using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using EntityDataSet;
using libzkfpcsharp;

namespace IntelligentControlForsx.Service.FingerSvc
{
    public class UserSvc
    {
        /// <summary>
        /// 存储所有用户信息,key为用户指纹模板，value为用户实体
        /// </summary>
        public static Dictionary<byte[], user> userDic = new Dictionary<byte[], user>();
        private static UserSvc svc = new UserSvc();
        private UserSvc()
        {
        }

        public static UserSvc GetUserSvc()
        {
            return svc;
        }

        /// <summary>
        /// 管理员登录验证
        /// </summary>
        /// <param name="mDBHandle">验证句柄</param>
        /// <param name="fingerTemp">输入的指纹</param>
        /// <returns></returns>
        public bool AdminUserCheck(IntPtr mDBHandle, byte[] fingerTemp)
        {
            bool IsCheckSuccess = false;
            foreach (KeyValuePair<byte[], user> kv in userDic)
            {
                int checkScore = zkfp2.DBMatch(mDBHandle, fingerTemp, kv.Key);
                if (checkScore > 0)
                {
                    if (kv.Value.user_name == "admin")
                    {
                        IsCheckSuccess = true;
                    }
                }
            }

            return IsCheckSuccess;
        }
        /// <summary>
        /// 登录验证
        /// </summary>
        /// <param name="mDBHandle">句柄</param>
        /// <param name="fingerTemp">输入指纹</param>
        /// <returns>符合输入指纹的用户</returns>
        public user LoginUserCheck(IntPtr mDBHandle, byte[] fingerTemp)
        {

            user loginUser = null;

            foreach (KeyValuePair<byte[], user> kv in userDic)
            {
                int checkScore = zkfp2.DBMatch(mDBHandle, fingerTemp, kv.Key);
                if (checkScore > 0)
                {
                    loginUser = kv.Value;
                    break;
                }
            }
            return loginUser;
        }

        /// <summary>
        /// 用户初始化(将关系库中所有的用户添加到缓存)
        /// </summary>
        public void InitUser()
        {
            Dictionary<byte[], user> dic = new Dictionary<byte[], user>();

            using (wisdom_cs_entity ctx = new wisdom_cs_entity())
            {
                IList<user> list = ctx.user.Select(s => s).ToList();
                for (int i = 0; i < list.Count; i++)
                {
                    if (list[i].finger1_template != null)
                        dic.Add(list[i].finger1_template, list[i]);
                    if (list[i].finger2_template != null)
                        dic.Add(list[i].finger2_template, list[i]);
                    if (list[i].finger3_template != null)
                        dic.Add(list[i].finger3_template, list[i]);
                    if (list[i].finger4_template != null)
                        dic.Add(list[i].finger4_template, list[i]);
                    if (list[i].finger5_template != null)
                        dic.Add(list[i].finger5_template, list[i]);
                    if (list[i].finger6_template != null)
                        dic.Add(list[i].finger6_template, list[i]);
                    if (list[i].finger7_template != null)
                        dic.Add(list[i].finger7_template, list[i]);
                    if (list[i].finger8_template != null)
                        dic.Add(list[i].finger8_template, list[i]);
                    if (list[i].finger9_template != null)
                        dic.Add(list[i].finger9_template, list[i]);
                    if (list[i].finger10_template != null)
                        dic.Add(list[i].finger10_template, list[i]);
                }
                userDic = dic;
            }
        }


        /// <summary>
        /// 注册用户
        /// </summary>
        /// <param name="user"></param>
        /// <returns></returns>
        public int RegisterUser(user user)
        {
            using (wisdom_cs_entity ctx = new wisdom_cs_entity())
            {

                ctx.Entry(user).State = EntityState.Added;

                int count = ctx.SaveChanges();
                return count;
            }
        }
    }
}