Support 'play now' server selection

lib/application_helper.rb

@@ -42,5 +42,27 @@ module W3DHubLauncher
         parameters.join(" ")
       )
     end
+
+    # select "best" server to join
+    def self.play_now_server(app)
+      channel = MemCache[:applications].find { |appl| appl.id == app.id }&.channels&.find { |c| c.id == app.channel }
+      return nil unless channel
+
+      server_options = MemCache[:servers].select do |server|
+        server.game == app.id &&
+        server.channel == channel.server_channel &&
+        !server.password? &&
+        server.player_count < server.max_players
+      end.sort_by do |s|
+        [s.player_count, -s.ping]
+      end.reverse
+
+      # try to find server with lowest ping and matching app version
+      found_server = server_options.find { |s| s.version == app.version }
+      # try to find server with lowest ping and undefined version
+      found_server ||= server_options.find { |s| s.version == Worker::Api::GameServer::NO_OR_DEFAULT_VERSION }
+
+      found_server
+    end
   end
 end

lib/pages/games.rb

@@ -186,7 +186,15 @@ module W3DHubLauncher
 
           flow(width: 1.0, height: 60) do
             if application
-              button "JOIN", tip: "Join most populated or lowest ping server", fill: true, height: 1.0, background_nine_slice: NINE_SLICE_ROUNDED_LEFT, **CTA_BUTTON_THEME
+              button "JOIN", tip: "Join most populated or lowest ping server", fill: true, height: 1.0, background_nine_slice: NINE_SLICE_ROUNDED_LEFT, **CTA_BUTTON_THEME do |btn|
+                server = ApplicationHelper.play_now_server(application)
+
+                if server
+                  ApplicationHelper.join_server(application, server)
+                else
+                  puts "No server available."
+                end
+              end
               button safe_get_image("#{ROOT_PATH}/media/icons/singleplayer.png"), tip: "Single player", image_height: 1.0, background_nine_slice: NINE_SLICE_SQUARE, **CTA_BUTTON_THEME do
                 ApplicationHelper.run(application)
               end

lib/states/interface.rb

@@ -159,7 +159,9 @@ module W3DHubLauncher
       def populate_server_information(server)
         return unless @server_details_container.visible?
 
+        # FIXME: check server channel against application channel's `server_channel`
         application = MemCache[:settings].applications.find { |app| app.id == server.game && app.channel == server.channel }
+        # channel = MemCache[:applications].find { |appl| appl.id == application&.id }&.channels&.find { |c| c.id == application&.channel }
 
         @server_details_container.clear do
           tagline server.name, width: 1.0, text_wrap: :none, tip: server.name

lib/worker/api/game_server.rb

@@ -4,6 +4,7 @@ module W3DHubLauncher
       # Designed to work with cyberarm's Game Server Hub service data, may work with W3D Hub's service with degraded metadata.
       class GameServer
         BAD_OR_UNKNOWN_PING = 1_000_000
+        NO_OR_DEFAULT_VERSION = "838".freeze
 
         attr_reader :id, :game, :channel, :address, :port, :region,
                     :name, :password, :current_map, :player_count, :max_players,
@@ -45,8 +46,10 @@ module W3DHubLauncher
           end
 
           # Cyberarm GSH extras
-          @version = data["version"] || "838"
+          @version = data["version"] || NO_OR_DEFAULT_VERSION
           @next_map = data["status"]["nextmap"] || ""
+
+          @version = Gem::Version.new(@version) if @version.split(".").size == 4
         end
 
         # TODO: implement :)

lib/worker/api/settings.rb

@@ -78,7 +78,7 @@ module W3DHubLauncher
           SCHEMA = 0
 
           attr_reader :id, :channel
-          attr_accessor :version, :installation_path, :wine_prefix_path, :launch_command
+          attr_accessor :version, :installation_path, :wine_prefix_path, :launch_command, :timestamp
 
           def self.create(id:, channel:, version:, installation_path:, wine_prefix_path:, launch_command:, timestamp:)
             hash = {