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

public class BowCamera : MonoBehaviour
{
    private Vector3 eualrAngles = new Vector3();
    private float mouseSensitivity = 2f;
    public Camera cameraComp;
    // 用于禁止相机旋转外部接口
    public bool banRotate = false;
    public bool banCameraFieldOfView = false;
    public static BowCamera ins;

    void Awake() {
        ins = this;
    }

    void Update()
    {
        if (cameraComp && !banCameraFieldOfView) {
            cameraComp.fieldOfView = cameraFieldOfView;
        }

        if (GameMgr.ins.gameOver || banRotate) {
           return;
        }
        if (GameMgr.debugInEditor) {
            // this.eualrAngles.x = Mathf.Clamp(this.eualrAngles.x - this.mouseSensitivity * Input.GetAxis("Mouse Y"), -36, 36);
            // this.eualrAngles.y = Mathf.Clamp(this.eualrAngles.y + this.mouseSensitivity * Input.GetAxis("Mouse X"), -20, 20);   
            this.eualrAngles.x = this.eualrAngles.x - this.mouseSensitivity * Input.GetAxis("Mouse Y");
            this.eualrAngles.y = this.eualrAngles.y + this.mouseSensitivity * Input.GetAxis("Mouse X");   
            this.transform.eulerAngles = this.eualrAngles; 
            // if (EventSystem.current.IsPointerOverGameObject())
            // {
            //     return;
            // }
            // if (Input.GetMouseButtonDown(0)) {
            //     ArmBow.ins.mouseDown();
            // }
            // else if (Input.GetMouseButtonUp(0)) {
            //     ArmBow.ins.mouseUp();
            // }
        } else {
            this.transform.LookAt(GameObject.Find("CameraToLook/Point").transform);
            // if (Input.touches.Length == 1 && Input.touches[0].phase == TouchPhase.Moved)
            // {
            //     if (!EventSystem.current.IsPointerOverGameObject(Input.touches[0].fingerId))
            //     {
            //         this.eualrAngles.x = Mathf.Clamp(this.eualrAngles.x - Input.touches[0].deltaPosition.y * Time.deltaTime * 5, -36, 36);
            //         this.eualrAngles.y = Mathf.Clamp(this.eualrAngles.y + Input.touches[0].deltaPosition.x * Time.deltaTime * 5, -25, 25);   
            //         this.transform.eulerAngles = this.eualrAngles; 
            //     }
            // }
            // if (Input.touches.Length > 0)
            // {
            //     foreach (Touch touch in Input.touches)
            //     {
            //         if (EventSystem.current.IsPointerOverGameObject(touch.fingerId)) return;
            //     }
            //     ArmBow.ins.mouseDown();
            // } 
            // if (Input.touches.Length == 0)
            // {
            //     ArmBow.ins.mouseUp();
            // }
        }
    }

    float cameraFieldOfView = 60;

    public void SetCameraFieldOfView(float value)
    {
        cameraComp.fieldOfView = value;
    }

    public void setFieldOfView(float value, bool isPlus) {
        cameraFieldOfView = isPlus ? cameraFieldOfView + value : value;
    }

    public void updateFollowPullBow() {
        if (cameraFieldOfView > 40) {
            cameraFieldOfView -= 20 * Time.deltaTime;
        } else {
            cameraFieldOfView = 40;
        }
    }

    public void updateGiveUpPullBow() {
        if (cameraFieldOfView < 60) {
            cameraFieldOfView += 20 * Time.deltaTime;
        } else {
            cameraFieldOfView = 60;
        }
    }
}