using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

public class NetworkedProjectileAreaOfEffectOverTimeWithTickEvent : NetworkedAreaOfEffectOverTime
{
    [Header("Visuals")]
    [SerializeField] private GameObject hitParticlesPrefab;

    public ProjectileAbility projectileAbility;

    public UnityEvent<Taggable, List<Taggable>> onTickHappened = new UnityEvent<Taggable, List<Taggable>>();

    public UnityEvent<Taggable, List<Taggable>> onTargetHitByProjectile = new UnityEvent<Taggable, List<Taggable>>();

    NetworkedAntiProjectile possibleBlock;
    public bool canPierce;
    public float projectileSpeed;
    public AnimationCurve speedOverLifetime = AnimationCurve.Linear(0, 1, 1, 1);
    public bool useSpeedCurve = false;
    public bool enableCurving = false;
    public Vector3 curveAxis = Vector3.up;
    public float curveStrength = 1f;
    public float curveAmplitude = 45f;

    public bool enableRicochet = false;
    public int maxRicochets = 1;
    public float ricochetSpread = 10f;

    private float timeAlive = 0f;
    private int ricochetCount = 0;
    Vector3 incomingDir = new Vector3();
    Vector3 hitNormal = new Vector3();
    Vector3 reflected = new Vector3();

    protected List<Taggable> processedTargets = new List<Taggable>();
    protected List<Taggable> projectileTargets = new List<Taggable>();

    public void InitProjectileStats()
    {
       
    }

    private void Update()
    {
        if (waitingForDestroy) return;

        timeAlive += Time.deltaTime;

        float lifetimeFraction = Mathf.Clamp01(timeAlive / lifeSpan);
        float currentSpeed = useSpeedCurve ? projectileSpeed * speedOverLifetime.Evaluate(lifetimeFraction) : projectileSpeed;

        // Curving logic
        if (enableCurving)
        {
            float curveOffset = Mathf.Sin(timeAlive * curveStrength) * curveAmplitude * Time.deltaTime;
            transform.Rotate(curveAxis.normalized * curveOffset, Space.World);
        }

        transform.position += transform.forward * currentSpeed * Time.deltaTime;
    }

    protected override void OnTickPerformed()
    {
        if (targets.Count > 0)
            onTickHappened.Invoke(ownerTag, targets);
    }

    private void OnTriggerEnter(Collider other)
    {
        if (waitingForDestroy) return;

        target = other.GetComponentInParent<Taggable>();

        if (target == null) return;

        if (target == ownerTag && !canHitSelf) return;

        if (projectileAbility == null) return;

        if (!target.IsValidTarget(projectileAbility.targettingTags)) return;

        //Debug.Log($"TT[{Time.frameCount}] Past validation checks for {target.name}");

        if (processedTargets.Contains(target)) return;

        processedTargets.Add(target);

        hitPositionCorrected = target.transform.position;
        hitPositionCorrected.y = this.transform.position.y;
        onTargetHit.Invoke(hitPositionCorrected);


        possibleBlock = target.GetComponentInParent<NetworkedAntiProjectile>();
        if (possibleBlock != null)
        {
            waitingForDestroy = true;

            possibleBlock.SendBlockNotice();

            StartCoroutine(DelayedDestroy());
            return;
        }

        //Debug.Log($"TT[{Time.frameCount}] About to process effects");

        projectileTargets.Clear();

        projectileTargets.Add(target);

        foreach (BaseEffect effect in projectileAbility.abilityEffects)
        {
            //Debug.Log($"TT[{Time.frameCount}] Applying effect: {effect.name}");
            effect.ApplyEffect(ownerTag, projectileTargets);
        }

        if(projectileTargets.Count > 0)
        {
            //Debug.Log($"TT[{Time.frameCount}] OnProjectileHit {projectileTargets.Count}");
            onTargetHitByProjectile.Invoke(ownerTag, projectileTargets);
        }

        if (!canPierce)
        {
            if (enableRicochet && ricochetCount < maxRicochets)
            {
                incomingDir = transform.forward;
                hitNormal = other.ClosestPoint(transform.position) - transform.position;
                hitNormal = hitNormal.normalized;

                reflected = Vector3.Reflect(incomingDir, hitNormal);

                // Add spread
                reflected = Quaternion.Euler(Random.Range(-ricochetSpread, ricochetSpread),
                                             Random.Range(-ricochetSpread, ricochetSpread),
                                             0) * reflected;

                transform.forward = reflected;
                ricochetCount++;
                return;
            }

            waitingForDestroy = true;
            StartCoroutine(DelayedDestroy());
        }
    }
}