import datetime
import re
import time

from django.utils import timezone
from selenium.webdriver.common.by import By

from .base import FunctionalTest
from apps.applets.models import Applet
from apps.drama.models import GameEvent, record
from apps.epic.models import Room, GateSlot
from apps.lyric.models import User


class BillboardScrollTest(FunctionalTest):
    """
    FT: game actions in room.html are logged to the drama stream, and the
    founder can navigate from any page to /billboard/ via the footer
    fa-scroll icon, select a room, and read the provenance scroll.

    Events are seeded via ORM — the IT suite covers the recording side;
    here we test the user-visible navigation and prose display.
    """

    def setUp(self):
        super().setUp()
        for slug, name, cols, rows in [
            ("my-scrolls",         "My Scrolls",         4, 3),
            ("my-buddies",         "My Buddies",         4, 3),
            ("most-recent-scroll", "Most Recent Scroll", 8, 6),
        ]:
            Applet.objects.get_or_create(
                slug=slug,
                defaults={"name": name, "grid_cols": cols, "grid_rows": rows, "context": "billboard"},
            )
        self.founder = User.objects.create(email="founder@test.io")
        self.other = User.objects.create(email="other@test.io")
        self.room = Room.objects.create(name="Blissful Ignorance", owner=self.founder)
        # Simulate two gate fills — one by founder, one by the other gamer
        record(
            self.room, GameEvent.SLOT_FILLED, actor=self.founder,
            slot_number=1, token_type="coin",
            token_display="Coin-on-a-String", renewal_days=7,
        )
        record(
            self.room, GameEvent.SLOT_FILLED, actor=self.other,
            slot_number=2, token_type="Free",
            token_display="Free Token", renewal_days=7,
        )
        # Simulate founder selecting a role
        record(
            self.room, GameEvent.ROLE_SELECTED, actor=self.founder,
            role="PC", slot_number=1, role_display="Player",
        )

    # ------------------------------------------------------------------ #
    # Test 1 — footer icon navigates to billboard, rooms listed           #
    # ------------------------------------------------------------------ #

    def test_footer_scroll_icon_leads_to_billboard_with_rooms(self):
        # Founder logs in and lands on the dashboard
        self.create_pre_authenticated_session("founder@test.io")
        self.browser.get(self.live_server_url + "/")

        # Footer contains a scroll icon link pointing to /billboard/
        scroll_link = self.wait_for(
            lambda: self.browser.find_element(By.CSS_SELECTOR, "#id_footer_nav a[href='/billboard/']")
        )
        scroll_link.click()

        # Billboard page lists the founder's room
        self.wait_for(
            lambda: self.assertIn("/billboard/", self.browser.current_url)
        )
        body = self.browser.find_element(By.TAG_NAME, "body")
        self.assertIn("Blissful Ignorance", body.text)

    # ------------------------------------------------------------------ #
    # Test 2 — scroll page renders human-readable prose                   #
    # ------------------------------------------------------------------ #

    def test_scroll_shows_human_readable_event_log(self):
        self.create_pre_authenticated_session("founder@test.io")
        self.browser.get(self.live_server_url + "/billboard/")

        # Click the room link to reach the scroll
        self.wait_for(
            lambda: self.browser.find_element(By.LINK_TEXT, "Blissful Ignorance")
        ).click()

        self.wait_for(
            lambda: self.assertIn("/scroll/", self.browser.current_url)
        )

        scroll = self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_drama_scroll")
        )

        # Gate fill events are rendered as prose
        self.assertIn("deposits a Coin-on-a-String for slot 1 (expires in 7 days).", scroll.text)
        self.assertIn("deposits a Free Token for slot 2 (expires in 7 days).", scroll.text)

