using JiangsuEarthquake.Common;
using JiangsuEarthquake.DataAccess;
using JiangsuEarthquake.Models;
using JiangsuEarthquake.Views.UserControls;
using MySql.Data.MySqlClient;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media;
using System.Windows.Threading;
using Application = System.Windows.Application;
using Brush = System.Windows.Media.Brush;

namespace JiangsuEarthquake.ViewModels
{
    public class AlarmRecordViewModel : NotifyBase
    {

        #region Search Data
        private DateTime _startDateTime;

        public DateTime StartDateTime
        {
            get { return _startDateTime; }
            set { Set(ref _startDateTime, value); }
        }

        private DateTime _endDateTime;

        public DateTime EndDateTime
        {
            get { return _endDateTime; }
            set { Set(ref _endDateTime, value); }
        }

        int PageIndex = 0;

        private int recordCount;

        public int RecordCount
        {
            get { return recordCount; }
            set { recordCount = value; this.DoNotify(); }
        }

        private int totalPage;

        public int TotalPage
        {
            get { return totalPage; }
            set { totalPage = value; this.DoNotify(); }
        }

        private string alarmMsg;

        public string AlarmMsg
        {
            get { return alarmMsg; }
            set { alarmMsg = value; this.DoNotify(); }
        }
        #endregion


        private ObservableCollection<AlarmRecordModel> alarmRecordList = new ObservableCollection<AlarmRecordModel>();

        public ObservableCollection<AlarmRecordModel> AlarmRecordList
        {
            get { return alarmRecordList; }
            set { alarmRecordList = value; this.DoNotify(); }
        }

        private ObservableCollection<AlarmRecordModel> totalAlarmRecordList = new ObservableCollection<AlarmRecordModel>();

        public ObservableCollection<AlarmRecordModel> TotalAlarmRecordList
        {
            get { return totalAlarmRecordList; }
            set { totalAlarmRecordList = value; this.DoNotify(); }
        }


        #region CommandBase Define
        public CommandBase ForwordAlarmCommand { get; set; } 

        public CommandBase NextAlarmCommand { get; set; }

        public CommandBase RefreshDataCommand { get; set; }

        public CommandBase DownloadDataCommand { get; set; }
        #endregion


        int station_id = 1;

        string timeSearch = "";

        public DispatcherTimer timerDownloadDataMsgHidden = new DispatcherTimer();


        #region Data Filtering
        public static DialogViewModel vm;

        private bool _isChecked;

        public bool IsChecked
        {
            get { return _isChecked; }
            set
            {
                _isChecked = value;
                this.DoNotify();

                if (IsChecked)
                {
                    if (string.IsNullOrEmpty(EndDateTime.ToString()) || string.IsNullOrEmpty(StartDateTime.ToString()))
                    {
                        IsChecked = false;
                        return;
                    }

                    if (EndDateTime < StartDateTime)
                    {
                        HandyControl.Controls.Dialog.Show(new TextDialog("起始时间大于结束时间，\n请重新输入！"));
                        IsChecked = false;
                        //this.EndDateTime = DateTime.Now;
                        //this.StartDateTime = DateTime.Now.AddDays(-1);
                        return;
                    }

                    timeSearch = " and RecordTime BETWEEN '" + StartDateTime + "' and '" + EndDateTime + "' ";
                }
                else
                {
                    timeSearch = "";
                }

                //设置当前页为1
                PageIndex = 1;

                TotalAlarmRecordList.Clear();
                AlarmRecordList.Clear();

                string sql = String.Format("select * from alarm_info where StationID = {0} {1} ORDER by id desc limit 100", station_id, timeSearch);
                MySqlDataReader dataReader = DBHelper.ExecuteReader(sql, 1);
                int index = 1;
                while (dataReader.Read())
                {
                    AlarmRecordModel alarmRecordModel = new AlarmRecordModel();
                    alarmRecordModel.Index = index++;
                    alarmRecordModel.RecordTime = Convert.ToDateTime(dataReader["RecordTime"]);
                    alarmRecordModel.ParaName = dataReader["ParaName"].ToString();
                    alarmRecordModel.ParaNum = Convert.ToInt32(string.IsNullOrEmpty(dataReader["ParaNum"].ToString()) ? 0 : dataReader["ParaNum"]);
                    alarmRecordModel.ParaContent = dataReader["ParaContent"].ToString();
                    alarmRecordModel.ProcessingMethod = dataReader["ProcessingMethod"].ToString();
                    if (dataReader["UrgencyLevel"].ToString() == "1")
                    {
                        alarmRecordModel.UrgencyLevel = (ImageSource)Application.Current.FindResource("CycleRed");
                    }
                    else if (dataReader["UrgencyLevel"].ToString() == "2")
                    {
                        alarmRecordModel.UrgencyLevel = (ImageSource)Application.Current.FindResource("CycleOrange");
                    }
                    else
                    {
                        alarmRecordModel.UrgencyLevel = (ImageSource)Application.Current.FindResource("CycleYellow");
                    }
                    if (dataReader["IsHandled"].ToString() == "0")
                    {
                        alarmRecordModel.IsHandled = "未处理";
                    }
                    else if (dataReader["IsHandled"].ToString() == "1")
                    {
                        alarmRecordModel.IsHandled = "已处理";
                    }
                    else
                    {
                        alarmRecordModel.IsHandled = "处理中";
                    }
                    TotalAlarmRecordList.Add(alarmRecordModel);
                }
                dataReader.Dispose();

