using System;
using System.Collections.Generic;

namespace Server.Commands.Generic
{
  public class GlobalCommandImplementor : BaseCommandImplementor
  {
    public GlobalCommandImplementor()
    {
      Accessors = new[] { "Global" };
      SupportRequirement = CommandSupport.Global;
      SupportsConditionals = true;
      AccessLevel = AccessLevel.Administrator;
      Usage = "Global <command> [condition]";
      Description =
        "Invokes the command on all appropriate objects in the world. Optional condition arguments can further restrict the set of objects.";
    }

    public override void Compile(Mobile from, BaseCommand command, ref string[] args, ref object obj)
    {
      try
      {
        Extensions ext = Extensions.Parse(from, ref args);

        if (!CheckObjectTypes(from, command, ext, out bool items, out bool mobiles))
          return;

        List<object> list = new List<object>();

        if (items)
          foreach (Item item in World.Items.Values)
            if (ext.IsValid(item))
              list.Add(item);

        if (mobiles)
          foreach (Mobile mob in World.Mobiles.Values)
            if (ext.IsValid(mob))
              list.Add(mob);

        ext.Filter(list);

        obj = list;
      }
      catch (Exception ex)
      {
        from.SendMessage(ex.Message);
      }
    }
  }
}