from .base_handler import BaseHandler
import logging
import asyncio
from pathlib import Path

logger = logging.getLogger(__name__)
DATA_DIR = Path("data/gewobag")
DATA_DIR.mkdir(parents=True, exist_ok=True)

class GewobagHandler(BaseHandler):
    def __init__(self, browser_context):
        self.context = browser_context

    async def apply(self, listing: dict, result: dict) -> dict:
        page = await self.context.new_page()
        try:
            logger.info(f"[GEWOBAG] Opening page: {listing['link']}")
            response = await page.goto(listing["link"], wait_until="networkidle")
            logger.info("[GEWOBAG] Page loaded")
            await asyncio.sleep(2)

            # Detect 404 by status or page title
            status = response.status if response else None
            page_title = await page.title()
            if status == 404 or (page_title and "404" in page_title):
                logger.warning(f"[GEWOBAG] Listing is down (404): {listing['link']}")
                result["success"] = False
                result["message"] = "Listing is no longer available (404). Application impossible. Will not retry."
                result["deactivated"] = True
                return result

            # Always handle cookies and consent before anything else
            await self.handle_cookies(page)
            await self.handle_consent(page)

            # Save HTML after modal handling for debugging
            try:
                html_content = await page.content()
                with open(DATA_DIR / "gewobag_debug.html", "w", encoding="utf-8") as f:
                    f.write(html_content)
            except Exception as e:
                logger.warning(f"[GEWOBAG] Could not save debug HTML: {e}")

            # Log listing details
            await self.log_listing_details(listing)

            # Look for application button ("Anfrage senden") in tab or footer
            logger.info("[GEWOBAG] Looking for application button...")
            selectors = [
                'button.rental-contact',
                'button:has-text("Anfrage senden")',
                'div.contact-button button',
                'iframe#contact-iframe',
            ]

            apply_btn = None
            for sel in selectors:
                all_btns = await page.query_selector_all(sel)
                logger.info(f"[GEWOBAG] Selector '{sel}' found {len(all_btns)} matches")
                for btn in all_btns:
                    try:
                        if await btn.is_visible():
                            apply_btn = btn
                            logger.info(f"[GEWOBAG] Found visible button with selector '{sel}'")
                            break
                    except Exception as e:
                        logger.warning(f"[GEWOBAG] Error checking button visibility: {e}")
                if apply_btn:
                    break

            # If not found, check for iframe (Wohnungshelden)
            if not apply_btn:
                iframe = await page.query_selector('iframe#contact-iframe')
                if iframe:
                    logger.info("[GEWOBAG] Found Wohnungshelden iframe, switching context...")
                    frame = await iframe.content_frame()
                    if frame:
                        # Try to find a submit/apply button in the iframe
                        iframe_btns = await frame.query_selector_all('button, input[type="submit"]')
                        for btn in iframe_btns:
                            try:
                                if await btn.is_visible():
                                    apply_btn = btn
                                    logger.info("[GEWOBAG] Found visible button in iframe")
                                    break
                            except Exception as e:
                                logger.warning(f"[GEWOBAG] Error checking iframe button visibility: {e}")

            if apply_btn:
                logger.info("[GEWOBAG] Found application button, scrolling into view...")
                await apply_btn.scroll_into_view_if_needed()
                await asyncio.sleep(0.5)
                logger.info("[GEWOBAG] Clicking button...")
                await apply_btn.click()
                await asyncio.sleep(2)
                # --- Post-click confirmation logic ---
                logger.info("[GEWOBAG] Clicked application button, checking for confirmation...")
                # Save screenshot and HTML after click
                try:
                    await page.screenshot(path="data/gewobag_after_apply.png")
                    logger.info("[GEWOBAG] Saved screenshot after application click.")
                except Exception as e:
                    logger.warning(f"[GEWOBAG] Could not save screenshot: {e}")
                try:
                    html_after = await page.content()
                    with open("data/gewobag_after_apply.html", "w", encoding="utf-8") as f:
                        f.write(html_after)
                    logger.info("[GEWOBAG] Saved HTML after application click.")
                except Exception as e:
                    logger.warning(f"[GEWOBAG] Could not save HTML after apply: {e}")

                # Look for confirmation message on the page
                confirmation_selectors = [
                    'text="Vielen Dank"',
                    'text="Ihre Anfrage wurde gesendet"',
                    'text="Bestätigung"',
                    'div:has-text("Vielen Dank")',
                    'div:has-text("Ihre Anfrage wurde gesendet")',
                ]
                confirmed = False
                for sel in confirmation_selectors:
                    try:
                        el = await page.query_selector(sel)
                        if el and await el.is_visible():
                            logger.info(f"[GEWOBAG] Found confirmation element: {sel}")
                            confirmed = True
                            break
                    except Exception as e:
                        logger.debug(f"[GEWOBAG] Error checking confirmation selector {sel}: {e}")
                if confirmed:
                    result["success"] = True
                    result["message"] = "Application submitted and confirmation detected."
                else:
                    logger.warning("[GEWOBAG] No confirmation message detected after application click.")
                    result["success"] = False
                    result["message"] = "Clicked application button, but no confirmation detected. Check screenshot and HTML."
            else:
                result["message"] = "No application button found."
        except Exception as e:
            result["message"] = f"Error during application: {e}"
            logger.error(f"[GEWOBAG] Application error: {e}")
        finally:
            await page.close()

        return result