        # Role selection event is rendered as prose
        self.assertIn("assumes 1st Chair", scroll.text)

    # ------------------------------------------------------------------ #
    # Test 3 — current user's events are right-aligned; others' are left  #
    # ------------------------------------------------------------------ #

    def test_scroll_aligns_own_events_right_and_others_left(self):
        self.create_pre_authenticated_session("founder@test.io")
        self.browser.get(self.live_server_url + "/billboard/")
        self.wait_for(
            lambda: self.browser.find_element(By.LINK_TEXT, "Blissful Ignorance")
        ).click()
        self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_drama_scroll")
        )

        mine_events = self.browser.find_elements(By.CSS_SELECTOR, ".drama-event.mine")
        theirs_events = self.browser.find_elements(By.CSS_SELECTOR, ".drama-event.theirs")

        # Founder has 2 events (slot fill + role select); other gamer has 1
        self.assertEqual(len(mine_events), 2)
        self.assertEqual(len(theirs_events), 1)

        # The other gamer's event mentions their display name
        self.assertIn("other", theirs_events[0].text)


class BillscrollPositionTest(FunctionalTest):
    """
    FT: the user's scroll position in a billscroll is saved to the server
    and restored when they return to the same scroll from any device/session.
    """

    def setUp(self):
        super().setUp()
        self.founder = User.objects.create(email="founder@scrollpos.io")
        self.room = Room.objects.create(name="Persistent Chamber", owner=self.founder)
        # Enough events to make #id_drama_scroll scrollable
        for i in range(20):
            record(
                self.room, GameEvent.SLOT_FILLED, actor=self.founder,
                slot_number=(i % 6) + 1, token_type="coin",
                token_display=f"Coin-{i}", renewal_days=7,
            )

    def test_scroll_position_persists_across_sessions(self):
        # 1. Log in and navigate to the room's billscroll
        self.create_pre_authenticated_session("founder@scrollpos.io")
        self.browser.get(
            self.live_server_url + f"/billboard/room/{self.room.id}/scroll/"
        )
        scroll_el = self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_drama_scroll")
        )

        # 2. Force the element scrollable (CSS not served by StaticLiveServerTestCase),
        #    set position, dispatch scroll event, and capture the position value the
        #    JS listener will save — all in one synchronous script so the layout
        #    snapshot is identical to what the scroll handler sees.
        scroll_top = 100
        saved_pos = self.browser.execute_script("""
            var el = arguments[0];
            var remPx = parseFloat(getComputedStyle(document.documentElement).fontSize);
            el.style.overflow = 'auto';
            el.style.height = '150px';
            el.scrollTop = arguments[1];
            var pos = Math.round(el.scrollTop + el.clientHeight + remPx * 2.5);
            el.dispatchEvent(new Event('scroll'));
            return pos;
        """, scroll_el, scroll_top)

        # 3. Wait for debounce (800ms) + fetch to complete
        time.sleep(3)

        # 4. Navigate away and back in a fresh session
        self.browser.get(self.live_server_url + "/billboard/")
        self.create_pre_authenticated_session("founder@scrollpos.io")
        self.browser.get(
            self.live_server_url + f"/billboard/room/{self.room.id}/scroll/"
        )

        # 5. The saved position is reflected in the page's data attribute
        scroll_el = self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_drama_scroll")
        )
        restored = int(scroll_el.get_attribute("data-scroll-position"))
        self.assertEqual(restored, saved_pos)


class BillboardAppletsTest(FunctionalTest):
    """
    FT: billboard page renders three applets in the grid — My Scrolls,
    My Buddies, and Most Recent Scroll — with a functioning gear menu.
    """

    def setUp(self):
        super().setUp()
        self.browser.set_window_size(800, 1200)
        self.founder = User.objects.create(email="founder@test.io")
        self.room = Room.objects.create(name="Arcane Assembly", owner=self.founder)
        for slug, name, cols, rows in [
            ("my-scrolls",         "My Scrolls",         4, 3),
            ("my-buddies",         "My Buddies",         4, 3),
            ("most-recent-scroll", "Most Recent Scroll", 8, 6),
        ]:
            Applet.objects.get_or_create(
                slug=slug,
                defaults={"name": name, "grid_cols": cols, "grid_rows": rows, "context": "billboard"},
            )

