using UnityEngine;

[RequireComponent(typeof(Rigidbody))]
[RequireComponent(typeof(Collider))]
public class ProjectileBehaviour : MonoBehaviour
{
    public enum ProjectileKind
    {
        Potato,
        Knife
    }

    [Header("Projectile Data")]
    public ProjectileKind kind;
    public float baseDamage = 35f;
    public float sigma = 2f;
    public float directHitMultiplier = 1.15f;
    public float breakImpulse = 1.8f;
    public float lifeTime = 8f;

    private Rigidbody rb;
    private GlassRingController ring;
    private float charge01;
    private bool armed;

    private void Awake()
    {
        rb = GetComponent<Rigidbody>();
    }

    public void Launch(GlassRingController ringController, Vector3 launchVelocity, float normalizedCharge)
    {
        ring = ringController;
        charge01 = Mathf.Clamp01(normalizedCharge);

        rb.linearVelocity = launchVelocity;
        rb.angularVelocity = Vector3.zero;

        armed = true;

        Destroy(gameObject, lifeTime);
    }

    private void OnCollisionEnter(Collision collision)
    {
        if (!armed) return;
        armed = false;

        Vector3 hitPoint = collision.contactCount > 0
            ? collision.GetContact(0).point
            : transform.position;

        GlassPiece piece = collision.collider.GetComponentInParent<GlassPiece>();
        if (piece != null && ring != null && !piece.IsBroken)
        {
            ring.ApplyProjectileImpact(piece.PieceIndex, this, charge01, hitPoint);
            Destroy(gameObject);
            return;
        }

        CenterButtonTarget button = collision.collider.GetComponentInParent<CenterButtonTarget>();
        if (button != null)
        {
            button.NotifyHit(this);
            Destroy(gameObject);
            return;
        }

        Destroy(gameObject);
    }
}