using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using GZTW.AyaNova.BLL;
using System.Threading;
using CSLA.Security;
using FileHelpers;
using System.Collections.Generic;
using System.IO;

namespace AyaNova.PlugIn.ImportExportCSV
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class ImportPart : System.Windows.Forms.Form
	{
		private System.Windows.Forms.DataGridView dataGrid1;
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem mnuOpen;
		private System.Windows.Forms.MenuItem mnuImport;
		private System.Windows.Forms.OpenFileDialog dlgOpen;
        private System.Windows.Forms.MenuItem mnuExport;
        private MenuItem mnuImportOptions;
        private IContainer components;

        public ImportPart()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();

            this.Icon = Resource.ImportExportCSV16icon;
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
            this.components = new System.ComponentModel.Container();
            this.dataGrid1 = new System.Windows.Forms.DataGridView();
            this.mainMenu1 = new System.Windows.Forms.MainMenu(this.components);
            this.mnuOpen = new System.Windows.Forms.MenuItem();
            this.mnuImport = new System.Windows.Forms.MenuItem();
            this.mnuExport = new System.Windows.Forms.MenuItem();
            this.mnuImportOptions = new System.Windows.Forms.MenuItem();
            this.dlgOpen = new System.Windows.Forms.OpenFileDialog();
            ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
            this.SuspendLayout();
            // 
            // dataGrid1
            // 
            this.dataGrid1.Dock = System.Windows.Forms.DockStyle.Fill;
            this.dataGrid1.Location = new System.Drawing.Point(0, 0);
            this.dataGrid1.Name = "dataGrid1";
            this.dataGrid1.ReadOnly = true;
            this.dataGrid1.Size = new System.Drawing.Size(632, 433);
            this.dataGrid1.TabIndex = 1;
            this.dataGrid1.BindingContextChanged += new System.EventHandler(this.dataGrid1_BindingContextChanged);
            // 
            // mainMenu1
            // 
            this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
            this.mnuOpen,
            this.mnuImport,
            this.mnuExport,
            this.mnuImportOptions});
            // 
            // mnuOpen
            // 
            this.mnuOpen.Index = 0;
            this.mnuOpen.Text = "&Open CSV file";
            this.mnuOpen.Click += new System.EventHandler(this.mnuOpen_Click);
            // 
            // mnuImport
            // 
            this.mnuImport.Enabled = false;
            this.mnuImport.Index = 1;
            this.mnuImport.Text = "&Import data";
            this.mnuImport.Click += new System.EventHandler(this.mnuImport_Click);
            // 
            // mnuExport
            // 
            this.mnuExport.Index = 2;
            this.mnuExport.Text = "&Export data";
            this.mnuExport.Click += new System.EventHandler(this.mnuExport_Click);
            // 
            // mnuImportOptions
            // 
            this.mnuImportOptions.Index = 3;
            this.mnuImportOptions.Text = "&Duplicate import options";
            this.mnuImportOptions.Visible = false;
            this.mnuImportOptions.Click += new System.EventHandler(this.mnuImportOptions_Click);
            // 
            // dlgOpen
            // 
            this.dlgOpen.DefaultExt = "csv";
            this.dlgOpen.Filter = "CSV files|*.csv";
            this.dlgOpen.Title = "Comma separated values part file";
            // 
            // ImportPart
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
            this.ClientSize = new System.Drawing.Size(632, 433);
            this.Controls.Add(this.dataGrid1);
            this.Menu = this.mainMenu1;
            this.Name = "ImportPart";
            this.Text = "Part importer v2.0.0.0";
            this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
            this.Load += new System.EventHandler(this.Form1_Load);
            ((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
            this.ResumeLayout(false);

		}
		#endregion

		
//-----------------------------------------------------------------------------

//
//		_________                   __                    
//		\_   ___ \  __ __   _______/  |_   ____    _____  
//		/    \  \/ |  |  \ /  ___/\   __\ /  _ \  /     \ 
//		\     \____|  |  / \___ \  |  |  (  <_> )|  Y Y  \
//		 \______  /|____/ /____  > |__|   \____/ |__|_|  /
//		        \/             \/                      \/ 
//		_________              .___        
//		\_   ___ \   ____    __| _/  ____  
//		/    \  \/  /  _ \  / __ | _/ __ \ 
//		\     \____(  <_> )/ /_/ | \  ___/ 
//		 \______  / \____/ \____ |  \___  >
//		        \/              \/      \/ 


