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

public class YeetController : MonoBehaviour
{
    public GameObject parent { get; set; }

    public float yeetVelocity = 10f;
    public float yeetDuration = 2f;

    public enum YeetState { Unheld, Held, Yeeting };
    public YeetState yeetState { get; private set; } = YeetState.Unheld;

    private GameObject _child;
    private float _time;

    private GameObject m_child;
    private GameObject m_body;

    private void Awake()
    {
        m_body = this.gameObject;
    }

    public void Hold(GameObject child)
    {
        _child = child;
        _child.transform.parent = parent.transform;
        yeetState = YeetState.Held;
    }

    public void Yeet()
    {
        _child.transform.parent = null;
        _child.transform.rotation = parent.transform.rotation;
        _child.GetComponent<Rigidbody>().velocity = _child.transform.forward * yeetVelocity + _child.transform.up * yeetVelocity;
        yeetState = YeetState.Yeeting;
        _time = yeetDuration;
    }

    // Start is called before the first frame update
    void Start()
    {
 
    }

    // Update is called once per frame
    void Update()
    {
        switch(yeetState)
        {
            case YeetState.Yeeting:
                //_child.transform.position += _child.transform.forward * yeetVelocity * Time.deltaTime;
                _time -= Time.deltaTime;

                if(_time <= 0f)
                {
                    Debug.Log("YeetController.Update: Yeet finished");
                    yeetState = YeetState.Unheld; 
                }
                break;
            case YeetState.Held:
                break;
            case YeetState.Unheld:
                _child = null;
                break;
        }
    }

    private void OnTriggerEnter(Collider collider)
    {
        Debug.Log("PlayerInputController.OnTriggerEnter: arrived");
        m_child = collider.gameObject;
    }

    private void OnTriggerExit(Collider collider)
    { 
        m_child = null;
    }

    private void OnYeet()
    {
        parent = m_body;
        switch (yeetState)
        {
            case YeetController.YeetState.Unheld:
                if(m_child)
                    Hold(m_child);
                // Grab nearest baby
                break;
            case YeetController.YeetState.Held:
                Yeet();
                // Yeet baby
                break;
            case YeetController.YeetState.Yeeting:
                // Cooldown?
                break;
        }
    }
}