    def test_billboard_shows_three_applets(self):
        # 1. Log in, navigate to billboard
        self.create_pre_authenticated_session("founder@test.io")
        self.browser.get(self.live_server_url + "/billboard/")
        # 2. Assert all three applet sections present
        self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_applet_my_scrolls")
        )
        self.browser.find_element(By.ID, "id_applet_my_buddies")
        self.browser.find_element(By.ID, "id_applet_most_recent_scroll")

    def test_billboard_my_scrolls_lists_rooms(self):
        # 1. Log in, navigate to billboard
        self.create_pre_authenticated_session("founder@test.io")
        self.browser.get(self.live_server_url + "/billboard/")
        # 2. My Scrolls applet contains a link to the room's scroll
        self.wait_for(
            lambda: self.assertIn(
                "Arcane Assembly",
                self.browser.find_element(By.ID, "id_applet_my_scrolls").text,
            )
        )

    def test_billboard_gear_btn_opens_applet_menu(self):
        # 1. Log in, navigate to billboard
        self.create_pre_authenticated_session("founder@test.io")
        self.browser.get(self.live_server_url + "/billboard/")
        # 2. Gear button is visible
        gear_btn = self.wait_for(
            lambda: self.browser.find_element(By.CSS_SELECTOR, ".billboard-page .gear-btn")
        )
        # 3. Menu is hidden before click
        menu = self.browser.find_element(By.ID, "id_billboard_applet_menu")
        self.assertFalse(menu.is_displayed())
        # 4. Clicking gear opens the menu (JS click bypasses kit-bag overlap in headless)
        self.browser.execute_script("arguments[0].click()", gear_btn)
        self.wait_for_slow(lambda: self.assertTrue(menu.is_displayed()))

    def test_toggling_applets_keeps_content_and_persists_per_applet(self):
        # Seed an event so Most Recent Scroll renders prose, not the empty fallback
        record(
            self.room, GameEvent.SLOT_FILLED, actor=self.founder,
            slot_number=1, token_type="coin",
            token_display="Coin-on-a-String", renewal_days=7,
        )

        self.create_pre_authenticated_session("founder@test.io")
        self.browser.get(self.live_server_url + "/billboard/")

        # All three applets visible; Most Recent Scroll shows event prose, My Scrolls shows the room
        self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_applet_most_recent_scroll")
        )
        most_recent_scroll = self.browser.find_element(By.ID, "id_applet_most_recent_scroll")
        self.assertIn("Coin-on-a-String", most_recent_scroll.text)
        self.assertIn(
            "Arcane Assembly",
            self.browser.find_element(By.ID, "id_applet_my_scrolls").text,
        )

        # Open gear, uncheck Contacts, click OK
        gear = self.browser.find_element(By.CSS_SELECTOR, ".billboard-page .gear-btn")
        self.browser.execute_script("arguments[0].click()", gear)
        menu = self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_billboard_applet_menu")
        )
        contacts_cb = menu.find_element(
            By.CSS_SELECTOR, "input[value='my-buddies']"
        )
        self.browser.execute_script("arguments[0].click()", contacts_cb)
        menu.find_element(By.CSS_SELECTOR, "button[type='submit']").click()

        # Contacts is hidden; Most Recent Scroll + My Scrolls keep their content (bug #2)
        self.wait_for(
            lambda: self.assertEqual(
                self.browser.find_elements(By.ID, "id_applet_my_buddies"),
                [],
            )
        )
        most_recent_scroll = self.browser.find_element(By.ID, "id_applet_most_recent_scroll")
        self.assertIn("Coin-on-a-String", most_recent_scroll.text)
        self.assertIn(
            "Arcane Assembly",
            self.browser.find_element(By.ID, "id_applet_my_scrolls").text,
        )

        # Second toggle: hide Most Recent Scroll. Contacts must NOT come back (bug #1)
        gear = self.browser.find_element(By.CSS_SELECTOR, ".billboard-page .gear-btn")
        self.browser.execute_script("arguments[0].click()", gear)
        menu = self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_billboard_applet_menu")
        )
        # The freshly-rendered menu must reflect DB state (Contacts unchecked)
        contacts_cb = menu.find_element(
            By.CSS_SELECTOR, "input[value='my-buddies']"
        )
        self.assertFalse(contacts_cb.is_selected())
        most_recent_scroll_cb = menu.find_element(
            By.CSS_SELECTOR, "input[value='most-recent-scroll']"
        )
        self.browser.execute_script("arguments[0].click()", most_recent_scroll_cb)
        menu.find_element(By.CSS_SELECTOR, "button[type='submit']").click()

