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

namespace SLSUtilities.General
{
    public class Timer
    {
        public float duration;
        public float currentTime;
        public bool isInfinite;
        public bool keepActions;
        public float Percentage => duration > 0 ? Mathf.Clamp01(currentTime / duration) : 1f;
        public bool isCompleted;

        public List<PrioritizedAction> onComplete;
        private IDisposable _autoObserver;
        
        public Timer(float duration, bool keepActions = true, bool isInfinite = false)
        {
            this.duration = duration;
            this.isInfinite = isInfinite;
            this.keepActions = keepActions;
            currentTime = 0f;
            onComplete = new List<PrioritizedAction>();
        }
        
        public virtual void Update(float deltaTime)
        {
            currentTime += deltaTime;
            
            if (!isInfinite && !isCompleted && currentTime >= duration)
            {
                isCompleted = true;
                onComplete.Invoke();
                if (!keepActions)
                {
                    onComplete.Clear();
                }
            }
            else if (isInfinite)
            {
                onComplete.Invoke();
            }
        }
        
        public virtual void Reset(float newDuration = -1f)
        {
            isCompleted = false;
            currentTime = 0f;
            if(newDuration >= 0f)
            {
                duration = newDuration;
            }
        }

        public virtual void Complete(bool invokeAction = true)
        {
            currentTime = duration;
            isCompleted = true;
            if (invokeAction)
            {
                onComplete.Invoke();
                if (!keepActions)
                {
                    onComplete.Clear();
                }
            }
        }
    }
}