using SHADE;
using SHADE_Scripting;
using SHADE_Scripting.Audio;
using System;
using System.Collections.Generic;
using static PlayerController;
using static Item;

public class PickAndThrow : Script
{
  public Vector3 throwForce = new Vector3(10.0f, 8.0f, 10.0f);
  public Vector3 cameraArmOffSet = new Vector3(0.0f, 0.25f, 0.0f);
  public GameObject item { get; set; }
  public float delayTimer = 1.0f;
  public float aimingLength = 1.5f;

  private float timer;
  private PlayerController pc;
  private Transform itemTransform;
  private RigidBody itemRidigBody;
  private Collider itemCollider;
  private Item itemScript;
  private Transform raccoonHoldLocation;
  public ThirdPersonCamera tpc { get; set; }
  private float lastXDir;
  private float lastZDir;
  private bool inRange = false;
  public bool throwItem = false;
  public Vector3 prevTargetOffSet { get; set; }

  [Tooltip("Lenght of ray")]
  public float rayDistance = 1;

  [Tooltip("Height of ray")]
  public float rayHeight = 0.1f;

  [NonSerialized]
  private TweenThread camArmTween;
  [NonSerialized]
  private TweenThreadVec3 offSetCamTween;
  [NonSerialized]
  private TweenThread FOVTween;

  public float lerpPickUpDuration = 0.75f;
  private float pickUptimer = 0.0f;
  private bool foodHoldReach = false;

  public float tweenAimDuration = 0.3f;
  private bool camTweenUpdate = false;

  public float aimingFOV = 15.0f;

  private TrajectoryRenderable trajComp;
  private Vector3 currThrowForce;
  private float currentItemMass;

  public uint trajMaxSteps = 50;
  public float trajTimeSteps = 0.03f;


  protected override void awake()
  {
    pc = GetScript<PlayerController>();
    if (!pc)
      Debug.LogError("PLAYER CONTROLLER EMPTY");

    raccoonHoldLocation = GetComponentInChildren<Transform>();
    if (!raccoonHoldLocation)
      Debug.LogError("CHILD EMPTY");

    tpc = GetScriptInChildren<ThirdPersonCamera>();
    if (!tpc)
      Debug.LogError("TPC EMPTY");

    AudioHandler.audioClipHandlers["SFXThrowLarge"] = Audio.CreateAudioClip("event:/Raccoon/raccoon_throw_large");
    AudioHandler.audioClipHandlers["SFXThrowMedium"] = Audio.CreateAudioClip("event:/Raccoon/raccoon_throw_medium");
    AudioHandler.audioClipHandlers["SFXThrowSmall"] = Audio.CreateAudioClip("event:/Raccoon/raccoon_throw_small");

    timer = delayTimer;

    trajComp = GetComponentInChildren<TrajectoryRenderable>();
    if (!trajComp)
      Debug.LogError("TrajectoryRenderable MISSING");
  }

  protected override void start()
  {
  }
  protected override void update()
  {
    if (GameManager.Instance.GamePause || !GameManager.Instance.stealFoodPopUpDone)
    {
      return;
    }

    if (timer <= delayTimer)
      timer += Time.DeltaTimeF;

    CalculateDir();
    CastRay();

    if (camTweenUpdate)
    {
      pc.camArm.TargetOffset = offSetCamTween.GetValue();
      pc.camArm.ArmLength = camArmTween.GetValue();
      pc.cam.FOV = FOVTween.GetValue();

      if (offSetCamTween.IsCompleted() && camArmTween.IsCompleted() && FOVTween.IsCompleted())
        camTweenUpdate = false;
    }

    if (pc && itemRidigBody && itemTransform && itemCollider)
    {
      if (pc.holdItem)
      {
        TweenFood();
        itemTransform.LocalRotation = pc.tranform.LocalRotation;
        itemRidigBody.ClearForces();
        itemRidigBody.ClearTorque();
        itemRidigBody.LinearVelocity = Vector3.Zero;
        itemRidigBody.AngularVelocity = Vector3.Zero;

        if (Input.GetMouseButtonDown(Input.MouseCode.LeftButton))
        {
          pc.isAiming = true;
          TweenAimCamArm(true);
        }

        if (Input.GetMouseButtonUp(Input.MouseCode.LeftButton) && pc.isAiming)
        {
          if (itemScript.currCategory == ItemCategory.LIGHT)
            AudioHandler.audioClipHandlers["SFXThrowSmall"].Play();
          else if (itemScript.currCategory == ItemCategory.MEDIUM)
            AudioHandler.audioClipHandlers["SFXThrowMedium"].Play();
          else
            AudioHandler.audioClipHandlers["SFXThrowLarge"].Play();

