using System;
using System.Windows.Media.Imaging;
using Comal.Classes;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;

namespace PRSDesktop
{
    public class MeetingItemDocumentGrid : DynamicDataGrid<MeetingItemDocument>
    {
    
        public Guid MeetingItemID { get; set; }
        
        public MeetingItemDocumentGrid()
        {
            Options.BeginUpdate()
                .Clear()
                .Add(DynamicGridOption.AddRows)
                .Add(DynamicGridOption.DeleteRows)
                .Add(DynamicGridOption.RecordCount)
                .EndUpdate();
            HiddenColumns.Add(x => x.DocumentLink.ID);
            HiddenColumns.Add(x => x.EntityLink.ID);
            HiddenColumns.Add(x => x.DocumentLink.FileName);
            ActionColumns.Add(new DynamicImageColumn(DocumentImage, ViewDocument) { Position = DynamicActionColumnPosition.Start });
        }
        
        protected override DynamicGridColumns LoadColumns()
        {
            return new DynamicGridColumns()
            {
                new DynamicGridColumn()
                {
                    ColumnName = CoreUtils.GetFullPropertyName<MeetingItemDocument, String>(x => x.DocumentLink.FileName, "."), 
                    Width = 0
                }
            };
        }
        
        protected override bool CanCreateItems()
        {
            return MeetingItemID == Guid.Empty
                ? false 
                :  base.CanCreateItems();
        }

        protected override MeetingItemDocument CreateItem()
        {
            if (MeetingItemID == Guid.Empty)
                throw new Exception("No Meeting Selected!");
            var result = base.CreateItem();
            result.EntityLink.ID = MeetingItemID;
            return result;
        }

        protected override void Reload(Filters<MeetingItemDocument> criteria, Columns<MeetingItemDocument> columns, ref SortOrder<MeetingItemDocument> sort,
            Action<CoreTable, Exception> action)
        {
            criteria.Add(MeetingItemID == Guid.Empty
                ? new Filter<MeetingItemDocument>(x=>x.ID).None()
                : new Filter<MeetingItemDocument>(x => x.EntityLink.ID).IsEqualTo(MeetingItemID));
            base.Reload(criteria, columns, ref sort, action);
        }

        private BitmapImage DocumentImage(CoreRow arg)
        {
            return PRSDesktop.Resources.view.AsBitmapImage();
        }

        private bool ViewDocument(CoreRow row)
        {
            var doc = row.ToObject<MeetingItemDocument>();
            var viewer = new DocumentEditor(doc);
            viewer.SaveAllowed = Security.IsAllowed<CanSaveFactoryFloorDrawings>();
            viewer.ShowDialog();
            return false;
        }

    }
}