Random song from playlist

I can once again play random songs from the playlist.

libsaria/collection/__init__.py

@@ -47,15 +47,15 @@ def lib_get_cur_id():
 def plist_refresh():
 	return call("PLISTREFRESH")
 
-def choose_next():
-	global playlist
-	global cur_lib_id
-	if libsaria.prefs["random"] == True:
-		next = playlist.random()
-	else:
-		next = playlist.next_id(cur_lib_id)
-	if next != None:
-		return call("NEXT", play_id, next)
+#def choose_next():
+#	global playlist
+#	global cur_lib_id
+#	if libsaria.prefs["random"] == True:
+#		next = playlist.random()
+#	else:
+#		next = playlist.next_id(cur_lib_id)
+#	if next != None:
+#		return call("NEXT", play_id, next)
 
 def change_score():
 	prcnt = libsaria.audio.get_progress()

libsaria/collection/playlist.py

@@ -1,5 +1,7 @@
 # Bryan Schumaker (11/07/2010)
 
+import random as rand
+
 import libsaria
 from libsaria.collection import library
 call = libsaria.event.call
@@ -7,9 +9,12 @@ call = libsaria.event.call
 song_list = None
 song_set  = None
 
-filtered  = False
-visible   = None
-cur_index = -1
+filtered   = False
+visible    = None
+recent     = []
+recent_msg = "Skipping %s by %s because it has played recently"
+skip_msg   = "Skipping %s by %s because I don't think you like it"
+cur_index  = -1
 
 def add_id(id):
 	global song_list
@@ -59,6 +64,11 @@ def is_visible(id):
 		return id in visible
 	return True
 
+def num_visible():
+	if filtered == True:
+		return len(visible)
+	return len(song_list)
+
 def seq_next():
 	global cur_index
 	global song_list
@@ -67,7 +77,40 @@ def seq_next():
 		cur_index += 1
 	return song_list[cur_index]
 
-def next():
-	id = seq_next()
-	return call("NEXT", library.play_id, id)
+def rand_candidate(max):
+	index = rand.randint(0, max-1)
+	if filtered == False:
+		return song_list[index]
+	return list(visible)[index]
 
+def rand_next():
+	n = num_visible()
+	if n == 0:
+		return
+	get_attrs = library.get_attrs
+	for i in xrange(15):
+		id = rand_candidate(n)
+		(artist, title, score) = get_attrs(id, "artist", "title", "score")
+		if (artist, title) in recent:
+			print recent_msg % (artist, title)
+			continue
+		if score < 0:
+			do_play = rand.randint(0, 100)
+			if do_play < ((20 * score) + 100):
+				print skip_msg % (artist, title)
+				continue
+		recent.append((artist, title))
+		if len(recent) > 50:
+			recent.pop(0)
+		if i > 0:
+			print "Picking a song took %s iterations" % i
+		return id
+
+def next():
+	if libsaria.prefs["random"] == True:
+		id = rand_next()
+		print id, library.get_attrs(id, "filepath")
+	else:
+		id = seq_next()
+	if id != None:
+		return call("NEXT", library.play_id, id)