                RecordCount = index - 1;
                if (RecordCount <= 10)
                {
                    TotalPage = 1;

                    AlarmRecordList = new ObservableCollection<AlarmRecordModel>();
                    AlarmRecordList = TotalAlarmRecordList;
                }
                else
                {
                    TotalPage = (int)Math.Ceiling((double)RecordCount / 10);

                    AlarmRecordList = new ObservableCollection<AlarmRecordModel>();

                    for (int i = 0; i < 10; i++)
                    {
                        AlarmRecordList.Add(TotalAlarmRecordList[i]);
                    }
                }

                AlarmMsg = string.Format("共计{0}页，当前第{1}页", TotalPage, PageIndex);

                string record = "查询告警记录历史记录，查询时间范围为：" + StartDateTime + "至" + EndDateTime + "，共查询到" + RecordCount + "条历史记录";

                sql = $"insert into log_record(StationID,RecordTime,Device_Name,Operation_Type,Record) values('{station_id}','{DateTime.Now}','海底地震监测基站','数据查询','{record}');";
                DBHelper.ExecuteNonQuery(sql, 1);
            }
        }
        #endregion


        public AlarmRecordViewModel(int id)
        {
            // 默认查询1天内的日志
            this.EndDateTime = DateTime.Now;
            this.StartDateTime = DateTime.Now.AddDays(-1);

            PageIndex = 1;
            station_id = id;

            vm = new DialogViewModel
            {
                Content = ""
            };


            #region Command Set
            this.ForwordAlarmCommand = new CommandBase();
            this.ForwordAlarmCommand.DoExcute = new Action<object>(ForwordAlarm);
            this.ForwordAlarmCommand.DoCanExcute = new Func<object, bool>((o) => true);

            this.NextAlarmCommand = new CommandBase();
            this.NextAlarmCommand.DoExcute = new Action<object>(NextAlarm);
            this.NextAlarmCommand.DoCanExcute = new Func<object, bool>((o) => true);

            this.RefreshDataCommand = new CommandBase();
            this.RefreshDataCommand.DoExcute = new Action<object>(RefreshData);
            this.RefreshDataCommand.DoCanExcute = new Func<object, bool>((o) => true);

            this.DownloadDataCommand = new CommandBase();
            this.DownloadDataCommand.DoExcute = new Action<object>(DownloadData);
            this.DownloadDataCommand.DoCanExcute = new Func<object, bool>((o) => true);
            #endregion


            timerDownloadDataMsgHidden.Interval = TimeSpan.FromSeconds(2);
            timerDownloadDataMsgHidden.Tick += TimerDownloadDataMsgHidden_Tick;
        }


        #region RefreshData
        public void RefreshData(object o)
        {
            if (IsChecked)
            {
                timeSearch = " and RecordTime BETWEEN '" + StartDateTime + "' and '" + EndDateTime + "' ";
            }
            else
            {
                timeSearch = "";
            }

            //设置当前页为1
            PageIndex = 1;

            TotalAlarmRecordList.Clear();
            AlarmRecordList.Clear();

            string sql = String.Format("select * from alarm_info where StationID = {0} {1} ORDER by id desc limit 100", station_id, timeSearch);
            MySqlDataReader dataReader = DBHelper.ExecuteReader(sql, 1);
            int index = 1;
            while (dataReader.Read())
            {
                AlarmRecordModel alarmRecordModel = new AlarmRecordModel();
                alarmRecordModel.Index = index++;
                alarmRecordModel.RecordTime = Convert.ToDateTime(dataReader["RecordTime"]);
                alarmRecordModel.ParaName = dataReader["ParaName"].ToString();
                alarmRecordModel.ParaNum = Convert.ToInt32(string.IsNullOrEmpty(dataReader["ParaNum"].ToString()) ? 0 : dataReader["ParaNum"]);
                alarmRecordModel.ParaContent = dataReader["ParaContent"].ToString();
                alarmRecordModel.ProcessingMethod = dataReader["ProcessingMethod"].ToString();
                if (dataReader["UrgencyLevel"].ToString() == "1")
                {
                    alarmRecordModel.UrgencyLevel = (ImageSource)Application.Current.FindResource("CycleRed");
                }
                else if (dataReader["UrgencyLevel"].ToString() == "2")
                {
                    alarmRecordModel.UrgencyLevel = (ImageSource)Application.Current.FindResource("CycleOrange");
                }
                else
                {
                    alarmRecordModel.UrgencyLevel = (ImageSource)Application.Current.FindResource("CycleYellow");
                }
                if (dataReader["IsHandled"].ToString() == "0")
                {
                    alarmRecordModel.IsHandled = "未处理";
                }
                else if (dataReader["IsHandled"].ToString() == "1")
                {
                    alarmRecordModel.IsHandled = "已处理";
                }
                else
                {
                    alarmRecordModel.IsHandled = "处理中";
                }
                TotalAlarmRecordList.Add(alarmRecordModel);
            }
            dataReader.Dispose();

