import csv
import sys
import glob
import re

from os import path
from bs4 import BeautifulSoup as bs4


class JFRBidding:

    # alignment of the bidding table
    __directions = ['W', 'N', 'E', 'S']

    # converts csv file to list of row lists
    def __csv_to_list(self, file_path):
        file_data = []
        with file(file_path) as csv_file:
            csv_data = csv.reader(csv_file)
            for line in csv_data:
                file_data.append(line)
        return file_data

    # converts CSV lineup data to
    # {round}.{sector}_{table}.{pair numbers} structure
    def __parse_lineup_data(self, sitting_data):
        round_lineups = {}
        for sitting in sitting_data[1:]:
            round_no = int(sitting[2])
            table_no = sitting[0] + '_' + sitting[1]
            if round_no not in round_lineups:
                round_lineups[round_no] = {}
            round_lineups[round_no][table_no] = sorted([
                int(sitting[3]),
                int(sitting[4])])
        return round_lineups

    # converts CSV bidding to
    # {board}.{sector}_{table}.{round}.{bidding}[] structure,
    # including erased calls
    def __parse_bidding_data(self, bidding_data):
        bids = {}
        for bid in bidding_data[1:]:
            board_no = int(bid[4])
            round_no = int(bid[3])
            table_no = bid[1] + '_' + bid[2]
            bid_counter = int(bid[5])
            bid_erased = int(bid[10])
            if board_no not in bids:
                bids[board_no] = {}
            if table_no not in bids[board_no]:
                bids[board_no][table_no] = {}
            if round_no not in bids[board_no][table_no]:
                bids[board_no][table_no][round_no] = {}
            if bid_erased == 1:
                if bid_counter in bids[board_no][table_no][round_no]:
                    if bids[board_no][table_no][round_no][bid_counter][
                            'direction'] == bid[6]:
                        bids[board_no][table_no][round_no].pop(
                            bid_counter, None)
                        if len(bids[board_no][table_no][round_no]) == 0:
                            bids[board_no][table_no].pop(round_no, None)
            else:
                bids[board_no][table_no][round_no][bid_counter] = {
                    'direction': bid[6], 'bid': bid[7]}
        return bids

    # converts bidding data into HTML table
    def __format_bidding(self, bidding):
        bid_match = re.compile('(\d)([SHDCN])')
        html_output = bs4('<table>', 'lxml')
        header_row = html_output.new_tag('tr')
        html_output.table.append(header_row)
        for direction in self.__directions:
            header_cell = html_output.new_tag('th')
            header_cell.string = direction
            header_row.append(header_cell)
        for bid_round in bidding:
            bidding_row = html_output.new_tag('tr')
            html_output.table.append(bidding_row)
            for bid in bid_round:
                bid_cell = html_output.new_tag('td')
                call_match = re.match(bid_match, bid)
                if call_match:
                    bid_cell.append(call_match.group(1))
                    bid_icon = html_output.new_tag(
                        'img', src='images/' + call_match.group(2) + '.gif')
                    bid_cell.append(bid_icon)
                else:
                    bid_cell.append(bid)
                bidding_row.append(bid_cell)
        return html_output.table.prettify()

    # returns file path for bidding HTML output
    # {prefix}_bidding_{jfr_board_number}_{pair_numbers}.txt
    def __get_bidding_file_output_path(self,
                                       board_no,
                                       round_no=None,
                                       table_no=None,
                                       pair_numbers=None):
        return '{0}_bidding_{1:03}_{2}.txt'.format(
            self.__tournament_prefix, board_no,
            '_'.join(map(str,
                         self.__round_lineups[round_no][table_no]
                         if pair_numbers is None  # read numbers from lineup
                         else pair_numbers)))     # or use provided numbers

    def __map_board_numbers(self, custom_mapping=None):
        self.__tournament_files = [
            f for f
            in glob.glob(self.__tournament_prefix + '*.html')
            if re.search(self.__tournament_files_match, f)]
        if custom_mapping is None or len(custom_mapping) < 3:
            for round_data in self.__lineup_data:
                # 13th column has JFR number for the first board
                if len(round_data[12]):
                    jfr_number = int(round_data[12])
                    if jfr_number:
                        # 5th and 6th - actual board number
                        for board_number in range(int(round_data[5]),
                                                  int(round_data[6])+1):
                            self.__board_number_mapping[board_number] = \
                                jfr_number + board_number - int(round_data[5])
        else:
            for jfr_number in range(custom_mapping[0], custom_mapping[1]+1):
                self.__board_number_mapping[
                    jfr_number - custom_mapping[0] + custom_mapping[2]
                ] = jfr_number
        # only include these board numbers from custom mapping
        # which actually exist in JFR output
        custom_files = []
        for b_number, jfr_number in self.__board_number_mapping.iteritems():
            board_files = [
                f for f
                in self.__tournament_files
                if f.endswith('{0:03}.html'.format(jfr_number))]
            if len(board_files):
                custom_files = custom_files + board_files
            else:
                self.__board_number_mapping[b_number] = None
        self.__tournament_files = custom_files

    # sitting read from BWS
    __round_lineups = {}
    # bidding read from BWS
    __bids = {}

    # full path + JFR prefix
    __tournament_prefix = ''
    # RegEx matching board HTML files
    __tournament_files_match = None
    # matched files, including board number mapping boundaries
    __tournament_files = []