        # Most Recent Scroll gone; Contacts still hidden (the stale-form bug would re-show it)
        self.wait_for(
            lambda: self.assertEqual(
                self.browser.find_elements(By.ID, "id_applet_most_recent_scroll"),
                [],
            )
        )
        self.assertEqual(
            self.browser.find_elements(By.ID, "id_applet_my_buddies"),
            [],
        )

        # And after a hard refresh both stay hidden, menu reflects DB
        self.browser.refresh()
        self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_applet_my_scrolls")
        )
        self.assertEqual(
            self.browser.find_elements(By.ID, "id_applet_my_buddies"),
            [],
        )
        self.assertEqual(
            self.browser.find_elements(By.ID, "id_applet_most_recent_scroll"),
            [],
        )


class BillscrollAppletsTest(FunctionalTest):
    """
    FT: billscroll page renders as a single full-width applet that fills
    the viewport aperture and contains the room's drama events.
    """

    def setUp(self):
        super().setUp()
        self.founder = User.objects.create(email="founder@billtest.io")
        self.room = Room.objects.create(name="Spectral Council", owner=self.founder)
        record(
            self.room, GameEvent.SLOT_FILLED, actor=self.founder,
            slot_number=1, token_type="coin",
            token_display="Coin-on-a-String", renewal_days=7,
        )

    def test_billscroll_shows_full_width_applet(self):
        # 1. Log in, navigate to the room's scroll
        self.create_pre_authenticated_session("founder@billtest.io")
        self.browser.get(
            self.live_server_url + f"/billboard/room/{self.room.id}/scroll/"
        )
        # 2. The full-width applet section is present
        self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_applet_scroll")
        )

    def test_billscroll_applet_contains_drama_events(self):
        # 1. Log in, navigate to the room's scroll
        self.create_pre_authenticated_session("founder@billtest.io")
        self.browser.get(
            self.live_server_url + f"/billboard/room/{self.room.id}/scroll/"
        )
        # 2. Drama scroll is inside the applet and shows the event
        scroll = self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_drama_scroll")
        )
        self.assertIn("Coin-on-a-String", scroll.text)


class BillscrollEntryLayoutTest(FunctionalTest):
    """
    FT: each drama entry renders as a 90/10 row — event body at 90%,
    relative timestamp at 10%; timestamp text format varies with age.
    """

    def setUp(self):
        super().setUp()
        self.founder = User.objects.create(email="founder@layout.io")
        self.room = Room.objects.create(name="Layout Chamber", owner=self.founder)
        # A fresh (< 24 h) event — timestamp is auto_now_add so always recent
        record(
            self.room, GameEvent.SLOT_FILLED, actor=self.founder,
            slot_number=1, token_type="coin",
            token_display="Fresh Coin", renewal_days=7,
        )
        # An old (> 1 year) event — backdate via queryset update to bypass auto_now_add
        old = record(
            self.room, GameEvent.SLOT_FILLED, actor=self.founder,
            slot_number=2, token_type="coin",
            token_display="Ancient Coin", renewal_days=7,
        )
        GameEvent.objects.filter(pk=old.pk).update(
            timestamp=timezone.now() - datetime.timedelta(days=400)
        )

    def _go_to_scroll(self):
        self.create_pre_authenticated_session("founder@layout.io")
        self.browser.get(
            self.live_server_url + f"/billboard/room/{self.room.id}/scroll/"
        )
        return self.wait_for(
            lambda: self.browser.find_elements(By.CSS_SELECTOR, ".drama-event")
        )

