using System;
using RoR2;
using RoR2.UI;
using UnityEngine;

namespace EntityStates.Loader;

public class BaseChargeFist : BaseSkillState
{
	private class ArcVisualizer : IDisposable
	{
		private readonly Vector3[] points;

		private readonly float duration;

		private readonly GameObject arcVisualizerInstance;

		private readonly LineRenderer lineRenderer;

		public ArcVisualizer(GameObject arcVisualizerPrefab, float duration, int vertexCount)
		{
			arcVisualizerInstance = UnityEngine.Object.Instantiate(arcVisualizerPrefab);
			lineRenderer = arcVisualizerInstance.GetComponent<LineRenderer>();
			lineRenderer.positionCount = vertexCount;
			points = new Vector3[vertexCount];
			this.duration = duration;
		}

		public void Dispose()
		{
			EntityState.Destroy(arcVisualizerInstance);
		}

		public void SetParameters(Vector3 origin, Vector3 initialVelocity, float characterMaxSpeed, float characterAcceleration)
		{
			arcVisualizerInstance.transform.position = origin;
			if (!lineRenderer.useWorldSpace)
			{
				Vector3 eulerAngles = Quaternion.LookRotation(initialVelocity).eulerAngles;
				eulerAngles.x = 0f;
				eulerAngles.z = 0f;
				Quaternion rotation = Quaternion.Euler(eulerAngles);
				arcVisualizerInstance.transform.rotation = rotation;
				origin = Vector3.zero;
				initialVelocity = Quaternion.Inverse(rotation) * initialVelocity;
			}
			else
			{
				arcVisualizerInstance.transform.rotation = Quaternion.LookRotation(Vector3.Cross(initialVelocity, Vector3.up));
			}
			float y = Physics.gravity.y;
			float num = duration / (float)points.Length;
			Vector3 vector = origin;
			Vector3 vector2 = initialVelocity;
			float num2 = num;
			float num3 = y * num2;
			float maxDistanceDelta = characterAcceleration * num2;
			for (int i = 0; i < points.Length; i++)
			{
				points[i] = vector;
				Vector2 current = Util.Vector3XZToVector2XY(vector2);
				current = Vector2.MoveTowards(current, Vector3.zero, maxDistanceDelta);
				vector2.x = current.x;
				vector2.z = current.y;
				vector2.y += num3;
				vector += vector2 * num2;
			}
			lineRenderer.SetPositions(points);
		}
	}

	public static GameObject arcVisualizerPrefab;

	public static float arcVisualizerSimulationLength;

	public static int arcVisualizerVertexCount;

	[SerializeField]
	public float baseChargeDuration = 1f;

	public static float minChargeForChargedAttack;

	public static GameObject chargeVfxPrefab;

	public static string chargeVfxChildLocatorName;

	public static GameObject crosshairOverridePrefab;

	public static float walkSpeedCoefficient;

	public static string startChargeLoopSFXString;

	public static string endChargeLoopSFXString;

	public static string enterSFXString;

	private CrosshairUtils.OverrideRequest crosshairOverrideRequest;

	private Transform chargeVfxInstanceTransform;

	private int gauntlet;

	private uint soundID;

	private static int EmptyStateHash = Animator.StringToHash("Empty");

	private static int ChargePunchIntroStateHash = Animator.StringToHash("ChargePunchIntro");

	private static int ChargePunchIntroParamHash = Animator.StringToHash("ChargePunchIntro.playbackRate");

	protected float chargeDuration { get; private set; }

	protected float charge { get; private set; }

	public override void OnEnter()
	{
		base.OnEnter();
		chargeDuration = baseChargeDuration / attackSpeedStat;
		Util.PlaySound(enterSFXString, base.gameObject);
		soundID = Util.PlaySound(startChargeLoopSFXString, base.gameObject);
	}

	public override InterruptPriority GetMinimumInterruptPriority()
	{
		return InterruptPriority.PrioritySkill;
	}

	public override void OnExit()
	{
		if ((bool)chargeVfxInstanceTransform)
		{
			EntityState.Destroy(chargeVfxInstanceTransform.gameObject);
			PlayAnimation("Gesture, Additive", EmptyStateHash);
			PlayAnimation("Gesture, Override", EmptyStateHash);
			crosshairOverrideRequest?.Dispose();
			chargeVfxInstanceTransform = null;
		}
		base.characterMotor.walkSpeedPenaltyCoefficient = 1f;
		Util.PlaySound(endChargeLoopSFXString, base.gameObject);
		base.OnExit();
	}

	public override void FixedUpdate()
	{
		base.FixedUpdate();
		charge = Mathf.Clamp01(base.fixedAge / chargeDuration);
		AkSoundEngine.SetRTPCValueByPlayingID("loaderShift_chargeAmount", charge * 100f, soundID);
		base.characterBody.SetSpreadBloom(charge);
		base.characterBody.SetAimTimer(3f);
		if (charge >= minChargeForChargedAttack && !chargeVfxInstanceTransform && (bool)chargeVfxPrefab)
		{
			if ((bool)crosshairOverridePrefab && crosshairOverrideRequest == null)
			{
				crosshairOverrideRequest = CrosshairUtils.RequestOverrideForBody(base.characterBody, crosshairOverridePrefab, CrosshairUtils.OverridePriority.Skill);
			}
			Transform transform = FindModelChild(chargeVfxChildLocatorName);
			if ((bool)transform)
			{
				chargeVfxInstanceTransform = UnityEngine.Object.Instantiate(chargeVfxPrefab, transform).transform;
				ScaleParticleSystemDuration component = chargeVfxInstanceTransform.GetComponent<ScaleParticleSystemDuration>();
				if ((bool)component)
				{
					component.newDuration = (1f - minChargeForChargedAttack) * chargeDuration;
				}
			}
			PlayCrossfade("Gesture, Additive", ChargePunchIntroStateHash, ChargePunchIntroParamHash, chargeDuration, 0.1f);
			PlayCrossfade("Gesture, Override", ChargePunchIntroStateHash, ChargePunchIntroParamHash, chargeDuration, 0.1f);
		}
		if ((bool)chargeVfxInstanceTransform)
		{
			base.characterMotor.walkSpeedPenaltyCoefficient = walkSpeedCoefficient;
		}
		if (base.isAuthority)
		{
			AuthorityFixedUpdate();
		}
	}

	public override void Update()
	{
		base.Update();
		Mathf.Clamp01(base.age / chargeDuration);
	}

	private void AuthorityFixedUpdate()
	{
		if (!ShouldKeepChargingAuthority())
		{
			outer.SetNextState(GetNextStateAuthority());
		}
	}

	protected virtual bool ShouldKeepChargingAuthority()
	{
		return IsKeyDownAuthority();
	}

	protected virtual EntityState GetNextStateAuthority()
	{
		return new SwingChargedFist
		{
			charge = charge
		};
	}
}