import 'package:dialer/services/obfuscate_service.dart';
import 'package:flutter/material.dart';
import 'package:dialer/features/contacts/contact_page.dart';
import 'package:dialer/features/favorites/favorites_page.dart';
import 'package:dialer/features/history/history_page.dart';
import 'package:dialer/features/composition/composition.dart';
import 'package:flutter_contacts/flutter_contacts.dart';
import 'package:dialer/features/settings/settings.dart';
import '../../services/contact_service.dart';
import 'package:dialer/features/voicemail/voicemail_page.dart';
import '../contacts/widgets/contact_modal.dart';


class _MyHomePageState extends State<MyHomePage>
    with SingleTickerProviderStateMixin {
  late TabController _tabController;
  List<Contact> _allContacts = [];
  List<Contact> _contactSuggestions = [];
  final ContactService _contactService = ContactService();
  final ObfuscateService _obfuscateService = ObfuscateService();
  final TextEditingController _searchController = TextEditingController();


  @override
  void initState() {
    super.initState();
    // Set the TabController length to 4
    _tabController = TabController(length: 4, vsync: this, initialIndex: 1);
    _tabController.addListener(_handleTabIndex);
    _fetchContacts();
  }

  void _fetchContacts() async {
    _allContacts = await _contactService.fetchContacts();
    setState(() {});
  }

  void _clearSearch() {
    _searchController.clear();
    _onSearchChanged('');
  }

  void _onSearchChanged(String query) {
    setState(() {
      if (query.isEmpty) {
        _contactSuggestions = List.from(_allContacts); // Reset suggestions
      } else {
        _contactSuggestions = _allContacts.where((contact) {
          return contact.displayName
              .toLowerCase()
              .contains(query.toLowerCase());
        }).toList();
      }
    });
  }

  @override
  void dispose() {
    _searchController.dispose();
    _tabController.removeListener(_handleTabIndex);
    _tabController.dispose();
    super.dispose();
  }

  void _handleTabIndex() {
    setState(() {});
  }

  void _toggleFavorite(Contact contact) async {
    try {
      if (await FlutterContacts.requestPermission()) {
        Contact? fullContact = await FlutterContacts.getContact(contact.id,
            withProperties: true,
            withAccounts: true,
            withPhoto: true,
            withThumbnail: true);

        if (fullContact != null) {
          fullContact.isStarred = !fullContact.isStarred;
          await FlutterContacts.updateContact(fullContact);
          setState(() {
            // Updating the contact list after toggling the favorite
            _fetchContacts();
          });
        }
      } else {
        print("Could not fetch contact details");
      }
    } catch (e) {
      print("Error updating favorite status: $e");
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Failed to update contact favorite status')),
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      body: Column(
        children: [
          // Persistent Search Bar
          Padding(
            padding: const EdgeInsets.only(
              top: 24.0,
              bottom: 10.0,
              left: 16.0,
              right: 16.0,
            ),
            child: Row(
              children: [
                Expanded(
                  child: Container(
                    decoration: BoxDecoration(
                      color: const Color.fromARGB(255, 30, 30, 30),
                      borderRadius: BorderRadius.circular(12.0),
                      border: Border.all(color: Colors.grey.shade800, width: 1),
                    ),
                    child: SearchAnchor(
                      builder:
                          (BuildContext context, SearchController controller) {
                        return GestureDetector(
                          onTap: () {
                            controller.openView(); // Open the search view
                          },
                          child: Container(
                            decoration: BoxDecoration(
                              color: const Color.fromARGB(255, 30, 30, 30),
                              borderRadius: BorderRadius.circular(12.0),
                              border: Border.all(
                                  color: Colors.grey.shade800, width: 1),
                            ),
                            padding: const EdgeInsets.symmetric(
                                vertical: 12.0, horizontal: 16.0),
                            child: Row(
                              children: [
                                const Icon(Icons.search,
                                    color: Colors.grey, size: 24.0),
                                const SizedBox(width: 8.0),
                                Text(
                                  _searchController.text.isEmpty
                                      ? 'Search contacts'
                                      : _searchController.text,
                                  style: const TextStyle(
                                      color: Colors.grey, fontSize: 16.0),
                                ),
                                const Spacer(),
                                if (_searchController.text.isNotEmpty)
                                  GestureDetector(
                                    onTap: _clearSearch,
                                    child: const Icon(
                                      Icons.clear,
                                      color: Colors.grey,
                                      size: 24.0,
                                    ),
                                  ),
                              ],
                            ),
                          ),
                        );
                      },
                      viewOnChanged: (query) {
                        _onSearchChanged(query); // Update immediately
                      },
                      suggestionsBuilder:
                          (BuildContext context, SearchController controller) {
                        return _contactSuggestions.map((contact) {
                          return ListTile(
                            key: ValueKey(contact.id),
                            title: Text(_obfuscateService.obfuscateData(contact.displayName),
                                style: const TextStyle(color: Colors.white)),
                            onTap: () {
                              // Clear the search text input
                              controller.text = '';

