SPT-Server-Build/Libraries/SPTarkov.Server.Core/Extensions/QuestConditionExtensions.cs

using SPTarkov.Server.Core.Models.Eft.Common.Tables;

namespace SPTarkov.Server.Core.Extensions
{
    public static class QuestConditionExtensions
    {
        /// <summary>
        /// Get all quest conditions from provided list
        /// </summary>
        /// <param name="questConditions">Input conditions</param>
        /// <param name="furtherFilter">OPTIONAL - Additional filter code to run</param>
        /// <returns></returns>
        public static List<QuestCondition> GetQuestConditions(
            this List<QuestCondition> questConditions,
            Func<QuestCondition, List<QuestCondition>>? furtherFilter = null
        )
        {
            return FilterConditions(questConditions, "Quest", furtherFilter);
        }

        public static List<QuestCondition> GetLevelConditions(
            this List<QuestCondition> questConditions,
            Func<QuestCondition, List<QuestCondition>>? furtherFilter = null
        )
        {
            return FilterConditions(questConditions, "Level", furtherFilter);
        }

        public static List<QuestCondition> GetLoyaltyConditions(
            this List<QuestCondition> questConditions,
            Func<QuestCondition, List<QuestCondition>>? furtherFilter = null
        )
        {
            return FilterConditions(questConditions, "TraderLoyalty", furtherFilter);
        }

        public static List<QuestCondition> GetStandingConditions(
            this List<QuestCondition> questConditions,
            Func<QuestCondition, List<QuestCondition>>? furtherFilter = null
        )
        {
            return FilterConditions(questConditions, "TraderStanding", furtherFilter);
        }

        private static List<QuestCondition> FilterConditions(
            List<QuestCondition> questConditions,
            string questType,
            Func<QuestCondition, List<QuestCondition>>? furtherFilter = null
        )
        {
            var filteredQuests = questConditions
                .Where(c =>
                {
                    if (c.ConditionType == questType)
                    // return true or run the passed in function
                    {
                        return furtherFilter is null || furtherFilter(c).Any();
                    }

                    return false;
                })
                .ToList();

            return filteredQuests;
        }
    }
}