using Unity.Netcode;
using UnityEngine;

[DefaultExecutionOrder(100)] // после PlayerMovement.LateUpdate (pitch камеры)
public class PlayerShoot : NetworkBehaviour
{
    [SerializeField] float damageAmount = 10f;
    [SerializeField] float range = 100f;
    [SerializeField] Transform cameraRoot;

    [SerializeField] GameObject hitEffectPrefab;

    private PlayerHealth playerHealth;
    private WeaponView weaponView;
    private PlayerShield playerShield;

    private bool isActive = false;

    public void Init()
    {
        isActive = true;

        playerHealth = GetComponent<PlayerHealth>();
        playerShield = GetComponent<PlayerShield>();
        weaponView = GetComponentInChildren<WeaponView>(true);
    }

    private void LateUpdate()
    {
        if (!isActive) return;

        if (playerHealth == null || playerHealth.isDead.Value) return;
        if (playerShield != null && playerShield.IsShieldUp) return;

        if (Input.GetMouseButtonDown(0))
        {
            Vector3 _origin = cameraRoot.position;
            Vector3 _direction = cameraRoot.forward;

            weaponView?.PlayShoot();

            // Мгновенный фидбек на стреляющем клиенте — не ждём серверный ClientRpc
            if (TryRaycastShot(_origin, _direction, out RaycastHit _predictedHit))
                SpawnHitEffectLocal(_predictedHit.point);

            ShootServerRpc(_origin, _direction);
        }
    }

    [ServerRpc]
    private void ShootServerRpc(Vector3 _origin, Vector3 _direction)
    {
        GetComponent<GhostRecorder>()?.RecordShot(_origin, _direction);

        if (!TryRaycastShot(_origin, _direction, out RaycastHit _hit))
            return;

        PlayerHealth _targetHealth = _hit.collider.GetComponentInParent<PlayerHealth>();
        if (_targetHealth != null)
            _targetHealth.TakeDamage((int)damageAmount);

        SpawnHitEffectClientRpc(_hit.point);
    }

    [ClientRpc]
    private void SpawnHitEffectClientRpc(Vector3 _hitPosition)
    {
        // Владелец уже показал эффект локально при клике
        if (IsOwner) return;

        SpawnHitEffectLocal(_hitPosition);
    }

    private bool TryRaycastShot(Vector3 _origin, Vector3 _direction, out RaycastHit _hit)
    {
        _hit = default;

        if (!Physics.Raycast(_origin, _direction, out _hit, range))
            return false;

        Collider[] _ownerColliders = GetComponentsInChildren<Collider>();
        for (int i = 0; i < _ownerColliders.Length; i++)
        {
            if (_ownerColliders[i] == _hit.collider)
                return false;
        }

        return true;
    }

    private void SpawnHitEffectLocal(Vector3 _hitPosition)
    {
        if (hitEffectPrefab == null) return;
        Instantiate(hitEffectPrefab, _hitPosition, Quaternion.identity);
    }
}