    # ------------------------------------------------------------------ #
    # Test 1 — each entry has a body column and a time column             #
    # ------------------------------------------------------------------ #

    def test_each_drama_entry_has_body_and_time_columns(self):
        events = self._go_to_scroll()
        self.assertEqual(len(events), 2)
        for event_el in events:
            event_el.find_element(By.CSS_SELECTOR, ".drama-event-body")
            event_el.find_element(By.CSS_SELECTOR, ".drama-event-time")

    # ------------------------------------------------------------------ #
    # Test 2 — recent entry timestamp shows HH:MM a.m./p.m.              #
    # ------------------------------------------------------------------ #

    def test_recent_event_shows_time_format(self):
        events = self._go_to_scroll()
        # events[0] is the backdated record (oldest); events[1] is fresh
        recent_ts = events[1].find_element(By.CSS_SELECTOR, ".drama-event-time")
        self.assertRegex(recent_ts.text, r"\d+:\d+\s+[ap]\.m\.")

    # ------------------------------------------------------------------ #
    # Test 3 — entry > 1 year old shows DD Mon YYYY                       #
    # ------------------------------------------------------------------ #

    def test_old_event_shows_date_with_year(self):
        events = self._go_to_scroll()
        # events[0] is the backdated record (oldest first, ascending order)
        old_ts = events[0].find_element(By.CSS_SELECTOR, ".drama-event-time")
        self.assertRegex(old_ts.text, r"\d{2}\s+[A-Z][a-z]{2}\s+\d{4}")


class BillscrollGearMenuTest(FunctionalTest):
    """
    FT: the billscroll page has a gear menu that filters events by label.

    Frame  = all regular (non-struck) drama entries.
    Redact = struck-through (retracted) entries, e.g. a WAIT NVM after TAKE SIG.

    Scenario (one gamer, Role + Sig events):
      1. Both labels checked by default — all events visible.
      2. Uncheck Redact → OK: struck entries disappear.
      3. Recheck Redact + uncheck Frame → OK: regular entries gone; struck
         entries visible (but still render struck-through — they remain "redacted"
         in the narrative sense).
      4. Recheck Frame → OK: all entries return.
    """

    def setUp(self):
        super().setUp()
        self.founder = User.objects.create(email="founder@geartest.io")
        self.room = Room.objects.create(name="Gear Filter Room", owner=self.founder)
        # Two Frame events — ROLE_SELECTED, non-struck
        record(self.room, GameEvent.ROLE_SELECTED, actor=self.founder,
               role="PC", slot_number=1, role_display="Player")
        record(self.room, GameEvent.ROLE_SELECTED, actor=self.founder,
               role="NC", slot_number=2, role_display="Narrator")
        # Two Redact events — SIG_READY with retracted=True → event.struck is True
        sig1 = record(self.room, GameEvent.SIG_READY, actor=self.founder,
                      card_name="The Wanderer", corner_rank="0", suit_icon="")
        sig1.data["retracted"] = True
        sig1.save(update_fields=["data"])
        sig2 = record(self.room, GameEvent.SIG_READY, actor=self.founder,
                      card_name="Maid of Brands", corner_rank="M",
                      suit_icon="fa-wand-sparkles")
        sig2.data["retracted"] = True
        sig2.save(update_fields=["data"])

    def _go_to_scroll(self):
        self.create_pre_authenticated_session("founder@geartest.io")
        self.browser.get(
            self.live_server_url + f"/billboard/room/{self.room.id}/scroll/"
        )
        self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_drama_scroll")
        )

    def _open_gear(self):
        """Click the gear btn and return the now-visible menu element."""
        gear = self.wait_for(
            lambda: self.browser.find_element(
                By.CSS_SELECTOR,
                ".gear-btn[data-menu-target='id_billscroll_menu']"
            )
        )
        self.browser.execute_script("arguments[0].click()", gear)
        return self.wait_for(
            lambda: self.browser.find_element(By.ID, "id_billscroll_menu")
        )

    def _visible_events(self, label):
        """Count displayed .drama-event elements with the given data-label."""
        els = self.browser.find_elements(
            By.CSS_SELECTOR, f".drama-event[data-label='{label}']"
        )
        return sum(1 for e in els if e.is_displayed())

