using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TimerSystem : MonoSingleton<TimerSystem>
{
    private List<TimeTask> m_TimerTaskList = new List<TimeTask>();

    private void Update()
    {
        for (int i = 0; i < m_TimerTaskList.Count; i++)
        {
            TimeTask timeTask = m_TimerTaskList[i];

            if (timeTask.remainingTime <= 0)
            {
                if (timeTask.callBack != null)
                {
                    try
                    {
                        timeTask.callBack();
                    }
                    catch(Exception e)
                    {
                        Debug.LogException(e);
                    }
                }

                if (timeTask.count == 1)
                {
                    m_TimerTaskList.RemoveAt(i);
                    i--;
                }
                else
                {
                    if (timeTask.count != 0)
                    {
                        timeTask.count -= 1;
                    }
                    timeTask.remainingTime = timeTask.delay;
                }
            }
            if (!timeTask.pause)
            {
                timeTask.remainingTime -= Time.deltaTime;
            }
        }
    }

    public TimeTask AddTimeTask(Action callback, float delay, int count = 1)
    {
        TimeTask task = new TimeTask(callback, delay, count);
        m_TimerTaskList.Add(task);
        return task;
    }

    public bool RemoveTimeTask(TimeTask task)
    {
        if (task != null)
        {
            if (m_TimerTaskList.Contains(task))
            {
                m_TimerTaskList.Remove(task);

                return true;
            }
        }
        return false;
    }
}