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

/*
按下自动校准键出现倒计时3秒，同时伴有文字提示用户“三秒后即将开始校准，
请扶稳弓箭。”倒计时3秒后出现一个进度条也是三秒，用户在3秒内自己尽量扶稳弓即可，
进度条完成后，取一个平均值作为校准值。
*/
public class AutoResetView : MonoBehaviour
{
    public static AutoResetView ins;
    public static Action onInstantiate;

    public static void DoIdentity() {
        if (SceneManager.GetActiveScene().name.StartsWith("Game")) {
            Instantiate(Resources.Load<GameObject>("Prefabs/Views/AutoResetView"));
        } 
        else if (SceneManager.GetActiveScene().name.StartsWith("DuckHunter")) {
            Instantiate(Resources.Load<GameObject>("Prefabs/Views/AutoResetView"));
        }
        else if (SceneManager.GetActiveScene().name.StartsWith("WildAttack"))
        {
            Instantiate(Resources.Load<GameObject>("Prefabs/Views/AutoResetView"));
        }
        else if (SceneManager.GetActiveScene().name.StartsWith("FruitMaster"))
        {
            Instantiate(Resources.Load<GameObject>("Prefabs/Views/AutoResetView"));
        }
        else {
            AimHandler.ins.DoIdentity();
        }
    }
    
    void Awake() {
        if (ins) {
            Destroy(gameObject);
            return;
        }
        ins = this;
    }

    void Start() {
        if (SceneManager.GetActiveScene().name == "Game") {
            (transform.Find("IconHumanShoot") as RectTransform).anchoredPosition = new Vector2(-193, -85);
        }
        GetGuideTip().textFormatArgs = new object[]{showedPrepareTime = Mathf.CeilToInt(prepareTime)};
        GetGuideTip().ApplyToText();
        ChallengeTargetForResetView.Show();
        onInstantiate?.Invoke();
    }

    public Action action_OnDestroy;
    void OnDestroy() {
        if (ins == this) ins = null;
        action_OnDestroy?.Invoke();
    }

    float prepareTime = 3;
    int showedPrepareTime;

    void Update() {
        prepareTime -= Time.deltaTime;
        if (prepareTime <= 0) {
            try {
                AimHandler.ins.DoIdentity();
            }
            catch (Exception) {}
            Destroy(gameObject);
        } else {
            int curTime = Mathf.CeilToInt(prepareTime);
            if (showedPrepareTime != curTime) {
                showedPrepareTime = curTime;
                TextAutoLanguage2 gt = GetGuideTip();
                gt.textFormatArgs[0] = Mathf.CeilToInt(prepareTime);
                gt.ApplyToText();
            }
        }
    }

    TextAutoLanguage2 _guideTip;
    TextAutoLanguage2 GetGuideTip() {
        if (_guideTip == null) _guideTip = transform.Find("FrameTip").GetComponentInChildren<TextAutoLanguage2>();
        return _guideTip;
    }
}