using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ExcelImprot
{
    public partial class MainWindow : Form
    {
        private DataTable _objReadData;

        private delegate void ProgressbarDelegate(bool bEnable);
        private delegate void DataSourceDelegate(DataTable objData);
        private delegate void ColumnAutosizeDelegate();

        private string _strFileNameCandidate;

        private bool _bLargeData = false;

        public MainWindow()
        {
            InitializeComponent();
            InitVariables();

            typeof(DataGridView).InvokeMember("DoubleBuffered", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.SetProperty, null, grdData, new object[] { true });
            grdData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.None;
        }

        private void InitVariables()
        {
            _objReadData = new DataTable();
            grdData.DataSource = null;
            GC.Collect();

            OnProgress(false);
        }

        private void OnProgress(bool bEnable)
        {
            if (InvokeRequired)
            {
                ProgressbarDelegate objProgressbarDelegate = new ProgressbarDelegate(OnProgress);
                Invoke(objProgressbarDelegate, bEnable);
            }
            else
            {
                mnuMainStrip.Enabled = !bEnable;
                grdData.Enabled = !bEnable;

                if (bEnable)
                {
                    objProgress.Style = ProgressBarStyle.Marquee;
                    objProgress.MarqueeAnimationSpeed = 30;
                }
                else
                {
                    objProgress.MarqueeAnimationSpeed = 0;
                    objProgress.Value = 0;
                    objProgress.Style = ProgressBarStyle.Blocks;
                }
            }
        }

        private void GridDataBind(DataTable objDataTable)
        {
            if (InvokeRequired)
            {
                DataSourceDelegate objDataSourceDelegate = new DataSourceDelegate(GridDataBind);
                Invoke(objDataSourceDelegate, objDataTable);
            }
            else
            {
                grdData.DataSource = null;
                grdData.DataSource = objDataTable;
            }
        }

        private void ReadExcel(object objPath)
        {
            OnProgress(true);

            _objReadData = new DataTable();
            _objReadData = MainController.GetInstance().OpenedExcel.ReadAsDataTableFromOpenedExcel(objPath.ToString(), 1, true);

            if (_objReadData != null)
                GridDataBind(_objReadData);

            OnProgress(false);
        }

        private void SaveExcel(object objPath)
        {
            OnProgress(true);

            StringBuilder objStringBuilder = new StringBuilder();
            foreach (DataGridViewRow objThisRow in grdData.Rows)
            {
                if (objThisRow.Index == grdData.Rows.Count - 1)
                    continue;

                List<string> objRowValues = new List<string>();
                for (int i = 0; i < objThisRow.Cells.Count; i++)
                {
                    object objThisValue = objThisRow.Cells[i].Value;
                    if (objThisValue == null)
                    {
                        objRowValues.Add("");
                    }
                    else
                    {
                        string strValue = objThisValue.ToString();
                        if (strValue.Contains(','))
                            objRowValues.Add(string.Format("\"{0}\"", strValue));
                        else
                            objRowValues.Add(strValue);
                    }
                }
                objStringBuilder.AppendLine(string.Join(",", objRowValues.ToArray()));
            }

            try
            {
                File.WriteAllText(objPath.ToString(), objStringBuilder.ToString(), Encoding.UTF8);
            }
            catch (Exception ex)
            {
                MessageBox.Show("다음과 같은 이유로 저장에 실패하였습니다." + Environment.NewLine + ex.Message, "저장 실패", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }

            OnProgress(false);
        }

        private void mnuNew_Click(object sender, EventArgs e)
        {
            DialogResult objDlgResult = MessageBox.Show("정말 새로 시작하시겠습니까?", "알림", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
            if (objDlgResult != DialogResult.Yes)
                return;

            _strFileNameCandidate = "";
            InitVariables();
        }


        private void mnuOpen_Click(object sender, EventArgs e)
        {
            OpenFileDialog objDlg = new OpenFileDialog();
            objDlg.Filter = "Excel files (*.xls,*xlsx)|*.xls;*xlsx|All files (*.*)|*.*";
            if (objDlg.ShowDialog() == DialogResult.OK)
            {
                string strPath = objDlg.FileName;
                _strFileNameCandidate = Path.GetFileNameWithoutExtension(strPath);

                if (!File.Exists(strPath))
                {
                    MessageBox.Show("선택한 파일이 존재하지 않습니다.", "에러", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }

