#
# Copyright 2023 © AE UTBM
# ae@utbm.fr / ae.info@utbm.fr
#
# This file is part of the website of the UTBM Student Association (AE UTBM),
# https://ae.utbm.fr.
#
# You can find the source code of the website at https://github.com/ae-utbm/sith
#
# LICENSED UNDER THE GNU GENERAL PUBLIC LICENSE VERSION 3 (GPLv3)
# SEE : https://raw.githubusercontent.com/ae-utbm/sith/master/LICENSE
# OR WITHIN THE LOCAL FILE "LICENSE"
#
#
import re
from datetime import timedelta

import pytest
from django.conf import settings
from django.core.cache import cache
from django.test import TestCase
from django.urls import reverse
from django.utils import timezone
from django.utils.timezone import now
from freezegun import freeze_time
from model_bakery import baker

from club.models import Club, Membership
from core.baker_recipes import subscriber_user
from core.models import User
from counter.models import (
    Counter,
    Customer,
    Permanency,
    Product,
    Selling,
)


class TestCounter(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.skia = User.objects.filter(username="skia").first()
        cls.sli = User.objects.filter(username="sli").first()
        cls.krophil = User.objects.filter(username="krophil").first()
        cls.richard = User.objects.filter(username="rbatsbak").first()
        cls.mde = Counter.objects.filter(name="MDE").first()
        cls.foyer = Counter.objects.get(id=2)

    def test_full_click(self):
        self.client.post(
            reverse("counter:login", kwargs={"counter_id": self.mde.id}),
            {"username": self.skia.username, "password": "plop"},
        )
        response = self.client.get(
            reverse("counter:details", kwargs={"counter_id": self.mde.id})
        )

        assert 'class="link-button">S&#39; Kia</button>' in str(response.content)

        counter_token = re.search(
            r'name="counter_token" value="([^"]*)"', str(response.content)
        ).group(1)

        response = self.client.post(
            reverse("counter:details", kwargs={"counter_id": self.mde.id}),
            {"code": self.richard.customer.account_id, "counter_token": counter_token},
        )
        counter_url = response.get("location")
        response = self.client.get(response.get("location"))
        assert ">Richard Batsbak</" in str(response.content)

        self.client.post(
            counter_url,
            {
                "action": "refill",
                "amount": "5",
                "payment_method": "CASH",
                "bank": "OTHER",
            },
        )
        self.client.post(counter_url, "action=code&code=BARB", content_type="text/xml")
        self.client.post(
            counter_url, "action=add_product&product_id=4", content_type="text/xml"
        )
        self.client.post(
            counter_url, "action=del_product&product_id=4", content_type="text/xml"
        )
        self.client.post(
            counter_url, "action=code&code=2xdeco", content_type="text/xml"
        )
        self.client.post(
            counter_url, "action=code&code=1xbarb", content_type="text/xml"
        )
        response = self.client.post(
            counter_url, "action=code&code=fin", content_type="text/xml"
        )

        response_get = self.client.get(response.get("location"))
        response_content = response_get.content.decode("utf-8")
        assert "2 x Barbar" in str(response_content)
        assert "2 x Déconsigne Eco-cup" in str(response_content)
        assert "<p>Client : Richard Batsbak - Nouveau montant : 3.60" in str(
            response_content
        )

        self.client.post(
            reverse("counter:login", kwargs={"counter_id": self.mde.id}),
            {"username": self.sli.username, "password": "plop"},
        )

        response = self.client.post(
            counter_url,
            {
                "action": "refill",
                "amount": "5",
                "payment_method": "CASH",
                "bank": "OTHER",
            },
        )
        assert response.status_code == 200

        self.client.post(
            reverse("counter:login", kwargs={"counter_id": self.foyer.id}),
            {"username": self.krophil.username, "password": "plop"},
        )

        response = self.client.get(
            reverse("counter:details", kwargs={"counter_id": self.foyer.id})
        )

        counter_token = re.search(
            r'name="counter_token" value="([^"]*)"', str(response.content)
        ).group(1)

        response = self.client.post(
            reverse("counter:details", kwargs={"counter_id": self.foyer.id}),
            {"code": self.richard.customer.account_id, "counter_token": counter_token},
        )
        counter_url = response.get("location")

        response = self.client.post(
            counter_url,
            {
                "action": "refill",
                "amount": "5",
                "payment_method": "CASH",
                "bank": "OTHER",
            },
        )
        assert response.status_code == 200

