open! Import
include Router_types

type t = router

let make () =
  { users = Hashtbl.create 4096;
    channels = Hashtbl.create 4096 }

let find_user t nick =
  Hashtbl.find t.users (string_ci nick)

let find_chan t name =
  Hashtbl.find t.channels (string_ci name)

let relay ~(from : user) (msg : Irc.Msg.t) tgts =
  let msg =
    if msg.prefix = No_prefix then
      { msg with prefix = User.prefix from }
    else msg
  in
  let bcc u = Outbox.Bcc.add u.outbox in
  let bcc_not_self u = if u != from then bcc u in
  let bcc_channel c = List.iter bcc_not_self (Chan.members c) in
  List.iter
    (function
      | `to_self -> bcc from
      | `to_user tgt -> bcc tgt
      | `to_chan tgt -> bcc_channel tgt
      | `to_interested -> bcc from; List.iter bcc_channel (User.channels from))
    tgts;
  Outbox.Bcc.send_all msg