feat: Rebuild search system with modular, site-specific parsers

Complete refactoring of the search module for robustness and reliability:

**New Architecture:**
- Modular parser system with specialized parsers for each major site
- Factory pattern for automatic parser selection
- Generic fallback parser for sites without specific implementation

**Specialized Parsers:**
- ✅ Amazon.fr - Robust parser with multiple fallback selectors
  - Handles sponsored products, Prime eligibility, ratings, reviews
  - Based on proven amazon_scraper_v2.py implementation
- ✅ Cdiscount.com - Optimized for Cdiscount's HTML structure
- ✅ Fnac.com - Handles Fnac's picture elements and article structure
- ✅ Darty.com - Specialized for electronics retailer
- ✅ Boulanger.com - Optimized for Boulanger's product cards

**Key Features:**
- Multiple fallback selectors for each element (title, price, image)
- Proper price parsing for French format (1 234,56 €)
- Rating and review count extraction
- Stock status detection
- Image URL extraction with multiple attribute fallbacks
- Query filtering to ensure relevant results

**Benefits:**
- Much more robust than previous generic parsing
- Easier to maintain (one parser per site)
- Easily extensible (add new parser for new site)
- Better error handling and logging
- Higher success rate for product extraction

**Updated Services:**
- improved_search_service.py now uses ParserFactory
- Legacy _parse_results marked as deprecated
- Conversion layer between ProductResult and SearchResult

This implements the Amazon France model across all major sites
for consistent, reliable product search results.

app/services/improved_search_service.py

@@ -1,14 +1,15 @@
 """
 Improved Search Service - Using Persistent Browser Connection
 Based on ScraperService pattern for better session management and reliability
+
+UPDATED: Now uses modular, site-specific parsers for robust product extraction
 """
 
 import asyncio
 import logging
 from typing import AsyncGenerator
-from urllib.parse import quote_plus, urljoin
+from urllib.parse import quote_plus
 
-from bs4 import BeautifulSoup
 from playwright.async_api import Browser, BrowserContext, Page, async_playwright
 from playwright.async_api import TimeoutError as PlaywrightTimeoutError
 from sqlalchemy.orm import Session
@@ -16,6 +17,7 @@ from sqlalchemy.orm import Session
 from app.core.search_config import SITE_CONFIGS, BROWSERLESS_URL
 from app.models import SearchSite
 from app.schemas import SearchProgress, SearchResultItem
+from app.services.parsers import ParserFactory, ProductResult
 
 logger = logging.getLogger(__name__)
 
@@ -245,8 +247,12 @@ class ImprovedSearchService:
                     logger.warning(f"⚠️ Page too small - possibly blocked")
                     return []
 
-                # Parse results
-                results = cls._parse_results(html_content, site_key, search_url, query)
+                # Parse results using specialized parser
+                parser = ParserFactory.get_parser(site_key)
+                parsed_products = parser.parse_search_results(html_content, query, search_url)
+
+                # Convert ProductResult to SearchResult
+                results = [cls._convert_to_search_result(p) for p in parsed_products]
 
                 # Scrape details for each result (in parallel)
                 if results:
@@ -271,9 +277,26 @@ class ImprovedSearchService:
         logger.info(f"✅ Successfully found {len(results)} products from {config['name']}")
         return results
 
+    @staticmethod
+    def _convert_to_search_result(product: ProductResult) -> SearchResult:
+        """Convert ProductResult to SearchResult"""
+        return SearchResult(
+            url=product.url,
+            title=product.title,
+            snippet=product.snippet,
+            source=product.source,
+            price=product.price,
+            currency=product.currency,
+            in_stock=product.in_stock,
+            image_url=product.image_url,
+        )
+
     @staticmethod
     def _parse_results(html: str, site_key: str, base_url: str, query: str) -> list[SearchResult]:
-        """Parse HTML content to extract search results"""
+        """
+        DEPRECATED: Legacy parsing method - now using specialized parsers
+        This method is kept for backward compatibility but should not be used
+        """
         config = SITE_CONFIGS[site_key]
         soup = BeautifulSoup(html, "html.parser")
         results = []

app/services/parsers/__init__.py

@@ -0,0 +1,25 @@
+"""
+Site-Specific Parsers for Robust Product Search
+Each parser implements specialized logic for extracting search results and product details
+"""
+
+from .base_parser import BaseParser, ProductResult
+from .parser_factory import ParserFactory
+from .amazon_parser import AmazonParser
+from .cdiscount_parser import CdiscountParser
+from .fnac_parser import FnacParser
+from .darty_parser import DartyParser
+from .boulanger_parser import BoulangerParser
+from .generic_parser import GenericParser
+
+__all__ = [
+    "BaseParser",
+    "ProductResult",
+    "ParserFactory",
+    "AmazonParser",
+    "CdiscountParser",
+    "FnacParser",
+    "DartyParser",
+    "BoulangerParser",
+    "GenericParser",
+]

