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

namespace MMO
{
    public static class MMOUtils
    {
        public static Sprite LoadTaskIcon(MMOTaskType pType)
        {
            string tPath = "";

            switch (pType)
            {
                case MMOTaskType.GetDiamond: tPath = "MMOImage/TaskIcon/Robux"; break;
                case MMOTaskType.PassLevel:
                case MMOTaskType.DailyLevel: tPath = "MMOImage/TaskIcon/Level"; break;
                case MMOTaskType.WatchRV:
                case MMOTaskType.DailyAds: tPath = "MMOImage/TaskIcon/WatchAd"; break;
                case MMOTaskType.RiseRank: tPath = "MMOImage/TaskIcon/Rank"; break;
            }
            
            return Resources.Load<Sprite>(tPath);
        }

        public static string GetMaskedID(string pID)
        {
            string tMaskedID = pID;
            if (tMaskedID.Length >= 2)
            {
                tMaskedID = tMaskedID.Replace(tMaskedID.Substring(1, Mathf.Min(3, tMaskedID.Length - 1)), "***");
            }

            return tMaskedID;
        }

        public static T RandomPick<T>(Dictionary<T, float> pDataDic)
        {
            if (pDataDic == null || pDataDic.Count == 0)
            {
                return default(T);
            }

            Dictionary<T, Vector2> tRandomDic = new Dictionary<T, Vector2>();
            float tBottomLine = 0;
            float tTopLine = 0;
            foreach (T tKey in pDataDic.Keys)
            {
                tTopLine += pDataDic[tKey];
                tRandomDic.Add(tKey, new Vector2(tBottomLine, tTopLine));
                tBottomLine = tTopLine;
                //Debug.Log(string.Format("{0}:{1}", tKey.ToString(), tRandomDic[tKey].ToString()));
            }

            T tPickedEle = default(T);
            float tRandomNum = Random.Range(0, tTopLine);

            foreach (T tKey in tRandomDic.Keys)
            {
                if (tRandomNum > tRandomDic[tKey].x && tRandomNum <= tRandomDic[tKey].y)
                {
                    tPickedEle = tKey;
                    break;
                }
            }

            return tPickedEle;
        }

        #region UI Grey
        private static Material grayMat;
        private static Material GetGrayMat()
        {
            if (grayMat == null)
            {
                Shader shader = Shader.Find("Custom/UI-Gray");
                if (shader == null)
                {
                    Debug.Log("UI-Gray shader null");
                    return null;
                }
                Material mat = new Material(shader);
                grayMat = mat;
            }

            return grayMat;
        }

        public static void SetImageGray(Image pImg, bool pGray)
        {
            if (pGray)
            {
                pImg.material = GetGrayMat();
                pImg.SetMaterialDirty();
            }
            else
            {
                pImg.material = null;
            }
        }
        #endregion
    }
}