import type { FC } from 'react';
import { useEffect, useState, useCallback, useRef } from 'react';
import {
  Search, Plus, Activity, ShoppingBag, User, Edit2, Phone, Mail, Calendar, Droplet, Heart,
  MapPin, Briefcase, Users, Baby, Stethoscope, FileText, AlertCircle, CheckCircle2, XCircle,
  Download, ChevronRight, AlertTriangle, ClipboardList, Camera, Wallet, X, FileSignature,
} from 'lucide-react';
import Layout from '../components/Layout';
import PatientAdjuntos from '../components/PatientAdjuntos';
import EstadoCuentaPrint from '../components/EstadoCuentaPrint';
import RecargarSaldoModal from '../components/RecargarSaldoModal';
import ReciboPrint from '../components/ReciboPrint';
import FormulariosPaciente from '../components/FormulariosPaciente';
import MembresiasPaciente from '../components/MembresiasPaciente';
import EnviarFormularioModal from '../components/formulario/EnviarFormularioModal';
import { usePatientDrawer } from '../components/PatientDrawer';
import {
  Card,
  Button,
  Input,
  Select,
  Modal,
  Badge,
  EmptyState,
  MobileCard,
  PageHeader,
  Skeleton,
  toast,
  TextArea,
  badgeForAppointmentState,
  badgeForSaleState,
} from '../components/ui';
import type { BadgeVariant } from '../components/ui/Badge';
import { useSearchParams } from 'react-router-dom';
import { odooApi, type Patient, type Appointment, type Sale, type Visita, type Doctor, type EstadoCuenta, type PatientWallet, type ReceiptData } from '../services/odoo';
import { exportToExcel } from '../lib/exporter';
import { useAuth } from '../lib/auth';
import { useI18n, useBusinessTerm } from '../lib/i18n';
import { useSucursales } from '../lib/sucursales';

const fmtMoney = (n: number) =>
  (n || 0).toLocaleString('es-MX', { style: 'currency', currency: 'MXN', maximumFractionDigits: 0 });

const genderOptions = [
  { value: '', label: 'No especificado' },
  { value: 'male', label: 'Masculino' },
  { value: 'female', label: 'Femenino' },
  { value: 'other', label: 'Otro' },
];

const bloodOptions = [
  { value: '', label: 'No especificado' },
  { value: 'a+', label: 'A+' },
  { value: 'a-', label: 'A-' },
  { value: 'b+', label: 'B+' },
  { value: 'b-', label: 'B-' },
  { value: 'ab+', label: 'AB+' },
  { value: 'ab-', label: 'AB-' },
  { value: 'o+', label: 'O+' },
  { value: 'o-', label: 'O-' },
];

const maritalOptions = [
  { value: '', label: 'No especificado' },
  { value: 'single', label: 'Soltero/a' },
  { value: 'married', label: 'Casado/a' },
  { value: 'divorced', label: 'Divorciado/a' },
  { value: 'widowed', label: 'Viudo/a' },
  { value: 'union', label: 'Unión libre' },
  { value: 'other', label: 'Otro' },
];

const formatGender = (gender?: string | false) => {
  if (!gender) return 'No especificado';
  const map: Record<string, string> = {
    male: 'Masculino',
    female: 'Femenino',
    other: 'Otro',
  };
  return map[gender] || gender;
};

const formatMarital = (status?: string) => {
  if (!status) return 'No especificado';
  const opt = maritalOptions.find((o) => o.value === status);
  return opt?.label || status;
};

const formatBlood = (bt?: string | false) => {
  if (!bt || typeof bt !== 'string') return 'No especificado';
  const opt = bloodOptions.find((o) => o.value === bt.toLowerCase());
  return opt?.label || bt.toUpperCase();
};

const appointmentStateLabels: Record<string, string> = {
  pending: 'Pendiente', confirmed: 'Confirmada', arrived: 'Llegó',
  in_progress: 'En curso', done: 'Completada', cancelled: 'Cancelada', no_show: 'No show',
};
const saleStateLabels: Record<string, string> = {
  draft: 'Borrador', confirmed: 'Confirmada', paid: 'Pagada', partial: 'Parcial', cancelled: 'Cancelada',
};
const visitaStateLabels: Record<string, string> = {
  en_curso: 'En curso', completada: 'Completada', cancelada: 'Cancelada',
};
const paymentStateLabels: Record<string, string> = {
  not_paid: 'No pagado', partial: 'Pago parcial', paid: 'Pagado',
};
const mediumLabels: Record<string, string> = { onsite: 'Presencial', videocall: 'Videollamada' };

const completionBadgeClasses = (pct?: number) => {
  const v = pct ?? 0;
  if (v >= 100) return 'bg-brand-mint text-theme-heading';
  if (v < 40) return 'bg-rose-100 text-rose-700';
  return 'bg-theme-warning text-theme-warning-text';
};

const badgeForVisitaState = (state: string): BadgeVariant =>
  state === 'en_curso' ? 'info' : state === 'completada' ? 'success' : state === 'cancelada' ? 'danger' : 'default';

const CRITICAL_ALERTS: { key: keyof Patient; label: string }[] = [
  { key: 'is_pregnant', label: 'Embarazo' },
  { key: 'heart_disease', label: 'Enfermedad cardíaca' },
  { key: 'diabetes', label: 'Diabetes' },
  { key: 'faints_with_needles', label: 'Se desmaya con agujas' },
];

const Pacientes: FC = () => {
  const { brand, can } = useAuth();
  const term = useBusinessTerm();
  const { t } = useI18n();
  const { labelFor: branchLabel } = useSucursales();
  const [patients, setPatients] = useState<Patient[]>([]);
  const [loading, setLoading] = useState(true);
  const [submitting, setSubmitting] = useState(false);
  const [error, setError] = useState<string | null>(null);
  const [searchParams, setSearchParams] = useSearchParams();
  const [search, setSearch] = useState(() => searchParams.get('q') || '');
  const [searchInput, setSearchInput] = useState(() => searchParams.get('q') || '');
  const [page, setPage] = useState(1);
  const [pageSize, setPageSize] = useState(50);
  const [total, setTotal] = useState(0);
  const [totalPages, setTotalPages] = useState(0);
  const [selected, setSelected] = useState<Patient | null>(null);
  const [estadoCuentaOpen, setEstadoCuentaOpen] = useState(false);
  const [history, setHistory] = useState<{ appointments: Appointment[]; sales: Sale[]; visitas: Visita[]; estado_cuenta?: EstadoCuenta } | null>(null);
  // Saldo a favor (monedero, 1 pt = $1 MXN) del paciente abierto
  const [wallet, setWallet] = useState<PatientWallet | null>(null);
  const [recargaOpen, setRecargaOpen] = useState(false);
  const [reciboDeposito, setReciboDeposito] = useState<ReceiptData | null>(null);
  const [historyLoading, setHistoryLoading] = useState(false);
  const [tab, setTab] = useState<'info' | 'clinical' | 'timeline' | 'docs' | 'formularios'>('info');
  const [entryDetail, setEntryDetail] = useState<
    { kind: 'cita'; item: Appointment } | { kind: 'venta'; item: Sale } | { kind: 'visita'; item: Visita } | null
  >(null);
  // Envío de formulario desde el detalle de la cita del historial
  const [enviarFormularioCita, setEnviarFormularioCita] = useState<{ patientId: number; patientName: string; citaId: number } | null>(null);
  const [exporting, setExporting] = useState(false);
  const [onlyIncomplete, setOnlyIncomplete] = useState(false);
  const [onlyVip, setOnlyVip] = useState(false);
  const [onlyRecent, setOnlyRecent] = useState(false);
  const [onlyStale, setOnlyStale] = useState(false);
  const [doctorFilter, setDoctorFilter] = useState('');
  const [doctors, setDoctors] = useState<Doctor[]>([]);
  const [modalOpen, setModalOpen] = useState(false);
  const [editing, setEditing] = useState<Patient | null>(null);
  const [photo, setPhoto] = useState<string | null>(null);
  const photoRef = useRef<HTMLInputElement>(null);
  const { openPatient } = usePatientDrawer();
  // Aviso de duplicado por teléfono/móvil en el formulario de alta/edición
  const [phoneDup, setPhoneDup] = useState<{ id: number; name: string } | null>(null);