app/services/parsers/amazon_parser.py

@@ -0,0 +1,199 @@
+"""
+Amazon France Parser - Robust and specialized parser for Amazon.fr
+Based on amazon_scraper_v2.py with proven selectors and logic
+"""
+
+from bs4 import BeautifulSoup
+
+from .base_parser import BaseParser, ProductResult
+
+
+class AmazonParser(BaseParser):
+    """
+    Specialized parser for Amazon France
+
+    Features:
+    - Multiple fallback selectors for each element
+    - Sponsored product detection
+    - Prime eligibility detection
+    - Rating and reviews extraction
+    - Original price detection (discounts)
+    """
+
+    def __init__(self):
+        super().__init__(
+            site_name="Amazon",
+            base_url="https://www.amazon.fr"
+        )
+
+    def parse_search_results(self, html: str, query: str, search_url: str) -> list[ProductResult]:
+        """
+        Parse Amazon search results page
+
+        Amazon uses data-component-type="s-search-result" for product cards
+        """
+        soup = BeautifulSoup(html, 'html.parser')
+        products = []
+
+        # Primary selector: data-component-type
+        product_cards = soup.find_all('div', {'data-component-type': 's-search-result'})
+
+        if not product_cards:
+            self.logger.warning("No products with primary selector, trying alternative")
+            # Alternative: data-asin
+            product_cards = soup.find_all('div', {'data-asin': True, 'data-index': True})
+
+        if not product_cards:
+            # Check for blocks
+            if 'captcha' in html.lower():
+                self.logger.error("🚫 CAPTCHA detected")
+            elif 'robot' in html.lower() or 'bot' in html.lower():
+                self.logger.error("🤖 Bot detection triggered")
+            else:
+                self.logger.warning("📦 No results found")
+            return []
+
+        self.logger.info(f"Found {len(product_cards)} product cards on Amazon")
+
+        for idx, card in enumerate(product_cards):
+            try:
+                product = self._parse_product_card(card)
+                if product:
+                    products.append(product)
+            except Exception as e:
+                self.logger.error(f"Error parsing card {idx}: {e}")
+                continue
+
+        return products
+
+    def _parse_product_card(self, card) -> ProductResult | None:
+        """Parse a single Amazon product card"""
+
+        # Extract ASIN
+        asin = card.get('data-asin', '')
+        if not asin:
+            return None
+
+        # Check if sponsored
+        sponsored = bool(card.select_one('[data-component-type="sp-sponsored-result"]'))
+
+        # Extract title - multiple selectors
+        title = None
+        title_selectors = [
+            'h2 a span',
+            'h2 span',
+            'h2.s-line-clamp-2 span',
+            '.s-title-instructions-style span',
+        ]
+        for selector in title_selectors:
+            title_elem = card.select_one(selector)
+            if title_elem:
+                title = title_elem.get_text(strip=True)
+                if title:
+                    break
+
+        if not title:
+            return None
+
+        # Extract URL
+        link_elem = card.select_one('h2 a')
+        if not link_elem:
+            link_elem = card.select_one('a.s-link-style')
+        if not link_elem:
+            return None
+
+        href = link_elem.get('href', '')
+        product_url = self.make_absolute_url(href)
+
+        # Extract price (current price)
+        price = None
+        price_selectors = [
+            '.a-price .a-offscreen',
+            '.a-price-whole',
+            'span.a-price span.a-offscreen',
+        ]
+        for selector in price_selectors:
+            price_elem = card.select_one(selector)
+            if price_elem:
+                price_text = price_elem.get_text(strip=True)
+                price = self.parse_price_text(price_text)
+                if price:
+                    break
+
+        # Extract original price (if discounted)
+        original_price = None
+        original_price_elem = card.select_one('.a-price.a-text-price .a-offscreen')
+        if original_price_elem:
+            original_price = self.parse_price_text(original_price_elem.get_text(strip=True))
+
+        # Extract rating
+        rating = None
+        rating_selectors = [
+            '[aria-label*="étoile"]',
+            '[aria-label*="star"]',
+            'i.a-icon-star-small span',
+        ]
+        for selector in rating_selectors:
+            rating_elem = card.select_one(selector)
+            if rating_elem:
+                aria_label = rating_elem.get('aria-label', '')
+                if aria_label:
+                    rating = self.parse_rating_text(aria_label)
+                    if rating:
+                        break
+
+        # Extract reviews count
+        reviews_count = None
+        reviews_selectors = [
+            '[aria-label*="étoile"] + span',
+            '[aria-label*="star"] + span',
+            'span.s-underline-text',
+        ]
+        for selector in reviews_selectors:
+            reviews_elem = card.select_one(selector)
+            if reviews_elem:
+                reviews_count = self.parse_reviews_count_text(reviews_elem.get_text(strip=True))
+                if reviews_count:
+                    break
+
+        # Extract image
+        image_url = None
+        img_selectors = [
+            'img.s-image',
+            'img[data-image-latency="s-product-image"]',
+            'img',
+        ]
+        for selector in img_selectors:
+            img_elem = card.select_one(selector)
+            if img_elem:
+                image_url = self._get_image_src(img_elem)
+                if image_url:
+                    break
+
+        # Check Prime eligibility
+        prime = bool(
+            card.select_one('[aria-label*="Prime"]') or
+            card.select_one('i.a-icon-prime')
+        )
+
+        # Check availability
+        in_stock = True
+        unavailable_elem = card.select_one('[aria-label*="Indisponible"]') or \
+                          card.select_one('[aria-label*="Unavailable"]')
+        if unavailable_elem:
+            in_stock = False
+
+        return ProductResult(
+            title=title,
+            url=product_url,
+            source=self.site_name,
+            price=price,
+            original_price=original_price,
+            currency="EUR",
+            in_stock=in_stock,
+            image_url=image_url,
+            rating=rating,
+            reviews_count=reviews_count,
+            sponsored=sponsored,
+            snippet=f"Prime: {'✓' if prime else '✗'} | {'Sponsored' if sponsored else 'Organic'}"
+        )

