Minor optimizations

docker-compose.yml

@@ -39,6 +39,7 @@ services:
     environment:
       POSTGRES_USER: ${CODEBATTLE_DB_USERNAME}
       POSTGRES_PASSWORD: ${CODEBATTLE_DB_PASSWORD}
+    command: postgres -c 'max_connections=1000'
     volumes:
       - pg_data:/var/lib/postgresql/data
 

services/app/apps/codebattle/lib/codebattle/pub_sub/events.ex

@@ -262,6 +262,7 @@ defmodule Codebattle.PubSub.Events do
         event: "game:finished",
         payload: %{
           game_id: game.id,
+          tournament_id: game.tournament_id,
           game_state: game.state,
           game: %{
             id: Game.Helpers.get_game_id(game),

services/app/apps/codebattle/lib/codebattle/users_rank_update_server.ex

@@ -20,7 +20,6 @@ defmodule Codebattle.UsersRankUpdateServer do
   def init(_) do
     Process.send_after(self(), :work, @timeout)
 
-    Codebattle.PubSub.subscribe("main")
     Codebattle.PubSub.subscribe("games")
     Logger.debug("Start UsersRankServer")
     {:ok, true}
@@ -37,7 +36,7 @@ defmodule Codebattle.UsersRankUpdateServer do
     {:noreply, state}
   end
 
-  def handle_info(%{event: "game:finished"}, state) do
+  def handle_info(%{event: "game:finished", payload: %{tournament_id: nil}}, state) do
     do_work()
     {:noreply, state}
   end

services/app/apps/codebattle/lib/codebattle_web/channels/tournament_channel.ex

@@ -189,8 +189,18 @@ defmodule CodebattleWeb.TournamentChannel do
 
     push(socket, "tournament:update", %{
       tournament:
-        Map.drop(payload.tournament, [:players, :matches, :players_table, :matches_table]),
-      players: Helpers.get_players(payload.tournament),
+        Map.drop(payload.tournament, [
+       :__struct__,
+       :__meta__,
+       :creator,
+        :players,
+        :matches,
+        :players_table,
+        :matches_table,
+        :round_tasks,
+        :played_pair_ids
+        ]),
+      players: Helpers.get_top_players(payload.tournament),
       matches: matches
     })
 
@@ -250,7 +260,7 @@ defmodule CodebattleWeb.TournamentChannel do
 
     Codebattle.PubSub.subscribe("tournament:#{tournament.id}:player:#{current_user.id}")
 
-    if Codebattle.User.admin?(current_user) do
+    if Helpers.can_moderate?(tournament, current_user) do
       Codebattle.PubSub.subscribe("tournament:#{tournament.id}")
     else
       Codebattle.PubSub.subscribe("tournament:#{tournament.id}:common")
@@ -262,15 +272,16 @@ defmodule CodebattleWeb.TournamentChannel do
   defp get_tournament_join_payload(%{type: type} = tournament, socket)
        when type in ["swiss", "ladder", "stairway"] do
     current_user = socket.assigns.current_user
-    matches = Helpers.get_matches_by_players(tournament, [current_user.id])
 
-    players =
-      if Codebattle.User.admin?(current_user) do
-        [Helpers.get_player(tournament, current_user.id)] ++
-          Helpers.get_paginated_players(tournament, 0, 30)
+    {matches, players} =
+      if Helpers.can_moderate?(tournament, current_user) do
+        {Helpers.get_matches(tournament),
+         [Helpers.get_player(tournament, current_user.id)] ++
+           Helpers.get_paginated_players(tournament, 0, 30)}
       else
-        [Helpers.get_player(tournament, current_user.id)] ++
-          Helpers.get_top_players(tournament)
+        {Helpers.get_matches_by_players(tournament, [current_user.id]),
+         [Helpers.get_player(tournament, current_user.id)] ++
+           Helpers.get_top_players(tournament)}
       end
 
     %{

services/app/apps/codebattle/mix.exs

@@ -71,6 +71,7 @@ defmodule Codebattle.MixProject do
       {:exfake, "~> 1.0.0"},
       {:fun_with_flags, "~> 1.10.1"},
       {:fun_with_flags_ui, "~> 0.8"},
+      {:recon, "~> 2.5"},
 
       # dev_and_test
       {:credo, "~> 1.6", only: [:dev, :test], runtime: false},

services/app/config/config.exs

@@ -9,6 +9,13 @@ config :codebattle, ecto_repos: [Codebattle.Repo]
 
 # Configures the endpoint
 config :codebattle, CodebattleWeb.Endpoint,
+  http: [
+    port: System.get_env("CODEBATTLE_PORT", "4000"),
+    transport_options: [
+      max_connections: 30000,
+      num_acceptors: 500
+    ]
+  ],
   url: [host: "localhost"],
   secret_key_base: "zQ3/vT3oIVM94qXO7IgWeAqbLSAyGA9em6fdBw7OdbDnbeotEkWYANrjJWYNWpd/",
   render_errors: [view: CodebattleWeb.ErrorView, accepts: ~w(html json), layout: false],

services/app/config/prod.exs

@@ -1,8 +1,18 @@
 import Config
 
 config :codebattle, CodebattleWeb.Endpoint,
-  http: [port: System.get_env("CODEBATTLE_PORT", "4000")],
-  url: [scheme: "https", host: "codebattle.hexlet.io", port: 443],
+  http: [
+    port: System.get_env("CODEBATTLE_PORT", "4000"),
+    transport_options: [
+      max_connections: 30000,
+      num_acceptors: 500
+    ]
+  ],
+  url: [
+    scheme: "https",
+    host: System.get_env("CODEBATTLE_HOST", "codebattle.hexlet.io"),
+    port: 443
+  ],
   cache_static_manifest: "priv/static/cache_manifest.json",
   server: true,
   root: ".",