m3_lightmeter/lib/providers/equipment_profile_provider.dart

import 'package:flutter/material.dart';
import 'package:m3_lightmeter_resources/m3_lightmeter_resources.dart';
import 'package:uuid/uuid.dart';

class EquipmentProfileProvider extends StatefulWidget {
  final Widget child;

  const EquipmentProfileProvider({required this.child, super.key});

  static EquipmentProfileProviderState of(BuildContext context) {
    return context.findAncestorStateOfType<EquipmentProfileProviderState>()!;
  }

  @override
  State<EquipmentProfileProvider> createState() => EquipmentProfileProviderState();
}

class EquipmentProfileProviderState extends State<EquipmentProfileProvider> {
  final List<EquipmentProfileData> _profiles = [
    const EquipmentProfileData(
      id: '',
      name: '',
      apertureValues: apertureValues,
      ndValues: ndValues,
      shutterSpeedValues: shutterSpeedValues,
      isoValues: isoValues,
    )
  ];

  late EquipmentProfileData _selectedProfile = _profiles.first;

  @override
  Widget build(BuildContext context) {
    return EquipmentProfiles(
      profiles: _profiles,
      child: EquipmentProfile(
        data: _selectedProfile,
        child: widget.child,
      ),
    );
  }

  void setProfile(EquipmentProfileData data) {
    setState(() {
      _selectedProfile = data;
    });
  }

  /// Creates a default equipment profile
  void addProfile(String name) {
    _profiles.add(EquipmentProfileData(
      id: const Uuid().v1(),
      name: name,
      apertureValues: apertureValues,
      ndValues: ndValues,
      shutterSpeedValues: shutterSpeedValues,
      isoValues: isoValues,
    ));
    setState(() {});
  }

  void updateProdile(EquipmentProfileData data) {
    final indexToUpdate = _profiles.indexWhere((element) => element.id == data.id);
    if (indexToUpdate >= 0) {
      _profiles[indexToUpdate] = data;
      if (data.id == _selectedProfile.id) {
        _selectedProfile = _profiles[indexToUpdate];
      }
      setState(() {});
    }
  }

  void deleteProfile(EquipmentProfileData data) {
    _profiles.remove(data);
    if (data.id == _selectedProfile.id) {
      _selectedProfile = _profiles.first;
    }
    setState(() {});
  }
}

class EquipmentProfiles extends InheritedWidget {
  final List<EquipmentProfileData> profiles;

  const EquipmentProfiles({
    required this.profiles,
    required super.child,
    super.key,
  });

  static List<EquipmentProfileData> of(BuildContext context, {bool listen = true}) {
    if (listen) {
      return context.dependOnInheritedWidgetOfExactType<EquipmentProfiles>()!.profiles;
    } else {
      return context.findAncestorWidgetOfExactType<EquipmentProfiles>()!.profiles;
    }
  }

  @override
  bool updateShouldNotify(EquipmentProfiles oldWidget) => true;
}

class EquipmentProfile extends InheritedWidget {
  final EquipmentProfileData data;

  const EquipmentProfile({
    required this.data,
    required super.child,
    super.key,
  });

  static EquipmentProfileData of(BuildContext context, {bool listen = true}) {
    if (listen) {
      return context.dependOnInheritedWidgetOfExactType<EquipmentProfile>()!.data;
    } else {
      return context.findAncestorWidgetOfExactType<EquipmentProfile>()!.data;
    }
  }

  @override
  bool updateShouldNotify(EquipmentProfile oldWidget) => true;
}