"""siska.tv (do 2026-09-22 siska.video), latest-vids browse scraper.

Historia: dawniej performer-driven search scraper (`?s=<q>`), ale siska zepsuła
wyszukiwarkę (zwraca latest niezależnie od query). Przerobione na BROWSE (latest
chronologicznie z listingu, patrz `_listing_url`), re-enabled 2026-06-20 (user fa4083a2).

Cały blok kafelka listingu ma komplet metadanych (zero detail-fetchy):
  <a title='<Tytuł>' href='https://siska.video/video.php?videoID=<n>'>
    <span class='th_video_duration'>40 : 27</span>
    <img data-src='https://siska.video/category/<Kat>/<id>.jpg'
         alt='<Performer> - <Tytuł> - <Studio>'>
→ tytuł, duration, miniatura, performer+studio (alt), kategoria (ścieżka thumba).

Playback: świeże filmy embedują playmogo (DoodStream clone) + luluvid (filemoon
family). Extractor `siskavideo` → `_embed_iframe.extract` oddaje type='hoster';
telefon resolwuje phone-side. page_url = video.php?videoID=<n>.
"""
from __future__ import annotations

import logging
import re

from app.connectors.base import (
    RawFingerprint,
    RawPerformer,
    RawPlaybackSource,
    RawScene,
    RawStudio,
    RawTag,
)
from app.connectors.direct_scrapers._browse_base import (
    BaseBrowseScraper,
    compute_thumbnail_phash,
)
from app.extractors import browser_get

log = logging.getLogger(__name__)

# Domena siska.video wygasla 2026-09-22 (NXDOMAIN), ten sam serwis dziala dalej pod
# siska.tv: te same numery videoID i sciezki miniatur. Adresy w bazie przepisane na
# siska.tv tego samego dnia. Kafelki przyjmujemy z obu domen i z www, ale zapisujemy
# zawsze jeden kanoniczny adres (_canonical), bo external_id sceny i unikalny klucz
# zrodla to sam adres; www.siska.video i siska.video dawaly 103 zdublowane zrodla.
_BASE = "https://siska.tv"
_HOST_RE = re.compile(r"^https://(?:www\.)?siska\.(?:tv|video)/", re.IGNORECASE)

# Kafelek: <a title='..' href='..videoID=N'>. Reszta pól w oknie po tym matchu.
# Strona nie escapuje apostrofu w atrybutach (title='Brenna's Mouths'), wiec wartosc
# konczy sie na apostrofie, po ktorym idzie nastepny atrybut, a nie na pierwszym.
_A_RE = re.compile(
    r"<a\s+title='(?P<title>[^<>]*?)'\s+"
    r"href='(?P<url>https://(?:www\.)?siska\.(?:tv|video)/video\.php\?videoID=\d+)'",
    re.IGNORECASE,
)
_DUR_RE = re.compile(r"th_video_duration'>\s*([\d]{1,2}(?:\s*:\s*[\d]{2}){1,2})\s*<")
_THUMB_RE = re.compile(r"data-src='([^']+\.(?:jpg|jpeg|webp|png))'", re.IGNORECASE)
_ALT_RE = re.compile(r"alt='([^<>]*?)'(?=\s+[\w-]+=|\s*/?>)")
_CAT_RE = re.compile(r"/category/([^/]+)/", re.IGNORECASE)


def _canonical(url: str) -> str:
    return _HOST_RE.sub(_BASE + "/", url)


def _parse_duration(text: str | None) -> int | None:
    """`40 : 27` → 2427 (MM:SS); `1 : 05 : 30` → H:MM:SS. None gdy brak."""
    if not text:
        return None
    parts = [p.strip() for p in text.split(":")]
    try:
        nums = [int(p) for p in parts]
    except ValueError:
        return None
    if len(nums) == 2:
        return nums[0] * 60 + nums[1]
    if len(nums) == 3:
        return nums[0] * 3600 + nums[1] * 60 + nums[2]
    return None


def _slugify(name: str) -> str:
    return re.sub(r"[^a-z0-9]+", "-", name.lower()).strip("-")


class SiskaScraper(BaseBrowseScraper):
    sitetag = "siskavideo"

    def _listing_url(self, page: int) -> str:
        # Na siska.tv `/page/<n>/` oddaje zawsze strone 1. Najnowsze po kolei (18 na
        # strone, videoID malejaco) sa pod `best_xvideos.php`, mimo nazwy.
        return f"{_BASE}/best_xvideos.php?page={page}"

