using System;
using System.Collections;
using UnityEngine;
using UnityEngine.UI;

public class RewardTimerButton : RewardButton
{
    [Header("Fields")]
    [SerializeField] private Image _timer;
    [SerializeField] private Text _power;

    [Header("Settings")]
    [SerializeField, Range(1, 100)] private int _maximumPower = 5;
    [SerializeField, Range(1, 100)] private int _minimumPower = 2;
    [SerializeField] private Color _timerLoadColour;

    public int Power { get; private set; } = 5;
    
    private Color _textColour;

    protected override void Init()
    {
        _textColour = _power.color;
    }

    public override void Begin()
    {
        base.Begin();
        
        Power = _maximumPower;
        _minimumPower = Mathf.Clamp(_minimumPower, 1, _maximumPower);
        _timer.fillAmount = 0f;
        
        _timer.gameObject.Hide();
        _power.gameObject.Hide();
    }
    
    protected override void OnRewardLoaded()
    {
        base.OnRewardLoaded();

        StartCoroutine(PowerReduceRoutine());
    }

    private IEnumerator PowerReduceRoutine()
    {
        _power.text = $"x{Power}";
        _power.color = _timerLoadColour;
        _power.gameObject.Show();
        
        _timer.fillAmount = 0f;
        _timer.color = _timerLoadColour;
        _timer.gameObject.Show();

        const float firstReduceDelay = 0.33f;
        yield return new WaitForSeconds(firstReduceDelay);

        while (Power > _minimumPower)
        {
            _power.text = $"x{Power}";
            float currentFill = _timer.fillAmount;

            const float mainReduceDelay = 1f;
            yield return Tween.DoTween(mainReduceDelay,
                t =>
                {
                    _timer.fillAmount = Mathf.Lerp(currentFill, 1f, t);
                });

            _timer.fillAmount = 0f;
            Power--;
        }

        _power.text = $"x{Power}";
        _power.color = _textColour;
        _timer.color = _textColour;
        yield return null;
    }

    protected void OnDisable()
    {
        StopAllCoroutines();
    }

    
}