app/services/parsers/base_parser.py

@@ -0,0 +1,222 @@
+"""
+Base Parser - Abstract interface for site-specific parsers
+Defines the common structure all parsers must implement
+"""
+
+import logging
+import re
+from abc import ABC, abstractmethod
+from dataclasses import dataclass
+from urllib.parse import urljoin
+
+from bs4 import BeautifulSoup
+
+logger = logging.getLogger(__name__)
+
+
+@dataclass
+class ProductResult:
+    """Unified product result data structure"""
+    title: str
+    url: str
+    source: str
+    price: float | None = None
+    original_price: float | None = None
+    currency: str = "EUR"
+    in_stock: bool | None = None
+    image_url: str | None = None
+    rating: float | None = None
+    reviews_count: int | None = None
+    sponsored: bool = False
+    snippet: str = ""
+
+
+class BaseParser(ABC):
+    """
+    Abstract base class for site-specific parsers
+
+    Each parser must implement:
+    - parse_search_results: Extract products from search page HTML
+    - parse_product_details: Extract details from product page HTML (optional)
+    """
+
+    def __init__(self, site_name: str, base_url: str):
+        self.site_name = site_name
+        self.base_url = base_url
+        self.logger = logging.getLogger(f"{__name__}.{self.__class__.__name__}")
+
+    @abstractmethod
+    def parse_search_results(self, html: str, query: str, search_url: str) -> list[ProductResult]:
+        """
+        Parse search results page HTML to extract products
+
+        Args:
+            html: Raw HTML content of search page
+            query: Original search query
+            search_url: URL of the search page
+
+        Returns:
+            List of ProductResult objects
+        """
+        pass
+
+    def parse_product_details(self, html: str, product_url: str) -> dict:
+        """
+        Parse product detail page to extract price, stock, etc.
+
+        Optional: Override this if you need to scrape individual product pages
+
+        Args:
+            html: Raw HTML of product page
+            product_url: URL of the product
+
+        Returns:
+            Dict with price, in_stock, etc.
+        """
+        return {}
+
+    # ==================== HELPER METHODS ====================
+
+    def make_absolute_url(self, url: str, base_url: str | None = None) -> str:
+        """Convert relative URL to absolute URL"""
+        if not url:
+            return ""
+        if url.startswith("http"):
+            return url
+        return urljoin(base_url or self.base_url, url)
+
+    def parse_price_text(self, price_text: str) -> float | None:
+        """
+        Parse French price format to float
+
+        Handles:
+        - "12,99 €"
+        - "12,99€"
+        - "1 234,99 €"
+        - "12.99 EUR"
+        """
+        if not price_text:
+            return None
+
+        # Remove currency symbols
+        cleaned = price_text.strip().replace('€', '').replace('EUR', '').strip()
+
+        # Remove thousands separators
+        cleaned = cleaned.replace(' ', '').replace('\xa0', '')
+
+        # Replace French decimal separator
+        cleaned = cleaned.replace(',', '.')
+
+        # Extract first number
+        match = re.search(r'(\d+\.?\d*)', cleaned)
+        if match:
+            try:
+                price = float(match.group(1))
+                # Validate range
+                if 0.01 <= price <= 100000:
+                    return price
+            except ValueError:
+                pass
+
+        return None
+
+    def parse_rating_text(self, rating_text: str) -> float | None:
+        """Parse rating like '4,5 sur 5 étoiles'"""
+        if not rating_text:
+            return None
+
+        match = re.search(r'(\d+[,.]\d+)', rating_text)
+        if match:
+            try:
+                return float(match.group(1).replace(',', '.'))
+            except ValueError:
+                pass
+
+        return None
+
+    def parse_reviews_count_text(self, reviews_text: str) -> int | None:
+        """Parse review count like '1 234'"""
+        if not reviews_text:
+            return None
+
+        cleaned = re.sub(r'[^\d\s]', '', reviews_text)
+        cleaned = cleaned.replace(' ', '').replace('\xa0', '')
+
+        try:
+            return int(cleaned)
+        except ValueError:
+            return None
+
+    def filter_by_query(self, title: str, query: str, strict: bool = False) -> bool:
+        """
+        Check if title matches query words
+
+        Args:
+            title: Product title
+            query: Search query
+            strict: If True, ALL query words must be in title. If False, at least ONE word.
+        """
+        if not query:
+            return True
+
+        title_lower = title.lower()
+        query_words = [w.lower() for w in query.split() if len(w) > 2]
+
+        if not query_words:
+            return True
+
+        if strict:
+            # All words must be present
+            return all(word in title_lower for word in query_words)
+        else:
+            # At least one word must be present
+            return any(word in title_lower for word in query_words)
+
+    def extract_image_url(self, element, selectors: list[str] = None) -> str | None:
+        """
+        Extract image URL from element with fallback selectors
+
+        Args:
+            element: BeautifulSoup element
+            selectors: Optional CSS selectors to try
+        """
+        if selectors:
+            for selector in selectors:
+                img = element.select_one(selector)
+                if img:
+                    url = self._get_image_src(img)
+                    if url:
+                        return url
+
+        # Fallback: find any img
+        img = element.find("img")
+        if img:
+            return self._get_image_src(img)
+
+        # Try picture element
+        picture = element.find("picture")
+        if picture:
+            source = picture.find("source")
+            if source and source.get("srcset"):
+                return source.get("srcset").split(",")[0].split()[0]
+            img = picture.find("img")
+            if img:
+                return self._get_image_src(img)
+
+        return None
+
+    def _get_image_src(self, img_element) -> str | None:
+        """Extract image source from img element"""
+        attrs = ['src', 'data-src', 'data-lazy-src', 'data-original', 'data-lazy']
+
+        for attr in attrs:
+            url = img_element.get(attr)
+            if url and not url.startswith('data:'):
+                return url
+
+        # Try srcset
+        srcset = img_element.get('srcset')
+        if srcset:
+            return srcset.split(",")[0].split()[0]
+
+        return None

