using Unity.Netcode;
using UnityEngine;

/// <summary>
/// Sits on the Lobby's "Start Match" trigger volume (a BoxCollider with isTrigger on). When the HOST's
/// own player walks in, it asks the <see cref="MatchManager"/> to start the match. Server-gated: pure
/// clients fire nothing (IsServer is false there), and only the host-owned player object counts, so a
/// remote avatar passing through never starts the match. The trigger lives in the additively-loaded
/// Lobby and is destroyed when the lobby unloads, so it cannot start a second match.
/// </summary>
[RequireComponent(typeof(Collider))]
[DisallowMultipleComponent]
public class StartMatchTrigger : MonoBehaviour
{
    private void OnTriggerEnter(Collider other)
    {
        var nm = NetworkManager.Singleton;
        if (!nm || !nm.IsServer) return; // only the server/host starts the match

        var netObj = other.GetComponentInParent<NetworkObject>();
        if (!netObj || !netObj.IsPlayerObject) return;        // must be a player avatar
        if (netObj.OwnerClientId != nm.LocalClientId) return; // ...and specifically the host's own

        if (MatchManager.Instance) MatchManager.Instance.StartMatch();
    }
}