  const emptyForm: PatientForm = {
    name: '',
    phone: '',
    email: '',
    birth_date: '',
    gender: '',
    blood_type: '',
    birthplace: '',
    occupation: '',
    marital_status: '',
    emergency_contact: '',
    emergency_phone: '',
    home_phone: '',
    mobile: '',
    whatsapp: '',
    primary_doctor_id: '',
    address_notes: '',
    referred_by: '',
    patient_comments: '',
    internal_notes: '',
    allergies: '',
    medical_history: '',
    current_medication: '',
    medical_notes: '',
    surgeries_notes: '',
    children_count: 0,
    is_pregnant: false,
    is_breastfeeding: false,
    uses_contraceptives: false,
    kidney_problems: false,
    back_pain: false,
    heart_disease: false,
    respiratory_problems: false,
    blood_pressure: false,
    diabetes: false,
    thyroid: false,
    colitis: false,
    constipation: false,
    liver_problems: false,
    surgeries: false,
    varicose_veins: false,
    migraine: false,
    faints_with_needles: false,
  };
  const [form, setForm] = useState<PatientForm>(emptyForm);

  const load = useCallback(async () => {
    try {
      setLoading(true);
      setError(null);
      const res = await odooApi.getPatients({
        search,
        page,
        page_size: pageSize,
        incomplete: onlyIncomplete ? 1 : undefined,
        vip: onlyVip ? 1 : undefined,
        recent: onlyRecent ? 1 : (onlyStale ? 0 : undefined),
        doctor_id: doctorFilter ? parseInt(doctorFilter, 10) : undefined,
      });
      if (res.status === 'success') {
        setPatients(res.patients);
        setTotal(res.total ?? 0);
        setTotalPages(res.total_pages ?? 0);
      }
    } catch (err) {
      setError('Error al cargar pacientes');
      toast.error('Error al cargar pacientes');
      console.error(err);
    } finally {
      setLoading(false);
    }
  }, [search, page, pageSize, onlyIncomplete, onlyVip, onlyRecent, onlyStale, doctorFilter]);

  useEffect(() => {
    setPage(1);
  }, [search, onlyIncomplete, onlyVip, onlyRecent, onlyStale, doctorFilter]);

  // Búsqueda con debounce: el listado se refresca solo, sin botón "Buscar".
  useEffect(() => {
    const t = setTimeout(() => setSearch(searchInput.trim()), 250);
    return () => clearTimeout(t);
  }, [searchInput]);

  useEffect(() => {
    odooApi.getDoctors()
      .then((res) => { if (res.status === 'success') setDoctors(res.doctors); })
      .catch(() => {});
  }, []);

  useEffect(() => {
    load();
  }, [load]);

  const openHistory = async (patient: Patient) => {
    setSelected(patient);
    setTab('info');
    setHistoryLoading(true);
    setWallet(null);
    try {
      const res = await odooApi.getPatientHistory(patient.id);
      if (res.status === 'success') setHistory({ appointments: res.appointments, sales: res.sales, visitas: res.visitas || [], estado_cuenta: res.estado_cuenta });
      odooApi.getPatientWallet(patient.id)
        .then((w) => { if (w.status === 'success') setWallet(w); })
        .catch(() => setWallet(null));
    } catch (err) {
      toast.error('Error al cargar historial');
      console.error(err);
    } finally {
      setHistoryLoading(false);
    }
  };

  const openCreate = () => {
    setEditing(null);
    setForm(emptyForm);
    setPhoto(null);
    setModalOpen(true);
  };

  const openEdit = (patient: Patient) => {
    setEditing(patient);
    setPhoto(null);
    setForm({
      ...emptyForm,
      ...patient,
      birth_date: patient.birth_date || '',
      gender: patient.gender || '',
      blood_type: patient.blood_type || '',
      marital_status: patient.marital_status || '',
      whatsapp: patient.whatsapp || '',
      primary_doctor_id: patient.primary_doctor_id ? String(patient.primary_doctor_id) : '',
      children_count: patient.children_count ?? 0,
      is_pregnant: patient.is_pregnant ?? false,
      is_breastfeeding: patient.is_breastfeeding ?? false,
      uses_contraceptives: patient.uses_contraceptives ?? false,
      kidney_problems: patient.kidney_problems ?? false,
      back_pain: patient.back_pain ?? false,
      heart_disease: patient.heart_disease ?? false,
      respiratory_problems: patient.respiratory_problems ?? false,
      blood_pressure: patient.blood_pressure ?? false,
      diabetes: patient.diabetes ?? false,
      thyroid: patient.thyroid ?? false,
      colitis: patient.colitis ?? false,
      constipation: patient.constipation ?? false,
      liver_problems: patient.liver_problems ?? false,
      surgeries: patient.surgeries ?? false,
      varicose_veins: patient.varicose_veins ?? false,
      migraine: patient.migraine ?? false,
      faints_with_needles: patient.faints_with_needles ?? false,
    });
    setModalOpen(true);
  };

  const updateForm = (patch: Partial<PatientForm>) => {
    setForm((prev) => ({ ...prev, ...patch }));
  };

  // Abrir el formulario de edición desde otra pantalla (p. ej. el botón
  // "Editar" del drawer del expediente): /pacientes?edit=<id>
  const editPatientId = searchParams.get('edit');
  useEffect(() => {
    if (!editPatientId) return;
    let active = true;
    (async () => {
      try {
        const res = await odooApi.getPatient(parseInt(editPatientId, 10));
        if (active && res.status === 'success') openEdit(res.patient);
      } catch (err) {
        toast.error('No se pudo abrir el paciente');
        console.error(err);
      } finally {
        if (active) {
          setSearchParams((prev) => {
            const next = new URLSearchParams(prev);
            next.delete('edit');
            return next;
          }, { replace: true });
        }
      }
    })();
    return () => { active = false; };
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [editPatientId, setSearchParams]);

  // Duplicado de teléfono: se consulta con debounce al escribir (phone o mobile).
  // Al editar se excluye el propio paciente para no auto-alertarse.
  useEffect(() => {
    if (!modalOpen) {
      setPhoneDup(null);
      return;
    }
    const digitsOf = (s: string) => (s || '').replace(/\D/g, '');
    const phone = (form.phone || '').trim();
    const mobile = (form.mobile || '').trim();
    const checkVal = digitsOf(phone).length >= 7 ? phone : mobile;
    if (digitsOf(checkVal).length < 7) {
      setPhoneDup(null);
      return;
    }
    let active = true;
    const t = setTimeout(async () => {
      try {
        const res = await odooApi.checkPatientPhone(checkVal, editing?.id);
        if (active) setPhoneDup(res.status === 'success' && res.exists && res.patient ? { id: res.patient.id, name: res.patient.name } : null);
      } catch {
        if (active) setPhoneDup(null);
      }
    }, 400);
    return () => {
      active = false;
      clearTimeout(t);
    };
  }, [form.phone, form.mobile, editing?.id, modalOpen]);

  const onPhotoChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    const file = e.target.files?.[0];
    e.target.value = '';
    if (!file) return;
    if (file.size > 5 * 1024 * 1024) {
      toast.error('La foto excede 5 MB');
      return;
    }
    const reader = new FileReader();
    reader.onload = () => setPhoto(String(reader.result || ''));
    reader.readAsDataURL(file);
  };

  const save = async () => {
    if (!form.name || !form.phone) {
      toast.error('Nombre y teléfono son obligatorios');
      return;
    }
    try {
      setSubmitting(true);
      const payload: Partial<Patient> = {
        ...form,
        birth_date: form.birth_date || null,
        gender: form.gender || undefined,
        blood_type: form.blood_type || undefined,
        marital_status: form.marital_status || undefined,
        primary_doctor_id: form.primary_doctor_id ? parseInt(form.primary_doctor_id, 10) : null,
      };
      if (photo) payload.photo = photo.split(',')[1] || '';
      if (editing) {
        const res = await odooApi.updatePatient(editing.id, payload);
        toast.success('Paciente actualizado');
        if (selected?.id === editing.id) setSelected(res.patient);
      } else {
        await odooApi.createPatient(payload);
        toast.success('Paciente creado');
      }
      setModalOpen(false);
      await load();
    } catch (err) {
      toast.error(editing ? 'Error al actualizar paciente' : 'Error al crear paciente');
      console.error(err);
    } finally {
      setSubmitting(false);
    }
  };

