import { useEffect, useMemo, useRef, useState } from 'react';
import { useWhatsappSocket } from '../../../shared/hooks/useWhatsappSocket';
import { API_BASE_URL } from '../../../shared/services/apiConfig';
import { getAccessOptions, getAccessUsers } from '../../management/services/adminAccessService';
import { getCurrentUser } from '../../auth/services/sessionService';
import { chatContacts, transferAreas as fallbackTransferAreas } from '../services/chatMocks';

function buildInitialMessages() {
  return chatContacts.reduce((acc, contact) => {
    acc[contact.id] = contact.messages;
    return acc;
  }, {});
}

function getLastMessageFromMe(messages = []) {
  const lastMessage = [...messages].reverse().find(isDisplayableMessage);
  if (!lastMessage) return false;
  return lastMessage.sender === 'agent' || lastMessage.fromMe === true;
}

function getSerializedId(value) {
  if (!value) return '';
  if (typeof value === 'string') return value;
  return value._serialized || `${value.user || ''}@${value.server || 'c.us'}`;
}

function formatTime(timestamp) {
  if (!timestamp) return '';
  const date = new Date(timestamp * 1000);
  return date.toLocaleTimeString('pt-BR', { hour: '2-digit', minute: '2-digit' });
}

function getContactName(chat) {
  const serializedId = getSerializedId(chat.id);
  return chat.name || chat.pushname || serializedId.split('@')[0] || 'Contato';
}

function getPreviewFromMessage(message) {
  if (message?.body) return message.body;
  if (message?.text) return message.text;
  if (message?.hasMedia || message?.media) return '[Midia]';
  return '';
}

function normalizeChat(chat) {
  const id = getSerializedId(chat.id);
  const assignment = chat.assignment || null;
  const lastSeenTimestamp = chat.timestamp || null;
  const hasLastMessageFromMe = typeof chat.lastMessageFromMe === 'boolean';

  return {
    id,
    name: getContactName(chat),
    channel: 'WhatsApp',
    status: lastSeenTimestamp ? 'away' : 'offline',
    area: assignment?.area_nome || (assignment?.area_id ? String(assignment.area_id) : 'Sem fila'),
    areaId: assignment?.area_id || null,
    lastSeen: lastSeenTimestamp ? `Última atividade as ${formatTime(lastSeenTimestamp)}` : 'Sem atividade recente',
    preview: chat.preview || chat.lastMessage?.body || '',
    time: formatTime(chat.timestamp) || 'Agora',
    unread: chat.unreadCount || 0,
    lastMessageFromMe: hasLastMessageFromMe ? chat.lastMessageFromMe : Boolean(chat.lastMessage?.fromMe),
    contactProfile: chat.contactProfile || null,
    assignment,
  };
}

function normalizeMessage(message) {
  const id = getSerializedId(message.id) || message.id || `msg-${Date.now()}`;
  const sender = message.sender || (message.fromMe ? 'agent' : 'customer');
  return {
    id,
    chatId: message.from || message.to || message.chatId,
    sender,
    text: message.body ?? message.text ?? '',
    timestamp: message.timestamp,
    hasMedia: Boolean(message.hasMedia || message.media),
    media: message.media || null,
    mediaLoading: false,
    mediaError: null,
  };
}

function isDisplayableMessage(message) {
  const text = String(message?.text ?? message?.body ?? '').trim();
  return Boolean(text || message?.hasMedia || message?.media);
}

function getComparableMessageTime(message) {
  if (message.timestamp) return Number(message.timestamp);
  if (typeof message.id === 'string' && message.id.startsWith('temp-')) {
    return Math.floor(Number(message.id.replace('temp-', '')) / 1000);
  }
  return 0;
}

function stripSenderHeader(text) {
  return String(text || '')
    .replace(/^\*(Atendente(?: virtual)?:\s*[^*]+)\*\s*\n+/i, '')
    .trim();
}

function areLikelySameMessage(currentMessage, nextMessage) {
  if (!currentMessage || !nextMessage) return false;
  if (currentMessage.id && nextMessage.id && currentMessage.id === nextMessage.id) return true;
  if (currentMessage.chatId && nextMessage.chatId && currentMessage.chatId !== nextMessage.chatId) return false;
  if (currentMessage.sender !== nextMessage.sender) return false;
  if (stripSenderHeader(currentMessage.text) !== stripSenderHeader(nextMessage.text)) return false;
  if (Boolean(currentMessage.hasMedia) !== Boolean(nextMessage.hasMedia)) return false;

