from django.test import TestCase
from django.db import IntegrityError

from apps.drama.models import GameEvent, ScrollPosition, record
from apps.epic.models import Room
from apps.lyric.models import User


class GameEventModelTest(TestCase):
    def setUp(self):
        self.user = User.objects.create(email="actor@test.io")
        self.room = Room.objects.create(name="Test Room", owner=self.user)

    def test_record_creates_game_event(self):
        event = record(self.room, GameEvent.SLOT_FILLED, actor=self.user, slot_number=1, token_type="tithe")
        self.assertEqual(GameEvent.objects.count(), 1)
        self.assertEqual(event.room, self.room)
        self.assertEqual(event.actor, self.user)
        self.assertEqual(event.verb, GameEvent.SLOT_FILLED)
        self.assertEqual(event.data, {"slot_number": 1, "token_type": "tithe"})

    def test_record_without_actor(self):
        event = record(self.room, GameEvent.ROOM_CREATED)
        self.assertIsNone(event.actor)
        self.assertEqual(event.verb, GameEvent.ROOM_CREATED)

    def test_events_ordered_by_timestamp(self):
        record(self.room, GameEvent.ROOM_CREATED)
        record(self.room, GameEvent.SLOT_RESERVED, actor=self.user)
        record(self.room, GameEvent.SLOT_FILLED, actor=self.user)
        verbs = list(GameEvent.objects.values_list("verb", flat=True))
        self.assertEqual(verbs, [
            GameEvent.ROOM_CREATED,
            GameEvent.SLOT_RESERVED,
            GameEvent.SLOT_FILLED,
        ])

    def test_str_includes_actor_and_verb(self):
        event = record(self.room, GameEvent.ROLE_SELECTED, actor=self.user, role="PC")
        self.assertIn("actor@test.io", str(event))
        self.assertIn(GameEvent.ROLE_SELECTED, str(event))

    # ── to_prose — ROLE_SELECTED ──────────────────────────────────────────

    def test_role_selected_prose_uses_ordinal_chair(self):
        for role, ordinal in [("PC", "1st"), ("NC", "2nd"), ("EC", "3rd"),
                               ("SC", "4th"), ("AC", "5th"), ("BC", "6th")]:
            with self.subTest(role=role):
                event = record(self.room, GameEvent.ROLE_SELECTED, actor=self.user,
                               role=role, role_display="")
                self.assertIn(f"assumes {ordinal} Chair", event.to_prose())

    def test_role_selected_prose_includes_role_name(self):
        event = record(self.room, GameEvent.ROLE_SELECTED, actor=self.user,
                       role="PC", role_display="Player")
        prose = event.to_prose()
        self.assertIn("Player", prose)
        self.assertIn("yo will start the game", prose)

    # ── to_prose — SIG_READY ─────────────────────────────────────────────

    def test_sig_ready_prose_embodies_card_with_rank_and_icon(self):
        event = record(self.room, GameEvent.SIG_READY, actor=self.user,
                       card_name="Maid of Brands", corner_rank="M",
                       suit_icon="fa-wand-sparkles")
        prose = event.to_prose()
        self.assertIn("embodies as yos Significator the Maid of Brands", prose)
        self.assertIn("(M", prose)
        self.assertIn("fa-wand-sparkles", prose)

    def test_sig_ready_prose_omits_icon_when_none(self):
        event = record(self.room, GameEvent.SIG_READY, actor=self.user,
                       card_name="The Wanderer", corner_rank="0", suit_icon="")
        prose = event.to_prose()
        self.assertIn("embodies as yos Significator the The Wanderer (0)", prose)
        self.assertNotIn("fa-", prose)

    def test_sig_ready_prose_degrades_without_corner_rank(self):
        # Old events recorded before this change have no corner_rank key
        event = record(self.room, GameEvent.SIG_READY, actor=self.user,
                       card_name="Maid of Brands")
        prose = event.to_prose()
        self.assertIn("embodies as yos Significator the Maid of Brands", prose)
        self.assertNotIn("(", prose)

    def test_str_without_actor_shows_system(self):
        event = record(self.room, GameEvent.ROLES_REVEALED)
        self.assertIn("system", str(event))


class ScrollPositionModelTest(TestCase):
    def setUp(self):
        self.user = User.objects.create(email="reader@test.io")
        self.room = Room.objects.create(name="Test Room", owner=self.user)

    def test_can_save_scroll_position(self):
        sp = ScrollPosition.objects.create(user=self.user, room=self.room, position=150)
        self.assertEqual(ScrollPosition.objects.count(), 1)
        self.assertEqual(sp.position, 150)

    def test_default_position_is_zero(self):
        sp = ScrollPosition.objects.create(user=self.user, room=self.room)
        self.assertEqual(sp.position, 0)

    def test_unique_per_user_and_room(self):
        ScrollPosition.objects.create(user=self.user, room=self.room, position=50)
        with self.assertRaises(IntegrityError):
            ScrollPosition.objects.create(user=self.user, room=self.room, position=100)

    def test_upsert_updates_existing_position(self):
        ScrollPosition.objects.create(user=self.user, room=self.room, position=50)
        ScrollPosition.objects.update_or_create(
            user=self.user, room=self.room,
            defaults={"position": 200},
        )
        self.assertEqual(ScrollPosition.objects.get(user=self.user, room=self.room).position, 200)