"""FTs for the Game Sign (a.k.a. My Significator) picker + billboard applet.

Sprint 4a of [[project-my-sea-roadmap]]. The picker lives at
`/billboard/my-sign/` — solo lift of the room's sig-select grid (no
countdown / polarity / multi-user). Selection persists on
User.significator + User.significator_reversed. "Significator" remains
the storage-layer term + room sig-select context; this billboard surface
is branded "Sign" / "Game Sign".
"""
from selenium.webdriver.common.by import By

from .base import FunctionalTest
from apps.applets.models import Applet
from apps.epic.models import personal_sig_cards
from apps.lyric.models import User


def _seed_my_sign_applet():
    Applet.objects.get_or_create(
        slug="my-sign",
        defaults={"name": "Game Sign", "context": "billboard",
                  "default_visible": True, "grid_cols": 4, "grid_rows": 6},
    )


class MySignPickerTest(FunctionalTest):
    """Happy-path picker: a user with the Earthman deck equipped lands at
    /billboard/my-sign/, picks a card, clicks SAVE SIGN, and sees the sig
    propagate to the Game Sign applet on /billboard/."""

    # StaticLiveServerTestCase → TransactionTestCase flushes DB between tests,
    # wiping migration-seeded DeckVariant + TarotCard rows. Without this flag,
    # personal_sig_cards(user) returns [] because the signal that auto-equips
    # Earthman can't find the deck. See [[feedback_transactiontestcase_flush]].
    serialized_rollback = True

    def setUp(self):
        super().setUp()
        _seed_my_sign_applet()
        # Seed the rest of the billboard applets so /billboard/ renders
        # without missing-applet errors.
        for slug, name in [
            ("my-scrolls", "My Scrolls"),
            ("my-buds", "My Buds"),
            ("most-recent-scroll", "Most Recent Scroll"),
        ]:
            Applet.objects.get_or_create(
                slug=slug, defaults={"name": name, "context": "billboard"},
            )
        self.email = "sig@test.io"
        self.gamer = User.objects.create(email=self.email)
        # post_save signal auto-equips Earthman. Picker uses personal_sig_cards
        # (= 16 middle arcana + Major 0 & 1, filtered by Note unlocks) so the
        # target must come from that subset, not the full deck.
        sig_pile = personal_sig_cards(self.gamer)
        self.target_card = sig_pile[0] if sig_pile else None
        self.assertIsNotNone(
            self.target_card,
            "personal_sig_cards(user) returned no cards — check Earthman seed"
            " + DeckVariant fixture availability in the FT DB.",
        )

    # ── Test 1 ───────────────────────────────────────────────────────────────

    def test_picker_renders_card_grid_from_equipped_deck(self):
        """GET /billboard/my-sign/ → page renders w. a card grid + the page
        wordmark reads "Game Sign", populated by the user's equipped_deck."""
        self.create_pre_authenticated_session(self.email)
        self.browser.get(self.live_server_url + "/billboard/my-sign/")
        # Wordmark. The h2 letter-splitter (base.html) wraps each character
        # in its own <span>, so Selenium's `.text` joins them w. newlines —
        # strip whitespace before the substring check.
        self.wait_for(
            lambda: self.assertIn(
                "GAMESIGN",
                "".join(
                    self.browser.find_element(By.CSS_SELECTOR, "h2").text.upper().split()
                ),
            )
        )
        # Target card present in the grid. The data-card-id selector itself
        # is the assertion — find_element raises if absent. Avoid asserting
        # against `.fan-corner-rank .text` (CSS hides it via font-size or
        # similar, so Selenium returns "").
        self.wait_for(
            lambda: self.browser.find_element(
                By.CSS_SELECTOR,
                f'.my-sign-deck-grid .sig-card[data-card-id="{self.target_card.id}"]',
            )
        )

    # ── Test 2 ───────────────────────────────────────────────────────────────

    def test_pick_card_then_save_persists_choice_and_shows_in_applet(self):
        """Click card → SAVE SIGN btn enables → click → DB updated → applet
        on /billboard/ shows the chosen card."""
        self.create_pre_authenticated_session(self.email)
        self.browser.get(self.live_server_url + "/billboard/my-sign/")

        # Click target card
        card_el = self.wait_for(
            lambda: self.browser.find_element(
                By.CSS_SELECTOR,
                f'.my-sign-deck-grid .sig-card[data-card-id="{self.target_card.id}"]',
            )
        )
        self.browser.execute_script("arguments[0].click()", card_el)

        # SAVE SIGN should be enabled now
        save_btn = self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_save_sign_btn")
        )
        self.wait_for(
            lambda: self.assertFalse(
                save_btn.get_attribute("disabled"),
                "SAVE SIGN should be enabled after card click",
            )
        )

        # Hidden card_id input should match the clicked card
        self.assertEqual(
            str(self.target_card.id),
            self.browser.find_element(By.ID, "id_save_sign_card_id").get_attribute("value"),
        )

        # Save → DB updated
        self.browser.execute_script("arguments[0].click()", save_btn)
        self.wait_for(
            lambda: self.gamer.refresh_from_db() or self.assertEqual(
                self.gamer.significator_id, self.target_card.id,
            )
        )

        # Navigate to /billboard/ → applet shows the saved card. Pin by
        # data-card-id (same reasoning as test 1 re: CSS-hidden corner rank).
        self.browser.get(self.live_server_url + "/billboard/")
        self.wait_for(
            lambda: self.browser.find_element(
                By.CSS_SELECTOR,
                f'#id_applet_my_sign .my-sign-applet-card[data-card-id="{self.target_card.id}"]',
            )
        )

    # ── Test 3 ───────────────────────────────────────────────────────────────

    def test_applet_renders_blank_state_when_no_sig_chosen(self):
        """Fresh user with no significator → applet shows the empty-state
        copy, no card."""
        self.create_pre_authenticated_session(self.email)
        self.browser.get(self.live_server_url + "/billboard/")
        empty = self.wait_for(
            lambda: self.browser.find_element(
                By.CSS_SELECTOR, "#id_applet_my_sign .my-sign-applet-empty"
            )
        )
        self.assertIn("No sign chosen", empty.text)
        self.assertEqual(
            len(self.browser.find_elements(
                By.CSS_SELECTOR, "#id_applet_my_sign .my-sign-applet-card"
            )),
            0,
        )