defmodule SWeb.HTTPRouter do
use Plug.Router
use Plug.ErrorHandler
plug Plug.Parsers, parsers: [:urlencoded, :multipart]
plug :match
plug :dispatch
get "/" do
main_page(conn)
end
post "/" do
if Map.has_key?(conn.params, "msg") do
SApp.Chat.send(conn.params["msg"])
end
if Map.has_key?(conn.params, "nick") do
Shard.Identity.set_nickname(conn.params["nick"])
end
if Map.has_key?(conn.params, "peer") do
[ipstr, portstr] = String.split(conn.params["peer"], ":")
{:ok, ip} = :inet.parse_address (to_charlist ipstr)
{port, _} = Integer.parse portstr
SNet.Manager.add_peer(ip, port)
end
main_page(conn)
end
match _ do
send_resp(conn, 404, "Oops!")
end
def main_page(conn) do
{:ok, messages, _} = GenServer.call(SApp.Chat.Log, {:read, nil, 42})
msgtxt = messages
|> Enum.map(fn {ts, nick, msg} -> "#{ts |> DateTime.from_unix! |> DateTime.to_iso8601} <#{nick}> #{msg}\n" end)
peerlist = SNet.ConnSupervisor
|> DynamicSupervisor.which_children
|> Enum.map(fn {_, pid, _, _} -> "#{GenServer.call(pid, :get_host_str)}\n" end)
conn
|> put_resp_content_type("text/html")
|> send_resp(200, "<pre>#{msgtxt}</pre>" <>
"<form method=POST><input type=text name=msg /><input type=submit value=send /></form>" <>
"<form method=POST><input type=text name=nick value=\"#{Shard.Identity.get_nickname}\" /><input type=submit value=\"change nick\" /></form>" <>
"<hr/><pre>#{peerlist}</pre>" <>
"<form method=POST><input type=text name=peer /><input type=submit value=\"add peer\" /></form>")
end
end
