import React, { useEffect, useState } from 'react';
import { CondoService } from '../services/mockDb';
import { AppSettings, Family, User, AlertDefinition, Condo, Notice, NoticeIconType, NoticeRead } from '../types';
import { Save, Building, Coins, Plus, Pencil, Trash2, X, CalendarCheck, AlertTriangle, User as UserIcon, Server, Bell, Clock, FileText, Lock, Megaphone, CheckCircle2, Info, Hammer, Link as LinkIcon, Eye, Calendar, List, UserCog, Mail, Power } from 'lucide-react';

export const SettingsPage: React.FC = () => {
  const currentUser = CondoService.getCurrentUser();
  const isAdmin = currentUser?.role === 'admin';
  
  // Tab configuration
  type TabType = 'profile' | 'general' | 'condos' | 'families' | 'users' | 'notices' | 'alerts' | 'smtp';
  
  const [activeTab, setActiveTab] = useState<TabType>(isAdmin ? 'general' : 'profile');
  const [loading, setLoading] = useState(true);

  // Profile State
  const [profileForm, setProfileForm] = useState({
     name: currentUser?.name || '',
     phone: currentUser?.phone || '',
     password: '',
     receiveAlerts: currentUser?.receiveAlerts ?? true
  });
  const [profileSaving, setProfileSaving] = useState(false);
  const [profileMsg, setProfileMsg] = useState('');

  // General Settings State
  const [activeCondo, setActiveCondo] = useState<Condo | undefined>(undefined);
  const [globalSettings, setGlobalSettings] = useState<AppSettings | null>(null);
  
  // Condos Management State
  const [condos, setCondos] = useState<Condo[]>([]);
  const [showCondoModal, setShowCondoModal] = useState(false);
  const [editingCondo, setEditingCondo] = useState<Condo | null>(null);
  const [condoForm, setCondoForm] = useState({ name: '', address: '', defaultMonthlyQuota: 100 });

  const [saving, setSaving] = useState(false);
  const [successMsg, setSuccessMsg] = useState('');

  // Families State
  const [families, setFamilies] = useState<Family[]>([]);
  const [showFamilyModal, setShowFamilyModal] = useState(false);
  const [editingFamily, setEditingFamily] = useState<Family | null>(null);
  const [familyForm, setFamilyForm] = useState<{
      name: string; 
      unitNumber: string; 
      contactEmail: string;
      customMonthlyQuota: string; // Use string for input handling, parse to number on save
  }>({ name: '', unitNumber: '', contactEmail: '', customMonthlyQuota: '' });

  // Users State
  const [users, setUsers] = useState<User[]>([]);
  const [showUserModal, setShowUserModal] = useState(false);
  const [editingUser, setEditingUser] = useState<User | null>(null);
  const [userForm, setUserForm] = useState({
      name: '',
      email: '',
      password: '',
      phone: '',
      role: 'user',
      familyId: '',
      receiveAlerts: true
  });

  // Alerts State
  const [alerts, setAlerts] = useState<AlertDefinition[]>([]);
  const [showAlertModal, setShowAlertModal] = useState(false);
  const [editingAlert, setEditingAlert] = useState<AlertDefinition | null>(null);
  const [alertForm, setAlertForm] = useState<Partial<AlertDefinition>>({
      subject: '',
      body: '',
      daysOffset: 1,
      offsetType: 'before_next_month',
      sendHour: 9,
      active: true
  });

  // Notices (Bacheca) State
  const [notices, setNotices] = useState<Notice[]>([]);
  const [showNoticeModal, setShowNoticeModal] = useState(false);
  const [editingNotice, setEditingNotice] = useState<Notice | null>(null);
  const [noticeForm, setNoticeForm] = useState<{
      title: string;
      content: string;
      type: NoticeIconType;
      link: string;
      condoId: string;
      active: boolean;
  }>({
      title: '',
      content: '',
      type: 'info',
      link: '',
      condoId: '',
      active: true
  });
  const [noticeReadStats, setNoticeReadStats] = useState<Record<string, NoticeRead[]>>({});
  
  // Notice Details Modal
  const [showReadDetailsModal, setShowReadDetailsModal] = useState(false);
  const [selectedNoticeId, setSelectedNoticeId] = useState<string | null>(null);

  useEffect(() => {
    const fetchData = async () => {
      try {
        if (isAdmin) {
            const [condoList, activeC, gSettings, fams, usrs, alrts, allNotices] = await Promise.all([
              CondoService.getCondos(),
              CondoService.getActiveCondo(),
              CondoService.getSettings(),
              CondoService.getFamilies(),
              CondoService.getUsers(),
              CondoService.getAlerts(),
              CondoService.getNotices()
            ]);
            setCondos(condoList);
            setActiveCondo(activeC);
            setGlobalSettings(gSettings);
            setFamilies(fams);
            setUsers(usrs);
            setAlerts(alrts);
            setNotices(allNotices);

            // Fetch read stats for notices
            const stats: Record<string, NoticeRead[]> = {};
            for (const n of allNotices) {
                const reads = await CondoService.getNoticeReadStatus(n.id);
                stats[n.id] = reads;
            }
            setNoticeReadStats(stats);

        } else {
             const activeC = await CondoService.getActiveCondo();
             setActiveCondo(activeC);
        }
      } catch(e) {
          console.error(e);
      } finally {
        setLoading(false);
      }
    };
    fetchData();
  }, [isAdmin]);

  // --- Profile Handlers ---
  const handleProfileSubmit = async (e: React.FormEvent) => {
      e.preventDefault();
      setProfileSaving(true);
      setProfileMsg('');
      try {
          await CondoService.updateProfile(profileForm);
          setProfileMsg('Profilo aggiornato con successo!');
          setTimeout(() => setProfileMsg(''), 3000);
          setProfileForm(prev => ({ ...prev, password: '' }));
      } catch (e) {
          setProfileMsg('Errore aggiornamento profilo');
      } finally {
          setProfileSaving(false);
      }
  };


