//	Spludlow Software
//	Copyright © Samuel P. Ludlow 2020 All Rights Reserved
//	Distributed under the terms of the GNU General Public License version 3
//	Distributed WITHOUT ANY WARRANTY; without implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
//	https://www.spludlow.co.uk/LICENCE.TXT
//	The Spludlow logo is a registered trademark of Samuel P. Ludlow and may not be used without permission
//	v1.14

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

using System.IO;
using System.Data;
using System.Text;

public partial class Print : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
		Spludlow.WebControls.DisableOnClick(this);

		if (this.Page.IsPostBack == false)
		{
			foreach (string host in Spludlow.Config.Hosts())
			{
				this.DropDownListHost.Items.Add(host);
				this.DropDownListTargetHost.Items.Add(host);
			}

			foreach (string printOutputType in new string[] { "system", "bitmap", "pdf" })
				this.DropDownListPrintOutputTypes.Items.Add(printOutputType);

			foreach (int dpi in new int[] { 10, 15, 25, 50, 75, 150, 300, 450, 600 })
				this.DropDownListDpi.Items.Add(dpi.ToString());

			this.DropDownListDpi.SelectedIndex = 2;

			this._ShowGroups();

			this._ShowReprint();
		}
    }

	protected void ButtonRefreshHost_Click(object sender, EventArgs e)
	{
		this._ShowGroups();
	}

	protected void DropDownListHost_SelectedIndexChanged(object sender, EventArgs e)
	{
		this._ShowGroups();
	}
	
	private void _ShowGroups()
	{
		string host = this.DropDownListHost.SelectedValue;

		DataTable table = Spludlow.Printing.PrinterHistory.Query(host).Tables[0];
		
		this.DropDownListGroup.DataSource = table;
		this.DropDownListGroup.DataValueField = "Filename";
		this.DropDownListGroup.DataBind();
		this.DropDownListGroup.SelectedIndex = table.Rows.Count - 1;	//	auto select last

		this.TextBoxPage.Text = "1";

		this.ImagePreview2.Src = "";

		this._ShowJobs();
	}

	protected void DropDownListGroup_SelectedIndexChanged(object sender, EventArgs e)
	{
		this._ShowJobs();
	}

	protected void ButtonRefreshGroup_Click(object sender, EventArgs e)
	{
		this._ShowJobs();
	}

	private void _ShowJobs()
	{
		if (this.DropDownListGroup.SelectedIndex == -1)
		{
			this.DropDownListGroup.DataSource = null;
			this.DropDownListGroup.DataBind();


			this.GridViewJobs.DataSource = null;
			this.GridViewJobs.DataBind();
			return;
		}

		string filename = this.DropDownListGroup.SelectedValue;

		string host = this.DropDownListHost.SelectedValue;

		DataSet dataSet = Spludlow.Printing.PrinterHistory.QueryDay(host, filename, 0, 25);

		DataTable table = dataSet.Tables["Result"];
		DataRow infoRow = dataSet.Tables["Info"].Rows[0];

		table.Columns.Add("PageSizeName", typeof(string));
		foreach (DataRow row in table.Rows)
			row["PageSizeName"] = Spludlow.Printing.PageSizes.PaperName((float)row["Width"], (float)row["Height"]);

		if (table.Rows.Count > 0)
			this.GridViewJobs.SelectedIndex = 0;	// table.Rows.Count - 1;	//	auto select last

		this.GridViewJobs.DataSource = table;
		this.GridViewJobs.DataBind();

		this.TextBoxPage.Text = "1";

		this._ShowJob();
	}

	protected void GridViewJobs_SelectedIndexChanged(object sender, EventArgs e)
	{
		this.TextBoxPage.Text = "1";

		this._ShowJob();
	}

	protected void ButtonPrevPage_Click(object sender, EventArgs e)
	{
		this._SetPageIndex(this._GetPageIndex() - 1);
		this._ShowJob();
	}
	protected void ButtonNextPage_Click(object sender, EventArgs e)
	{
		this._SetPageIndex(this._GetPageIndex() + 1);
		this._ShowJob();
	}
	protected void DropDownListDpi_SelectedIndexChanged(object sender, EventArgs e)
	{
		this._ShowJob();
	}

	private void _ShowJob()
	{

		if (this.GridViewJobs.SelectedIndex == -1)
		{
			this.ImagePreview2.Src = "";
			return;
		}

		int index = this.GridViewJobs.SelectedIndex;

		string filename = Spludlow.WebControls.KeyString(this.GridViewJobs, index, "Filename");

		int pageCount = Spludlow.WebControls.KeyInt32(this.GridViewJobs, index, "PageCount");

		string host = this.DropDownListHost.SelectedValue;

		int dpi = Int32.Parse(this.DropDownListDpi.SelectedValue);

		int pageIndex = this._GetPageIndex();

		string name = Path.GetFileNameWithoutExtension(filename) + ".page" + (pageIndex + 1) + ".png";

		string previewHostAddress = this._PreviewAddress();

