using System.Collections.Generic;
using UnityEngine;

public class MovableFurniture : MonoBehaviour
{
    private List<Transform> children;
    private List<ObjectOutline> outlines;
    private Rigidbody _rigidbody;

    private Bounds combinedBounds;
    private Vector3 centerOffset;
    // Start is called before the first frame update
    void Start()
    {
        _rigidbody = GetComponent<Rigidbody>();
        children = new List<Transform>(GetComponentsInChildren<Transform>());
        outlines = new List<ObjectOutline>();
        foreach (Transform child in children)
        {
            var part = child.gameObject.AddComponent<MovableFurniturePart>();
            part.parent = this;
            var outline = child.gameObject.AddComponent<ObjectOutline>();
            outlines.Add(outline);
            outline.OutlineMode = ObjectOutline.Mode.OutlineAll;
            outline.OutlineColor = Color.yellow;
            outline.OutlineWidth = 5f;
            outline.enabled = false;
        }
        CalculateBounds();
    }

    // Update is called once per frame
    void Update()
    {

    }

    public void OnPointerClickUp()
    {
        if (_rigidbody != null)
        {
            _rigidbody.useGravity = true;
        }

    }
    public void OnPointerClickDown()
    {
        if (_rigidbody != null)
        {
            _rigidbody.useGravity = false;
        }

    }

    public void OnPointerEnter()
    {
        foreach (ObjectOutline outline in outlines)
        {
            /*child.OutlineMode = ObjectOutline.Mode.OutlineAll;
            child.OutlineColor = Color.yellow;
            child.OutlineWidth = 5f;*/
            outline.enabled = true;
        }
    }

    public void OnPointerExit()
    {
        foreach (ObjectOutline outline in outlines)
        {
            outline.enabled = false;
        }
    }

    public void SnapTo(Vector3 position, LayerMask layerMask)
    {
        Vector3 displacement = Vector3.zero;
        this.transform.position = position + centerOffset;
        Vector3[] directions = { Vector3.right, Vector3.left, Vector3.up, Vector3.down, Vector3.forward, Vector3.back };
        int[] extents = { 0, 0, 1, 1, 2, 2 };

        for (int i = 0; i < 6; i++)
        {
            Ray raycast = new Ray(transform.position - centerOffset - (directions[i] * combinedBounds.extents[extents[i]]), (directions[i] * combinedBounds.size[extents[i]]));
            RaycastHit hit;
            bool SnapbHit = Physics.Raycast(raycast, out hit, combinedBounds.size[extents[i]], layerMask);
            if (SnapbHit)
            {
                displacement[i / 2] -= (i % 2 == 1 ? -1 : 1) * (combinedBounds.size[extents[i]] - (hit.distance));
            }
        }

        /*Ray raycast = new Ray((transform.position - centerOffset) - (new Vector3(0, 0, combinedBounds.extents.z)), (new Vector3(0, 0, combinedBounds.size.z )));
        RaycastHit hit;
        bool SnapbHit = Physics.Raycast(raycast, out hit, combinedBounds.size.z, layerMask);
        if (SnapbHit)
        {
            Debug.Log("Hit");
            //displacement.z -= (0 % 2 == 1 ? -1 : 1) * (2*combinedBounds.size.z - (hit.distance));
            displacement.z -= (combinedBounds.size.z - (hit.distance));
        }*/
        Debug.Log(displacement);
        this.transform.Translate(displacement, Space.World);
    }


    void OnDrawGizmos()
    {
        // Draw a yellow sphere at the transform's position
        Gizmos.color = Color.red;
        Gizmos.DrawWireCube(transform.position - centerOffset, combinedBounds.size);
        Gizmos.DrawRay((transform.position - centerOffset) - (new Vector3(0, 0, combinedBounds.extents.z)), (new Vector3(0, 0, combinedBounds.size.z)));
    }

    private void CalculateBounds()
    {
        if (GetComponent<Renderer>() != null)
        {
            combinedBounds = GetComponent<Renderer>().bounds;
        }
        else
        {
            combinedBounds = new Bounds(transform.position, Vector3.zero);
        }
        var renderers = GetComponentsInChildren<Collider>();
        foreach (Collider child in renderers)
        {
            if (child != GetComponent<Renderer>())
            {
                if (combinedBounds == null)
                {
                    combinedBounds = child.bounds;
                }
                else
                {
                    combinedBounds.Encapsulate(child.bounds);
                }
            }
        }
        //combinedBounds = renderers[0].bounds;
        centerOffset = transform.position - combinedBounds.center;
    }
}