import os
from urllib.request import urlretrieve
from shutil import copyfile

from django.core.management import BaseCommand
from django.utils import translation
from member.models import Solution
from tournament.models import Tournament


class Command(BaseCommand):
    PROBLEMS = [
        'Création de puzzles',
        'Départ en vacances',
        'Un festin stratégique',
        'Sauver les meubles',
        'Prêt à décoller !',
        'Ils nous espionnent !',
        'De joyeux bûcherons',
        'Robots auto-réplicateurs',
    ]

    def add_arguments(self, parser):
        parser.add_argument('dir',
                            type=str,
                            default='.',
                            help="Directory where solutions should be saved.")
        parser.add_argument('--language', '-l',
                            type=str,
                            choices=['en', 'fr'],
                            default='fr',
                            help="Language of the title of the files.")

    def handle(self, *args, **options):
        """
        Copy solutions elsewhere.
        """
        d = options['dir']
        teams_dir = d + '/Par équipe'
        os.makedirs(teams_dir, exist_ok=True)

        translation.activate(options['language'])

        copied = 0

        for tournament in Tournament.objects.all():
            os.mkdir(teams_dir + '/' + tournament.name)
            for team in tournament.teams.filter(validation_status='2valid'):
                os.mkdir(teams_dir + '/' + tournament.name + '/' + str(team))
            for sol in tournament.solutions:
                if not os.path.isfile('media/' + sol.file.name):
                    self.stdout.write(self.style.WARNING(("Warning: solution '{sol}' is not found. Maybe the file"
                                                          "was deleted?").format(sol=str(sol))))
                    continue
                copyfile('media/' + sol.file.name, teams_dir + '/' + tournament.name
                         + '/' + str(sol.team) + '/' + str(sol) + '.pdf')
                copied += 1

        self.stdout.write(self.style.SUCCESS("Successfully copied {copied} solutions!".format(copied=copied)))

        os.mkdir(d + '/Par problème')

        for pb in range(1, 9):
            sols = Solution.objects.filter(problem=pb).all()
            pbdir = d + '/Par problème/Problème n°{number} — {problem}'.format(number=pb, problem=self.PROBLEMS[pb - 1])
            os.mkdir(pbdir)
            for sol in sols:
                os.symlink('../../Par équipe/' + sol.tournament.name + '/' + str(sol.team) + '/' + str(sol) + '.pdf',
                           pbdir + '/' + str(sol) + '.pdf')

        self.stdout.write(self.style.SUCCESS("Symlinks by problem created!"))

        urlretrieve('https://tfjm.org/wp-content/uploads/2020/01/Problemes2020_23_01_v1_1.pdf', d + '/Énoncés.pdf')

        self.stdout.write(self.style.SUCCESS("Questions retrieved!"))