		#region list objects
		//These are name value lists used to 
		//keep track of the id's of existing items
		//that are either pre-existing or have been created during import
		//this supports the code that matches text names of objects to their id's
		//i.e. "IBM" as a manufacturer to the IBM record in AyaNova already
		//case is not taken into account during comparison to ensure no little 
		//mismatches due to a small typo in the import file
		Hashtable htManufacturers=new Hashtable();
		Hashtable htWholesalers=new Hashtable();
		UnitOfMeasures Measures;//=UnitOfMeasures.GetItems();
		PartCategories Categories;//=PartCategories.GetItems();
		Hashtable htPartNumbers=new Hashtable();

		#endregion

		#region Form load and login 
		private void Form1_Load(object sender, System.EventArgs e)
		{
            {
                System.Reflection.Assembly a = System.Reflection.Assembly.GetExecutingAssembly();
                string sVersion = "AyaNovaź part import / export " + AyaBizUtils.DisplayVersion(a.GetName().Version);
                System.Diagnostics.FileVersionInfo fileVersion = System.Diagnostics.FileVersionInfo.GetVersionInfo(a.Location);
                if (fileVersion.FileBuildPart > 0)
                    sVersion += " (Patch " + fileVersion.FileBuildPart.ToString() + ")";
                this.Text = sVersion;
            }     
            
            
            mnuImportOptions.Visible = Util.LicensedMode;
						
			
			//Load cached lists
            //case 3606
           // System.Text.StringBuilder sbDupes = new System.Text.StringBuilder();

			VendorPickList vp=VendorPickList.GetList();

			foreach(VendorPickList.VendorPickListInfo i in vp)
			{
				switch(i.VendorType)
				{
					case VendorTypes.Manufacturer:
                        //case 3606
                        Util.AddItemWithDupeCheck("Vendor.Manufacturer.Name", htManufacturers, i.ID, i.Name);                       
						break;

					case VendorTypes.Wholesaler:
                        //case 3606
                        Util.AddItemWithDupeCheck("Vendor.Wholesaler.Name", htWholesalers, i.ID, i.Name);       						
						break;
					default:
						break;
				}
			}


			PartPickList p=PartPickList.GetAllParts();
			foreach(PartPickList.PartPickListInfo i in p)
			{
                //case 3606
                Util.AddItemWithDupeCheck("Part.Number", htPartNumbers, i.ID, i.PartNumber);    
//				htPartNumbers.Add(i.PartNumber,i.ID);
			}

			Measures=UnitOfMeasures.GetItems();           
			Categories=PartCategories.GetItems();

           

			MessageBox.Show(
				"Confirm that you have a backup copy of your AyaNova database before proceeding.\r\n\r\n" +
				"There is no undo function for importing data other than restoring from a pre-import backup copy.\r\n\r\n" +
				"** If you are not 100% certain that you have a *working* backup copy ready, stop now **",
				"ACCIDENTS HAPPEN: DO NOT IMPORT WITHOUT A GOOD BACKUP!");
		}
	
		#endregion

		#region Read import file
		private DataTable dtParts;		
		private void mnuOpen_Click(object sender, System.EventArgs e)
        {
            if (dlgOpen.ShowDialog() != DialogResult.OK) return;
            this.mnuImport.Enabled = false;
            Util.ReadCSV(dataGrid1, ref dtParts, RootObjectTypes.Part, dlgOpen.FileName);
            this.mnuImport.Enabled = true; 
		}

		#endregion

		#region Import data
        Dictionary<string, int> lsMap = null;
		private void mnuImport_Click(object sender, System.EventArgs e)
		{
            //Save grid settings
            Util.SaveGridMappings(dataGrid1, RootObjectTypes.Part);

            if (dtParts.Rows.Count < 1)
            {
                MessageBox.Show("There are no records to import");
                return;
            }


            //Get the map 
            lsMap = Util.BuildGridImportMap(dataGrid1);

            if (!lsMap.ContainsKey("Number"))
            {
                MessageBox.Show("\"Number\" is a required field to uniquely identify parts.  Select a column to be used as the unique part number to proceed with import.");
                return;
            }