  const currentTime = getComparableMessageTime(currentMessage);
  const nextTime = getComparableMessageTime(nextMessage);
  if (!currentTime || !nextTime) return false;

  return Math.abs(currentTime - nextTime) <= 10;
}

function mergeMessageList(currentMessages, nextMessage) {
  const exactIndex = currentMessages.findIndex((message) => message.id === nextMessage.id);
  if (exactIndex >= 0) {
    return currentMessages.map((message, index) => (index === exactIndex ? { ...message, ...nextMessage } : message));
  }

  const likelyIndex = currentMessages.findIndex((message) => areLikelySameMessage(message, nextMessage));
  if (likelyIndex >= 0) {
    return currentMessages.map((message, index) => (index === likelyIndex ? { ...message, ...nextMessage } : message));
  }

  return [...currentMessages, nextMessage];
}

function dedupeMessages(messages) {
  return messages.reduce((acc, message) => mergeMessageList(acc, message), []);
}

function fileToBase64(file) {
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.onload = () => {
      const result = String(reader.result || '');
      resolve(result.includes(',') ? result.split(',')[1] : result);
    };
    reader.onerror = reject;
    reader.readAsDataURL(file);
  });
}

function buildFallbackContacts() {
  return chatContacts.map((contact) => ({
    ...contact,
    assignment: null,
    areaId: null,
    lastMessageFromMe: getLastMessageFromMe(contact.messages),
  }));
}

function normalizeComparableContact(contact) {
  return {
    id: contact.id,
    name: contact.name,
    preview: contact.preview,
    time: contact.time,
    unread: contact.unread,
    area: contact.area,
    areaId: contact.areaId,
    lastSeen: contact.lastSeen,
    lastMessageFromMe: contact.lastMessageFromMe,
    assignmentStatus: contact.assignment?.status || null,
    assignmentUserId: contact.assignment?.user_id || null,
    assignmentAreaId: contact.assignment?.area_id || null,
    transferNote: contact.assignment?.transfer_note || null,
    awaitingCustomerReply: contact.assignment?.awaiting_customer_reply || false,
    contactName: contact.contactProfile?.name || null,
    contactCompany: contact.contactProfile?.company || null,
    contactNote: contact.contactProfile?.note || null,
    contactPhone: contact.contactProfile?.phone || null,
  };
}

function areContactListsEqual(currentContacts, nextContacts) {
  if (currentContacts.length !== nextContacts.length) return false;
  return currentContacts.every((contact, index) => {
    const currentComparable = normalizeComparableContact(contact);
    const nextComparable = normalizeComparableContact(nextContacts[index]);
    return JSON.stringify(currentComparable) === JSON.stringify(nextComparable);
  });
}

function getUserId(user) {
  const value = user?.databaseId || user?.id;
  const numeric = Number(value);
  return Number.isFinite(numeric) ? numeric : null;
}

function getUserAreas(user) {
  const normalizeArea = (area) => {
    if (!area) return null;
    if (typeof area === 'string') return area;
    return area.nome || area.name || null;
  };
  const areas = (Array.isArray(user?.areas) ? user.areas : []).map(normalizeArea).filter(Boolean);
  const primaryArea = normalizeArea(user?.areaPrincipal);
  if (primaryArea && !areas.includes(primaryArea)) {
    return [primaryArea, ...areas];
  }
  return areas;
}

function getUserDisplayName(user) {
  return user?.name || user?.nome || user?.username || user?.email || 'Atendente';
}

