import 'package:flutter/material.dart';
import 'package:flutter_contacts/flutter_contacts.dart';
import 'contact_service.dart';

class ContactState extends StatefulWidget {
  final Widget child;

  const ContactState({super.key, required this.child});

  static _ContactStateState of(BuildContext context) {
    return context.dependOnInheritedWidgetOfExactType<_InheritedContactState>()!.data;
  }

  @override
  _ContactStateState createState() => _ContactStateState();
}

class _ContactStateState extends State<ContactState> {
  final ContactService _contactService = ContactService();
  List<Contact> _contacts = [];
  bool _loading = true;
  double _scrollOffset = 0.0;

  List<Contact> get contacts => _contacts;
  bool get loading => _loading;
  double get scrollOffset => _scrollOffset;

  @override
  void initState() {
    super.initState();
    _fetchContacts();
  }

  Future<void> _fetchContacts() async {
    List<Contact> contacts = await _contactService.fetchContacts();
    contacts = contacts.where((contact) => contact.phones.isNotEmpty).toList();
    contacts.sort((a, b) => a.displayName.compareTo(b.displayName));
    // contacts.sort((a, b) {
      // String aName = a.displayName.isNotEmpty ? a.displayName : '􏿿';
      // String bName = b.displayName.isNotEmpty ? b.displayName : '􏿿';
      // return aName.compareTo(bName);
    // });
    setState(() {
      _contacts = contacts;
      _loading = false;
    });
  }


  Future<void> addNewContact(Contact contact) async {
    await _contactService.addNewContact(contact);
    await _fetchContacts();
  }

  void setScrollOffset(double offset) {
    setState(() {
      _scrollOffset = offset;
    });
  }

  @override
  Widget build(BuildContext context) {
    return _InheritedContactState(
      data: this,
      child: widget.child,
    );
  }
}

class _InheritedContactState extends InheritedWidget {
  final _ContactStateState data;

  const _InheritedContactState({required this.data, required super.child});

  @override
  bool updateShouldNotify(_InheritedContactState oldWidget) => true;
}