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


namespace CobXmlSupport
{
    public partial class ShowCode : Form
    {

        public readonly string CSV = ".csv";
        public readonly string DIF = ".dif";

        string oldTxt;
        bool bSynch;

        public ShowCode()
        {
            InitializeComponent();
            oldTxt = "";
            bSynch = false;
        }

        public bool BSynch
        {
            get
            {
                return bSynch;
            }
            set
            {
                bSynch = value;
                btnSynch.Visible = bSynch;
            }
        }

        public TextBox CodeShower
        {
            get { return txtCode; }
            set { txtCode = value; }
        }

        public string Labeltext
        {
            get { return lblCodeType.Text; }
            set { lblCodeType.Text = value; }
        }

        private GenCobCode parentWindow;

        public GenCobCode Parent
        {
            get { return parentWindow; }
            set { parentWindow = value; }
        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }

        private void txtCode_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.Control && e.KeyCode == Keys.A)
            {
                txtCode.SelectAll();
            }
        }

        private void txtCode_TextChanged(object sender, EventArgs e)
        {
            if (txtCode.Text.Length > oldTxt.Length)
            {
                string tmpNewText = txtCode.Text.Substring(oldTxt.Length);

                // Debug.Write(tmpNewText);
                // Tag bort denna kommentering för att testa på vad som precis skrivs på log-fönster.
                oldTxt = txtCode.Text;
            }
        }

        private void btnSynch_Click(object sender, EventArgs e)
        {
            Dictionary<string, string> wrkDic = null;
            string codeComplement = "", fieldCompl = "", codeComplInit = "";
            int actRows = 0;
            string inFile = parentWindow.CmbLastFile.Text.Substring(parentWindow.CmbLastFile.Text.LastIndexOf("\\") + 1);
            string inPath = parentWindow.CmbLastFile.Text.Substring(0, parentWindow.CmbLastFile.Text.LastIndexOf("\\") + 1);
            //string codeFile = inFile.Substring(0, inFile.LastIndexOf(".")) + CSV;
            string codeFile = inFile.Substring(0, inFile.LastIndexOf(".")) + DIF;
            this.CodeShower.Text = " InPath = " + inPath + "\r\n InFile = " + inFile + "\r\n codeFile = " + codeFile + "\r\n codePath = " + inPath + codeFile + "\r\n -------------- \r\n" + this.CodeShower.Text;

            if (File.Exists(inPath + codeFile))
            {
                codeComplement = File.ReadAllText(inPath + codeFile);
            }
            if (codeComplement.Length > 0)
            {
//                wrkDic = moveFieldDictionary(codeComplement);
                wrkDic = moveDifFieldDictionary(codeComplement);
            }
            foreach (CobRow cr in parentWindow.RowList)
            {

                if (!cr.isAttribute && !cr.SampleStr.Equals(parentWindow.NOMOVE))
                {


                    if (wrkDic != null && wrkDic.Count > 0)
                    {

                        if (wrkDic.TryGetValue(cr.FieldName, out fieldCompl))
                        {
                            cr.MoveCode = deQuote( fieldCompl);
                        }
                    }
                    codeComplInit += "-1,0\r\n";
                    codeComplInit += "BOT\r\n";
                    codeComplInit += "1,0\r\n";
                    if (cr.MoveCode == null)
                    {
                        codeComplInit += enQuote(cr.FieldName) + "\r\n";
                        codeComplInit += "1,0\r\n";
                        codeComplInit += enQuote(" ") + "\r\n";
                    }
                    else
                    {
                        codeComplInit += enQuote(cr.FieldName) + "\r\n";
                        codeComplInit += "1,0\r\n";
                        codeComplInit += enQuote(cr.MoveCode.Replace("\r\n", "\n")) + "\r\n";
                    }
                    actRows++;
                }
            }

            codeComplInit = "TABLE\r\n" +
                "0,1\r\n" +
                "\"EXCEL\"\r\n" +
                "VECTORS\r\n" +
                "0"+actRows.ToString()+"\r\n" +
                "\"\"\r\n" +
                "TUPLES\r\n" +
                "0,2\r\n" +
                "\"\"\r\n" +
                "DATA\r\n" +
                "0,0\r\n" +
                "\"\"\r\n" +
                codeComplInit+
                "-1,0\r\n"+
                "EOD\r\n";

            string backupfile;
            if (S.ettingUserCodeBcup)
            {
                backupfile = inPath + inFile.Substring(0, inFile.LastIndexOf(".")) + "." +
                    (DateTime.Now.Year - 2000).ToString("00") +
                    DateTime.Now.Month.ToString("00") +
                    DateTime.Now.Day.ToString("00") + "T" +
                    DateTime.Now.Hour.ToString("00") +
                    DateTime.Now.Minute.ToString("00") +
                    DateTime.Now.Second.ToString("00") + DIF;
            }
            else { 
                backupfile = inPath + inFile.Substring(0, inFile.LastIndexOf(".")) + ".backup"+DIF;
                File.Delete(backupfile);
            }

