using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using InABox.Configuration;
using InABox.Core;
using InABox.DynamicGrid;

namespace PRSDesktop.Forms.Export;

internal class ExportColumns : IGlobalConfigurationSettings
{
    public List<ExportColumn> Columns { get; set; }
}

internal class ExportGrid : DynamicGrid<ExportColumn>
{
    private ExportColumns _columns = new();

    private readonly Dictionary<string, Type> _properties;

    private readonly Type _Type;

    public ExportGrid(Type type)
    {
        _Type = type;

        _properties = CoreUtils.PropertyList(_Type, x => true, true);
    }

    protected override void Init()
    {
        base.Init();
        ActionColumns.Add(new DynamicRowMovementColumn(DynamicRowMovement.Up, SwapRows));
        ActionColumns.Add(new DynamicRowMovementColumn(DynamicRowMovement.Down, SwapRows));
    }

    protected override void DoReconfigure(DynamicGridOptions options)
    {
        base.DoReconfigure(options);
        options.RecordCount = true;
    }

    private bool SwapRows(int arg1, int arg2)
    {
        var item = _columns.Columns[arg1];
        _columns.Columns.Remove(item);
        _columns.Columns.Insert(arg2, item);
        return true;
    }

    private DynamicGridColumns ExportGrid_OnLoadColumns(object sender, DynamicGridColumns master)
    {
        var columns = new DynamicGridColumns<ExportColumn>();
        columns.Add(x => x.Name, width: 0);
        columns.Add(x => x.Property, width: 0);
        columns.Add(x => x.Format, width: 50);
        return columns;
    }

    protected override void Reload(
    	Filters<ExportColumn> criteria, Columns<ExportColumn> columns, ref SortOrder<ExportColumn>? sort,
    	CancellationToken token, Action<CoreTable?, Exception?> action)
    {
        _columns = new GlobalConfiguration<ExportColumns>(_Type.Name).Load();
        if (_columns.Columns == null || _columns.Columns.Count == 0)
        {
            if (_columns.Columns == null)
                _columns.Columns = new List<ExportColumn>();
            foreach (var prop in _properties.Keys)
                _columns.Columns.Add(new ExportColumn { Property = prop, Name = prop, Format = "" });
            new GlobalConfiguration<ExportColumns>(_Type.Name).Save(_columns);
        }

        var result = new CoreTable();
        result.LoadColumns(typeof(ExportColumn));
        result.LoadRows(_columns.Columns);
        action.Invoke(result, null);
    }

    //protected override DataTable Reload(Dictionary<string, object> criteria, List<string> columns, string sort)
    //{
    //	_columns = new GlobalConfiguration<ExportColumns>(_Type.Name).Load();
    //	if ((_columns.Columns == null) || (_columns.Columns.Count == 0))
    //	{
    //		if (_columns.Columns == null)
    //			_columns.Columns = new List<ExportColumn>();
    //		foreach (String prop in _properties.Keys)
    //			_columns.Columns.Add(new ExportColumn() { Property = prop, Name = prop, Format = "" });
    //		new GlobalConfiguration<ExportColumns>(_Type.Name).Save(_columns);
    //	}
    //	DataTable result = new DataTable();
    //	result.LoadColumns(typeof(ExportColumn));
    //	result.LoadRows(_columns.Columns);
    //	return result;
    //}

    public override ExportColumn LoadItem(CoreRow row)
    {
        var index = Data.Rows.IndexOf(row);
        return _columns.Columns[index];
    }

    public override void SaveItem(ExportColumn item)
    {
        new GlobalConfiguration<ExportColumns>(_Type.Name).Save(_columns);
    }

    public override void DeleteItems(params CoreRow[] rows)
    {
        foreach (var row in rows.OrderByDescending(x => x.Index))
            _columns.Columns.RemoveAt(row.Index);
        new GlobalConfiguration<ExportColumns>(_Type.Name).Save(_columns);
    }
}