app/services/parsers/boulanger_parser.py

@@ -0,0 +1,130 @@
+"""
+Boulanger Parser - Specialized parser for Boulanger.com
+"""
+
+from bs4 import BeautifulSoup
+
+from .base_parser import BaseParser, ProductResult
+
+
+class BoulangerParser(BaseParser):
+    """
+    Parser for Boulanger.com
+
+    Key selectors:
+    - Product links: a[href*='/ref/'][href*='_']
+    - Images: img.product-image
+    """
+
+    def __init__(self):
+        super().__init__(
+            site_name="Boulanger",
+            base_url="https://www.boulanger.com"
+        )
+
+    def parse_search_results(self, html: str, query: str, search_url: str) -> list[ProductResult]:
+        """Parse Boulanger search results"""
+        soup = BeautifulSoup(html, 'html.parser')
+        products = []
+
+        # Try multiple selectors
+        selectors = [
+            "a[href*='/ref/'][href*='_']",
+            ".product-card a",
+            "[class*='product'] a[href*='/ref/']",
+        ]
+
+        links = []
+        for selector in selectors:
+            links = soup.select(selector)
+            if links:
+                self.logger.info(f"Found {len(links)} products with selector: {selector}")
+                break
+
+        if not links:
+            self.logger.warning("No products found on Boulanger")
+            return []
+
+        seen_urls = set()
+
+        for link in links:
+            try:
+                href = link.get("href")
+                if not href:
+                    continue
+
+                full_url = self.make_absolute_url(href)
+
+                if full_url in seen_urls:
+                    continue
+                seen_urls.add(full_url)
+
+                # Extract title
+                title = link.get_text(strip=True)
+                if not title:
+                    title = link.get("title", "")
+
+                # Try in parent
+                if not title or len(title) < 3:
+                    parent = link.find_parent(["article", "li", "div"])
+                    if parent:
+                        title_elem = parent.select_one("h2, h3, .product-title, [class*='title']")
+                        if title_elem:
+                            title = title_elem.get_text(strip=True)
+
+                if not title or len(title) < 3:
+                    continue
+
+                # Filter by query
+                if not self.filter_by_query(title, query):
+                    continue
+
+                # Extract image
+                image_url = None
+                parent = link.find_parent(["article", "li", "div"])
+                if parent:
+                    img_selectors = [
+                        "img.product-image",
+                        "img[class*='product']",
+                        "img",
+                    ]
+                    for img_sel in img_selectors:
+                        img = parent.select_one(img_sel)
+                        if img:
+                            image_url = self._get_image_src(img)
+                            if image_url:
+                                image_url = self.make_absolute_url(image_url)
+                                break
+
+                # Extract price
+                price = None
+                if parent:
+                    price_selectors = [
+                        ".price",
+                        "[class*='price'][class*='current']",
+                        "[data-testid='price']",
+                        "span[class*='prix']",
+                    ]
+                    for price_sel in price_selectors:
+                        price_elem = parent.select_one(price_sel)
+                        if price_elem:
+                            price = self.parse_price_text(price_elem.get_text(strip=True))
+                            if price:
+                                break
+
+                products.append(ProductResult(
+                    title=title,
+                    url=full_url,
+                    source=self.site_name,
+                    price=price,
+                    currency="EUR",
+                    image_url=image_url,
+                    snippet=f"Product from {self.site_name}"
+                ))
+
+            except Exception as e:
+                self.logger.error(f"Error parsing Boulanger product: {e}")
+                continue
+
+        self.logger.info(f"Extracted {len(products)} products from Boulanger")
+        return products

