using System;
using System.Collections.Generic;
using Comal.Classes;
using InABox.Core;
using InABox.DynamicGrid;
using System.Linq;
using System.Linq.Expressions;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;
using System.Windows.Media.Imaging;
using AutoProperties;
using Comal.Classes.SecurityDescriptors;
using InABox.Clients;
using InABox.Configuration;
using InABox.Wpf;
using InABox.WPF;

namespace PRSDesktop.Integrations.Common;

public class IntegrationGridCreateEntityArgs<TEntity, TType>(TEntity entity, TType mapping)
{
    public TEntity Entity { get; private set; } = entity;
    public TType Mapping { get; private set; } = mapping;
}

public abstract class BaseIntegrationGrid<TType, TEntity,TLink> : DynamicItemsListGrid<TType> 
    where TType : BaseIntegrationSource<TEntity,TLink>, new()
    where TEntity : Entity, IRemotable, IPersistent, new()
    where TLink : EntityLink<TEntity>
{
    
    private static readonly DependencyProperty SourceTypeProperty = DependencyProperty.Register(
        nameof(SourceType), 
        typeof(IntegrationSourceType), 
        typeof(BaseIntegrationGrid<TType, TEntity,TLink>)
    );

    public IntegrationSourceType SourceType
    {
        get => (IntegrationSourceType)GetValue(SourceTypeProperty);
        set => SetValue(SourceTypeProperty, value);
    } 
    
    private static readonly DependencyProperty CreateEntityProperty = DependencyProperty.Register(
        nameof(CreateEntity), 
        typeof(ICommand), 
        typeof(BaseIntegrationGrid<TType, TEntity,TLink>)
    );

    public ICommand? CreateEntity
    {
        get => GetValue(CreateEntityProperty) as ICommand;
        set => SetValue(CreateEntityProperty, value);
    } 
    
    private static readonly DependencyProperty AfterCreateEntityProperty = DependencyProperty.Register(
        nameof(AfterCreateEntity), 
        typeof(ICommand), 
        typeof(BaseIntegrationGrid<TType, TEntity,TLink>)
    );

    public ICommand? AfterCreateEntity
    {
        get => GetValue(AfterCreateEntityProperty) as ICommand;
        set => SetValue(AfterCreateEntityProperty, value);
    }

    private DynamicImageColumn _createordelete;
    
    protected override void Init()
    {
        base.Init();
        
        var required = Columns.Required<TType>();
        foreach (var req in required)
            HiddenColumns.Add(req.Property);
        HiddenColumns.Add(x => x.DirectMatch);
        
        AddButton("Create All", PRSDesktop.Resources.plus.AsBitmapImage(), CreateAll);

        _createordelete = new DynamicImageColumn(CreateImage, CreateOrDeleteOne);
        ActionColumns.Add(_createordelete);
    }
    
    private BitmapImage? CreateImage(CoreRow? row)
    {
        return row == null 
            ? PRSDesktop.Resources.plus.AsBitmapImage()
            : row.Get<TType, Guid>(x => x.Entity.ID) == Guid.Empty
                ? PRSDesktop.Resources.plus.AsBitmapImage()
                : row.Get<TType,bool>(x=>x.DirectMatch)
                    ? PRSDesktop.Resources.locked.AsBitmapImage()
                    : PRSDesktop.Resources.minus.AsBitmapImage();
    }

    private bool CreateOrDeleteOne(CoreRow? row)
    {
        if (row == null)
            return false;

        if (row.Get<TType, bool>(x => x.DirectMatch) && row.Get<TType,Guid>(x=>x.Entity.ID) != Guid.Empty)
            return false;
        
        var item = Items[row.Index];
        if (item.Entity.ID == Guid.Empty)
            CreateItem(item);
        else
            DeleteItem(item);
        Refresh(false,true);
        
        DoChanged();
        
        return true;
        
        
    }

    private bool CreateAll(Button button, CoreRow[] rows)
    {
        foreach (var item in Items.Where(x => !string.IsNullOrWhiteSpace(x.Code) && x.Entity.ID == Guid.Empty))
            CreateItem(item);
        DoChanged();
        return true;
    }

    protected abstract Expression<Func<TEntity,object?>> EntityCode { get; }
    
    private void CreateItem(TType item)
    {
        var lookup = Client.Query<TEntity>(
            new Filter<TEntity>(EntityCode).IsEqualTo(item.Code),
            Columns.Required<TEntity>().Add(EntityCode)
        ).ToArray<TEntity>();
        if (lookup.Any())
        {
            item.Source = SourceType;
            item.Entity.CopyFrom(lookup.First());
            item.DirectMatch = true;
            return;
        }
        
        var entity = new TEntity();
        var args = new IntegrationGridCreateEntityArgs<TEntity,TType>(entity,item);
        
        try
        {
            CreateEntity?.Execute(args);
            new Client<TEntity>().Save(entity, "Created by Integration Window");
            item.Source = SourceType;
            item.Entity.CopyFrom(entity);
            item.DirectMatch = true;
            try
            {
                var args2 = new IntegrationGridCreateEntityArgs<TEntity,TType>(entity,item);
                AfterCreateEntity?.Execute(args2);
            }
            catch (Exception e)
            {
                MessageWindow.ShowError(e.Message, e, "AfterCreate Error");
                Logger.Send(LogType.Error,"",$"Exception in AfterCreateEntity: {e.Message}\n{e.StackTrace}");
            }
            
