import 'dart:async';

import 'package:flutter/material.dart';
import 'package:sendtrain/models/activity_model.dart';

class ActivityTimerModel with ChangeNotifier {
  int _tickCount = 0;
  int _currentAction = 0;
  ActivityModel? _activity;
  Timer? _periodicTimer;
  List<String> _actionMap = [];

  int get tickCount => _tickCount;
  int get currentAction => _currentAction;
  ActivityModel? get activity => _activity;
  Timer? get periodicTimer => _periodicTimer;
  String get actionType => _actionMap[_currentAction];

  void setup(ActivityModel activity) {
    // if there isn't an activity yet
    // or we're coming from another activity
    // setup new timer
    if (_activity == null || activity.id != _activity?.id) {
      _periodicTimer?.cancel();
      _activity = activity;
      _currentAction = 0;
      _actionMap = [];
      // for now we just do alternating rest/sets
      // in the future, we'll make this more modifiable
      for (int i = 0; i < activity.actions[0].activityActionSet.total; i++) {
        _actionMap.addAll(['Set', 'Rest']);

      }
      getValue();
    }
  }

  void getValue() {
    if (_actionMap[_currentAction] == "Rest") {
      _tickCount = _activity!.actions[0].activityActionSet.rest ~/ 1000;

    } else {
      _tickCount = _activity!.actions[0].activityActionSet.reps.rest ~/ 1000;
    }
  }

  void pause() {
    _periodicTimer?.cancel();
    notifyListeners();
  }

  void setAction(int actionNum, String type) {
    // always pause if we're manually taversing
    if (type == 'manual') { pause(); }
    _currentAction = actionNum;
    getValue();
    notifyListeners();
  }

  void nextAction(String type) {
    _currentAction + 1 >= _actionMap.length
        ? pause()
        : setAction(_currentAction + 1, type);
  }

  bool isActive() {
    return (_periodicTimer != null && _periodicTimer!.isActive) ? true : false;
  }

  void start() {
    if (_activity != null) {
      _periodicTimer?.cancel();
      _periodicTimer =
          Timer.periodic(const Duration(seconds: 1), (Timer timer) {
        if (_tickCount <= 0) {
          nextAction('automatic');
        } else {
          _tickCount--;
        }
        notifyListeners();
      });
    }
  }
}