TKK_E32230211/lib/app/modules/navbar/views/navbar_view.dart

// lib/app/modules/navbar/views/navbar_view.dart
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:get/get.dart';
import '../controllers/navbar_controller.dart';
import '../../home/views/home_view.dart';
import '../../history/views/history_view.dart';

class NavbarView extends StatelessWidget {
  const NavbarView({super.key});

  @override
  Widget build(BuildContext context) {
    final controller = Get.find<NavbarController>();

    return Scaffold(
      backgroundColor: Colors.white,
      body: Obx(
        () => IndexedStack(
          index: controller.selectedIndex.value,
          children: const [HomeView(), HistoryView()],
        ),
      ),
      bottomNavigationBar: SafeArea(
        child: Container(
          margin: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
          height: 70,
          child: Stack(
            clipBehavior: Clip.none,
            alignment: Alignment.center,
            children: [
              // Navbar bar
              Container(
                height: 70,
                decoration: BoxDecoration(
                  color: Colors.white,
                  borderRadius: BorderRadius.circular(22),
                  boxShadow: [
                    BoxShadow(
                      color: Colors.black.withOpacity(0.08),
                      blurRadius: 16,
                      offset: const Offset(0, 4),
                    ),
                  ],
                ),
                child: Row(
                  children: [
                    Expanded(
                      child: Obx(
                        () => _NavItem(
                          icon: Icons.home_rounded,
                          label: 'Home',
                          active: controller.selectedIndex.value == 0,
                          onTap: () {
                            HapticFeedback.lightImpact();
                            controller.changeTabIndex(0);
                          },
                        ),
                      ),
                    ),
                    const SizedBox(width: 76),
                    Expanded(
                      child: Obx(
                        () => _NavItem(
                          icon: Icons.receipt_long_rounded,
                          label: 'Riwayat',
                          active: controller.selectedIndex.value == 1,
                          onTap: () {
                            HapticFeedback.lightImpact();
                            controller.changeTabIndex(1);
                          },
                        ),
                      ),
                    ),
                  ],
                ),
              ),

              // Tombol tengah — posisi sedikit naik dari navbar
              Positioned(
                top: -18, // naik 18px dari tengah navbar, tidak terlalu tinggi
                child: const _CoinSlotButton(),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

class _NavItem extends StatelessWidget {
  final IconData icon;
  final String label;
  final bool active;
  final VoidCallback onTap;

  const _NavItem({
    required this.icon,
    required this.label,
    required this.active,
    required this.onTap,
  });

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: onTap,
      behavior: HitTestBehavior.opaque,
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Icon(
            icon,
            size: 26,
            color: active ? const Color(0xFF5B9BD5) : const Color(0xFFBDCFE0),
          ),
          const SizedBox(height: 3),
          Text(
            label,
            style: TextStyle(
              color: active ? const Color(0xFF5B9BD5) : const Color(0xFFBDCFE0),
              fontSize: 10,
              fontWeight: active ? FontWeight.w700 : FontWeight.w400,
            ),
          ),
        ],
      ),
    );
  }
}

class _CoinSlotButton extends StatefulWidget {
  const _CoinSlotButton();

  @override
  State<_CoinSlotButton> createState() => _CoinSlotButtonState();
}

class _CoinSlotButtonState extends State<_CoinSlotButton>
    with SingleTickerProviderStateMixin {
  late AnimationController _pressCtrl;
  late Animation<double> _scaleAnim;
  final NavbarController controller = Get.find<NavbarController>();

  @override
  void initState() {
    super.initState();
    _pressCtrl = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 100),
    );
    _scaleAnim = Tween<double>(
      begin: 1.0,
      end: 0.92,
    ).animate(CurvedAnimation(parent: _pressCtrl, curve: Curves.easeOut));
  }

  @override
  void dispose() {
    _pressCtrl.dispose();
    super.dispose();
  }

  void _handleTap() async {
    HapticFeedback.mediumImpact();
    await _pressCtrl.forward();
    _pressCtrl.reverse();
    controller.toggleIot();
  }

  @override
  Widget build(BuildContext context) {
    return Obx(() {
      final isOn = controller.isIotActive.value;
      return AnimatedBuilder(
        animation: _scaleAnim,
        builder: (_, __) => Transform.scale(
          scale: _scaleAnim.value,
          child: GestureDetector(
            onTap: _handleTap,
            child: Container(
              width: 62,
              height: 62,
              decoration: BoxDecoration(
                shape: BoxShape.circle,
                color: isOn ? const Color(0xFFE57373) : const Color(0xFF5B9BD5),
                border: Border.all(color: Colors.white, width: 3),
                boxShadow: [
                  BoxShadow(
                    color:
                        (isOn
                                ? const Color(0xFFE57373)
                                : const Color(0xFF5B9BD5))
                            .withOpacity(0.35),
                    blurRadius: 12,
                    offset: const Offset(0, 4),
                  ),
                ],
              ),
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  AnimatedSwitcher(
                    duration: const Duration(milliseconds: 300),
                    transitionBuilder: (child, anim) =>
                        ScaleTransition(scale: anim, child: child),
                    child: Icon(
                      isOn ? Icons.move_to_inbox_rounded : Icons.inventory_2,
                      key: ValueKey(isOn),
                      color: Colors.white,
                      size: 26,
                    ),
                  ),
                  const SizedBox(height: 2),
                  Text(
                    isOn ? 'TUTUP' : 'BUKA',
                    style: const TextStyle(
                      color: Colors.white,
                      fontSize: 7,
                      fontWeight: FontWeight.w800,
                      letterSpacing: 1.0,
                    ),
                  ),
                ],
              ),
            ),
          ),
        ),
      );
    });
  }
}