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// Copyright (C) 2025, uvok cheetah
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

import 'package:flutter/foundation.dart';
import 'package:logger/logger.dart';
import 'package:uvok_epaper_badge/model/badge_motive.dart';
import 'package:uvok_epaper_badge/model/motive_selection/badge_motive_selection.dart';

Logger logger = Logger();

class BadgeMotiveViewModel extends ChangeNotifier {
  final BadgeMotiveSelection _motivSelect;
  List<BadgeMotive> _motives = [];
  bool _busy = false;
  String? errorMessage;

  BadgeMotiveViewModel({required BadgeMotiveSelection motivSelect})
    : _motivSelect = motivSelect;

  bool get allowSelection => !_busy;
  List<BadgeMotive> get motives => _motives;
  BadgeMotive? currentMotive;

  Future<void> updateMotives() async {
    await safeAction(() async {
      _motives = await _motivSelect.getMotives();
    });
  }

  Future<void> setMotive(BadgeMotive motive) async {
    await safeAction(() async {
      logger.t(">Set motive to ${motive.id}");
      await _motivSelect.setCurrentMotive(motive);
      logger.t("<Set motive to ${motive.id}");
      currentMotive = motive;
    });
  }

  Future<void> getCurrentMotive() async {
    await safeAction(() async {
      currentMotive = await _motivSelect.getCurrentMotive();
    });
  }

  Future<void> safeAction(Future<void> Function() action) async {
    if (_busy) return;
    _busy = true;
    notifyListeners();

    try {
      await action();
    } on Exception catch (e) {
      errorMessage = "${e.runtimeType}: ${e.toString()}";
    } finally {
      _busy = false;
      notifyListeners();
    }
  }
}