using System;
using ModernUO.Serialization;

namespace Server.Items;

[SerializationGenerator(0, false)]
public partial class PowerScroll : SpecialScroll
{
    private static readonly SkillName[] _preAosSkills =
    {
        SkillName.Blacksmith,
        SkillName.Tailoring,
        SkillName.Swords,
        SkillName.Fencing,
        SkillName.Macing,
        SkillName.Archery,
        SkillName.Wrestling,
        SkillName.Parry,
        SkillName.Tactics,
        SkillName.Anatomy,
        SkillName.Healing,
        SkillName.Magery,
        SkillName.Meditation,
        SkillName.EvalInt,
        SkillName.MagicResist,
        SkillName.AnimalTaming,
        SkillName.AnimalLore,
        SkillName.Veterinary,
        SkillName.Musicianship,
        SkillName.Provocation,
        SkillName.Discordance,
        SkillName.Peacemaking
    };

    private static readonly SkillName[] _aosSkills =
    {
        SkillName.Chivalry,
        SkillName.Focus,
        SkillName.Necromancy,
        SkillName.Stealing,
        SkillName.Stealth,
        SkillName.SpiritSpeak
    };

    private static readonly SkillName[] _seSkills =
    {
        SkillName.Ninjitsu,
        SkillName.Bushido
    };

    private static readonly SkillName[] _mlSkills =
    {
        SkillName.Spellweaving
    };

    /*
    private static SkillName[] _saSkills = new SkillName[]
      {
        SkillName.Throwing,
        SkillName.Mysticism,
        SkillName.Imbuing
      };

    private static SkillName[] _hsSkills = new SkillName[]
      {
        SkillName.Fishing
      };
    */

    private static SkillName[] _skills;

    [Constructible]
    public PowerScroll(SkillName skill = SkillName.Alchemy, double value = 0.0) : base(skill, value)
    {
        Hue = 0x481;

        if (Value - 105.0 < 0.1 || skill is SkillName.Blacksmith or SkillName.Tailoring)
        {
            LootType = LootType.Regular;
        }
    }

    /* Using a scroll increases the maximum amount of a specific skill or your maximum statistics.
     * When used, the effect is not immediately seen without a gain of points with that skill or statistics.
     * You can view your maximum skill values in your skills window.
     * You can view your maximum statistic value in your statistics window.
     */
    public override int Message => 1049469;

    public override int Title
    {
        get
        {
            var skillValue = Value;
            if (skillValue is >= 105 and <= 120)
            {
                var truncValue = Math.Floor(skillValue);
                if (skillValue - truncValue < 0.1)
                {
                    /* Wondrous Scroll (105 Skill): OR
                     * Exalted Scroll (110 Skill): OR
                     * Mythical Scroll (115 Skill): OR
                     * Legendary Scroll (120 Skill):
                     */
                    return 1049635 + ((int)truncValue - 105) / 5;
                }
            }

            return 0;
        }
    }

    public override string DefaultTitle => Html.Color($"Power Scroll ({Math.Floor(Value * 10) / 10:0.#} Skill):", 0xFFFFFF);

    public static SkillName[] Skills
    {
        get
        {
            if (_skills == null)
            {
                var totalSkills = _preAosSkills.Length;
                if (Core.AOS)
                {
                    totalSkills += _aosSkills.Length;
                }

                if (Core.SE)
                {
                    totalSkills += _seSkills.Length;
                }

                if (Core.ML)
                {
                    totalSkills += _mlSkills.Length;
                }

                _skills = new SkillName[totalSkills];
                Array.Copy(_preAosSkills, 0, _skills, 0, _preAosSkills.Length);
                var pos = 0;

                if (Core.AOS)
                {
                    pos = _preAosSkills.Length;
                    Array.Copy(_aosSkills, 0, _skills, pos, _aosSkills.Length);
                }

                if (Core.SE)
                {
                    pos += _aosSkills.Length;
                    Array.Copy(_seSkills, 0, _skills, pos, _seSkills.Length);
                }

                if (Core.ML)
                {
                    pos += _seSkills.Length;
                    Array.Copy(_mlSkills, 0, _skills, pos, _mlSkills.Length);
                }
            }

            return _skills;
        }
    }

    public static PowerScroll CreateRandom(int min, int max)
    {
        min /= 5;
        max /= 5;

        return new PowerScroll(Skills.RandomElement(), 100 + Utility.RandomMinMax(min, max) * 5);
    }

    public static PowerScroll CreateRandomNoCraft(int min, int max)
    {
        min /= 5;
        max /= 5;

