allow to specify MPD server host and port

src/crympd.cr

@@ -10,7 +10,22 @@ end
 
 SOCKETS = [] of HTTP::WebSocket
 
-mpd_client = MPDClient.new(SOCKETS)
+mpd_host = "localhost"
+mpd_port = 6600
+
+Kemal.config do |config|
+  config.extra_options do |parser|
+    parser.on("--mpd_host MPD_HOST", "MPD Host") do |opt|
+      mpd_host = opt
+    end
+
+    parser.on("--mpd_port MPD_PORT", "MPD Port") do |opt|
+      mpd_port = opt.to_i? || mpd_port
+    end
+  end
+end
+
+mpd_client = MPDClient.new(SOCKETS, mpd_host, mpd_port)
 
 before_get ["/current_song", "/status", "/stats", "/playlist"] do |env|
   env.response.content_type = "application/json"
@@ -90,7 +105,6 @@ get "/albumart" do |env|
       send_file env, binary.to_slice, data["type"]
     end
   else
-
     send_file env, Filesystem.get("images/record_placeholder.jpg").gets_to_end.to_slice, "image/jpeg"
   end
 rescue

src/mpd_client.cr

@@ -1,11 +1,11 @@
 class MPDClient
   getter client
 
-  def initialize(@sockets : Array(HTTP::WebSocket))
+  def initialize(@sockets : Array(HTTP::WebSocket), mpd_host : String, mpd_port : Int32)
     MPD::Log.level = :error
     MPD::Log.backend = ::Log::IOBackend.new
 
-    @client = MPD::Client.new("localhost", 6600, with_callbacks: true)
+    @client = MPD::Client.new(mpd_host, mpd_port, with_callbacks: true)
     # @client = MPD::Client.new("/run/mpd/socket", with_callbacks: true)
     @client.callbacks_timeout = 100.milliseconds