  // --- General Handlers ---
  const handleGeneralSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    if (!activeCondo) return;
    setSaving(true);
    setSuccessMsg('');
    try {
      await CondoService.saveCondo(activeCondo);
      setSuccessMsg('Dati condominio aggiornati!');
      setTimeout(() => setSuccessMsg(''), 3000);
      const list = await CondoService.getCondos();
      setCondos(list);
    } catch (e) {
      console.error(e);
    } finally {
      setSaving(false);
    }
  };
  
  const handleSmtpSubmit = async (e: React.FormEvent) => {
      e.preventDefault();
      if (!globalSettings) return;
      setSaving(true);
      try {
          await CondoService.updateSettings(globalSettings);
          setSuccessMsg('Configurazione SMTP salvata!');
          setTimeout(() => setSuccessMsg(''), 3000);
      } catch (e) {
          console.error(e);
      } finally {
          setSaving(false);
      }
  };

  const handleNewYear = async () => {
    if (!globalSettings) return;
    const nextYear = globalSettings.currentYear + 1;
    if (window.confirm(`Sei sicuro di voler chiudere l'anno ${globalSettings.currentYear} e aprire il ${nextYear}?`)) {
        setSaving(true);
        try {
            const newSettings = { ...globalSettings, currentYear: nextYear };
            await CondoService.updateSettings(newSettings);
            setGlobalSettings(newSettings);
            setSuccessMsg(`Anno ${nextYear} aperto!`);
        } catch(e) { console.error(e); } finally { setSaving(false); }
    }
  };

  // --- Condo Management Handlers ---
  const openAddCondoModal = () => {
      setEditingCondo(null);
      setCondoForm({ name: '', address: '', defaultMonthlyQuota: 100 });
      setShowCondoModal(true);
  };
  
  const openEditCondoModal = (c: Condo) => {
      setEditingCondo(c);
      setCondoForm({ name: c.name, address: c.address || '', defaultMonthlyQuota: c.defaultMonthlyQuota });
      setShowCondoModal(true);
  };

  const handleCondoSubmit = async (e: React.FormEvent) => {
      e.preventDefault();
      try {
          // FIX: Do not generate ID for new condo, let backend/service handle it (POST vs PUT check)
          const payload: Condo = {
              id: editingCondo ? editingCondo.id : '', 
              name: condoForm.name,
              address: condoForm.address,
              defaultMonthlyQuota: condoForm.defaultMonthlyQuota
          };
          
          const savedCondo = await CondoService.saveCondo(payload);
          const list = await CondoService.getCondos();
          setCondos(list);
          
          if (activeCondo?.id === savedCondo.id) {
            setActiveCondo(savedCondo);
          }
          
          // Auto-select if it's the first one or none selected
          if (!activeCondo && list.length === 1) {
             CondoService.setActiveCondo(savedCondo.id);
          }

          setShowCondoModal(false);
          window.dispatchEvent(new Event('condo-updated'));
      } catch (e) { console.error(e); alert("Errore nel salvataggio del condominio"); }
  };
  
  const handleDeleteCondo = async (id: string) => {
      if(!window.confirm("Eliminare questo condominio? Attenzione: operazione irreversibile.")) return;
      try {
          await CondoService.deleteCondo(id);
          setCondos(await CondoService.getCondos());
          window.dispatchEvent(new Event('condo-updated'));
      } catch (e) { console.error(e); }
  };

  // --- Family Handlers ---
  const openAddFamilyModal = () => {
    setEditingFamily(null);
    setFamilyForm({ name: '', unitNumber: '', contactEmail: '', customMonthlyQuota: '' });
    setShowFamilyModal(true);
  };

  const openEditFamilyModal = (family: Family) => {
    setEditingFamily(family);
    setFamilyForm({ 
      name: family.name, 
      unitNumber: family.unitNumber, 
      contactEmail: family.contactEmail || '',
      customMonthlyQuota: family.customMonthlyQuota ? family.customMonthlyQuota.toString() : ''
    });
    setShowFamilyModal(true);
  };

  const handleDeleteFamily = async (id: string) => {
    if (!window.confirm('Eliminare questa famiglia?')) return;
    try {
      await CondoService.deleteFamily(id);
      setFamilies(families.filter(f => f.id !== id));
    } catch (e) { console.error(e); }
  };

  const handleFamilySubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    try {
      const quota = familyForm.customMonthlyQuota ? parseFloat(familyForm.customMonthlyQuota) : undefined;
      
      if (editingFamily) {
        const updatedFamily = { 
            ...editingFamily, 
            name: familyForm.name,
            unitNumber: familyForm.unitNumber,
            contactEmail: familyForm.contactEmail,
            customMonthlyQuota: quota
        };
        await CondoService.updateFamily(updatedFamily);
        setFamilies(families.map(f => f.id === updatedFamily.id ? updatedFamily : f));
      } else {
        const newFamily = await CondoService.addFamily({
            name: familyForm.name,
            unitNumber: familyForm.unitNumber,
            contactEmail: familyForm.contactEmail,
            customMonthlyQuota: quota
        });
        setFamilies([...families, newFamily]);
      }
      setShowFamilyModal(false);
    } catch (e: any) { 
        console.error(e);
        alert(`Errore: ${e.message || "Impossibile salvare la famiglia"}`);
    }
  };

  // --- User Handlers ---
  const openAddUserModal = () => {
      setEditingUser(null);
      setUserForm({ name: '', email: '', password: '', phone: '', role: 'user', familyId: '', receiveAlerts: true });
      setShowUserModal(true);
  };
  const openEditUserModal = (user: User) => {
      setEditingUser(user);
      setUserForm({
          name: user.name || '',
          email: user.email,
          password: '', 
          phone: user.phone || '',
          role: user.role || 'user',
          familyId: user.familyId || '',
          receiveAlerts: user.receiveAlerts ?? true
      });
      setShowUserModal(true);
  };
  const handleUserSubmit = async (e: React.FormEvent) => {
      e.preventDefault();
      try {
          if (editingUser) {
              await CondoService.updateUser(editingUser.id, userForm);
          } else {
              await CondoService.createUser(userForm);
          }
          setUsers(await CondoService.getUsers());
          setShowUserModal(false);
      } catch (e) { alert("Errore"); }
  };
  const handleDeleteUser = async (id: string) => {
      if(!window.confirm("Eliminare utente?")) return;
      await CondoService.deleteUser(id);
      setUsers(users.filter(u => u.id !== id));
  };