  const TableHeader = () => (
    <thead className="bg-theme-bg">
      <tr>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase">{t('patients.colName')}</th>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase">{t('patients.colRecord')}</th>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase hidden sm:table-cell">{t('patients.colPhone')}</th>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase hidden md:table-cell">{t('patients.colAge')}</th>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase hidden md:table-cell">{t('patients.colLastVisit')}</th>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase">{term('visit_plural')}</th>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase">{t('patients.colPoints')}</th>
        <th className="text-left p-3 text-xs font-medium text-theme-muted uppercase">{t('patients.colActions')}</th>
      </tr>
    </thead>
  );

  const InfoRow = ({ label, value, icon: Icon }: { label: string; value: React.ReactNode; icon?: typeof User }) => (
    <div className="p-3 bg-theme-bg rounded-xl">
      <p className="text-xs text-theme-muted mb-1">{label}</p>
      <p className="text-sm font-medium text-theme-heading flex items-start">
        {Icon && <Icon size={14} className="mr-1.5 mt-0.5 text-theme-muted shrink-0" />}
        <span className="break-words">{value || '-'}</span>
      </p>
    </div>
  );

  const ClinicalItem = ({ label, value }: { label: string; value?: boolean }) => (
    <div className="flex items-center justify-between p-2.5 bg-theme-surface border border-theme-border rounded-lg">
      <span className="text-sm text-theme-heading">{label}</span>
      {value ? (
        <CheckCircle2 size={16} className="text-theme-heading" />
      ) : (
        <XCircle size={16} className="text-[#D6D3D1]" />
      )}
    </div>
  );

  const timelineItems = history
    ? [
        ...history.appointments.map((a) => ({ kind: 'cita' as const, date: a.date || '', item: a })),
        ...history.sales.map((s) => ({ kind: 'venta' as const, date: (s.date || '').slice(0, 10), item: s })),
        ...history.visitas.map((v) => ({ kind: 'visita' as const, date: (v.date_start || '').slice(0, 10), item: v })),
      ].sort((a, b) => b.date.localeCompare(a.date))
    : [];

  // Exportación COMPLETA: pide al servidor todos los pacientes del filtro
  // (no sólo la página visible). Hoy son ~7.2k filas.
  const exportPatients = async () => {
    try {
      setExporting(true);
      const res = await odooApi.exportPatients({
        search: search || undefined,
        incomplete: onlyIncomplete ? 1 : undefined,
        vip: onlyVip ? 1 : undefined,
        recent: onlyRecent ? 1 : (onlyStale ? 0 : undefined),
        doctor_id: doctorFilter ? parseInt(doctorFilter, 10) : undefined,
      });
      if (res.status !== 'success') {
        toast.error('Error al exportar');
        return;
      }
      const todos = res.patients;
      await exportToExcel({
        filename: `pacientes-${new Date().toISOString().split('T')[0]}`,
        sheetName: 'Pacientes',
        title: `Pacientes ${brand.nombre}`,
        subtitle: res.truncado
          ? `${res.total} de ${res.total_disponible} pacientes (límite ${res.limite})`
          : `${res.total} pacientes (exportación completa)`,
        columns: [
          { header: 'Expediente', key: 'patient_id' },
          { header: 'Nombre', key: 'name' },
          { header: 'Teléfono', key: 'phone' },
          { header: 'Email', key: 'email' },
          { header: 'Fecha nacimiento', key: 'birth_date', format: 'date' },
          { header: 'Género', key: 'gender' },
          { header: 'Última visita', key: 'last_visit', format: 'date' },
          { header: 'Visitas', key: 'total_visits', format: 'number' },
          { header: 'Puntos monedero', key: 'wallet_points', format: 'number' },
          { header: 'Total gastado', key: 'total_spent', format: 'currency' },
          { header: 'Fuente', key: 'source' },
          { header: 'VIP', key: 'vip' },
        ],
        rows: todos.map((p) => ({
          patient_id: p.patient_id, name: p.name, phone: p.phone, email: p.email,
          birth_date: p.birth_date, gender: p.gender || '', last_visit: p.last_visit,
          total_visits: p.total_visits, wallet_points: p.wallet_points,
          total_spent: p.total_spent, source: p.source, vip: p.is_vip ? 'Sí' : 'No',
        })),
      });
      toast.success(`Excel descargado (${res.total} pacientes)`);
    } catch (err) {
      toast.error('Error al exportar');
      console.error(err);
    } finally {
      setExporting(false);
    }
  };

  return (
    <Layout title={term('patient_plural')} subtitle={t('patients.subtitle')}>
      <PageHeader title={term('patient_plural')} subtitle={t('patients.pageSubtitle')}>
        <Button variant="outline" onClick={exportPatients} loading={exporting} disabled={patients.length === 0 || !can('pacientes.exportar')}
          title={can('pacientes.exportar') ? undefined : t('patients.noExportPerm')}>
          <Download size={16} className="mr-2" />
          {t('patients.exportCsv')}
        </Button>
        <Button onClick={openCreate}>
          <Plus size={16} className="mr-2" />
          {t('patients.newWord')} {term('patient_singular').toLowerCase()}
        </Button>
      </PageHeader>

      <Card>
        <Card.Body>
          <div className="flex flex-col sm:flex-row sm:items-center gap-3 mb-4 sm:mb-6">
            <div className="relative w-full sm:max-w-sm">
              <Search size={16} className="absolute left-3 top-1/2 -translate-y-1/2 text-theme-muted pointer-events-none" />
              <Input
                placeholder={t('patients.searchPlaceholder')}
                value={searchInput}
                onChange={(e) => setSearchInput(e.target.value)}
                onKeyDown={(e) => { if (e.key === 'Enter') setSearch(searchInput.trim()); if (e.key === 'Escape') { setSearchInput(''); setSearch(''); } }}
                className="pl-10"
                inputClassName={searchInput ? 'pr-9' : undefined}
              />
              {searchInput && (
                <button
                  type="button"
                  onClick={() => { setSearchInput(''); setSearch(''); }}
                  title={t('patients.clearSearch')}
                  aria-label={t('patients.clearSearch')}
                  className="absolute right-2.5 top-1/2 -translate-y-1/2 p-1 rounded-lg text-theme-muted hover:text-theme-heading hover:bg-theme-bg"
                >
                  <X size={14} />
                </button>
              )}
            </div>
            <Select
              options={[
                { value: '', label: t('patients.allDoctors') },
                ...doctors.map((d) => ({
                  value: String(d.id),
                  label: d.patient_count !== undefined ? `${d.name} (${d.patient_count})` : d.name,
                })),
              ]}
              value={doctorFilter}
              onChange={(e) => setDoctorFilter(e.target.value)}
              className="sm:max-w-[220px]"
            />
          </div>

          {/* Filtros rápidos */}
          <div className="flex flex-wrap items-center gap-2 mb-4 sm:mb-5">
            {([
              { key: 'vip', label: 'VIP', active: onlyVip, set: setOnlyVip },
              { key: 'recent', label: t('patients.filterRecent'), active: onlyRecent, set: (v: boolean) => { setOnlyRecent(v); if (v) setOnlyStale(false); } },
              { key: 'stale', label: t('patients.filterStale'), active: onlyStale, set: (v: boolean) => { setOnlyStale(v); if (v) setOnlyRecent(false); } },
              { key: 'incomplete', label: t('patients.filterIncomplete'), active: onlyIncomplete, set: setOnlyIncomplete },
            ] as const).map((chip) => (
              <button
                key={chip.key}
                type="button"
                onClick={() => chip.set(!chip.active)}
                className={`px-3 py-1.5 rounded-full text-xs font-medium border transition-all ${
                  chip.active
                    ? 'bg-theme-accent text-theme-inverse border-theme-accent'
                    : 'bg-theme-bg text-theme-muted border-theme-border hover:border-theme-border-strong'
                }`}
              >
                {chip.label}
              </button>
            ))}
            {(onlyVip || onlyRecent || onlyStale || onlyIncomplete || doctorFilter) && (
              <button
                type="button"
                onClick={() => { setOnlyVip(false); setOnlyRecent(false); setOnlyStale(false); setOnlyIncomplete(false); setDoctorFilter(''); }}
                className="text-xs text-theme-muted underline underline-offset-2 hover:text-theme-heading"
              >
                {t('patients.clearFilters')}
              </button>
            )}
          </div>