		StringBuilder url = new StringBuilder();
		url.Append("Generic.aspx?");
		url.Append("A=Spludlow&T=Spludlow.Printing.Printer&M=PreviewPage&MIME=png");
		url.Append("&INLINE");
		url.Append("&FILENAME=");
		url.Append(name);
		url.Append("&P0=");
		url.Append(HttpUtility.UrlEncode("@" + Path.GetFileName(filename)));
		url.Append("&P1=");
		url.Append(pageIndex);
		url.Append("&P2=");
		url.Append(dpi);

		this.ImagePreview2.Src = url.ToString();

		this.TextBoxPage.Text = (pageIndex + 1).ToString();
		this.LiteralPage.Text = "/" + pageCount;
	}

	private string _PreviewAddress()
	{
		int index;

		string requestHost = this.Request.Url.AbsoluteUri;
		index = requestHost.IndexOf("/", 8);
		requestHost = requestHost.Substring(0, index);

		string previewHostAddress = Spludlow.Config.HostAddress(Environment.MachineName, true);
		index = previewHostAddress.IndexOf("/", 8);
		previewHostAddress = previewHostAddress.Substring(index);

		return requestHost + previewHostAddress;
	}

	protected void DropDownListTargetHost_SelectedIndexChanged(object sender, EventArgs e)
	{
		this._ShowReprint();
	}

	protected void DropDownListPrintOutputTypes_SelectedIndexChanged(object sender, EventArgs e)
	{
		this._ShowReprint();
	}

	private void _ShowReprint()
	{
		string printHost = this.DropDownListTargetHost.SelectedValue;

		string outputType = this.DropDownListPrintOutputTypes.SelectedValue;

		this.DropDownListPrintSource.Visible = false;
		this.TextBoxPrintInfo.Visible = false;
		this.DropDownListPrintSource.Items.Clear();

		switch (outputType)
		{
			case "system":
				this.DropDownListPrintSource.Visible = true;
				foreach (string paperSource in Spludlow.Printing.PrinterSetting.PaperSourceLines(printHost))
					this.DropDownListPrintSource.Items.Add(paperSource);
				break;
			case "bitmap":
				this.TextBoxPrintInfo.Visible = true;
				this.TextBoxPrintInfo.Text = Spludlow.Config.ProgramData + @"\RePrint.png";
				break;
			case "pdf":
				this.TextBoxPrintInfo.Visible = true;
				this.TextBoxPrintInfo.Text = Spludlow.Config.ProgramData + @"\RePrint.pdf";
				break;
		}

	}

	protected void ButtonRePrint_Click(object sender, EventArgs e)		//	Put repint logic in Printing class
	{
		if (this.GridViewJobs.SelectedIndex == -1)
		{
			this.LabelError.Text = "Please select an item to reprint.";
			return;
		}

		int index = this.GridViewJobs.SelectedIndex;

		string host = this.DropDownListHost.SelectedValue;
		string filename = Spludlow.WebControls.KeyString(this.GridViewJobs, index, "Filename");
		int pageCount = Spludlow.WebControls.KeyInt32(this.GridViewJobs, index, "PageCount");

		string printHost = this.DropDownListTargetHost.SelectedValue;

		string outputType = this.DropDownListPrintOutputTypes.SelectedValue;
		
		string printData = Spludlow.Call.DownloadText(host, filename);

		if (this.CheckBoxSinglePage.Checked == true)
			printData = Spludlow.Printing.Printer.PickPages(printData, new int[] { this._GetPageIndex() });

		string printInfo;

		if (outputType == "system")
		{
			string source = this.DropDownListPrintSource.SelectedValue;

			string[] words = Spludlow.Text.Split(source, '\t');
			if (words.Length < 2)
				throw new ApplicationException("Did not find printer and paper source in text:\t" + source);

			printInfo = words[0] + ", " + words[1];
		}
		else
		{
			printInfo = this.TextBoxPrintInfo.Text;
		}

		Spludlow.Printing.Printer.PrintAt(printHost + ":Run", printData, outputType, printInfo);

		this.LabelError.Text = "Re-Print Sent: " + DateTime.Now;
	}


	private int _GetPageIndex()
	{
		return Int32.Parse(this.TextBoxPage.Text) - 1;
	}

	private void _SetPageIndex(int index)
	{
		this.TextBoxPage.Text = (index + 1).ToString();
	}

}