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

//单选答题框
public class AnserWindowCtrl : MonoBehaviour
{
    public Toggle toggle_Prefab;
    public Text text_ask;
    public Button button_sure;
    public ToggleGroup toogleGroup;
    public PromptTextCtrl promptText;
    List<Toggle> curentToggles = new List<Toggle>();

    UnityAction<string> answerEvent;//答题完成事件  返回选项

    UnityAction<bool, string> answerEventAndResult;//答题事件 返回答案和选项 

    Question questionData;
    // Start is called before the first frame update
    void Start()
    {
        button_sure.onClick.AddListener(ButtonSure);
    }

    /// <summary>
    /// 注入题库和答案 答题完成事件返回学员的选项
    /// </summary>
    /// <param name="ask"></param>
    /// <param name="answer"></param>
    public void SetAskAndAnswer(string ask,List<string> options,UnityAction<string> selectOver)
    {
        this.gameObject.SetActive(true);
        button_sure.interactable = true;

        text_ask.text = ask;
        for (int i = 0; i < curentToggles.Count; i++)//关闭现有选项
        {
            curentToggles[i].gameObject.SetActive(false);
        }
        for (int i = 0; i < options.Count; i++)//更新选项
        {
            if (i > curentToggles.Count - 1)
                curentToggles.Add(Instantiate<GameObject>(toggle_Prefab.gameObject, toogleGroup.transform).GetComponent<Toggle>());//创建新的UI
            curentToggles[i].gameObject.SetActive(true);
            curentToggles[i].isOn = false;
            curentToggles[i].group = toogleGroup;
            curentToggles[i].GetComponentInChildren<Text>().text = options[i];
        }
        answerEvent = selectOver;
    }

    /// <summary>
    /// 注入问题 和答题结束事件
    /// </summary>
    /// <param name="question"> </param>
    /// <param name="selectOver"> 答题结束时调用 并传回答题结果</param>
    public void SetQuestion(Question question, UnityAction<bool,string> selectOver)
    {
        answerEventAndResult  = selectOver;
        questionData = question;
        string ask = question.question;
        List<string> options = new List<string>();
        foreach (var item in question.options)
        {
            options.Add($"{item.Key}.{item.Value}");
        }
        SetAskAndAnswer(ask, options, null);
    }

    public void Hide()
    {
        this.gameObject.SetActive(false);
    }

    //确认
    public void ButtonSure()
    {
        button_sure.interactable = false;
        string selectOptionText = "";
        for (int i = 0; i < curentToggles.Count; i++)
        {
            if (curentToggles[i].isOn)//选中的选项
            {
                selectOptionText = curentToggles[i].GetComponentInChildren<Text>().text;
                break;
            }
        }
        if (selectOptionText == "") //未选择选项时 无法提交
        {
            promptText.SetPrompt(LocalizationManager.Get("请选择选项后确认"), Color.red, 2f);
            return;
        }


        if (answerEvent != null)
        {
            answerEvent.Invoke(selectOptionText);//返回选项
            //answerEvent = null;
        }
        else if (answerEventAndResult != null)//
        {
            string xuanxiang = selectOptionText.Split('.')[0].Trim();//根据组装规则获取选项代号
            answerEventAndResult.Invoke(questionData.rightOptionsKey == xuanxiang, selectOptionText);
            //answerEventAndResult = null;
        }
        
    }

    //选择错误时 显示答题结果
    public void ShowRightResult(string msg)
    {
        promptText.SetPrompt(LocalizationManager.Format("选择错误，应{0}", msg), Color.red, 2.5f);
    }

    
}