Merge: Basename fix
[nit.git] / lib / mpd.nit
index 9383934..727ac60 100644 (file)
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# Client for a MPD server
+# Music Player Daemon client library
 module mpd
 
 import socket
 
 # Connection to a MPD server
 class MPDConnection
-       var socket: nullable Socket = null
 
+       # Socket connection to server.
+       var socket: nullable TCPStream = null
+
+       # Server hostname.
        var host: String
+
+       # Server port.
        var port: Int
+
+       # Server password.
        var password: nullable String
 
+       # Last occured error.
        var error: nullable String = null
 
        # Connect to the MPD server
        fun connect
        do
-               var p: nullable Socket = null
+               var p: nullable TCPStream = null
 
-               p = new Socket.stream_with_host(host, port)
-               p.connect
+               p = new TCPStream.connect(host, port)
+               assert p.connected
 
                sys.nanosleep(0,5000)
 
-               var rep = p.read
+               var rep = p.read(1024)
                assert not rep.is_empty
                if not rep.has_prefix("OK") then
                        print "MPD responded {rep}"
@@ -61,7 +69,7 @@ class MPDConnection
 
                socket.write(msg)
                sys.nanosleep(0,5000)
-               var rep = socket.read
+               var rep = socket.read(1024)
                if not rep.has_prefix("OK") then
                        print "Error: MPD responded {rep}"
                        socket.close
@@ -82,12 +90,12 @@ class MPDConnection
 
                # get current status
                socket.write("status\n")
-               var rep = socket.read
+               var rep = socket.read(1024)
                for l in rep.split_with("\n") do
                        var words = l.split_with(" ")
                        if words.length > 1 then
                                var key = words[0].to_lower
-                               var first_space = l.index_of(' ')
+                               var first_space = l.chars.index_of(' ')
                                var rest = l.substring_from(first_space+1)
                                if  key == "volume:" then
                                        volume = rest.to_i
@@ -131,6 +139,7 @@ class MPDConnection
                error = "Cannot get volume"
        end
 
+       # Set MPD server volume.
        fun volume=(vol: Int) do write_and_check("setvol {vol}\n")
 
        # Pause music playing on the MPD server
@@ -153,12 +162,12 @@ class MPDConnection
                var time: nullable Int = null
 
                socket.write("currentsong\n")
-               var rep = socket.read
+               var rep = socket.read(1024)
                for l in rep.split_with("\n") do
                        var words = l.split_with(" ")
                        if words.length > 1 then
                                var key = words[0].to_lower
-                               var first_space = l.index_of(' ')
+                               var first_space = l.chars.index_of(' ')
                                var rest = l.substring_from(first_space+1)
                                if key == "album:" then
                                        album = rest
@@ -180,6 +189,7 @@ class MPDConnection
                end
        end
 
+       # Load playlist named `name`.
        fun load_playlist(name: String)
        do
                write_and_check "load \"{name}\""
@@ -188,23 +198,44 @@ end
 
 # MPD song info
 class SongInfo
+       # Song album.
        var album: String
+
+       # Song artist.
        var artist: String
+
+       # Song title.
        var title: String
+
+       # Song total duration.
        var time: Int
 end
 
 # MPD server status
 class ServerStatus
+
+       # MPD server volume.
        var volume: nullable Int
 
+       # Playback state (play/stop/pause).
        var state: String
+
+       # Is MPD server playing?
        fun playing: Bool do return state == "play"
+
+       # Is MPD server stopped?
        fun stopped: Bool do return state == "stop"
 
+       # Time elapsed within the current song.
        var elapsed: nullable Int
+
+       # TODO comment
        var time_at: nullable Int
+
+       # Total time of the current song.
        var time_total: nullable Int
+
+       # Get the cursor position on the song duration.
        fun time_ratio: nullable Float do
                if time_at == null or time_total == null then return null
                return time_at.to_f / time_total.to_f