           
            long lBadCount = 0;
            long lGoodCount = 0;
            long lUpdatedCount = 0;
            Waiting w = new Waiting();
            w.Show();
            w.Ops = "Importing parts";
            foreach (DataRow dr in dtParts.Rows)
            {
                string sPartNumber = fld(dr, "Number", 255);

                if (string.IsNullOrWhiteSpace(sPartNumber)) continue;
                Part p = null;
                

                if (htPartNumbers.Contains(sPartNumber))
                {
                    //case 1404 Open existing for update?
                    if (Util.LicensedMode && Util.IEData.PartUpdate)
                    {
                        //update existing part
                        p = Part.GetItem((Guid)htPartNumbers[sPartNumber]);

                    }
                    else//not licensed or nothing chosen to update
                    {
                        lBadCount++;
                        continue;
                    }
                }
                else
                {
                    p = Part.NewItem();
                }

                w.Step = sPartNumber;
                if (p.IsNew)
                    p.PartNumber = sPartNumber;

                if (p.IsNew || Util.IEData.PartName)
                    p.Name = fld(dr, "Name", 255);

                //alternative wholesaler?
                if (p.IsNew || Util.IEData.PartAlternativeWholesaler)
                {
                    p.AlternativeWholesalerID = GetWholeSalerIDByName(fld(dr, "AlternativeWholeSaler", 255));
                    p.AlternativeWholesalerNumber = fld(dr, "AlternativeWholeSalerNumber", 255);
                }

                if (p.IsNew || Util.IEData.PartCategoryID)
                    p.PartCategoryID = GetPartCategoryByName(fld(dr, "Category", 255));

                if (p.IsNew || Util.IEData.PartCost)
                    p.Cost = StringToDecimal(fld(dr, "Cost", 255));

                if (p.IsNew || Util.IEData.PartManufacturer)
                {
                    p.ManufacturerID = GetManufacturerIDByName(fld(dr, "Manufacturer", 255));
                    p.ManufacturerNumber = fld(dr, "ManufacturerNumber", 255);
                }

                if (p.IsNew || Util.IEData.PartNotes)
                    p.Notes = fld(dr, "Notes", 32767);// t(32767, f.Notes);

                if (p.IsNew || Util.IEData.PartRetail)
                    p.Retail = StringToDecimal(fld(dr, "Retail", 255));

                if (p.IsNew || Util.IEData.PartTrackSerialNumber)
                    p.TrackSerialNumber = StringToBool(fld(dr, "TrackSerialNumber", 255));

                if (p.IsNew || Util.IEData.PartUnitOfMeasureID)
                    p.UnitOfMeasureID = GetPartUnitOfMeasureByName(fld(dr, "UnitOfMeasure", 255));

                if (p.IsNew || Util.IEData.PartUPC)
                    p.UPC = (fld(dr, "UPC", 15));

                if (p.IsNew || Util.IEData.PartWholesaler)
                {
                    p.WholesalerID = GetWholeSalerIDByName(fld(dr, "WholeSaler", 255));
                    p.WholesalerNumber = (fld(dr, "WholeSalerNumber", 255));
                }


                if (p.IsSavable)
                {
                    bool bWasNew = p.IsNew;
                    p.Save();
                    if(bWasNew)
                        htPartNumbers.Add(sPartNumber, p.ID);

                    if (bWasNew)
                        lGoodCount++;
                    else
                        lUpdatedCount++;
                }
                else
                {
                    lBadCount++;
                }

            }

            w.Close();
            if (Util.LicensedMode && Util.IEData.PartUpdate)//case 1891
            {
                if (lBadCount > 0)
                    MessageBox.Show(lGoodCount.ToString() + " Parts were imported / " + lUpdatedCount + " duplicate parts were updated sucessfully.\r\n" +
                        lBadCount.ToString() + " Parts were not imported because they had no number at all or did not pass the business / update rules for a part object.");
                else
                    MessageBox.Show(lGoodCount.ToString() + " Parts were imported / " + lUpdatedCount + " duplicate parts were updated sucessfully.");
            }
            else
            {

                if (lBadCount > 0)
                    MessageBox.Show(lGoodCount.ToString() + " Parts were imported sucessfully.\r\n" +
                        lBadCount.ToString() + " Parts were not imported because a part with the same number already\r\n" +
                        "exists or they had no number at all or did not pass the rules for a part object.");
                else
                    MessageBox.Show(lGoodCount.ToString() + " Parts were imported sucessfully");
            }
        }