                Thread objReadThread = new Thread(new ParameterizedThreadStart(ReadExcel));
                objReadThread.Start(strPath);
            }
        }

        private void mnuSave_Click(object sender, EventArgs e)
        {
            SaveFileDialog objDlg = new SaveFileDialog();
            objDlg.Filter = ".csv 파일|*.csv|모든파일|*.*";
            objDlg.FileName = _strFileNameCandidate;
            if (objDlg.ShowDialog() == DialogResult.OK)
            {
                string strPath = objDlg.FileName;

                Thread objSaveThread = new Thread(new ParameterizedThreadStart(SaveExcel));
                objSaveThread.Start(strPath);
            }
        }

        private void mnuExit_Click(object sender, EventArgs e)
        {
            if (MainController.GetInstance().OpenedExcel != null)
                MainController.GetInstance().OpenedExcel.CloseOpenedExcel();

            Application.ExitThread();
            Application.Exit();
            System.Diagnostics.Process.GetCurrentProcess().Kill();
        }

        private void grdData_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
        {
            DataGridView objGrid = sender as DataGridView;
            int iRowShowIndex = e.RowIndex + 1;

            StringFormat objFormat = new StringFormat()
            {
                Alignment = StringAlignment.Center,
                LineAlignment = StringAlignment.Center
            };

            Rectangle objHeaderRect = new Rectangle(e.RowBounds.Left, e.RowBounds.Top, grdData.RowHeadersWidth, e.RowBounds.Height);
            e.Graphics.DrawString(iRowShowIndex.ToString(), this.Font, SystemBrushes.ControlText, objHeaderRect, objFormat);
        }

        private void MainWindow_FormClosing(object sender, FormClosingEventArgs e)
        {
            mnuExit_Click(sender, e);
        }

        private void mnuExcelSave_Click(object sender, EventArgs e)
        {
            //DataTable objDataTable = new DataTable();
            //List<DataRow> objDataRowList = new List<DataRow>();
            //// 헤더생성
            //objDataTable.Columns.Add("판매오더");
            //objDataTable.Columns.Add("품목");
            //objDataTable.Columns.Add("타입");
            //objDataTable.Columns.Add("품번");
            //objDataTable.Columns.Add("품명");
            //objDataTable.Columns.Add("고객명");
            //objDataTable.Columns.Add("납기일");

            //int iCurrentIdx = 6;
            //Dictionary<string, int> objColumnIdx = new Dictionary<string, int>(); // Key : 공정코드, Value : 데이터테이블 인덱스
            //foreach (KeyValuePair<Guid, LMProcess> objThisProcessMaster in _objPlanSimulator.DataSource.ProcessMasters)
            //{
            //    iCurrentIdx++;
            //    string strProcessCode = objThisProcessMaster.Value.Code;
            //    objDataTable.Columns.Add(strProcessCode);
            //    objColumnIdx.Add(strProcessCode, iCurrentIdx);
            //}

            //// 본문 채우기
            //foreach (string strThisOrderKey in uclSimulationResultByOrder.OrderKeys)
            //{
            //    LMOrder objThisOrder = uclSimulationResultByOrder.SelectOrder(strThisOrderKey);
            //    if (objThisOrder == null)
            //        continue;

            //    DataRow objDataRow = objDataTable.NewRow();
            //    objDataRow[0] = objThisOrder.SalesOrderID;
            //    objDataRow[1] = objThisOrder.SalesOrderSub;
            //    if (_objPlanSimulator.DataSource.Products.ContainsKey(objThisOrder.ProductID))
            //        objDataRow[2] = _objPlanSimulator.DataSource.Products[objThisOrder.ProductID].ProductGroupName;
            //    else
            //        objDataRow[2] = objThisOrder.ModelType;
            //    objDataRow[3] = objThisOrder.ProductID;
            //    objDataRow[4] = objThisOrder.ProductName;
            //    objDataRow[5] = objThisOrder.Customer;
            //    objDataRow[6] = objThisOrder.DeliveryDate.ToString("yyyy-MM-dd");
            //    for (int i = 7; i < 7 + objColumnIdx.Count; i++)
            //    {
            //        objDataRow[i] = "없음";
            //    }

