using Unity.BossRoom.Gameplay.GameplayObjects.Character;
using UnityEngine;

namespace Unity.Multiplayer.Samples.BossRoom
{
    [RequireComponent(typeof(Collider))]
    public class Platform : MonoBehaviour
    {
        public bool IsOccupied => Occupier != null;
        public ServerCharacter Occupier { get; private set; }

        private Collider m_PlatformCollider;

        private void Awake()
        {
            m_PlatformCollider = GetComponent<Collider>();
            if (!m_PlatformCollider.isTrigger)
            {
                Debug.LogWarning($"Platform {name} collider must be set as a trigger.");
                m_PlatformCollider.isTrigger = true; // Ensure it's a trigger.
            }
        }

        /// <summary>
        /// Marks this platform as occupied by a specific player.
        /// </summary>
        /// <param name="player">The ServerCharacter occupying the platform.</param>
        public void Occupy(ServerCharacter player)
        {
            if (IsOccupied)
            {
                Debug.LogWarning($"Platform {name} is already occupied by {Occupier.name}.");
                return;
            }

            Occupier = player;
            Debug.Log($"{player.name} has occupied Platform {name}.");
        }

        /// <summary>
        /// Clears the occupation of this platform.
        /// </summary>
        public void Vacate()
        {
            if (!IsOccupied)
            {
                Debug.LogWarning($"Platform {name} is not currently occupied.");
                return;
            }

            Debug.Log($"{Occupier.name} has vacated Platform {name}.");
            Occupier = null;
        }

        private void OnTriggerEnter(Collider other)
        {
            if (!IsOccupied && other.TryGetComponent<ServerCharacter>(out var player))
            {
                Occupy(player);
                Debug.Log($"{player.name} has entered Platform {name}.");
            }
        }

        private void OnTriggerExit(Collider other)
        {
            if (IsOccupied && other.TryGetComponent<ServerCharacter>(out var player) && player == Occupier)
            {
                Vacate();
                Debug.Log($"{player.name} has exited Platform {name}.");
            }
        }
    }
}