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Groundwork for potentially better time descriptor management
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Krateng
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170
malojatime.py
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170
malojatime.py
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import datetime
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from calendar import monthrange
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# This is meant to be a time object that is aware of its own precision
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# now I know what you're saying
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# "This is total overengineering, Jimmy!"
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# "Just convert all user input into timestamps right at the entry into the database and only work with those"
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# "You can get the range descriptions right at the start as well or even generate them from timestamps with a simple comparison"
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# and you are absolutely correct
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# but my name isn't Jimmy
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# so we're doing objects
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class Time():
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precision = 0
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# 0 unused, no information at all, embrace eternity
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# 1 year
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# 2 month
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# 3 day
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# 4 specified by exact timestamp
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def __init__(self,*time):
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# time can be a int (timestamp), list or string (/-delimited list)
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if len(time) == 1:
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time = time[0] #otherwise we will already have a tuple and we can deal with that
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if isinstance(time,int) and time < 10000: time = [time] # if we have a low number, it's not a timestamp, but a year
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if isinstance(time,str):
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time = time.split("/")
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if isinstance(time,list) or isinstance(time,tuple):
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time = [int(x) for x in time][:3]
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self.precision = len(time)
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if len(time) > 0: self.YEAR = time[0]
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if len(time) > 1: self.MONTH = time[1]
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if len(time) > 2: self.DAY = time[2]
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elif isinstance(time,int):
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self.precision = 4
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self.TIMESTAMP = time
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dt = datetime.datetime.utcfromtimestamp(time)
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self.YEAR, self.MONTH, self.DAY = dt.year, dt.month, dt.day
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def _array(self):
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if self.precision == 4:
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timeobject = datetime.datetime.utcfromtimestamp(self.TIMESTAMP)
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return [timeobject.year,timeobject.month,timeobject.day]
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if self.precision == 3: return [self.YEAR,self.MONTH,self.DAY]
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if self.precision == 2: return [self.YEAR,self.MONTH]
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if self.precision == 1: return [self.YEAR]
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def get(self):
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if self.precision == 4: return self.TIMESTAMP
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if self.precision == 3: return [self.YEAR,self.MONTH,self.DAY]
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if self.precision == 2: return [self.YEAR,self.MONTH]
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if self.precision == 1: return [self.YEAR]
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def getStartTimestamp(self):
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if self.precision == 4: return self.TIMESTAMP
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else:
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YEAR = self.YEAR if self.precision > 0 else 1970
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MONTH = self.MONTH if self.precision > 1 else 1
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DAY = self.DAY if self.precision > 2 else 1
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return int(datetime.datetime(YEAR,MONTH,DAY,tzinfo=datetime.timezone.utc).timestamp())
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def getEndTimestamp(self):
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if self.precision == 4: return self.TIMESTAMP
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else: return self.getNext().getStartTimestamp()-1
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# get next time of the same precision, e.g. next month if month of this time was defined (even if it's 1 or 12)
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def getNext(self,obj=True):
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if self.precision == 4: result = self.TIMESTAMP + 1
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else: result = _getNext(self._array())
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if obj: return Time(result)
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else: return result
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def pad(self,precision=3):
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arrayA, arrayB = self._array(), self._array()
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if self.precision < min(2,precision):
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arrayA.append(1)
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arrayB.append(12)
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if self.precision+1 < min(3,precision):
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arrayA.append(1)
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arrayB.append(monthrange(*arrayB)[1])
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return (arrayA,arrayB)
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def describe(self,short=False):
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if self.precision == 4:
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if short:
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now = datetime.datetime.now(tz=datetime.timezone.utc)
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difference = int(now.timestamp() - self.TIMESTAMP)
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if difference < 10: return "just now"
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if difference < 60: return str(difference) + " seconds ago"
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difference = int(difference/60)
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if difference < 60: return str(difference) + " minutes ago" if difference>1 else str(difference) + " minute ago"
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difference = int(difference/60)
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if difference < 24: return str(difference) + " hours ago" if difference>1 else str(difference) + " hour ago"
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difference = int(difference/24)
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timeobject = datetime.datetime.utcfromtimestamp(self.TIMESTAMP)
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if difference < 5: return timeobject.strftime("%A")
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if difference < 31: return str(difference) + " days ago" if difference>1 else str(difference) + " day ago"
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#if difference < 300 and tim.year == now.year: return tim.strftime("%B")
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#if difference < 300: return tim.strftime("%B %Y")
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return timeobject.strftime("%d. %B %Y")
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else:
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timeobject = datetime.datetime.utcfromtimestamp(self.TIMESTAMP)
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return tim.strftime("%d. %b %Y %I:%M %p")
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else:
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YEAR = self.YEAR if self.precision > 0 else 2022
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MONTH = self.MONTH if self.precision > 1 else 5 #else numbers dont matter, just needed to create the datetime object
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DAY = self.DAY if self.precision > 2 else 4
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timeobject = datetime.datetime(YEAR,MONTH,DAY,tzinfo=datetime.timezone.utc)
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if self.precision == 3: return timeobject.strftime("%d. %B %Y")
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if self.precision == 2: return timeobject.strftime("%B %Y")
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if self.precision == 1: return timeobject.strftime("%Y")
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if self.precision == 0: return "Embrace Eternity"
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def getRange(timeA,timeB):
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return (timeA.getStartTimestamp(),timeB.getEndTimestamp())
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def getRangeDesc(timeA,timeB):
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aA, aB = timeA.get(), timeB.get()
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if len(aA) != len(aB):
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prec = max(len(aA),len(aB))
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aA, aB = timeA.pad(prec)[0], timeB.pad(prec)[1]
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if aA == aB:
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return Time(aA).describe()
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if aA[:-1] == aB[:-1]:
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return " ".join(Time(aA).describe().split(" ")[:-1]) + " to " + Time(aB).describe() #what
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def _getNext(time,unit="auto",step=1):
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result = time[:]
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if unit == "auto":
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# see how long the list is, increment by the last specified unit
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unit = [None,"year","month","day"][len(time)]
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if unit == "year":
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result[0] += step
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return result
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elif unit == "month":
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result[1] += step
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while result[1] > 12:
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result[1] -= 12
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result[0] += 1
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while result[1] < 1:
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result[1] += 12
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result[0] -= 1
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return result
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elif unit == "day":
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dt = datetime.datetime(time[0],time[1],time[2])
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d = datetime.timedelta(days=step)
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newdate = dt + d
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return [newdate.year,newdate.month,newdate.day]
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#eugh
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elif unit == "week":
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return getNext(time,"day",step * 7)
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