using Unity.Netcode;
using UnityEngine;

[DisallowMultipleComponent]
[RequireComponent(typeof(Collider))]
public sealed class CannonRocketSlot : MonoBehaviour, IInteractable
{
    [SerializeField] private Transform snapPoint;

    private NetworkCannonController cannon;
    private Collider triggerCollider;

    public Transform SnapPoint => snapPoint != null ? snapPoint : transform;
    public Vector3 InteractionPosition => SnapPoint.position;
    public string InteractionPrompt => cannon != null
        ? cannon.LoadedRocket != null
            ? $"Take {cannon.LoadedRocket.RocketTypeId} rocket"
            : "Rocket slot"
        : "Rocket slot";
    public bool IsInteractionAvailable => cannon != null && cannon.CanTakeRocket;

    private void Reset()
    {
        snapPoint = transform;
        ResolveCollider();
        triggerCollider.isTrigger = true;
    }

    private void Awake() => ResolveCollider();

    private void OnValidate()
    {
        ResolveCollider();
        if (triggerCollider != null)
            triggerCollider.isTrigger = true;
    }

    public void Configure(NetworkCannonController owner) => cannon = owner;

    public void RequestInteraction()
    {
        if (IsInteractionAvailable)
            cannon.RequestTakeRocket();
    }

    private void OnTriggerEnter(Collider other) => TryInsert(other);
    private void OnTriggerStay(Collider other) => TryInsert(other);

    private void TryInsert(Collider other)
    {
        if (cannon == null || !cannon.IsServer || !cannon.IsSpawned)
            return;

        NetworkRocketItem rocket = other.GetComponentInParent<NetworkRocketItem>();
        if (rocket != null)
            cannon.TryInsertRocket(rocket);
    }

    public bool OverlapsAny(Collider[] itemColliders, float clearance)
    {
        ResolveCollider();
        if (triggerCollider == null || itemColliders == null)
            return false;

        Bounds bounds = triggerCollider.bounds;
        bounds.Expand(Mathf.Max(0f, clearance) * 2f);
        foreach (Collider itemCollider in itemColliders)
        {
            if (itemCollider != null && itemCollider.enabled &&
                bounds.Intersects(itemCollider.bounds))
                return true;
        }
        return false;
    }

    private void ResolveCollider()
    {
        if (triggerCollider == null)
            triggerCollider = GetComponent<Collider>();
    }
}