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

public class Blueprint : MonoBehaviour
{
    public GameObject Prefab_Realization;

    public void Init()
    {
        GameObject examp = Instantiate(Prefab_Realization);
        gameObject.SetMeshRendererActive(false);
        examp.CopyTransform(gameObject);
        initParent = transform.parent;
    }

    public bool FixedPosX, FixedPosY, FixedPosZ, FixedRotX, FixedRotY, FixedRotZ;

    public Vector3 fixPos, fixRot;

    /// <summary>
    /// 固定位置
    /// </summary>
    public bool FixedLocation;
    private Vector3 fixedPos;
    /// <summary>
    /// 结束编辑
    /// </summary>
    public bool EndEditor;
    private bool mouseMoved;

    /// <summary>
    /// 初始化的父物体
    /// </summary>
    private Transform initParent;

    /// <summary>
    /// 场景触发器
    /// </summary>
    public string SceneColliderName;
    private bool colliderStay;
    private Transform colliderTransform;
    private Optional colliderOptional;

    private void Update()
    {

        if (!FixedLocation)
        {
            ConfirmPosition();
        }
        else
        {
            ConfirmRotation();
        }

        if (FixedLocation)
            transform.position = fixedPos;
        else
        {
            Vector3 temp = transform.position;
            if (FixedPosX)
            {
                temp.x = fixPos.x;
            }
            if (FixedPosY)
            {
                temp.y = fixPos.y;
            }
            if (FixedPosZ)
            {
                temp.z = fixPos.z;
            }
            transform.position = temp;
        }

        if (EndEditor)
        { }
        else
        {
            Vector3 temp = transform.eulerAngles;
            if (FixedRotX)
            {
                temp.x = fixRot.x;
            }
            if (FixedRotY)
            {
                temp.y = fixRot.y;
            }
            if (FixedRotZ)
            {
                temp.z = fixRot.z;
            }
            transform.eulerAngles = temp;
        }
    }

    private void OnTriggerEnter(Collider other)
    {
        if (other.name.Equals(SceneColliderName))
        {
            colliderTransform = other.transform;
            colliderOptional = other.GetComponentInParent<Optional>();
            colliderStay = true;
        }
    }

    private void OnTriggerExit(Collider other)
    {
        if (other.name.Equals(SceneColliderName))
        {
            colliderTransform = null;
            colliderOptional = null;
            colliderStay = false;
        }
    }

    private void OnMouseEnter()
    {
        if (!EndEditor) return;
        if (colliderOptional == null) colliderOptional = colliderTransform.GetComponentInParent<Optional>();
        if (colliderOptional == null) return;
        colliderOptional.MouseEnter();
    }

    private void OnMouseDown()
    {
        if (!EndEditor) return;
        if (colliderOptional == null) return;
        colliderOptional.MouseDown();
    }

    private void OnMouseExit()
    {
        if (!EndEditor) return;
        if (colliderOptional == null) return;
        colliderOptional.MouseExit();
    }

    /// <summary>
    /// 确认位置
    /// </summary>
    public void ConfirmPosition()
    {
        if (!string.IsNullOrEmpty(SceneColliderName) && !colliderStay) return;
        if (Input.GetMouseButtonUp(0))
        {
            fixedPos = transform.position;
            FixedLocation = true;
        }
    }

    /// <summary>
    /// 确认角度
    /// </summary>
    public void ConfirmRotation()
    {
        if (!EndEditor)
        {
            if (Input.GetMouseButtonDown(0))
            {
                mouseMoved = false;
            }
            //确定旋转角度
            if (Input.GetMouseButtonUp(0) && !mouseMoved)
            {
                EndEditor = true;
                transform.parent = colliderTransform.parent;
                colliderTransform.GetComponentInParent<Optional>().SolveIssue(this.gameObject);
            }
            //更改旋转角度
            if (Input.GetMouseButton(0))
            {
                var mx = Input.GetAxis("Mouse X");
                if (mx != 0) mouseMoved = true;
                Vector3 eulerang = transform.eulerAngles;
                eulerang.y += mx;
                transform.eulerAngles = eulerang;
            }

            CancelConfirmation();
        }
    }

    /// <summary>
    /// 取消确认
    /// </summary>
    public void CancelConfirmation()
    {
        //移动或旋转角色时退出固定位置
        if (Input.GetMouseButtonDown(1) || Input.GetAxis("Horizontal") != 0 || Input.GetAxis("Vertical") != 0)
            FixedLocation = false;
    }
}