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

public class SafetylearningQuestion : MonoBehaviour
{
    public Text questionIndexText;
    public Text questionText;
    public GameObject answerContainer;
    public GameObject answerButtonPrefab;
    QuestionInfo questionInfo;
    public bool isChinese = false;
    List<GameObject> answerButtons = new List<GameObject>();

    // 选项选择事件
    public event Action OnOptionSelected;

    public void Init(int questionIndex, QuestionInfo question)
    {
        answerButtons.Clear();
        questionIndexText.text = questionIndexText.text.Replace("{0}", questionIndex.ToString());
        answerButtonPrefab.SetActive(false);
        questionInfo = question;
        isChinese = LanguageManager.Instance.languageType == LanguageManager.LanguageType.Chinese;
        questionText.text = isChinese ? question.questionContent : question.questionContentEn;
        for (int i = 0; i < question.options.Count; i++)
        {
            int index = i;
            var option = question.options[i];
            var answerButton = Instantiate(answerButtonPrefab, answerContainer.transform);
            answerButton.SetActive(true);
            answerButton.GetComponent<Button>().onClick.AddListener(() => ClickAnswerButton(index));
            answerButton.GetComponent<SafetylearningOption>().Init(option, isChinese);
            answerButtons.Add(answerButton);
        }
    }

    public void ClickAnswerButton(int index)
    {
        bool isSelected = answerButtons[index].GetComponent<SafetylearningOption>().isSelected;
        answerButtons[index].GetComponent<SafetylearningOption>().SetSelected(!isSelected);
        // 触发选择事件
        OnOptionSelected?.Invoke();
    }

    /// <summary>
    /// 获取用户选择的答案（如 "AB"、"C"）
    /// </summary>
    public string GetUserAnswer()
    {
        string answer = "";
        for (int i = 0; i < answerButtons.Count; i++)
        {
            if (answerButtons[i].GetComponent<SafetylearningOption>().isSelected)
            {
                answer += questionInfo.options[i].optionLabel;
            }
        }
        // 排序确保 AB 而不是 BA
        char[] chars = answer.ToCharArray();
        Array.Sort(chars);
        return new string(chars);
    }

    /// <summary>
    /// 是否已选择答案
    /// </summary>
    public bool HasSelectedAnswer()
    {
        foreach (var btn in answerButtons)
        {
            if (btn.GetComponent<SafetylearningOption>().isSelected)
                return true;
        }
        return false;
    }

    /// <summary>
    /// 禁用所有选项交互
    /// </summary>
    public void DisableAllOptions()
    {
        foreach (var btn in answerButtons)
        {
            btn.GetComponent<Button>().interactable = false;
        }
    }
    public void CheckAnswer()
    {
        for (int i = 0; i < questionInfo.options.Count; i++)
        {
            var option = questionInfo.options[i];
            var optionComponent = answerButtons[i].GetComponent<SafetylearningOption>();
            bool isSelected = optionComponent.isSelected;
            
            // 标注正确答案
            if (option.isCorrect)
            {
                optionComponent.SetCorrect(true);
            }
            // 标注选错的
            else if (isSelected)
            {
                optionComponent.SetCorrect(false);
            }
            // 其他只禁用交互
            else
            {
                optionComponent.GetComponent<Button>().interactable = false;
            }
        }
    }
}