    def test_annotate_has_barman_queryset(self):
        """Test if the custom queryset method `annotate_has_barman` works as intended."""
        self.sli.counters.set([self.foyer, self.mde])
        counters = Counter.objects.annotate_has_barman(self.sli)
        for counter in counters:
            if counter.name in ("Foyer", "MDE"):
                assert counter.has_annotated_barman
            else:
                assert not counter.has_annotated_barman


class TestCounterStats(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.counter = Counter.objects.get(id=2)
        cls.krophil = User.objects.get(username="krophil")
        cls.skia = User.objects.get(username="skia")
        cls.sli = User.objects.get(username="sli")
        cls.root = User.objects.get(username="root")
        cls.subscriber = User.objects.get(username="subscriber")
        cls.old_subscriber = User.objects.get(username="old_subscriber")
        cls.counter.sellers.add(cls.sli, cls.root, cls.skia, cls.krophil)

        barbar = Product.objects.get(code="BARB")

        # remove everything to make sure the fixtures bring no side effect
        Permanency.objects.all().delete()
        Selling.objects.all().delete()

        now = timezone.now()
        # total of sli : 5 hours
        Permanency.objects.create(
            user=cls.sli, start=now, end=now + timedelta(hours=1), counter=cls.counter
        )
        Permanency.objects.create(
            user=cls.sli,
            start=now + timedelta(hours=4),
            end=now + timedelta(hours=6),
            counter=cls.counter,
        )
        Permanency.objects.create(
            user=cls.sli,
            start=now + timedelta(hours=7),
            end=now + timedelta(hours=9),
            counter=cls.counter,
        )

        # total of skia : 16 days, 2 hours, 35 minutes and 54 seconds
        Permanency.objects.create(
            user=cls.skia, start=now, end=now + timedelta(hours=1), counter=cls.counter
        )
        Permanency.objects.create(
            user=cls.skia,
            start=now + timedelta(days=4, hours=1),
            end=now + timedelta(days=20, hours=2, minutes=35, seconds=54),
            counter=cls.counter,
        )

        # total of root : 1 hour + 20 hours (but the 20 hours were on last year)
        Permanency.objects.create(
            user=cls.root,
            start=now + timedelta(days=5),
            end=now + timedelta(days=5, hours=1),
            counter=cls.counter,
        )
        Permanency.objects.create(
            user=cls.root,
            start=now - timedelta(days=300, hours=20),
            end=now - timedelta(days=300),
            counter=cls.counter,
        )

        # total of krophil : 0 hour
        s = Selling(
            label=barbar.name,
            product=barbar,
            club=Club.objects.get(name=settings.SITH_MAIN_CLUB["name"]),
            counter=cls.counter,
            unit_price=2,
            seller=cls.skia,
        )

        krophil_customer = Customer.get_or_create(cls.krophil)[0]
        sli_customer = Customer.get_or_create(cls.sli)[0]
        skia_customer = Customer.get_or_create(cls.skia)[0]
        root_customer = Customer.get_or_create(cls.root)[0]

        # moderate drinker. Total : 100 €
        s.quantity = 50
        s.customer = krophil_customer
        s.save(allow_negative=True)

        # Sli is a drunkard. Total : 2000 €
        s.quantity = 100
        s.customer = sli_customer
        for _ in range(10):
            # little trick to make sure the instance is duplicated in db
            s.pk = None
            s.save(allow_negative=True)  # save ten different sales

        # Skia is a heavy drinker too. Total : 1000 €
        s.customer = skia_customer
        for _ in range(5):
            s.pk = None
            s.save(allow_negative=True)

        # Root is quite an abstemious one. Total : 2 €
        s.pk = None
        s.quantity = 1
        s.customer = root_customer
        s.save(allow_negative=True)

    def test_not_authenticated_user_fail(self):
        # Test with not login user
        response = self.client.get(reverse("counter:stats", args=[self.counter.id]))
        assert response.status_code == 403

    def test_unauthorized_user_fails(self):
        self.client.force_login(User.objects.get(username="public"))
        response = self.client.get(reverse("counter:stats", args=[self.counter.id]))
        assert response.status_code == 403

    def test_get_total_sales(self):
        """Test the result of the Counter.get_total_sales() method."""
        assert self.counter.get_total_sales() == 3102

    def test_top_barmen(self):
        """Test the result of Counter.get_top_barmen() is correct."""
        users = [self.skia, self.root, self.sli]
        perm_times = [
            timedelta(days=16, hours=2, minutes=35, seconds=54),
            timedelta(hours=21),
            timedelta(hours=5),
        ]
        assert list(self.counter.get_top_barmen()) == [
            {
                "user": user.id,
                "name": f"{user.first_name} {user.last_name}",
                "promo": user.promo,
                "nickname": user.nick_name,
                "perm_sum": perm_time,
            }
            for user, perm_time in zip(users, perm_times)
        ]

