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#!/usr/bin/env python3 

 

import requests 

import sqlalchemy 

from bs4 import BeautifulSoup 

from datetime import datetime 

from . import model 

 

BSW_URL = 'http://tichulog.brettspielwelt.de' 

 

def scrape_bsw_month(year, month, progress_ui): 

if year < 2007: 

raise NoDataBefore2007() 

 

index_url = f'{BSW_URL}/{year}{month:02}/' 

progress_ui.download_index(index_url) 

 

index_request = requests.get(index_url) 

index_doc = BeautifulSoup(index_request.text, features='lxml') 

game_links = index_doc.find_all('a') 

 

session = model.init_db() 

 

for i, a in enumerate(game_links): 

game_url = BSW_URL + a.get('href') 

game_date = datetime.strptime(a.text[:16], '%Y-%m-%d %H:%M') 

progress_ui.download_game(game_url, i, len(game_links)) 

 

if model.is_game_recorded(session, game_url): 

continue 

 

try: 

scrape_bsw_game(session, game_url, game_date) 

session.commit() 

except Exception as err: 

session.rollback() 

progress_ui.error(game_url, err) 

 

def scrape_bsw_game(session, game_url, game_date=None): 

game_request = requests.get(game_url) 

game_txt = game_request.text 

 

game = parse_game(game_txt) 

game['url'] = game_url 

game['date'] = game_date 

 

record_game(session, game) 

 

 

def parse_game(tch): 

mode = None 

lines = tch.split('\n') 

 

rounds = [] 

players = parse_players(lines) 

player_ids = {v: k for k, v in players.items()} 

 

for line in lines: 

if not line: 

continue 

 

tokens = line.split() 

 

# Work out what kind of line we're looking at. 

if line == '---------------Gr.Tichukarten------------------': 

mode = 'first deal' 

first_deals = {} 

calls = {} 

continue 

 

if line == '---------------Startkarten------------------': 

mode = 'second deal' 

second_deals = {} 

continue 

 

if line == 'Schupfen:': 

mode = 'exchange' 

exchanges = {} 

continue 

 

if line == '---------------Rundenverlauf------------------': 

mode = 'actions' 

wish = None 

plays = {i: set() for i in players} 

finishes = [] 

 

if line.startswith('Ergebnis:'): 

mode = 'round over' 

 

finishes += list(set(players) - set(finishes)) 

round = { 

'first_deals': first_deals, 

'second_deals': second_deals, 

'exchanges': exchanges, 

'calls': calls, 

'scores': (int(tokens[1]), int(tokens[3])), 

'wish': wish, 

'finishes': finishes 

} 

rounds.append(round) 

 

# Parse game data 

if mode == 'first deal': 

player = parse_player(tokens[0]) 

first_deals[player] = set(tokens[1:]) 

 

if mode == 'second deal': 

if line.startswith('Grosses Tichu:'): 

player = parse_player(tokens[2]) 

calls[player] = model.CallTypes.grand_tichu 

continue 

 

if line.startswith('Tichu:'): 

player = parse_player(tokens[1]) 

calls[player] = model.CallTypes.tichu_before 

continue 

 

player = parse_player(tokens[0]) 

second_deals[player] = set(tokens[1:]) - first_deals[player] 

 

if mode == 'exchange': 

if tokens[0] == 'BOMBE:': 

continue 

 

giver = parse_player(tokens[0]) 

 

exchanges[giver,player_ids[tokens[2][:-1]]] = tokens[3] 

exchanges[giver,player_ids[tokens[5][:-1]]] = tokens[6] 

exchanges[giver,player_ids[tokens[8][:-1]]] = tokens[9] 

 

if mode == 'actions': 

if tokens[0] == 'Tichu:': 

player = parse_player(tokens[1]) 

calls[player] = model.CallTypes.tichu_after 

 

elif tokens[0].startswith('Wunsch'): 

wish = (player, tokens[0].split(':')[-1]) 

 

elif tokens[0].startswith('('): 

player = parse_player(tokens[0]) 

play = tokens[1] 

 

if play != 'passt.': 

plays[player].update(tokens[1:]) 

if len(plays[player]) == 14: 

finishes.append(player) 

 

game = { 

'url': None, 

'players': players, 

'rounds': rounds, 

} 

return game 

 

def parse_players(tch_lines): 

players = {} 

for line in tch_lines[1:5]: 

token = line.split()[0] 

players[int(token[1])] = token[3:] 

