from datetime import timedelta
from django.db.models import Q
from django.test import TestCase
from django.urls import reverse

from apps.lyric.models import Token, User
from apps.epic.models import GateSlot, Room, RoomInvite, debit_token


class RoomCreationTest(TestCase):
    def test_creating_a_room_generates_six_gate_slots(self):
        owner = User.objects.create(email="founder@example.com")
        room = Room.objects.create(name="Test Room", owner=owner)
        self.assertEqual(GateSlot.objects.filter(room=room).count(), 6)


class DebitTokenTest(TestCase):
    def setUp(self):
        self.owner = User.objects.create(email="founder@example.com")
        self.room = Room.objects.create(
            name="Test Room",
            owner=self.owner,
            renewal_period=timedelta(days=7)
        )
        self.slot = self.room.gate_slots.get(slot_number=1)

    def test_debit_free_token_consumes_token_and_fills_slot(self):
        free_token = Token.objects.get(user=self.owner, token_type=Token.FREE)
        debit_token(self.owner, self.slot, free_token)
        self.assertFalse(Token.objects.filter(pk=free_token.pk).exists())
        self.slot.refresh_from_db()
        self.assertEqual(self.slot.status, GateSlot.FILLED)
        self.assertEqual(self.slot.gamer, self.owner)

    def test_debit_coin_does_not_consume_token(self):
        coin_token = Token.objects.get(user=self.owner, token_type=Token.COIN)
        debit_token(self.owner, self.slot, coin_token)
        self.assertTrue(Token.objects.filter(pk=coin_token.pk).exists())
        self.slot.refresh_from_db()
        self.assertEqual(self.slot.status, GateSlot.FILLED)
        self.assertEqual(self.slot.gamer, self.owner)

    def test_debit_fills_last_slot_and_opens_gate(self):
        for i in range(2, 7):
            gamer = User.objects.create(email=f"g{i}@test.io")
            slot = self.room.gate_slots.get(slot_number=i)
            slot.gamer = gamer
            slot.status = GateSlot.FILLED
            slot.save()
        free_token = Token.objects.get(user=self.owner, token_type=Token.FREE)
        debit_token(self.owner, self.slot, free_token)
        self.room.refresh_from_db()
        self.assertEqual(self.room.gate_status, Room.OPEN)


class CoinTokenInUseTest(TestCase):
    def setUp(self):
        self.owner = User.objects.create(email="founder@example.com")
        self.room = Room.objects.create(
            name="Dragon's Den",
            owner=self.owner,
            renewal_period=timedelta(days=7),
        )
        self.slot = self.room.gate_slots.get(slot_number=1)
        self.coin = Token.objects.get(user=self.owner, token_type=Token.COIN)
        debit_token(self.owner, self.slot, self.coin)
        self.coin.refresh_from_db()

    def test_coin_tooltip_expiry_shows_next_ready_date(self):
        expected_date = self.coin.next_ready_at.strftime("%Y-%m-%d")
        self.assertIn(expected_date, self.coin.tooltip_expiry())

    def test_coin_tooltip_room_html_contains_anchor(self):
        room_url = reverse("epic:gatekeeper", kwargs={"room_id": self.room.id})
        html = self.coin.tooltip_room_html()
        self.assertIn(f'href="{room_url}"', html)
        self.assertIn(self.room.name, html)


class RoomInviteTest(TestCase):
    def setUp(self):
        self.founder = User.objects.create(email="founder@example.com")
        self.room = Room.objects.create(name="Dragon's Den", owner=self.founder)

    def test_founder_can_invite_by_email(self):
        invite = RoomInvite.objects.create(
            room=self.room,
            inviter=self.founder,
            invitee_email="friend@example.com",
        )
        self.assertEqual(invite.status, RoomInvite.PENDING)

    def test_invited_room_appears_in_my_games_queryset(self):
        friend = User.objects.create(email="friend@example.com")
        RoomInvite.objects.create(
            room=self.room,
            inviter=self.founder,
            invitee_email=friend.email,
        )
        rooms = Room.objects.filter(
            Q(owner=friend) |
            Q(gate_slots__gamer=friend) |
            Q(invites__invitee_email=friend.email, invites__status=RoomInvite.PENDING)
        ).distinct()
        self.assertIn(self.room, rooms)