using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using TBF.Resources;

namespace TBF.TestWizard
{
	public partial class MethodSelection : Form
	{
		Entities.Test test;
		IList<BenchControl.GenericDevices.ITestMethod> methods;
		IList<Entities.MetersPath> sensorPaths;

		public MethodSelection()
		{
			InitializeComponent();
		}

		public MethodSelection(Entities.Test test,
							   IList<BenchControl.GenericDevices.ITestMethod> methods,
							   IList<Entities.MetersPath> sensorPaths)
			: this()
		{
			this.test = test;
			this.methods = methods;
			this.sensorPaths = sensorPaths;
		}

		private void MethodSelection_Load(object sender, EventArgs e)
		{
			if (test == null) return;

			Text = Strings.Method_selection;
			testMethodLabel.Text = Strings.Test_method;
			sensorsLabel.Text = Strings.Sensors;
			backButton.Text = Strings.BackBtnText;
			nextButton.Text = Strings.NextBtnText;
			cancelButton.Text = Strings.CancelBtnText;

			foreach (var method in methods) testMethodComboBox.Items.Add(method.Cfg.Name);
			foreach (var path in sensorPaths) sensorsComboBox.Items.Add(path.Name);
	
			RefreshWizardPage();
		}

		void RefreshWizardPage()
		{
			nextButton.Enabled = IsFormValid();
		}

		void UpdateTest()
		{
			if (testMethodComboBox.Items.Contains(testMethodComboBox.Text))
			{
				test.Method = testMethodComboBox.Text;
			}
			if (sensorsComboBox.Items.Contains(sensorsComboBox.Text))
			{
				test.MetersPath = sensorsComboBox.Text;
			}
		}

		bool IsFormValid()
		{
			return testMethodComboBox.Items.Contains(testMethodComboBox.Text) &&
				   sensorsComboBox.Items.Contains(sensorsComboBox.Text);
		}

		private void backButton_Click(object sender, EventArgs e)
		{
			if (test != null && IsFormValid()) UpdateTest();
			DialogResult = DialogResult.Retry;
			Close();
		}

		private void nextButton_Click(object sender, EventArgs e)
		{
			if (test != null && IsFormValid())
			{
				UpdateTest();
				DialogResult = DialogResult.OK;
				Close();
			}
			else
			{
				DialogResult = DialogResult.None;
			}
		}

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

		private void testMethodComboBox_TextChanged(object sender, EventArgs e)
		{
			nextButton.Enabled = IsFormValid();
		}

		private void sensorsComboBox_TextChanged(object sender, EventArgs e)
		{
			nextButton.Enabled = IsFormValid();
		}
	}
}