          itemRidigBody.IsGravityEnabled = true;
          itemCollider.GetCollisionShape(0).IsTrigger = false;
          pc.isAiming = false;
          TweenAimCamArm(false);
          pc.holdItem = false;
          foodHoldReach = false;
          inRange = false;
          throwItem = true;
          PlayThrowAnimation();
          timer = 0.0f;
        }

        if (Input.GetMouseButtonDown(Input.MouseCode.RightButton) && !pc.isAiming)
        {
          pc.holdItem = false;
          foodHoldReach = false;
          inRange = false;
          itemRidigBody.IsGravityEnabled = true;
          itemCollider.GetCollisionShape(0).IsTrigger = false;
          ResetItemObject();
        }

        if (Input.GetMouseButtonDown(Input.MouseCode.RightButton) && pc.isAiming)
        {
          pc.isAiming = false;
          pc.cam.FOV = Settings.cameraFOV;
          TweenAimCamArm(false);
        }

      }
      else if (!pc.holdItem)
      {
        itemRidigBody.IsGravityEnabled = true;
        itemCollider.GetCollisionShape(0).IsTrigger = false;
      }
    }

    if (timer > delayTimer && pc && !pc.holdItem && inRange && Input.GetMouseButtonDown(Input.MouseCode.LeftButton))
    {
      if (pc.currentState == RaccoonStates.WALKING || pc.currentState == RaccoonStates.IDLE)
      {
        pc.holdItem = true;
        RetrieveItemComponets();
        PlayPickUpAnimation();
      }
    }

    if (pc.isAiming && itemScript)
    {
      if (itemScript.currCategory == ItemCategory.LIGHT)
        currThrowForce = new Vector3(throwForce.x * lastXDir, throwForce.y + (throwForce.y * GetPitchRatioRange()), throwForce.z * lastZDir) * 0.2f;
      else if (itemScript.currCategory == ItemCategory.MEDIUM)
        currThrowForce = new Vector3(throwForce.x * lastXDir, throwForce.y + (throwForce.y * GetPitchRatioRange()), throwForce.z * lastZDir) * 0.75f;
      else
        currThrowForce = new Vector3(throwForce.x * lastXDir, throwForce.y + (throwForce.y * GetPitchRatioRange()), throwForce.z * lastZDir);

      if (pc.holdItem && trajComp)
        trajComp.SimulateTrajectory(item.EntityId, currentItemMass, currThrowForce, trajTimeSteps, trajMaxSteps);
    }
  }

  protected override void fixedUpdate()
  {
    if (GameManager.Instance.GamePause || !GameManager.Instance.stealFoodPopUpDone)
    {
      return;
    }

    if (throwItem && itemRidigBody && pc)
    {
      itemRidigBody.AddForce(currThrowForce);
      itemRidigBody.LinearVelocity += pc.rb.LinearVelocity;
      throwItem = false;
      ResetItemObject();
    }
  }

  public void SetItemGravityBack()
  {
    if(itemRidigBody)
      itemRidigBody.IsGravityEnabled = true;
    if(itemCollider)
    itemCollider.GetCollisionShape(0).IsTrigger = false;
  }

  public void ResetItemObject()
  {
    itemRidigBody = null;
    itemTransform = null;
    itemCollider = null;
    itemScript = null;
    item = new GameObject();
  }

  private void RetrieveItemComponets()
  {
    //get the transform of the given item
    if (item.GetScript<Item>() && !itemTransform && !itemRidigBody)
    {
      itemRidigBody = item.GetComponent<RigidBody>();
      if (!itemRidigBody)
        Debug.Log("Item rb EMPTY");
      else 
      {
        currentItemMass = itemRidigBody.Mass;
        itemRidigBody.IsGravityEnabled = false;
      }

      itemTransform = item.GetComponent<Transform>();
      if (!itemTransform)
        Debug.Log("Item transform EMPTY");
      else
      {
        itemTransform.LocalEulerAngles = Vector3.Zero;
      }

      itemCollider = item.GetComponent<Collider>();
      if (!itemCollider)
        Debug.Log("Item collider EMPTY");
      else
      {
        itemCollider.GetCollisionShape(0).IsTrigger = true;
      }