    # BWS number -> JFR number mapping
    __board_number_mapping = {}

    def __init__(self, bidding_file, lineup_file, file_prefix, board_mapping):
        self.__lineup_data = self.__csv_to_list(lineup_file)
        self.__round_lineups = self.__parse_lineup_data(self.__lineup_data)
        self.__bids = self.__parse_bidding_data(
            self.__csv_to_list(bidding_file))
        self.__tournament_prefix = path.splitext(
            path.realpath(file_prefix + '.html'))[0]
        self.__tournament_files_match = re.compile(
            re.escape(self.__tournament_prefix) + '([0-9]{3})\.html')
        self.__map_board_numbers(board_mapping)

    def write_bidding_tables(self):
        for board_no, board_data in self.__bids.items():
            if board_no in self.__board_number_mapping:
                for table_no, table_data in board_data.items():
                    for round_no, round_data in table_data.items():
                        if round_no in self.__round_lineups:
                            if table_no in self.__round_lineups[round_no]:
                                bidding = sorted(round_data)
                                dealer = round_data[bidding[0]]['direction']
                                bidding_table = [[], [], [], []]
                                # compile bidding player-by-player
                                for bid_index in bidding:
                                    bid = round_data[bid_index]
                                    bidding_table[
                                        self.__directions.index(
                                            bid['direction'])
                                    ].append(bid['bid'])
                                    last_bidder = bid['direction']
                                # fill skipped calls for players before dealer
                                # in the first round of bidding
                                for pos in range(
                                        0, self.__directions.index(dealer)):
                                    bidding_table[pos].insert(0, '')
                                # fill skipped calls for players after pass out
                                # (so that bidding table is a proper matrix)
                                for pos in range(
                                        self.__directions.index(last_bidder),
                                        len(self.__directions)):
                                    bidding_table[pos].append('')
                                # transpose the bidding table
                                # aligning it row-by-row (bid round-by-round)
                                bidding_table = map(list, zip(*bidding_table))
                                bidding_fpath = \
                                    self.__get_bidding_file_output_path(
                                        self.__board_number_mapping[board_no],
                                        round_no, table_no)
                                with file(bidding_fpath, 'w') as bidding_file:
                                    bidding_file.write(
                                        self.__format_bidding(bidding_table))

    def write_bidding_scripts(self):
        for tournament_file in self.__tournament_files:
            with file(tournament_file, 'r+') as board_html:
                board_content = bs4(board_html, 'lxml', from_encoding='utf-8')
                header_scripts = board_content.select('head script')
                # check for jQuery, append if necessary
                jquery_scripts = [script for script in header_scripts
                                  if script['src'] == 'javas/jquery.js']
                if not len(jquery_scripts):
                    jquery = board_content.new_tag(
                        'script', src='javas/jquery.js',
                        type='text/javascript')
                    jquery_scripts.append(jquery)
                    board_content.head.append(jquery)
                # check for bidding.js
                bidding_scripts = [
                    script for script in header_scripts
                    if script['src'] == 'javas/bidding.js']
                # and make sure bidding.js is appended after jQuery
                for script in bidding_scripts:
                    script.extract()
                bidding_script = board_content.new_tag(
                    'script', src='javas/bidding.js',
                    type='text/javascript')
                jquery_scripts[0].insert_after(bidding_script)
                board_html.seek(0)
                board_html.write(board_content.prettify(
                    'utf-8', formatter='html'))
                board_html.truncate()

    def write_bidding_links(self):
        for tournament_file in self.__tournament_files:
            file_number = re.match(
                self.__tournament_files_match,
                tournament_file).group(1)
            board_text_path = path.splitext(tournament_file)[0] + '.txt'
            with file(board_text_path, 'r+') as board_text:
                board_text_content = bs4(
                    board_text, 'lxml', from_encoding='iso-8859-2')
                for row in board_text_content.select('tr'):
                    cells = row.select('td')
                    # traveller table rows for specific score entries
                    # should have 11 cells
                    if len(cells) == 11:
                        try:
                            pair_numbers = sorted([
                                int(cells[1].contents[0]),
                                int(cells[2].contents[0])])
                        except ValueError:
                            continue
                        bidding_link = board_text_content.new_tag(
                            'a', href='#', **{'class': 'biddingLink'})
                        bidding_link.string = ' '
                        bidding_link['data-bidding-link'] = path.basename(
                            self.__get_bidding_file_output_path(
                                int(file_number, 10),
                                pair_numbers=pair_numbers))
                        # only append link if we've got bidding data
                        if path.isfile(path.join(
                                path.dirname(self.__tournament_prefix),
                                bidding_link['data-bidding-link'])):
                            # fourth cell is the contract
                            for link in cells[3].select('a.biddingLink'):
                                link.extract()
                            cells[3].append(bidding_link)
                board_text.seek(0)
                board_text.write(board_text_content.table.prettify(
                    'iso-8859-2', formatter='html'))
                board_text.truncate()

if __name__ == '__main__':
    import argparse

    argument_parser = argparse.ArgumentParser(
        description='Display bidding data from BWS files on JFR Pary pages')
    argument_parser.add_argument('bidding_file', metavar='BIDDING_FILE',
                                 help='CSV containing bidding data from BWS')
    argument_parser.add_argument('lineup_file', metavar='LINEUP_FILE',
                                 help='CSV containing lineup data from BWS')
    argument_parser.add_argument('path', metavar='PATH',
                                 help='tournament path with JFR prefix')
    argument_parser.add_argument('board_mapping', metavar='BOARD_MAPPING',
                                 default=[], nargs='*', type=int,
                                 help='board number mapping ' +
                                 '(JFR_FROM JFR_TO BWS_FROM)')

    arguments = argument_parser.parse_args()

    bidding_parser = JFRBidding(
        bidding_file=arguments.bidding_file,
        lineup_file=arguments.lineup_file,
        file_prefix=arguments.path,
        board_mapping=arguments.board_mapping
    )
    bidding_parser.write_bidding_tables()
    bidding_parser.write_bidding_scripts()
    bidding_parser.write_bidding_links()