import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:rasadyar_core/core.dart';

import 'logic.dart';

class RootPage extends GetView<RootLogic> {
  RootPage({super.key});

  DateTime? _lastBackPressed;

  @override
  Widget build(BuildContext context) {
    return ObxValue((currentIndex) {
      return PopScope(
        canPop: false,
        onPopInvokedWithResult: (didPop, result) async {
          final nestedKey = Get.nestedKey(controller.currentIndex.value);
          final currentNavigator = nestedKey?.currentState;

          if (currentNavigator?.canPop() ?? false) {
            currentNavigator?.pop();
          } else {
            final now = DateTime.now();
            if (_lastBackPressed == null ||
                now.difference(_lastBackPressed!) > Duration(seconds: 2)) {
              _lastBackPressed = now;
              Get.snackbar(
                'خروج از برنامه',
                'برای خروج دوباره بازگشت را بزنید',
                snackPosition: SnackPosition.TOP,
                duration: Duration(seconds: 2),
                backgroundColor: AppColor.warning,
              );
            } else {
              await SystemNavigator.pop();
            }
          }
        },

        child: Scaffold(
          body: IndexedStack(
            children: [...controller.pages],
            index: currentIndex.value,
            sizing: StackFit.expand,
          ),

          bottomNavigationBar: RBottomNavigation(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            items: [
              RBottomNavigationItem(
                label: 'نقشه',
                icon: Assets.vec.mapSvg.path,
                isSelected: currentIndex.value == 0,
                onTap: () {
                  Get.nestedKey(1)?.currentState?.popUntil((route) => route.isFirst);
                  controller.changePage(0);
                },
              ),
              RBottomNavigationItem(
                label: 'درخواست‌ها',
                icon: Assets.vec.settingSvg.path,
                isSelected: currentIndex.value == 1,
                onTap: () {
                  Get.nestedKey(0)?.currentState?.popUntil((route) => route.isFirst);
                  controller.changePage(1);
                },
              ),

              RBottomNavigationItem(
                label: 'پروفایل',
                icon: Assets.vec.profileCircleSvg.path,
                isSelected: currentIndex.value == 2,
                onTap: () {
                  Get.nestedKey(1)?.currentState?.popUntil((route) => route.isFirst);
                  Get.nestedKey(0)?.currentState?.popUntil((route) => route.isFirst);

                  controller.changePage(2);
                },
              ),
            ],
          ),
        ),
      );
    }, controller.currentIndex);
  }
}