using System;
using Server.Engines.MLQuests;
using Server.Engines.MLQuests.Objectives;
using Server.Mobiles;

namespace Server.Items
{
  public class ScrollofAlacrity : SpecialScroll
  {
    [Constructible]
    public ScrollofAlacrity(SkillName skill = SkillName.Alchemy) : base(skill, 0.0)
    {
      ItemID = 0x14EF;
      Hue = 0x4AB;
    }

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

    public override int LabelNumber => 1078604; // Scroll of Alacrity

    public override int Message =>
      1078602; /*Using a Scroll of Transcendence for a given skill will permanently increase your current
																*level in that skill by the amount of points displayed on the scroll.
																*As you may not gain skills beyond your maximum skill cap, any excess points will be lost.*/

    public override string DefaultTitle => "<basefont color=#FFFFFF>Scroll of Alacrity:</basefont>";

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

      list.Add(1071345, "{0} 15 Minutes", GetName()); // Skill: ~1_val~
    }

    public override bool CanUse(Mobile from)
    {
      if (!(base.CanUse(from) && from is PlayerMobile pm))
        return false;

      #region Mondain's Legacy
      MLQuestContext context = MLQuestSystem.GetContext(pm);

      if (context != null)
      {
        foreach (MLQuestInstance instance in context.QuestInstances)
        {
          foreach (BaseObjectiveInstance objective in instance.Objectives)
          {
            if (!objective.Expired && objective is GainSkillObjectiveInstance objectiveInstance &&
                objectiveInstance.Handles(Skill))
            {
              from.SendMessage("You are already under the effect of an enhanced skillgain quest.");
              return false;
            }
          }
        }
      }
      #endregion

      if (pm.AcceleratedStart > DateTime.UtcNow)
      {
        from.SendLocalizedMessage(1077951); // You are already under the effect of an accelerated skillgain scroll.
        return false;
      }

      return true;
    }

    public override void Use(Mobile from)
    {
      if (!(CanUse(from) && from is PlayerMobile pm))
        return;

      double tskill = from.Skills[Skill].Base;
      double tcap = from.Skills[Skill].Cap;

      if (tskill >= tcap || from.Skills[Skill].Lock != SkillLock.Up)
      {
        from.SendLocalizedMessage(
          1094935); /*You cannot increase this skill at this time. The skill may be locked or set to lower in your skill menu.
														*If you are at your total skill cap, you must use a Powerscroll to increase your current skill cap.*/
        return;
      }

      from.SendLocalizedMessage(
        1077956); // You are infused with intense energy. You are under the effects of an accelerated skillgain scroll.

      Effects.PlaySound(from.Location, from.Map, 0x1E9);
      Effects.SendTargetParticles(from, 0x373A, 35, 45, 0x00, 0x00, 9502, (EffectLayer)255, 0x100);

      pm.AcceleratedStart = DateTime.UtcNow + TimeSpan.FromMinutes(15);
      Timer.DelayCall(TimeSpan.FromMinutes(15), Expire_Callback, from);

      pm.AcceleratedSkill = Skill;

      Delete();
    }

    // TODO: Handle this upon deserialization. Create Dictionary and serialize Mobile/Timers?
    private static void Expire_Callback(Mobile m)
    {
      m.PlaySound(0x1F8);
      m.SendLocalizedMessage(
        1077957); // The intense energy dissipates. You are no longer under the effects of an accelerated skillgain scroll.
    }

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

      writer.Write(0); // version
    }

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

      int version = InheritsItem ? 0 : reader.ReadInt(); //Required for SpecialScroll insertion

      LootType = LootType.Cursed;
      Insured = false;
    }
  }
}