using Syntriax.Modules.Movement.ColliderTrigger;
using Syntriax.Modules.Movement.State;
using UnityEngine;

namespace Syntriax.Modules.Movement.SpecialAction
{
    [RequireComponent(typeof(Rigidbody2D))]
    public class PlatformerJump : MonoBehaviour, ISpecialActionActivate, ISpecialActionDeactivate
    {
        public float JumpSpeed { get; set; } = 0f;
        public IToggleState EnabledToggleState { get; protected set; } = null;

        public float FallThreshold { get; set; } = 0f;
        private float fallMultiplier = 0f;
        public float FallMultiplier
        {
            get => fallMultiplier;
            set => fallMultiplier = value * Time.fixedDeltaTime;
        }
        private float suspensionMultiplier = 0f;
        public float SuspensionMultiplier
        {
            get => suspensionMultiplier;
            set => suspensionMultiplier = value * Time.fixedDeltaTime;
        }

        protected bool airSuspension = false;
        protected IGroundTrigger groundCheck = null;
        protected Rigidbody2D rigid = null;
        protected IToggleState toggleState = null;

        protected virtual void Awake()
        {
            JumpSpeed = 10f;
            FallMultiplier = 1.5f;
            SuspensionMultiplier = 1f;
            EnabledToggleState = new MemberToggleState();
        }

        protected virtual void Start()
        {
            rigid = GetComponent<Rigidbody2D>();
            groundCheck = GetComponentInChildren<IGroundTrigger>();
            toggleState = GetComponent<IToggleState>();
        }

        protected virtual void FixedUpdate()
        {
            if (!EnabledToggleState.Toggled)
                return;

            if (rigid.velocity.y < FallThreshold)
                ApplySuspension(SuspensionMultiplier);
            else if (!airSuspension)
                ApplySuspension(FallMultiplier);
        }

        protected virtual void ApplySuspension(float multiplier)
            => rigid.velocity += Physics2D.gravity * multiplier;

        protected virtual void Jump()
        {
            Vector2 velocity = rigid.velocity;
            velocity.y = JumpSpeed;
            rigid.velocity = velocity;
        }

        public virtual void Activate()
        {
            if (!toggleState.Toggled)
                return;

            if (groundCheck.IsTrigerred)
                Jump();

            airSuspension = true;
        }

        public virtual void Deactivate()
        {
            if (!toggleState.Toggled)
                return;

            airSuspension = false;
        }
    }
}