added countdown

src/stopwatch.py

@@ -17,6 +17,7 @@ class stopwatch:
     enable_sound: bool = False
 
     def __init__(self, beep_at, enable_sound) -> None:
+        print('='*120)
         self.start_time = datetime.datetime.now().replace(microsecond=0)
         if enable_sound:
             print("Warning:\tonce the beep time is reached, a sound will play.")
@@ -27,25 +28,30 @@ class stopwatch:
             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
+            self.beep_at_time = datetime.datetime.now()
             print("Start time:\t%s" % self.start_time)
         print('='*120)
 
 
     def display(self) -> None:
         text2 = ""
+        text3 = ""
         while True:
             now = datetime.datetime.now().replace(microsecond=0)
             elapsed = (now - self.start_time)
             text0 = ("\rcurrent:\t%s" % now)
-            text1 = ("elapsed:\t%s" % elapsed)
+            text1 = ("elapsed: %s" % elapsed)
+            if self.beep_at > 0 and not self.has_beeped:
+                remaining = self.beep_at_time - now
+                text2 = ("remaining: %s" % remaining)
             if elapsed.seconds / 60 >= self.beep_at and not self.has_beeped and not self.beep_at == 0:
                 text0 += '\a'
-                text2 = "🔔Beep!🔔"
+                text3 = "🔔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.write('\r' + text0+"\t\t"+text1+"\t\t"+text2+"\t\t"+text3 + "\t")
             sys.stdout.flush()
             time.sleep(0.1)