      itemScript = item.GetScript<Item>();
      if(!itemScript)
        Debug.Log("Item script EMPTY");
    }
  }

  private void CalculateDir()
  {
    if (pc && pc.cam)
    {
      Vector3 camerAixs = pc.cam.GetForward();
      camerAixs.y = 0;
      camerAixs.Normalise();
      lastXDir = camerAixs.x;
      lastZDir = camerAixs.z;
    }
  }

  private void CastRay()
  {
    if (pc != null)
    {
      Vector3 dirNor = pc.tranform.Forward;
      Vector3 playerRayPos = pc.tranform.GlobalPosition;
      playerRayPos.y += rayHeight;
      dirNor.Normalise();
      List<RaycastHit> rayList1 = Physics.Raycast(new Ray(playerRayPos, Vector3.RotateY(dirNor, SHADE.Math.DegreesToRadians(25.0f))), rayDistance, false, (ushort)65535);
      List<RaycastHit> rayList2 = Physics.Raycast(new Ray(playerRayPos, Vector3.RotateY(dirNor, SHADE.Math.DegreesToRadians(-25.0f))), rayDistance, false, (ushort)65535);
      List<RaycastHit> rayList3 = Physics.Raycast(new Ray(playerRayPos, Vector3.RotateY(dirNor, SHADE.Math.DegreesToRadians(12.5f))), rayDistance, false, (ushort)65535);
      List<RaycastHit> rayList4 = Physics.Raycast(new Ray(playerRayPos, Vector3.RotateY(dirNor, SHADE.Math.DegreesToRadians(-12.5f))), rayDistance, false, (ushort)65535);
      List<RaycastHit> rayList5 = Physics.Raycast(new Ray(playerRayPos, dirNor), rayDistance , false, (ushort)65535);

      if (rayList1.Count > 0)
      {
        RaycastHit ray1 = rayList1[0];
        inRange = CheckForItem(ray1);
        return;
      }
      else if (rayList2.Count > 0)
      {
        RaycastHit ray2 = rayList2[0];
        inRange = CheckForItem(ray2);
        return;
      }
      else if (rayList3.Count > 0)
      {
        RaycastHit ray3 = rayList3[0];
        inRange = CheckForItem(ray3);
        return;
      }
      else if (rayList4.Count > 0)
      {
        RaycastHit ray4 = rayList4[0];
        inRange = CheckForItem(ray4);
        return;
      }
      else if (rayList5.Count > 0)
      {
        RaycastHit ray5 = rayList5[0];
        inRange = CheckForItem(ray5);
        return;
      }
      else
      {
        inRange = false;
      }
    }
  }

  private bool CheckForItem(RaycastHit ray)
  {
    if (ray.Hit)
    {
      if (ray.Other.Value.GetScript<Item>() && !pc.holdItem)
      {
        item = ray.Other.Value;
        return true;
      }
      else
        return false;
    }
    return false;
  }

  private float GetPitchRatioRange()
  {
    return (pc.camArm.Pitch - tpc.pitchUpperClamp) / (tpc.pitchLowerClamp - tpc.pitchUpperClamp);
  }

  private void PlayPickUpAnimation()
  {
    if (PlayerAnimations.Instance)
    {
      PlayerAnimations.Instance.playerAnimator.PlayOneShot(PlayerAnimations.Instance.playerPickUpClip);
      PlayerAnimations.Instance.playerAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerPickUpClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.playerAnimator.Play(PlayerAnimations.Instance.playerCarryWalkClip);
          else
            PlayerAnimations.Instance.playerAnimator.Play(PlayerAnimations.Instance.playerCarryIdleClip);
        }
      });

      PlayerAnimations.Instance.BagAnimator.PlayOneShot(PlayerAnimations.Instance.playerPickUpClip);
      PlayerAnimations.Instance.BagAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerPickUpClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.BagAnimator.Play(PlayerAnimations.Instance.playerCarryWalkClip);
          else
            PlayerAnimations.Instance.BagAnimator.Play(PlayerAnimations.Instance.playerCarryIdleClip);
        }
      });

      PlayerAnimations.Instance.silhoPlayerAnimator.PlayOneShot(PlayerAnimations.Instance.playerPickUpClip);
      PlayerAnimations.Instance.silhoPlayerAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerPickUpClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.silhoPlayerAnimator.Play(PlayerAnimations.Instance.playerCarryWalkClip);
          else
            PlayerAnimations.Instance.silhoPlayerAnimator.Play(PlayerAnimations.Instance.playerCarryIdleClip);
        }
      });