            RecordCount = index - 1;
            if (RecordCount <= 10)
            {
                TotalPage = 1;

                AlarmRecordList = new ObservableCollection<AlarmRecordModel>();
                AlarmRecordList = TotalAlarmRecordList;
            }
            else
            {
                TotalPage = (int)Math.Ceiling((double)RecordCount / 10);

                AlarmRecordList = new ObservableCollection<AlarmRecordModel>();

                for (int i = 0; i < 10; i++)
                {
                    AlarmRecordList.Add(TotalAlarmRecordList[i]);
                }
            }

            AlarmMsg = string.Format("共计{0}页，当前第{1}页", TotalPage, PageIndex);

            sql = $"insert into log_record(StationID,RecordTime,Device_Name,Operation_Type,Record) values('{station_id}','{DateTime.Now}','海底地震监测基站','数据刷新','刷新告警记录');";
            DBHelper.ExecuteNonQuery(sql, 1);
        }
        #endregion


        #region DownloadData
        private void TimerDownloadDataMsgHidden_Tick(object sender, EventArgs e)
        {
            DownloadDataMsgVisibility = Visibility.Hidden;

            // 停止定时器
            (sender as DispatcherTimer).Stop();
        }

        private string downloadDataMsg;

        public string DownloadDataMsg
        {
            get { return downloadDataMsg; }
            set { downloadDataMsg = value; this.DoNotify(); }
        }

        private Brush downloadDataMsgForeground;

        public Brush DownloadDataMsgForeground
        {
            get { return downloadDataMsgForeground; }
            set { downloadDataMsgForeground = value; this.DoNotify(); }
        }

        private bool downloadDataBtnIsEnabled = true;

        public bool DownloadDataBtnIsEnabled
        {
            get { return downloadDataBtnIsEnabled; }
            set { downloadDataBtnIsEnabled = value; this.DoNotify(); }
        }

        private Visibility downloadDataMsgVisibility = Visibility.Visible;

        public Visibility DownloadDataMsgVisibility
        {
            get { return downloadDataMsgVisibility; }
            set { downloadDataMsgVisibility = value; this.DoNotify(); }
        }

        public void DownloadData(object o)
        {
            DownloadDataBtnIsEnabled = false;

            string baseStationFolder = Tools.GetAppSetting("AlarmRecordFolder");
            string savePath = CSVDownload.CreateFile(baseStationFolder, "AlarmRecord_" + DateTime.Now.ToString("yyyyMMddhhMMss"), "csv");

            bool result = CSVDownload.SaveAlarmRecordDataToCSVFile(TotalAlarmRecordList, savePath);
            if (result)
            {
                DownloadDataMsg = "下载数据成功！";
                DownloadDataMsgVisibility = Visibility.Visible;
                DownloadDataMsgForeground = new SolidColorBrush(Colors.Green);
            }
            else
            {
                DownloadDataMsg = "下载数据失败！";
                DownloadDataMsgVisibility = Visibility.Visible;
                DownloadDataMsgForeground = new SolidColorBrush(Colors.Red);
            }

            timerDownloadDataMsgHidden.Start();
            DownloadDataBtnIsEnabled = true;

            string record = "下载告警记录，" + DownloadDataMsg;

            string sql = $"insert into log_record(StationID,RecordTime,Device_Name,Operation_Type,Record) values('{station_id}','{DateTime.Now}','海底地震监测基站','数据下载','{record}');";
            DBHelper.ExecuteNonQuery(sql, 1);
        }
        #endregion


        #region Page Switching
        public void ForwordAlarm(object o)
        {
            if (PageIndex == 1)
                return;

            try
            {
                PageIndex -= 1;

                AlarmRecordList.Clear();
                for (int i = 0; i < 10; i++)
                {
                    AlarmRecordList.Add(TotalAlarmRecordList[i + (PageIndex - 1) * 10]);
                }
                AlarmMsg = string.Format("共计{0}页，当前第{1}页", TotalPage, PageIndex);
            }
            catch
            {
                TotalAlarmRecordList.Clear();
                AlarmRecordList.Clear();
            }
        }

        public void NextAlarm(object o)
        {
            if (PageIndex == TotalPage)
                return;

            try
            {
                PageIndex += 1;

                AlarmRecordList.Clear();
                for (int i = 0; i < (PageIndex == TotalPage ? (RecordCount - (PageIndex - 1) * 10) : 10); i++)
                {
                    AlarmRecordList.Add(TotalAlarmRecordList[i + (PageIndex - 1) * 10]);
                }
                AlarmMsg = string.Format("共计{0}页，当前第{1}页", TotalPage, PageIndex);
            }
            catch(Exception ex)
            {
                RefreshData(null);
            }
        }
        #endregion

    }
}