  // --- Notice Handlers ---
  const openAddNoticeModal = () => {
      setEditingNotice(null);
      setNoticeForm({ title: '', content: '', type: 'info', link: '', condoId: activeCondo?.id || '', active: true });
      setShowNoticeModal(true);
  };
  const openEditNoticeModal = (n: Notice) => {
      setEditingNotice(n);
      setNoticeForm({ title: n.title, content: n.content, type: n.type, link: n.link || '', condoId: n.condoId, active: n.active });
      setShowNoticeModal(true);
  };
  const handleNoticeSubmit = async (e: React.FormEvent) => {
      e.preventDefault();
      try {
          const payload: Notice = {
              id: editingNotice ? editingNotice.id : '',
              ...noticeForm,
              date: editingNotice ? editingNotice.date : new Date().toISOString()
          };
          await CondoService.saveNotice(payload);
          setNotices(await CondoService.getNotices()); 
          setShowNoticeModal(false);
      } catch (e) { console.error(e); }
  };
  const handleDeleteNotice = async (id: string) => {
      if(!window.confirm("Eliminare annuncio?")) return;
      await CondoService.deleteNotice(id);
      setNotices(notices.filter(n => n.id !== id));
  };
  
  const toggleNoticeActive = async (notice: Notice) => {
      try {
          const updated = { ...notice, active: !notice.active };
          await CondoService.saveNotice(updated);
          setNotices(notices.map(n => n.id === notice.id ? updated : n));
      } catch(e) { console.error(e); }
  };

  const openReadDetails = (noticeId: string) => {
      setSelectedNoticeId(noticeId);
      setShowReadDetailsModal(true);
  };

  // --- Alert Handlers ---
  const openAddAlertModal = () => { setEditingAlert(null); setAlertForm({ subject: '', body: '', daysOffset: 1, offsetType: 'before_next_month', sendHour: 9, active: true }); setShowAlertModal(true); };
  const openEditAlertModal = (alert: AlertDefinition) => { setEditingAlert(alert); setAlertForm(alert); setShowAlertModal(true); };
  const handleAlertSubmit = async (e: React.FormEvent) => {
      e.preventDefault();
      try {
        const payload: AlertDefinition = { id: editingAlert ? editingAlert.id : '', subject: alertForm.subject!, body: alertForm.body!, daysOffset: Number(alertForm.daysOffset), offsetType: alertForm.offsetType as any, sendHour: Number(alertForm.sendHour), active: alertForm.active! };
        const saved = await CondoService.saveAlert(payload);
        setAlerts(editingAlert ? alerts.map(a => a.id === saved.id ? saved : a) : [...alerts, saved]);
        setShowAlertModal(false);
      } catch (e) { console.error(e); }
  };
  const handleDeleteAlert = async (id: string) => { if(!window.confirm("Eliminare avviso?")) return; await CondoService.deleteAlert(id); setAlerts(alerts.filter(a => a.id !== id)); };


  const getCondoName = (id: string) => condos.find(c => c.id === id)?.name || 'Sconosciuto';

  // --- TABS CONFIG ---
  const tabs: {id: TabType, label: string, icon: React.ReactNode}[] = [
      { id: 'profile', label: 'Profilo', icon: <UserIcon className="w-4 h-4"/> },
  ];
  if (isAdmin) {
      tabs.push(
          { id: 'general', label: 'Condominio', icon: <Building className="w-4 h-4"/> },
          { id: 'condos', label: 'Lista Condomini', icon: <List className="w-4 h-4"/> },
          { id: 'families', label: 'Famiglie', icon: <Coins className="w-4 h-4"/> },
          { id: 'users', label: 'Utenti', icon: <UserCog className="w-4 h-4"/> },
          { id: 'notices', label: 'Bacheca', icon: <Megaphone className="w-4 h-4"/> },
          { id: 'alerts', label: 'Avvisi Email', icon: <Bell className="w-4 h-4"/> },
          { id: 'smtp', label: 'Impostazioni Posta', icon: <Mail className="w-4 h-4"/> }
      );
  }

  if (loading) return <div className="p-8 text-center text-slate-400">Caricamento...</div>;

  return (
    <div className="max-w-5xl mx-auto space-y-6 pb-20">
      <div>
        <h2 className="text-2xl font-bold text-slate-800">Impostazioni</h2>
        <p className="text-slate-500 text-sm md:text-base">
            {activeCondo ? `Gestione: ${activeCondo.name}` : 'Pannello di Controllo'}
        </p>
      </div>

      {/* Tabs */}
      <div className="flex border-b border-slate-200 overflow-x-auto no-scrollbar pb-1 gap-1">
        {tabs.map(tab => (
            <button
                key={tab.id}
                onClick={() => setActiveTab(tab.id)}
                className={`px-4 py-3 font-medium text-sm whitespace-nowrap flex items-center gap-2 rounded-t-lg transition-colors ${activeTab === tab.id ? 'text-blue-600 border-b-2 border-blue-600 bg-blue-50/50' : 'text-slate-500 hover:text-slate-700 hover:bg-slate-50'}`}
            >
                {tab.icon}
                {tab.label}
            </button>
        ))}
      </div>

      {/* Profile Tab */}
      {activeTab === 'profile' && (
          <div className="animate-fade-in bg-white rounded-xl shadow-sm border border-slate-200 p-6 max-w-2xl">
              <h3 className="text-lg font-bold text-slate-800 mb-6 flex items-center gap-2">
                  <UserIcon className="w-5 h-5 text-blue-600" /> Il Tuo Profilo
              </h3>
              <form onSubmit={handleProfileSubmit} className="space-y-5">
                  <div className="grid grid-cols-1 md:grid-cols-2 gap-5">
                      <div><label className="text-sm font-medium text-slate-700">Nome</label><input type="text" value={profileForm.name} onChange={(e) => setProfileForm({...profileForm, name: e.target.value})} className="w-full border p-2.5 rounded-lg text-slate-700"/></div>
                      <div><label className="text-sm font-medium text-slate-700">Email</label><input type="email" value={currentUser?.email || ''} disabled className="w-full border bg-slate-50 p-2.5 rounded-lg text-slate-500"/></div>
                      <div><label className="text-sm font-medium text-slate-700">Telefono</label><input type="tel" value={profileForm.phone} onChange={(e) => setProfileForm({...profileForm, phone: e.target.value})} className="w-full border p-2.5 rounded-lg text-slate-700"/></div>
                      <div><label className="text-sm font-medium text-slate-700">Password</label><input type="password" placeholder="Opzionale" value={profileForm.password} onChange={(e) => setProfileForm({...profileForm, password: e.target.value})} className="w-full border p-2.5 rounded-lg text-slate-700"/></div>
                  </div>
                  <button type="submit" disabled={profileSaving} className="bg-blue-600 text-white px-6 py-2.5 rounded-lg font-medium hover:bg-blue-700 flex gap-2"><Save className="w-4 h-4" /> Aggiorna</button>
              </form>
          </div>
      )}