    # crawl_page nadpisany → poniższe abstrakcje nieużywane, ale wymagane do instancji.
    def _extract_scene_urls(self, listing_html: str) -> list[str]:
        return [_canonical(m.group("url")) for m in _A_RE.finditer(listing_html)]

    def _parse_detail(self, scene_url: str, detail_html: str) -> RawScene | None:
        return None

    def crawl_page(self, page: int) -> list[RawScene] | None:
        url = self._listing_url(page)
        try:
            res = browser_get(url, timeout=self._timeout)
            html = res.text if hasattr(res, "text") else res
        except Exception as e:
            log.warning("siska browse listing fetch failed (page %d): %s", page, e)
            return None

        out: list[RawScene] = []
        seen: set[str] = set()
        for m in _A_RE.finditer(html):
            scene_url = _canonical(m.group("url"))
            if scene_url in seen:
                continue
            seen.add(scene_url)
            title = (m.group("title") or "").strip()
            if not title:
                continue
            window = html[m.end():m.end() + 700]

            dm = _DUR_RE.search(window)
            duration_sec = _parse_duration(dm.group(1) if dm else None)
            tm = _THUMB_RE.search(window)
            thumbnail_url = _canonical(tm.group(1)) if tm else None

            # alt='Performer - Tytuł - Studio' → performer (pierwszy), studio (ostatni).
            # Kilka osob stoi w pierwszym czlonie po przecinku ("A, B - Tytul").
            performers: list[RawPerformer] = []
            studio: RawStudio | None = None
            am = _ALT_RE.search(window)
            if am and " - " in am.group(1):
                parts = [p.strip() for p in am.group(1).split(" - ") if p.strip()]
                if len(parts) >= 2:
                    sname = parts[-1]
                    for pname in (n.strip() for n in parts[0].split(",")):
                        if pname:
                            performers.append(
                                RawPerformer(
                                    external_id=f"{self.sitetag}:performer:{_slugify(pname)}",
                                    name=pname,
                                )
                            )
                    if sname and len(parts) >= 3:
                        studio = RawStudio(
                            external_id=f"{self.sitetag}:studio:{_slugify(sname)}",
                            name=sname,
                            slug=_slugify(sname),
                        )

            # Kategoria ze ścieżki miniatury (/category/<Kat>/<id>.jpg).
            tags: list[RawTag] = []
            if thumbnail_url:
                cm = _CAT_RE.search(thumbnail_url)
                if cm and cm.group(1).lower() not in ("uncategorized", ""):
                    cat = cm.group(1).replace("-", " ").replace("_", " ").strip()
                    tags.append(
                        RawTag(
                            external_id=f"{self.sitetag}:tag:{_slugify(cat)}",
                            name=cat,
                            slug=_slugify(cat),
                        )
                    )

            fingerprints: list[RawFingerprint] = []
            if thumbnail_url:
                ph = compute_thumbnail_phash(thumbnail_url, referer=_BASE + "/")
                if ph:
                    fingerprints.append(RawFingerprint(kind="phash", value=ph))

            playback_sources = [
                RawPlaybackSource(
                    origin=f"tube:{self.sitetag}",
                    page_url=scene_url,
                    duration_sec=duration_sec,
                    thumbnail_url=thumbnail_url,
                )
            ]

            out.append(
                RawScene(
                    external_id=f"{self.sitetag}:{scene_url}",
                    title=title,
                    duration_sec=duration_sec,
                    url=scene_url,
                    studio=studio,
                    performers=performers,
                    tags=tags,
                    fingerprints=fingerprints,
                    playback_sources=playback_sources,
                )
            )

        log.info("siska browse page %d: %d scenes", page, len(out))
        return out