app/services/parsers/cdiscount_parser.py

@@ -0,0 +1,133 @@
+"""
+Cdiscount Parser - Specialized parser for Cdiscount.com
+"""
+
+from bs4 import BeautifulSoup
+
+from .base_parser import BaseParser, ProductResult
+
+
+class CdiscountParser(BaseParser):
+    """
+    Parser for Cdiscount.com
+
+    Key selectors:
+    - Product links: a.prdtBILnk, a[href*='/f-'][href*='.html']
+    - Images: img.lazy, img[data-src]
+    - Prices: Multiple selectors for current/old prices
+    """
+
+    def __init__(self):
+        super().__init__(
+            site_name="Cdiscount",
+            base_url="https://www.cdiscount.com"
+        )
+
+    def parse_search_results(self, html: str, query: str, search_url: str) -> list[ProductResult]:
+        """Parse Cdiscount search results"""
+        soup = BeautifulSoup(html, 'html.parser')
+        products = []
+
+        # Try multiple selectors
+        selectors = [
+            "a.prdtBILnk",
+            "a[href*='/f-'][href*='.html']",
+            ".prdtBIL a.prdtBIL",
+            "article a[href*='/f-']",
+        ]
+
+        links = []
+        for selector in selectors:
+            links = soup.select(selector)
+            if links:
+                self.logger.info(f"Found {len(links)} products with selector: {selector}")
+                break
+
+        if not links:
+            self.logger.warning("No products found on Cdiscount")
+            return []
+
+        seen_urls = set()
+
+        for link in links:
+            try:
+                href = link.get("href")
+                if not href:
+                    continue
+
+                full_url = self.make_absolute_url(href)
+
+                if full_url in seen_urls:
+                    continue
+                seen_urls.add(full_url)
+
+                # Extract title
+                title = link.get_text(strip=True)
+                if not title:
+                    title = link.get("title", "")
+
+                # Try to find title in nearby elements
+                if not title or len(title) < 3:
+                    parent = link.find_parent(["article", "li", "div"])
+                    if parent:
+                        title_elem = parent.select_one(".prdtBTitle, h2, h3, .product-title")
+                        if title_elem:
+                            title = title_elem.get_text(strip=True)
+
+                if not title or len(title) < 3:
+                    continue
+
+                # Filter by query
+                if not self.filter_by_query(title, query):
+                    continue
+
+                # Extract image
+                image_url = None
+                parent = link.find_parent(["article", "li", "div"])
+                if parent:
+                    img_selectors = [
+                        "img.lazy",
+                        "img[data-src]",
+                        "img[src*='image']",
+                        "img",
+                    ]
+                    for img_sel in img_selectors:
+                        img = parent.select_one(img_sel)
+                        if img:
+                            image_url = self._get_image_src(img)
+                            if image_url:
+                                image_url = self.make_absolute_url(image_url)
+                                break
+
+                # Extract price
+                price = None
+                if parent:
+                    price_selectors = [
+                        ".price",
+                        ".prdtPrice",
+                        "[class*='price'][class*='current']",
+                        "span[class*='prix']",
+                    ]
+                    for price_sel in price_selectors:
+                        price_elem = parent.select_one(price_sel)
+                        if price_elem:
+                            price = self.parse_price_text(price_elem.get_text(strip=True))
+                            if price:
+                                break
+
+                products.append(ProductResult(
+                    title=title,
+                    url=full_url,
+                    source=self.site_name,
+                    price=price,
+                    currency="EUR",
+                    image_url=image_url,
+                    snippet=f"Product from {self.site_name}"
+                ))
+
+            except Exception as e:
+                self.logger.error(f"Error parsing Cdiscount product: {e}")
+                continue
+
+        self.logger.info(f"Extracted {len(products)} products from Cdiscount")
+        return products

