using UnityEngine;

namespace BaseGames.World
{
    /// <summary>
    /// 玩家出生点标记。RoomController 通过 transitionId 查找匹配的出生点。
    /// </summary>
    public class PlayerSpawnPoint : MonoBehaviour
    {
        [SerializeField] private string _transitionId;

        [Tooltip("+1 = 朝右出生，-1 = 朝左出生")]
        [SerializeField] private int _facingDirection = 1;

        [Tooltip("（可选）此出生点对应的出口门。\n" +
                 "玩家在此出生后，调用 TriggerExitDoor() 播放门的进入动画（玩家从门里走出）。\n" +
                 "仅在使用 DoorTransition 的场景中需要配置。")]
        [SerializeField] private DoorTransition _exitDoor;

        public string         TransitionId    => _transitionId;
        public Vector2        SpawnPosition   => transform.position;
        /// <summary>玩家出生时的朝向（+1 右，-1 左）。</summary>
        public int            FacingDirection => _facingDirection;
        /// <summary>此出生点关联的出口门（可为 null）。</summary>
        public DoorTransition ExitDoor        => _exitDoor;

        /// <summary>
        /// 触发出口门的进入动画（玩家从门内侧走出）。
        /// 无关联门时静默跳过。由负责放置玩家的系统在玩家落点后调用。
        /// </summary>
        public void TriggerExitDoor() => _exitDoor?.PlayEnterAnimation();

        private void OnDrawGizmos()
        {
            Gizmos.color = Color.green;
            Gizmos.DrawWireSphere(transform.position, 0.3f);
            Gizmos.DrawLine(transform.position, transform.position + Vector3.up * 0.5f);

            // 门关联指示线
            if (_exitDoor != null)
            {
                Gizmos.color = new Color(0.7f, 0.3f, 1f, 0.6f);
                Gizmos.DrawLine(transform.position, _exitDoor.transform.position);
            }
        }
    }
}