using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Windows.Media.Imaging;
using FastReport.Dialog;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;
using org.w3c.dom.html;
using static InABox.Core.DataModelTemplate;
using ScriptEditorWindow = InABox.DynamicGrid.ScriptEditorWindow;

namespace PRSDesktop
{
    public class DataModelTemplateGrid : DynamicDataGrid<DataModelTemplate>
    {
        private readonly BitmapImage _edit = PRSDesktop.Resources.pencil.AsBitmapImage();
        private DataModelTemplate[] Items;

        public DataModelTemplateGrid()
        {
            HiddenColumns.Add(x => x.Template);

            OnCustomiseEditor += DataModelTemplateGrid_OnCustomiseEditor;
        }

        private void DataModelTemplateGrid_OnCustomiseEditor(IDynamicEditorForm sender, DataModelTemplate[]? items, DynamicGridColumn column, BaseEditor editor)
        {
            if (editor == null)
                return;

            if (column.ColumnName.Equals("Template")
                || column.ColumnName.Equals("To")
                || column.ColumnName.Equals("Subject")
                || column.ColumnName.Equals("AttachmentName")
                )
            {
                var edt = editor as TextBoxEditor;
                edt.Buttons = new EditorButton[]
                {
                    new EditorButton(items.FirstOrDefault(), "Edit", 60, TemplateEditorClicked, true)
                };
            }


        }

        private void TemplateEditorClicked(object editor, object? item)
        {
            var template = item as DataModelTemplate;

            var edtControl = editor as TextBoxEditorControl;
            var col = edtControl.ColumnName;

            var toEdit = CoreUtils.GetPropertyValue(template, col);

            var edt = new ScriptEditorWindow(toEdit as string, SyntaxLanguage.HTML);

            var snippets = new Dictionary<string, string[]>();
            foreach (var (name, table) in Model.ModelTables)
            {
                var variable = name.Substring(0, 1).ToLower();

                var cursnippets = new List<string>();

                cursnippets.Add("{{ for " + variable + " in " + name + " }}\n\n{{ end }}");
                if(table.Type is not null)
                {
                    var props = DatabaseSchema.Properties(table.Type)
                        .Where(x => x.Editor != null && x.Editor.GetType() != typeof(NullEditor) && x.Editor.Visible != Visible.Hidden);
                    foreach (var prop in props)
                        cursnippets.Add("{{ " + variable + "." + prop.Name + " }}");
                }
                snippets[name] = cursnippets.ToArray();
            }
            edt.Snippets = snippets;
            if (edt.ShowDialog() == true)
            {
                CoreUtils.SetPropertyValue(template, col, edt.Script);
            }
        }
        
        // private String[] EmailTemplateManagerWindow_OnGetVariables()
        // {
        //     List<string> list = new List<string>();
        //     foreach (var table in Model.DefaultTables)
        //     {
        //         foreach (var col in table.Columns)
        //         {
        //             if (col.ToString() != "ID")
        //                 list.Add(table.ToString() + "." + col.ToString());
        //         }
        //     }
        //     list.Sort();
        //     return list.ToArray();
        // }
        
        public DataModel Model { get; set; }

        protected override void Reload(
        	Filters<DataModelTemplate> criteria, Columns<DataModelTemplate> columns, ref SortOrder<DataModelTemplate>? sort,
        	CancellationToken token, Action<CoreTable?, Exception?> action)
        {
            criteria.Add(new Filter<DataModelTemplate>(x => x.Model).IsEqualTo(Model.Name));
            base.Reload(criteria, columns, ref sort, token, action);
        }

        public override DataModelTemplate CreateItem()
        {
            var result = base.CreateItem();
            result.Visible = true;
            result.Model = Model.Name;
            return result;
        }
    }
}