using System;
using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.InputSystem;
using UnityEngine.UI;

public class Stamina : MonoBehaviour
{
    [SerializeField] Slider staminaSlider;

    public int maxStamina = 100;
    public int currentStamina;
    public int tempStamina;

    public bool staminaIsBeingUsed = false;
    public bool staminaIsRefilling = false;
    public float startRefillTimer = 0f;
    public float endRefillTimer = 2f;

    // Start is called before the first frame update
    void Start()
    {
        currentStamina = maxStamina;
        tempStamina = maxStamina;
    }

    // Update is called once per frame
    void Update()
    {
        staminaSlider.value = tempStamina;

        if(tempStamina != currentStamina)
        {
            if(tempStamina < currentStamina)
            {
                tempStamina += 1;
            }

            if(tempStamina > currentStamina)
            {
                tempStamina -= 1;
            }
        }

        if(staminaIsRefilling)
        {
            currentStamina = maxStamina;
        }

        if(tempStamina == maxStamina && currentStamina == maxStamina)
        {
            staminaIsRefilling = false;
        }

        if(!staminaIsBeingUsed && currentStamina < maxStamina && tempStamina < maxStamina && currentStamina == tempStamina)
        {
            startRefillTimer += Time.deltaTime;

            if(startRefillTimer >= endRefillTimer)
            {
                staminaIsRefilling = true;
                startRefillTimer = 0f;
            }
        }

        if(staminaIsBeingUsed && currentStamina < maxStamina && tempStamina < maxStamina && currentStamina == tempStamina)
        {
            startRefillTimer = 0f;
        }
    }
}