using System;
using System.Collections;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.UI;
using GameServer.Client;

#if !(UNITY_STANDALONE_WIN || UNITY_STANDALONE_LINUX || UNITY_STANDALONE_OSX || STEAMWORKS_WIN || STEAMWORKS_LIN_OSX)
#define FRIEND_DISABLE_STEAMWORKS
#endif

#if !FRIEND_DISABLE_STEAMWORKS
using Steamworks;
#endif

public class friendCardPrefab : MonoBehaviour
{
    [SerializeField] private Image profileBorder;
    [SerializeField] private Image friendProfile;
    [SerializeField] private Text friendName;
    [SerializeField] private Text friendStatus;
    [SerializeField] private Button friendDetails;
    [SerializeField] private Button startPersonalConversation;
    [SerializeField] private Toggle isStarFriend;
    [SerializeField] private Image friendOffline_blackMask;

    [Header("offline heibai")]
    [SerializeField] private Material offline_material;

    private Material _profileBorderMaterial;
    private Material _friendProfileMaterial;
    private Coroutine _avatarLoadRoutine;
    private Sprite _runtimeAvatarSprite;
    private Texture2D _runtimeAvatarTexture;
    private Texture2D _runtimeSteamAvatarTexture;
    private Texture2D _runtimeSteamAvatarFlippedTexture;
    private string _steamId;
    private Action<string, bool> _starChanged;
    private Action<string> _openDetails;
    private Action<string> _openPrivateConversation;
    private bool _bindingToggle;

    private void Awake()
    {
        _profileBorderMaterial = profileBorder != null ? profileBorder.material : null;
        _friendProfileMaterial = friendProfile != null ? friendProfile.material : null;
    }

    private void OnDestroy()
    {
        if (_avatarLoadRoutine != null)
        {
            StopCoroutine(_avatarLoadRoutine);
            _avatarLoadRoutine = null;
        }

        ReleaseRuntimeAvatarResources();
    }

    public void Bind(FriendCardViewData data, Action<string, bool> onStarChanged, Action<string> onOpenDetails, Action<string> onOpenPrivateConversation)
    {
        _steamId = data != null ? data.SteamId : string.Empty;
        _starChanged = onStarChanged;
        _openDetails = onOpenDetails;
        _openPrivateConversation = onOpenPrivateConversation;

        if (friendName != null)
        {
            friendName.text = data != null ? data.DisplayName ?? string.Empty : string.Empty;
        }

        if (friendStatus != null)
        {
            friendStatus.text = data != null ? data.StatusText ?? string.Empty : string.Empty;
        }

        ApplyOnlineVisualState(data != null && data.IsOnline);

        if (isStarFriend != null)
        {
            isStarFriend.onValueChanged.RemoveAllListeners();
            _bindingToggle = true;
            isStarFriend.isOn = data != null && data.IsStarred;
            _bindingToggle = false;
            isStarFriend.onValueChanged.AddListener(HandleStarToggleChanged);
        }

        if (friendDetails != null)
        {
            friendDetails.onClick.RemoveAllListeners();
            friendDetails.onClick.AddListener(HandleOpenDetails);
        }

        if (startPersonalConversation != null)
        {
            startPersonalConversation.onClick.RemoveAllListeners();
            startPersonalConversation.onClick.AddListener(HandleStartPrivateConversation);
        }

        if (_avatarLoadRoutine != null)
        {
            StopCoroutine(_avatarLoadRoutine);
        }
        _avatarLoadRoutine = StartCoroutine(LoadAvatarRoutine(data));
    }

    private void HandleStarToggleChanged(bool isOn)
    {
        if (_bindingToggle)
        {
            return;
        }

        _starChanged?.Invoke(_steamId, isOn);
    }

    private void HandleOpenDetails()
    {
        _openDetails?.Invoke(_steamId);
    }

    private void HandleStartPrivateConversation()
    {
        _openPrivateConversation?.Invoke(_steamId);
    }

    private void ApplyOnlineVisualState(bool isOnline)
    {
        if (friendOffline_blackMask != null)
        {
            friendOffline_blackMask.gameObject.SetActive(!isOnline);
        }

        Material borderMaterial = isOnline ? _profileBorderMaterial : offline_material;
        Material profileMaterial = isOnline ? _friendProfileMaterial : offline_material;

        if (profileBorder != null)
        {
            profileBorder.material = borderMaterial;
        }

        if (friendProfile != null)
        {
            friendProfile.material = profileMaterial;
        }
    }

    private IEnumerator LoadAvatarRoutine(FriendCardViewData data)
    {
        if (friendProfile == null || data == null)
        {
            yield break;
        }