            if (File.Exists(inPath + codeFile))
            {
                File.Move(inPath + codeFile, backupfile);//+ DateTime.Now.ToString());
            }
            File.WriteAllText(inPath + codeFile, codeComplInit);

            refreshWindow();
            this.CodeShower.Text = " InPath = " + inPath + "\r\n InFile = " + inFile + "\r\n codeFile = " + codeFile + "\r\n codePath = " + inPath + codeFile + "\r\n -------------- \r\n" + this.CodeShower.Text;

        }

        private string deQuote(string inString)
        {
            string tmpStr = "";
            char[] x = inString.ToArray<char>();
            for (int i = 0; i < x.Length; i++)
            {
                if (x[i] == '\"')
                {
                    if (i < x.Length - 1)
                    {
                        if (x[i + 1] == '\"')
                        {
                            i++;
                            tmpStr += "\"";
                        }
                    }
                }
                else tmpStr += x[i];
            }
            return tmpStr;
        }

        private string enQuote(string inString)
        {
            string tmpStr = "";
            char[] x = inString.ToArray<char>();
            for (int i = 0; i < x.Length; i++)
            {
                if (x[i] == '\"')
                {
                    {
                        tmpStr += "\"\"";
                    }
                }
                else tmpStr += x[i];
            }
            return "\""+tmpStr+"\"";
        }


        private Dictionary<string, string> moveFieldDictionary(string inFil)
        {
            Dictionary<string, string> tmpDic = new Dictionary<string, string>();
            string[] splits = { "\r\n" };
            string[] itemPairs = inFil.Split(splits, StringSplitOptions.RemoveEmptyEntries);
            char[] newSplits = { '\t' };
            foreach (string itemPair in itemPairs)
            {
                string[] items = itemPair.Split(newSplits);
                tmpDic.Add(items[0], items[1].Replace("\n", "\r\n"));
            }

            return tmpDic;
        }

        private Dictionary<string, string> moveDifFieldDictionary(string inFil)
        {
            bool TABLE = false, VECTORS = false, TUPLES = false, DATA = false;
            int rows = 0, rowCount = 0;
            Dictionary<string, string> tmpDic = new Dictionary<string, string>();
            string[] splits = { "\r\n" };
            char[] csplit = {','};
            string[] items = inFil.Split(splits, StringSplitOptions.RemoveEmptyEntries);
            for (int i = 0; i < items.Count();i++ )
            {
                string item = items[i];
                switch (item.ToUpper())
                {
                    case "TABLE":
                        {
                            TABLE = true;
                            break;
                        }
                    case "VECTORS":
                        {
                            VECTORS = true;
                            string[] nums = items[i + 1].Split(csplit);
                            rows = int.Parse(nums[1]);
                            break;
                        }
                    case "TUPLES":
                        {
                            TUPLES = true;
                            break;
                        }

                    case "DATA":
                        {
                            DATA = true;
                            break;
                        }

                    case "BOT":
                        {
                            if (TABLE && VECTORS && TUPLES && DATA)
                            {
                                if (rowCount < rows)
                                {
                                    tmpDic.Add(deQuote(items[i + 2]), items[i+4].Replace("\n", "\r\n"));
                                    rowCount++;
                                    i = i + 4;
                                }
                            }
                            break;
                        }
                    case "EOD":
                        {
                            i= items.Count();
                            break;
                        }
                }
            }

            return tmpDic;
        }


        private void refreshWindow()
        {
            this.CodeShower.Text = "";
            foreach (CobRow cr in parentWindow.RowList)
            {
                if (cr.CobLevel < 2)
                {
                    string inFile = parentWindow.CmbLastFile.Text.Substring(parentWindow.CmbLastFile.Text.LastIndexOf("\\") + 1);
                    parentWindow.CreateComment(this.CodeShower, "Moves reference (with loop) " + cr.FieldName, S.ettingUserName, S.ettingCompany, inFile);
                }
                // Header square created

                if (!cr.isAttribute && !cr.SampleStr.Equals(parentWindow.NOMOVE))
                {
                    if (this.CodeShower.Text == "") { }
                    else this.CodeShower.Text += "\r\n";
                    if (cr.MoveCode == null)
                    {
                        this.CodeShower.Text += "".PadRight(30) + " " + cr.FieldName.PadRight(30);

                    }
                    else
                    {
                        this.CodeShower.Text += cr.MoveCode.PadRight(30) + " " + cr.FieldName.PadRight(30);
                    }
                }

            }

        }

    }
}