app/services/parsers/darty_parser.py

@@ -0,0 +1,131 @@
+"""
+Darty Parser - Specialized parser for Darty.com
+"""
+
+from bs4 import BeautifulSoup
+
+from .base_parser import BaseParser, ProductResult
+
+
+class DartyParser(BaseParser):
+    """
+    Parser for Darty.com
+
+    Key selectors:
+    - Product links: a[href*='/nav/achat/'][href*='.html']
+    - Images: img.product_img
+    """
+
+    def __init__(self):
+        super().__init__(
+            site_name="Darty",
+            base_url="https://www.darty.com"
+        )
+
+    def parse_search_results(self, html: str, query: str, search_url: str) -> list[ProductResult]:
+        """Parse Darty search results"""
+        soup = BeautifulSoup(html, 'html.parser')
+        products = []
+
+        # Try multiple selectors
+        selectors = [
+            "a[href*='/nav/achat/'][href*='.html']",
+            ".product-card a",
+            "[class*='product'] a[href*='/nav/achat/']",
+        ]
+
+        links = []
+        for selector in selectors:
+            links = soup.select(selector)
+            if links:
+                self.logger.info(f"Found {len(links)} products with selector: {selector}")
+                break
+
+        if not links:
+            self.logger.warning("No products found on Darty")
+            return []
+
+        seen_urls = set()
+
+        for link in links:
+            try:
+                href = link.get("href")
+                if not href:
+                    continue
+
+                full_url = self.make_absolute_url(href)
+
+                if full_url in seen_urls:
+                    continue
+                seen_urls.add(full_url)
+
+                # Extract title
+                title = link.get_text(strip=True)
+                if not title:
+                    title = link.get("title", "")
+
+                # Try in parent
+                if not title or len(title) < 3:
+                    parent = link.find_parent(["article", "li", "div"])
+                    if parent:
+                        title_elem = parent.select_one("h2, h3, .product-title, [class*='title']")
+                        if title_elem:
+                            title = title_elem.get_text(strip=True)
+
+                if not title or len(title) < 3:
+                    continue
+
+                # Filter by query
+                if not self.filter_by_query(title, query):
+                    continue
+
+                # Extract image
+                image_url = None
+                parent = link.find_parent(["article", "li", "div"])
+                if parent:
+                    img_selectors = [
+                        "img.product_img",
+                        "img.product-image",
+                        "img[class*='product']",
+                        "img",
+                    ]
+                    for img_sel in img_selectors:
+                        img = parent.select_one(img_sel)
+                        if img:
+                            image_url = self._get_image_src(img)
+                            if image_url:
+                                image_url = self.make_absolute_url(image_url)
+                                break
+
+                # Extract price
+                price = None
+                if parent:
+                    price_selectors = [
+                        ".price",
+                        "[class*='price'][class*='current']",
+                        "[data-testid='price']",
+                        "span[class*='prix']",
+                    ]
+                    for price_sel in price_selectors:
+                        price_elem = parent.select_one(price_sel)
+                        if price_elem:
+                            price = self.parse_price_text(price_elem.get_text(strip=True))
+                            if price:
+                                break
+
+                products.append(ProductResult(
+                    title=title,
+                    url=full_url,
+                    source=self.site_name,
+                    price=price,
+                    currency="EUR",
+                    image_url=image_url,
+                    snippet=f"Product from {self.site_name}"
+                ))
+
+            except Exception as e:
+                self.logger.error(f"Error parsing Darty product: {e}")
+                continue
+
+        self.logger.info(f"Extracted {len(products)} products from Darty")
+        return products