      {/* General Tab */}
      {isAdmin && activeTab === 'general' && (
        <div className="space-y-6 animate-fade-in">
             {!activeCondo ? (
                 <div className="bg-amber-50 border border-amber-200 text-amber-800 p-4 rounded-lg">Nessun condominio selezionato. Crea un condominio nella sezione "Lista Condomini".</div>
             ) : (
                <div className="bg-white rounded-xl shadow-sm border border-slate-200 p-6 md:p-8 max-w-2xl">
                    <h3 className="text-lg font-bold text-slate-800 mb-4 flex items-center gap-2"><Building className="w-5 h-5 text-blue-600" /> Dati Condominio Corrente</h3>
                    <form onSubmit={handleGeneralSubmit} className="space-y-5">
                        <input type="text" value={activeCondo.name} onChange={(e) => setActiveCondo({ ...activeCondo, name: e.target.value })} className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Nome" required />
                        <input type="text" value={activeCondo.address || ''} onChange={(e) => setActiveCondo({ ...activeCondo, address: e.target.value })} className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Indirizzo" />
                        <div>
                             <label className="block text-sm font-medium text-slate-700 mb-1">Quota Mensile Standard (€)</label>
                             <input type="number" value={activeCondo.defaultMonthlyQuota} onChange={(e) => setActiveCondo({ ...activeCondo, defaultMonthlyQuota: parseFloat(e.target.value) })} className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Quota Default" required />
                        </div>
                        <div className="pt-2 flex justify-between"><span className="text-green-600">{successMsg}</span><button type="submit" className="bg-blue-600 text-white px-6 py-2.5 rounded-lg hover:bg-blue-700 flex gap-2"><Save className="w-4 h-4"/> Salva</button></div>
                    </form>
                </div>
             )}
             {globalSettings && (
                 <div className="bg-white rounded-xl shadow-sm border border-slate-200 p-6 md:p-8 max-w-2xl">
                     <h3 className="font-bold text-slate-800 mb-2">Anno Fiscale</h3>
                     <p className="text-slate-600 mb-4">Corrente: <strong>{globalSettings.currentYear}</strong></p>
                     <button type="button" onClick={handleNewYear} className="bg-slate-800 text-white px-4 py-2 rounded-lg text-sm">Chiudi Anno {globalSettings.currentYear}</button>
                 </div>
             )}
        </div>
      )}

      {/* Condos List Tab */}
      {isAdmin && activeTab === 'condos' && (
          <div className="space-y-4 animate-fade-in">
               <div className="flex justify-between items-center bg-blue-50 p-4 rounded-xl border border-blue-100">
                   <div><h3 className="font-bold text-blue-800">I Tuoi Condomini</h3></div>
                   <button onClick={openAddCondoModal} className="bg-blue-600 text-white px-4 py-2 rounded-lg font-medium flex gap-2"><Plus className="w-4 h-4" /> Aggiungi</button>
               </div>
               <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
                   {condos.map(condo => (
                       <div key={condo.id} className={`bg-white p-5 rounded-xl border shadow-sm relative ${activeCondo?.id === condo.id ? 'border-blue-500 ring-1 ring-blue-500' : 'border-slate-200'}`}>
                           {activeCondo?.id === condo.id && <div className="absolute top-3 right-3 text-xs bg-blue-100 text-blue-700 px-2 py-0.5 rounded font-bold uppercase">Attivo</div>}
                           <h4 className="font-bold text-slate-800 text-lg mb-1">{condo.name}</h4>
                           <p className="text-sm text-slate-500 mb-3">{condo.address || 'Nessun indirizzo'}</p>
                           <div className="border-t pt-3 flex gap-2">
                               <button onClick={() => openEditCondoModal(condo)} className="flex-1 py-1.5 bg-slate-50 text-slate-700 rounded text-sm font-medium hover:bg-slate-100">Modifica</button>
                               <button onClick={() => handleDeleteCondo(condo.id)} className="flex-1 py-1.5 bg-red-50 text-red-600 rounded text-sm font-medium hover:bg-red-100">Elimina</button>
                           </div>
                       </div>
                   ))}
               </div>
          </div>
      )}

      {/* Families Tab */}
      {isAdmin && activeTab === 'families' && (
        <div className="space-y-4 animate-fade-in">
          {!activeCondo ? (
              <div className="p-8 text-center bg-slate-50 rounded-xl border border-dashed border-slate-300">
                  <p className="text-slate-500">Seleziona o crea un condominio per gestire le famiglie.</p>
              </div>
          ) : (
            <>
              <div className="flex justify-between items-center">
                 <div className="text-sm text-slate-500">Famiglie in: <span className="font-bold text-slate-800">{activeCondo.name}</span></div>
                 <button onClick={openAddFamilyModal} className="bg-blue-600 text-white px-4 py-2 rounded-lg font-medium flex items-center gap-2"><Plus className="w-4 h-4" /> Aggiungi</button>
              </div>
              <div className="bg-white rounded-xl shadow-sm border border-slate-200 overflow-hidden">
                <table className="w-full text-left text-sm text-slate-600">
                  <thead className="bg-slate-50 text-slate-700 font-semibold border-b"><tr><th className="px-6 py-4">Nome</th><th className="px-6 py-4">Interno</th><th className="px-6 py-4">Email</th><th className="px-6 py-4">Quota</th><th className="px-6 py-4 text-right">Azioni</th></tr></thead>
                  <tbody className="divide-y divide-slate-100">
                    {families.map(family => (
                        <tr key={family.id} className="hover:bg-slate-50">
                        <td className="px-6 py-4 font-medium text-slate-900">{family.name}</td>
                        <td className="px-6 py-4">{family.unitNumber}</td>
                        <td className="px-6 py-4 text-slate-400">{family.contactEmail}</td>
                        <td className="px-6 py-4">
                            {family.customMonthlyQuota ? (
                                <span className="font-bold text-blue-600">€ {family.customMonthlyQuota}</span>
                            ) : (
                                <span className="text-slate-400 italic">Default (€ {activeCondo.defaultMonthlyQuota})</span>
                            )}
                        </td>
                        <td className="px-6 py-4 text-right"><div className="flex justify-end gap-2"><button onClick={() => openEditFamilyModal(family)} className="text-blue-600"><Pencil className="w-4 h-4" /></button><button onClick={() => handleDeleteFamily(family.id)} className="text-red-600"><Trash2 className="w-4 h-4" /></button></div></td>
                        </tr>
                    ))}
                  </tbody>
                </table>
              </div>
            </>
          )}
        </div>
      )}

