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

/// <summary>
/// 进度条功能，带有+-按钮控制，最大数量按钮
/// </summary>
public class SliderPanel : MonoBehaviour
{
    [SerializeField] Text countText;
    [SerializeField] Slider slider;
    [SerializeField] LongPressButton addBtn;
    [SerializeField] LongPressButton decBtn;
    [SerializeField] ButtonEx maxBtn;

    int count;
    int maxCount;

    Action<int> OnChangeEvent;
    void Start()
    {
        slider.AddListener((value) => { Refresh(); });
        addBtn.AddListener(() =>
        {
            slider.value += 1;
            Refresh();
        });
        addBtn.onPress.AddListener(() =>
        {
            slider.value += 1;
            Refresh();
        });
        decBtn.AddListener(() =>
        {
            slider.value -= 1;
            Refresh();
        });
        decBtn.onPress.AddListener(() =>
        {
            slider.value -= 1;
            Refresh();
        });

        maxBtn.AddListener(() =>
        {
            slider.value = slider.maxValue;
            Refresh();
        });
    }

    public void Init(Action<int> _OnChangeEvent, int _maxCount, int _count = 1)
    {
        count = _count;
        maxCount = _maxCount;
        slider.minValue = 1;
        slider.maxValue = _maxCount;
        slider.value = count;

        Refresh();
        OnChangeEvent = _OnChangeEvent;

    }

    void Refresh()
    {
        count = (int)slider.value;
        countText.text = count.ToString();
        if (count >= maxCount)
        {
            addBtn.interactable = false;
            addBtn.SetColorful(null, false);
            maxBtn.interactable = false;
            maxBtn.SetColorful(null, false);
        }
        else
        {
            addBtn.interactable = true;
            addBtn.SetColorful(null, true);
            maxBtn.interactable = true;
            maxBtn.SetColorful(null, true);
        }

        if (count <= 0)
        {
            decBtn.interactable = false;
            decBtn.SetColorful(null, false);
        }
        else
        {
            decBtn.interactable = true;
            decBtn.SetColorful(null, true);
        }

        OnChangeEvent?.Invoke(count);
    }

}