using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Windows.Forms;

namespace SHARP_CLAS_UI.Screen
{
    public partial class Form_Log : Form
    {
        #region Enum
        enum Logs
        {
            None,
            Button,
            Alarm,
            Interlock,
        }
        #endregion

        #region Field
        Form_Frame _Parent;

        Logs Current_Log;
        #endregion

        #region Construct
        public Form_Log(Form_Frame _Parent)
        {
            InitializeComponent();
            this._Parent = _Parent;
            Current_Log = Logs.None;
        }
        #endregion

        #region Form_Function
        private void btn_Date_Log_Open_Click(object sender, EventArgs e)
        {
            string root_path = Get_Log_Path();

            if(root_path == null)
            {
                MessageBox.Show("Please Check Log.");
                return;
            }
            
            DateTime dt_start = dtp_Start_Date.Value;
            DateTime dt_end = dtp_End_Date.Value;

            if (dtp_Start_Date.Value.Year > dtp_End_Date.Value.Year || 
                (dtp_Start_Date.Value.Year == dtp_End_Date.Value.Year && dtp_Start_Date.Value.DayOfYear > dtp_End_Date.Value.DayOfYear))
            {
                MessageBox.Show("Please Check Date.");
                return;
            }


            lv_Log_Data.Items.Clear();

            while(true)
            {
                try
                {
                    string file_path = root_path + $"{dt_start.Year}\\{dt_start.Month:d2}\\{Current_Log}_{dt_start.Day:d2}.csv";

                    Log_Date_Set(file_path);

                    if (dt_start.Year == dt_end.Year && dt_start.Month == dt_end.Month && dt_start.Day == dt_end.Day)
                        break;
                    else
                        dt_start = dt_start.AddDays(1.0);
                }
                catch(Exception)
                {
                    break;
                }
            }
        }

        private void btn_Time_Log_Open_Click(object sender, EventArgs e)
        {
            string root_path = Get_Log_Path();

            if (root_path == null)
            {
                MessageBox.Show("Please Check Log.");
                return;
            }

            if (dtp_Start_Time.Value.TimeOfDay > dtp_End_Time.Value.TimeOfDay)
            {
                MessageBox.Show("Please Check Time.");
                return;
            }

            DateTime dt_start = dtp_Start_Date.Value;
            lv_Log_Data.Items.Clear();
            
            try
            {
                string file_path = root_path + $"{dt_start.Year}\\{dt_start.Month}\\{Current_Log}_{dt_start.Day}.csv";

                Log_Time_Set(file_path, dtp_Start_Time.Value, dtp_End_Time.Value);
            }
            catch (Exception)
            {

            }
        }

        private void btn_Alarm_Log_Click(object sender, EventArgs e)
        {
            lv_Log_Data.Items.Clear();
            lv_Log_Data.Columns.Clear();

            lv_Log_Data.Columns.Add("Date", 150);
            lv_Log_Data.Columns.Add("Code", 525);
            lv_Log_Data.Columns.Add("Description", 900);
            Current_Log = Logs.Alarm;
        }
        #endregion

        #region Function
        public void Set_Language()
        {
            try
            {
                lb_Select_data.Text = "■" + resLanguage.SELECT_DATE;

                lb_Start.Text = resLanguage.Start;
                lb_End.Text = resLanguage.END;
                btn_Date_Log_Open.Text = resLanguage.SELECT;

                lb_Start_1.Text = resLanguage.Start;
                lb_End_1.Text = resLanguage.END;
                btn_Time_Log_Open.Text = resLanguage.SELECT;

                btn_Open_Folder.Text = resLanguage.OPEN_FOLDER;
                btn_Save_File_CSV.Text = resLanguage.SAVE_TO_CSV;

                rb_Button_Log.Text = resLanguage.BUTTON;
                rb_Alarm_Log.Text = resLanguage.Alarm;
                rb_Interlock_Log.Text = resLanguage.INTERLOCK;
            }
            catch(Exception ex)
            {

            }
        }

        private string Get_Log_Path()
        {
            string str = null;

            switch(Current_Log)
            {
                case Logs.Button:
                    {
                        str = "D:\\Logger\\Button\\";
                        break;
                    }
                case Logs.Alarm:
                    {
                        str = "D:\\Logger\\Alarm\\";
                        break;
                    }
                case Logs.Interlock:
                    {
                        str = "D:\\Logger\\Interlock\\";
                        break;
                    }
            }

            return str;
        }

        private bool Log_Date_Set(string filepath)
        {
            List<string> list_st = new List<string>();

            if (!File.Exists(filepath))
                return false;

            using (FileStream fs = new FileStream(filepath, FileMode.Open))
            {
                using (StreamReader sr = new StreamReader(fs))
                {
                    while (true)
                    {
                        try
                        {
                            string str = sr.ReadLine();
                            if (str == string.Empty || str == null)
                                break;

