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

public class UILevelGroup : MonoBehaviour
{

    public GameObject[] levels;
    private Vector3[] levelPositions;

    private bool isExpanded = false;
    private int isPlayingCount = 0;

    // Start is called before the first frame update
    void Start()
    {
        var levelComponents = GetComponentsInChildren<UILevel>();
        levels = new GameObject[levelComponents.Length];
        levelPositions = new Vector3[levelComponents.Length];
        for (int i = 0; i < levelComponents.Length; i++)
        {
            levels[i] = levelComponents[i].gameObject;
            levelPositions[i] = levels[i].transform.position;
            levels[i].transform.position = transform.position;

            var background = levels[i].GetComponent<UILevel>().background;
            background.color = new Color(background.color.r, background.color.g, background.color.b, 0.0f);
            var number = levels[i].GetComponent<UILevel>().number;
            number.color = new Color(number.color.r, number.color.g, number.color.b, 0.0f);
            
            levels[i].SetActive(false);
        }
    }

    public void ClickLevelGroupButton()
    {
        Debug.Log("Clicked!");
        Debug.Log(gameObject.name);
        if (isPlayingCount != 0) return;
        isPlayingCount = levels.Length;
        if (isExpanded) { ClickCloseLevels(); }
        else { ClickExpandLevels(); }
    }

    void ClickExpandLevels()
    {
        isExpanded = true;
        for (int i = 0; i < levels.Length; ++i)
        {
            levels[i].SetActive(true);

            var background = levels[i].GetComponent<UILevel>().background;
            background.DOColor(new Color(background.color.r, background.color.g, background.color.b, 1.0f), 0.5f);
            var number = levels[i].GetComponent<UILevel>().number;
            number.DOColor(new Color(number.color.r, number.color.g, number.color.b, 1.0f), 0.5f);

            levels[i].transform.DOMove(levelPositions[i], 1.0f).onComplete = delegate { isPlayingCount--; };
        }
    }

    void ClickCloseLevels()
    {
        isExpanded = false;
        foreach (var level in levels)
        {
            var background = level.GetComponent<UILevel>().background;
            background.DOColor(new Color(background.color.r, background.color.g, background.color.b, 0.0f), 0.5f);
            var number = level.GetComponent<UILevel>().number;
            number.DOColor(new Color(number.color.r, number.color.g, number.color.b, 0.0f), 0.5f);

            level.transform.DOMove(transform.position, 1.0f).onComplete = delegate { level.SetActive(false); isPlayingCount--; };
        }

    }
}