        SkillName skillName;

        do
        {
            skillName = Skills.RandomElement();
        } while (skillName is SkillName.Blacksmith or SkillName.Tailoring);

        return new PowerScroll(skillName, 100 + Utility.RandomMinMax(min, max) * 5);
    }

    public override void AddNameProperty(IPropertyList list)
    {
        var skillValue = Value;
        // Truncate to 1 decimal by multiplying by 10 and flooring.
        var truncValue = Math.Floor(skillValue * 10) / 10.0;

        // If the scroll is a 105-120 skill scroll and the value is a whole multiple of 5.
        if (skillValue is >= 105 and <= 120 && skillValue - truncValue < 0.1)
        {
            var level = Math.DivRem((int)truncValue - 105, 5, out var rem);
            if (rem == 0)
            {
                /* a wondrous scroll of ~1_type~ (105 Skill) OR
                 * an exalted scroll of ~1_type~ (110 Skill) OR
                 * a mythical scroll of ~1_type~ (115 Skill) OR
                 * a legendary scroll of ~1_type~ (120 Skill)
                 */
                list.AddLocalized(1049639 + level, AosSkillBonuses.GetLowercaseLabel(Skill));
                return;
            }
        }

        list.Add($"a power scroll of {GetSkillName()} ({truncValue:0.#} Skill)");
    }

    public override void OnSingleClick(Mobile from)
    {
        var skillValue = Value;
        // Truncate to 1 decimal by multiplying by 10 and flooring.
        // This will need to be divided by 10 to get the actual value.
        var truncValue = Math.Floor(skillValue * 10) / 10.0;

        // If the scroll is a 105-120 skill scroll and the value is a whole multiple of 5.
        if (skillValue is >= 105 and <= 120 && skillValue - truncValue < 0.1)
        {
            var level = Math.DivRem((int)truncValue - 105, 5, out var rem);
            if (rem == 0)
            {
                /* a wondrous scroll of ~1_type~ (105 Skill) OR
                 * an exalted scroll of ~1_type~ (110 Skill) OR
                 * a mythical scroll of ~1_type~ (115 Skill) OR
                 * a legendary scroll of ~1_type~ (120 Skill)
                 */
                LabelTo(from, 1049639 + level, $"#{AosSkillBonuses.GetLowercaseLabel(Skill)}");
                return;
            }
        }

        LabelTo(from, $"a power scroll of {GetSkillName()} ({truncValue:0.#} Skill)");
    }

    public override bool CanUse(Mobile from)
    {
        if (!base.CanUse(from))
        {
            return false;
        }

        var skill = from.Skills[Skill];

        if (skill == null)
        {
            return false;
        }

        if (skill.Cap >= Value)
        {
            // Your ~1_type~ is too high for this power scroll.
            from.SendLocalizedMessage(1049511, $"#{AosSkillBonuses.GetLowercaseLabel(Skill)}");
            return false;
        }

        return true;
    }

    public override void Use(Mobile from)
    {
        if (!CanUse(from))
        {
            return;
        }

        // You feel a surge of magic as the scroll enhances your ~1_type~!
        from.SendLocalizedMessage(1049513, $"#{AosSkillBonuses.GetLowercaseLabel(Skill)}");

        from.Skills[Skill].Cap = Value;

        Effects.SendLocationParticles(
            EffectItem.Create(from.Location, from.Map, EffectItem.DefaultDuration),
            0,
            0,
            0,
            0,
            0,
            5060,
            0
        );
        Effects.PlaySound(from.Location, from.Map, 0x243);

        Effects.SendMovingParticles(
            new Entity(Serial.Zero, new Point3D(from.X - 6, from.Y - 6, from.Z + 15), from.Map),
            from,
            0x36D4,
            7,
            0,
            false,
            true,
            0x497,
            0,
            9502,
            1,
            0,
            (EffectLayer)255,
            0x100
        );
        Effects.SendMovingParticles(
            new Entity(Serial.Zero, new Point3D(from.X - 4, from.Y - 6, from.Z + 15), from.Map),
            from,
            0x36D4,
            7,
            0,
            false,
            true,
            0x497,
            0,
            9502,
            1,
            0,
            (EffectLayer)255,
            0x100
        );
        Effects.SendMovingParticles(
            new Entity(Serial.Zero, new Point3D(from.X - 6, from.Y - 4, from.Z + 15), from.Map),
            from,
            0x36D4,
            7,
            0,
            false,
            true,
            0x497,
            0,
            9502,
            1,
            0,
            (EffectLayer)255,
            0x100
        );

        Effects.SendTargetParticles(from, 0x375A, 35, 90, 0x00, 0x00, 9502, (EffectLayer)255, 0x100);

        Delete();
    }
}