using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Reflection;
using SA_LTT.Alarm;
using SA_LTT;

namespace SA_LTT_UI.Screen
{
    public partial class ScreenAlarmSetting : UserControl
    {
        private MainFrame _mainFrame;
        List<Alarm> alarms = new List<Alarm>();
        List<AlarmCode> changedAlarms = new List<AlarmCode>();
        public ScreenAlarmSetting(MainFrame mainFrame)
        {
            InitializeComponent();
            _mainFrame = mainFrame;
            changedAlarms.Clear();
            RefreshAlarmInfoDataGridView();
        }
        
        public void RefreshAlarmInfoDataGridView()
        {
            try
            {
                //Datagridview Double Buffer 사용.
                Type dgvType = dgv_AlarmInfos.GetType();
                PropertyInfo pi = dgvType.GetProperty("DoubleBuffered",
                      BindingFlags.Instance | BindingFlags.NonPublic);
                pi.SetValue(dgv_AlarmInfos, true, null);
                //================================

                alarms.Clear();
                alarms.AddRange(_mainFrame.equipment.alarmManager.GetAlarms().Values);
                
                dgv_AlarmInfos.DataSource = alarms;
                
                dgv_AlarmInfos.Columns["Code"].Width = 400;
                dgv_AlarmInfos.Columns["Code"].ReadOnly = false;
                dgv_AlarmInfos.Columns["Description"].Width = 1140;
                dgv_AlarmInfos.Columns["Heavy"].Width = 50;
                dgv_AlarmInfos.Columns["Light"].Width = 50;
                dgv_AlarmInfos.Columns["Level"].Visible = false;
                dgv_AlarmInfos.Columns["Use"].Width = 50;
                dgv_AlarmInfos.Columns["OccurredTime"].Width = 200;
                dgv_AlarmInfos.Columns["OccurredTime"].ReadOnly = false;

                foreach (DataGridViewColumn column in dgv_AlarmInfos.Columns)
                {
                    column.SortMode = DataGridViewColumnSortMode.NotSortable;
                }

                foreach (DataGridViewRow row in dgv_AlarmInfos.Rows)
                {
                    row.DefaultCellStyle.BackColor = Color.White;
                }

                dgv_AlarmInfos.Refresh();
            }
            catch (Exception e)
            {
                EquipmentLogManager.Instance.WriteExceptionLog(e.StackTrace);
            }
        }

        private void dgv_AlarmInfos_CellValueChanged_1(object sender, DataGridViewCellEventArgs e)
        {
            int rowIndex = e.RowIndex;
            
            Alarm alarm = _mainFrame.equipment.alarmManager.GetAlarms()[alarms[rowIndex].Code].Clone();
            
            if (alarm == alarms[rowIndex])
            {
                if (changedAlarms.Exists(x => x == alarm.Code))
                {
                    changedAlarms.Remove(alarm.Code);
                }

                dgv_AlarmInfos.Rows[rowIndex].DefaultCellStyle.BackColor = Color.White;
            }
            else
            {
                if (changedAlarms.Exists(x => x == alarm.Code) == false)
                {
                    changedAlarms.Add(alarm.Code);
                }

                dgv_AlarmInfos.Rows[rowIndex].DefaultCellStyle.BackColor = Color.Red;
            }
        }

        private void btn_Cancel_Click(object sender, EventArgs e)
        {
            EquipmentLogManager.Instance.WriteButtonLog($"{this.Name} : {((Control)sender).Text}");

            changedAlarms.Clear();
            RefreshAlarmInfoDataGridView();
        }

        private void btn_Save_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("변경사항을 저장 하시겠습니까?", "확인", MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                EquipmentLogManager.Instance.WriteButtonLog($"{this.Name} : {((Control)sender).Text}");
                
                _mainFrame.equipment.alarmManager.Save(alarms);
                RefreshAlarmInfoDataGridView();
            }
        }
    }
}