using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using TradeIdeas.Logging;
using static TIProAutoTradeExtension.ChromiumPositionsControl;

namespace TIProAutoTradeExtension
{
    public static class AutoTradeExtensions
    {
        /// <summary>
        /// Try to find the first non-null position that matches the supplied predicate. 
        /// Returns success if it finds any or failure otherwise.
        /// On success, it returns the first match found in the foundPosition output parameter.
        /// </summary>
        /// <param name="chartPositions"></param>
        /// <param name="match"></param>
        /// <param name="foundPosition"></param>
        /// <returns></returns>
        public static bool TryFind(this List<ChartPosition> chartPositions, Predicate<ChartPosition> match, out ChartPosition foundPosition)
        {
            foundPosition = null;

            if (chartPositions != null && match != null)
            {
                foreach (var position in chartPositions)
                {
                    try
                    {
                        if (position != null && match(position))
                        {
                            foundPosition = position;
                            break;
                        }
                    }
                    catch (Exception ex)
                    {
                        TILogger.Error($"Error procesing position: {ex.Message}", ex, "PositionsGrid", data: position);
                    }
                }
                return foundPosition != null;
            }
            else
                return false;

        }

        /// <summary>
        /// Finds all non-null positions that match the supplied predicate. 
        /// Returns success if it finds any or failure otherwise. 
        /// On success it returns the matching list in the obtainedPositions output parameter.
        /// </summary>
        /// <param name="chartPositions"></param>
        /// <param name="match"></param>
        /// <param name="obtainedPositions"></param>
        /// <returns></returns>
        public static bool TryFindAll(this List<ChartPosition> chartPositions, Predicate<ChartPosition> match, out List<ChartPosition> obtainedPositions)
        {
            obtainedPositions = null;
            if (chartPositions != null && match != null)
            {
                var matchesPositions = new List<ChartPosition>();
                foreach (var position in chartPositions)
                {
                    try
                    {
                        if (position != null && match(position))
                        {
                            matchesPositions.Add(position);
                        }
                    }
                    catch (Exception ex)
                    {
                        TILogger.Error($"Error procesing position: {ex.Message}", ex, "PositionsGrid", data: position);
                    }

                }
                if (matchesPositions.Count > 0)
                    obtainedPositions = matchesPositions.ToList();

                return matchesPositions.Count > 0;
            }
            else
                return false;
        }
    }
}