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

namespace AibisDream.Test
{
    public class OptionTest : MonoBehaviour
    {
        private GameObject panel;
        private GameObject prefab;

        void Start()
        {
            // 初始化时注册Command
            // 第一个参数为[command name=xxx]的参数
            // 第二个参数是注册的函数，在Yarn走到选择项时触发
            DialogController.Instance.RegisterOptionCommand("show_buttons", ShowButtons);

            // 不重要
            panel = transform.GetChild(0).gameObject;
            prefab = Resources.Load<GameObject>("Prefabs/UI/Choice Button");
        }

        /// <summary>
        /// 注册的命令
        /// </summary>
        /// <param name="options">触发时提供的选择项</param>
        public void ShowButtons(YarnOption[] options)
        {
            foreach (YarnOption option in options)
            {
                var instance = Instantiate(prefab, panel.transform, true);
                instance.GetComponentInChildren<TextMeshProUGUI>().text = option.Text;
                instance.GetComponent<Button>().onClick.AddListener(() => {

                    // 执行SelectOption(), 对话就会从对应的选项往下继续执行
                    option.SelectOption();
                    
                    panel.SetActive(false);
                });
            }
        }

        public void OnDestroy()
        {
            // 注意在合适的时机移除命令
            DialogController.Instance.RemoveOptionCommand("show_buttons");
        }
    }
}