          {error && <p className="text-rose-600 text-sm mb-4">{error}</p>}

          {loading ? (
            <Skeleton count={6} className="h-12 w-full" />
          ) : patients.length === 0 ? (
            <EmptyState
              title={t('patients.emptyTitle')}
              subtitle={t('patients.emptySub')}
              actionLabel={`${t('patients.newWord')} ${term('patient_singular').toLowerCase()}`}
              onAction={openCreate}
            />
          ) : (
            <>
              <div className="hidden sm:block overflow-x-auto">
                <table className="w-full">
                  <TableHeader />
                  <tbody className="divide-y">
                    {patients.map((p) => (
                      <tr key={p.id} className="hover:bg-theme-bg">
                        <td className="p-3 text-sm font-medium text-theme-heading">
                          <button onClick={() => openHistory(p)} className="text-left hover:underline">
                            {p.name}
                          </button>
                        </td>
                        <td className="p-3 text-sm">
                          <span
                            className={`inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium ${completionBadgeClasses(p.expediente_completion)}`}
                            title={p.expediente_missing && p.expediente_missing.length > 0 ? t('patients.missingRecord', { list: p.expediente_missing.join(', ') }) : t('patients.complete')}
                          >
                            {p.expediente_completion ?? 0}%
                          </span>
                        </td>
                        <td className="p-3 text-sm text-theme-muted hidden sm:table-cell">{p.phone}</td>
                        <td className="p-3 text-sm text-theme-muted hidden md:table-cell">{p.age ?? '-'}</td>
                        <td className="p-3 text-sm text-theme-muted hidden md:table-cell">{p.last_visit || '-'}</td>
                        <td className="p-3 text-sm text-theme-muted">{p.total_visits}</td>
                        <td className="p-3 text-sm font-medium text-theme-heading">{p.wallet_points} pts</td>
                        <td className="p-3">
                          <div className="flex items-center gap-1">
                            <Button variant="ghost" size="sm" onClick={() => openHistory(p)} title="Ver detalle">
                              <User size={16} className="text-theme-muted" />
                            </Button>
                            <Button variant="ghost" size="sm" onClick={() => openEdit(p)} title="Editar">
                              <Edit2 size={16} className="text-theme-muted" />
                            </Button>
                          </div>
                        </td>
                      </tr>
                    ))}
                  </tbody>
                </table>
              </div>

              <div className="sm:hidden space-y-3">
                {patients.map((p) => (
                  <MobileCard
                    key={p.id}
                    title={p.name}
                    subtitle={p.phone}
                    rows={[
                      { label: 'Expediente', value: `${p.expediente_completion ?? 0}%` },
                      { label: 'Edad', value: p.age ?? '-' },
                      { label: 'Última visita', value: p.last_visit || '-' },
                      { label: 'Visitas', value: p.total_visits },
                      { label: 'Puntos', value: `${p.wallet_points} pts` },
                    ]}
                    actions={
                      <>
                        <Button variant="ghost" size="sm" onClick={() => openHistory(p)}>
                          <User size={16} />
                        </Button>
                        <Button variant="ghost" size="sm" onClick={() => openEdit(p)}>
                          <Edit2 size={16} />
                        </Button>
                      </>
                    }
                    onClick={() => openHistory(p)}
                  />
                ))}
              </div>

              {/* Paginación */}
              <div className="flex flex-col sm:flex-row items-center justify-between gap-3 mt-4 pt-4 border-t border-theme-border">
                <p className="text-sm text-theme-muted">
                  {total} pacientes · página {page} de {totalPages || 1}
                </p>
                <div className="flex items-center gap-2">
                  <select
                    value={pageSize}
                    onChange={(e) => { setPageSize(parseInt(e.target.value, 10)); setPage(1); }}
                    className="border border-theme-border-strong rounded-lg px-2 py-1.5 text-sm"
                  >
                    <option value={25}>25</option>
                    <option value={50}>50</option>
                    <option value={100}>100</option>
                    <option value={200}>200</option>
                  </select>
                  <Button variant="outline" size="sm" disabled={page <= 1} onClick={() => setPage((p) => Math.max(1, p - 1))}>
                    Anterior
                  </Button>
                  <Button variant="outline" size="sm" disabled={page >= totalPages} onClick={() => setPage((p) => p + 1)}>
                    Siguiente
                  </Button>
                </div>
              </div>
            </>
          )}
        </Card.Body>
      </Card>

      {/* Modal crear/editar */}
      <Modal
        isOpen={modalOpen}
        onClose={() => setModalOpen(false)}
        title={editing ? `Editar ${term('patient_singular').toLowerCase()}` : `Nuevo ${term('patient_singular').toLowerCase()}`}
        maxWidth="2xl"
        footer={
          <>
            <Button variant="outline" onClick={() => setModalOpen(false)}>Cancelar</Button>
            <Button onClick={save} loading={submitting}>{editing ? 'Actualizar' : 'Crear'}</Button>
          </>
        }
      >
        <div className="space-y-6 max-h-[70vh] overflow-y-auto pr-1">
          {/* Foto del paciente */}
          <div className="flex items-center gap-4">
            {photo ? (
              <img src={photo} alt="Foto" className="w-16 h-16 rounded-full object-cover border border-theme-border shrink-0" />
            ) : editing?.has_photo && editing.photo_url ? (
              <img src={odooApi.patientPhotoUrl(editing.photo_url)} alt={editing.name} className="w-16 h-16 rounded-full object-cover border border-theme-border shrink-0" />
            ) : (
              <div className="w-16 h-16 rounded-full bg-theme-accent-bg flex items-center justify-center text-theme-muted shrink-0">
                <Camera size={22} />
              </div>
            )}
            <div>
              <input ref={photoRef} type="file" accept="image/*" className="hidden" onChange={onPhotoChange} />
              <Button variant="outline" size="sm" onClick={() => photoRef.current?.click()}>
                <Camera size={14} className="mr-1.5" /> Subir foto
              </Button>
              <p className="text-xs text-theme-muted mt-1">JPG o PNG, máx 5 MB.</p>
            </div>
          </div>

          <section>
            <h4 className="text-sm font-semibold text-theme-heading mb-3 flex items-center">
              <User size={16} className="mr-2 text-theme-muted" /> Datos generales
            </h4>
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
              <Input label="Nombre *" value={form.name} onChange={(e) => updateForm({ name: e.target.value })} />
              <Input label="Teléfono *" value={form.phone} onChange={(e) => updateForm({ phone: e.target.value })} />
              {phoneDup && (
                <div className="sm:col-span-2 rounded-xl border border-amber-300 bg-amber-50 px-3 py-2.5 text-sm text-amber-800">
                  <p className="font-medium">
                    Este teléfono ya está registrado: {phoneDup.name}. ¿Es la misma persona?
                  </p>
                  <div className="flex flex-wrap gap-2 mt-2">
                    <Button size="sm" variant="outline" onClick={() => openPatient(phoneDup.id)}>
                      Abrir su ficha
                    </Button>
                    <Button size="sm" variant="ghost" onClick={() => setPhoneDup(null)}>
                      Continuar de todos modos
                    </Button>
                  </div>
                </div>
              )}
              <Input label="Email" type="email" value={form.email} onChange={(e) => updateForm({ email: e.target.value })} />
              <Input label="Celular" value={form.mobile} onChange={(e) => updateForm({ mobile: e.target.value })} />
              <Input label="Teléfono casa" value={form.home_phone} onChange={(e) => updateForm({ home_phone: e.target.value })} />
              <Input label="WhatsApp" value={form.whatsapp} onChange={(e) => updateForm({ whatsapp: e.target.value })} />
              <Input label="Fecha de nacimiento" type="date" value={form.birth_date} onChange={(e) => updateForm({ birth_date: e.target.value })} />
              <Select label="Género" options={genderOptions} value={form.gender} onChange={(e) => updateForm({ gender: e.target.value })} />
              <Select label="Tipo sanguíneo" options={bloodOptions} value={form.blood_type} onChange={(e) => updateForm({ blood_type: e.target.value })} />
              <Select
                label="Médico asignado"
                options={[{ value: '', label: 'Sin asignar' }, ...doctors.map((d) => ({ value: String(d.id), label: d.name }))]}
                value={form.primary_doctor_id}
                onChange={(e) => updateForm({ primary_doctor_id: e.target.value })}
              />
            </div>
          </section>