export function useChat() {
  const currentUser = getCurrentUser();
  const currentUserId = getUserId(currentUser);
  const currentUserAreas = getUserAreas(currentUser);
  const { status: whatsappStatus, incomingMessage, clearIncomingMessage } = useWhatsappSocket();
  const [contacts, setContacts] = useState(buildFallbackContacts);
  const [activeContactId, setActiveContactId] = useState(chatContacts[0].id);
  const [messagesByContact, setMessagesByContact] = useState(buildInitialMessages);
  const [draft, setDraft] = useState('');
  const [attachedFile, setAttachedFile] = useState(null);
  const [areaOptions, setAreaOptions] = useState([]);
  const [accessUsers, setAccessUsers] = useState([]);
  const [selectedArea, setSelectedArea] = useState(chatContacts[0].area);
  const [isTransferOpen, setIsTransferOpen] = useState(false);
  const [transferArea, setTransferArea] = useState(currentUserAreas[0] || 'Suporte');
  const [transferAttendant, setTransferAttendant] = useState('');
  const [transferNote, setTransferNote] = useState('');
  const [isReplying] = useState(false);
  const [isLoadingChats, setIsLoadingChats] = useState(false);
  const [isLoadingMessages, setIsLoadingMessages] = useState(false);
  const [apiError, setApiError] = useState(null);
  const activeContactRef = useRef(activeContactId);
  const contactsRef = useRef(contacts);

  const activeContact = useMemo(
    () => {
      const contact = contacts.find((item) => item.id === activeContactId) || contacts[0];
      if (!contact || typeof contact.lastMessageFromMe === 'boolean') return contact;
      return {
        ...contact,
        lastMessageFromMe: getLastMessageFromMe(messagesByContact[contact.id] || []),
      };
    },
    [contacts, activeContactId, messagesByContact],
  );

  const messages = messagesByContact[activeContactId] || [];
  const transferAreas = areaOptions.length ? areaOptions.map((area) => area.nome) : fallbackTransferAreas;
  const selectedTransferArea = areaOptions.find((area) => area.nome === transferArea) || null;
  const usersInTransferArea = accessUsers.filter((user) =>
    user.areas?.some((area) => area.nome === transferArea) || user.areaPrincipal?.nome === transferArea,
  );
  const isSameUserArea = currentUserAreas.includes(transferArea);
  const attendants = isSameUserArea ? usersInTransferArea : [];
  const activeAssignment = activeContact?.assignment || null;
  const isAssignedToCurrentUser = Boolean(
    activeAssignment?.user_id && currentUserId && Number(activeAssignment.user_id) === currentUserId,
  );
  const isWaitingCustomerReply = Boolean(activeAssignment?.awaiting_customer_reply);
  const isQueuedForUserArea = Boolean(
    activeAssignment?.status === 'queued' &&
      (!activeAssignment.area_nome || currentUserAreas.includes(activeAssignment.area_nome)),
  );
  const canAssumeChat = Boolean(activeContact?.id?.includes('@') && currentUserId && isQueuedForUserArea);
  const canReply = Boolean(isAssignedToCurrentUser && !isWaitingCustomerReply);
  const assignmentLabel = activeAssignment?.user_id
    ? isWaitingCustomerReply
      ? 'Aguardando resposta do cliente para liberar novas mensagens'
      : `Atendimento com ${activeAssignment.user_nome || 'outro atendente'}`
    : activeAssignment?.area_nome
      ? `Na fila de ${activeAssignment.area_nome}`
      : 'Sem fila definida';
  const transferNoteLabel = activeAssignment?.transfer_note || '';

  useEffect(() => {
    setSelectedArea(activeContact?.area || 'Sem fila');
  }, [activeContact]);

  useEffect(() => {
    setTransferAttendant(attendants[0]?.id ? String(attendants[0].id) : '');
  }, [transferArea, accessUsers]);

  useEffect(() => {
    activeContactRef.current = activeContactId;
  }, [activeContactId]);

  useEffect(() => {
    contactsRef.current = contacts;
  }, [contacts]);

  useEffect(() => {
    let isMounted = true;

    async function loadAccessData() {
      try {
        const [options, users] = await Promise.all([getAccessOptions(), getAccessUsers()]);
        if (!isMounted) return;
        setAreaOptions(options.areas || []);
        setAccessUsers(users || []);
      } catch {
        if (isMounted) {
          setAreaOptions([]);
          setAccessUsers([]);
        }
      }
    }

    loadAccessData();
    return () => {
      isMounted = false;
    };
  }, []);

  function canSeeContact(contact) {
    if (!currentUserAreas.length) return false;
    if (!contact.assignment) return false;
    if (contact.assignment.status === 'bot_triage') return false;
    if (!contact.assignment.area_nome) return false;
    if (contact.assignment.user_id && Number(contact.assignment.user_id) === currentUserId) return true;
    return currentUserAreas.includes(contact.assignment.area_nome);
  }

