added beeping and timeout notification

src/stopwatch.py

@@ -1,4 +1,7 @@
 #!/bin/env python3
+import beepy    # pip install beepy
+from multiprocessing import Process
+import argparse
 import time
 import datetime
 import sys
@@ -6,23 +9,55 @@ import time
 
 
 class stopwatch:
-    def __init__(self) -> None:
+
+    beep_at: int
+    beep_at_time: datetime.datetime
+    has_beeped: bool = False
+    start_time: datetime.datetime
+    enable_sound: bool = False
+
+    def __init__(self, beep_at, enable_sound) -> None:
         self.start_time = datetime.datetime.now().replace(microsecond=0)
+        if enable_sound:
+            print("Warning:\tonce the beep time is reached, a sound will play.")
+        self.enable_sound = enable_sound
+        if not beep_at <= 0:
+            self.beep_at = beep_at
+            self.beep_at_time = self.start_time + datetime.timedelta(minutes=beep_at)
+            print("Start time:\t%s\nWill beep at:\t%s\nBeeping Time:\t%sm" % (self.start_time, self.beep_at_time, beep_at))
+        else:
+            self.beep_at = 0
+            print("Start time:\t%s" % self.start_time)
+        print('='*120)
+
 
     def display(self) -> None:
-        print("started at:\t%s" % self.start_time)
+        text2 = ""
         while True:
             now = datetime.datetime.now().replace(microsecond=0)
             elapsed = (now - self.start_time)
             text0 = ("\rcurrent:\t%s" % now)
             text1 = ("elapsed:\t%s" % elapsed)
-            sys.stdout.write('\r' + str(text0+"\t\t"+text1) + "\t" * 3)
+            if elapsed.seconds / 60 >= self.beep_at and not self.has_beeped and not self.beep_at == 0:
+                text0 += '\a'
+                text2 = "🔔Beep!🔔"
+                self.has_beeped = True
+                if self.enable_sound:
+                    p = Process(target=beepy.beep, kwargs={"sound": "success"})
+                    p.start()
+            sys.stdout.write('\r' + str(text0+"\t\t"+text1+"\t\t"+text2) + "\t" * 3)
             sys.stdout.flush()
-            time.sleep(1)
+            time.sleep(0.1)
 
 def main():
+    parser = argparse.ArgumentParser(prog="stopwatch", description='Simple CLI stopwatch.')
+    parser.add_argument('-b', '--beep', metavar='N', type=float, nargs='+',
+                    help='beep after x minutes', default=[0])
+    parser.add_argument('-s', '--sound',
+                    action='store_true')
+    args = parser.parse_args()
     try:
-        timer = stopwatch()
+        timer = stopwatch(args.beep[0], enable_sound=args.sound)
         timer.display()
     except KeyboardInterrupt:
         pass