using System;
using Server.Collections;
using Server.Items;
using Server.Mobiles;
using Server.Targeting;

namespace Server.Spells.Necromancy;

public class PoisonStrikeSpell : NecromancerSpell, ITargetingSpell<Mobile>
{
    private static readonly SpellInfo _info = new(
        "Poison Strike",
        "In Vas Nox",
        203,
        9031,
        Reagent.NoxCrystal
    );

    public PoisonStrikeSpell(Mobile caster, Item scroll = null) : base(caster, scroll, _info)
    {
    }

    public override TimeSpan CastDelayBase => TimeSpan.FromSeconds(Core.ML ? 1.75 : 1.5);

    public override double RequiredSkill => 50.0;
    public override int RequiredMana => 17;

    public override bool DelayedDamage => false;

    public void Target(Mobile m)
    {
        if (CheckHSequence(m))
        {
            SpellHelper.Turn(Caster, m);

            /* Creates a blast of poisonous energy centered on the target.
             * The main target is inflicted with a large amount of Poison damage, and all valid targets in a radius of 2 tiles around the main target are inflicted with a lesser effect.
             * One tile from main target receives 50% damage, two tiles from target receives 33% damage.
             */

            // CheckResisted( m );
            // Check magic resist for skill, but do not use return value
            // reports from OSI:  Necro spells don't give Resist gain

            var map = m.Map;

            if (map != null)
            {
                Effects.SendLocationParticles(
                    EffectItem.Create(m.Location, m.Map, EffectItem.DefaultDuration),
                    0x36B0,
                    1,
                    14,
                    63,
                    7,
                    9915,
                    0
                );
                Effects.PlaySound(m.Location, m.Map, 0x229);

                var damage = Utility.RandomMinMax(Core.ML ? 32 : 36, 40) * ((300 + GetDamageSkill(Caster) * 9) / 1000);

                var sdiBonus = (double)AosAttributes.GetValue(Caster, AosAttribute.SpellDamage) / 100;
                var pvmDamage = damage * (1 + sdiBonus);

                if (Core.ML && sdiBonus > 0.15)
                {
                    sdiBonus = 0.15;
                }

                var pvpDamage = damage * (1 + sdiBonus);

                using var pool = PooledRefQueue<Mobile>.Create();

                if (Caster.CanBeHarmful(m, false))
                {
                    pool.Enqueue(m);
                }

                var cbc = Caster as BaseCreature;
                var isMonster = cbc?.Controlled == false && (cbc.IsAnimatedDead || !cbc.Summoned);

                foreach (Mobile targ in m.GetMobilesInRange(2))
                {
                    if (targ == Caster || m == targ || !SpellHelper.ValidIndirectTarget(Caster, targ)
                        || !Caster.CanBeHarmful(targ, false))
                    {
                        continue;
                    }

                    if (isMonster && targ.Player)
                    {
                        continue;
                    }

                    // Animate dead casting poison strike shouldn't hit: familiars or player or pets
                    if (targ is BaseCreature bc)
                    {
                        if (bc.IsAnimatedDead)
                        {
                            continue;
                        }

                        if (isMonster && (bc.Controlled || bc.Summoned || bc.Team == cbc.Team || bc.IsNecroFamiliar))
                        {
                            continue;
                        }
                    }

                    pool.Enqueue(targ);
                }

                while (pool.Count > 0)
                {
                    var targ = pool.Dequeue();
                    int num;

                    if (targ.InRange(m.Location, 0))
                    {
                        num = 1;
                    }
                    else if (targ.InRange(m.Location, 1))
                    {
                        num = 2;
                    }
                    else
                    {
                        num = 3;
                    }

                    Caster.DoHarmful(targ);
                    SpellHelper.Damage(
                        this,
                        targ,
                        (m.Player && Caster.Player ? pvpDamage : pvmDamage) / num,
                        0,
                        0,
                        0,
                        100,
                        0
                    );
                }
            }
        }
    }

    public override void OnCast()
    {
        Caster.Target = new SpellTarget<Mobile>(this, TargetFlags.Harmful);
    }
}