 

return players 

 

def parse_player(token): 

return int(token[1]) 

 

 

def record_game(session, game_dict): 

if model.is_game_recorded(session, game_dict['url']): 

return 

 

game = model.Game(url=game_dict['url']) 

teams, seats = record_players(session, game, game_dict['players']) 

cards = load_cards(session) 

 

for i, round_dict in enumerate(game_dict['rounds']): 

record_round(session, game, teams, seats, cards, round_dict, i) 

 

def record_players(session, game, players_dict): 

seat_order = { 

0: model.SeatTypes.south, 

1: model.SeatTypes.east, 

2: model.SeatTypes.north, 

3: model.SeatTypes.west, 

} 

 

# Create the teams for this game. 

teams = [ 

model.Team(game=game), 

model.Team(game=game), 

] 

session.add_all(teams) 

 

# Create the players. Fill in the teams and seats. 

team_map = {} 

seat_map = {} 

 

for i, name in players_dict.items(): 

player = model.get_or_create(session, model.Player, name=name) 

 

team_map[i] = teams[i%2] 

team_map[i].players.add(player) 

 

seat = model.Seat(game=game, player=player, seat=seat_order[i]) 

seat_map[i] = seat 

session.add(seat) 

 

return team_map, seat_map 

 

def record_round(session, game, teams, seats, cards, round_dict, round_num): 

round = model.Round(game=game, order=round_num) 

 

# Deals 

record_deal(session, round, seats, cards, 

round_dict['first_deals'], model.DealTypes.first_8) 

record_deal(session, round, seats, cards, 

round_dict['second_deals'], model.DealTypes.second_6) 

 

# Exchanges 

for (i, j), x in round_dict['exchanges'].items(): 

exchange = model.Exchange( 

round=round, 

giver=seats[i], 

taker=seats[j], 

card=cards[x], 

) 

session.add(exchange) 

 

# Tichu calls 

for i, call_type in round_dict['calls'].items(): 

call = model.Call( 

round=round, 

seat=seats[i], 

call=call_type, 

) 

session.add(call) 

 

# Wishes: 

if round_dict['wish']: 

i, rank = round_dict['wish'] 

wish = model.Wish( 

round=round, 

seat=seats[i], 

rank=rank_map[rank], 

) 

session.add(wish) 

 

# Finishes: 

for order, i in enumerate(round_dict['finishes']): 

finish = model.Finish( 

round=round, 

seat=seats[i], 

order=order, 

) 

session.add(finish) 

 

# Scores: 

for i, score in enumerate(round_dict['scores']): 

score = model.Score( 

round=round, 

team=teams[i], 

score=score, 

) 

 

def record_deal(session, round, seats, cards, deal_dict, deal_type): 

for i, deal in deal_dict.items(): 

hand = { 

model.Deal( 

round=round, 

seat=seats[i], 

group=deal_type, 

card=cards[x], 

) 

for x in deal 

} 

session.add_all(hand) 

 

def load_cards(session): 

cards = {} 

 

for suit in suit_map: 

for rank in rank_map: 

cards[suit+rank] = model.get_or_create( 

session, model.Card, 

suit=suit_map[suit], 

rank=rank_map[rank], 

) 

 

for special in special_map: 

cards[special] = model.get_or_create( 

session, model.Card, 

special=special_map[special], 

) 

 

return cards 

 

suit_map = { 

'R': model.SuitTypes.red, 

'G': model.SuitTypes.green, 

'B': model.SuitTypes.blue, 

'S': model.SuitTypes.black, # "Schwarz" is "black" in German. 

} 

rank_map = { 

'2': 2, 

'3': 3, 

'4': 4, 

'5': 5, 

'6': 6, 

'7': 7, 

'8': 8, 

'9': 9, 

'10': 10, 

'B': 11, # "Bauer": Means "farmer", equivalent to jack. 

'D': 12, # "Dame": Means "lady", equivalent to queen. 

'K': 13, 

'A': 14, 

} 

special_map = { 

'Ma': model.SpecialTypes.one, # i.e. "mahjong" 

'Hu': model.SpecialTypes.hound, # "Hund" means "dog" in German. 

'Ph': model.SpecialTypes.phoenix, 

'Dr': model.SpecialTypes.dragon, 

} 

 

class NoDataBefore2007(ValueError): 

 

def __init__(self): 

super().__init__("No game data available before 2007.")