using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;
using UnityEngine.UI;

namespace AppUI.Manager.Role
{
    /// <summary>
    /// 角色管理器，AppUI中涉及角色信息的界面都通过这个类来获取角色信息（昵称和头像），以保证信息的一致性
    /// </summary>
    public class RoleManager 
    {
        public readonly static string prefix = "Wonderfitter/";
        public const int NullAvatarID = int.MinValue;

        /// <summary>AppUI 预设头像在 <see cref="AvatarGroup"/> 中的起始 avatarID（index 0 → 7 → avatar_01）。</summary>
        public const int AppUIPresetAvatarIdBase = 7;

        /// <summary>AppUI 可选预设数量，与 <see cref="GetAvatarListLen"/> 中 7+32 一致。</summary>
        public const int AppUIPresetAvatarCount = 32;

        /// <summary><see cref="AvatarGroup"/> 网格下标 → 服务端 <c>user_info.avatarID</c>。</summary>
        public static int PresetGridIndexToAvatarId(int gridIndex) => AppUIPresetAvatarIdBase + gridIndex;

        public static bool IsAppUIPresetAvatarId(int avatarId) =>
            avatarId >= AppUIPresetAvatarIdBase && avatarId < AppUIPresetAvatarIdBase + AppUIPresetAvatarCount;

        // 腾讯云 COS 域名后缀
        private const string COS_DOMAIN_SUFFIX = ".myqcloud.com";

        /// <summary>
        /// 判断是否是 COS 资源
        /// </summary>
        public static bool IsCosResource(string url)
        {
            if (string.IsNullOrEmpty(url))
                return false;

            // 简单字符串匹配 host 是否包含 cos 域名
            return url.IndexOf(COS_DOMAIN_SUFFIX, StringComparison.OrdinalIgnoreCase) >= 0;
        }
        public static bool IsRoleAvatar(int id)
        {
            return id >= 1 && id <= 6;
        }
        public static int GetAvatarListLen()
        {
            return 7 + 32;
        }
        public static void SetAvatarToImage(Image image, int avatarID, string avatarUrl)
        {
            SetAvatarToImage(image, image, avatarID, avatarUrl);
        }
        public static void SetAvatarToImage(Image image, MonoBehaviour coroutineStarter, int avatarID, string avatarUrl)
        {
            if (avatarID == NullAvatarID)
            {
                if (image) image.sprite = null;
            }
            else if (avatarID < 0) coroutineStarter.StartCoroutine(LoadAvatar(avatarUrl, image));
            else
            {
                string path = "";
                if (avatarID < 7)
                {
                    //Player1-6是PK模式的默认头像，AppUI也沿用这个资源，所以路径不变
                    path += "Textures/Avatar/Player" + avatarID;
                }
                else {
                    //AppUI的资源路径和PK模式不一样，avatarID需要-7才能对应上
                    //因为新头像 下标从1开始，所以avatarID - 6 刚好对应上新头像的资源命名
                    path += prefix + "Textures/Avatar/images/avatar_" + (avatarID - 6).ToString("00");
                }
                if (image) image.sprite = Resources.Load<Sprite>(path);
            }
        }
        //缓存网络图片，避免重复加载
        private static Dictionary<string, Sprite> remoteAvatarMap = new Dictionary<string, Sprite>();
        private static IEnumerator LoadAvatar(string url, Image image)
        {
            if (string.IsNullOrWhiteSpace(url))
            {
                if (image) image.sprite = null;
                yield break;
            }
            if (remoteAvatarMap.ContainsKey(url))
            {
                if (image) image.sprite = remoteAvatarMap[url];
                yield break;
            }
            if (image) image.sprite = null;
            else yield break;
            using (UnityWebRequest uwr = new UnityWebRequest(url, UnityWebRequest.kHttpVerbGET))
            {
                uwr.downloadHandler = new DownloadHandlerTexture();
                yield return uwr.SendWebRequest();
                if (uwr.result != UnityWebRequest.Result.Success) yield break;
                Texture2D texture = DownloadHandlerTexture.GetContent(uwr);
                Sprite sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
                remoteAvatarMap[url] = sprite;
                if (image) image.sprite = sprite;
            }
        }
    }
}