added eyewatch script

eyewatch.py

@@ -0,0 +1,69 @@
+#!/usr/bin/env python3
+from argparse import ArgumentParser
+from random import randint
+from sys import argv
+from time import sleep
+import gi
+gi.require_version('Notify', '0.7')
+from gi.repository import Notify
+
+URGENCY = 0
+TITLE = 'EYE WATCH'
+MESSAGES = (
+    'do some blinking',
+    'roll your eyes a few times',
+    'look at a distant object',
+    'close your eyes tightly for a few seconds',
+    'move your eyes sideways'
+)
+
+def parse_args(sys_args):
+    desc = 'display a reminder to take a short break and do some eye practice'
+    p = ArgumentParser(description=desc)
+    p.add_argument(
+        '-t',
+        '--timer',
+        default='300',
+        help='run in foreground, showing notification every TIMER seconds (this is default, with TIMER = 300)'
+    )
+    p.add_argument(
+        '-o',
+        '--once',
+        action='store_true',
+        default=False,
+        help='show notification once and exit'
+    )
+    p.add_argument(
+        '-i',
+        '--icon',
+        help='show ICON alongside the message'
+    )
+    return p.parse_args(sys_args)
+
+def get_random_message(message_list):
+    list_len = len(message_list)
+    random_value = randint(0, list_len - 1)
+    return message_list[random_value]
+
+def show_notification(notification, icon):
+    text = get_random_message(MESSAGES)
+    if icon is not None:
+        notification.update(TITLE, text, icon)
+    else:
+        notification.update(TITLE, text)
+    notification.set_urgency(URGENCY)
+    notification.show()
+
+if __name__ == '__main__':
+    args = parse_args(argv[1:])
+    Notify.init(argv[0])
+    notification = Notify.Notification.new(summary=TITLE)
+
+    if args.once == True:
+        show_notification(notification, args.icon)
+    else:
+        while True:
+            show_notification(notification, args.icon)
+            sleep(int(args.timer))
+
+    Notify.uninit()