using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Random = System.Random;

public class PlayerController : MonoBehaviour
{
    public float walkSpeed;
    public float gravity;
    public GameObject model;
    public CharacterController cController;
    public Camera cam;
    public HerdController herd;

    public float speedMulitplier;
    private float randomizer;
    private float directionRandmoizer;

    private Vector2 receivedInput;
    private Vector3 moveDirection = Vector3.zero;
    private float moveDelta;
    private float lastMoveTime;

    // Start is called before the first frame update
    void Start()
    {
        speedMulitplier = UnityEngine.Random.Range(0.8f, 1.2f);
        cController = GetComponent<CharacterController>();
        randomizer = UnityEngine.Random.Range(0,10);
        cam = FindObjectOfType<Camera>();
        herd = FindObjectOfType<HerdController>();
    }

    public void SetMovement(Vector2 input)
    {
        receivedInput = input;
    }
    
    public void UpdatePosition()
    {
        moveDelta = Time.time - lastMoveTime;
        lastMoveTime = Time.time;

        float HorseX, HorseZ;
        HorseZ = receivedInput.y;
        HorseX = receivedInput.x;
        if (receivedInput.magnitude != 0)
        {
            if (Mathf.Abs(HorseZ) == Mathf.Min(Mathf.Abs(HorseZ), Mathf.Abs(HorseX)))
            {
                HorseZ += directionRandmoizer;
            }
            else
            {
                HorseX += directionRandmoizer;
            }
        }

        if (cController.isGrounded)
        {
            moveDirection = new Vector3(HorseX, 0, HorseZ);
            moveDirection *= walkSpeed * speedMulitplier;
        }

        
        
        moveDirection.y -= gravity * Time.deltaTime;

        cController.Move(moveDirection * Time.deltaTime);


        //float rotateTo = RotateObject(HorseX, HorseZ);
        //HorseZ *= Time.deltaTime * walkSpeed * speedMulitplier;
        //HorseX *= Time.deltaTime * walkSpeed * speedMulitplier;
        //
        //
        //transform.Translate(HorseX, 0, HorseZ);

        //Vector3 dir = Quaternion.Euler(-90, rotateTo, 0) * Vector3.forward;
        //model.transform.forward = dir;
        //LeanTween.rotateY(model, rotateTo, 0.1f);

    }

    public float RotateObject(float xInput, float zInput)
    {
        float to = model.transform.rotation.eulerAngles.y;
        //Debug.Log(to);
        if (receivedInput.x != 0 || receivedInput.y != 0)
        {
            if (zInput > 0 && xInput == 0)
                to = 0;
            else if (zInput < 0 && xInput == 0)
                to = 180;
            else if (zInput == 0 && xInput > 0)
                to = 90;
            else if (zInput == 0 && xInput < 0)
                to = 270;
            else if (zInput > 0 && xInput > 0)
                to = 45;
            else if (zInput < 0 && xInput > 0)
                to = 135;
            else if (zInput < 0 && xInput < 0)
                to = 225;
            else if (zInput > 0 && xInput < 0)
                to = 315;
        }

        return to;
    }

    public void MoveObject(float wait)
    {
        StartCoroutine(RandomWait(wait));
    }

    public IEnumerator RandomWait(float wait)
    {
        yield return new WaitForSeconds(UnityEngine.Random.Range(0, wait/2));

        if (cController.isGrounded)
        {
            Vector3 rotateDir = new Vector3(90 * Math.Sign(receivedInput.y), 0, -90 * Math.Sign(receivedInput.x));
            model.transform.Rotate(rotateDir, Space.World);
        }
    }

    public void DestroyOffCamera()
    {
        Vector3 viewPos = cam.WorldToViewportPoint(transform.position);
        if (viewPos.y < -0.1)
            herd.RemoveHorse(this);
    }

    // Update is called once per frame
    void Update()
    {
        speedMulitplier = (Mathf.Sin(Time.time * UnityEngine.Random.Range(0.9f,1.1f) + randomizer) + 2);
        directionRandmoizer = Mathf.Cos(Time.time + randomizer / 2) * 0.3f;
        UpdatePosition();
        DestroyOffCamera();
    }
}