            //    List<SimResultByOrderBindingClass> objSelectedOrderData = uclSimulationResultByOrder.SelectedOrderData(strThisOrderKey);
            //    foreach (SimResultByOrderBindingClass objData in objSelectedOrderData)
            //    {
            //        if (!objColumnIdx.ContainsKey(objData.ProcessCode))
            //            continue;

            //        int iColIdx = objColumnIdx[objData.ProcessCode];
            //        if (objData.EndTime == null || objData.EndTime == "" || objData.EndTime == "-")
            //            objDataRow[iColIdx] = "진행중";
            //        else
            //            objDataRow[iColIdx] = objData.EndTime;
            //    }

            //    objDataTable.Rows.Add(objDataRow);
            //}

            //// 엑셀 객체로 정리 후 저장
            //try
            //{
            //    int iDataWidth = objDataTable.Columns.Count;
            //    int iDataHeight = objDataTable.Rows.Count + 1;

            //    LExcelHandler objExcel = LIMMController.GetInstance().OpenedExcel;

            //    // 데이터 입력
            //    objExcel.SetData(objDataTable, true);

            //    // 헤더 셀 정리
            //    //objExcel.SelectCell(LExcelHandler.CellAddress(1, 1), LExcelHandler.CellAddress(1, iDataWidth));
            //    objExcel.SelectCell(1, 1, 1, iDataWidth);
            //    objExcel.SetBold();
            //    objExcel.SetColor(Color.LightGray);

            //    // 내용 색상 처리
            //    for (int iRow = 2; iRow <= iDataHeight; iRow++)
            //    {
            //        for (int iCol = 7; iCol <= iDataWidth; iCol++)
            //        {
            //            if (objExcel.SelectCell(LExcelHandler.CellAddress(iRow, iCol)).Value2 == null)
            //                continue;

            //            string strValue = objExcel.SelectCell(LExcelHandler.CellAddress(iRow, iCol)).Value2.ToString();
            //            switch (strValue)
            //            {
            //                case "없음":
            //                    break;
            //                case "진행중":
            //                    objExcel.SetColor(objLightYellow);
            //                    break;
            //                default:
            //                    objExcel.SetColor(objLightGreen);
            //                    break;
            //            }
            //        }
            //    }

            //    // 사용한 셀 선택
            //    //objExcel.SelectCell(LExcelHandler.CellAddress(1, 1), LExcelHandler.CellAddress(iDataHeight, iDataWidth));
            //    objExcel.SelectCell(1, 1, iDataHeight, iDataWidth);
            //    // 컬럼 자동맞춤
            //    objExcel.SetColumnWidth();
            //    // 내용 가운데 정렬
            //    objExcel.SetCenterAlign();
            //    // 전체 테두리
            //    objExcel.SetBorder();
            //    // 공정코드 컬럼 너비 조정
            //    //objExcel.SelectCell(LExcelHandler.CellAddress(1, 7), LExcelHandler.CellAddress(iDataHeight, iDataWidth));
            //    objExcel.SelectCell(1, 7, iDataHeight, iDataWidth);
            //    objExcel.SetColumnWidth(17);

            //    objExcel.SaveCurrentWorkbook(strFilePath);
            //}
            //catch (Exception ex)
            //{
            //    MessageBox.Show("다음과 같은 이유로 결과 요약 리포트 저장에 실패하였습니다." + Environment.NewLine + ex.Message, "저장 실패", MessageBoxButtons.OK, MessageBoxIcon.Error);
            //}
        }

        private void mnuLargeData_Click(object sender, EventArgs e)
        {
            _bLargeData = !_bLargeData;

            if (_bLargeData)
                mnuLargeData.Text = "대용량 처리(활성중)";
            else
                mnuLargeData.Text = "대용량 처리(비활성중)";
        }

        private void grdData_ColumnAdded(object sender, DataGridViewColumnEventArgs e)
        {
            if (_bLargeData)
                e.Column.FillWeight = 1;
        }
    }
}