    def test_top_customer(self):
        """Test the result of Counter.get_top_customers() is correct."""
        users = [self.sli, self.skia, self.krophil, self.root]
        sale_amounts = [2000, 1000, 100, 2]
        assert list(self.counter.get_top_customers()) == [
            {
                "user": user.id,
                "name": f"{user.first_name} {user.last_name}",
                "promo": user.promo,
                "nickname": user.nick_name,
                "selling_sum": sale_amount,
            }
            for user, sale_amount in zip(users, sale_amounts)
        ]


class TestBarmanConnection(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.krophil = User.objects.get(username="krophil")
        cls.skia = User.objects.get(username="skia")
        cls.skia.customer.account = 800
        cls.krophil.customer.save()
        cls.skia.customer.save()

        cls.counter = Counter.objects.get(id=2)

    def test_barman_granted(self):
        self.client.post(
            reverse("counter:login", args=[self.counter.id]),
            {"username": "krophil", "password": "plop"},
        )
        response = self.client.get(reverse("counter:details", args=[self.counter.id]))

        assert "<p>Entrez un code client : </p>" in str(response.content)

    def test_counters_list_barmen(self):
        self.client.post(
            reverse("counter:login", args=[self.counter.id]),
            {"username": "krophil", "password": "plop"},
        )
        response = self.client.get(reverse("counter:activity", args=[self.counter.id]))

        assert '<li><a href="/user/10/">Kro Phil&#39;</a></li>' in str(response.content)

    def test_barman_denied(self):
        self.client.post(
            reverse("counter:login", args=[self.counter.id]),
            {"username": "skia", "password": "plop"},
        )
        response_get = self.client.get(
            reverse("counter:details", args=[self.counter.id])
        )

        assert "<p>Merci de vous identifier</p>" in str(response_get.content)

    def test_counters_list_no_barmen(self):
        self.client.post(
            reverse("counter:login", args=[self.counter.id]),
            {"username": "krophil", "password": "plop"},
        )
        response = self.client.get(reverse("counter:activity", args=[self.counter.id]))

        assert '<li><a href="/user/1/">S&#39; Kia</a></li>' not in str(response.content)


@pytest.mark.django_db
def test_barman_timeout():
    """Test that barmen timeout is well managed."""
    bar = baker.make(Counter, type="BAR")
    user = baker.make(User)
    bar.sellers.add(user)
    baker.make(Permanency, counter=bar, user=user, start=now())

    qs = Counter.objects.annotate_is_open().filter(pk=bar.pk)

    bar = qs[0]
    assert bar.is_open
    assert bar.barmen_list == [user]
    qs.handle_timeout()  # handling timeout before the actual timeout should be no-op
    assert qs[0].is_open
    with freeze_time() as frozen_time:
        frozen_time.tick(timedelta(minutes=settings.SITH_BARMAN_TIMEOUT + 1))
        qs.handle_timeout()
        bar = qs[0]
        assert not bar.is_open
        assert bar.barmen_list == []


class TestClubCounterClickAccess(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.counter = baker.make(Counter, type="OFFICE")
        cls.customer = subscriber_user.make()
        cls.counter_url = reverse(
            "counter:details", kwargs={"counter_id": cls.counter.id}
        )
        cls.click_url = reverse(
            "counter:click",
            kwargs={"counter_id": cls.counter.id, "user_id": cls.customer.id},
        )

        cls.user = subscriber_user.make()

    def setUp(self):
        cache.clear()

    def test_anonymous(self):
        res = self.client.get(self.click_url)
        assert res.status_code == 403

    def test_logged_in_without_rights(self):
        self.client.force_login(self.user)
        res = self.client.get(self.click_url)
        assert res.status_code == 403
        # being a member of the club, without being in the board, isn't enough
        baker.make(Membership, club=self.counter.club, user=self.user, role=1)
        res = self.client.get(self.click_url)
        assert res.status_code == 403

    def test_board_member(self):
        baker.make(Membership, club=self.counter.club, user=self.user, role=3)
        self.client.force_login(self.user)
        res = self.client.get(self.click_url)
        assert res.status_code == 200

    def test_barman(self):
        self.counter.sellers.add(self.user)
        self.client.force_login(self.user)
        res = self.client.get(self.click_url)
        assert res.status_code == 200