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


public class UI_ExamPanel : BasePanel
{
    public string jsonFileName = "题目"; // JSON文件名
    Root Root = new Root();


    public RectTransform Rigcontent;

    public ToggleGroup ToggleGroup;
    public UI_Topicitem UI_Topicitem;

    public Button PreviousQuestion_Btn;
    public Button NextQuestion_Btn;

    public Toggle[] toggles;

    public TextMeshProUGUI topicetype;
    public TextMeshProUGUI topicText;//题目

    public TextMeshProUGUI TopicType_Text;

    public TextMeshProUGUI[] topicLabel;//题目选项
    private List<Toggle> questionToggles = new List<Toggle>(); // 动态生成的题目Toggle列表
    private int curIndex;
    protected override void Awake()
    {
        base.Awake();
        int index = 0; // 用于跟踪当前是第几个Toggle
        Root = JsonManager.LoadData<Root>(jsonFileName);
        foreach (var tmxh in Root.choose)
        {
            var item = Instantiate(UI_Topicitem, Rigcontent);
            item.Init(tmxh.topiceNumber);
            Toggle toggle = item.GetControl<Toggle>("Toggle");
            toggle.group = ToggleGroup;
            questionToggles.Add(toggle);

            int currentIndex = index;
            toggle.onValueChanged.RemoveAllListeners();
            toggle.onValueChanged.AddListener((ison) =>
            {
                if (ison)
                {
                    Debug.Log($"Toggle选中:{currentIndex}");
                    fun(currentIndex);
                }
            });

            if (index == 0) toggle.isOn = true;
            index++;
            ToggleGroup.allowSwitchOff = false;
            UpdateQuestionUI();
        }

        //// 确保 ToggleGroup 状态正确
        //ToggleGroup.allowSwitchOff = false;
        //ToggleGroup.SetAllTogglesOff();
        //UpdateQuestionUI();
    }

    // 更新题目UI
    private void UpdateQuestionUI()
    {
        if (curIndex < 0 || curIndex >= Root.choose.Count) return;

        var currentQuestion = Root.choose[curIndex];

        // 更新题目类型
        bool isJudgment = currentQuestion.topicetype == "1";
        topicetype.text = isJudgment ? "[判断题]" : "[选择题]";
        TopicType_Text.text = isJudgment ? "判断题" : "选择题";

        // 显示/隐藏选项
        toggles[2].gameObject.SetActive(!isJudgment);
        toggles[3].gameObject.SetActive(!isJudgment);

        // 更新题目文本和选项
        topicText.text = currentQuestion.topiceName;
        topicLabel[0].text = currentQuestion.chooseA;
        topicLabel[1].text = currentQuestion.chooseB;
        topicLabel[2].text = currentQuestion.chooseC;
        topicLabel[3].text = currentQuestion.ChooseD;

        // 更新按钮状态
        PreviousQuestion_Btn.gameObject.SetActive(curIndex > 0);
        NextQuestion_Btn.gameObject.SetActive(curIndex < Root.choose.Count - 1);

        // 选中当前题目的Toggle
        if (questionToggles.Count > curIndex)
        {
            questionToggles[curIndex].isOn = true;
        }
    }

    private void SwitchQuestion(int offset)
    {
        int newIndex = curIndex + offset;
        if (newIndex < 0 || newIndex >= questionToggles.Count) return;

        curIndex = newIndex;
        questionToggles[curIndex].isOn = true;
        UpdateQuestionUI();
    }
    private void fun(int index_)
    {
        Debug.Log(index_);
        if (Root.choose[index_].topicetype == "1")
        {
            topicetype.text = "[判断题]";
            TopicType_Text.text = "判断题";
            toggles[2].gameObject.SetActive(false);
            toggles[3].gameObject.SetActive(false);
        }
        else
        {
            topicetype.text = "[选择题]";
            TopicType_Text.text = "选择题";
            for (int i = 0; i < toggles.Length; i++)
            {
                toggles[i].gameObject.SetActive(true);
            }
        }
        curIndex = index_;
        if (index_ == 0)
        {
            PreviousQuestion_Btn.gameObject.SetActive(false);
        }
        else if (index_ == Root.choose.Count - 1)
        {
            NextQuestion_Btn.gameObject.SetActive(false);
        }
        else
        {
            PreviousQuestion_Btn.gameObject.SetActive(true);
            NextQuestion_Btn.gameObject.SetActive(true);
        }


        for (int i = 0; i < Root.choose.Count; i++)
        {
            topicText.text = Root.choose[index_].topiceName;
            topicLabel[0].text = Root.choose[index_].chooseA;
            topicLabel[1].text = Root.choose[index_].chooseB;
            topicLabel[2].text = Root.choose[index_].chooseC;
            topicLabel[3].text = Root.choose[index_].ChooseD;
        };
    }


    public override void ShowMe()
    {
        base.ShowMe();
    }


    public override void HideMe()
    {
        base.HideMe();
    }
    protected override void OnClick(string btnName)
    {
        Debug.Log(btnName);
        switch (btnName)
        {
            case "retrun_Btn":
                Bootstrap.Instance.scenesManager.LoadSceneAsyn( "MenuScene", () =>
                {
                    Bootstrap.Instance.uiManager.ShowPanel<UI_SelectModePanel>(this, E_UI_Layer.Top, (panel) =>
                    {
                        Bootstrap.Instance.uiManager.ShowPanel<UI_BGPanel>(this, E_UI_Layer.Bot, (panel) =>
                        {
                            Debug.Log("UI_ExamPanel显示");
                            Bootstrap.Instance.uiManager.HidePanel<UI_ExamPanel>();
                            Bootstrap.Instance.uiManager.HidePanel<UI_MainTitlePanel>();
                        });
                    });
                });

                break;
            case "PreviousQuestion_Btn":
                SwitchQuestion(-1);
                break;
            case "NextQuestion_Btn":
                SwitchQuestion(1);
                break;
        }
    }
}