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

public class FuzzyQuery : MonoBehaviour
{
    public Dropdown Dropdown;
    public InputField InputField;

    public bool ClearOnChange;

    /// <summary>
    /// 每个节点的高度
    /// </summary>
    public float itemHeight = 28;

    //public List<string> contents = new List<string>();

    public List<Dropdown.OptionData> optionDatas = new List<Dropdown.OptionData>();

    void Start()
    {
        InitContent();

        #region 编辑结束查询
        //InputField.onEndEdit.AddListener((value) =>
        //{
        //    int index;
        //    if (string.IsNullOrWhiteSpace(value))
        //    {
        //        if (!optionDatas.Count.Equals(Dropdown.options.Count))
        //        {
        //            Dropdown.ClearOptions();
        //            Dropdown.AddOptions(optionDatas);
        //        }

        //        InputField.text = Dropdown.options.Count > 0 ? Dropdown.options[0].text : "";
        //        index = optionDatas.FindIndex(x => x.text.Equals(InputField.text));
        //        OnValueChanged(index);
        //    }
        //    else if (null != optionDatas.Find(x => x.text.Equals(value))) //相等
        //    {
        //        if (!optionDatas.Count.Equals(Dropdown.options.Count))
        //        {
        //            Dropdown.ClearOptions();
        //            Dropdown.AddOptions(optionDatas);
        //        }

        //        Dropdown.RefreshShownValue();

        //        InputField.text = value;
        //        index = optionDatas.FindIndex(x => x.text.Equals(value));
        //        OnValueChanged(index);
        //    }
        //    else
        //    {
        //        Dropdown.ClearOptions();

        //        var x = optionDatas.FindAll(x => x.text.Contains(value));
        //        Dropdown.AddOptions(x);

        //        Dropdown.RefreshShownValue();

        //        InputField.text = Dropdown.options.Count > 0 ? Dropdown.options[0].text : "";
        //        index = optionDatas.FindIndex(x => x.text.Equals(InputField.text));
        //        OnValueChanged(index);
        //    }

        //    Dropdown.Show();

        //    RectTransform content = transform.Find("Dropdown List/Viewport/Content").GetComponent<RectTransform>();

        //    float contentHeight = Dropdown.options.Count * itemHeight;
        //    float dropHeight = transform.Find("Dropdown List").GetComponent<RectTransform>().sizeDelta.y;
        //    int dpcount = Dropdown.options.Count;

        //    float height = itemHeight * index;

        //    height = height < contentHeight - dropHeight ? height : contentHeight - dropHeight;
        //    content.anchoredPosition = new Vector2(0, height);
        //});

        //Dropdown.onValueChanged.AddListener((value) =>
        //{
        //    InputField.text = Dropdown.options[value].text;
        //    int index = optionDatas.FindIndex(x => x.text.Equals(InputField.text));
        //    OnValueChanged(index);

        //    if (ClearOnChange)
        //    {
        //        Dropdown.ClearOptions();
        //        Dropdown.AddOptions(optionDatas);
        //    }
        //});
        #endregion

        #region 实时查询
        

        InputField.onValueChanged.AddListener((value) =>
        {
            CancelInvoke("Check");
            if (string.IsNullOrWhiteSpace(value))
            {
                if (!optionDatas.Count.Equals(Dropdown.options.Count))
                {
                    Dropdown.ClearOptions();
                    Dropdown.AddOptions(optionDatas);
                }
            }
            else if (null != optionDatas.Find(x => x.text.Equals(value.Trim())))
            {
                if (!optionDatas.Count.Equals(Dropdown.options.Count))
                {
                    Dropdown.ClearOptions();
                    Dropdown.AddOptions(optionDatas);
                }

                Dropdown.RefreshShownValue();
                CancelInvoke("ShowDrop");
                Invoke("ShowDrop", 0.1f);
            }
            else
            {
                Dropdown.ClearOptions();

                var x = optionDatas.FindAll(x => x.text.Contains(value.Trim()));
                Dropdown.AddOptions(x);

                Dropdown.RefreshShownValue();
                CancelInvoke("ShowDrop");
                Invoke("ShowDrop", 0.1f);
            }
        });

        InputField.onEndEdit.AddListener((value) =>
        {
            Invoke("Check", 0.1f);
        });

        Dropdown.onValueChanged.AddListener((value) =>
        {
            InputField.SetTextWithoutNotify(Dropdown.options[value].text);
            int index = optionDatas.FindIndex(x => x.text.Equals(InputField.text));
            OnValueChanged(index);

            if (ClearOnChange)
            {
                Dropdown.ClearOptions();
                Dropdown.AddOptions(optionDatas);
            }
        });

        #endregion
    }
    //public void CancleCheck()
    //{
    //    CancelInvoke("Check");
    //}
    //public static FuzzyQuery instance;
    //private void OnEnable()
    //{
    //    instance = this;
    //}
    public void ShowDrop()
    {
        Dropdown.Show();
    }

    public void Check()
    {
        int _index = 0;
        bool _checked = Dropdown.options.Find(x => x.text.Equals(InputField.text)) != null;
        if (Dropdown.options.Count > 0 && !_checked)
        {
            InputField.SetTextWithoutNotify(Dropdown.options[0].text);
            _index = optionDatas.FindIndex(x => x.text.Equals(InputField.text));
        }
        if (_index == 0)
            return;
        OnValueChanged(_index);
    }


    public void InitContent()
    {
        var options = Dropdown.options;

        for (int i = 0; i < options.Count; i++)
        {
            optionDatas.Add(options[i]);
        }

        InputField.text = options[0].text;
    }

    #region External
    public void OnValueChanged(int index)
    {
        FailureTicketPanel.instance.OnFourthValueChanged(index);
    }
    #endregion
}