# -*- coding: utf-8 -*-

import datetime
import random
import django.contrib.auth
from django.db import transaction

from seminar.models import Skola, Resitel, Rocnik, Cislo, Problem, Reseni, PrilohaReseni, Nastaveni

User = django.contrib.auth.get_user_model()

@transaction.atomic
def create_test_data(size = 6, rnd = None):
    assert size >= 1
    # pevna pseudo-nahodnost
    rnd = rnd or random.Random(x=42)

    # users
    admin = User.objects.create_superuser(username='admin', email='', password='admin')

    usernames = ['anet', 'bara', 'cyril', 'david', 'eva', 'filip']
    orgs = []
    for org in usernames[:size]:
        o = User.objects.create_user(username=org, password=org)
        o.first_name = org.capitalize()
        o.save()
        orgs.append(o)

    # skoly
    Skola.objects.create(mesto = u'Praha', stat='CZ', psc='101 00', ulice=u'Krátká 5', nazev=u'První SŠ')
    Skola.objects.create(mesto = u'Praha', stat='CZ', psc='102 00', ulice=u'Dlouhá 5', nazev=u'Druhá SŠ')
    Skola.objects.create(mesto = u'Praha', stat='CZ', psc='103 00', ulice=u'Široká 3', nazev=u'Třetí SŠ')
    Skola.objects.create(mesto = u'Ostrava', stat='CZ', psc='700 00', ulice=u'Hluboká 42', nazev=u'Hutní gympl')
    Skola.objects.create(mesto = u'Humenné', stat='SK', psc='012 34', ulice=u'Pltká 1', nazev=u'Sredná škuola')

    # resitele
    jmena_m = ['Aleš', 'Tomáš', 'Martin', 'Jakub', 'Petr', 'Lukáš', 'Cyril']
    jmena_f = ['Eva', 'Karolína', 'Zuzana', 'Sylvie', 'Iva', 'Jana', 'Marie']
    prijmeni_m = ['Novotný', 'Svoboda', 'Pecha', 'Kořen', 'Holan', 'Uhlíř', 'Chytráček', 'Pokora', 'Koch', 'Szegedy', 'Rudý']
    prijmeni_f = ['Novotná', 'Svobodová', 'Machová', 'Zelená', 'Yu-Xin', 'Mlsná', 'Dubná', 'Mrkvová', 'Suchá', 'Lovelace', 'Holcová']
    for i in range(3*size):
        skola = rnd.choice(Skola.objects.all())
        pohlavi = rnd.randint(0,1)
        jmeno = rnd.choice([jmena_m, jmena_f][pohlavi])
        prijmeni = rnd.choice([prijmeni_m, prijmeni_f][pohlavi])
        Resitel.objects.create(skola = skola, datum_prihlaseni = datetime.date(rnd.randint(2002, 2014), rnd.randint(1,12), 1),
                jmeno =jmeno, prijmeni = prijmeni, rok_maturity = rnd.randint(2015, 2019),
                stat = skola.stat, zasilat = Resitel.ZASILAT_NIKAM, pohlavi_muz = pohlavi)
    resitele = list(Resitel.objects.all())

    # rocniky
    last_rocnik = 21
    for ri in range(last_rocnik - size, last_rocnik + 1):
        r = Rocnik.objects.create(prvni_rok = 1993 + ri, rocnik = ri)

        # cisla
        cisel = rnd.randint(4, 6)

        cs = {}
        for ci in range(1, cisel + 1):
            vydano = datetime.date(r.prvni_rok, ci + 6, 1)
            deadline = datetime.date(r.prvni_rok, ci + 8, 1) if ci + 2 < cisel else None
            c = Cislo.objects.create(rocnik = r, cislo = str(ci), datum_vydani=vydano, datum_deadline=deadline)
            cs[ci] = c

            # problemy resene v ci
            seq='#ABCDEFGHIJKLMNOPQRSTUVWXYZ'
            if ci >= 3:
                for pi in range(1, ((size + 1) // 2) + 1):
                    p = Problem.objects.create(autor = rnd.choice(orgs), cislo_zadani=cs[ci-2], cislo_reseni=cs[ci],
                            opravovatel = rnd.choice(orgs), kod = str(pi), nazev = u'Dummy úloha %s-%s' % (seq[ci], seq[pi]),
                            stav = Problem.STAV_ZADANY, typ = Problem.TYP_ULOHA, body = rnd.randint(1, 5))
                    p.text_problemu = (u"<p>Text problému <strong>%s.%s %s</strong><em> [id %d]</em> za %d body.</p>" %
                            (p.cislo_zadani.kod(), p.kod, p.nazev, p.id, p.body))
                    p.text_problemu_org = u"<p><strong>Neveřejný</strong> text problému.</p>"
                    p.save()

                    poc_reseni = rnd.randint(size // 2, size * 2)
                    res_sel = rnd.sample(resitele, min(poc_reseni, len(resitele) - 2))
                    for resitel in res_sel:
                        res = Reseni.objects.create(problem = p, resitel = resitel,
                                body = rnd.randint(0, p.body), cislo_body = cs[ci])

    nastaveni = Nastaveni.objects.create(aktualni_rocnik = Rocnik.objects.last(),
            aktualni_cislo = Cislo.objects.all()[1])