using UnityEngine;
using Unity.Netcode;

public class ConstructionSite : NetworkBehaviour
{
    private NetworkVariable<float> _currentTimer = new NetworkVariable<float>(0f);
    private NetworkVariable<int> _syncTurretIndex = new NetworkVariable<int>();
    private Vector3Int _gridPos;
    private float _targetBuildTime;
    private bool _isCompleted = false;

    public void Initialize(int index, Vector3Int pos)
    {
        if (!IsServer) return;
        _syncTurretIndex.Value = index;
        _gridPos = pos;
        _targetBuildTime = BuildManager.Instance.GetTurretData(index).buildTime;
    }

    void Update()
    {
        if (!IsServer || _isCompleted) return;

        _currentTimer.Value += Time.deltaTime;
        if (_currentTimer.Value >= _targetBuildTime) CompleteBuild();
    }

    public void AdvanceConstruction(float amount) => AdvanceBuildRpc(amount);

    [Rpc(SendTo.Server, InvokePermission = RpcInvokePermission.Everyone)]
    private void AdvanceBuildRpc(float amount) => _currentTimer.Value += amount;

    private void CompleteBuild()
    {
        _isCompleted = true;
        var data = BuildManager.Instance.GetTurretData(_syncTurretIndex.Value);

        // [중요] 저장된 그리드 좌표로부터 정확한 월드 좌표 복원
        Vector3 finalPos = BuildManager.Instance.GridToWorld(_gridPos);
        GameObject finalObj = Instantiate(data.finalPrefab, finalPos, Quaternion.identity);

        finalObj.GetComponent<NetworkObject>().Spawn();
        GetComponent<NetworkObject>().Despawn();
    }
}