      PlayerAnimations.Instance.silhoBagAnimator.PlayOneShot(PlayerAnimations.Instance.playerPickUpClip);
      PlayerAnimations.Instance.silhoBagAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerPickUpClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.silhoBagAnimator.Play(PlayerAnimations.Instance.playerCarryWalkClip);
          else
            PlayerAnimations.Instance.silhoBagAnimator.Play(PlayerAnimations.Instance.playerCarryIdleClip);
        }
      });
    }
  }

  private void PlayThrowAnimation()
  {
    if (PlayerAnimations.Instance)
    {
      PlayerAnimations.Instance.playerAnimator.PlayOneShot(PlayerAnimations.Instance.playerThrowClip);
      PlayerAnimations.Instance.playerAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerThrowClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.playerAnimator.Play(PlayerAnimations.Instance.playerWalkClip);
          else
            PlayerAnimations.Instance.playerAnimator.Play(PlayerAnimations.Instance.playerIdleClip);
        }
      });

      PlayerAnimations.Instance.BagAnimator.PlayOneShot(PlayerAnimations.Instance.playerPickUpClip);
      PlayerAnimations.Instance.BagAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerThrowClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.BagAnimator.Play(PlayerAnimations.Instance.playerWalkClip);
          else
            PlayerAnimations.Instance.BagAnimator.Play(PlayerAnimations.Instance.playerIdleClip);
        }
      });

      PlayerAnimations.Instance.silhoPlayerAnimator.PlayOneShot(PlayerAnimations.Instance.playerPickUpClip);
      PlayerAnimations.Instance.silhoPlayerAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerThrowClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.silhoPlayerAnimator.Play(PlayerAnimations.Instance.playerWalkClip);
          else
            PlayerAnimations.Instance.silhoPlayerAnimator.Play(PlayerAnimations.Instance.playerIdleClip);
        }
      });

      PlayerAnimations.Instance.silhoBagAnimator.PlayOneShot(PlayerAnimations.Instance.playerPickUpClip);
      PlayerAnimations.Instance.silhoBagAnimator.OnClipFinished.RegisterAction((x) =>
      {
        if (x.FinishedClip == PlayerAnimations.Instance.playerThrowClip)
        {
          if (pc.isMoveKeyPress)
            PlayerAnimations.Instance.silhoBagAnimator.Play(PlayerAnimations.Instance.playerWalkClip);
          else
            PlayerAnimations.Instance.silhoBagAnimator.Play(PlayerAnimations.Instance.playerIdleClip);
        }
      });
    }
  }

  private void TweenFood()
  {

    if (!foodHoldReach)
    {
      pickUptimer += Time.DeltaTimeF;
      itemTransform.LocalPosition = Vector3.Lerp(itemTransform.LocalPosition, raccoonHoldLocation.GlobalPosition, pickUptimer / lerpPickUpDuration);
    }
    else
      itemTransform.LocalPosition = raccoonHoldLocation.GlobalPosition;

    if (pickUptimer >= lerpPickUpDuration)
    {
      foodHoldReach = true;
      pickUptimer = 0.0f;
    }
  }

  public void TweenAimCamArm(bool aim)
  {

    if (aim)
    {
      offSetCamTween = TweenManager.CreateTweenThreadVec3(tweenAimDuration, pc.camArm.TargetOffset, cameraArmOffSet, EASING_METHOD.EASE_IN_SINE);
      camArmTween = TweenManager.CreateTweenThread(tweenAimDuration, pc.camArm.ArmLength, aimingLength, EASING_METHOD.EASE_IN_SINE);
      FOVTween = TweenManager.CreateTweenThread(tweenAimDuration, pc.cam.FOV, Settings.cameraFOV + aimingFOV, EASING_METHOD.EASE_IN_SINE);
    }
    else
    {
      offSetCamTween = TweenManager.CreateTweenThreadVec3(tweenAimDuration, pc.camArm.TargetOffset, prevTargetOffSet, EASING_METHOD.EASE_IN_SINE);
      camArmTween = TweenManager.CreateTweenThread(tweenAimDuration, pc.camArm.ArmLength, tpc.armLength, EASING_METHOD.EASE_IN_SINE);
      FOVTween = TweenManager.CreateTweenThread(tweenAimDuration, pc.cam.FOV, Settings.cameraFOV , EASING_METHOD.EASE_IN_SINE);
    }
    camTweenUpdate = true;

  }

}