add bell sound! via sox

pom

@@ -1,9 +1,10 @@
 #! /usr/bin/env lua
+-- requires sox to play bell sound
 
 local alt_getopt = require 'alt_getopt'
 local term = require 'term'
 
-local times = 1
+local times = 4
 local nb = false -- "no break"
 local long_opts = {
   help = "h",
@@ -19,6 +20,7 @@ local tic = 1
 local endTime = startTime+10 --10 seconds
 local pomodoro = 25*60
 local breaktime = 5*60
+local longbreak = 20*60
 
 local i
 
@@ -76,6 +78,13 @@ function _process_args()
   end
 end
 
+function bell()
+
+  --Play a bell sound if we have sox installed, via the shell
+  os.execute("play -n synth 2 sin 960 fade l 0 1 0.9")
+
+end
+
 function toMin(seconds)
   --rounding up to the nearest minute
   return math.ceil(seconds/60)
@@ -115,6 +124,7 @@ function _pomodoro()
 end
 
 function _break()
+
   print("Starting 5 minute break")
 
   i = breaktime
@@ -128,6 +138,20 @@ function _break()
 
 end
 
+function _longbreak()
+ 
+  print("Starting 20 minute break")
+
+  i = longbreak
+
+  repeat
+
+    wait()
+    term.cursor.group(1)
+
+  until i<= 0
+end
+
 ----------------- start ----------------
 
 _process_args()
@@ -135,10 +159,14 @@ _process_args()
 for poms = 1,times 
 do
   _pomodoro()
+  bell()
 
-  if not nb then
+  if poms==4 and not nb then
+    _longbreak()
+  elseif poms~=4 and not nb then
     _break()
   end
+  bell()
 
 end
-print(times .. " pomodoros completed")
+print(times .. " pomodoros completed.")