source: geniuswebcore/geniusweb/progress/ProgressRounds.py@ 100

from __future__ import annotations
from datetime import datetime

from geniusweb.progress.Progress import Progress


class ProgressRounds (Progress):
        '''
        progress in terms of number of rounds. The round has to be updated by the
        user of this class, calling {@link #advance()}. immutable.
        '''

        def __init__(self, duration:int, currentRound:int, endtime:datetime):
                '''
                @param duration     length max number of rounds, must be positive (not 0)
                @param currentRound the current round number (can be from 0 to deadlne).
                                    When = deadline, it means the progress has gone past
                                    the deadline.
                @param end          the termination time of this session. 
                                                        WARNING due to a bug in python for windows, this value must be 
                                        at least 100000 seconds above jan. 1, 1970.
                '''
                if duration <= 0:
                        raise ValueError("deadline must be positive but is " + str(duration))
                if currentRound < 0 or currentRound > duration:
                        raise ValueError("current round must be inside [0," + str(duration) + "]")
                self._duration = duration
                self._currentRound = currentRound
                self._endtime = endtime

        def getTerminationTime(self) -> datetime:
                return self._endtime

        def getDuration(self):
                '''
                @return max number of rounds, positive  integer (not 0)
                '''
                return self._duration
        
        def getEndtime(self):
                return self._endtime

        def getCurrentRound(self) -> int:
                '''
                @return the current round. First round is 0. It is recommended that you
                        use the functions in {@link Progress} instead of this, to ensure
                        your code works with all implementations of Progress including
                        future developments.
                '''
                return self._currentRound

        def getTotalRounds(self) -> int:
                '''
                @return total number of rounds. It is recommended that you use the
                        functions in {@link Progress} instead of this, to ensure your
                        code works with all implementations of Progress including future
                        developments.
                '''
                return self._duration

        def get(self, currentTimeMs:int) -> float:
                # deadline and current both are limited to MAXINT is 32 bits; double
                # fits 52
                # bits so this should not result in accuracy issues
                ratio:float = self._currentRound / self._duration;
                if ratio > 1:
                        ratio = 1;
                elif ratio < 0:
                        ratio = 0;
                return ratio;

        def isPastDeadline(self, currentTimeMs:int) -> bool:
                return self._currentRound >= self._duration or \
                        currentTimeMs > int(1000 * datetime.timestamp(self._endtime))

        def advance(self) -> "ProgressRounds":
                '''
                @return new ProgressRounds with round 1 advanced (or this, if
                        currentRound= duration). This is up to the user, as it is up to
                        the used protocol what exactly is a round.
                '''
                if self._duration == self._currentRound:
                        return self
                return ProgressRounds(self._duration, self._currentRound + 1, self._endtime)

        def __hash__(self):
                return hash((self._currentRound, self._duration))
        
        def __eq__(self, other):
                return isinstance(other, self.__class__) \
                        and self._currentRound == other._currentRound \
                        and self._duration == other._duration \
                        and self._endtime == other._endtime

        def __repr__(self):
                return "ProgressRounds[" + str(self._currentRound) \
                        +" of " + str(self._duration) + "]"