using System.Linq;
using UnityEngine;
using System.Collections;


public class HumanController : MonoBehaviour {
    protected Rigidbody2D _rb;
    protected Animator anim;
    public float maxWalkSpeed = 3.0f;
    public float maxRunSpeed = 6.0f;
    public float jumpAcceleration = 10;
    public LayerMask groundMask;
    public float groundCastRadius = 0.1f;
    public bool grounded;
    protected bool facingLeft;
    protected bool crouch;
    public bool Crouch {
        get { return crouch; }
        set { crouch = value; }
    }
    protected bool freeFall;
    protected Health health;
    public RandomSoundPlayer player;
    protected bool deadStateEnter;
    protected Inventory inventory;
    public ItemSocket[] sockets;
    protected bool gunArmed;

    private float armsStandOffset;
    public float ArmsStandOffset {
        get { return armsStandOffset; }
    }
    private float armsCrouchOffset;
    public float ArmsCrouchOffset {
        get { return armsCrouchOffset; }
    }
    public bool GunArmed {
        get { return gunArmed; }
    }
    public GameObject eyes;

    protected virtual void Start() {
        _rb = gameObject.GetComponent<Rigidbody2D>();
        anim = gameObject.GetComponent<Animator>();
        health = GetComponent<Health>();
        inventory = GetComponent<Inventory>();




        armsStandOffset = 2.7641f; 
        armsCrouchOffset = 1.6311f;

      

       
    }

    public void Awake() {
       /* var arms = GetSocket(ItemSocketType.Hands).place;
        var animator = GetComponent<Animator>();
        var clips = animator.runtimeAnimatorController.animationClips;

        var crouchGun = clips.First(v => v.name == "PlayerCrouchGunIdle");
        var standGun = clips.First(v => v.name == "PlayerStandWeaponIdle");

        standGun.SampleAnimation(gameObject, 0);
        armsStandOffset = arms.transform.position.y - transform.position.y;
        Debug.Log("armsStandOffset = " + armsStandOffset);

        crouchGun.SampleAnimation(gameObject, 0);
        armsCrouchOffset = arms.transform.position.y - transform.position.y;
        Debug.Log("armsCrouchOffset = " + armsCrouchOffset);*/


    }

    public void OnAnimationGunArmed(bool armed) {

    }

    public void OnDeadStateEnter() {
        deadStateEnter = true;

        inventory.DeleteAllItems();
    }


    public bool PrepareItem() {
        var socket = GetSocket(ItemSocketType.Hands);
        if (socket != null) {
            var item = socket.AttachedItem;
            if (item != null) {
                item.gameObject.SetActive(true);
                item.OnPrepareUse();
                gunArmed = true;
                return true;
            }
        }
        return false;
    }

    public void UnprepareItem() {
        var socket = GetSocket(ItemSocketType.Hands);
        if (socket != null) {
            var item = socket.AttachedItem;
            if (item != null) {
                item.gameObject.SetActive(false);
                item.OnEndUse();
                gunArmed = false;
            }
        }
    }

    void Flip() {
        facingLeft = !facingLeft;
        var s = transform.localScale;
        s.x *= -1;
        transform.localScale = s;
    }

    public void UpdateMovement(float targetSpeed) {
        float hspeed = _rb.velocity.x;

        float dV = targetSpeed - _rb.velocity.x;
        float A = dV / Time.fixedDeltaTime;//Mathf.Clamp(dV / Time.fixedDeltaTime, 0, 50);
        A = Mathf.Clamp(Mathf.Abs(A), 0, 50) * Mathf.Sign(A);

        float F = _rb.mass * A;

        float maxForce = 4500;
        F = Mathf.Clamp(F, -maxForce, maxForce);
        _rb.AddForce(Vector2.right * F);
    }

    void OnFootstep() {
        if (player != null) {
            player.Play();
        }
    }

    protected virtual void Update() {
        if (_rb.velocity.x > 0.02f && facingLeft) {
            Flip();
        }
        if (_rb.velocity.x < -0.02f && !facingLeft) {
            Flip();
        }


        anim.SetBool("lockAnyState", deadStateEnter);
        anim.SetBool("dead", health.Dead);
        anim.SetBool("gunArmed", gunArmed);
        anim.SetBool("FreeFall", freeFall);
        anim.SetBool("Grounded", grounded);
        anim.SetBool("Crouch", crouch);
        anim.SetFloat("hSpeed", _rb.velocity.x);
        anim.SetFloat("vSpeed", _rb.velocity.y);
        anim.SetFloat("hSpeedAbs", Mathf.Abs(_rb.velocity.x));
    }

    public ItemSocket GetSocket(ItemSocketType t) {
        return sockets.First(v => v.socketType == t);
    }

    protected virtual void FixedUpdate() {
        grounded = Physics2D.OverlapCircle(transform.position, groundCastRadius, groundMask) != null;
        float freeFallDistance = 1.0f;

        if (grounded) {
            freeFall = false;
        } else {
            if (!freeFall) {
                var c = Physics2D.CircleCast(transform.position, groundCastRadius, -Vector2.up, freeFallDistance, groundMask);

                bool p = (((c.point - (Vector2)transform.position).magnitude - groundCastRadius) > freeFallDistance);
                if (c.collider == null || p) {
                    if (Mathf.Abs(_rb.velocity.y) > 0.001f) {
                        freeFall = true;
                    }
                }
            }
        }
    }
}