using System;
using System.Collections.Generic;
using System.Windows.Forms;
using TBF.BenchControl;
using TBF.BenchControl.Generic;

namespace ResultsBrowser.Forms
{
	public partial class PrinterConfigDlg : Form
	{
		public string PrinterClass;				/// To be initialized in the constructor
		public string PrinterCfg;

		IList<IComponentFactory> printerFactories;			/// Printer components classes
		IComponentFactory printerFactory;


		public PrinterConfigDlg()
		{
			InitializeComponent();

			printerFactories = new List<IComponentFactory>();
			foreach (var fctry in TbfComponents.Factories)
			{
				if (fctry.ClassName.Contains("Output.Printers.")) printerFactories.Add(fctry);
			}
		}


		private void PrinterClassDlg_Load(object sender, EventArgs e)
		{
			printerClassComboBox.Items.Add("---");
			foreach (var fctry in printerFactories)
			{
				printerClassComboBox.Items.Add(fctry.ClassName);
			}
			printerClassComboBox.Text = string.IsNullOrEmpty(PrinterClass) ? "---" : PrinterClass;
		}


		private void changePrinterClassButton_Click(object sender, EventArgs e)
		{
			printerClassComboBox.Enabled = true;
		}


		private void cancelButton_Click(object sender, EventArgs e)
		{
			DialogResult = DialogResult.Cancel;
			Close();
		}


		private void configureButton_Click(object sender, EventArgs e)
		{
			string oriClassName = PrinterClass;

			PrinterClass = string.Empty;
			if (printerClassComboBox.Text != "---")
			{
				foreach (var pc in printerFactories)
				{
					if (printerClassComboBox.Text == pc.ClassName) PrinterClass = pc.ClassName;
				}
			}

			printerFactory = GetFactory(PrinterClass);
			if (printerFactory == null)
			{
				MessageBox.Show("Invalid printer");
				return;
			}

			IComponentCfg printerCfg;
			if ((oriClassName != printerFactory.ClassName) || string.IsNullOrEmpty(PrinterCfg))
			{
				printerCfg = printerFactory.DefaultConfig();
			}
			else
			{
				Config.Entities.Component cmpnt = new Config.Entities.Component();
				cmpnt.Name = "printer";
				cmpnt.ClassName = PrinterClass;
				cmpnt.Parameters = PrinterCfg;
				printerCfg = printerFactory.CmpntCfgFromCmpntEntity(cmpnt);
			}

			IComponentCfgCtrl cfgControl = printerCfg.GetControl();
			cfgControl.Config = printerCfg;
			cfgControl.Config.ItemNr = 0;

			TBF.ComponentParametersDlg cfgForm = new TBF.ComponentParametersDlg();
			cfgForm.TbfComponents = new List<Config.Entities.Component>();

			cfgForm.ComponentCfgCtrl = cfgControl;
			cfgForm.UnlockAfterStart = true;
			DialogResult dr = cfgForm.ShowDialog();
			if (dr != DialogResult.OK) return;

			PrinterCfg = (printerCfg != null) ? printerCfg.CreateDbEntity().Parameters : string.Empty;

			DialogResult = DialogResult.OK;
			Close();
		}


		/// <summary>
		/// Updates component factory
		/// </summary>
		/// <param name="className">Component class name</param>
		/// <param name="factory">Reference to a factory</param>
		/// <returns>true when factory changed</returns>
		IComponentFactory GetFactory(string className)
		{
			if (!string.IsNullOrEmpty(className))
			{
				foreach (var fac in TbfComponents.Factories)
				{
					if (fac.ClassName == className) return fac;
				}
			}

			return null;
		}
	}
}