        ReleaseRuntimeAvatarResources();

        string resolvedAvatarUrl = NetworkManager.ResolveAvatarUrl(data.AvatarUrl, data.SteamId);
        bool loaded = false;

        if (NetworkManager.IsUsableAvatarUrl(resolvedAvatarUrl)
            && !resolvedAvatarUrl.StartsWith(NetworkManager.SteamAvatarUrlPrefix, StringComparison.OrdinalIgnoreCase))
        {
            using (UnityWebRequest request = UnityWebRequestTexture.GetTexture(resolvedAvatarUrl))
            {
                yield return request.SendWebRequest();
                if (request.result == UnityWebRequest.Result.Success)
                {
                    Texture2D texture = DownloadHandlerTexture.GetContent(request);
                    if (texture != null)
                    {
                        _runtimeAvatarTexture = texture;
                        _runtimeAvatarSprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
                        friendProfile.sprite = _runtimeAvatarSprite;
                        loaded = true;
                    }
                }
            }
        }

        if (!loaded)
        {
            yield return LoadSteamAvatarRoutine(data.SteamId);
        }

        _avatarLoadRoutine = null;
    }

    private IEnumerator LoadSteamAvatarRoutine(string steamId)
    {
#if FRIEND_DISABLE_STEAMWORKS
        yield break;
#else
        if (!SteamManager.Initialized || string.IsNullOrWhiteSpace(steamId) || friendProfile == null || !ulong.TryParse(steamId, out ulong rawSteamId))
        {
            yield break;
        }

        var targetSteamId = new CSteamID(rawSteamId);
        SteamFriends.RequestUserInformation(targetSteamId, false);

        const float timeout = 5f;
        float deadline = Time.realtimeSinceStartup + timeout;
        while (Time.realtimeSinceStartup < deadline)
        {
            int imageId = SteamFriends.GetLargeFriendAvatar(targetSteamId);
            if (imageId <= 0)
            {
                imageId = SteamFriends.GetMediumFriendAvatar(targetSteamId);
            }

            if (imageId > 0 && SteamUtils.GetImageSize(imageId, out uint width, out uint height) && width > 0 && height > 0)
            {
                byte[] buffer = new byte[width * height * 4];
                if (SteamUtils.GetImageRGBA(imageId, buffer, buffer.Length))
                {
                    _runtimeSteamAvatarTexture = new Texture2D((int)width, (int)height, TextureFormat.RGBA32, false);
                    _runtimeSteamAvatarTexture.LoadRawTextureData(buffer);
                    _runtimeSteamAvatarTexture.Apply();

                    _runtimeSteamAvatarFlippedTexture = new Texture2D((int)width, (int)height, TextureFormat.RGBA32, false);
                    for (int y = 0; y < height; y++)
                    {
                        Color[] pixels = _runtimeSteamAvatarTexture.GetPixels(0, (int)y, (int)width, 1);
                        _runtimeSteamAvatarFlippedTexture.SetPixels(0, (int)height - 1 - (int)y, (int)width, 1, pixels);
                    }
                    _runtimeSteamAvatarFlippedTexture.Apply();

                    _runtimeAvatarSprite = Sprite.Create(_runtimeSteamAvatarFlippedTexture, new Rect(0, 0, width, height), new Vector2(0.5f, 0.5f));
                    friendProfile.sprite = _runtimeAvatarSprite;
                    yield break;
                }
            }

            yield return new WaitForSecondsRealtime(0.25f);
        }
#endif
    }

    private void ReleaseRuntimeAvatarResources()
    {
        if (_runtimeAvatarSprite != null)
        {
            Destroy(_runtimeAvatarSprite);
            _runtimeAvatarSprite = null;
        }

        if (_runtimeAvatarTexture != null)
        {
            Destroy(_runtimeAvatarTexture);
            _runtimeAvatarTexture = null;
        }

        if (_runtimeSteamAvatarFlippedTexture != null)
        {
            Destroy(_runtimeSteamAvatarFlippedTexture);
            _runtimeSteamAvatarFlippedTexture = null;
        }

        if (_runtimeSteamAvatarTexture != null)
        {
            Destroy(_runtimeSteamAvatarTexture);
            _runtimeSteamAvatarTexture = null;
        }
    }
}