using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace AsiaINFO.SMS.BusinessFactory
{
    public class CheckRepeat
    {
        private static CheckRepeat _instance = null;
        public static CheckRepeat Instance
        {
            get
            {
                if (CheckRepeat._instance == null)
                {
                    CheckRepeat._instance = new CheckRepeat();
                }
                return _instance;
            }
        }

        private CheckRepeat() { }

        private Dictionary<int, Dictionary<string, bool>> _hasSubmit = new Dictionary<int, Dictionary<string, bool>>();

        public bool checkMessageId(string msgId)
        {
            int curKey = this.getCurKey();
            int[] checkKeys = getCheckKeys(curKey);
            this.removeDict(curKey);
            foreach (int key in checkKeys)
            {
                if (this._hasSubmit.ContainsKey(key) && this._hasSubmit[key] != null)
                {
                    if (this._hasSubmit[key].ContainsKey(msgId)) return true;
                }
            }
            return false;
        }
        private int getCurKey()
        {
            DateTime now = DateTime.Now;
            int min = (int.Parse(now.ToString("mm")) / 10);//0,1,2,3,4,5
            return min;
        }
        public void addSubmitMessageToCache(string msgId)
        {
            int curKey = this.getCurKey();
            if (this._hasSubmit.ContainsKey(curKey) && this._hasSubmit[curKey] != null)
            {
                Dictionary<string, bool> keys = this._hasSubmit[curKey];
                keys.Add(msgId, true);
            }
            else if (this._hasSubmit.ContainsKey(curKey))
            {
                Dictionary<string, bool> keys = new Dictionary<string, bool>();
                keys.Add(msgId, true);
                this._hasSubmit[curKey] = keys;
            }
            else
            {
                Dictionary<string, bool> keys = new Dictionary<string, bool>();
                keys.Add(msgId, true);
                this._hasSubmit.Add(curKey, keys);
            }

            DateTime now = DateTime.Now;
            int min = (int.Parse(now.ToString("mm")) / 10);
            //log4netService.Debug("addSubmitMessageToCache成功，总数：" + _hasSubmitMobile[min].Count);
        }
        private int[] getCheckKeys(int curKey)
        {
            if (curKey == 0)
            {
                return new int[] { 0, curKey + 5 };
            }

            return new int[] { curKey, curKey - 1 };

        }
        private bool isDelKey(int curKey, int delKey)
        {
            if (curKey == delKey) return false;

            if (curKey == 0 && delKey == 5)
            {
                return false;
            }
            if (delKey == curKey - 1) return false;

            //log4netService.Debug("移除成功，curKey=" + curKey);
            return true;
        }


        private void removeDict(int curKey)
        {
            List<int> keys = new List<int>();
            foreach (int key in this._hasSubmit.Keys)
            {
                if (key == curKey)
                {
                    continue;
                }
                if (this.isDelKey(curKey, key))
                {
                    keys.Add(key);
                    //keys[keys.Count] = key;
                    //this._hasSubmitMobile[key] = null;
                }

            }

            for (int i = 0; i < keys.Count; i++)
            {
                int key = keys[i];
                this._hasSubmit[key] = null;
            }
            //log4netService.Debug("removeDict正常:" + keys.Count);
        }

    }
}