import 'package:barcode_scanner/backend/schema/user/user_struct.dart';
import 'package:barcode_scanner/pages/login/login_page_model.dart';
import 'package:barcode_scanner/pages/operation/reception/reception_page_model.dart';
import 'package:barcode_scanner/router/go_router_builder.dart';
import 'package:barcode_scanner/router/go_secure_router_builder.dart';
import 'package:barcode_scanner/themes/app_theme.dart';
import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';

class DrawerComponent extends ConsumerStatefulWidget {
  const DrawerComponent({
    super.key,
    this.isOperationExpanded = true,
    this.isSettingsExpanded = false,
    this.selectedState = const SelectedDrawerState(
      menuIndex: 0,
      subMenuIndex: 0,
    ),
  });

  final bool isOperationExpanded;
  final bool isSettingsExpanded;
  final SelectedDrawerState selectedState;

  @override
  ConsumerState<DrawerComponent> createState() => _DrawerComponentState();
}

class _DrawerComponentState extends ConsumerState<DrawerComponent> {
  late bool _isOperationExpanded;
  late bool _isSettingsExpanded;

  @override
  void initState() {
    super.initState();
    _isOperationExpanded = widget.isOperationExpanded;
    _isSettingsExpanded = widget.isSettingsExpanded;
  }

  @override
  Widget build(BuildContext context) {
    final selected = widget.selectedState;

    return Drawer(
      backgroundColor: AppTheme.of(context).primaryBackground,
      child: Padding(
        padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 16),
        child: Column(
          children: [
            const SizedBox(height: 50),

            // === Profil utilisateur
            Consumer(
              builder: (context, ref, child) {
                final state = ref.watch(receptionPageModelProvider);
                return ListTile(
                  onTap: () => ProfileRoute().push(context),
                  contentPadding: EdgeInsets.zero,
                  leading: Container(
                    width: 60,
                    height: 60,
                    decoration: BoxDecoration(
                      color: AppTheme.of(context).secondaryBackground,
                      borderRadius: BorderRadius.circular(60),
                    ),
                  ),
                  title: Text(
                    state.user?.fullName ?? '',
                    style: AppTheme.of(context).titleMedium,
                  ),
                  subtitle: Text(
                    state.user?.email ?? '',
                    style: AppTheme.of(context).bodyMedium,
                  ),
                );
              },
            ),

            const Divider(),

            // === Opérations
            _ExpansionTileComponent(
              leadingIcon: Icons.inbox,
              isExpanded: _isOperationExpanded,
              onExpansionChanged: (expanded) =>
                  setState(() => _isOperationExpanded = expanded),
              title: 'Opérations',
              isActive: selected.isSelected(menu: 0),
              children: [
                _ListTile(
                  title: 'Réceptions',
                  isActive: selected.isSelected(menu: 0, sub: 0),
                  leadingIcon: Icons.move_to_inbox,
                  contentPadding: const EdgeInsets.symmetric(horizontal: 40),
                ),
                _ListTile(
                  title: 'Livraisons',
                  isActive: selected.isSelected(menu: 0, sub: 1),
                  leadingIcon: Icons.local_shipping,
                  contentPadding: const EdgeInsets.symmetric(horizontal: 40),
                ),
                _ListTile(
                  title: 'Inventaires',
                  isActive: selected.isSelected(menu: 0, sub: 2),
                  leadingIcon: Icons.inventory,
                  contentPadding: const EdgeInsets.symmetric(horizontal: 40),
                  onTap: () {
                    Navigator.of(context).pop();
                    ProductListRoute().push(context);
                  },
                ),
              ],
            ),

            // === Produits
            _ListTile(
              title: "Produits",
              leadingIcon: Icons.insert_chart,
              trailing: const Icon(Icons.keyboard_arrow_right),
              isActive: selected.isSelected(menu: 1),
              contentPadding: const EdgeInsetsDirectional.symmetric(
                horizontal: 10,
              ),
            ),

            // === Historique
            _ListTile(
              title: "Historiques",
              leadingIcon: Icons.history,
              trailing: const Icon(Icons.keyboard_arrow_right),
              isActive: selected.isSelected(menu: 2),
              contentPadding: const EdgeInsetsDirectional.symmetric(
                horizontal: 10,
              ),
            ),