  async function loadChats({ showLoading = false } = {}) {
    if (whatsappStatus !== 'CONNECTED') {
      const fallbackContacts = buildFallbackContacts();
      setContacts((current) => (areContactListsEqual(current, fallbackContacts) ? current : fallbackContacts));
      setActiveContactId((current) =>
        fallbackContacts.some((contact) => contact.id === current) ? current : fallbackContacts[0]?.id,
      );
      setIsLoadingChats(false);
      return;
    }

    if (showLoading) {
      setIsLoadingChats(true);
    }
    try {
      const response = await fetch(`${API_BASE_URL}/whatsapp/chats`);
      if (!response.ok) throw new Error('Falha ao carregar chats do WhatsApp.');
      const data = await response.json();
      if (!Array.isArray(data)) return;

      const nextContacts = data.map(normalizeChat).filter(canSeeContact);
      setContacts((current) => (areContactListsEqual(current, nextContacts) ? current : nextContacts));
      setActiveContactId((current) =>
        nextContacts.some((contact) => contact.id === current) ? current : nextContacts[0]?.id || '',
      );
      setApiError(null);
    } catch (error) {
      setApiError(error.message);
    } finally {
      setIsLoadingChats(false);
    }
  }

  useEffect(() => {
    let isMounted = true;

    async function guardedLoadChats() {
      if (!isMounted) return;
      await loadChats({ showLoading: contactsRef.current.length === 0 });
    }

    guardedLoadChats();
    const intervalId = window.setInterval(guardedLoadChats, 30000);
    return () => {
      isMounted = false;
      window.clearInterval(intervalId);
    };
  }, [currentUserId, currentUserAreas.join('|'), whatsappStatus]);

  useEffect(() => {
    if (!activeContactId) return;
    let isMounted = true;

    async function loadMessages() {
      if (!activeContactId.includes('@')) return;
      setIsLoadingMessages(true);
      try {
        const response = await fetch(`${API_BASE_URL}/whatsapp/messages/${encodeURIComponent(activeContactId)}`);
        if (!response.ok) throw new Error('Falha ao carregar mensagens do WhatsApp.');
        const data = await response.json();
        if (!isMounted || !Array.isArray(data)) return;
        const normalizedMessages = dedupeMessages(
          data
            .map((message) => ({
              ...normalizeMessage(message),
              chatId: activeContactId,
            }))
            .filter(isDisplayableMessage),
        );
        setMessagesByContact((current) => ({
          ...current,
          [activeContactId]: normalizedMessages,
        }));
        updateContact(activeContactId, (contact) => ({
          ...contact,
          lastMessageFromMe: getLastMessageFromMe(normalizedMessages),
        }));
        setApiError(null);
      } catch (error) {
        if (isMounted) setApiError(error.message);
      } finally {
        if (isMounted) setIsLoadingMessages(false);
      }
    }

    loadMessages();
    return () => {
      isMounted = false;
    };
  }, [activeContactId]);

  useEffect(() => {
    if (!incomingMessage) return;
    const contactId = incomingMessage.from || incomingMessage.to || incomingMessage.chatId;
    if (!contactId) return;

    const message = {
      ...normalizeMessage(incomingMessage),
      chatId: contactId,
    };
    if (!isDisplayableMessage(message)) {
      clearIncomingMessage();
      return;
    }
    const preview = getPreviewFromMessage(message);

    setMessagesByContact((current) => {
      const currentMessages = current[contactId] || [];
      const nextMessages = mergeMessageList(currentMessages, message);
      if (nextMessages === currentMessages) return current;
      return {
        ...current,
        [contactId]: nextMessages,
      };
    });

    setContacts((current) => {
      const existing = current.find((contact) => contact.id === contactId);
      if (!existing) {
        return current;
      }
      const nextContact = {
        ...(existing || {
          id: contactId,
          name: incomingMessage.notifyName || contactId.split('@')[0],
          channel: 'WhatsApp',
          status: 'away',
          area: 'Sem fila',
          lastSeen: 'Visto agora',
          unread: 0,
          assignment: null,
        }),
        preview,
        time: 'Agora',
        status: 'away',
        lastSeen: 'Última atividade agora',
        lastMessageFromMe: Boolean(incomingMessage.fromMe),
        unread:
          incomingMessage.fromMe || contactId === activeContactRef.current
            ? 0
            : (existing?.unread || 0) + 1,
      };
      return [nextContact, ...current.filter((contact) => contact.id !== contactId)];
    });

