('');
        setMandateHolder('');
        setMandateDate('');
        setMandateSequence('RCUR');
        router.refresh();
      },
    },
  );

  const { execute: executeRevoke, isPending: isRevoking } = useActionWithToast(
    revokeMandate,
    {
      successMessage: 'Mandat widerrufen',
      onSuccess: () => router.refresh(),
    },
  );

  const handleCreate = useCallback(() => {
    if (
      !mandateRef.trim() ||
      !mandateIban.trim() ||
      !mandateHolder.trim() ||
      !mandateDate
    )
      return;
    executeCreate({
      memberId,
      accountId,
      mandateReference: mandateRef.trim(),
      iban: mandateIban.trim(),
      bic: mandateBic.trim() || undefined,
      accountHolder: mandateHolder.trim(),
      mandateDate,
      sequence: mandateSequence,
    });
  }, [
    executeCreate,
    memberId,
    accountId,
    mandateRef,
    mandateIban,
    mandateBic,
    mandateHolder,
    mandateDate,
    mandateSequence,
  ]);

  const handleRevoke = useCallback(
    (mandateId: string) => {
      if (!window.confirm('Mandat wirklich widerrufen?')) return;
      executeRevoke({ mandateId });
    },
    [executeRevoke],
  );

  return (
    <Card>
      <CardHeader>
        <div className="flex items-center justify-between">
          <CardTitle>SEPA-Mandate ({mandates.length})</CardTitle>
          <Button
            variant="outline"
            size="sm"
            onClick={() => setShowForm((v) => !v)}
            data-test="add-mandate-btn"
          >
            Neues Mandat
          </Button>
        </div>
      </CardHeader>
      <CardContent>
        {showForm && (
          <div className="mb-4 space-y-3 rounded-md border p-4">
            <div className="grid gap-3 sm:grid-cols-2">
              <div>
                <label className="mb-1 block text-xs font-medium">
                  Mandatsreferenz *
                </label>
                <input
                  type="text"
                  value={mandateRef}
                  onChange={(e) => setMandateRef(e.target.value)}
                  placeholder="z.B. MAND-001"
                  data-test="mandate-ref-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">IBAN *</label>
                <input
                  type="text"
                  value={mandateIban}
                  onChange={(e) => setMandateIban(e.target.value)}
                  placeholder="DE..."
                  data-test="mandate-iban-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">BIC</label>
                <input
                  type="text"
                  value={mandateBic}
                  onChange={(e) => setMandateBic(e.target.value)}
                  placeholder="Optional"
                  data-test="mandate-bic-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">
                  Kontoinhaber *
                </label>
                <input
                  type="text"
                  value={mandateHolder}
                  onChange={(e) => setMandateHolder(e.target.value)}
                  placeholder="Name des Kontoinhabers"
                  data-test="mandate-holder-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">
                  Mandatsdatum *
                </label>
                <input
                  type="date"
                  value={mandateDate}
                  onChange={(e) => setMandateDate(e.target.value)}
                  data-test="mandate-date-input"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                />
              </div>
              <div>
                <label className="mb-1 block text-xs font-medium">
                  Sequenz
                </label>
                <select
                  value={mandateSequence}
                  onChange={(e) =>
                    setMandateSequence(
                      e.target.value as 'FRST' | 'RCUR' | 'FNAL' | 'OOFF',
                    )
                  }
                  data-test="mandate-sequence-select"
                  className="border-input bg-background flex h-9 w-full rounded-md border px-3 py-1 text-sm"
                >
                  <option value="RCUR">RCUR (wiederkehrend)</option>
                  <option value="FRST">FRST (erstmalig)</option>
                  <option value="FNAL">FNAL (letztmalig)</option>
                  <option value="OOFF">OOFF (einmalig)</option>
                </select>
              </div>
            </div>
            <div className="flex gap-2">
              <Button
                size="sm"
                onClick={handleCreate}
                disabled={
                  !mandateRef.trim() ||
                  !mandateIban.trim() ||
                  !mandateHolder.trim() ||
                  !mandateDate ||
                  isCreating
                }
                data-test="mandate-save-btn"
              >
                {isCreating ? 'Speichere...' : 'Speichern'}
              </Button>
              <Button
                variant="outline"
                size="sm"
                onClick={() => setShowForm(false)}
              >
                Abbrechen
              </Button>
            </div>
          </div>
        )}

        {mandates.length === 0 && !showForm ? (
          <p className="text-muted-foreground text-sm">
            Keine SEPA-Mandate vorhanden.
          </p>
        ) : (
          mandates.length > 0 && (
            <div className="rounded-md border">
              <table className="w-full text-sm">
                <thead>
                  <tr className="bg-muted/50 border-b">
                    <th className="p-2 text-left font-medium">Referenz</th>
                    <th className="p-2 text-left font-medium">IBAN</th>
                    <th className="p-2 text-left font-medium">Kontoinhaber</th>
                    <th className="p-2 text-left font-medium">Datum</th>
                    <th className="p-2 text-left font-medium">Status</th>
                    <th className="p-2 text-left font-medium">Aktionen</th>
                  </tr>
                </thead>
                <tbody>
                  {mandates.map((mandate) => (
                    <tr key={mandate.id} className="border-b">
                      <td className="p-2 font-mono text-xs">
                        {mandate.mandate_reference}
                        {mandate.is_primary && (
                          <Badge variant="secondary" className="ml-2">
                            Primär
                          </Badge>
                        )}
                      </td>
                      <td className="p-2 font-mono text-xs">
                        {formatIban(mandate.iban)}
                      </td>
                      <td className="p-2 text-xs">{mandate.account_holder}</td>
                      <td className="p-2 text-xs">
                        {formatDate(mandate.mandate_date)}
                      </td>
                      <td className="p-2">
                        <Badge
                          variant={
                            MANDATE_STATUS_COLORS[mandate.status] ?? 'secondary'
                          }
                        >
                          {MANDATE_STATUS_LABELS[mandate.status] ??
                            mandate.status}
                        </Badge>
                      </td>
                      <td className="p-2">
                        {mandate.status === 'active' && (
                          <Button
                            variant="ghost"
                            size="sm"
                            disabled={isRevoking}
                            onClick={() => handleRevoke(mandate.id)}
                            data-test={`revoke-mandate-${mandate.id}`}
                          >
                            Widerrufen
                          </Button>
                        )}
                      </td>
                    </tr>
                  ))}
                </tbody>
              </table>
            </div>
          )
        )}
      </CardContent>
    </Card>
  );
}