create aircox_streamer as separate application

aircox_streamer/serializers.py

@@ -0,0 +1,40 @@
+from rest_framework import serializers
+
+
+__all__ = ['RequestSerializer', 'StreamerSerializer', 'SourceSerializer',
+           'PlaylistSerializer', 'QueueSourceSerializer']
+# TODO: use models' serializers
+
+
+class BaseMetadataSerializer(serializers.Serializer):
+    rid = serializers.IntegerField()
+    air_time = serializers.DateTimeField()
+    uri = serializers.CharField()
+
+
+class RequestSerializer(serializers.Serializer):
+    title = serializers.CharField()
+    artist = serializers.CharField()
+
+
+class StreamerSerializer(serializers.Serializer):
+    station = serializers.CharField(source='station.title')
+
+
+class SourceSerializer(BaseMetadataSerializer):
+    id = serializers.CharField()
+    uri = serializers.CharField()
+    rid = serializers.IntegerField()
+    air_time = serializers.DateTimeField()
+    status = serializers.CharField()
+
+
+class PlaylistSerializer(SourceSerializer):
+    program = serializers.CharField(source='program.title')
+    playlist = serializers.ListField(child=serializers.CharField())
+
+
+class QueueSourceSerializer(SourceSerializer):
+    queue = serializers.ListField(child=RequestSerializer())
+
+