            // === Paramètres
            _ExpansionTileComponent(
              title: "Paramètres",
              isExpanded: _isSettingsExpanded,
              onExpansionChanged: (expanded) =>
                  setState(() => _isSettingsExpanded = expanded),
              isActive: selected.isSelected(menu: 3),
              leadingIcon: Icons.settings,
              children: [
                _ListTile(
                  title: 'Connexion Odoo',
                  isActive: selected.isSelected(menu: 3, sub: 3),
                  leadingIcon: Icons.lock_open,
                  contentPadding: const EdgeInsets.symmetric(horizontal: 40),
                ),
                _ListTile(
                  title: 'Gestion des utilisateurs',
                  isActive: selected.isSelected(menu: 3, sub: 4),
                  leadingIcon: Icons.group,
                  contentPadding: const EdgeInsets.symmetric(horizontal: 40),
                ),
              ],
            ),

            const Spacer(),

            // === Déconnexion
            SafeArea(
              child: ListTile(
                onTap: () async {
                  await ref.read(loginPageModelProvider.notifier).logOut();
                  await UserStruct(id: '1').deleteLocalStorage();
                  WidgetsBinding.instance.addPostFrameCallback((_) {
                    SplashRoute().go(context);
                  });
                },
                leading: const Icon(Icons.logout),
                title: Text(
                  'Se déconnecter',
                  style: AppTheme.of(context).bodyLarge,
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

class SelectedDrawerState {
  const SelectedDrawerState({
    required this.menuIndex,
    required this.subMenuIndex,
  });
  final int menuIndex;
  final int subMenuIndex;

  bool isSelected({required int menu, int? sub}) {
    if (sub == null) return menuIndex == menu;
    return menuIndex == menu && subMenuIndex == sub;
  }
}

class _ListTile extends StatelessWidget {
  const _ListTile({
    Key? key,
    required this.title,
    this.isActive = false,
    this.onTap,
    this.leadingIcon,
    this.contentPadding,
    this.trailing,
  }) : super(key: key);
  final bool isActive;
  final String title;
  final VoidCallback? onTap;
  final IconData? leadingIcon;
  final EdgeInsetsGeometry? contentPadding;
  final Widget? trailing;

  @override
  Widget build(BuildContext context) {
    return ListTile(
      onTap: onTap,
      contentPadding: contentPadding,
      leading: Icon(
        leadingIcon,
        color: isActive ? AppTheme.of(context).primary : null,
      ),
      title: Text(
        title,
        style: AppTheme.of(context).bodyLarge.copyWith(
          color: isActive ? AppTheme.of(context).primary : null,
        ),
      ),
      trailing: trailing,
    );
  }
}

class _ExpansionTileComponent extends StatelessWidget {
  const _ExpansionTileComponent({
    required this.title,
    this.isExpanded = false,
    this.onExpansionChanged,
    this.isActive = false,
    this.children = const <Widget>[],
    this.leadingIcon,
  });
  final bool isExpanded;
  final void Function(bool)? onExpansionChanged;
  final bool isActive;
  final List<Widget> children;
  final String title;
  final IconData? leadingIcon;

  @override
  Widget build(BuildContext context) {
    return ExpansionTile(
      initiallyExpanded: isExpanded,
      onExpansionChanged: onExpansionChanged,
      tilePadding: const EdgeInsetsDirectional.symmetric(horizontal: 10),
      shape: LinearBorder.none,
      title: Row(
        children: [
          Icon(
            leadingIcon,
            color: isActive ? AppTheme.of(context).primary : null,
          ),
          const SizedBox(width: 12),
          Expanded(
            child: Text(
              title,
              style: AppTheme.of(context).bodyLarge.copyWith(
                color: isActive ? AppTheme.of(context).primary : null,
              ),
            ),
          ),
        ],
      ),
      trailing: Icon(
        isExpanded ? Icons.keyboard_arrow_up : Icons.keyboard_arrow_right,
      ),
      children: children,
    );
  }
}