                            string[] procstr = str.Split(',');

                            list_st.Add($"{procstr[0]}\t{procstr[1]}\t{procstr[2]}");
                        }
                        catch (Exception)
                        {

                        }
                    }
                }
            }

            foreach (string str in list_st.ToArray())
            {
                ListViewItem lvi = new ListViewItem(str.Split('\t'));
                lv_Log_Data.Items.Add(lvi);
            }

            return true;
        }
        
        private bool Log_Time_Set(string filepath, DateTime start_time, DateTime end_time)
        {
            List<string> list_st = new List<string>();

            if (!File.Exists(filepath))
                return false;

            using (FileStream fs = new FileStream(filepath, FileMode.Open))
            {
                using (StreamReader sr = new StreamReader(fs))
                {
                    while (true)
                    {
                        try
                        {
                            string str = sr.ReadLine();
                            if (str == string.Empty || str == null)
                                break;

                            string[] procstr = str.Split(',');

                            DateTime dt = DateTime.Parse(procstr[0]);

                            if(start_time.TimeOfDay.Ticks <= dt.TimeOfDay.Ticks && dt.TimeOfDay.Ticks <= end_time.TimeOfDay.Ticks)
                            {
                                list_st.Add($"{procstr[0]}\t{procstr[1]}\t{procstr[2]}");
                            }
                        }
                        catch (Exception)
                        {

                        }
                    }
                }
            }

            foreach (string str in list_st.ToArray())
            {
                ListViewItem lvi = new ListViewItem(str.Split('\t'));
                lv_Log_Data.Items.Add(lvi);
            }

            return true;
        }
        #endregion
        private void btn_Open_Folder_Click(object sender, EventArgs e)
        {
            string root_path = Get_Log_Path();

            if (root_path == null)
            {
                MessageBox.Show("Please Check Log.");
                return;
            }

            if (Directory.Exists(root_path))
                System.Diagnostics.Process.Start(root_path);
            else
                MessageBox.Show($"{root_path} is not exist.");
        }

        private void btn_Save_File_CSV_Click(object sender, EventArgs e)
        {
            if (lv_Log_Data.Items.Count == 0)
            {
                return;
            }

            SaveFileDialog dialog = new SaveFileDialog();
            dialog.Title = "파일 저장하기";
            dialog.Filter = "CSV 파일|*.csv|Text 파일|*.txt";
            dialog.InitialDirectory = "D:\\";
            dialog.FileName = $"{Current_Log.ToString()}";
            if (dialog.ShowDialog() != DialogResult.OK)
                return;

            string selectPath = dialog.FileName;

            using (StreamWriter outPutFile = new StreamWriter(selectPath, false, Encoding.Default))
            {
                string rows = "";

                foreach (ColumnHeader header in lv_Log_Data.Columns)
                {
                    rows += header.Text + ",";
                }

                rows = rows.Substring(0, rows.Length - 1);
                outPutFile.WriteLine(rows, Encoding.Default);

                foreach (ListViewItem lvi in lv_Log_Data.Items)
                {
                    rows = "";
                    foreach (ListViewItem.ListViewSubItem str in lvi.SubItems)
                        rows += str.Text + ",";
                    rows = rows.Substring(0, rows.Length - 1);
                    outPutFile.WriteLine(rows, Encoding.Default);
                }
            }
        }
        private void rb_Log_CheckedChanged(object sender, EventArgs e)
        {
            RadioButton rb = (RadioButton)sender;

            if (!rb.Checked) return;

            if (rb == rb_Button_Log)
            {
                lv_Log_Data.Items.Clear();
                lv_Log_Data.Columns.Clear();

                lv_Log_Data.Columns.Add("Date", 150);
                lv_Log_Data.Columns.Add("Button", 525);
                lv_Log_Data.Columns.Add("Description", 900);
                Current_Log = Logs.Button;
            }
            else if (rb == rb_Alarm_Log)
            {
                lv_Log_Data.Items.Clear();
                lv_Log_Data.Columns.Clear();

                lv_Log_Data.Columns.Add("Date", 150);
                lv_Log_Data.Columns.Add("Code", 525);
                lv_Log_Data.Columns.Add("Description", 900);
                Current_Log = Logs.Alarm;
            }
            else if(rb == rb_Interlock_Log)
            {
                lv_Log_Data.Items.Clear();
                lv_Log_Data.Columns.Clear();

                lv_Log_Data.Columns.Add("Date", 150);
                lv_Log_Data.Columns.Add("Code", 525);
                lv_Log_Data.Columns.Add("Description", 900);
                Current_Log = Logs.Interlock;
            }
        }
    }
}