          <section>
            <h4 className="text-sm font-semibold text-theme-heading mb-3 flex items-center">
              <MapPin size={16} className="mr-2 text-theme-muted" /> Datos personales
            </h4>
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
              <Input label="Lugar de nacimiento" value={form.birthplace} onChange={(e) => updateForm({ birthplace: e.target.value })} />
              <Input label="Empleo / Ocupación" value={form.occupation} onChange={(e) => updateForm({ occupation: e.target.value })} />
              <Select label="Estado civil" options={maritalOptions} value={form.marital_status} onChange={(e) => updateForm({ marital_status: e.target.value })} />
              <Input label="Recomendado por" value={form.referred_by} onChange={(e) => updateForm({ referred_by: e.target.value })} />
              <Input label="Contacto de emergencia" value={form.emergency_contact} onChange={(e) => updateForm({ emergency_contact: e.target.value })} />
              <Input label="Teléfono de emergencia" value={form.emergency_phone} onChange={(e) => updateForm({ emergency_phone: e.target.value })} />
            </div>
            <div className="mt-4">
              <TextArea label="Dirección completa" value={form.address_notes} onChange={(e) => updateForm({ address_notes: e.target.value })} />
            </div>
          </section>

          <section>
            <h4 className="text-sm font-semibold text-theme-heading mb-3 flex items-center">
              <Baby size={16} className="mr-2 text-theme-muted" /> Antecedentes gineco-obstétricos
            </h4>
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
              <label className="flex items-center gap-3 p-3 border border-theme-border-strong rounded-xl cursor-pointer hover:bg-theme-bg">
                <input
                  type="checkbox"
                  checked={form.is_pregnant}
                  onChange={(e) => updateForm({ is_pregnant: e.target.checked })}
                  className="w-4 h-4 rounded border-theme-border-strong text-theme-heading focus:ring-[#EDA588]"
                />
                <span className="text-sm text-theme-heading">¿Está embarazada?</span>
              </label>
              <label className="flex items-center gap-3 p-3 border border-theme-border-strong rounded-xl cursor-pointer hover:bg-theme-bg">
                <input
                  type="checkbox"
                  checked={form.is_breastfeeding}
                  onChange={(e) => updateForm({ is_breastfeeding: e.target.checked })}
                  className="w-4 h-4 rounded border-theme-border-strong text-theme-heading focus:ring-[#EDA588]"
                />
                <span className="text-sm text-theme-heading">¿Está lactando?</span>
              </label>
              <label className="flex items-center gap-3 p-3 border border-theme-border-strong rounded-xl cursor-pointer hover:bg-theme-bg">
                <input
                  type="checkbox"
                  checked={form.uses_contraceptives}
                  onChange={(e) => updateForm({ uses_contraceptives: e.target.checked })}
                  className="w-4 h-4 rounded border-theme-border-strong text-theme-heading focus:ring-[#EDA588]"
                />
                <span className="text-sm text-theme-heading">¿Usa anticonceptivos?</span>
              </label>
              <Input
                label="Número de hijos"
                type="number"
                min={0}
                value={String(form.children_count ?? 0)}
                onChange={(e) => updateForm({ children_count: parseInt(e.target.value || '0', 10) })}
              />
            </div>
          </section>

          <section>
            <h4 className="text-sm font-semibold text-theme-heading mb-3 flex items-center">
              <Stethoscope size={16} className="mr-2 text-theme-muted" /> Historia clínica
            </h4>
            <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-3">
              {[
                ['kidney_problems', 'Problemas de riñón'],
                ['back_pain', 'Dolor de espalda'],
                ['heart_disease', 'Enfermedades cardíacas'],
                ['respiratory_problems', 'Problemas respiratorios'],
                ['blood_pressure', 'Presión arterial'],
                ['diabetes', 'Diabetes'],
                ['thyroid', 'Problemas de tiroides'],
                ['colitis', 'Colitis'],
                ['constipation', 'Estreñimiento'],
                ['liver_problems', 'Problemas de hígado'],
                ['surgeries', 'Cirugías'],
                ['varicose_veins', 'Varices'],
                ['migraine', 'Migraña'],
                ['faints_with_needles', 'Se desmaya con agujas'],
              ].map(([key, label]) => {
                const checked = !!form[key as keyof PatientForm];
                return (
                  <label key={key} className="flex items-center gap-3 p-3 border border-theme-border-strong rounded-xl cursor-pointer hover:bg-theme-bg">
                    <input
                      type="checkbox"
                      checked={typeof checked === 'boolean' ? checked : false}
                      onChange={(e) => updateForm({ [key]: e.target.checked } as Partial<PatientForm>)}
                      className="w-4 h-4 rounded border-theme-border-strong text-theme-heading focus:ring-[#EDA588]"
                    />
                    <span className="text-sm text-theme-heading">{label}</span>
                  </label>
                );
              })}
            </div>
            <div className="grid grid-cols-1 gap-4 mt-4">
              <TextArea label="Alergias" value={form.allergies} onChange={(e) => updateForm({ allergies: e.target.value })} />
              <TextArea label="Historial médico" value={form.medical_history} onChange={(e) => updateForm({ medical_history: e.target.value })} />
              <TextArea label="Medicación actual" value={form.current_medication} onChange={(e) => updateForm({ current_medication: e.target.value })} />
              <TextArea label="Detalle de cirugías" value={form.surgeries_notes} onChange={(e) => updateForm({ surgeries_notes: e.target.value })} />
              <TextArea label="Notas médicas adicionales" value={form.medical_notes} onChange={(e) => updateForm({ medical_notes: e.target.value })} />
              <TextArea label="Comentarios del paciente" value={form.patient_comments} onChange={(e) => updateForm({ patient_comments: e.target.value })} />
              <TextArea label="Notas internas (solo equipo, no visible para el paciente)" value={form.internal_notes} onChange={(e) => updateForm({ internal_notes: e.target.value })} />
            </div>
          </section>
        </div>
      </Modal>

      {/* Modal detalle */}
      <Modal
        isOpen={!!selected}
        onClose={() => setSelected(null)}
        title={selected?.name || 'Detalle del paciente'}
        maxWidth="2xl"
        footer={
          <div className="flex items-center gap-2">
            <Button variant="outline" onClick={() => setEstadoCuentaOpen(true)}>
              <FileText size={16} className="mr-2" />
              Estado de cuenta
            </Button>
            <Button
              variant="outline"
              onClick={() => {
                // El modal de detalle se cierra antes de abrir el de edición:
                // ambos comparten z-index y el de detalle, al estar después en
                // el DOM, tapaba el formulario (parecía que "Editar" no hacía nada).
                if (!selected) return;
                const p = selected;
                setSelected(null);
                openEdit(p);
              }}
            >
              <Edit2 size={16} className="mr-2" />
              Editar paciente
            </Button>
          </div>
        }
      >
        <div className="space-y-4">
          {/* Encabezado con foto */}
          {selected && (
            <div className="flex items-center gap-3">
              {selected.has_photo && selected.photo_url ? (
                <img
                  src={odooApi.patientPhotoUrl(selected.photo_url)}
                  alt={selected.name}
                  className="w-14 h-14 rounded-full object-cover border border-theme-border shrink-0"
                />
              ) : (
                <div className="w-14 h-14 rounded-full bg-theme-accent-bg flex items-center justify-center text-lg font-bold text-theme-heading shrink-0">
                  {selected.name.split(' ').filter(Boolean).slice(0, 2).map((w) => w[0]?.toUpperCase()).join('')}
                </div>
              )}
              <div className="min-w-0">
                <p className="font-semibold text-theme-heading truncate">{selected.name}</p>
                <p className="text-xs text-theme-muted truncate">
                  {selected.patient_id}{selected.primary_doctor ? ` · Médico: ${selected.primary_doctor}` : ''}
                </p>
              </div>
            </div>
          )}

          {/* Alertas clínicas */}
          {selected?.allergies && (
            <div className="flex items-start gap-2 p-3 bg-rose-100 text-rose-700 rounded-xl text-sm">
              <AlertTriangle size={16} className="mt-0.5 shrink-0" />
              <p><span className="font-semibold">Alergias:</span> {selected.allergies}</p>
            </div>
          )}
          {selected && CRITICAL_ALERTS.some(({ key }) => selected[key]) && (
            <div className="flex flex-wrap gap-2">
              {CRITICAL_ALERTS.filter(({ key }) => selected[key]).map(({ key, label }) => (
                <span key={key} className="inline-flex items-center gap-1 px-2.5 py-1 rounded-full text-xs font-medium bg-theme-warning text-theme-warning-text">
                  <AlertTriangle size={12} />
                  {label}
                </span>
              ))}
            </div>
          )}

