using System;
using Server.Engines.Craft;
using Server.Factions;
using Server.Mobiles;
using Server.Regions;

namespace Server.Items
{
    public class RepairDeed : Item
    {
        public enum RepairSkillType
        {
            Smithing,
            Tailoring,
            Tinkering,
            Carpentry,
            Fletching
        }

        private Mobile m_Crafter;

        private RepairSkillType m_Skill;
        private double m_SkillLevel;

        [Constructible]
        public RepairDeed(RepairSkillType skill, double level, bool normalizeLevel) : this(
            skill,
            level,
            null,
            normalizeLevel
        )
        {
        }

        [Constructible]
        public RepairDeed(
            RepairSkillType skill = RepairSkillType.Smithing, double level = 100.0,
            Mobile crafter = null, bool normalizeLevel = true
        ) : base(0x14F0)
        {
            if (normalizeLevel)
            {
                SkillLevel = (int)(level / 10) * 10;
            }
            else
            {
                SkillLevel = level;
            }

            m_Skill = skill;
            m_Crafter = crafter;
            Hue = 0x1BC;
            LootType = LootType.Blessed;
        }

        public RepairDeed(Serial serial) : base(serial)
        {
        }

        public override bool DisplayLootType => false;

        [CommandProperty(AccessLevel.GameMaster)]
        public RepairSkillType RepairSkill
        {
            get => m_Skill;
            set
            {
                m_Skill = value;
                InvalidateProperties();
            }
        }

        [CommandProperty(AccessLevel.GameMaster)]
        public double SkillLevel
        {
            get => m_SkillLevel;
            set
            {
                m_SkillLevel = Math.Clamp(value, 0, 120.0);
                InvalidateProperties();
            }
        }

        [CommandProperty(AccessLevel.GameMaster)]
        public Mobile Crafter
        {
            get => m_Crafter;
            set
            {
                m_Crafter = value;
                InvalidateProperties();
            }
        }

        public override void AddNameProperty(ObjectPropertyList list)
        {
            list.Add(
                1061133,
                $"{GetSkillTitle(m_SkillLevel)}\t{RepairSkillInfo.GetInfo(m_Skill).Name}"
            ); // A repair service contract from ~1_SKILL_TITLE~ ~2_SKILL_NAME~.
        }

        public override void GetProperties(ObjectPropertyList list)
        {
            base.GetProperties(list);

            if (m_Crafter != null)
            {
                list.Add(1050043, m_Crafter.Name); // crafted by ~1_NAME~
            }

            // On OSI it says it's exceptional.  Intentional difference.
        }

        public override void OnSingleClick(Mobile from)
        {
            if (Deleted || !from.CanSee(this))
            {
                return;
            }

            LabelTo(
                from,
                1061133,
                $"{GetSkillTitle(m_SkillLevel)}\t{RepairSkillInfo.GetInfo(m_Skill).Name}"
            ); // A repair service contract from ~1_SKILL_TITLE~ ~2_SKILL_NAME~.

            if (m_Crafter != null)
            {
                LabelTo(from, 1050043, m_Crafter.Name); // crafted by ~1_NAME~
            }
        }

        private static TextDefinition GetSkillTitle(double skillLevel)
        {
            var skill = (int)(skillLevel / 10);

            if (skill >= 11)
            {
                return 1062008 + skill - 11;
            }

            if (skill >= 5)
            {
                return 1061123 + skill - 5;
            }

            return skill switch
            {
                4 => "a Novice",
                3 => "a Neophyte",
                _ => "a Newbie"
            };
        }

        public static RepairSkillType GetTypeFor(CraftSystem s)
        {
            for (var i = 0; i < RepairSkillInfo.Table.Length; i++)
            {
                if (RepairSkillInfo.Table[i].System == s)
                {
                    return (RepairSkillType)i;
                }
            }

            return RepairSkillType.Smithing;
        }

        public override void OnDoubleClick(Mobile from)
        {
            if (Check(from))
            {
                Repair.Do(from, RepairSkillInfo.GetInfo(m_Skill).System, this);
            }
        }

        public bool Check(Mobile from)
        {
            if (!IsChildOf(from.Backpack))
            {
                from.SendLocalizedMessage(1047012); // The contract must be in your backpack to use it.
            }
            else if (!VerifyRegion(from))
            {
                TextDefinition.SendMessageTo(from, RepairSkillInfo.GetInfo(m_Skill).NotNearbyMessage);
            }
            else
            {
                return true;
            }

            return false;
        }

        public bool VerifyRegion(Mobile m) => m.Region.IsPartOf<TownRegion>() &&
                                              Faction.IsNearType(m, RepairSkillInfo.GetInfo(m_Skill).NearbyTypes, 6);

        public override void Serialize(IGenericWriter writer)
        {
            base.Serialize(writer);

            writer.Write(0); // version

            writer.Write((int)m_Skill);
            writer.Write(m_SkillLevel);
            writer.Write(m_Crafter);
        }

        public override void Deserialize(IGenericReader reader)
        {
            base.Deserialize(reader);

            var version = reader.ReadInt();

            switch (version)
            {
                case 0:
                    {
                        m_Skill = (RepairSkillType)reader.ReadInt();
                        m_SkillLevel = reader.ReadDouble();
                        m_Crafter = reader.ReadEntity<Mobile>();

                        break;
                    }
            }
        }

        private class RepairSkillInfo
        {
            public RepairSkillInfo(
                CraftSystem system, Type[] nearbyTypes, TextDefinition notNearbyMessage,
                TextDefinition name
            )
            {
                System = system;
                NearbyTypes = nearbyTypes;
                NotNearbyMessage = notNearbyMessage;
                Name = name;
            }

            public RepairSkillInfo(CraftSystem system, Type nearbyType, TextDefinition notNearbyMessage, TextDefinition name)
                : this(system, new[] { nearbyType }, notNearbyMessage, name)
            {
            }

            public TextDefinition NotNearbyMessage { get; }

            public TextDefinition Name { get; }

            public CraftSystem System { get; }

            public Type[] NearbyTypes { get; }

            public static RepairSkillInfo[] Table { get; } =
            {
                new(DefBlacksmithy.CraftSystem, typeof(Blacksmith), 1047013, 1023015),
                new(DefTailoring.CraftSystem, typeof(Tailor), 1061132, 1022981),
                new(DefTinkering.CraftSystem, typeof(Tinker), 1061166, 1022983),
                new(DefCarpentry.CraftSystem, typeof(Carpenter), 1061135, 1060774),
                new(DefBowFletching.CraftSystem, typeof(Bowyer), 1061134, 1023005)
            };

            public static RepairSkillInfo GetInfo(RepairSkillType type)
            {
                var v = (int)type;

                if (v < 0 || v >= Table.Length)
                {
                    v = 0;
                }

                return Table[v];
            }
        }
    }
}