      {/* Users Tab */}
      {isAdmin && activeTab === 'users' && (
          <div className="space-y-4 animate-fade-in">
              <div className="flex justify-end">
                  <button 
                    onClick={openAddUserModal} 
                    className="bg-blue-600 text-white px-4 py-2 rounded-lg font-medium flex items-center gap-2 hover:bg-blue-700 transition-colors"
                    type="button"
                  >
                    <Plus className="w-4 h-4" /> Nuovo Utente
                  </button>
              </div>
              <div className="bg-white rounded-xl shadow-sm border border-slate-200 overflow-hidden">
                 <table className="w-full text-left text-sm text-slate-600">
                  <thead className="bg-slate-50 text-slate-700 font-semibold border-b"><tr><th className="px-6 py-4">Utente</th><th className="px-6 py-4">Ruolo</th><th className="px-6 py-4 text-right">Azioni</th></tr></thead>
                  <tbody className="divide-y divide-slate-100">
                    {users.map(u => (
                        <tr key={u.id} className="hover:bg-slate-50">
                            <td className="px-6 py-4"><div className="font-medium text-slate-900">{u.name}</div><div className="text-xs text-slate-400">{u.email}</div></td>
                            <td className="px-6 py-4"><span className="bg-slate-100 px-2 py-1 rounded text-xs font-bold uppercase">{u.role}</span></td>
                            <td className="px-6 py-4 text-right"><div className="flex justify-end gap-2"><button onClick={() => openEditUserModal(u)} className="text-blue-600"><Pencil className="w-4 h-4"/></button><button onClick={() => handleDeleteUser(u.id)} className="text-red-600"><Trash2 className="w-4 h-4"/></button></div></td>
                        </tr>
                    ))}
                  </tbody>
                </table>
              </div>
          </div>
      )}

      {/* NOTICES (BACHECA) TAB */}
      {isAdmin && activeTab === 'notices' && (
          <div className="space-y-4 animate-fade-in">
              <div className="flex justify-between items-center bg-blue-50 p-4 rounded-xl border border-blue-100">
                  <div><h3 className="font-bold text-blue-800">Bacheca Condominiale</h3><p className="text-sm text-blue-600">Pubblica avvisi visibili a tutti i condomini.</p></div>
                  <button onClick={openAddNoticeModal} className="bg-blue-600 text-white px-4 py-2 rounded-lg font-medium flex items-center gap-2 hover:bg-blue-700 transition-colors"><Plus className="w-4 h-4" /> Nuovo Avviso</button>
              </div>

              <div className="grid gap-4">
                  {notices.map(notice => (
                      <div key={notice.id} className={`bg-white p-5 rounded-xl border shadow-sm relative transition-all ${notice.active ? 'border-slate-200' : 'border-slate-100 opacity-60 bg-slate-50'}`}>
                           <div className="flex items-start justify-between">
                               <div className="flex items-start gap-3">
                                   <div className={`p-2 rounded-lg ${notice.type === 'warning' ? 'bg-amber-100 text-amber-600' : notice.type === 'maintenance' ? 'bg-orange-100 text-orange-600' : 'bg-blue-100 text-blue-600'}`}>
                                       {notice.type === 'warning' ? <AlertTriangle className="w-5 h-5"/> : notice.type === 'maintenance' ? <Hammer className="w-5 h-5"/> : notice.type === 'event' ? <Calendar className="w-5 h-5"/> : <Info className="w-5 h-5"/>}
                                   </div>
                                   <div>
                                       <h4 className="font-bold text-slate-800">{notice.title}</h4>
                                       <p className="text-xs text-slate-400 font-medium uppercase tracking-wide mb-1">{getCondoName(notice.condoId)} • {new Date(notice.date).toLocaleDateString()}</p>
                                       <p className="text-sm text-slate-600 line-clamp-2">{notice.content}</p>
                                       {notice.link && <a href={notice.link} className="text-xs text-blue-600 underline mt-1 flex items-center gap-1"><LinkIcon className="w-3 h-3"/> Allegato</a>}
                                   </div>
                               </div>
                               <div className="flex flex-col items-end gap-3">
                                   {/* Toggle Active */}
                                   <button 
                                      onClick={() => toggleNoticeActive(notice)}
                                      className={`relative inline-flex h-6 w-11 items-center rounded-full transition-colors ${notice.active ? 'bg-green-500' : 'bg-slate-300'}`}
                                      title={notice.active ? "Attivo" : "Disattivato"}
                                   >
                                      <span className={`inline-block h-4 w-4 transform rounded-full bg-white transition-transform ${notice.active ? 'translate-x-6' : 'translate-x-1'}`} />
                                   </button>
                                   