app/services/parsers/fnac_parser.py

@@ -0,0 +1,138 @@
+"""
+Fnac Parser - Specialized parser for Fnac.com
+"""
+
+from bs4 import BeautifulSoup
+
+from .base_parser import BaseParser, ProductResult
+
+
+class FnacParser(BaseParser):
+    """
+    Parser for Fnac.com
+
+    Key selectors:
+    - Product links: a[href*='/a'], a.Article-title, article a
+    - Images: img, picture source
+    """
+
+    def __init__(self):
+        super().__init__(
+            site_name="Fnac",
+            base_url="https://www.fnac.com"
+        )
+
+    def parse_search_results(self, html: str, query: str, search_url: str) -> list[ProductResult]:
+        """Parse Fnac search results"""
+        soup = BeautifulSoup(html, 'html.parser')
+        products = []
+
+        # Try multiple selectors
+        selectors = [
+            "a[href*='/a']",
+            "a.Article-title",
+            "article a",
+            ".Article-item a",
+        ]
+
+        links = []
+        for selector in selectors:
+            links = soup.select(selector)
+            if links:
+                self.logger.info(f"Found {len(links)} products with selector: {selector}")
+                break
+
+        if not links:
+            self.logger.warning("No products found on Fnac")
+            return []
+
+        seen_urls = set()
+
+        for link in links:
+            try:
+                href = link.get("href")
+                if not href:
+                    continue
+
+                # Filter Fnac URLs
+                if "/a" not in href:
+                    continue
+
+                full_url = self.make_absolute_url(href)
+
+                if full_url in seen_urls:
+                    continue
+                seen_urls.add(full_url)
+
+                # Extract title
+                title = link.get_text(strip=True)
+                if not title:
+                    title = link.get("title", "")
+
+                # Try aria-label
+                if not title:
+                    title = link.get("aria-label", "")
+
+                if not title or len(title) < 3:
+                    continue
+
+                # Filter by query
+                if not self.filter_by_query(title, query):
+                    continue
+
+                # Extract image
+                image_url = None
+                parent = link.find_parent(["article", "li", "div"])
+                if parent:
+                    # Try picture > source first
+                    picture = parent.find("picture")
+                    if picture:
+                        source = picture.find("source")
+                        if source and source.get("srcset"):
+                            image_url = source.get("srcset").split(",")[0].split()[0]
+                        if not image_url:
+                            img = picture.find("img")
+                            if img:
+                                image_url = self._get_image_src(img)
+
+                    # Fallback to img
+                    if not image_url:
+                        img = parent.find("img")
+                        if img:
+                            image_url = self._get_image_src(img)
+
+                    if image_url:
+                        image_url = self.make_absolute_url(image_url)
+
+                # Extract price
+                price = None
+                if parent:
+                    price_selectors = [
+                        ".Article-price",
+                        "[class*='price']",
+                        "span[class*='prix']",
+                        "[data-testid='price']",
+                    ]
+                    for price_sel in price_selectors:
+                        price_elem = parent.select_one(price_sel)
+                        if price_elem:
+                            price = self.parse_price_text(price_elem.get_text(strip=True))
+                            if price:
+                                break
+
+                products.append(ProductResult(
+                    title=title,
+                    url=full_url,
+                    source=self.site_name,
+                    price=price,
+                    currency="EUR",
+                    image_url=image_url,
+                    snippet=f"Product from {self.site_name}"
+                ))
+
+            except Exception as e:
+                self.logger.error(f"Error parsing Fnac product: {e}")
+                continue
+
+        self.logger.info(f"Extracted {len(products)} products from Fnac")
+        return products

