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

logger = logging.getLogger(__name__)

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

    async def apply(self, listing: dict, result: dict) -> dict:
        DATA_DIR = Path("data/degewo")
        DATA_DIR.mkdir(parents=True, exist_ok=True)
        page = await self.context.new_page()
        try:
            logger.info(f"[DEGEWO] Opening page: {listing['link']}")
            response = await page.goto(listing["link"], wait_until="networkidle")
            logger.info("[DEGEWO] Page loaded")
            await asyncio.sleep(2)

            # 404 detection
            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"[DEGEWO] Listing is down (404): {listing['link']}")
                result["success"] = False
                result["message"] = "Listing is no longer available (404). Application impossible. Will not retry."
                result["permanent_fail"] = True
                await page.close()
                return result

            # Check for 'INSERAT DEAKTIVIERT' (deactivated listing)
            page_content = await page.content()
            if "INSERAT DEAKTIVIERT" in page_content or "Inserat deaktiviert" in page_content:
                logger.warning("[DEGEWO] Listing is deactivated (INSERAT DEAKTIVIERT detected), treating as 404")
                result["success"] = False
                result["message"] = "Listing deactivated (404)"
                result["deactivated"] = True  # Mark for removal from retries
                await page.close()
                return result

            # Dismiss cookie banner
            try:
                cookie_btn = await page.query_selector('button:has-text("Alle akzeptieren"), #CybotCookiebotDialogBodyLevelButtonLevelOptinAllowAll')
                if cookie_btn and await cookie_btn.is_visible():
                    await cookie_btn.click()
                    logger.info("[DEGEWO] Dismissed cookie banner")
                    await asyncio.sleep(1)
            except Exception as e:
                logger.debug(f"[DEGEWO] Cookie banner dismiss failed: {e}")

            logger.info("[DEGEWO] Looking for kontaktieren button...")
            apply_btn = await page.query_selector('a:has-text("kontaktieren"), button:has-text("kontaktieren"), a:has-text("Kontaktieren"), button:has-text("Kontaktieren")')
            if apply_btn and await apply_btn.is_visible():
                logger.info("[DEGEWO] Found kontaktieren button, clicking...")
                await apply_btn.click()
                await asyncio.sleep(3)

                # Degewo uses Wohnungshelden iframe for the application form
                # Find the iframe and get its URL to navigate directly
                iframe_element = await page.query_selector('iframe[src*="wohnungshelden.de"]')
                if iframe_element:
                    iframe_url = await iframe_element.get_attribute('src')
                    logger.info(f"[DEGEWO] Found Wohnungshelden iframe: {iframe_url}")

                    # Navigate to the iframe URL directly in a new page for full access
                    iframe_page = await self.context.new_page()
                    try:
                        await iframe_page.goto(iframe_url, wait_until="networkidle")
                        await asyncio.sleep(2)
                        logger.info("[DEGEWO] Loaded Wohnungshelden application page")
                        # TODO: Implement form-filling and submission logic here
                    finally:
                        await iframe_page.close()
                else:
                    # No iframe found - try the old approach (fallback for different page structure)
                    logger.warning("[DEGEWO] Wohnungshelden iframe not found, trying direct form...")
                    # TODO: Implement fallback logic here
            else:
                result["message"] = "No kontaktieren button found"
                logger.warning("[DEGEWO] Could not find kontaktieren button")
                screenshot_path = DATA_DIR / f"degewo_nobtn_{listing['id']}.png"
                await page.screenshot(path=str(screenshot_path), full_page=True)

            await page.close()
            return result
        except Exception as e:
            result["success"] = False
            result["message"] = f"Error: {str(e)}"
            logger.error(f"[DEGEWO] Exception: {str(e)}")
            await page.close()
            return result