        /// <summary>
        /// Get a field from the current data row
        /// </summary>
        /// <param name="sColumnNameKey"></param>
        /// <param name="nLength"></param>
        /// <returns></returns>
        private string fld(DataRow dr, string sColumnNameKey, int nLength)
        {
            if (lsMap.ContainsKey(sColumnNameKey))
            {
                return t(nLength, dr[lsMap[sColumnNameKey]].ToString());
            }
            else
                return "";
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="nLength"></param>
        /// <param name="s"></param>
        /// <returns></returns>
        private static string t(int nLength, string s)
        {
            if (string.IsNullOrWhiteSpace(s)) return "";
            if (s.Length <= nLength) return s;
            else
                return s.Substring(0, nLength);
        }

		/// <summary>
		/// 
		/// </summary>
		/// <param name="s"></param>
		/// <returns></returns>
		private bool StringToBool(string s)
		{
			if(s==null || s=="") return false;
			if(s.ToUpper().StartsWith("T")) return true;
			if(s=="1") return true;
			return false;
		
		}

		private decimal StringToDecimal(string s)
		{
			if(s==null || s=="") return 0M;
			try
			{
				return System.Convert.ToDecimal(s);
			}
			catch
			{
				return 0M;
			}
		}

		/// <summary>
		/// Match and fetch an existing part category or create a new one
		/// </summary>
		/// <param name="sName"></param>
		/// <returns></returns>
		private Guid GetPartCategoryByName(string sName)
		{
			if(sName=="") return Guid.Empty;

			foreach(PartCategory pc in Categories)
			{
				if(pc.Name.ToUpper()==sName.ToUpper())
					return pc.ID;
			}

			//Not found so add it
			PartCategory newpc=Categories.Add();
			newpc.Name=sName;
           // try
           // {
            //case 1412
                Categories = (PartCategories)Categories.Save();
            //}
            //catch (Exception ex)
            //{
            //    ex.ToString();
            //}
			return newpc.ID;
		}

		/// <summary>
		/// Match and fetch an existing part UnitOfMeasure or create a new one
		/// </summary>
		/// <param name="sName"></param>
		/// <returns></returns>
		private Guid GetPartUnitOfMeasureByName(string sName)
		{
			if(sName=="") return Guid.Empty;

			foreach(UnitOfMeasure uom in Measures)
			{
				if(uom.Name.ToUpper()==sName.ToUpper())
					return uom.ID;
			}

			//Not found so add it
			UnitOfMeasure newuom=Measures.Add();
			newuom.Name=sName;
            //case 1412
			Measures = (UnitOfMeasures)Measures.Save();
			return newuom.ID;
		}


		/// <summary>
		/// Identify and fetch an existing ID or add a new wholesaler if necessary
		/// </summary>
		/// <param name="sName"></param>
		/// <returns></returns>
		private Guid GetWholeSalerIDByName(string sName)
		{
			if(sName=="") sName="Unspecified wholesaler";
			foreach(DictionaryEntry de in htWholesalers)
			{
				if(de.Key.ToString().ToUpper()==sName.ToUpper())
					return (Guid)de.Value;
			}

			//Not there so add a new record for it
			Vendor v=Vendor.NewItem();
			v.Active=true;
			v.VendorType=VendorTypes.Wholesaler;
			v.Name=sName;
			v.Save();
			htWholesalers.Add(sName,v.ID);
			return v.ID;
		}

		/// <summary>
		/// Identify and fetch an existing ID or add a new Manufacturer if necessary
		/// </summary>
		/// <param name="sName"></param>
		/// <returns></returns>
		private Guid GetManufacturerIDByName(string sName)
		{
			if(sName=="") sName="Unspecified manufacturer";
			foreach(DictionaryEntry de in htManufacturers)
			{
				if(de.Key.ToString().ToUpper()==sName.ToUpper())
					return (Guid)de.Value;
			}

			//Not there so add a new record for it
			Vendor v=Vendor.NewItem();
			v.Active=true;
			v.VendorType=VendorTypes.Manufacturer;
			v.Name=sName;
			v.Save();
			htManufacturers.Add(sName,v.ID);
			return v.ID;
		}

		#endregion

		#region Export data
		/// <summary>
		/// Exports all existing clients to CSV format identical
		/// to that required for import
		/// </summary>
		/// <param name="sender"></param>
		/// <param name="e"></param>
		private void mnuExport_Click(object sender, System.EventArgs e)
		{
            SaveFileDialog sf = new SaveFileDialog();
            sf.DefaultExt = ".csv";
            sf.FileName = "parts.csv";
            if (sf.ShowDialog() != DialogResult.OK) return;