    clearIncomingMessage();
    window.setTimeout(() => loadChats({ showLoading: false }), 1200);
  }, [incomingMessage, clearIncomingMessage]);

  function updateContact(contactId, updater) {
    setContacts((current) =>
      current.map((contact) => (contact.id === contactId ? updater(contact) : contact)),
    );
  }

  function updateContactPreview(contactId, preview, media) {
    updateContact(contactId, (contact) => ({
      ...contact,
      preview: media ? `[Midia: ${media.filename || 'Arquivo'}]` : preview,
      time: 'Agora',
      unread: 0,
      lastMessageFromMe: true,
    }));
  }

  function updateContactProfile(contactId, profile) {
    updateContact(contactId, (contact) => ({
      ...contact,
      name: profile.name || contact.name,
      contactProfile: profile,
    }));
  }

  async function attachFile(file) {
    if (!file) return;
    const data = await fileToBase64(file);
    setAttachedFile({
      name: file.name,
      type: file.type || 'application/octet-stream',
      data,
    });
  }

  function removeAttachedFile() {
    setAttachedFile(null);
  }

  async function hydrateMessageMedia(contactId, messageId) {
    if (!contactId || !messageId) return;

    setMessagesByContact((current) => ({
      ...current,
      [contactId]: (current[contactId] || []).map((message) =>
        message.id === messageId ? { ...message, mediaLoading: true, mediaError: null } : message,
      ),
    }));

    try {
      const response = await fetch(
        `${API_BASE_URL}/whatsapp/media/${encodeURIComponent(contactId)}/${encodeURIComponent(messageId)}`,
      );
      if (!response.ok) throw new Error('Falha ao carregar midia.');
      const media = await response.json();
      setMessagesByContact((current) => ({
        ...current,
        [contactId]: (current[contactId] || []).map((message) =>
          message.id === messageId ? { ...message, media, mediaLoading: false } : message,
        ),
      }));
    } catch (error) {
      setMessagesByContact((current) => ({
        ...current,
        [contactId]: (current[contactId] || []).map((message) =>
          message.id === messageId
            ? { ...message, mediaLoading: false, mediaError: error.message || 'Erro ao carregar midia.' }
            : message,
        ),
      }));
    }
  }

  async function assumeChat(contactId = activeContactId) {
    if (!contactId?.includes('@') || !currentUserId) return null;
    const targetContact = contacts.find((contact) => contact.id === contactId) || activeContact;
    const targetAssignment = targetContact?.assignment || null;
    const areaId = targetContact?.areaId || targetAssignment?.area_id || areaOptions.find((area) => currentUserAreas.includes(area.nome))?.id;
    try {
      const response = await fetch(`${API_BASE_URL}/whatsapp/assign`, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          chatId: contactId,
          userId: String(currentUserId),
          areaId,
        }),
      });

      if (!response.ok) throw new Error('Nao foi possivel assumir o atendimento.');
      const assignment = await response.json();
      updateContact(contactId, (contact) => ({
        ...contact,
        assignment,
        area: assignment.area_nome || contact.area,
        areaId: assignment.area_id || contact.areaId,
      }));
      setApiError(null);
      return assignment;
    } catch (error) {
      setApiError(error.message);
      return null;
    }
  }

  async function releaseChat() {
    if (!activeContactId?.includes('@')) return;
    const response = await fetch(`${API_BASE_URL}/whatsapp/release/${encodeURIComponent(activeContactId)}`, {
      method: 'DELETE',
    });

    if (!response.ok) throw new Error('Nao foi possivel sair do atendimento.');
    const assignment = await response.json();
    updateContact(activeContactId, (contact) => ({
      ...contact,
      assignment,
      area: assignment?.area_nome || contact.area,
      areaId: assignment?.area_id || contact.areaId,
    }));
  }

  async function sendMessage(messageText = draft, contactId = activeContactId) {
    const trimmed = String(messageText || '').trim();
    if (!trimmed && !attachedFile) return;

