using System;
using Server.Engines.ConPVP;
using Server.Items;
using Server.Mobiles;
using Server.Targeting;

namespace Server.SkillHandlers
{
  public class Peacemaking
  {
    public static void Initialize()
    {
      SkillInfo.Table[(int)SkillName.Peacemaking].Callback = OnUse;
    }

    public static TimeSpan OnUse(Mobile m)
    {
      m.RevealingAction();

      BaseInstrument.PickInstrument(m, OnPickedInstrument);

      return TimeSpan.FromSeconds(1.0); // Cannot use another skill for 1 second
    }

    public static void OnPickedInstrument(Mobile from, BaseInstrument instrument)
    {
      from.RevealingAction();
      from.SendLocalizedMessage(1049525); // Whom do you wish to calm?
      from.Target = new InternalTarget(from, instrument);
      from.NextSkillTime = Core.TickCount + 21600000;
    }

    private class InternalTarget : Target
    {
      private BaseInstrument m_Instrument;
      private bool m_SetSkillTime = true;

      public InternalTarget(Mobile from, BaseInstrument instrument) : base(
        BaseInstrument.GetBardRange(from, SkillName.Peacemaking), false, TargetFlags.None)
      {
        m_Instrument = instrument;
      }

      protected override void OnTargetFinish(Mobile from)
      {
        if (m_SetSkillTime)
          from.NextSkillTime = Core.TickCount;
      }

      protected override void OnTarget(Mobile from, object targeted)
      {
        from.RevealingAction();

        if (!(targeted is Mobile targ))
        {
          from.SendLocalizedMessage(1049528); // You cannot calm that!
        }
        else if (from.Region.IsPartOf<SafeZone>())
        {
          from.SendMessage("You may not peacemake in this area.");
        }
        else if (targ.Region.IsPartOf<SafeZone>())
        {
          from.SendMessage("You may not peacemake there.");
        }
        else if (!m_Instrument.IsChildOf(from.Backpack))
        {
          from.SendLocalizedMessage(
            1062488); // The instrument you are trying to play is no longer in your backpack!
        }
        else
        {
          m_SetSkillTime = false;
          from.NextSkillTime = Core.TickCount + 10000;

          if (targeted == from)
          {
            // Standard mode : reset combatants for everyone in the area

            if (!BaseInstrument.CheckMusicianship(from))
            {
              from.SendLocalizedMessage(500612); // You play poorly, and there is no effect.
              m_Instrument.PlayInstrumentBadly(from);
              m_Instrument.ConsumeUse(from);
            }
            else if (!from.CheckSkill(SkillName.Peacemaking, 0.0, 120.0))
            {
              from.SendLocalizedMessage(500613); // You attempt to calm everyone, but fail.
              m_Instrument.PlayInstrumentBadly(from);
              m_Instrument.ConsumeUse(from);
            }
            else
            {
              from.NextSkillTime = Core.TickCount + 5000;
              m_Instrument.PlayInstrumentWell(from);
              m_Instrument.ConsumeUse(from);

              Map map = from.Map;

              if (map != null)
              {
                int range = BaseInstrument.GetBardRange(from, SkillName.Peacemaking);

                bool calmed = false;

                foreach (Mobile m in from.GetMobilesInRange(range))
                {
                  BaseCreature bc = m as BaseCreature;
                  if (bc?.Uncalmable == true || bc?.AreaPeaceImmune == true || m == from ||
                      !from.CanBeHarmful(m, false))
                    continue;

                  calmed = true;

                  m.SendLocalizedMessage(
                    500616); // You hear lovely music, and forget to continue battling!
                  m.Combatant = null;
                  m.Warmode = false;

                  if (bc?.BardPacified == false)
                    bc.Pacify(from, DateTime.UtcNow + TimeSpan.FromSeconds(1.0));
                }

                if (!calmed)
                  from.SendLocalizedMessage(
                    1049648); // You play hypnotic music, but there is nothing in range for you to calm.
                else
                  from.SendLocalizedMessage(500615); // You play your hypnotic music, stopping the battle.
              }
            }
          }
          else
          {
            // Target mode : pacify a single target for a longer duration
            BaseCreature bc = targ as BaseCreature;

            if (!from.CanBeHarmful(targ, false))
            {
              from.SendLocalizedMessage(1049528);
              m_SetSkillTime = true;
            }
            else if (bc?.Uncalmable == true)
            {
              from.SendLocalizedMessage(1049526); // You have no chance of calming that creature.
              m_SetSkillTime = true;
            }
            else if (bc?.BardPacified == true)
            {
              from.SendLocalizedMessage(1049527); // That creature is already being calmed.
              m_SetSkillTime = true;
            }
            else if (!BaseInstrument.CheckMusicianship(from))
            {
              from.SendLocalizedMessage(500612); // You play poorly, and there is no effect.
              from.NextSkillTime = Core.TickCount + 5000;
              m_Instrument.PlayInstrumentBadly(from);
              m_Instrument.ConsumeUse(from);
            }
            else
            {
              double diff = m_Instrument.GetDifficultyFor(targ) - 10.0;
              double music = from.Skills.Musicianship.Value;

              if (music > 100.0)
                diff -= (music - 100.0) * 0.5;

              if (!from.CheckTargetSkill(SkillName.Peacemaking, targ, diff - 25.0, diff + 25.0))
              {
                from.SendLocalizedMessage(1049531); // You attempt to calm your target, but fail.
                m_Instrument.PlayInstrumentBadly(from);
                m_Instrument.ConsumeUse(from);
              }
              else
              {
                m_Instrument.PlayInstrumentWell(from);
                m_Instrument.ConsumeUse(from);

                from.NextSkillTime = Core.TickCount + 5000;
                targ.Combatant = null;
                targ.Warmode = false;
                
                if (bc != null)
                {
                  from.SendLocalizedMessage(1049532); // You play hypnotic music, calming your target.

                  double seconds = 100 - diff / 1.5;

                  if (seconds > 120)
                    seconds = 120;
                  else if (seconds < 10)
                    seconds = 10;

                  bc.Pacify(from, DateTime.UtcNow + TimeSpan.FromSeconds(seconds));
                }
                else
                {
                  from.SendLocalizedMessage(1049532); // You play hypnotic music, calming your target.

                  targ.SendLocalizedMessage(
                    500616); // You hear lovely music, and forget to continue battling!
                }
              }
            }
          }
        }
      }
    }
  }
}