using MoreMountains.Tools;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace MoreMountains.CorgiEngine
{
	[AddComponentMenu("Corgi Engine/Weapons/Melee Weapon")]
	public class PawWeapon : Weapon
	{
		/// the possible shapes for the melee weapon's damage area
		public enum MeleeDamageAreaShapes { Rectangle, Circle }

		[MMInspectorGroup("Damage Area", true, 65)]

		[SerializeField]private int forceMultiplayer = 50;

		/// the shape of the damage area (rectangle or circle)
		[Tooltip("the shape of the damage area (rectangle or circle)")]
		public MeleeDamageAreaShapes DamageAreaShape = MeleeDamageAreaShapes.Rectangle;
		/// the size of the damage area
		[Tooltip("the size of the damage area")]
		public Vector2 AreaSize = new Vector2(1, 1);
		/// the offset to apply to the damage area (from the weapon's attachment position
		[Tooltip("the offset to apply to the damage area (from the weapon's attachment position")]
		public Vector2 AreaOffset = new Vector2(1, 0);

		[MMInspectorGroup("Melee Damage Area Timing", true, 70)]

		/// the initial delay to apply before triggering the damage area
		[Tooltip("the initial delay to apply before triggering the damage area")]
		public float InitialDelay = 0f;
		/// the duration during which the damage area is active
		[Tooltip("the duration during which the damage area is active")]
		public float ActiveDuration = 1f;

		[MMInspectorGroup("Melee Damage Caused", true, 75)]

		/// the layers that will be damaged by this object
		[Tooltip("the layers that will be damaged by this object")]
		public LayerMask TargetLayerMask;
		/// The amount of health to remove from the player's health
		[Tooltip("The amount of health to remove from the player's health")]
		public int DamageCaused = 10;
		/// the kind of knockback to apply
		[Tooltip("the kind of knockback to apply")]
		public DamageOnTouch.KnockbackStyles Knockback;
		/// The force to apply to the object that gets damaged
		[Tooltip("The force to apply to the object that gets damaged")]
		public Vector2 KnockbackForce = new Vector2(10, 2);
		/// The duration of the invincibility frames after the hit (in seconds)
		[Tooltip("The duration of the invincibility frames after the hit (in seconds)")]
		public float InvincibilityDuration = 0.5f;

		[SerializeField]
		private WeaponLaserSight laser;

		protected Collider2D _damageAreaCollider;
		protected bool _attackInProgress = false;

		protected Color _gizmosColor;
		protected Vector3 _gizmoSize;

		protected CircleCollider2D _circleCollider2D;
		protected BoxCollider2D _boxCollider2D;
		protected Vector3 _gizmoOffset;
		protected DamageOnTouch _damageOnTouch;
		protected GameObject _damageArea;

		protected bool _hitEventSent = false;
		protected bool _hitDamageableEventSent = false;
		protected bool _hitNonDamageableEventSent = false;
		protected bool _killEventSent = false;

		/// <summary>
		/// Initialization
		/// </summary>
		public override void Initialization()
		{
			base.Initialization();
			if (_damageArea == null)
			{
				CreateDamageArea();
				DisableDamageArea();
				RegisterEvents();
			}
			_damageOnTouch.Owner = Owner.gameObject;
		}

		/// <summary>
		/// Creates the damage area.
		/// </summary>
		protected virtual void CreateDamageArea()
		{
			_damageArea = new GameObject();
			_damageArea.name = this.name + "DamageArea";
			_damageArea.transform.position = this.transform.position;
			_damageArea.transform.rotation = this.transform.rotation;
			_damageArea.transform.SetParent(this.transform);

			if (DamageAreaShape == MeleeDamageAreaShapes.Rectangle)
			{
				_boxCollider2D = _damageArea.AddComponent<BoxCollider2D>();
				_boxCollider2D.offset = AreaOffset;
				_boxCollider2D.size = AreaSize;
				_damageAreaCollider = _boxCollider2D;
			}
			if (DamageAreaShape == MeleeDamageAreaShapes.Circle)
			{
				_circleCollider2D = _damageArea.AddComponent<CircleCollider2D>();
				_circleCollider2D.transform.position = this.transform.position + this.transform.rotation * AreaOffset;
				_circleCollider2D.radius = AreaSize.x / 2;
				_damageAreaCollider = _circleCollider2D;
			}
			_damageAreaCollider.isTrigger = true;

			Rigidbody2D rigidBody = _damageArea.AddComponent<Rigidbody2D>();
			rigidBody.isKinematic = true;

			_damageOnTouch = _damageArea.AddComponent<DamageOnTouch>();
			_damageOnTouch.TargetLayerMask = TargetLayerMask;
			_damageOnTouch.DamageCaused = DamageCaused;
			_damageOnTouch.DamageCausedKnockbackType = Knockback;
			_damageOnTouch.DamageCausedKnockbackForce = KnockbackForce;
			_damageOnTouch.InvincibilityDuration = InvincibilityDuration;
		}

		/// <summary>
		/// When the weapon is used, we trigger our attack routine
		/// </summary>
		protected override void WeaponUse()
		{
			base.WeaponUse();
			StartCoroutine(MeleeWeaponAttack());
		}

		/// <summary>
		/// Triggers an attack, turning the damage area on and then off
		/// </summary>
		/// <returns>The weapon attack.</returns>
		protected virtual IEnumerator MeleeWeaponAttack()
		{
			if (_attackInProgress) { yield break; }


