// Copyright (C) Stichting Deltares 2017. All rights reserved.
//
// This file is part of Ringtoets.
//
// Ringtoets is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// All names, logos, and references to "Deltares" are registered trademarks of
// Stichting Deltares and remain full property of Stichting Deltares at all times.
// All rights reserved.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using Core.Common.Controls.Views;
using Core.Common.Utils.Extensions;
using Ringtoets.Common.Forms.Properties;

namespace Ringtoets.Common.Forms.Views
{
    /// <summary>
    /// Control to show illustration points in a table view.
    /// </summary>
    public partial class IllustrationPointsTableControl : UserControl, ISelectionProvider
    {
        private const int closingSituationColumnIndex = 1;
        private IEnumerable<IllustrationPointControlItem> data;

        public event EventHandler<EventArgs> SelectionChanged;

        /// <summary>
        /// Creates a new instance of <see cref="IllustrationPointsTableControl"/>.
        /// </summary>
        public IllustrationPointsTableControl()
        {
            InitializeComponent();
            InitializeDataGridView();
            InitializeEventHandlers();
        }

        /// <summary>
        /// Gets or sets the data of the control.
        /// </summary>
        public IEnumerable<IllustrationPointControlItem> Data
        {
            get
            {
                return data;
            }
            set
            {
                data = value;

                illustrationPointsDataGridViewControl.SetDataSource(data != null
                                                                        ? CreateRows()
                                                                        : null);

                UpdateClosingSituationVisibility();
            }
        }

        public object Selection
        {
            get
            {
                var illustrationPointRow = (IllustrationPointRow) illustrationPointsDataGridViewControl.CurrentRow?.DataBoundItem;

                return illustrationPointRow?.IllustrationPointControlItem;
            }
        }

        private void InitializeEventHandlers()
        {
            illustrationPointsDataGridViewControl.CurrentRowChanged += DataGridViewOnCurrentRowChangedHandler;
        }

        private void DataGridViewOnCurrentRowChangedHandler(object sender, EventArgs e)
        {
            OnSelectionChanged(e);
        }

        private void UpdateClosingSituationVisibility()
        {
            if (data != null)
            {
                if (data.HasMultipleUniqueValues(item => item.ClosingSituation))
                {
                    illustrationPointsDataGridViewControl.SetColumnVisibility(closingSituationColumnIndex, true);
                    return;
                }
            }

            illustrationPointsDataGridViewControl.SetColumnVisibility(closingSituationColumnIndex, false);
        }

        private void InitializeDataGridView()
        {
            illustrationPointsDataGridViewControl.AddTextBoxColumn(nameof(IllustrationPointRow.WindDirection),
                                                                   Resources.IllustrationPoint_WindDirection_DisplayName,
                                                                   true);
            illustrationPointsDataGridViewControl.AddTextBoxColumn(nameof(IllustrationPointRow.ClosingSituation),
                                                                   Resources.IllustrationPoint_ClosingSituation_DisplayName,
                                                                   true);
            illustrationPointsDataGridViewControl.AddTextBoxColumn(nameof(IllustrationPointRow.Probability),
                                                                   Resources.CalculationOutput_CalculatedProbability_DisplayName,
                                                                   true);
            illustrationPointsDataGridViewControl.AddTextBoxColumn(nameof(IllustrationPointRow.Reliability),
                                                                   Resources.CalculationOutput_CalculatedReliability_DisplayName,
                                                                   true);

            illustrationPointsDataGridViewControl.SetColumnVisibility(closingSituationColumnIndex, false);
        }

        private List<IllustrationPointRow> CreateRows()
        {
            return data.Select(illustrationPoint => new IllustrationPointRow(illustrationPoint))
                       .ToList();
        }

        private void OnSelectionChanged(EventArgs e)
        {
            SelectionChanged?.Invoke(this, e);
        }
    }
}