From cf1693548b0fe595319074a1549b984ce36f8742 Mon Sep 17 00:00:00 2001
From: Tobi-wan Kenobi <github@tobi-wan-kenobi.at>
Date: Sun, 4 Dec 2016 08:37:01 +0100
Subject: [PATCH] [engine] Add initial version of event loop engine

Re-add the engine that is responsible for tying together input, output,
etc.

see #23
---
 bumblebee-status     | 18 ++++++++++++++++++
 bumblebee/engine.py  | 25 +++++++++++++++++++++++++
 tests/test_engine.py | 13 +++++++++++++
 3 files changed, 56 insertions(+)
 mode change 100644 => 100755 bumblebee-status
 create mode 100644 bumblebee/engine.py
 create mode 100644 tests/test_engine.py

diff --git a/bumblebee-status b/bumblebee-status
old mode 100644
new mode 100755
index e69de29..b048a61
--- a/bumblebee-status
+++ b/bumblebee-status
@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+
+import sys
+import bumblebee.engine
+import bumblebee.config
+
+def main():
+    config = bumblebee.config.Config(sys.argv[1:])
+    engine = bumblebee.engine.Engine(
+        config=config
+    )
+
+    engine.run()
+
+if __name__ == "__main__":
+    main()
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
diff --git a/bumblebee/engine.py b/bumblebee/engine.py
new file mode 100644
index 0000000..f9996b6
--- /dev/null
+++ b/bumblebee/engine.py
@@ -0,0 +1,25 @@
+"""Core application engine"""
+
+class Engine(object):
+    """Engine for driving the application
+
+    This class connects input/output, instantiates all
+    required modules and drives the "event loop"
+    """
+    def __init__(self, config):
+        self._running = True
+
+    def running(self):
+        """Check whether the event loop is running"""
+        return self._running
+
+    def stop(self):
+        """Stop the event loop"""
+        self._running = False
+
+    def run(self):
+        """Start the event loop"""
+        while self.running():
+            pass
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
diff --git a/tests/test_engine.py b/tests/test_engine.py
new file mode 100644
index 0000000..0d81578
--- /dev/null
+++ b/tests/test_engine.py
@@ -0,0 +1,13 @@
+# pylint: disable=C0103,C0111
+import unittest
+
+from bumblebee.engine import Engine
+
+class TestEngine(unittest.TestCase):
+    def setUp(self):
+        self.engine = Engine(None)
+
+    def test_stop(self):
+        self.assertTrue(self.engine.running())
+        self.engine.stop()
+        self.assertFalse(self.engine.running())