import re

# Task 1
class Party:
    def __init__(self, fylke, code, name, voters, votes):
        self.fylke = fylke
        self.code = code
        self.name = name
        self.voters = voters
        self.votes = votes
    
    def percent(self):
        return self.votes*100/self.voters

def table_from_votes(file_path, num=None):
    with open(file_path) as f:
        lines = f.readlines()
        f.close()

    # Read all the entries into a list of parties
    local_parties = []
    for l in lines[1:]:
        l = l.split(';')
        party = Party(fylke=l[1], code=l[6], name=l[7], voters=int(l[9]), votes=int(l[12]))
        local_parties.append(party)

    # Combine all the local results into a list of national party results
    p_codes = []
    parties = []
    for p in local_parties:
        if p.code not in p_codes:
            party = Party('Alle', p.code, p.name, p.voters, p.votes)
            parties.append(party)
            p_codes.append(p.code)
        else:
            party = next(x for x in parties if x.code == p.code)
            party.voters += p.voters
            party.votes += p.votes
    parties.sort(key=lambda x: x.percent(), reverse=True)

    # Create the table
    t = '{:^25}|{:^10}|{:^10}\n'.format('Parti', 'Prosent', 'Stemmer')
    t += ("-"*len(t)+"\n")
    for n, p in enumerate(parties):
        t += (f'{p.code:^25}|{p.percent():^10.2f}|{p.votes:^10}\n')
        if n == num:
            break;
    return(t)

# Task 2
def get_friends(text):
    friends = []
    for s in text:
        names = re.findall(r'[A-Z]\w*', s)
        if len(names) != 2:
            raise ValueError('String does not contain excactly two capitalized words')
        friends.append(names)
    
    t = '{:^20}\n'.format('Venner')
    t += ("-"*len(t)+"\n")
    for n in friends:
        t += (f'{n[0]:^10}-{n[1]:^10}\n')
    return(t)

def main():
    print(table_from_votes('2021-09-14_party distribution_1_st_2021.csv'))

    text = [
    'Ali and Per and friends.',
    'Kari and Joe know each other.',
    'James has known Peter since school days.'
    ]
    print(get_friends(text))

if __name__ == '__main__':
    main()