contact_cubit.dart

import 'package:hydrated_bloc/hydrated_bloc.dart';

import 'contact.dart';
import 'contact_state.dart';

class ContactsCubit extends HydratedCubit<ContactsState> {
  ContactsCubit() : super(const ContactsState());

  Contact? _find(Contact contact) {
    try {
      return state.contacts
          .firstWhere((Contact c) => c.pubKey == contact.pubKey);
    } catch (e) {
      return null;
    }
  }

  void addContact(Contact contact) {
    final Contact? nFound = _find(contact);
    if (nFound == null) {
      emit(state.copyWith(contacts: <Contact>[...state.contacts, contact]));
    }
  }

  void removeContact(Contact contact) {
    final List<Contact> contactsTruncated = state.contacts
        .where((Contact c) => c.pubKey != contact.pubKey)
        .toList();
    final List<Contact> filteredContactsTruncated = state.filteredContacts
        .where((Contact c) => c.pubKey != contact.pubKey)
        .toList();
    emit(state.copyWith(
        contacts: contactsTruncated,
        filteredContacts: filteredContactsTruncated));
  }

  void updateContact(Contact contact) {
    final List<Contact> contacts = state.contacts.map((Contact c) {
      if (c.pubKey == contact.pubKey) {
        return contact;
      }
      return c;
    }).toList();
    emit(state.copyWith(contacts: contacts));
  }

  void resetFilter() {
    emit(state.copyWith(filteredContacts: state.contacts));
  }

  void filterContacts(String query) {
    final List<Contact> contacts = state.contacts.where((Contact c) {
      if (c.pubKey.contains(query)) {
        return true;
      }
      if (c.nick != null && c.nick!.contains(query)) {
        return true;
      }
      if (c.name != null && c.name!.contains(query)) {
        return true;
      }
      if (c.notes != null && c.notes!.contains(query)) {
        return true;
      }
      return false;
    }).toList();
    emit(state.copyWith(filteredContacts: contacts));
  }

  List<Contact> get contacts => state.contacts;