    # ------------------------------------------------------------------ #
    # Step 1 — gear menu opens; both labels present and pre-checked        #
    # ------------------------------------------------------------------ #

    def test_gear_menu_shows_frame_and_redact_checkboxes(self):
        self._go_to_scroll()
        menu = self._open_gear()
        self.assertTrue(menu.is_displayed())
        frame_cb  = menu.find_element(By.CSS_SELECTOR, "input[value='frame']")
        redact_cb = menu.find_element(By.CSS_SELECTOR, "input[value='redact']")
        self.assertTrue(frame_cb.is_selected())
        self.assertTrue(redact_cb.is_selected())
        self.assertIn("Frame",  menu.text)
        self.assertIn("Redact", menu.text)

    # ------------------------------------------------------------------ #
    # Steps 2 – 4 — filter flow                                           #
    # ------------------------------------------------------------------ #

    def test_gear_menu_filter_flow(self):
        self._go_to_scroll()

        # Step 1: all 4 events visible (2 frame + 2 redact)
        self.assertEqual(self._visible_events("frame"),  2)
        self.assertEqual(self._visible_events("redact"), 2)

        # Step 2: uncheck Redact → OK → struck entries disappear
        menu = self._open_gear()
        menu.find_element(By.CSS_SELECTOR, "input[value='redact']").click()
        menu.find_element(By.CSS_SELECTOR, "button[type='submit']").click()
        self.wait_for(lambda: self.assertEqual(self._visible_events("redact"), 0))
        self.assertEqual(self._visible_events("frame"), 2)

        # Step 3: recheck Redact + uncheck Frame → OK
        # Redact events re-appear (still struck-through); Frame events gone.
        menu = self._open_gear()
        menu.find_element(By.CSS_SELECTOR, "input[value='redact']").click()  # recheck
        menu.find_element(By.CSS_SELECTOR, "input[value='frame']").click()   # uncheck
        menu.find_element(By.CSS_SELECTOR, "button[type='submit']").click()
        self.wait_for(lambda: self.assertEqual(self._visible_events("frame"), 0))
        self.assertEqual(self._visible_events("redact"), 2)
        # Struck-through entries still carry the .struck class (visually "gone" in narrative)
        redact_bodies = self.browser.find_elements(
            By.CSS_SELECTOR, ".drama-event[data-label='redact'] .drama-event-body"
        )
        self.assertTrue(all("struck" in b.get_attribute("class") for b in redact_bodies))

        # Step 4: recheck Frame → OK → all events return
        menu = self._open_gear()
        menu.find_element(By.CSS_SELECTOR, "input[value='frame']").click()   # recheck
        menu.find_element(By.CSS_SELECTOR, "button[type='submit']").click()
        self.wait_for(lambda: self.assertEqual(self._visible_events("frame"), 2))
        self.assertEqual(self._visible_events("redact"), 2)

    # ------------------------------------------------------------------ #
    # Persistence — filter survives a full page reload                    #
    # ------------------------------------------------------------------ #

    def test_filter_selection_persists_across_refresh(self):
        self._go_to_scroll()

        # Uncheck Redact → OK: struck entries disappear
        menu = self._open_gear()
        menu.find_element(By.CSS_SELECTOR, "input[value='redact']").click()
        menu.find_element(By.CSS_SELECTOR, "button[type='submit']").click()
        self.wait_for(lambda: self.assertEqual(self._visible_events("redact"), 0))

        # Hard reload — same URL, same session cookie
        self.browser.refresh()
        self.wait_for(lambda: self.browser.find_element(By.ID, "id_drama_scroll"))

        # Struck entries still absent after reload
        self.wait_for(lambda: self.assertEqual(self._visible_events("redact"), 0))
        self.assertEqual(self._visible_events("frame"), 2)

        # Gear menu still shows Redact unchecked
        menu = self._open_gear()
        redact_cb = menu.find_element(By.CSS_SELECTOR, "input[value='redact']")
        self.assertFalse(redact_cb.is_selected())