Changeset - 068be3e00177
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Laman - 3 years ago 2021-10-20 11:38:18

ranks tracked by the RankTracker
1 file changed with 12 insertions and 14 deletions:
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rank_progress.py
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@@ -2,56 +2,58 @@ import re
 
from itertools import groupby
 
from datetime import datetime
 
import argparse
 

	
 

	
 
class Record:
 
	def __init__(self, tokens, source):
 
		self.source = source
 

	
 
		self.pin = int(tokens[0])
 
		self.country_code = tokens[2]
 
		self.rating_before = int(tokens[8])
 
		self.rounded_before = round_rating(self.rating_before)
 
		self.rating_after = int(tokens[9])
 
		self.rounded_after = round_rating(self.rating_after)
 

	
 
		tournament_code = tokens[5]
 
		self.date = datetime.strptime(tournament_code[1:7], "%y%m%d")
 

	
 
		self.rank_change = (rating_to_rank(self.rating_before), rating_to_rank(self.rating_after))
 
		self.rank_change = ("", "")
 

	
 
	@classmethod
 
	def parse(cls, line):
 
		tokens = re.split(r" {2,}", line.strip())
 

	
 
		if len(tokens) != 10:
 
			return None
 

	
 
		return cls(tokens, line)
 

	
 
	def __str__(self):
 
		s = self.source + "  {} -> {}".format(*self.rank_change)
 
		return s
 

	
 

	
 
class RankTracker:
 
	def __init__(self, rating):
 
		assert rating >= -900
 
		self._rounded_rating = round_rating(rating)
 

	
 
	@property
 
	def rank(self):
 
		return rating_to_rank(self._rounded_rating)
 

	
 
	@property
 
	def rounded_rating(self):
 
		return self._rounded_rating
 

	
 
	def update(self, rating):
 
		assert rating >= -900
 
		rounded_rating = round_rating(rating)
 
		old_rank = self.rank
 

	
 
		if rounded_rating == self._rounded_rating:
 
			pass
 
		elif rounded_rating > self._rounded_rating:  # promotion
 
			self._rounded_rating = rounded_rating
 
		else:  # demotion
 
			if self._rounded_rating >= 1600 and self._rounded_rating - rating > 100:
 
				self._rounded_rating = rounded_rating
 
@@ -92,34 +94,30 @@ if __name__ == "__main__":
 
	to = datetime.strptime(args.to, "%Y%m%d") if args.to else datetime.now()
 

	
 
	with open("/tmp/all.hst") as f:
 
		s = f.read()
 

	
 
	records = [Record.parse(line) for line in s.splitlines()]
 
	records = filter(lambda rec: rec is not None, records)
 
	national_records = filter(lambda rec: rec.country_code == args.country_code, records)
 
	player_records = groupby(national_records, lambda rec: rec.pin)
 

	
 
	for (pin, recs) in player_records:
 
		tourneys = list(recs)
 
		rounded_rating = tourneys[0].rounded_before
 

	
 
		tracker = RankTracker(tourneys[0].rating_before)
 
		steps = []
 

	
 
		for r in tourneys:
 
			# omit reset ratings
 
			if rounded_rating != r.rounded_before:
 
				rounded_rating = r.rounded_before
 
			if tracker.rounded_rating != round_rating(r.rating_before):
 
				tracker = RankTracker(r.rating_before)
 

	
 
			if r.rating_after-rounded_rating >= 50 or \
 
					(rounded_rating-r.rating_after > 100 and rounded_rating >= 1600):
 
			old_rank = tracker.rank
 
			new_rank = tracker.update(r.rating_after)
 
			if new_rank is not False:
 
				r.rank_change = (old_rank, new_rank)
 
				steps.append(r)
 
				rounded_rating = r.rounded_after
 
			elif rounded_rating-r.rating_after > 150:
 

	
 
				steps.append(r)
 
				rounded_rating = r.rounded_after + 100
 

	
 
		steps = [r for r in steps if since <= r.date <= to]
 
		if steps:
 
			print("\n".join(map(str, steps)))
 
			print()
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