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

/// <summary>
/// 分类实例脚本
/// </summary>
public class ClassificationItem : MonoBehaviour
{
    /// <summary>
    /// 是否已展开菜单
    /// </summary>
    public bool is_expanded;
    /// <summary>
    /// 分类名称
    /// </summary>
    public TextMeshProUGUI ClassificationName;
    /// <summary>
    /// 一级标题按钮
    /// </summary>
    public Button FirstTittle;
    /// <summary>
    /// 展开图标
    /// </summary>
    public Image Expand;
    /// <summary>
    /// 收起图标
    /// </summary>
    public Image Collapse;
    /// <summary>
    /// 二级菜单容器
    /// </summary>
    public RectTransform DeviceContent;
    /// <summary>
    /// 容器物体
    /// </summary>
    public RectTransform ParentContent;

    /// <summary>
    /// 设备预制体
    /// </summary>
    public static DeviceItem DeviceItemPrefab;

    /// <summary>
    /// 默认颜色
    /// </summary>
    public Color NormalColor = new Color(0.066f, 0.316f, 0.598f);
    /// <summary>
    /// 高亮颜色
    /// </summary>
    public Color HighlightColor = new Color(0, 0.766f, 1);

    /// <summary>
    /// 实例初始化
    /// </summary>
    public void Init(ClassificationData classificationData)
    {
        FirstTittle.onClick.AddListener(OnFirstTittleClick);
        ParentContent = transform.parent.GetComponent<RectTransform>();

        if (classificationData == null)
            return;

        //实例化分类并进一步实例化设备及其对应信息
        ClassificationName.text = classificationData.classification;
        if (DeviceItemPrefab == null) DeviceItemPrefab = Resources.Load<DeviceItem>("Prefabs/UI/DeviceItem");
        for (int i = 0; i < classificationData.devices.Length; i++)
        {
            var inst = Instantiate(DeviceItemPrefab, DeviceContent);
            inst.Init(classificationData.devices[i]);
        }
    }

    /// <summary>
    /// 单击一级菜单事件
    /// </summary>
    private void OnFirstTittleClick()
    {
        is_expanded = !is_expanded;
        Expand.gameObject.SetActive(!is_expanded);
        Collapse.gameObject.SetActive(is_expanded);
        DeviceContent.gameObject.SetActive(is_expanded);

        //刷新布局
        LayoutRebuilder.ForceRebuildLayoutImmediate(ParentContent);
    }
}