    const targetContact = contacts.find((contact) => contact.id === contactId) || activeContact;
    const targetAssignment = targetContact?.assignment || null;
    const targetIsAssignedToCurrentUser = Boolean(
      targetAssignment?.user_id && currentUserId && Number(targetAssignment.user_id) === currentUserId,
    );
    const targetIsWaitingCustomerReply = Boolean(targetAssignment?.awaiting_customer_reply);
    try {
      if (!targetIsAssignedToCurrentUser) {
        setApiError('Assuma o atendimento antes de responder.');
        return;
      }
      if (targetIsWaitingCustomerReply) {
        setApiError('Aguarde o cliente responder antes de enviar novas mensagens.');
        return;
      }
    } catch (error) {
      setApiError(error.message);
      return;
    }

    const media = attachedFile
      ? {
          data: attachedFile.data,
          mimetype: attachedFile.type,
          filename: attachedFile.name,
        }
      : null;
    const newMessage = {
      id: `temp-${Date.now()}`,
      chatId: contactId,
      sender: 'agent',
      text: trimmed,
      timestamp: Math.floor(Date.now() / 1000),
      hasMedia: Boolean(media),
      media,
    };

    setMessagesByContact((current) => ({
      ...current,
      [contactId]: mergeMessageList(current[contactId] || [], newMessage),
    }));
    updateContactPreview(contactId, trimmed || '[Midia]', media);
    if (contactId === activeContactId) {
      setDraft('');
    }
    setAttachedFile(null);

    if (!contactId.includes('@')) return;

    try {
      await fetch(`${API_BASE_URL}/whatsapp/send`, {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({
          to: contactId,
          message: trimmed,
          senderName: getUserDisplayName(currentUser),
          media,
        }),
      });
      setApiError(null);
      updateContact(contactId, (contact) => ({
        ...contact,
        assignment: contact.assignment
          ? { ...contact.assignment, transfer_note: null }
          : contact.assignment,
      }));
    } catch (error) {
      setApiError(error.message);
    }
  }

  async function submitTransfer() {
    const note = transferNote.trim();
    const areaId = selectedTransferArea?.id;

    if (!areaId) {
      setApiError('Selecione uma area valida para transferencia.');
      return;
    }

    if (!isAssignedToCurrentUser) {
      setApiError('Assuma o atendimento antes de transferir.');
      return;
    }

    const targetUserId = isSameUserArea && transferAttendant ? Number(transferAttendant) : null;
    const response = await fetch(`${API_BASE_URL}/whatsapp/transfer`, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({
        chatId: activeContactId,
        areaId,
        userId: targetUserId,
        note,
      }),
    });

    if (!response.ok) {
      setApiError('Nao foi possivel transferir o atendimento.');
      return;
    }

    const assignment = await response.json();
    const transferMessage = targetUserId
      ? `Transferencia solicitada para ${transferArea}. Obs: ${note || 'Sem observacao.'}`
      : `Transferencia enviada para a fila de ${transferArea}. Obs: ${note || 'Sem observacao.'}`;

    setMessagesByContact((current) => ({
      ...current,
      [activeContactId]: [
        ...(current[activeContactId] || []),
        { id: Date.now() + 2, sender: 'system', text: transferMessage },
      ],
    }));

    updateContact(activeContactId, (contact) => ({
      ...contact,
      area: assignment.area_nome || transferArea,
      areaId: assignment.area_id || areaId,
      assignment,
    }));
    setSelectedArea(transferArea);
    setIsTransferOpen(false);
    setTransferNote('');
    setApiError(null);
  }

  return {
    contacts,
    activeContact,
    activeContactId,
    setActiveContactId,
    messages,
    draft,
    setDraft,
    attachedFile,
    attachFile,
    removeAttachedFile,
    sendMessage,
    hydrateMessageMedia,
    assumeChat,
    releaseChat,
    canAssumeChat,
    canReply,
    assignmentLabel,
    transferNoteLabel,
    isAssignedToCurrentUser,
    activeAssignment,
    updateContactProfile,
    isReplying,
    isLoadingChats,
    isLoadingMessages,
    apiError,
    selectedArea,
    setSelectedArea,
    isTransferOpen,
    setIsTransferOpen,
    transferArea,
    setTransferArea,
    transferAreas,
    attendants,
    isSameUserArea,
    transferAttendant,
    setTransferAttendant,
    transferNote,
    setTransferNote,
    submitTransfer,
  };
}