                              // Close the search view
                              controller.closeView(contact.displayName);

                              // Show the ContactModal when a contact is tapped
                              showModalBottomSheet(
                                context: context,
                                isScrollControlled: true,
                                backgroundColor: Colors.transparent,
                                builder: (context) {
                                  return ContactModal(
                                    contact: contact,
                                    onEdit: () async {
                                      if (await FlutterContacts
                                          .requestPermission()) {
                                        final updatedContact =
                                            await FlutterContacts
                                                .openExternalEdit(contact.id);
                                        if (updatedContact != null) {
                                          _fetchContacts();
                                          Navigator.of(context).pop();
                                          ScaffoldMessenger.of(context)
                                              .showSnackBar(
                                            SnackBar(
                                              content: Text(
                                                  '${contact.displayName} updated successfully!'),
                                            ),
                                          );
                                        } else {
                                          ScaffoldMessenger.of(context)
                                              .showSnackBar(
                                            SnackBar(
                                              content: Text(
                                                  'Edit canceled or failed.'),
                                            ),
                                          );
                                        }
                                      }
                                    },
                                    onToggleFavorite: () =>
                                        _toggleFavorite(contact),
                                    isFavorite: contact.isStarred,
                                  );
                                },
                              );
                            },
                          );
                        }).toList();
                      },
                    ),
                  ),
                ),
                // 3-dot menu
                PopupMenuButton<String>(
                  icon: const Icon(Icons.more_vert, color: Colors.white),
                  itemBuilder: (BuildContext context) => [
                    const PopupMenuItem<String>(
                      value: 'settings',
                      child: Text('Settings'),
                    ),
                  ],
                  onSelected: (String value) {
                    if (value == 'settings') {
                      Navigator.push(
                        context,
                        MaterialPageRoute(
                            builder: (context) => const SettingsPage()),
                      );
                    }
                  },
                ),
              ],
            ),
          ),
          // Main content with TabBarView
          Expanded(
            child: Stack(
              children: [
                TabBarView(
                  controller: _tabController,
                  children: const [
                    FavoritesPage(),
                    HistoryPage(),
                    ContactPage(),
                    VoicemailPage(),
                  ],
                ),
                Positioned(
                  right: 20,
                  bottom: 20,
                  child: FloatingActionButton(
                    onPressed: () {
                      Navigator.push(
                        context,
                        MaterialPageRoute(
                          builder: (context) => const CompositionPage(),
                        ),
                      );
                    },
                    backgroundColor: Colors.blue,
                    shape: RoundedRectangleBorder(
                      borderRadius: BorderRadius.circular(45),
                    ),
                    child: const Icon(Icons.dialpad, color: Colors.white),
                  ),
                ),
              ],
            ),
          ),
        ],
      ),
      bottomNavigationBar: Container(
        color: Colors.black,
        child: TabBar(
          controller: _tabController,
          tabs: [
            Tab(
                icon: Icon(_tabController.index == 0
                    ? Icons.star
                    : Icons.star_border)),
            Tab(
                icon: Icon(_tabController.index == 1
                    ? Icons.access_time_filled
                    : Icons.access_time_outlined)),
            Tab(
                icon: Icon(_tabController.index == 2
                    ? Icons.contacts
                    : Icons.contacts_outlined)),
            Tab(
              icon: Icon(_tabController.index == 3
                  ? Icons.voicemail
                  : Icons.voicemail_outlined),
            ),
          ],
          labelColor: Colors.white,
          unselectedLabelColor: const Color.fromARGB(255, 158, 158, 158),
          indicatorSize: TabBarIndicatorSize.label,
          indicatorColor: Colors.white,
        ),
      ),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

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