using System.Data;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using System.Security.Cryptography;
using System.Text;
using IotManager.Common;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.IdentityModel.Tokens;
using NLog;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;
using IotManager.private_key;
using ViewModels;
using ViewModels.Data;
using CommonEntity;
using MySQLAccess.PGModels;

namespace IotManager.Controllers
{
    [Route("api/[controller]/[action]")]
    [ApiController]
    public class ValuesController : ControllerBase
    {

        private readonly Logger _logger = LogManager.GetCurrentClassLogger();
        public IConfiguration? configuration { get; set; }
        public ValuesController(IConfiguration _configuration)
        {
            configuration = _configuration;
        }
        public string GetId(string device_name,string uuid)
        {
            string data = string.Format("boolive_{0}_{1}", device_name, uuid);
            // 密钥，用于生成MAC
            string key = "secretKey#&!";
            // 计算MAC
            byte[] mac = Base64.ComputeHMACSHA256Short(data, key);
            string str = Convert.ToBase64String(mac);
            return str;
        }

        [HttpGet()]
        public ReturnInfo GetAllInfo([FromBody] QueryData data)
        {

            ReturnInfo r = new ReturnInfo();
            try
            {
                using var context = new PostgresContext();
                var q = from dev in context.Deviceinfos
                        join emqx in context.EmqxLogininfos
                        on dev.Uuid equals emqx.DeviceUuid
                        into devinfo
                        from info in devinfo.DefaultIfEmpty()
                        select new { dev.ClientId, dev.ProductId, dev.DeviceName, dev.SecretKey, info.UserName, info.PassWord };

                var p = q.ToList();
                r.isok = true;
                r.response = p;
            }
            catch (Exception ex)
            {
                r.isok = false;
                r.message = ex.Message;
            }
            return r;

        }

        [HttpPost()]
        public ReturnInfo AddOrUpdateDeviceInfo([FromBody] BooliveDevice LLL)
        {
            ReturnInfo returnInfo = new ReturnInfo();

            try
            {
                using var D = new PostgresContext();
                if (LLL.Id != 0)
                {
                    var Q = D.Deviceinfos.SingleOrDefault(A => A.ClientId == LLL.Id);
                    Q.DeviceName = LLL.DeviceName;
                    Q.SecretKey = LLL.DeviceSecret;
                    var DT = DateTime.Now;
                    Q.UpdateTime = DT;
                    Q.UpdateTimeUnix = Tools.ToUnixTimestampBySeconds(DT);
                }
                else
                {
                    D.Database.BeginTransaction();
                    var DT = DateTime.Now;
                    var LT = Tools.ToUnixTimestampBySeconds(DT);
                    var LLL1 = new Deviceinfo();

                    var uuid = System.Guid.NewGuid().ToString("N");
                    LLL1.Uuid = uuid;
                    LLL1.CreateTime = DT;
                    LLL1.UpdateTime = DT;

                    LLL1.CreateTimeUnix = LT;
                    LLL1.UpdateTimeUnix = LT;

                    D.Deviceinfos.Add(LLL1);

                    EmqxLogininfo l = new EmqxLogininfo();
                    l.DeviceUuid = uuid;
                    l.UserName = LLL.DeviceName;
                    l.PassWord = GetId(l.UserName,uuid);
                    l.UpdateTime = DT;
                    l.UpdateTimeUnix = LT;
                    l.CreateTime = DT;
                    l.CreateTimeUnix = LT;

                    D.EmqxLogininfos.Add(l);


                    D.SaveChanges();
                    D.Database.CommitTransaction();
                }
                returnInfo.isok = true;
            }
            catch (Exception ex)
            {
                returnInfo.isok = false;
                returnInfo.message = ex.Message;
            }
            return returnInfo;
        }


        [HttpDelete()]
        public ReturnInfo DeleteDeviceInfo([FromBody] BooliveDevice LLL)
        {
            ReturnInfo r = new ReturnInfo();
            try
            {
                using var Q = new PostgresContext();

                Q.Database.BeginTransaction();
                var a = Q.Deviceinfos.SingleOrDefault(A => A.ClientId == LLL.Id);
                Q.Deviceinfos.Remove(a);

                var b = Q.EmqxLogininfos.SingleOrDefault(A => A.DeviceUuid.Equals(a.Uuid));
                Q.EmqxLogininfos.Remove(b);

                Q.SaveChanges();

                Q.Database.CommitTransaction();
                r.isok = true;
            }
            catch (Exception ex)
            {
                r.isok = false;
                r.message = ex.Message;
            }
            return r;
        }
    }
}