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

public class GameMenuView : MonoBehaviour
{
    [SerializeField] GameObject funcView;
    Button[] funcItemButtons;
    [SerializeField] Text keyCodeText;

    void Awake()
    {
        funcItemButtons = funcView.transform.Find("Items").GetComponentsInChildren<Button>();
        for (int i = 0; i < funcItemButtons.Length; i++)
        {
            int id = i;
            funcItemButtons[i].onClick.AddListener(delegate() {
                SelectItem(id, true);
                ConfirmItem(id);
            });
        }
        SelectItem(0, true);
    }

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.UpArrow))
	    {
	        SelectItem(-1);
            AudioMgr.ins.PlayBtn();
	    }
        if (Input.GetKeyDown(KeyCode.DownArrow))
	    {
	        SelectItem(+1);
            AudioMgr.ins.PlayBtn();
	    }
        if (Input.GetKeyDown(KeyCode.JoystickButton0) || Input.GetKeyDown(KeyCode.Return))
	    {
	        if (funcView.activeSelf) {
                ConfirmItem(funcItemIndex);
            }
            if (recordItemIns && recordItemOkBtn.interactable) {
                recordItemOkBtn.onClick.Invoke();
            }
	    }
        if (Input.GetKeyDown(KeyCode.Escape))
	    {
	        if (recordItemIns && recordItemBackBtn.interactable) {
                recordItemBackBtn.onClick.Invoke();
            }
	    }
    }

    void OnGUI()
    {
        if (Input.anyKeyDown)
		{
			Event e = Event.current;
			if (e.isKey)
			{
				keyCodeText.text = string.Format("按下的键值：[{0}]", e.character);
			}
		}
    }

    void ShowFuncView(bool active) 
    {
        funcView.SetActive(active);
    }

    int funcItemIndex = 0;

    void SelectItem(int deltaIndex, bool isFixed = false) 
    {
        if (!funcView.activeSelf) return;
        funcItemIndex += deltaIndex;
        if (funcItemIndex < 0) {
            funcItemIndex = funcItemButtons.Length - 1;
        } else if (funcItemIndex >= funcItemButtons.Length) {
            funcItemIndex = 0;
        }
        if (isFixed) funcItemIndex = deltaIndex;
        for (int i = 0; i < funcItemButtons.Length; i++) {
            funcItemButtons[i].GetComponentInChildren<Image>().color = i == funcItemIndex ? Color.yellow : Color.white;
            Text ttt = funcItemButtons[i].GetComponentInChildren<Text>();
            if (ttt) ttt.color = i == funcItemIndex ? Color.yellow : Color.white;
            
        }
    }   


    void ConfirmItem(int id) 
    {
        if (!funcView.activeSelf) return;
        AudioMgr.ins.PlayBtn();
        switch (id)
        {
            case 1:
                ShowFuncView(false);
                GameObject v1 = DeviceCalibrateView.Create(DeviceCalibrateItem.Gyr);
                RecordItem(v1);
                break;
            case 2:
                ShowFuncView(false);
                GameObject v2 = DeviceCalibrateView.Create(DeviceCalibrateItem.Mag);
                RecordItem(v2);
                break;
            case 3:
                AimHandler.ins.DoIdentity();
                break;
            case 4:
                // if (LoginMgr.myUserInfo.arrowAccValue == 16) {
                //     LoginMgr.myUserInfo.arrowAccValue = 64;
                // } else {
                //     LoginMgr.myUserInfo.arrowAccValue = 16;
                // }
                // LoginMgr.myUserInfo.Save();
                // RenderArrowAcc();
                break;
            case 0:
                Application.Quit();
                break;
        }
    }

    // public void RenderArrowAcc()
    // {
    //     funcItemButtons[4].GetComponentInChildren<Text>().text = LoginMgr.myUserInfo.arrowAccValue + "G使用中";
    // }

    GameObject recordItemIns;
    Button recordItemOkBtn;
    Button recordItemBackBtn;

    void RecordItem(GameObject itemIns) 
    {   
        ClearRecordItem();
        recordItemIns = itemIns;
        (recordItemOkBtn, recordItemBackBtn) = itemIns.GetComponent<DeviceCalibrateView>().GetInterfaceBtns();
        recordItemBackBtn.onClick.AddListener(delegate() {
            ShowFuncView(true);
        });
    }

    void ClearRecordItem()
    {
        if (recordItemIns) Destroy(recordItemIns);
    }
}