path: root/ausbutler/interface.py

import re
from copy import copy
from datetime import datetime
from os import path

from jinja2 import Environment, FileSystemLoader
from sqlalchemy import text
from sqlalchemy.exc import ProgrammingError

from .butler import cutoff, get_line, get_opponents, get_room, normalize, get_old_normbutler
from .config import load_config
from .db import get_session
from .model import AusButler, Butler
from .tour_config import Constants, Translations


class Interface(object):

    def __init__(self, config):
        db_config = load_config('db')
        print 'Tournament name: %s' % (db_config['db'])
        self.session = get_session(db_config)
        self.config = config
        self.translation = Translations()
        self.template = Environment(loader=FileSystemLoader('template'))
        self.template.filters['translate'] = self.translation.get_translation
        self.old_butler_normalized = False

    def calculate_all(self):
        self.init_db()
        self.populate_db()
        self.opp_scores()
        self.normalize_scores()

    def init_db(self, force=False):
        from .model import Base
        if force:
            Base.metadata.drop_all(self.session.get_bind())
        Base.metadata.create_all(self.session.get_bind())

    def populate_db(self):
        self.session.query(AusButler).delete()
        if Constants.oldbutler is not None:
            old_bulter_query = text(
                'SELECT * FROM %s.butler' % Constants.oldbutler)
            old_normbutler_query = text(
                'SELECT id, SUM(cut_score), SUM(corrected_score) FROM %s.aus_butler GROUP BY id' % Constants.oldbutler
            )
            try:
                old_normbutler = self.session.execute(old_normbutler_query)
                self.old_butler_normalized = True
                print 'WARNING: Old butler was normalized, but will not be normalized with scores from current tournament'
            except ProgrammingError:
                print 'WARNING: Old butler was not normalized, approximation from score per board will be used'
                old_normbutler = None
            for row in self.session.execute(old_bulter_query):
                if row[2] > 0:
                    old_norm = get_old_normbutler(old_normbutler, row[0]) if old_normbutler is not None else None
                    aus_b = AusButler()
                    aus_b.id = row[0]
                    aus_b.match = 0
                    aus_b.segment = 0
                    aus_b.score = row[1] * row[2]
                    aus_b.cut_score = old_norm[1] if old_norm is not None else aus_b.score
                    aus_b.corrected_score = old_norm[2] if old_norm is not None else aus_b.score
                    aus_b.board_count = row[2]
                    self.session.add(aus_b)
        column_name = re.compile(r'^seg(\d+)(_(\d+))?$')
        for butler in self.session.query(Butler).all():
            for column, value in butler.__dict__.iteritems():
                column_match = re.match(column_name, column)
                if column_match:
                    if value is not None:
                        round_no = int(column_match.group(1), base=10)
                        if Constants.segmentsperround > 1:
                            segm_no = int(column_match.group(3))
                        else:
                            segm_no = 1
                        if round_no < Constants.rnd or (
                            round_no == Constants.rnd and segm_no <= Constants.segm):
                            aus_b = AusButler()
                            aus_b.id = butler.id
                            aus_b.match = round_no
                            aus_b.segment = segm_no
                            aus_b.score = float(value)
                            aus_b.cut_score = cutoff(
                                aus_b.score,
                                self.config['cutoff_point'],
                                self.config['cutoff_rate'])
                            aus_b.board_count = aus_b.table.butler_count[
                                get_room(aus_b, butler.id)]
                            self.session.add(aus_b)
        self.session.commit()

    def __filter_opp_score(self, butler, opp_butler):
        if self.config['only_current']:
            return opp_butler.match < butler.match or \
                (opp_butler.match == butler.match and
                 opp_butler.segment <= butler.segment)
        else:
            return True

    def opp_scores(self):
        butlers = self.session.query(AusButler).filter(
            AusButler.match > 0).all()
        opp_butlers = self.session.query(AusButler).all()
        for butler in butlers:
            opps = get_opponents(butler, butler.id)
            averages = {opps[0]: {'sum': 0.0, 'count': 0},
                        opps[1]: {'sum': 0.0, 'count': 0}}
            for opp_butler in opp_butlers:
                if opp_butler.id in opps \
                   and self.__filter_opp_score(butler, opp_butler):
                    averages[opp_butler.id]['sum'] += opp_butler.cut_score
                    averages[opp_butler.id]['count'] += opp_butler.board_count
            butler.opp_score = sum(
                [opp['sum'] / opp['count'] if opp['count'] > 0 else 0.0
                 for opp in averages.values()]
            ) / 2
        self.session.commit()

    def normalize_scores(self):
        for butler in self.session.query(AusButler).filter(
                AusButler.match > 0).all():
            butler.corrected_score = normalize(
                butler, self.config['opponent_factor'])
        self.session.commit()

    def generate_all(self):
        files = []
        files += self.generate_segments()
        files += self.generate_frames()
        files += self.generate_table()
        return list(set(files))

