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""" |
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------------------------------------------------------- |
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Takes self hour, self day of month, and those of another |
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person. Outputs a string with the hour difference and |
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description of whether the other user is ahead or behind |
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self. |
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|
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Use: get_hr_diff(12, 13, 12, 5) |
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------------------------------------------------------- |
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Preconditions: |
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self_day - day of month of self (int) |
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other_day - day of month of other person (int) |
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self_hour - hour of day of self (int) |
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other_hour - hour of day of other (int) |
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Postconditions: |
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td_msg - the hour difference and ahead/behind (str) |
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------------------------------------------------------- |
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|
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""" |
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|
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def get_hr_diff(self_day, other_day, self_hour, other_hour): |
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|
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if self_day < 1 or other_day < 1 or self_day > 31 or other_day > 31 or self_hour < 0 or self_hour > 23 or other_hour < 0 or other_hour > 23: |
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return "Hour difference cannot be displayed" |
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|
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day_delta = abs(other_day-self_day) |
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|
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if day_delta > 2: # Month wraparound has occurred (up to 26 hrs diff) |
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|
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# Other is 1 or more days ahead |
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if other_day <= 2: |
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td_msg = str(other_hour+(other_day-1)*24+24-self_hour) + " hours ahead of you" |
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|
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# Should never happen |
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elif other_day > 2: |
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td_msg = "Hour difference cannot be displayed" |
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|
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# I am 1 or more days ahead |
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else: |
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td_msg = str(self_hour+(self_day-1)*24+24-other_hour) + " hours behind you" |
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|
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elif day_delta > 0: # Different days but no month wraparound (<= 26 hrs) |
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|
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if other_day > self_day: |
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td_msg = str(other_hour+(day_delta-1)*24+24-self_hour) + " hours ahead of you" |
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|
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else: |
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td_msg = str(self_hour+(day_delta-1)*24+24-other_hour) + " hours behind you" |
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|
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else: # If we get here, it must be the same day |
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|
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if other_hour > self_hour: |
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td_msg = str(other_hour-self_hour)+ " hours ahead of you" |
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|
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elif self_hour > other_hour: |
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td_msg = str(self_hour-other_hour)+ " hours behind you" |
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|
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else: # Hey buddy, we're in the same timezone! |
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td_msg = "Same time as you" |
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|
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return td_msg |
