import logging
import re
import time
from typing import Optional
from urllib.parse import urlparse, parse_qs, urlencode, urlunparse

from browser_session import BrowserSession

logger = logging.getLogger("bot")

ALL_STUDIOS_URL = "https://www.adultdvdmarketplace.com/xcart/adult_dvd/studios.php"


class StudioNavigator:
    def __init__(self, session: BrowserSession):
        self.session = session

    @property
    def page(self):
        return self.session.page

    # ------------------------------------------------------------------
    # Navigate by direct URL
    # ------------------------------------------------------------------

    def navigate_to_studio_url(self, url: str) -> bool:
        """Go to a studio listing URL, ensuring price ordering is set."""
        url = self._ensure_price_sort(url)
        logger.info(f"Opening studio URL: {url}")
        if not self.session.goto(url):
            return False
        time.sleep(1)
        logger.info("Studio page loaded")
        return True

    # ------------------------------------------------------------------
    # Navigate by studio name
    # ------------------------------------------------------------------

    def _open_view_all_studios(self) -> bool:
        page = self.page

        top_studios_selectors = [
            "a:has-text('TOP STUDIOS')",
            "a:has-text('Top Studios')",
            "button:has-text('TOP STUDIOS')",
            "button:has-text('Top Studios')",
        ]
        for sel in top_studios_selectors:
            try:
                menu = page.locator(sel).first
                if menu.is_visible(timeout=1000):
                    try:
                        menu.hover(timeout=1000)
                    except Exception:
                        pass
                    menu.click()
                    time.sleep(1.5)
                    break
            except Exception:
                continue

        view_all_selectors = [
            "a:has-text('VIEW ALL STUDIOS...')",
            "a:has-text('VIEW ALL STUDIOS')",
            "a:has-text('View All Studios')",
            "button:has-text('VIEW ALL STUDIOS')",
            "button:has-text('View All Studios')",
        ]
        for sel in view_all_selectors:
            try:
                link = page.locator(sel).first
                if link.is_visible(timeout=2000):
                    logger.info(f"Found View All Studios link with selector: {sel}")
                    link.click()
                    page.wait_for_load_state("domcontentloaded", timeout=10000)
                    time.sleep(1)
                    logger.info("Opened all studios directory from menu")
                    return True
            except Exception as e:
                logger.debug(f"Failed to find/click VIEW ALL STUDIOS with {sel}: {e}")
                continue

        logger.warning("Could not open View All Studios from menu; using directory URL")
        return self.session.goto(ALL_STUDIOS_URL)

    def _click_studio_link(self, studio_name: str) -> bool:
        page = self.page
        escaped = re.escape(studio_name.strip())
        patterns = [
            re.compile(rf"^{escaped}\s+DVD Movies$", re.I),
            re.compile(rf"^{escaped}$", re.I),
            re.compile(escaped, re.I),
        ]

        for attempt in range(1, 4):
            try:
                # Wait for studio directory content to render before searching links.
                page.locator("a:has-text('DVD Movies')").first.wait_for(timeout=4000)
            except Exception:
                pass

            for pattern in patterns:
                try:
                    link = page.get_by_role("link", name=pattern).first
                    if link.is_visible(timeout=2000):
                        link.click()
                        page.wait_for_load_state("domcontentloaded", timeout=10000)
                        time.sleep(1)
                        return True
                except Exception:
                    continue

            try:
                anchors = page.locator("a").all()
                target = studio_name.lower().strip()
                for anchor in anchors:
                    try:
                        text = anchor.inner_text(timeout=500).strip().lower()
                        if target in text and "dvd movies" in text:
                            anchor.click()
                            page.wait_for_load_state("domcontentloaded", timeout=10000)
                            time.sleep(1)
                            return True
                    except Exception:
                        continue
            except Exception:
                pass

            if attempt < 3:
                logger.warning(f"Studio link not found on attempt {attempt}; reloading all studios directory")
                self.session.goto(ALL_STUDIOS_URL)
                time.sleep(1)

        return False

    def find_studio_by_name(self, studio_name: str) -> Optional[str]:
        """Open the all-studios directory from the menu and click the matching studio."""
        logger.info(f"Searching for studio: '{studio_name}'")
        if not self._open_view_all_studios():
            return None

        if self._click_studio_link(studio_name):
            current_url = self.page.url
            logger.info(f"Opened studio page: {current_url}")
            return self._ensure_price_sort(current_url)

        logger.warning(f"Could not click studio link for: {studio_name}")
        return None

    # ------------------------------------------------------------------
    # Helpers
    # ------------------------------------------------------------------

    @staticmethod
    def _ensure_price_sort(url: str) -> str:
        if "order_by=" in url:
            return url
        sep = "&" if "?" in url else "?"
        return f"{url}{sep}order_by=price"

    @staticmethod
    def _make_absolute(href: str, base: str = "https://www.adultdvdmarketplace.com/xcart/") -> str:
        if href.startswith("http"):
            return href
        from urllib.parse import urljoin
        return urljoin(base, href)