using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UIElements;
using Cysharp.Threading.Tasks;
using System.Data;
using System.Linq;
namespace BITKit.UX
{
    public class UXTable : UXElement<VisualElement>, IProvider<DataTable>
    {
        public int createTableTimes = 0;
        Label[,] labelTable = new Label[0, 0];
        public new DataTable Get()
        {
            return null;
        }
        public async void Set(DataTable t)
        {
            try
            {
                await UniTask.SwitchToMainThread(cancellationToken);
                if (labelTable.GetLength(0) != t.Rows.Count)
                {
                    CreateDataTable();
                }
                t.Rows.Count.ForEach(row =>
                {
                    t.Columns.Count.ForEach(col =>
                    {
                        var value = t.Rows[row][col] as string;
                        var label = labelTable[row, col];
                        label.text = value;
                    });
                });
                t.Dispose();
            }
            catch (System.Exception e)
            {
                if (e is OperationCanceledException)
                {

                }
                else
                {
                    Debug.LogException(e);
                }
            }
            void CreateDataTable()
            {
                var width = visualElement.layout.width / t.Columns.Count;
                int rowCount = 0;
                int colCount = 0;

                visualElement.Clear();
                visualElement.style.flexDirection = new(FlexDirection.Column);

                labelTable = new Label[t.Rows.Count, t.Columns.Count];

                foreach (DataRow row in t.Rows)
                {
                    VisualElement element = new();
                    var style = element.style;
                    style.flexDirection = FlexDirection.Row;
                    SetUpStyle(element.style);

                    colCount = 0;

                    foreach (DataColumn col in t.Columns)
                    {
                        var value = row[col];
                        var label = new Label(value?.ToString());
                        //label.style.width = width;
                        SetUpStyle(label.style);
                        element.Add(label);

                        labelTable[rowCount, colCount] = label;

                        colCount++;
                    }
                    rowCount++;

                    visualElement.Add(element);
                }
                createTableTimes++;
            }
        }
        void SetUpStyle(IStyle style)
        {
            style.marginTop = 0;
            style.marginLeft = 0;
            style.marginRight = 0;
            style.marginBottom = 0;
            style.paddingTop = 0;
            style.paddingLeft = 0;
            style.paddingRight = 0;
            style.paddingBottom = 0;
        }
    }
}