import 'package:firebase_messaging/firebase_messaging.dart';
import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';

class AgentNavigation extends StatefulWidget {
  const AgentNavigation({super.key, required this.router});

  final GoRouter router;

  static const items = [
    NavigationDestination(
      icon: Icon(Icons.home),
      label: 'Dashboard',
    ),
    NavigationDestination(
      icon: Icon(Icons.notifications),
      label: 'Notifications',
    ),
    NavigationDestination(
      icon: Icon(Icons.account_circle),
      label: 'Account',
    )
  ];

  static const destinations = ["/", "/notifications", "/account"];

  @override
  State<AgentNavigation> createState() => _AgentNavigationState();
}

class _AgentNavigationState extends State<AgentNavigation> {
  int _selected = 0;

  Future<void> initMessage(BuildContext context) async {
    void navigate() {
      widget.router.replace("/notifications");
      setState(() {
        _selected = 1;
      });
    }

    RemoteMessage? initialMessage =
    await FirebaseMessaging.instance.getInitialMessage();

    if (initialMessage != null) {
      navigate();
    }

    FirebaseMessaging.onMessageOpenedApp.listen((event) {
      navigate();
    });
  }

  @override
  void initState() {
    super.initState();
    initMessage(context);
  }

  @override
  Widget build(BuildContext context) {
    return NavigationBar(
      selectedIndex: _selected,
      labelBehavior: NavigationDestinationLabelBehavior.onlyShowSelected,
      destinations: AgentNavigation.items,
      onDestinationSelected: (index) {
        widget.router.replace(AgentNavigation.destinations[index]);
        setState(() {
          _selected = index;
        });
      },
    );
  }
}