///
/// Copyright (c) 2013-2020 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using Common;
using Config.Entities;
using TBF.Rig.Generic;
using TBF.Resources;
using TBF.UI.Shared;
using Users.Entities;

namespace TBF.UI.Bench.Components
{
	public partial class ComponentParametersDlg : Form
	{
		public IComponentCfgCtrl ComponentCfgCtrl;
        const int ComponentCfgCtrlHeight = 350;
        const int ComponentCfgCtrlMoreHeight = 250;

		public IComponentCfg Config
		{
			get
			{
				if (ComponentCfgCtrl == null) return null;
				return ComponentCfgCtrl.Config;
			}
		}

		public CfgUpdateFlags Flags;
        public bool UnlockAfterStart;

		/// <summary>
		/// List of components (=component configuration instances)
		/// </summary>
		public IList<Config.Entities.Component> CmpntEntities;

        int cmpntEntityId;

        ComponentParametersDlg()
        {
            InitializeComponent();
        }

        /// <summary>
        /// Create a window to edit component configuration
        /// </summary>
        /// <param name="cmpntEntityId">Config.Entities.Component.Id or 0 when this is a new/copied/immported component</param>
		public ComponentParametersDlg(Form parentForm, int cmpntEntityId = 0)
            : this()
		{
            this.cmpntEntityId = cmpntEntityId;

            /// SharedDlgButtons configuration
            sharedButtons.ParentForm = parentForm;
            sharedButtons.RequiredGroupMembership = new GID[] { GID.Metrologists };
            sharedButtons.MoreButtonTop = ComponentCfgCtrlHeight - 45;
            sharedButtons.OptionalButtons = SharedButtons.Buttons.None;
            sharedButtons.Unlocked += Unlock;
            sharedButtons.OKClicked += okButton_Click;
            sharedButtons.CancelClicked += cancelButton_Click;
            sharedButtons.MoreClicked += moreButton_Click;
			
            Flags = CfgUpdateFlags.None;
		}

		private void ComponentCfgForm_Load(object sender, EventArgs e)
		{
			Text = Strings.Properties;

			if (ComponentCfgCtrl != null)
			{
				splitContainer.Panel1.Controls.Add((UserControl)ComponentCfgCtrl);

                if (ComponentCfgCtrl.ShowMore)
                {
                    sharedButtons.OptionalButtons = SharedButtons.Buttons.More;
                }

                if (UnlockAfterStart)
                {
                    sharedButtons.UnlockButtons();
                    ComponentCfgCtrl.Unlock();
                }
            }
        }

        /// <summary>
        /// Handler of the Unlock button click
        /// </summary>
		private void Unlock(object sender, EventArgs e)
		{
			ComponentCfgCtrl.Unlock();
		}

		public CfgUpdateFlags VerifyCfg(ref string message)
		{
			if (ComponentCfgCtrl == null) return CfgUpdateFlags.None;	/// Nothing to verify -> OK
			return ComponentCfgCtrl.VerifyCfg(ref message);
		}

		private void okButton_Click(object sender, EventArgs e)
		{
			string message = string.Empty;
			CfgUpdateFlags flags = VerifyCfg(ref message);
			if ((flags & CfgUpdateFlags.Error) == CfgUpdateFlags.Error)
			{
				MessageBox.Show(Strings.Please_change_the_following_settings + message,
								Strings.Error, MessageBoxButtons.OK, MessageBoxIcon.Error);
				return;
			}

			if (ComponentCfgCtrl != null)
			{
				flags = ComponentCfgCtrl.UpdateCfg();

                /// Prevent component name duplicity
                if (CmpntEntities != null)
                {
                    foreach (var cmpnt in CmpntEntities)
                    {
                        if (ComponentCfgCtrl.Config.Name == cmpnt.Name && cmpntEntityId != cmpnt.Id)
                        {
                            MessageBox.Show("Component with the same name already exists");
                            return;
                        }
                    }
                }

				if ((flags & CfgUpdateFlags.RestartRqrd) == CfgUpdateFlags.RestartRqrd)
				{
					MessageBox.Show(Strings.Program_restart_is_required_to_apply_some_settings,
									Strings.Warning, MessageBoxButtons.OK, MessageBoxIcon.Warning);
				}
				ComponentCfgCtrl.Closing();
			}

			Flags = flags;
			DialogResult = DialogResult.OK;
			Close();
			return;
		}

		private void cancelButton_Click(object sender, EventArgs e)
		{
			if (ComponentCfgCtrl != null) ComponentCfgCtrl.Closing();
			DialogResult = DialogResult.Cancel;
			Close();
			return;
		}

		private void moreButton_Click(object sender, EventArgs e)
		{
			ComponentCfgCtrl.Unlock();

			if (sharedButtons.MoreActive)
			{
                Height = Height + ComponentCfgCtrlMoreHeight;
			}
			else
			{
                Height = Height - ComponentCfgCtrlMoreHeight;
			}
			return;
		}
	}
}