        }
        catch (Exception e)
        {
            MessageWindow.ShowError(e.Message, e, "CreateItem Error");
            Logger.Send(LogType.Error,"",$"Exception in CreateEntity: {e.Message}\n{e.StackTrace}");
        }
        
    }
    
    private void DeleteItem(TType item)
    {
        MultiQuery query = new();
        query.Add(
            new Filter<TEntity>(EntityCode).IsEqualTo(item.Code),
            Columns.Required<TEntity>().Add(x => x.ID).Add(EntityCode)
        );
        query.Add(
            new Filter<TType>(x=>x.Entity.ID).IsEqualTo(item.Entity.ID).And(x=>x.Code).IsEqualTo(item.Code),
            Columns.Required<TType>().Add(x=>x.ID)
        );
        query.Query();
        var mappings = query.Get<TType>().ToArray<TType>();

        if (mappings.Any())
        {
            item.ID = Guid.Empty;
            Client.Delete(mappings, "Removed By AWG Mapping Window");
        }

        var entities = query.Get<TEntity>().ToArray<TEntity>();
        if (entities.Any())
        {
            item.Entity.CopyFrom(entities.First());
            item.DirectMatch = true;
        }
        else
        {
            item.Entity.CopyFrom(new TEntity());
            item.DirectMatch = false;
        }
        item.CommitChanges();
        SaveItem(item);
        DoChanged();
    }

    protected override void DoReconfigure(DynamicGridOptions options)
    {
        base.DoReconfigure(options);
        options.AddRows = false;
        options.EditRows = false;
        options.DeleteRows = false;
        options.FilterRows = true;
        options.HideDatabaseFilters = true;
        options.DirectEdit = true;
        options.HideDirectEditButton = true;
        options.SelectColumns = true;
        options.MultiSelect = true;
        options.RecordCount = true;
    }

    protected override DynamicGridColumns LoadColumns()
    {
        var result = new DynamicGridColumns();
        result.Add<TType>(x => x.Code, 250, "Code");
        result.Add<TType>(x => x.Description, 0, "Description");
        result.Add<TType>(x => x.Entity.ID, 200, typeof(TEntity).GetCaption());

        return result;
    }

    protected override BaseEditor CustomiseEditor(DynamicGridColumn column, BaseEditor editor)
    {
        editor = base.CustomiseEditor(column, editor);
        if (String.Equals(CoreUtils.GetFullPropertyName<TType, string>(x => x.Code, "."), column.ColumnName))
            editor.Editable = Editable.Disabled;
        else  if (String.Equals(CoreUtils.GetFullPropertyName<TType, string>(x => x.Description, "."), column.ColumnName))
            editor.Editable = Editable.Disabled;
        else if (String.Equals(CoreUtils.GetFullPropertyName<TType, Guid>(x => x.Entity.ID, "."), column.ColumnName))
        {
            var popup = new CodePopupEditor(typeof(TEntity)) { CodeColumn = "Code", CanAdd = Security.CanEdit<TEntity>() };
            var required = Columns.Required<TEntity>();
            foreach (var req in required)
                popup.OtherColumns[$"Entity.{req.Property}"] = req.Property;
            popup.OnCreateItem += o =>
            {

            };
            editor = popup;
        }

        // else if(new Column<TType>(x => x.Entity.ID).IsEqualTo(column.ColumnName) && editor is CodePopupEditor popup)
        //     popup.CanAdd = Security.CanEdit<TEntity>();
        return editor;
    }

    protected override void OnAfterEditorValueChanged(DynamicEditorGrid? grid, TType[] items, AfterEditorValueChangedArgs args,
        Dictionary<string, object?> changes)
    {
        base.OnAfterEditorValueChanged(grid, items, args, changes);
        //DoChanged();
    }

    public override void SaveItem(TType item)
    {
        var code = CoreUtils.GetPropertyValue(item.Entity, CoreUtils.GetFullPropertyName(EntityCode, "."))?.ToString() ?? "";
        item.DirectMatch = Equals(code, item.Code);

        if (!Equals(item.ID, Guid.Empty) && (Equals(code, item.Code) || string.IsNullOrWhiteSpace(code)))
        {
            Client.Delete(item, "Removed By AWG Mapping Window");
            item.ID = Guid.Empty;
            item.CommitChanges();
            return;
        }
        
        if (!string.IsNullOrWhiteSpace(code) && !Equals(code,item.Code))
            Client.Save(item,"Updated by Integration Window ");
        
        base.SaveItem(item);
        //DoChanged();

    }
    
}