    def generate_frames(self):
        files = []
        template = self.template.get_template('frame.html')
        for round_no in range(1, Constants.rnd + 1):
            for segment_no in range(1, Constants.segmentsperround + 1):
                first_board = 1 + (segment_no - 1) * Constants.boardspersegment
                filename = '%snormbutler%d-%d.htm' % (
                    Constants.shortname,
                    round_no, segment_no
                )
                file(path.join(Constants.path, filename), 'w').write(
                    template.render({
                        'prefix': Constants.shortname,
                        'round_no': round_no,
                        'segment_no': segment_no,
                        'first_board': first_board
                    }).encode('utf8')
                )
                files.append(filename)
        return files

    def generate_segments(self):
        files = []
        template = self.template.get_template('segment.html')
        for round_no in range(1, Constants.rnd + 1):
            for segment_no in range(1, Constants.segmentsperround + 1):
                first_board = 1 + (segment_no - 1) * Constants.boardspersegment
                filename = '%snormbutler%d-%d.html' % (
                    Constants.shortname,
                    round_no, segment_no
                )
                results = {}
                for butler in self.session.query(AusButler).filter(
                        AusButler.match == round_no,
                        AusButler.segment == segment_no):
                    line = 'TABLE_%s' % (get_line(butler, butler.id))
                    position = '%d%s' % (
                        butler.table.tabl,
                        self.translation.get_translation(line)
                    )
                    if position not in results:
                        results[position] = {'players': []}
                    results[position]['place'] = ''
                    results[position]['players'].append(
                        str(butler.player).decode('utf8'))
                    results[position]['position'] = position
                    results[position]['team'] = str(
                        butler.player.team_).decode('utf8')
                    results[position]['score'] = butler.score
                    results[position]['opp_score'] = butler.opp_score
                    results[position]['norm_score'] = butler.corrected_score
                results = sorted(results.values(),
                                 key=lambda r: r['norm_score'], reverse=True)
                place = 1
                previous = None
                for r in range(0, len(results)):
                    if results[r]['norm_score'] != previous:
                        results[r]['place'] = place
                    previous = results[r]['norm_score']
                    place += 1
                file(path.join(Constants.path, filename), 'w').write(
                    template.render({
                        'prefix': Constants.shortname,
                        'logoh': Constants.logoh,
                        'round_no': round_no,
                        'segment_no': segment_no,
                        'per_round': Constants.segmentsperround,
                        'results': results,
                        'boards': range(
                            first_board,
                            first_board + Constants.boardspersegment
                        ),
                        'date': datetime.now().strftime('%Y-%m-%d'),
                        'time': datetime.now().strftime('%H:%M')
                    }).encode('utf8')
                )
                files.append(filename)
        return files

    def generate_table(self):
        template = self.template.get_template('table.html')
        filename = '%snormbutler.html' % (Constants.shortname)
        old_prefix = None
        segments = []
        result_template = []
        if Constants.oldbutler:
            old_prefix = self.session.execute(text(
                'SELECT shortname FROM %s.admin LIMIT 1' % Constants.oldbutler
            )).fetchone()[0]
            segments.append({
                'round': 0, 'segment': 0,
                'label': Constants.oldbutler,
                'link': ('%snormbutler.html' if self.old_butler_normalized else '%sbutler.html') % old_prefix
            })
            result_template.append('')
        for rnd in range(1, Constants.rnd + 1):
            for segment in range(1, Constants.segmentsperround + 1):
                segments.append({'round': rnd, 'segment': segment})
                result_template.append('')
        players = {}
        for butler in self.session.query(AusButler).all():
            if butler.id not in players:
                players[butler.id] = {
                    'name': str(butler.player).decode('utf8'),
                    'team': str(butler.player.team_).decode('utf8'),
                    'sum': 0,
                    'count': 0,
                    'results': copy(result_template)
                }
            players[butler.id]['sum'] += butler.corrected_score
            players[butler.id]['count'] += butler.board_count
            players[butler.id]['results'][
                ((butler.match - 1) * Constants.segmentsperround +
                 (butler.segment - 1)) if butler.match > 0 else 0
            ] = butler.corrected_score
        for player in players.values():
            if player['count'] > 0:
                player['sum'] /= player['count']
        players = sorted(players.values(),
                         key=lambda p: p['sum'], reverse=True)
        board_threshold = Constants.boardspersegment
        board_threshold *= Constants.segmentsperround
        board_threshold *= Constants.rnd + (
            Constants.roundcnt * (Constants.minbutler / 100.0 - 1)
        )
        above_threshold = []
        below_threshold = []
        for player in players:
            if player['count'] >= board_threshold:
                above_threshold.append(player)
            else:
                below_threshold.append(player)
        for p_list in [above_threshold, below_threshold]:
            place = 1
            prev = None
            for player in p_list:
                if player['sum'] != prev:
                    player['place'] = place
                prev = player['sum']
                place += 1
        file(path.join(Constants.path, filename), 'w').write(
            template.render({
                'prefix': Constants.shortname,
                'logoh': Constants.logoh,
                'percent_threshold': Constants.minbutler,
                'segments': segments,
                'segment_limit': self.config['segments_in_table_limit'],
                'per_round': Constants.segmentsperround,
                'above_threshold': above_threshold,
                'below_threshold': below_threshold,
                'date': datetime.now().strftime('%Y-%m-%d'),
                'time': datetime.now().strftime('%H:%M')
            }).encode('utf8')
        )
        return [filename]