Add Working

Author: alisharify

week-7/working/test_working.py

@@ -0,0 +1,16 @@
+import pytest
+import working
+
+def test_valid_time():
+    assert working.convert("9:00 AM to 5:00 PM") == "09:00 to 17:00"
+    assert working.convert("9:00 AM to 10:00 AM") == "09:00 to 10:00"
+
+def test_value_error():
+    with pytest.raises(ValueError):
+        working.convert('09:00 AM to 605:00 PM')
+        working.convert('05:00 AM 648:00 PM')
+
+    with pytest.raises(ValueError):
+        working.convert(" ")
+        working.convert(" to ")
+        working.convert("9:60 AM to 5:80 PM")

week-7/working/working.py

@@ -0,0 +1,63 @@
+import re
+import sys
+
+
+def main():
+    print(convert(input("Hours: ")))
+    
+
+def convert(s):
+    def is_valid_60_minute(m):
+        m = int(m)
+        return True if 59 >= m >= 0 else False
+
+    def is_valid_12_hour(h):
+        h = int(h)
+        return True if 12 >= h >= 1 else False
+
+    def convert_2_24h(flag, h, minute):
+        if not minute:
+            minute = 0
+        hour = int(hour)
+
+        if not is_valid_12_hour(hour):
+            raise ValueError
+        if not is_valid_60_minute(minute):
+            raise ValueError
+
+        if flag == "am":
+            if hour == 12:
+                hour = "00"
+            else:
+                hour = str(hour)
+                new_hour = str(hour)
+        if flag == "pm":
+            if hour == 12:
+                hour = "12"
+            else:
+                hour += 12
+                hour = str(hour)
+                new_hour = str(hour)
+
+        minute = str(minute)
+        new_hour = hour.zfill(2) # add 0 => 2 =>> 02
+        new_minute = minute.zfill(2) # add 0
+        return f"{new_hour}:{new_minute}"
+
+
+    regex = r"^([0-9]{1,2})(\:)?([0-9]{2,2})? (AM|PM)" + " TO " + "([0-9]{1,2})(\:)?([0-9]{1,2})? (AM|PM)$"
+    result = re.search(regex, s, flags=re.IGNORECASE)
+
+    if result:
+        hour1,colm1,minute1,flag1,hour2,colm2,minute2,flag2 = result.groups()
+        if not flag1 or not flag2 or not hour1 or not hour2:
+            raise ValueError
+        first_time = convert_2_24h(flag1, hour1, minute1)
+        second_time = convert_2_24h(flag2, hour2, minute2)
+        return f"{first_time} to {second_time}"
+    else:
+        raise ValueError
+
+
+if __name__ == "__main__":
+    main()