import 'package:eatvio_app/features/settings/entities/settings_entity.dart';
import 'package:eatvio_app/features/settings/presentation/bloc/settings_cubit/settings_cubit.dart';
import 'package:eatvio_app/features/settings/presentation/bloc/settings_cubit/settings_state.dart';
import 'package:eatvio_app/core/theme/theme_helper.dart';
import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:go_router/go_router.dart';

class PhysicalActivityScreen extends StatefulWidget {
  final SettingsEntity settingsEntity;

  const PhysicalActivityScreen({super.key, required this.settingsEntity});

  @override
  State<PhysicalActivityScreen> createState() => _PhysicalActivityScreenState();
}

enum PhysicalActivity { minimum, low, medium, high, extreme }

class _PhysicalActivityScreenState extends State<PhysicalActivityScreen> {
  PhysicalActivity? _physicalActivity;

  PhysicalActivity? _getPhysicalActivityFromCoefficient(double coefficient) {
    switch (coefficient) {
      case 1.2:
        return PhysicalActivity.minimum;
      case 1.375:
        return PhysicalActivity.low;
      case 1.55:
        return PhysicalActivity.medium;
      case 1.7:
        return PhysicalActivity.high;
      case 1.9:
        return PhysicalActivity.extreme;
      default:
        return null;
    }
  }

  void _updatePhysicalActivityFromState() {
    final state = widget.settingsEntity.settingsCubit.state;
    if (state is SettingsStateLoaded) {
      final newActivity = _getPhysicalActivityFromCoefficient(state.profileDetails.activityCoefficient);
      if (newActivity != _physicalActivity) {
        setState(() {
          _physicalActivity = newActivity;
        });
      }
    }
  }

  @override
  void initState() {
    super.initState();
    _updatePhysicalActivityFromState();
    _physicalActivity ??= _getPhysicalActivityFromCoefficient(widget.settingsEntity.profileDetailsModel.activityCoefficient);
  }

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    // Update when returning to this screen
    _updatePhysicalActivityFromState();
  }

  @override
  Widget build(BuildContext context) {
    return BlocListener<SettingsCubit, SettingsState>(
      bloc: widget.settingsEntity.settingsCubit,
      listener: (context, state) {
        _updatePhysicalActivityFromState();
      },
      child: BlocBuilder<SettingsCubit, SettingsState>(
        bloc: widget.settingsEntity.settingsCubit,
        builder: (context, state) {
          return Scaffold(
            appBar: AppBar(title: const Text('Физическая нагрузка')),
            bottomSheet: _saveButton(),
            body: SingleChildScrollView(
              physics: const BouncingScrollPhysics(),
              padding: const EdgeInsets.only(top: 16, bottom: 80),
              child: Column(
                children: [
                  Row(
                    children: [
                      Radio<PhysicalActivity>(
                        value: PhysicalActivity.minimum,
                        // ignore: deprecated_member_use
                        groupValue: _physicalActivity,
                        // ignore: deprecated_member_use
                        onChanged: (PhysicalActivity? value) {
                          setState(() {
                            _physicalActivity = value;
                          });
                        },
                      ),
                      const Expanded(
                        child: Padding(
                          padding: EdgeInsets.only(left: 8, right: 16),
                          child: Text('1,2 — минимальный (сидячая работа, отсутствие физических нагрузок);'),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    children: [
                      Radio<PhysicalActivity>(
                        value: PhysicalActivity.low,
                        // ignore: deprecated_member_use
                        groupValue: _physicalActivity,
                        // ignore: deprecated_member_use
                        onChanged: (PhysicalActivity? value) {
                          setState(() {
                            _physicalActivity = value;
                          });
                        },
                      ),
                      const Expanded(
                        child: Padding(
                          padding: EdgeInsets.only(left: 8, right: 16),
                          child: Text('1,375 — низкий (тренировки не менее 20 мин 1–3 раза в неделю);'),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    children: [
                      Radio<PhysicalActivity>(
                        value: PhysicalActivity.medium,
                        // ignore: deprecated_member_use
                        groupValue: _physicalActivity,
                        // ignore: deprecated_member_use
                        onChanged: (PhysicalActivity? value) {
                          setState(() {
                            _physicalActivity = value;
                          });
                        },
                      ),
                      const Expanded(
                        child: Padding(padding: EdgeInsets.only(left: 8, right: 16), child: Text('1,55 — умеренный (тренировки 30–60 мин 3–4 раза в неделю);')),
                      ),
                    ],
                  ),
                  Row(
                    children: [
                      Radio<PhysicalActivity>(
                        value: PhysicalActivity.high,
                        // ignore: deprecated_member_use
                        groupValue: _physicalActivity,
                        // ignore: deprecated_member_use
                        onChanged: (PhysicalActivity? value) {
                          setState(() {
                            _physicalActivity = value;
                          });
                        },
                      ),
                      const Expanded(
                        child: Padding(
                          padding: EdgeInsets.only(left: 8, right: 16),
                          child: Text('1,7 — высокий (тренировки 30–60 мин 5–7 раза в неделю; тяжёлая физическая работа);'),
                        ),
                      ),
                    ],
                  ),
                  Row(
                    children: [
                      Radio<PhysicalActivity>(
                        value: PhysicalActivity.extreme,
                        // ignore: deprecated_member_use
                        groupValue: _physicalActivity,
                        // ignore: deprecated_member_use
                        onChanged: (PhysicalActivity? value) {
                          setState(() {
                            _physicalActivity = value;
                          });
                        },
                      ),
                      const Expanded(
                        child: Padding(
                          padding: EdgeInsets.only(left: 8, right: 16),
                          child: Text('1,9 — экстремальный (несколько интенсивных тренировок в день'),
                        ),
                      ),
                    ],
                  ),
                ],
              ),
            ),
          );
        },
      ),
    );
  }

  InkWell _saveButton() {
    return InkWell(
      onTap: () {
        late final double activityCoefficient;
        switch (_physicalActivity) {
          case PhysicalActivity.minimum:
            activityCoefficient = 1.2;
            break;
          case PhysicalActivity.low:
            activityCoefficient = 1.375;
            break;
          case PhysicalActivity.medium:
            activityCoefficient = 1.55;
            break;
          case PhysicalActivity.high:
            activityCoefficient = 1.7;
            break;
          case PhysicalActivity.extreme:
            activityCoefficient = 1.9;
            break;
          default:
            break;
        }
        widget.settingsEntity.settingsCubit.updateProfileDetails(
          profileDetailsModel: (widget.settingsEntity.settingsCubit.state as SettingsStateLoaded).profileDetails.copyWith(
            activityCoefficient: activityCoefficient,
          ),
        );
        GoRouter.of(context).pop();
      },
      borderRadius: BorderRadius.circular(20),
      child: Ink(
        height: 52,
        width: MediaQuery.of(context).size.width - 32,
        decoration: BoxDecoration(borderRadius: BorderRadius.circular(20), color: appTheme.blueA400),
        child: const Center(
          child: Text(
            'Сохранить',
            style: TextStyle(color: Colors.white, height: 1, fontWeight: FontWeight.w600, fontSize: 18),
          ),
        ),
      ),
    );
  }
}