refactor commands.py into multiple packages and modules

esque/cli/autocomplete.py

@@ -0,0 +1,31 @@
+from esque.cli.options import State
+from esque.controller.consumergroup_controller import ConsumerGroupController
+from esque.resources.broker import Broker
+
+
+def list_brokers(ctx, args, incomplete):
+    state = ctx.ensure_object(State)
+    all_broker_hosts_names = [f"{broker.host}:{broker.port}" for broker in Broker.get_all(state.cluster)]
+    return [broker for broker in all_broker_hosts_names if broker.startswith(incomplete)]
+
+
+def list_consumergroups(ctx, args, incomplete):
+    state = ctx.ensure_object(State)
+    return [
+        group
+        for group in ConsumerGroupController(state.cluster).list_consumer_groups()
+        if group.startswith(incomplete)
+    ]
+
+
+def list_contexts(ctx, args, incomplete):
+    state = ctx.ensure_object(State)
+    return [context for context in state.config.available_contexts if context.startswith(incomplete)]
+
+
+def list_topics(ctx, args, incomplete):
+    state = ctx.ensure_object(State)
+    cluster = state.cluster
+    return [
+        topic.name for topic in cluster.topic_controller.list_topics(search_string=incomplete, get_topic_objects=False)
+    ]