using System;
using Server;
using Server.Items;
using System.Linq;
using System.Collections.Generic;
using Server.Engines.Despise;
using Server.Engines.Shadowguard;
using Server.Mobiles;

namespace Server.Items
{
    public class RandomItemGenerator
    {
        public static bool Enabled { get { return Core.HS; } }
        public static int FeluccaLuckBonus { get; private set; }
        public static int FeluccaBudgetBonus { get; private set; }

        public static int MaxBaseBudget { get; private set; }
        public static int MinBaseBudget { get; private set; }
        public static int MaxProps { get; private set; }

        public static int MaxAdjustedBudget { get; private set; }
        public static int MinAdjustedBudget { get; private set; }

        public static void Configure()
        {
            FeluccaLuckBonus = Config.Get("Loot.FeluccaLuckBonus", 1000);
            FeluccaBudgetBonus = Config.Get("Loot.FeluccaBudgetBonus", 100);

            MaxBaseBudget = Config.Get("Loot.MaxBaseBudget", 700);
            MinBaseBudget = Config.Get("Loot.MinBaseBudget", 150);
            MaxProps = Config.Get("Loot.MaxProps", 11);

            MaxAdjustedBudget = Config.Get("Loot.MaxAdjustedBudget", 1450);
            MinAdjustedBudget = Config.Get("Loot.MinAdjustedBudget", 150);
        }

        private RandomItemGenerator()
        {
        }

        /// <summary>
        /// This is called for every item that is dropped to a loot pack.
        /// Change the conditions here to add/remove Random Item Drops with REGULAR loot.
        /// </summary>
        /// <param name="item">item to be mutated</param>
        /// <param name="killer">Mobile.LastKiller</param>
        /// <param name="victim">the victim</param>
        public static bool GenerateRandomItem(Item item, Mobile killer, BaseCreature victim)
        {
            if(Enabled)
                return RunicReforging.GenerateRandomItem(item, killer, victim);
            return false;
        }

        /// <summary>
        /// This is called in BaseRunicTool to ensure all items use the new system, as long as its not palyermade.
        /// </summary>
        /// <param name="item"></param>
        /// <param name="luckChance">adjusted luck chance</param>
        /// <param name="attributeCount"></param>
        /// <param name="minIntensity"></param>
        /// <param name="maxIntensity"></param>
        public static void GenerateRandomItem(Item item, int luckChance, int attributeCount, int minIntensity, int maxIntensity)
        {
            int min = (attributeCount * 2) * minIntensity;
            min = min + (int)((double)min * ((double)Utility.RandomMinMax(1, 4) / 10));

            int max = (attributeCount * 2) * maxIntensity;
            max = max + (int)((double)max * ((double)Utility.RandomMinMax(1, 4) / 10));

            RunicReforging.GenerateRandomItem(item, luckChance, min, max);
        }

        /// <summary>
        /// 24000 is the normalized fame for MaxBaseBudget, ie Balron.  
        /// Called in BaseCreature.cs virtual BaseLootBudget Property
        /// </summary>
        /// <param name="bc">Creature to be evaluated</param>
        /// <returns></returns>
        public static int GetBaseBudget(BaseCreature bc)
        {
            if (bc is BaseRenowned)
                return MaxBaseBudget;

            return bc.Fame / (20500 / MaxBaseBudget);
        }

        public static int GetDifficultyFor(BaseCreature bc)
        {
            if (bc == null)
                return 0;

            int fame = bc.Fame;

            if (fame > 0)
            {
                int budget = Math.Min(MaxBaseBudget, GetBaseBudget(bc));

                BossEntry.CheckBoss(bc, ref budget);

                return Math.Max(MinBaseBudget, budget);
            }

            return 0;
        }
    }

    public class BossEntry
    {
        public int Bonus { get; private set; }
        public List<Type> List { get; private set; }

        public BossEntry(int bonus, params Type[] list)
        {
            Bonus = bonus;
            List = list.ToList();
        }

        public static List<BossEntry> Entries { get; set; }

        public static void CheckBoss(BaseCreature bc, ref int budget)
        {
            foreach (var entry in Entries)
            {
                if (entry.List.FirstOrDefault(t => t == bc.GetType() || bc.GetType().IsSubclassOf(t)) != null)
                {
                    budget += entry.Bonus;
                    return;
                }
            }
        }

        public static void Initialize()
        {
            Entries = new List<BossEntry>();

            Entries.Add(
                new BossEntry(100, typeof(BaseRenowned), typeof(TRex), typeof(BaseShipCaptain), typeof(Navrey)));

            Entries.Add(
                new BossEntry(150, typeof(BaseChampion), typeof(Impaler), typeof(DarknightCreeper), typeof(FleshRenderer), 
                                   typeof(ShadowKnight), typeof(AbysmalHorror), typeof(AdrianTheGloriousLord), typeof(AndrosTheDreadLord)));

            Entries.Add(
                new BossEntry(250, typeof(BasePeerless), typeof(Harrower), typeof(DemonKnight), typeof(ShadowguardBoss), typeof(Osiredon)));

            Entries.Add(
                new BossEntry(350, typeof(ClockworkExodus), typeof(CoraTheSorceress), typeof(Charydbis), typeof(Zipactriotl), typeof(MyrmidexQueen)));
        }
    }
}