          {/* Completitud del expediente */}
          {selected && (
            <div className="p-3 bg-theme-bg rounded-xl space-y-2">
              <div className="flex items-center justify-between">
                <p className="text-xs text-theme-muted">Completitud del expediente</p>
                <p className="text-sm font-semibold text-theme-heading">{selected.expediente_completion ?? 0}%</p>
              </div>
              <div className="h-2 bg-theme-surface border border-theme-border rounded-full overflow-hidden">
                <div
                  className={`h-full ${(selected.expediente_completion ?? 0) >= 100 ? 'bg-brand-mint' : 'bg-brand-coral'}`}
                  style={{ width: `${selected.expediente_completion ?? 0}%` }}
                />
              </div>
              {selected.expediente_missing && selected.expediente_missing.length > 0 && (
                <div className="flex items-center justify-between gap-2 flex-wrap">
                  <p className="text-xs text-theme-muted">Falta: {selected.expediente_missing.join(', ')}</p>
                  <Button
                    variant="outline"
                    size="sm"
                    onClick={() => { const p = selected; setSelected(null); openEdit(p); }}
                  >
                    Completar expediente
                  </Button>
                </div>
              )}
            </div>
          )}

          <div className="flex gap-2 border-b border-theme-border pb-2 overflow-x-auto">
            {([
              { key: 'info', label: t('patients.tabInfo') },
              { key: 'clinical', label: t('patients.tabClinical') },
              { key: 'timeline', label: t('patients.tabTimeline') },
              { key: 'docs', label: t('patients.tabDocs') },
              { key: 'formularios', label: t('patients.tabForms') },
            ] as const).map(({ key, label }) => (
              <button
                key={key}
                onClick={() => setTab(key)}
                className={`px-3 py-1.5 text-sm font-medium rounded-lg whitespace-nowrap ${
                  tab === key ? 'bg-[#1A1A1A] text-white' : 'text-theme-muted hover:bg-theme-bg'
                }`}
              >
                {label}
              </button>
            ))}
          </div>

          {historyLoading ? (
            <Skeleton count={4} className="h-16 w-full" />
          ) : tab === 'info' ? (
            <div className="space-y-4">
              {/* Estado de cuenta */}
              {history?.estado_cuenta && (
                <div className="p-3 bg-theme-bg rounded-xl">
                  <p className="text-xs font-medium text-theme-muted uppercase mb-2">Estado de cuenta</p>
                  <div className="grid grid-cols-2 sm:grid-cols-4 gap-3">
                    <div>
                      <p className="text-xs text-theme-muted">Puntos monedero</p>
                      <p className="text-sm font-semibold text-theme-heading">{history.estado_cuenta.puntos_monedero} pts</p>
                    </div>
                    <div>
                      <p className="text-xs text-theme-muted">Total gastado</p>
                      <p className="text-sm font-semibold text-theme-heading">${history.estado_cuenta.total_gastado}</p>
                    </div>
                    <div>
                      <p className="text-xs text-theme-muted">Adeudo pendiente</p>
                      <p className={`text-sm font-semibold ${history.estado_cuenta.adeudo > 0 ? 'text-rose-600' : 'text-theme-heading'}`}>
                        ${history.estado_cuenta.adeudo}
                      </p>
                    </div>
                    <div>
                      <p className="text-xs text-theme-muted">Total visitas</p>
                      <p className="text-sm font-semibold text-theme-heading">{history.estado_cuenta.visitas_total}</p>
                    </div>
                  </div>
                </div>
              )}
              {/* Saldo a favor: dinero a cuenta del paciente */}
              <div className="p-3 rounded-xl border border-emerald-200 bg-emerald-50/60">
                <div className="flex flex-wrap items-start justify-between gap-3">
                  <div>
                    <p className="text-xs font-medium text-theme-muted uppercase mb-1 flex items-center gap-1">
                      <Wallet size={12} /> Saldo a favor
                    </p>
                    <p className="text-2xl font-heading font-semibold text-theme-heading">
                      {fmtMoney(wallet?.equivalent_mxn ?? 0)}
                    </p>
                    <p className="text-xs text-theme-muted">
                      {wallet?.equivalent_usd != null
                        ? `≈ ${wallet.equivalent_usd.toLocaleString('en-US', { style: 'currency', currency: 'USD' })} USD`
                        : 'Sin tipo de cambio'}
                      {(wallet?.depositado ?? 0) > 0 ? ` · recargado ${fmtMoney(wallet?.depositado ?? 0)}` : ''}
                    </p>
                  </div>
                  <Button size="sm" variant="outline" onClick={() => setRecargaOpen(true)}>
                    <Plus size={14} className="mr-1.5" /> Recargar saldo
                  </Button>
                </div>
                {(wallet?.movimientos || []).length > 0 && (
                  <div className="mt-3 pt-3 border-t border-emerald-200 max-h-52 overflow-y-auto space-y-1.5">
                    {wallet!.movimientos.slice(0, 25).map((m) => (
                      <div key={m.id} className="flex items-start justify-between gap-2 text-[11px]">
                        <span className="text-theme-muted min-w-0">
                          <span className="block text-theme-heading">{m.narration}</span>
                          <span className="block">{m.date}{m.operator ? ` · ${m.operator}` : ''}</span>
                        </span>
                        <span className={`shrink-0 font-semibold ${m.points > 0 ? 'text-emerald-700' : 'text-rose-600'}`}>
                          {m.points > 0 ? '+' : ''}{m.points}
                        </span>
                      </div>
                    ))}
                  </div>
                )}
              </div>