			_attackInProgress = true;

			//Debug.Log(transform.rotation.normalized);
			//	Debug.Log(transform.position);
			Vector3 _mousePos = Input.mousePosition;
			Vector3 direction = _mousePos - Owner.transform.position;
			Vector2 irect = direction.normalized;
			Debug.Log(_mousePos);
			Debug.Log(Owner.transform.position);
			ForceWhileInUse = new Vector2(_mousePos.x - transform.position.x , _mousePos.y - transform.position.y).normalized;
			
			
			Debug.Log(Input.mousePosition.magnitude);
		//	_controller.AddForce(irect * 50);
			yield return new WaitForSeconds(InitialDelay);
			EnableDamageArea();
			yield return MMCoroutine.WaitForFrames(1);
			HandleMiss();
			yield return new WaitForSeconds(ActiveDuration);
			DisableDamageArea();
			_attackInProgress = false;
		}

		/// <summary>
		/// Enables the damage area.
		/// </summary>
		protected virtual void EnableDamageArea()
		{
			_hitEventSent = false;
			_hitDamageableEventSent = false;
			_hitNonDamageableEventSent = false;
			_killEventSent = false;
			_damageAreaCollider.enabled = true;
		}

        private void Update()
        {
			Vector3 _mousePos = Input.mousePosition;
			Vector3 direction = _mousePos - Owner.transform.position;

            if (Input.GetMouseButtonDown(0))
            {
				mouseStartpos = Input.mousePosition;
			}

            if (Input.GetMouseButtonUp(0))
            {
				Vector2 newpose = Input.mousePosition;
				_controller.AddForce((newpose - mouseStartpos).normalized * forceMultiplayer);
			}
		}

        /// <summary>
        /// Triggers a weapon miss if no hit was detected last frame
        /// </summary>
        protected virtual void HandleMiss()
		{
			if (!_hitEventSent)
			{
				WeaponMiss();
			}
		}

		/// <summary>
		/// Disables the damage area.
		/// </summary>
		protected virtual void DisableDamageArea()
		{
			_damageAreaCollider.enabled = false;
		}

		/// <summary>
		/// Draws the melee weapon's range
		/// </summary>
		protected virtual void DrawGizmos()
		{
			_gizmoOffset = AreaOffset;

			Gizmos.color = Color.red;
			if (DamageAreaShape == MeleeDamageAreaShapes.Circle)
			{
				Gizmos.DrawWireSphere(this.transform.position + _gizmoOffset, AreaSize.x / 2);
			}
			if (DamageAreaShape == MeleeDamageAreaShapes.Rectangle)
			{
				MMDebug.DrawGizmoRectangle(this.transform.position + _gizmoOffset, AreaSize, Color.red);
			}
		}

		/// <summary>
		/// Draws gizmos on selected if the app is not playing
		/// </summary>
		protected virtual void OnDrawGizmosSelected()
		{
			if (!Application.isPlaying)
			{
				DrawGizmos();
			}
		}

		/// <summary>
		/// When we get a hit, we trigger one on the main class
		/// </summary>
		protected virtual void OnHit()
		{
			if (!_hitEventSent)
			{
				WeaponHit();
				_hitEventSent = true;
			}
		}

		/// <summary>
		/// When we get a HitDamageable, we trigger one on the main class
		/// </summary>
		protected virtual void OnHitDamageable()
		{
			if (!_hitDamageableEventSent)
			{
				WeaponHitDamageable();
				_hitDamageableEventSent = true;
			}
		}

		/// <summary>
		/// When we get a HitNonDamageable, we trigger one on the main class
		/// </summary>
		protected virtual void OnHitNonDamageable()
		{
			if (!_hitNonDamageableEventSent)
			{
				WeaponHitNonDamageable();
				_hitNonDamageableEventSent = true;
			}
		}

		Vector2 mouseStartpos;

		void OnMouseDown()
        {
			mouseStartpos = Input.mousePosition;
			Debug.Log("dwn "+  mouseStartpos * 100);
		}

        void OnMouseUp()
        {
			Vector2 newpose = Input.mousePosition;
			Debug.Log("up " + (newpose - mouseStartpos) * 100);
			_controller.AddForce((newpose - mouseStartpos) * 100);
        }

        /// <summary>
        /// When we get a Kill, we trigger one on the main class
        /// </summary>
        protected virtual void OnKill()
		{
			if (!_killEventSent)
			{
				WeaponKill();
				_killEventSent = true;
			}
		}

		/// <summary>
		/// On enable, we reset the object's speed
		/// </summary>
		protected virtual void RegisterEvents()
		{
			if (_damageOnTouch != null)
			{
				_damageOnTouch.OnKill += OnKill;
				_damageOnTouch.OnHit += OnHit;
				_damageOnTouch.OnHitDamageable += OnHitDamageable;
				_damageOnTouch.OnHitNonDamageable += OnHitNonDamageable;
			}
		}

		/// <summary>
		/// On Disable we unsubscribe from our delegates
		/// </summary>
		protected virtual void OnDisable()
		{
			if (_damageOnTouch != null)
			{
				_damageOnTouch.OnKill -= OnKill;
				_damageOnTouch.OnHit -= OnHit;
				_damageOnTouch.OnHitDamageable -= OnHitDamageable;
				_damageOnTouch.OnHitNonDamageable -= OnHitNonDamageable;
			}
		}
	}
}