                                   {/* Reads Counter */}
                                   <button 
                                      onClick={() => openReadDetails(notice.id)}
                                      className="text-center group"
                                      title="Vedi dettaglio letture"
                                   >
                                       <span className="block text-lg font-bold text-slate-700 group-hover:text-blue-600">{noticeReadStats[notice.id]?.length || 0}</span>
                                       <span className="text-[10px] text-slate-400 uppercase font-bold flex items-center gap-1 group-hover:text-blue-500"><Eye className="w-3 h-3"/> Letture</span>
                                   </button>
                               </div>
                           </div>
                           <div className="mt-4 pt-3 border-t border-slate-100 flex justify-end gap-2">
                               <button onClick={() => openEditNoticeModal(notice)} className="text-sm text-blue-600 font-medium px-3 py-1 hover:bg-blue-50 rounded">Modifica</button>
                               <button onClick={() => handleDeleteNotice(notice.id)} className="text-sm text-red-600 font-medium px-3 py-1 hover:bg-red-50 rounded">Elimina</button>
                           </div>
                      </div>
                  ))}
                  {notices.length === 0 && <div className="text-center p-8 text-slate-400">Nessun avviso pubblicato.</div>}
              </div>
          </div>
      )}

      {/* Alerts Tab */}
      {isAdmin && activeTab === 'alerts' && (
          <div className="space-y-4 animate-fade-in">
             <div className="flex justify-between items-center">
                 <h3 className="font-bold text-slate-800">Avvisi Automatici Email</h3>
                 <button onClick={openAddAlertModal} className="bg-blue-600 text-white px-4 py-2 rounded-lg flex items-center gap-2 hover:bg-blue-700 transition-colors"><Plus className="w-4 h-4"/> Nuovo</button>
             </div>
             {alerts.map(a => (
                 <div key={a.id} className="bg-white p-4 rounded-xl border flex justify-between items-center">
                     <div><h4 className="font-bold text-slate-800">{a.subject}</h4><p className="text-sm text-slate-500">{a.body}</p></div>
                     <div className="flex gap-2"><button onClick={() => openEditAlertModal(a)} className="text-blue-600 p-2 hover:bg-blue-50 rounded"><Pencil className="w-4 h-4"/></button><button onClick={() => handleDeleteAlert(a.id)} className="text-red-600 p-2 hover:bg-red-50 rounded"><Trash2 className="w-4 h-4"/></button></div>
                 </div>
             ))}
          </div>
      )}

      {isAdmin && activeTab === 'smtp' && (
           <div className="bg-white rounded-xl shadow-sm border border-slate-200 p-6 max-w-2xl animate-fade-in">
              <h3 className="text-lg font-bold text-slate-800 mb-4 flex items-center gap-2"><Server className="w-5 h-5"/> Server SMTP Globale</h3>
              {globalSettings && (
                  <form onSubmit={handleSmtpSubmit} className="space-y-4">
                      <div className="grid grid-cols-2 gap-4">
                          <input type="text" placeholder="Host" value={globalSettings.smtpConfig?.host} onChange={e => setGlobalSettings({...globalSettings, smtpConfig: {...globalSettings.smtpConfig!, host: e.target.value}})} className="border p-2 rounded text-slate-700"/>
                          <input type="number" placeholder="Port" value={globalSettings.smtpConfig?.port} onChange={e => setGlobalSettings({...globalSettings, smtpConfig: {...globalSettings.smtpConfig!, port: parseInt(e.target.value)}})} className="border p-2 rounded text-slate-700"/>
                      </div>
                      <div className="grid grid-cols-2 gap-4">
                          <input type="text" placeholder="User" value={globalSettings.smtpConfig?.user} onChange={e => setGlobalSettings({...globalSettings, smtpConfig: {...globalSettings.smtpConfig!, user: e.target.value}})} className="border p-2 rounded text-slate-700"/>
                          <input type="password" placeholder="Pass" value={globalSettings.smtpConfig?.pass} onChange={e => setGlobalSettings({...globalSettings, smtpConfig: {...globalSettings.smtpConfig!, pass: e.target.value}})} className="border p-2 rounded text-slate-700"/>
                      </div>
                      <button type="submit" className="bg-blue-600 text-white px-6 py-2 rounded-lg w-full">Salva Configurazione SMTP</button>
                  </form>
              )}
           </div>
      )}

      {/* MODALS */}
      
      {/* CONDO MODAL */}
      {showCondoModal && (
          <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4 backdrop-blur-sm">
              <div className="bg-white rounded-xl shadow-xl w-full max-w-md p-6 animate-in fade-in zoom-in duration-200">
                  <h3 className="font-bold text-lg mb-4 text-slate-800">{editingCondo ? 'Modifica Condominio' : 'Nuovo Condominio'}</h3>
                  <form onSubmit={handleCondoSubmit} className="space-y-4">
                      <input className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Nome Condominio" value={condoForm.name} onChange={e => setCondoForm({...condoForm, name: e.target.value})} required />
                      <input className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Indirizzo" value={condoForm.address} onChange={e => setCondoForm({...condoForm, address: e.target.value})} />
                      <div className="flex items-center gap-2"><span className="text-sm font-medium text-slate-600">Quota Default €</span><input type="number" className="border p-2 rounded w-24 text-slate-700" value={condoForm.defaultMonthlyQuota} onChange={e => setCondoForm({...condoForm, defaultMonthlyQuota: parseFloat(e.target.value)})} /></div>
                      <div className="flex gap-2 pt-2">
                          <button type="button" onClick={() => setShowCondoModal(false)} className="flex-1 border p-2.5 rounded-lg text-slate-600 hover:bg-slate-50">Annulla</button>
                          <button type="submit" className="flex-1 bg-blue-600 text-white p-2.5 rounded-lg hover:bg-blue-700">Salva</button>
                      </div>
                  </form>
              </div>
          </div>
      )}

      {/* NOTICE MODAL */}
      {showNoticeModal && (
          <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4 backdrop-blur-sm">
              <div className="bg-white rounded-xl shadow-xl w-full max-w-lg p-6 animate-in fade-in zoom-in duration-200">
                  <h3 className="font-bold text-lg mb-4 text-slate-800 flex items-center gap-2">
                      <Megaphone className="w-5 h-5 text-blue-600"/>
                      {editingNotice ? 'Modifica Avviso' : 'Nuovo Avviso'}
                  </h3>
                  <form onSubmit={handleNoticeSubmit} className="space-y-4">
                      <div>
                          <label className="text-xs font-bold text-slate-500 uppercase">Titolo</label>
                          <input className="w-full border p-2.5 rounded-lg text-slate-700" value={noticeForm.title} onChange={e => setNoticeForm({...noticeForm, title: e.target.value})} required />
                      </div>
                      
