using System;
using System.Collections.Generic;

namespace Script.FrameWork.Time
{
    public class TimerManager : Singleton<TimerManager>
    {
        private List<Timer> _timersToAdd = new();
        private Dictionary<string, Timer> _timerDic = new();
        private List<Timer> _timers = new();

        public void AddTimer(float duration, Action completeAction, Action<float> updateAction = null)
        {
            var timer = new Timer(duration, updateAction, completeAction);
            _timersToAdd.Add(timer);
        }

        public void AddTimer(string key, float duration, Action completeAction, Action<float> updateAction = null)
        {
            RemoveTimer(key);
            var timer = new Timer(duration, updateAction, completeAction);
            _timersToAdd.Add(timer);
        }

        public void RemoveTimer(string key)
        {
            if (_timerDic.TryGetValue(key, out var timer))
            {
                timer.Cancel();
                _timerDic.Remove(key);
            }
        }

        public void RemoveAllTimers()
        {
            foreach (var timer in _timers)
            {
                timer.Cancel(true);
            }
            _timers.Clear();
            _timerDic.Clear();
            _timersToAdd.Clear();
        }

        public void Update(float dt)
        {
            if (_timersToAdd.Count > 0)
            {
                _timers.AddRange(_timersToAdd);
                _timersToAdd.Clear();
            }

            for (var i = _timers.Count - 1; i >= 0; i--)
            {
                var timer = _timers[i];
                if (timer.Finished)
                {
                    timer.Destroy();
                    _timers.Remove(timer);
                }
                else
                    timer.Update(dt);
            }
        }
    }
}