src/SSCMS/Utils/ListUtils.cs

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using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Datory.Utils;
using SSCMS.Configuration;
using SSCMS.Dto;

namespace SSCMS.Utils
{
    public static class ListUtils
    {
        public static T FirstOrDefault<T>(IEnumerable<T> list, Func<T, bool> predicate)
        {
            return list == null ? default : list.FirstOrDefault(predicate);
        }

        public static bool Equals<T>(List<T> list1, List<T> list2)
        {
            if (list1 == null && list2 == null) return true;
            if (list1 == null || list2 == null) return false;
            return list1.All(list2.Contains) && list1.Count == list2.Count;
        }

        public static bool Contains(string strCollection, int inInt)
        {
            return Contains(GetIntList(strCollection), inInt);
        }

        public static bool ContainsIgnoreCase(IEnumerable<string> list, string target)
        {
            return list != null && list.Any(element => StringUtils.EqualsIgnoreCase(element, target));
        }

        public static bool Contains<T>(IEnumerable<T> list, T value)
        {
            return list != null && list.Contains(value);
        }

        public static bool Remove<T>(List<T> list, T value)
        {
            return list != null && list.Remove(value);
        }

        public static bool RemoveIgnoreCase(List<string> list, string value)
        {
            if (list == null) return false;

            var item = list.FirstOrDefault(x => StringUtils.EqualsIgnoreCase(x, value));
            return list.Remove(item);
        }

        public static List<T> Add<T>(List<T> list, T value)
        {
            if (list == null)
            {
                list = new List<T>();
            }
            list.Add(value);
            return list;