using System;
using System.Collections.Generic;
using System.Linq;
using Unity.Collections;
using Unity.Collections.LowLevel.Unsafe;
using Unity.Netcode;
using Unity.Services.Lobbies.Models;
using UnityEngine;
using UnityEngine.AI;
using static Player;

public class Player : NetworkBehaviour
{
    [Header("Components")]
    [SerializeField] private NetworkObject network;
    [SerializeField] private PlayerMovement movement;
    [SerializeField] private Animator animator;
    [SerializeField] private NavMeshAgent agent;

    [Header("Character")]
    [SerializeField, ReadOnly] private GameObject spawnedCharacter;
    [SerializeField, ReadOnly] private Character character;

    public struct PlayerData : INetworkSerializable
    {
        public FixedString64Bytes playerName;
        public ulong playerId;

        public void NetworkSerialize<T>(BufferSerializer<T> serializer) where T : IReaderWriter
        {
            serializer.SerializeValue(ref playerName);
            serializer.SerializeValue(ref playerId);
        }
    }

    private NetworkVariable<FixedString32Bytes> characterName = new("", NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Owner);
    private NetworkVariable<PlayerData> playerData = new(default, NetworkVariableReadPermission.Everyone, NetworkVariableWritePermission.Owner);

    private Color chatColor;

    public PlayerMovement Movement => movement;
    public Animator Animator => animator;

    private void UpdateCharacter(string characterID)
    {
        Character character = GameManager.CharactersList.FindCharacter(characterID);
        UpdateCharacter(character);
    }
    private void UpdateCharacter(Character character)
    {
        this.character = character;

        if (character && IsOwner)
        {
            InstantiateCharacterServerRpc(OwnerClientId, character.IDName);
        }
    }

    [Rpc(SendTo.Server)]
    private void InstantiateCharacterServerRpc(ulong clientId, string characterID)
    {
        Debug.Log("[Rpc(SendTo.Server)]");
        Character character = GameManager.CharactersList.FindCharacter(characterID);

        if (spawnedCharacter) Destroy(spawnedCharacter);

        spawnedCharacter = Instantiate(character.Prefab, transform);
        NetworkObject networkObject = spawnedCharacter.GetComponent<NetworkObject>();
        if (networkObject != null)
        {
            networkObject.SpawnWithOwnership(clientId);
            spawnedCharacter.transform.parent = transform;
        }

        InstantiateCharacterEveryoneRpc(networkObject.NetworkObjectId);
    }

    [Rpc(SendTo.Everyone)]
    private void InstantiateCharacterEveryoneRpc(ulong networkObjectId)
    {
        Debug.Log("[Rpc(SendTo.Everyone)]");

        NetworkObject networkObject = NetworkManager.Singleton.SpawnManager.SpawnedObjects[networkObjectId];
        spawnedCharacter = networkObject.gameObject;

        if (networkObject.OwnerClientId == OwnerClientId)
        {
            animator = spawnedCharacter.GetComponent<Animator>();
            animator.SetInteger("Gender", (int)character.Gender);
        }
    }

    public override void OnNetworkSpawn()
    {
        characterName.OnValueChanged += (FixedString32Bytes previousValue, FixedString32Bytes newValue) =>
        {
            UpdateCharacter(newValue.ToString());
        };

        playerData.OnValueChanged += (PlayerData previousValue, PlayerData newValue) =>
        {
            ChatManager.Instance.AddUser(newValue.playerName.ToString(), newValue.playerId);
        };

        //UpdateCharacter(characterName.Value.ToString());
        Debug.Log("IDCharacter");

        if (IsOwner)
        {
            chatColor = GetRandomColor();
            characterName.Value = string.IsNullOrEmpty(LocalPlayerData.AvatarID) ? "char_james" : LocalPlayerData.AvatarID;
            playerData.Value = new PlayerData()
            {
                playerId = LocalPlayerData.ID,
                playerName = LocalPlayerData.PlayerName,
            };

            Debug.Log(characterName.Value);
            GameManager.Instance.SetLocalPlayer(this);
            FindUsers();
            GameManager.Instance.Loading(false);
        }
        else
        {
            Destroy(movement);
            Destroy(agent);
        }

    }

    private void FindUsers()
    {
        if (!IsOwner) return;


        List<Player> allPlayers = FindObjectsOfType<Player>().ToList();

        foreach (Player player in allPlayers)
        {
            if (LocalPlayerData.ID == player.playerData.Value.playerId) continue;

            ChatManager.Instance.AddUser(player.playerData.Value.playerName.ToString(), player.playerData.Value.playerId);
        }
    }

    public override void OnNetworkDespawn()
    {
        ChatManager.Instance.RemoveUser(OwnerClientId);

        //if (IsServer && !IsOwner)
        //{
        //    GameManager.Instance.HostLeft();
        //}
    }

    public override void OnDestroy()
    {
    }

    public void SetCharacter(Character character)
    {
        characterName.Value = character.IDName;
        LocalPlayerData.AvatarID = character.IDName;
        UpdateCharacter(character);
    }

    public void PlayAnimation(string anim)
    {
        if (!IsOwner) return;

        movement.StopMovement();
        animator.Play(anim);
    }

    private void AnimatorSetTrigger(string name)
    {
        if (!IsOwner) return;

        movement.StopMovement();
        animator.SetTrigger(name);
    }

    public void Sit() => AnimatorSetTrigger("Sit");
    public void Lay() => AnimatorSetTrigger("Lay");

    public void SpawnEmoji(int index)
    {
        SpawnEmojiEveryoneRpc(index);
    }

    [Rpc(SendTo.Everyone)]
    private void SpawnEmojiEveryoneRpc(int index)
    {
        EmojiPopup popup = Instantiate(GameManager.EmojiPopupData.Prefab, transform);
        popup.Initialize(index);
    }

    public void SetPosition(Vector3 position)
    {
        if (!IsOwner) return;

        movement.MoveTo(position);
        transform.position = position;
    }

    public void SendMessageLocation(string message)
    {
        SendMessageLocationEveryoneRpc(message, chatColor);
    }

    public void SendMessagePrivate(string message, ulong uid)
    {
        //ChatManager.Instance.CreatePrivateMessage(message, playerData.Value.playerName.ToString(), chatColor, true);
        SendMessagePrivateRpc(message, chatColor, uid);
    }

    [Rpc(SendTo.Everyone)]
    private void SendMessagePrivateRpc(string message, Color color, ulong uid)
    {
        if (IsOwner || LocalPlayerData.ID == uid)
        {
            ChatManager.Instance.CreatePrivateMessage(message, playerData.Value.playerName.ToString(), color, IsOwner);
        }
    }

    [Rpc(SendTo.Everyone)]
    private void SendMessageLocationEveryoneRpc(string message, Color color)
    {
        ChatManager.Instance.CreateLocationMessage(message, playerData.Value.playerName.ToString(), color, IsOwner);
    }

    public Color GetRandomColor()
    {
        float r = UnityEngine.Random.Range(0f, 0.9f);
        float g = UnityEngine.Random.Range(0f, 0.9f);
        float b = UnityEngine.Random.Range(0f, 0.9f);
        return new Color(r, g, b);
    }
}