""""The MAIN module in a process that aims to take textual input scores

for a soccer (football) league and determine who won the season based

on the scoring rules for the league."""



import argparse

from collections import namedtuple

import pathlib



class PremierLeague:

    """This class ingests a text file and transforms that into workable

    units to determine the scores of each team in the league"""



    Match = namedtuple('Match', ['team','score'])



    def __init__(self, text_file:pathlib.Path):

        if not isinstance(text_file,pathlib.Path):

            try:

                text_file = pathlib.Path(text_file)

            except Exception as e:

                print(e)



        self.text_file = text_file

        with self.text_file.open('r') as f:

            self.lines = f.readlines()



        self.season = []

        self.teams = dict()

        self.rankings = []

        self.extract_team_data()

        self.extract_teams()

        self.calculate_standings()

        print(self.standings)



    def extract_team_data(self):

        for line in self.lines:

            line.strip()

            game = line.split(', ')

            match = []

            for team in game:

                if team[-1] == '\n':

                    team = team[:-1]

                match.append(self.Match(team[:-1],team[-1]))

            self.season.append(match)



    def extract_teams(self):

        for game in self.season:

            for FC in game:

                if FC.team not in self.teams:

                    self.teams[FC.team] = 0



    def calculate_standings(self):

        for game in self.season:

            team1 = game[0]

            team2 = game[1]

            if team1.score > team2.score:

                self.teams[team1.team] += 3

            elif team2.score > team1.score:

                self.teams[team2.team] =+ 3

            else:

                # this means it was a tie

                self.teams[team1.team] += 1

                self.teams[team2.team] += 1



    @property

    def standings(self):

        rankings = [self.Match(k,v) for k,v in self.teams.items()]

        rankings.sort(key=self.get_score, reverse=True)

        list_of_strings = ["{0} ,{1} pts".format(team.team, team.score) for team in rankings]

        temp_string = ""

        for index in range(len(list_of_strings)):

            temp_string += "{0}. {1}\n".format(str(index+1), list_of_strings[index])

        return temp_string



    @staticmethod

    def get_score(element):

        """returns the score element of an Match object"""

        return element.score



if __name__ == '__main__':

    args = argparse.ArgumentParser()

    args.add_argument('--file',action='store', default='test.txt')

    results = args.parse_args()

    scores = PremierLeague(pathlib.Path(results.file))