			Cursor=Cursors.WaitCursor;
			FileHelperEngine engine = new FileHelperEngine(typeof(FHPart));
			System.Collections.ArrayList alParts=new ArrayList();
			FHPart fhc;
			Part p;
			PartPickList ppl=PartPickList.GetAllParts();
			Waiting w=new Waiting();
			w.Show();
			w.Ops="Exporting parts";
			foreach(PartPickList.PartPickListInfo i in ppl)
			{
				p=Part.GetItem(i.ID);
				fhc=new FHPart();
				w.Step=p.Name + " " + p.PartNumber;
				fhc.Number=p.PartNumber;
				fhc.Name=p.Name;				
				fhc.AlternativeWholeSaler=GetWholesalerByID(p.AlternativeWholesalerID);
				fhc.AlternativeWholeSalerNumber=p.AlternativeWholesalerNumber;
				fhc.Category="";
				for(int x=0;x<Categories.Count;x++)
				{
					if(Categories[x].ID==p.PartCategoryID)
					{
						fhc.Category=Categories[x].Name;
						break;
					}
				}

				fhc.Cost=p.Cost.ToString();
				fhc.Manufacturer=GetManufacturerByID(p.ManufacturerID);
				fhc.ManufacturerNumber=p.ManufacturerNumber;
				fhc.Notes=p.Notes;
				fhc.Retail=p.Retail.ToString();
				fhc.TrackSerialNumber=(p.TrackSerialNumber?"TRUE":"FALSE");
				fhc.UnitOfMeasure="";
				for(int x=0;x<Measures.Count;x++)
				{
					if(Measures[x].ID==p.UnitOfMeasureID)
					{
						fhc.UnitOfMeasure=Measures[x].Name;
						break;
					}
				}
				fhc.UPC=p.UPC;
				fhc.WholeSaler=GetWholesalerByID(p.WholesalerID);
				fhc.WholeSalerNumber=p.WholesalerNumber;
			



				alParts.Add(fhc);			
	

			}
			w.Close();

			try
			{

				engine.WriteFile(sf.FileName, (object[]) alParts.ToArray(typeof(FHPart)));
			}
			catch(Exception ex)
			{
				MessageBox.Show("Error writing the export file:\r\n\r\n" + ex.Message);
				return;
			}
		
			
			Cursor=Cursors.Default;
			MessageBox.Show("All parts in current AyaNova database have been exported to file:\r\n" +
				sf.FileName);
		}


		private string GetWholesalerByID(Guid ID)
		{
			foreach(DictionaryEntry de in htWholesalers)
			{
				if((Guid)de.Value==ID)
					return de.Key.ToString();
			}
			return "";
		}

		private string GetManufacturerByID(Guid ID)
		{
			foreach(DictionaryEntry de in htManufacturers)
			{
				if((Guid)de.Value==ID)
					return de.Key.ToString();
			}
			return "";
		}
		
		#endregion

        private void mnuImportOptions_Click(object sender, EventArgs e)
        {
            Util.ShowOptionsDialog();
        }


        #region case 1588
        private void dataGrid1_BindingContextChanged(object sender, EventArgs e)
        {
            // Continue only if the data source has been set.
            if (dataGrid1.DataSource == null)
            {
                return;
            }

            //these are the columns that can be selected by the user to import into
            List<string> ls = new List<string>();
           ls.Add("Name");
           ls.Add("Number");
           ls.Add("UnitOfMeasure");
           ls.Add("Cost");
           ls.Add("Retail");
           ls.Add("Category");
           ls.Add("UPC");
           ls.Add("TrackSerialNumber");
           ls.Add("WholeSaler");
           ls.Add("WholeSalerNumber");
           ls.Add("AlternativeWholeSaler");
           ls.Add("AlternativeWholeSalerNumber");
           ls.Add("Manufacturer");
           ls.Add("ManufacturerNumber");
           ls.Add("Notes");
          
            // Add the AutoFilter header cell to each column.
            foreach (DataGridViewColumn col in dataGrid1.Columns)
            {
                col.HeaderCell = new
                    GZDataGridViewComboColumnHeaderCell(col.HeaderCell, ls);
            }

            // Resize the columns to fit their contents.
            dataGrid1.AutoResizeColumns();

        }
        #endregion case 1588


       

       

		
		//------------------------------------------------------------------------
	}
}