                      <div className="grid grid-cols-2 gap-4">
                          <div>
                              <label className="text-xs font-bold text-slate-500 uppercase">Tipo</label>
                              <select className="w-full border p-2.5 rounded-lg text-slate-700 bg-white" value={noticeForm.type} onChange={e => setNoticeForm({...noticeForm, type: e.target.value as any})}>
                                  <option value="info">Informazione</option>
                                  <option value="warning">Avviso / Pericolo</option>
                                  <option value="maintenance">Manutenzione</option>
                                  <option value="event">Evento</option>
                              </select>
                          </div>
                          <div>
                              <label className="text-xs font-bold text-slate-500 uppercase">Condominio</label>
                              <select className="w-full border p-2.5 rounded-lg text-slate-700 bg-white" value={noticeForm.condoId} onChange={e => setNoticeForm({...noticeForm, condoId: e.target.value})}>
                                  {condos.map(c => <option key={c.id} value={c.id}>{c.name}</option>)}
                              </select>
                          </div>
                      </div>

                      <div>
                          <label className="text-xs font-bold text-slate-500 uppercase">Contenuto</label>
                          <textarea className="w-full border p-2.5 rounded-lg text-slate-700 h-24" value={noticeForm.content} onChange={e => setNoticeForm({...noticeForm, content: e.target.value})} required />
                      </div>

                      <div>
                          <label className="text-xs font-bold text-slate-500 uppercase">Link Documento (Opzionale)</label>
                          <div className="relative">
                              <LinkIcon className="absolute left-3 top-3 w-4 h-4 text-slate-400"/>
                              <input className="w-full border p-2.5 pl-9 rounded-lg text-slate-700" placeholder="https://..." value={noticeForm.link} onChange={e => setNoticeForm({...noticeForm, link: e.target.value})} />
                          </div>
                      </div>

                      <div className="flex items-center gap-2">
                          <input type="checkbox" checked={noticeForm.active} onChange={e => setNoticeForm({...noticeForm, active: e.target.checked})} className="w-4 h-4 text-blue-600"/>
                          <span className="text-sm font-medium text-slate-700">Visibile ai condomini</span>
                      </div>

                      <div className="flex gap-2 pt-2">
                          <button type="button" onClick={() => setShowNoticeModal(false)} className="flex-1 border p-2.5 rounded-lg text-slate-600 hover:bg-slate-50">Annulla</button>
                          <button type="submit" className="flex-1 bg-blue-600 text-white p-2.5 rounded-lg hover:bg-blue-700">Pubblica</button>
                      </div>
                  </form>
              </div>
          </div>
      )}

      {/* FAMILY MODAL */}
      {showFamilyModal && (
        <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4 backdrop-blur-sm">
          <div className="bg-white rounded-2xl shadow-xl w-full max-w-md p-6">
            <h3 className="font-bold text-lg mb-4 text-slate-800">{editingFamily ? 'Modifica Famiglia' : 'Nuova Famiglia'}</h3>
            <form onSubmit={handleFamilySubmit} className="space-y-4">
              <input type="text" required value={familyForm.name} onChange={(e) => setFamilyForm({...familyForm, name: e.target.value})} className="w-full border rounded-lg p-3 text-slate-700" placeholder="Nome Famiglia"/>
              <input type="text" required value={familyForm.unitNumber} onChange={(e) => setFamilyForm({...familyForm, unitNumber: e.target.value})} className="w-full border rounded-lg p-3 text-slate-700" placeholder="Interno"/>
              <input type="email" value={familyForm.contactEmail} onChange={(e) => setFamilyForm({...familyForm, contactEmail: e.target.value})} className="w-full border rounded-lg p-3 text-slate-700" placeholder="Email"/>
              
              <div className="pt-2 border-t border-slate-100">
                   <label className="block text-xs font-bold text-slate-500 uppercase mb-1">Quota Mensile Personalizzata</label>
                   <p className="text-xs text-slate-400 mb-2">Lasciare vuoto per usare il default del condominio (€ {activeCondo?.defaultMonthlyQuota})</p>
                   <input 
                      type="number" 
                      step="0.01" 
                      value={familyForm.customMonthlyQuota} 
                      onChange={(e) => setFamilyForm({...familyForm, customMonthlyQuota: e.target.value})} 
                      className="w-full border rounded-lg p-3 text-slate-700" 
                      placeholder="Es. 120.00"
                   />
              </div>

              <div className="flex gap-3 pt-4">
                <button type="button" onClick={() => setShowFamilyModal(false)} className="flex-1 p-3 border rounded-lg text-slate-600">Annulla</button>
                <button type="submit" className="flex-1 p-3 bg-blue-600 text-white rounded-lg">Salva</button>
              </div>
            </form>
          </div>
        </div>
      )}
      
      {/* ALERT MODAL */}
      {showAlertModal && (
          <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4 backdrop-blur-sm">
              <div className="bg-white rounded-xl shadow-xl w-full max-w-md p-6 animate-in fade-in zoom-in duration-200">
                  <h3 className="font-bold text-lg mb-4 text-slate-800">{editingAlert ? 'Modifica Avviso' : 'Nuovo Avviso Automatico'}</h3>
                  <form onSubmit={handleAlertSubmit} className="space-y-4">
                      <input className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Oggetto Email" value={alertForm.subject} onChange={e => setAlertForm({...alertForm, subject: e.target.value})} required />
                      <textarea className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Corpo Email" value={alertForm.body} onChange={e => setAlertForm({...alertForm, body: e.target.value})} required />
                      
                      <div className="grid grid-cols-2 gap-3">
                          <div>
                              <label className="text-xs text-slate-500 font-bold uppercase">Giorni Offset</label>
                              <input type="number" className="w-full border p-2.5 rounded-lg text-slate-700" value={alertForm.daysOffset} onChange={e => setAlertForm({...alertForm, daysOffset: parseInt(e.target.value)})} />
                          </div>
                          <div>
                              <label className="text-xs text-slate-500 font-bold uppercase">Ora Invio</label>
                              <input type="number" min="0" max="23" className="w-full border p-2.5 rounded-lg text-slate-700" value={alertForm.sendHour} onChange={e => setAlertForm({...alertForm, sendHour: parseInt(e.target.value)})} />
                          </div>
                      </div>
                      
