import 'package:flutter/material.dart';
import 'package:get/get.dart';

import '../controller/home_controller.dart';
import '../models/kauf_filament_model.dart';
import '../theme/app_theme.dart';
import '../widgets/filament_form.dart';
import '../widgets/filament_inventory.dart';
import 'anwendung_view.dart';
import 'bauteil_view.dart';
import 'export_view.dart';

class HomeView extends GetView<HomeController> {
  static const routeName = '/home-view';
  const HomeView({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        toolbarHeight: 80,
        actions: [
          IconButton(
            tooltip: 'Bauteile verwalten',
            icon: const Icon(Icons.view_in_ar_outlined),
            onPressed: () => Get.toNamed(BauteilView.routeName),
          ),
          const SizedBox(width: 8),
        ],
        title: const Row(
          children: [
            Icon(Icons.all_inbox_rounded, color: AppTheme.teal, size: 28),
            SizedBox(width: 12),
            Flexible(
              child: Text(
                'Filamentverwaltung',
                style: TextStyle(fontSize: 21, fontWeight: FontWeight.w700),
              ),
            ),
          ],
        ),
      ),
      drawer: Drawer(
        child: SafeArea(
          child: ListView(
            padding: const EdgeInsets.all(16),
            children: [
              const ListTile(title: Text('Filamentverwaltung')),
              ListTile(
                leading: const Icon(Icons.import_export),
                title: const Text('Daten exportieren / importieren'),
                onTap: () {
                  Navigator.of(context).pop();
                  Get.toNamed(ExportView.routeName);
                },
              ),
            ],
          ),
        ),
      ),
      body: SafeArea(
        top: false,
        child: Align(
          alignment: Alignment.topCenter,
          child: ConstrainedBox(
            constraints: const BoxConstraints(maxWidth: 1320),
            child: LayoutBuilder(
              builder: (context, constraints) {
                final wide = constraints.maxWidth >= 900;
                final form = FilamentForm(controller: controller);
                final inventory = FilamentInventory(
                  controller: controller,
                  onOpen: (filament) => Get.toNamed(
                    '${AnwendungView.routeName}/${Uri.encodeComponent(filament.filamentId)}',
                  ),
                  onAction: (action, filament) =>
                      _handleAction(context, action, filament),
                );
                if (wide) {
                  return Padding(
                    padding: const EdgeInsets.fromLTRB(24, 8, 24, 24),
                    child: Row(
                      crossAxisAlignment: CrossAxisAlignment.start,
                      children: [
                        SizedBox(
                          width: 390,
                          child: SingleChildScrollView(
                            controller: controller.formScrollController,
                            child: form,
                          ),
                        ),
                        const SizedBox(width: 24),
                        Expanded(
                          child: CustomScrollView(
                            controller: controller.pageScrollController,
                            slivers: [inventory],
                          ),
                        ),
                      ],
                    ),
                  );
                }
                return CustomScrollView(
                  controller: controller.pageScrollController,
                  keyboardDismissBehavior:
                      ScrollViewKeyboardDismissBehavior.onDrag,
                  slivers: [
                    SliverPadding(
                      padding: const EdgeInsets.fromLTRB(16, 8, 16, 20),
                      sliver: SliverToBoxAdapter(child: form),
                    ),
                    SliverPadding(
                      padding: const EdgeInsets.fromLTRB(16, 0, 16, 24),
                      sliver: inventory,
                    ),
                  ],
                );
              },
            ),
          ),
        ),
      ),
    );
  }

  Future<void> _handleAction(
    BuildContext context,
    String action,
    KaufFilamentModel filament,
  ) async {
    switch (action) {
      case 'edit':
        await controller.editFilament(filament);
        break;
      case 'duplicate':
        await controller.duplicateFilament(filament);
        break;
      case 'delete':
        final confirmed = await showDialog<bool>(
          context: context,
          builder: (dialogContext) => AlertDialog(
            title: const Text('Filament löschen?'),
            content: Text('${filament.material} – ${filament.farbe} löschen?'),
            actions: [
              TextButton(
                onPressed: () => Navigator.pop(dialogContext, false),
                child: const Text('Abbrechen'),
              ),
              FilledButton(
                onPressed: () => Navigator.pop(dialogContext, true),
                child: const Text('Löschen'),
              ),
            ],
          ),
        );
        if (confirmed == true) {
          await controller.deleteFilament(filament.filamentId);
        }
        break;
    }
  }
}