              <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-3">
                <InfoRow label="Folio" value={selected?.patient_id} icon={FileText} />
                <InfoRow label="Teléfono" value={selected?.phone} icon={Phone} />
                <InfoRow label="Celular" value={selected?.mobile} icon={Phone} />
                <InfoRow label="WhatsApp" value={selected?.whatsapp} icon={Phone} />
                <InfoRow label="Email" value={selected?.email} icon={Mail} />
                <InfoRow label="Teléfono casa" value={selected?.home_phone} icon={Phone} />
                <InfoRow label="Fecha de nacimiento" value={selected?.birth_date} icon={Calendar} />
                <InfoRow label="Edad" value={selected?.age} icon={Calendar} />
                <InfoRow label="Género" value={formatGender(selected?.gender)} icon={User} />
                <InfoRow label="Tipo sanguíneo" value={formatBlood(selected?.blood_type)} icon={Droplet} />
                <InfoRow label="Lugar de nacimiento" value={selected?.birthplace} icon={MapPin} />
                <InfoRow label="Empleo / Ocupación" value={selected?.occupation} icon={Briefcase} />
                <InfoRow label="Estado civil" value={formatMarital(selected?.marital_status)} icon={Users} />
                <InfoRow label="Contacto de emergencia" value={selected?.emergency_contact} icon={AlertCircle} />
                <InfoRow label="Tel. emergencia" value={selected?.emergency_phone} icon={Phone} />
                <InfoRow label="Recomendado por" value={selected?.referred_by} icon={Users} />
                <InfoRow label="Médico asignado" value={selected?.primary_doctor || t('patients.unassigned')} icon={Stethoscope} />
                <InfoRow label="Puntos" value={`${selected?.wallet_points ?? 0} pts`} icon={Heart} />
              </div>
              {selected?.address_notes && (
                <div className="p-3 bg-theme-bg rounded-xl">
                  <p className="text-xs text-theme-muted mb-1">Dirección</p>
                  <p className="text-sm text-theme-heading whitespace-pre-wrap">{selected.address_notes}</p>
                </div>
              )}
              {selected?.patient_comments && (
                <div className="p-3 bg-theme-bg rounded-xl">
                  <p className="text-xs text-theme-muted mb-1">Comentarios</p>
                  <p className="text-sm text-theme-heading whitespace-pre-wrap">{selected.patient_comments}</p>
                </div>
              )}
              {selected?.internal_notes && (
                <div className="p-3 bg-amber-50 border border-theme-bg rounded-xl">
                  <p className="text-xs text-theme-warning-text mb-1">🔒 Notas internas (solo equipo)</p>
                  <p className="text-sm text-theme-heading whitespace-pre-wrap">{selected.internal_notes}</p>
                </div>
              )}
              {/* Membresías del paciente (solo si la clínica las tiene activas) */}
              {selected?.id ? (
                <div className="p-3 rounded-xl border border-theme-border">
                  <MembresiasPaciente partnerId={selected.id} />
                </div>
              ) : null}
            </div>
          ) : tab === 'clinical' ? (
            <div className="space-y-4">
              <div>
                <h4 className="text-sm font-semibold text-theme-heading mb-2 flex items-center">
                  <Baby size={16} className="mr-2 text-theme-muted" /> Gineco-obstétricos
                </h4>
                <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-3">
                  <ClinicalItem label="Embarazo" value={selected?.is_pregnant} />
                  <ClinicalItem label="Lactancia" value={selected?.is_breastfeeding} />
                  <ClinicalItem label="Anticonceptivos" value={selected?.uses_contraceptives} />
                </div>
                <div className="grid grid-cols-1 sm:grid-cols-2 gap-4 mt-3">
                  <InfoRow label="Número de hijos" value={selected?.children_count} />
                </div>
              </div>
              <div>
                <h4 className="text-sm font-semibold text-theme-heading mb-2 flex items-center">
                  <Stethoscope size={16} className="mr-2 text-theme-muted" /> Antecedentes
                </h4>
                <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-3">
                  <ClinicalItem label="Problemas de riñón" value={selected?.kidney_problems} />
                  <ClinicalItem label="Dolor de espalda" value={selected?.back_pain} />
                  <ClinicalItem label="Enfermedades cardíacas" value={selected?.heart_disease} />
                  <ClinicalItem label="Problemas respiratorios" value={selected?.respiratory_problems} />
                  <ClinicalItem label="Presión arterial" value={selected?.blood_pressure} />
                  <ClinicalItem label="Diabetes" value={selected?.diabetes} />
                  <ClinicalItem label="Problemas de tiroides" value={selected?.thyroid} />
                  <ClinicalItem label="Colitis" value={selected?.colitis} />
                  <ClinicalItem label="Estreñimiento" value={selected?.constipation} />
                  <ClinicalItem label="Problemas de hígado" value={selected?.liver_problems} />
                  <ClinicalItem label="Cirugías" value={selected?.surgeries} />
                  <ClinicalItem label="Varices" value={selected?.varicose_veins} />
                  <ClinicalItem label="Migraña" value={selected?.migraine} />
                  <ClinicalItem label="Se desmaya con agujas" value={selected?.faints_with_needles} />
                </div>
              </div>
              {[
                { label: 'Alergias', value: selected?.allergies },
                { label: 'Historial médico', value: selected?.medical_history },
                { label: 'Medicación actual', value: selected?.current_medication },
                { label: 'Detalle de cirugías', value: selected?.surgeries_notes },
                { label: 'Notas médicas adicionales', value: selected?.medical_notes },
              ].map(({ label, value }) =>
                value ? (
                  <div key={label} className="p-3 bg-theme-bg rounded-xl">
                    <p className="text-xs text-theme-muted mb-1">{label}</p>
                    <p className="text-sm text-theme-heading whitespace-pre-wrap">{value}</p>
                  </div>
                ) : null
              )}
            </div>
          ) : tab === 'docs' ? (
            <div className="space-y-6">
              {selected && (
                <>
                  <section>
                    <h4 className="text-sm font-semibold text-theme-heading mb-3 flex items-center">
                      <FileText size={16} className="mr-2 text-theme-muted" /> {t('patients.scannedRecord')}
                    </h4>
                    <PatientAdjuntos patientId={selected.id} kind="expediente" />
                  </section>
                  <section>
                    <h4 className="text-sm font-semibold text-theme-heading mb-3 flex items-center">
                      <ClipboardList size={16} className="mr-2 text-theme-muted" /> Galería de imágenes
                    </h4>
                    <PatientAdjuntos patientId={selected.id} kind="imagen" />
                  </section>
                </>
              )}
            </div>
          ) : tab === 'formularios' ? (
            selected ? (
              <FormulariosPaciente patientId={selected.id} patientName={selected.name} />
            ) : null
          ) : (
            timelineItems.length > 0 ? (
              <div className="space-y-2">
                {timelineItems.map((entry) => (
                  <button
                    key={`${entry.kind}-${entry.item.id}`}
                    type="button"
                    onClick={() => setEntryDetail(entry)}
                    className="w-full text-left p-3 border border-theme-border rounded-xl text-sm transition-all cursor-pointer hover:shadow-card hover:border-theme-border-strong"
                  >
                    <div className="flex items-center justify-between gap-2">
                      <p className="font-medium text-theme-heading flex items-center">
                        {entry.kind === 'cita' ? (
                          <Calendar size={14} className="mr-1.5 text-theme-muted shrink-0" />
                        ) : entry.kind === 'visita' ? (
                          <ClipboardList size={14} className="mr-1.5 text-theme-muted shrink-0" />
                        ) : (
                          <ShoppingBag size={14} className="mr-1.5 text-theme-muted shrink-0" />
                        )}
                        {entry.kind === 'cita' ? `${entry.item.date} ${entry.item.time}` : entry.date}
                      </p>
                      <span className="flex items-center gap-1.5">
                        <Badge variant={
                          entry.kind === 'cita'
                            ? badgeForAppointmentState(entry.item.state)
                            : entry.kind === 'visita'
                              ? badgeForVisitaState(entry.item.state)
                              : badgeForSaleState(entry.item.state)
                        }>
                          {entry.kind === 'cita'
                            ? (appointmentStateLabels[entry.item.state] || entry.item.state)
                            : entry.kind === 'visita'
                              ? (visitaStateLabels[entry.item.state] || entry.item.state)
                              : (saleStateLabels[entry.item.state] || entry.item.state)}
                        </Badge>
                        <ChevronRight size={14} className="text-theme-muted" />
                      </span>
                    </div>
                    <p className="text-theme-muted mt-1">
                      {entry.kind === 'cita'
                        ? entry.item.service
                        : entry.kind === 'visita'
                          ? (entry.item.motivo || entry.item.servicio || 'Visita clínica')
                          : `${entry.item.name} — $${entry.item.total}`}
                    </p>
                  </button>
                ))}
              </div>
            ) : (
              <EmptyState title="Sin historial" subtitle="Este paciente no tiene citas, ventas ni visitas registradas." icon={<Activity size={28} />} />
            )
          )}
        </div>
      </Modal>