                      <div>
                           <label className="text-xs text-slate-500 font-bold uppercase">Tipo Offset</label>
                           <select className="w-full border p-2.5 rounded-lg text-slate-700 bg-white" value={alertForm.offsetType} onChange={e => setAlertForm({...alertForm, offsetType: e.target.value as any})}>
                               <option value="before_next_month">Giorni prima del prossimo mese</option>
                               <option value="after_current_month">Giorni dopo inizio mese</option>
                           </select>
                      </div>

                      <div className="flex gap-2 pt-2">
                          <button type="button" onClick={() => setShowAlertModal(false)} className="flex-1 border p-2.5 rounded-lg text-slate-600">Annulla</button>
                          <button type="submit" className="flex-1 bg-blue-600 text-white p-2.5 rounded-lg">Salva</button>
                      </div>
                  </form>
              </div>
          </div>
      )}

      {/* READ DETAILS MODAL */}
      {showReadDetailsModal && selectedNoticeId && (
          <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4 backdrop-blur-sm">
             <div className="bg-white rounded-xl shadow-xl w-full max-w-md p-6 animate-in fade-in zoom-in duration-200">
                 <div className="flex justify-between items-center mb-4">
                     <h3 className="font-bold text-lg text-slate-800">Dettaglio Letture</h3>
                     <button onClick={() => setShowReadDetailsModal(false)} className="p-1 rounded hover:bg-slate-100 text-slate-500"><X className="w-5 h-5"/></button>
                 </div>
                 
                 <div className="max-h-64 overflow-y-auto pr-2">
                     {noticeReadStats[selectedNoticeId] && noticeReadStats[selectedNoticeId].length > 0 ? (
                         <div className="space-y-3">
                             {noticeReadStats[selectedNoticeId].map((read, idx) => {
                                 const user = users.find(u => u.id === read.userId);
                                 return (
                                     <div key={idx} className="flex items-center justify-between p-3 bg-slate-50 rounded-lg border border-slate-100">
                                         <div className="flex items-center gap-3">
                                              <div className="bg-blue-100 p-2 rounded-full"><UserIcon className="w-4 h-4 text-blue-600"/></div>
                                              <div>
                                                  <p className="text-sm font-bold text-slate-800">{user?.name || 'Utente Sconosciuto'}</p>
                                                  <p className="text-xs text-slate-500">{user?.email}</p>
                                              </div>
                                         </div>
                                         <div className="text-right">
                                             <p className="text-xs text-slate-500">{new Date(read.readAt).toLocaleDateString()}</p>
                                             <p className="text-xs font-mono text-slate-400">{new Date(read.readAt).toLocaleTimeString([], {hour: '2-digit', minute:'2-digit'})}</p>
                                         </div>
                                     </div>
                                 );
                             })}
                         </div>
                     ) : (
                         <p className="text-center text-slate-400 py-8">Nessuna lettura registrata.</p>
                     )}
                 </div>
             </div>
          </div>
      )}

      {/* USER MODAL */}
      {showUserModal && (
          <div className="fixed inset-0 bg-black/50 z-50 flex items-center justify-center p-4 backdrop-blur-sm">
              <div className="bg-white rounded-xl shadow-xl w-full max-w-md p-6 animate-in fade-in zoom-in duration-200">
                  <h3 className="font-bold text-lg mb-4 text-slate-800">{editingUser ? 'Modifica Utente' : 'Nuovo Utente'}</h3>
                  <form onSubmit={handleUserSubmit} className="space-y-4">
                      <input className="w-full border p-2.5 rounded-lg text-slate-700" placeholder="Nome Completo" value={userForm.name} onChange={e => setUserForm({...userForm, name: e.target.value})} required />
                      <input className="w-full border p-2.5 rounded-lg text-slate-700" type="email" placeholder="Email" value={userForm.email} onChange={e => setUserForm({...userForm, email: e.target.value})} required />
                      <input className="w-full border p-2.5 rounded-lg text-slate-700" type="tel" placeholder="Telefono" value={userForm.phone} onChange={e => setUserForm({...userForm, phone: e.target.value})} />
                      <input className="w-full border p-2.5 rounded-lg text-slate-700" type="password" placeholder={editingUser ? "Nuova Password (opzionale)" : "Password"} value={userForm.password} onChange={e => setUserForm({...userForm, password: e.target.value})} required={!editingUser} />
                      
                      <div className="grid grid-cols-2 gap-3">
                           <div>
                               <label className="text-xs text-slate-500 font-bold uppercase mb-1 block">Ruolo</label>
                               <select className="w-full border p-2.5 rounded-lg text-slate-700 bg-white" value={userForm.role} onChange={e => setUserForm({...userForm, role: e.target.value as any})}>
                                  <option value="user">Utente</option>
                                  <option value="admin">Admin</option>
                                  <option value="poweruser">Power User</option>
                               </select>
                           </div>
                           <div>
                               <label className="text-xs text-slate-500 font-bold uppercase mb-1 block">Famiglia</label>
                               <select className="w-full border p-2.5 rounded-lg text-slate-700 bg-white" value={userForm.familyId} onChange={e => setUserForm({...userForm, familyId: e.target.value})}>
                                  <option value="">Nessuna</option>
                                  {families.map(f => <option key={f.id} value={f.id}>{f.name}</option>)}
                               </select>
                           </div>
                      </div>

                      <div className="flex items-center gap-2">
                          <input type="checkbox" checked={userForm.receiveAlerts} onChange={e => setUserForm({...userForm, receiveAlerts: e.target.checked})} className="w-4 h-4 text-blue-600"/>
                          <span className="text-sm font-medium text-slate-700">Ricevi avvisi email</span>
                      </div>

                      <div className="flex gap-2 pt-2">
                          <button type="button" onClick={() => setShowUserModal(false)} className="flex-1 border p-2.5 rounded-lg text-slate-600 hover:bg-slate-50">Annulla</button>
                          <button type="submit" className="flex-1 bg-blue-600 text-white p-2.5 rounded-lg hover:bg-blue-700">Salva</button>
                      </div>
                  </form>
              </div>
          </div>
      )}
    </div>
  );
};