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

namespace Server.Items
{
  public class ScrollofTranscendence : SpecialScroll
  {
    [Constructible]
    public ScrollofTranscendence(SkillName skill = SkillName.Alchemy, double value = 0.0) : base(skill, value)
    {
      ItemID = 0x14EF;
      Hue = 0x490;
    }

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

    public override int LabelNumber => 1094934; // Scroll of Transcendence

    public override int Message =>
      1094933; /*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 Transcendence ({Value} Skill):</basefont>";

    public static ScrollofTranscendence CreateRandom(int min, int max)
    {
      SkillName skill = (SkillName)Utility.Random(SkillInfo.Table.Length);

      return new ScrollofTranscendence(skill, Utility.RandomMinMax(min, max) * 0.1);
    }

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

      if (Value == 1)
        list.Add(1076759, "{0}\t{1}.0 Skill Points", GetName(), Value);
      else
        list.Add(1076759, "{0}\t{1} Skill Points", GetName(), Value);
    }

    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))
        return;

      double tskill = from.Skills[Skill].Base; // value of skill without item bonuses etc
      double tcap = from.Skills[Skill].Cap; // maximum value permitted
      bool canGain = false;

      double newValue = Value;

      if (tskill + newValue > tcap)
        newValue = tcap - tskill;

      if (tskill < tcap && from.Skills[Skill].Lock == SkillLock.Up)
      {
        if (from.SkillsTotal + newValue * 10 > from.SkillsCap)
        {
          int ns = from.Skills.Length; // number of items in from.Skills[]

          for (int i = 0; i < ns; i++)
            // skill must point down and its value must be enough
            if (from.Skills[i].Lock == SkillLock.Down && from.Skills[i].Base >= newValue)
            {
              from.Skills[i].Base -= newValue;
              canGain = true;
              break;
            }
        }
        else
        {
          canGain = true;
        }
      }

      if (!canGain)
      {
        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(1049513,
        GetNameLocalized()); // You feel a surge of magic as the scroll enhances your ~1_type~!

      from.Skills[Skill].Base += newValue;

      Effects.PlaySound(from.Location, from.Map, 0x1F7);
      Effects.SendTargetParticles(from, 0x373A, 35, 45, 0x00, 0x00, 9502, (EffectLayer)255, 0x100);
      Effects.SendTargetParticles(from, 0x376A, 35, 45, 0x00, 0x00, 9502, (EffectLayer)255, 0x100);

      Delete();
    }

    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;

      if (Hue == 0x7E)
        Hue = 0x490;
    }
  }
}