"""watchporn.to — browse scraper (KVS engine). Re-enabled 2026-07-02.

Był search-scraperem (`?s=`), zamarzł, a potem site przebudowano na KVS z nowym
layoutem. DoodStream-CAPTCHA (powód wyłączenia 2026-05-12) zniknął — teraz KVS
flashvars `get_file` direct mp4 (extractor `watchporn`, VPS-side, token nie IP-bound).

Browse `/latest-updates/` → detail page:
  - title: og:title ("Studio/Creator - Scene Title")
  - duration + release_date: JSON-LD "duration" (ISO) + "uploadDate"
  - performerzy: `/models/<slug>/` (pomijamy numeryczne id-slugi), nazwa z tekstu linku
  - tagi: `/tags/<slug>/`
  - studio: pierwszy `/categories/<slug>/` (np. EvilAngel, ManyVids)
"""
from __future__ import annotations

import html
import re

from app.connectors.base import (
    RawPerformer,
    RawPlaybackSource,
    RawScene,
    RawStudio,
    RawTag,
)
from app.connectors.direct_scrapers._browse_base import BaseBrowseScraper, meta_content
from app.connectors.direct_scrapers._playtube import _parse_iso_date, _parse_iso_duration
from app.normalize.text import slugify

_BASE = "https://watchporn.to"
_SCENE_URL_RE = re.compile(r'href="(https://watchporn\.to/video/\d+/[a-z0-9\-]+/)"', re.IGNORECASE)
_MODEL_RE = re.compile(r'href="https://watchporn\.to/models/([a-z0-9\-]+)/"[^>]*>([^<]+)', re.IGNORECASE)
_TAG_RE = re.compile(r'href="https://watchporn\.to/tags/([a-z0-9\-]+)/"[^>]*>([^<]+)', re.IGNORECASE)
_CAT_RE = re.compile(r'href="https://watchporn\.to/categories/([a-z0-9\-]+)/"[^>]*>([^<]+)', re.IGNORECASE)
_DUR_RE = re.compile(r'"duration"\s*:\s*"([^"]+)"')
_UPLOAD_RE = re.compile(r'"uploadDate"\s*:\s*"([^"]+)"')
_VIDEO_ID_RE = re.compile(r"/video/(\d+)/")


def _derive_thumb(scene_url: str) -> str | None:
    """KVS trzyma poster pod stałym wzorem `contents/videos_screenshots/<id//1000*1000>/
    <id>/preview.jpg` (zweryfikowane). Fallback gdy detail page nie ma og:image, żeby
    kafelek na liście miał miniaturkę OD RAZU (bez czekania na auto-enrich w SceneDetail)."""
    m = _VIDEO_ID_RE.search(scene_url)
    if not m:
        return None
    vid = int(m.group(1))
    return f"{_BASE}/contents/videos_screenshots/{vid // 1000 * 1000}/{vid}/preview.jpg"


class WatchPornScraper(BaseBrowseScraper):
    sitetag = "watchporn"

    def _listing_url(self, page: int) -> str:
        return f"{_BASE}/latest-updates/" if page <= 1 else f"{_BASE}/latest-updates/{page}/"

    def _extract_scene_urls(self, listing_html: str) -> list[str]:
        seen: set[str] = set()
        out: list[str] = []
        for m in _SCENE_URL_RE.finditer(listing_html):
            url = m.group(1)
            if url not in seen:
                seen.add(url)
                out.append(url)
        return out

    def _parse_detail(self, scene_url: str, detail_html: str) -> RawScene | None:
        title = (meta_content(detail_html, property="og:title") or "").strip()
        if not title:
            return None

        dm = _DUR_RE.search(detail_html)
        duration_sec = _parse_iso_duration(dm.group(1)) if dm else None
        um = _UPLOAD_RE.search(detail_html)
        release_date = _parse_iso_date(um.group(1)) if um else None

        performers: list[RawPerformer] = []
        seen_p: set[str] = set()
        for m in _MODEL_RE.finditer(detail_html):
            slug = m.group(1)
            name = html.unescape(m.group(2)).strip()
            if slug.isdigit() or slug in seen_p or not name:
                continue
            seen_p.add(slug)
            performers.append(RawPerformer(external_id=f"{self.sitetag}:model:{slug}", name=name))

        tags: list[RawTag] = []
        seen_t: set[str] = set()
        for m in _TAG_RE.finditer(detail_html):
            slug = m.group(1)
            name = html.unescape(m.group(2)).strip()
            if slug in seen_t or not name:
                continue
            seen_t.add(slug)
            tags.append(RawTag(external_id=f"{self.sitetag}:tag:{slug}", name=name, slug=slug))

        thumbnail_url = (
            meta_content(detail_html, property="og:image") or _derive_thumb(scene_url)
        )

        studio: RawStudio | None = None
        cm = _CAT_RE.search(detail_html)
        if cm:
            cname = html.unescape(cm.group(2)).strip()
            if cname:
                studio = RawStudio(
                    external_id=f"{self.sitetag}:studio:{slugify(cname)}", name=cname, slug=slugify(cname)
                )

        return RawScene(
            external_id=f"{self.sitetag}:{scene_url}",
            title=title,
            release_date=release_date,
            duration_sec=duration_sec,
            url=scene_url,
            studio=studio,
            performers=performers,
            tags=tags,
            playback_sources=[
                RawPlaybackSource(
                    origin=f"tube:{self.sitetag}",
                    page_url=scene_url,
                    duration_sec=duration_sec,
                    thumbnail_url=thumbnail_url,
                )
            ],
        )