text: " tell.py: written by sklnd in July 2009"
  "       2010.01.25 - modified by Scaevolus"
  
  import time
  
  from util import hook, timesince
  
  
  def db_init(db):
      "check to see that our db has the tell table and return a dbection."
      db.execute("create table if not exists tell"
                 "(user_to, user_from, message, chan, time,"
                 "primary key(user_to, message))")
      db.commit()
  
      return db
  
  
  def get_tells(db, user_to):
      return db.execute("select user_from, message, time, chan from tell where"
                        " user_to=lower(?) order by time",
                        (user_to.lower(),)).fetchall()
  
  
  @hook.singlethread
  @hook.event('PRIVMSG')
  def tellinput(paraml, input=None, db=None):
      if 'showtells' in input.msg.lower():
          return
  
      db_init(db)
  
      tells = get_tells(db, input.nick)
  
      if tells:
          user_from, message, time, chan = tells[0]
          reltime = timesince.timesince(time)
  
          reply = "%s said %s ago in %s: %s" % (user_from, reltime, chan,
                                                message)
          if len(tells) > 1:
              reply += " (+%d more, .showtells to view)" % (len(tells) - 1)
  
          db.execute("delete from tell where user_to=lower(?) and message=?",
                     (input.nick, message))
          db.commit()
          input.pm(reply)
  
  
  @hook.command(autohelp=False)
  def showtells(inp, nick='', chan='', notice=None, db=None):
      ".showtells -- view all pending tell messages (sent in PM)."
  
      db_init(db)
  
      tells = get_tells(db, nick)
  
      if not tells:
          notice("You have no pending tells.")
          return
  
      for tell in tells:
          user_from, message, time, chan = tell
          past = timesince.timesince(time)
          notice("%s said %s ago in %s: %s" % (user_from, past, chan, message))
  
      db.execute("delete from tell where user_to=lower(?)",
                 (nick,))
      db.commit()
  
  
  @hook.command
  def tell(inp, nick='', chan='', db=None):
      ".tell <nick> <message> -- relay <message> to <nick> when <nick> is around"
  
      query = inp.split(' ', 1)
  
      if len(query) != 2:
          return tell.__doc__
  
      user_to = query[0].lower()
      message = query[1].strip()
      user_from = nick
  
      if chan.lower() == user_from.lower():
          chan = 'a pm'
  
      if user_to == user_from.lower():
  		return "No."
  
      db_init(db)
  
      if db.execute("select count() from tell where user_to=?",
                    (user_to,)).fetchone()[0] >= 15:
          return "That person has too many things queued."
  
      try:
          db.execute("insert into tell(user_to, user_from, message, chan,"
                     "time) values(?,?,?,?,?)", (user_to, user_from, message,
                                                 chan, time.time()))
          db.commit()
      except db.IntegrityError:
          return "Message has already been queued."
      return "I'll pass that along."
  