using Unity.Netcode;
using UnityEngine;

namespace Northbound
{
    public class PlayerResourceInventory : NetworkBehaviour
    {
        private int _displayAmount = 0;

        public int CurrentResourceAmount => _displayAmount;
        public int MaxResourceCapacity => _playerStats?.GetCapacity() ?? 100;

        private NetworkPlayerController _networkPlayerController;
        private PlayerStats _playerStats;

        private bool IsLocalPlayer => _networkPlayerController != null && _networkPlayerController.IsLocalPlayer;
        private ulong LocalPlayerId => _networkPlayerController != null ? _networkPlayerController.OwnerPlayerId : OwnerClientId;

        private void Awake()
        {
            _networkPlayerController = GetComponent<NetworkPlayerController>();
            _playerStats = GetComponent<PlayerStats>();
        }

        [Rpc(SendTo.Server)]
        private void SetMaxCapacityServerRpc(int maxCapacity, ulong playerId)
        {
            var resourceManager = ServerResourceManager.Instance;
            if (resourceManager != null)
            {
                resourceManager.SetPlayerMaxCapacity(playerId, maxCapacity);
            }
        }

        public override void OnNetworkSpawn()
        {
            if (_networkPlayerController != null)
            {
                _networkPlayerController.OnOwnerChanged += OnOwnerPlayerIdChanged;
            }

            TryInitialize();
        }

        private void OnOwnerPlayerIdChanged(ulong newOwnerId)
        {
            TryInitialize();
        }

        private void TryInitialize()
        {
            if (!IsLocalPlayer) return;

            SetMaxCapacityServerRpc(MaxResourceCapacity, LocalPlayerId);
            RequestResourceUpdateServerRpc(LocalPlayerId);
        }

        public override void OnNetworkDespawn()
        {
            if (_networkPlayerController != null)
            {
                _networkPlayerController.OnOwnerChanged -= OnOwnerPlayerIdChanged;
            }
        }

        [Rpc(SendTo.Server)]
        public void RequestResourceUpdateServerRpc(ulong playerId)
        {
            var resourceManager = ServerResourceManager.Instance;
            if (resourceManager != null)
            {
                int amount = resourceManager.GetPlayerResourceAmount(playerId);
                UpdateResourceAmountClientRpc(amount);
            }
        }

        [Rpc(SendTo.ClientsAndHost)]
        private void UpdateResourceAmountClientRpc(int amount)
        {
            _displayAmount = amount;
        }

        public void UpdateResourceAmountDirectly(int amount)
        {
            _displayAmount = amount;
        }

        public bool CanAddResource(int amount)
        {
            var resourceManager = ServerResourceManager.Instance;
            if (resourceManager != null)
            {
                return resourceManager.CanAddResource(LocalPlayerId, amount);
            }
            return false;
        }

        public int GetAvailableSpace()
        {
            var resourceManager = ServerResourceManager.Instance;
            if (resourceManager != null)
            {
                return resourceManager.GetAvailableSpace(LocalPlayerId);
            }
            return 0;
        }
    }
}