1 files changed, 99 insertions, 0 deletions
diff --git a/bot_backend.py b/bot_backend.py
new file mode 100644
index 0000000..6a2adfa
--- /dev/null
+++ b/bot_backend.py
@@ -0,0 +1,99 @@
+import liblo
+import urllib2
+
+# Known lights, terminal symbols
+lights_terminal = {}
+
+for i in range(1,5):
+    ident = '%02d' % i
+    lights_terminal[ident] = 'osc.udp://172.22.83.5:4243/dali/lamps/%s/bright' % ident
+
+# Production Rules/Aliases
+lights_production = {
+    u'lounge-stage':    [u'01'],
+    u'lounge-office':   [u'02'],
+    u'lounge-bar':      [u'03'],
+    u'lounge-clock':    [u'04'],
+    u'lounge-west':     [u'lounge-bar', u'lounge-clock'],
+    u'lounge-east':     [u'lounge-stage', u'lounge-office'],
+    u'lounge':          [u'lounge-east', u'lounge-west'],
+}
+
+class OSCMessage(object):
+    def __init__(self, url):
+        parsed = urllib2.urlparse.urlparse(url)
+        self.path = parsed.path
+        self.url = urllib2.urlparse.urlunparse((parsed.scheme, parsed.netloc, '', '', '', ''))
+
+        self.msg = liblo.Message(self.path)
+
+    def __getattr__(self, name):
+        return getattr(self.msg, name)
+
+    def send(self):
+        liblo.send(self.url, self.msg)
+
+def on_pubmsg(self, c, e):
+    message = e.arguments[0]
+
+    light_command_prefix = '!light'
+    if message.startswith(light_command_prefix):
+        nick = e.source.nick
+        on_light_command(self, nick, message[len(light_command_prefix) + 1:])
+
+def on_light_command(self, nick, commandline):
+    tokens = commandline.split(' ')
+    if len(tokens) < 1:
+        self.light_usage()
+        return
+
+    if tokens[0].lower() == 'set':
+        on_light_set(self, tokens[1:])
+    elif tokens[0].lower() == 'list':
+        on_light_list(self, tokens[1:])
+    else:
+        light_usage(self)
+
+def on_light_list(self, tokens):
+    self.connection.privmsg(self.channel,
+        "The following ids are currently known: %s" % ', '.join(sorted(lights_production.keys())))
+
+def on_light_set(self, tokens):
+    if len(tokens) != 2:
+        return False
+
+    lights = tokens[0].split(',')
+    for i in range(32):
+        for i in range(len(lights)):
+            light = lights[i]
+            if light in lights_terminal:
+                continue
+            if light not in lights_production:
+                self.connection.privmsg(self.channel, "Unknown Alias: '%s'" % light)
+                return
+            lights = lights[:i] + lights_production[light] + lights[i+1:]
+            break
+
+    status = tokens[1]
+    if status.lower() == 'on':
+        status = 255
+    elif status.lower() == 'off':
+        status = 0
+    else:
+        try:
+            status = int(status, 0)
+            if status not in range(256):
+                raise ValueError
+        except ValueError:
+            self.connection.privmsg(self.channel, "Invalid light value: '%s'" % status)
+            return
+
+    for light in lights:
+        msg = OSCMessage(lights_terminal[light])
+        msg.add(status)
+        msg.send()
+    self.connection.privmsg(self.channel, "Light command processed.")
+
+def light_usage(self):
+    self.connection.privmsg(self.channel, "Usage: !light list")
+    self.connection.privmsg(self.channel, "Usage: !light set <id>[,...] <on|off|0..255>")