Add support for non-interactive usage of huec

For example:

  huec scene 1
  huec off 2

bin/huec

@@ -19,6 +19,10 @@ require "rainbow"
 
 include Huey
 
+def msg(str="")
+  puts(str) if @interactive
+end
+
 def status_line(blb)
   mode = []
   if blb.reachable
@@ -62,14 +66,14 @@ end
 
 def lights
   Huey::Bulb.all.each do |blb|
-    puts status_line(blb)
+    msg status_line(blb)
   end
   true
 end
 
 def groups
   Huey::Group.all.each do |grp|
-    puts "%2d: %s (%s)" % [grp.id, grp.name, grp.bulbs.map(&:id).join(', ')]
+    msg "%2d: %s (%s)" % [grp.id, grp.name, grp.bulbs.map(&:id).join(', ')]
   end
   true
 end
@@ -77,7 +81,7 @@ end
 def events
   events_cfg = File.join(@options[:config_dir], "events.yml")
   Huey::Event.import(events_cfg).each_with_index do |ev, idx|
-    puts "%2d: %s" % [idx, ev.name]
+    msg "%2d: %s" % [idx, ev.name]
   end
   true
 end
@@ -86,7 +90,7 @@ def scenes
   @scenes = {}
   scenes_cfg = File.join(@options[:config_dir], "scenes.yml")
   YAML.load_file(scenes_cfg).each_with_index do |(name, entry), idx|
-    puts "%2d: %s" % [idx, name]
+    msg "%2d: %s" % [idx, name]
     @scenes[name] = entry.map do |ev_options|
       # Keys should be symbols
       options = ev_options.inject({}) { |opts, (k, v)| opts[k.to_sym] = v; opts }
@@ -101,7 +105,7 @@ end
 def refresh!
   Huey::Bulb.all.each do |blb|
     blb.reload
-    puts status_line(blb)
+    msg status_line(blb)
   end
   true
 end
@@ -109,7 +113,7 @@ end
 def get(*names_or_ids)
   names_or_ids.map do |name_or_id|
     blb = Huey::Bulb.find(name_or_id)
-    puts status_line(blb)
+    msg status_line(blb)
     true
   end
 end
@@ -124,13 +128,13 @@ rescue Huey::Errors::BulbOff
   blb.update(on: true)
   retry
 rescue Huey::Errors::Error => e
-  puts "Error: #{e.message}"
+  msg "Error: #{e.message}"
 end
 
 def getgrp(*names_or_ids)
   names_or_ids.map do |name_or_id|
     Huey::Group.find(name_or_id).each do |blb|
-      puts status_line(blb)
+      msg status_line(blb)
     end
     true
   end
@@ -179,7 +183,7 @@ def on(*names_or_ids)
 end
 
 def commands
-  puts <<EOT
+  msg <<EOT
 Lights
   lights                          shows the list of all lights
                                     (ID, name and state)
@@ -240,34 +244,45 @@ rescue OptionParser::InvalidOption => e
   abort opt_parser.to_s
 end
 
-puts "Starting huec #{Hued::VERSION}..."
+@interactive = ARGV.empty?
+
+msg "Starting huec #{Hued::VERSION}..."
 bridge_cfg = YAML.load_file(File.join(@options[:config_dir], "bridge.yml"))
 Huey.configure do |cfg|
   cfg.hue_ip = bridge_cfg["ip"]
   cfg.uuid = bridge_cfg["user"]
 end
 Huey.logger.level = @options[:hue_debug] ? Logger::DEBUG : Logger::FATAL
-puts "Configured bridge connection"
+msg "Configured bridge connection"
 
-puts "Discovering lights..."
+msg "Discovering lights..."
 lights
-puts
+msg
 
-puts "Discovering groups..."
+msg "Discovering groups..."
 groups
-puts
+msg
 
-puts "Loading events..."
+msg "Loading events..."
 events
-puts
+msg
 
-puts "Loading scenes..."
+msg "Loading scenes..."
 scenes
-puts
+msg
 
-puts "All done!"
-puts "Use 'commands' to see a list of additional commands to pry's."
-puts
+msg "Loading sensors..."
+sensors
+msg
+
+msg "All done!"
+msg "Use 'commands' to see a list of additional commands to pry's."
+msg
 @prompt_stamp = Time.now
-Pry.config.prompt = proc { "#{prompt_status}> " }
-binding.pry(quiet: true)
+
+if @interactive
+  Pry.config.prompt = proc { "#{prompt_status}> " }
+  binding.pry(quiet: true)
+else
+  eval ARGV.join(" ")
+end