      {/* Modal detalle de cita/venta/visita del historial */}
      <Modal
        isOpen={!!entryDetail}
        onClose={() => setEntryDetail(null)}
        title={entryDetail?.kind === 'cita' ? 'Detalle de la cita' : entryDetail?.kind === 'visita' ? 'Detalle de la visita' : 'Detalle de la venta'}
        maxWidth="lg"
        footer={
          entryDetail?.kind === 'cita' && can('formularios.enviar') ? (
            <Button
              variant="outline"
              onClick={() => setEnviarFormularioCita({
                patientId: entryDetail.item.patient_id,
                patientName: entryDetail.item.patient,
                citaId: entryDetail.item.id,
              })}
            >
              <FileSignature size={16} className="mr-2" /> Enviar formulario
            </Button>
          ) : undefined
        }
      >
        {entryDetail?.kind === 'cita' && (
          <div className="space-y-4">
            <div className="flex flex-wrap items-center gap-2">
              <Badge variant={badgeForAppointmentState(entryDetail.item.state)}>
                {appointmentStateLabels[entryDetail.item.state] || entryDetail.item.state}
              </Badge>
              <Badge variant={entryDetail.item.payment_state === 'paid' ? 'paid' : entryDetail.item.payment_state === 'partial' ? 'warning' : 'unpaid'}>
                {paymentStateLabels[entryDetail.item.payment_state] || entryDetail.item.payment_state}
              </Badge>
            </div>
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
              <InfoRow label="Referencia" value={entryDetail.item.reference} icon={FileText} />
              <InfoRow label="Fecha y hora" value={`${entryDetail.item.date} · ${entryDetail.item.time}`} icon={Calendar} />
              <InfoRow label={term('service_singular')} value={entryDetail.item.service} icon={Stethoscope} />
              <InfoRow label={term('doctor_singular')} value={entryDetail.item.doctor || 'Sin asignar'} icon={User} />
              <InfoRow label="Duración" value={entryDetail.item.duration ? `${entryDetail.item.duration} min` : '-'} />
              <InfoRow label="Precio" value={`$${entryDetail.item.price}`} />
              <InfoRow label="Monto pagado" value={`$${entryDetail.item.amount_paid ?? 0}`} />
              <InfoRow label="Sucursal" value={branchLabel(entryDetail.item.branch) || '-'} icon={MapPin} />
              <InfoRow label="Medio" value={mediumLabels[entryDetail.item.medium || ''] || entryDetail.item.medium || '-'} />
              {entryDetail.item.package_finished && (
                <InfoRow label="Paquete terminado" value={entryDetail.item.package_finished_date || 'Sí'} />
              )}
            </div>
            {entryDetail.item.notes && (
              <div className="p-3 bg-theme-bg rounded-xl">
                <p className="text-xs text-theme-muted mb-1">Notas</p>
                <p className="text-sm text-theme-heading whitespace-pre-wrap">{entryDetail.item.notes}</p>
              </div>
            )}
          </div>
        )}
        {entryDetail?.kind === 'venta' && (
          <div className="space-y-4">
            <div className="flex flex-wrap items-center gap-2">
              <Badge variant={badgeForSaleState(entryDetail.item.state)}>
                {saleStateLabels[entryDetail.item.state] || entryDetail.item.state}
              </Badge>
              {entryDetail.item.refunded && (
                <Badge variant="danger">Reembolsada ${entryDetail.item.refund_amount}</Badge>
              )}
            </div>
            <div className="grid grid-cols-2 sm:grid-cols-3 gap-3">
              <InfoRow label="Folio" value={entryDetail.item.name} icon={FileText} />
              <InfoRow label="Fecha" value={entryDetail.item.date} icon={Calendar} />
              <InfoRow label="Subtotal" value={`$${entryDetail.item.subtotal}`} />
              <InfoRow label="Descuento" value={`$${entryDetail.item.discount}`} />
              <InfoRow label="Impuesto" value={`$${entryDetail.item.tax}`} />
              <InfoRow label="Total" value={`$${entryDetail.item.total}`} />
              <InfoRow label="Pagado" value={`$${entryDetail.item.amount_paid}`} />
              <InfoRow label="Por cobrar" value={`$${entryDetail.item.amount_due}`} />
            </div>
            {entryDetail.item.refunded && entryDetail.item.refund_reason && (
              <div className="p-3 bg-rose-100 rounded-xl">
                <p className="text-xs text-rose-700 mb-1">Motivo de reembolso{entryDetail.item.refunded_at ? ` · ${entryDetail.item.refunded_at}` : ''}</p>
                <p className="text-sm text-rose-700">{entryDetail.item.refund_reason}</p>
              </div>
            )}
            <div>
              <p className="text-xs font-medium text-theme-muted uppercase mb-2">Conceptos</p>
              <div className="border border-theme-border rounded-xl overflow-hidden">
                <table className="w-full text-sm">
                  <thead className="bg-theme-bg">
                    <tr>
                      <th className="text-left p-2.5 text-xs font-medium text-theme-muted">{t('patients.colService')}</th>
                      <th className="text-right p-2.5 text-xs font-medium text-theme-muted">{t('patients.colQty')}</th>
                      <th className="text-right p-2.5 text-xs font-medium text-theme-muted">{t('patients.colPrice')}</th>
                      <th className="text-right p-2.5 text-xs font-medium text-theme-muted">{t('common.subtotal')}</th>
                    </tr>
                  </thead>
                  <tbody className="divide-y divide-theme-border">
                    {entryDetail.item.lines.map((line) => (
                      <tr key={line.id}>
                        <td className="p-2.5 text-theme-heading">
                          {line.service || line.description}
                          {line.prescribed_by && (
                            <span className="block text-xs text-theme-muted">Recetó: {line.prescribed_by}</span>
                          )}
                        </td>
                        <td className="p-2.5 text-right text-theme-muted">{line.quantity}</td>
                        <td className="p-2.5 text-right text-theme-muted">${line.price_unit}</td>
                        <td className="p-2.5 text-right font-medium text-theme-heading">${line.subtotal}</td>
                      </tr>
                    ))}
                  </tbody>
                </table>
              </div>
            </div>
          </div>
        )}
        {entryDetail?.kind === 'visita' && (
          <div className="space-y-4">
            <div className="flex flex-wrap items-center gap-2">
              <Badge variant={badgeForVisitaState(entryDetail.item.state)}>
                {visitaStateLabels[entryDetail.item.state] || entryDetail.item.state}
              </Badge>
            </div>
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-3">
              <InfoRow label="Folio" value={entryDetail.item.name} icon={FileText} />
              <InfoRow label="Inicio" value={entryDetail.item.date_start || '-'} icon={Calendar} />
              <InfoRow label="Fin" value={entryDetail.item.date_end || '-'} icon={Calendar} />
              <InfoRow label={term('service_singular')} value={entryDetail.item.servicio || '-'} icon={Stethoscope} />
              <InfoRow label={term('doctor_singular')} value={entryDetail.item.doctor || 'Sin asignar'} icon={User} />
              <InfoRow label="Cosmetóloga" value={entryDetail.item.cosmetologa || 'Sin asignar'} icon={User} />
            </div>
            {[
              { label: 'Motivo de consulta', value: entryDetail.item.motivo },
              { label: 'Diagnóstico', value: entryDetail.item.diagnostico },
              { label: 'Tratamiento', value: entryDetail.item.tratamiento },
              { label: 'Notas', value: entryDetail.item.notas },
            ].map(({ label, value }) =>
              value ? (
                <div key={label} className="p-3 bg-theme-bg rounded-xl">
                  <p className="text-xs text-theme-muted mb-1">{label}</p>
                  <p className="text-sm text-theme-heading whitespace-pre-wrap">{value}</p>
                </div>
              ) : null
            )}
          </div>
        )}
      </Modal>

      {/* Vista de impresión del estado de cuenta */}
      <EstadoCuentaPrint
        isOpen={estadoCuentaOpen}
        onClose={() => setEstadoCuentaOpen(false)}
        paciente={selected}
      />

      <RecargarSaldoModal
        isOpen={recargaOpen}
        onClose={() => setRecargaOpen(false)}
        patientId={selected?.id ?? null}
        patientName={selected?.name}
        saldoActual={wallet?.equivalent_mxn ?? 0}
        onDone={(receipt) => {
          setReciboDeposito(receipt);
          if (selected?.id) {
            odooApi.getPatientWallet(selected.id)
              .then((w) => { if (w.status === 'success') setWallet(w); })
              .catch(() => {});
          }
        }}
      />
      <ReciboPrint receipt={reciboDeposito} onClose={() => setReciboDeposito(null)} />
      <EnviarFormularioModal
        isOpen={!!enviarFormularioCita}
        onClose={() => setEnviarFormularioCita(null)}
        patientId={enviarFormularioCita?.patientId ?? null}
        patientName={enviarFormularioCita?.patientName}
        citaId={enviarFormularioCita?.citaId ?? null}
        onSent={() => {
          if (selected?.id) setTab('formularios');
        }}
      />
    </Layout>
  );
};

interface PatientForm {
  name: string;
  phone: string;
  email: string;
  birth_date: string;
  gender: string;
  blood_type: string;
  birthplace: string;
  occupation: string;
  marital_status: string;
  emergency_contact: string;
  emergency_phone: string;
  home_phone: string;
  mobile: string;
  whatsapp: string;
  primary_doctor_id: string;
  address_notes: string;
  referred_by: string;
  patient_comments: string;
  internal_notes: string;
  allergies: string;
  medical_history: string;
  current_medication: string;
  medical_notes: string;
  surgeries_notes: string;
  children_count: number;
  is_pregnant: boolean;
  is_breastfeeding: boolean;
  uses_contraceptives: boolean;
  kidney_problems: boolean;
  back_pain: boolean;
  heart_disease: boolean;
  respiratory_problems: boolean;
  blood_pressure: boolean;
  diabetes: boolean;
  thyroid: boolean;
  colitis: boolean;
  constipation: boolean;
  liver_problems: boolean;
  surgeries: boolean;
  varicose_veins: boolean;
  migraine: boolean;
  faints_with_needles: boolean;
}

export default Pacientes;