app/services/parsers/generic_parser.py

@@ -0,0 +1,155 @@
+"""
+Generic Parser - Fallback parser for sites without specific implementation
+Uses configuration from search_config.py
+"""
+
+from bs4 import BeautifulSoup
+from urllib.parse import urljoin
+
+from .base_parser import BaseParser, ProductResult
+from app.core.search_config import SITE_CONFIGS
+
+
+class GenericParser(BaseParser):
+    """
+    Generic parser using configured selectors from search_config.py
+
+    This parser is used as a fallback for sites that don't have
+    a specialized parser implementation.
+    """
+
+    def __init__(self, site_key: str):
+        """
+        Initialize with site configuration
+
+        Args:
+            site_key: Key in SITE_CONFIGS dict
+        """
+        config = SITE_CONFIGS.get(site_key)
+        if not config:
+            raise ValueError(f"Unknown site key: {site_key}")
+
+        super().__init__(
+            site_name=config.get("name", site_key),
+            base_url=config.get("search_url", "").split("/")[0:3]  # Extract base URL
+        )
+
+        self.config = config
+        self.site_key = site_key
+
+        # Extract base_url properly
+        if "search_url" in config:
+            parts = config["search_url"].split("/")
+            if len(parts) >= 3:
+                self.base_url = f"{parts[0]}//{parts[2]}"
+
+    def parse_search_results(self, html: str, query: str, search_url: str) -> list[ProductResult]:
+        """
+        Parse search results using configured selectors
+
+        Uses:
+        - product_selector: CSS selector for product links
+        - product_image_selector: CSS selector for images (optional)
+        """
+        soup = BeautifulSoup(html, 'html.parser')
+        products = []
+
+        # Get product links using configured selector
+        product_selector = self.config.get("product_selector")
+        if not product_selector:
+            self.logger.error(f"No product_selector configured for {self.site_key}")
+            return []
+
+        links = soup.select(product_selector)
+
+        if not links:
+            self.logger.warning(f"No products found for {self.site_key} with selector: {product_selector}")
+            return []
+
+        self.logger.info(f"Found {len(links)} product links for {self.site_name}")
+
+        seen_urls = set()
+
+        for link in links:
+            try:
+                href = link.get("href")
+                if not href:
+                    continue
+
+                full_url = urljoin(search_url, href)
+
+                if full_url in seen_urls:
+                    continue
+                seen_urls.add(full_url)
+
+                # Extract title
+                title = link.get_text(strip=True)
+
+                # Fallback: try title attribute or alt in img
+                if not title:
+                    title = link.get("title", "")
+                if not title:
+                    img = link.find("img")
+                    if img:
+                        title = img.get("alt", "")
+
+                if not title or len(title) < 3:
+                    continue
+
+                # Filter by query (relaxed: at least one word match)
+                if not self.filter_by_query(title, query, strict=False):
+                    continue
+
+                # Extract image using configured selector
+                image_url = None
+                image_selector = self.config.get("product_image_selector")
+
+                if image_selector:
+                    # Try in link first
+                    img_elem = link.select_one(image_selector)
+
+                    # Try in parent container
+                    if not img_elem:
+                        parent = link.find_parent(["article", "li", "div"])
+                        if parent:
+                            img_elem = parent.select_one(image_selector)
+
+                    if img_elem:
+                        image_url = self._get_image_src(img_elem)
+
+                # Fallback: any img in link or parent
+                if not image_url:
+                    img = link.find("img")
+                    if img:
+                        image_url = self._get_image_src(img)
+
+                    if not image_url:
+                        parent = link.find_parent(["article", "li", "div"])
+                        if parent:
+                            img = parent.find("img")
+                            if img:
+                                image_url = self._get_image_src(img)
+
+                # Make image URL absolute
+                if image_url:
+                    # Skip invalid images
+                    if image_url.startswith("data:") or "1x1" in image_url or "placeholder" in image_url.lower():
+                        image_url = None
+                    else:
+                        image_url = urljoin(search_url, image_url)
+
+                products.append(ProductResult(
+                    title=title,
+                    url=full_url,
+                    source=self.site_name,
+                    image_url=image_url,
+                    currency="EUR",
+                    snippet=f"Product from {self.site_name}"
+                ))
+
+            except Exception as e:
+                self.logger.error(f"Error parsing product from {self.site_key}: {e}")
+                continue
+
+        self.logger.info(f"Extracted {len(products)} products from {self.site_name}")
+        return products

app/services/parsers/parser_factory.py

@@ -0,0 +1,96 @@
+"""
+Parser Factory - Selects the appropriate parser for each site
+"""
+
+import logging
+
+from .base_parser import BaseParser
+from .amazon_parser import AmazonParser
+from .cdiscount_parser import CdiscountParser
+from .fnac_parser import FnacParser
+from .darty_parser import DartyParser
+from .boulanger_parser import BoulangerParser
+from .generic_parser import GenericParser
+
+logger = logging.getLogger(__name__)
+
+
+class ParserFactory:
+    """
+    Factory for creating site-specific parsers
+
+    Automatically selects the specialized parser based on the site key,
+    or falls back to the generic parser for sites without specific implementation.
+    """
+
+    # Mapping of site keys to their specialized parsers
+    _PARSERS = {
+        "amazon.fr": AmazonParser,
+        "cdiscount.com": CdiscountParser,
+        "fnac.com": FnacParser,
+        "darty.com": DartyParser,
+        "boulanger.com": BoulangerParser,
+    }
+
+    # Cache for parser instances (singleton pattern)
+    _instances = {}
+
+    @classmethod
+    def get_parser(cls, site_key: str) -> BaseParser:
+        """
+        Get the appropriate parser for a site
+
+        Args:
+            site_key: Site identifier (e.g., "amazon.fr", "cdiscount.com")
+
+        Returns:
+            Parser instance (specialized or generic)
+        """
+        # Check cache first
+        if site_key in cls._instances:
+            return cls._instances[site_key]
+
+        # Check if we have a specialized parser
+        parser_class = cls._PARSERS.get(site_key)
+
+        if parser_class:
+            logger.info(f"✓ Using specialized parser for {site_key}: {parser_class.__name__}")
+            parser = parser_class()
+        else:
+            logger.info(f"⚠ No specialized parser for {site_key}, using GenericParser")
+            parser = GenericParser(site_key)
+
+        # Cache the instance
+        cls._instances[site_key] = parser
+
+        return parser
+
+    @classmethod
+    def register_parser(cls, site_key: str, parser_class: type[BaseParser]):
+        """
+        Register a new parser for a site
+
+        Args:
+            site_key: Site identifier
+            parser_class: Parser class (must inherit from BaseParser)
+        """
+        if not issubclass(parser_class, BaseParser):
+            raise ValueError(f"Parser class must inherit from BaseParser")
+
+        cls._PARSERS[site_key] = parser_class
+        # Clear cache for this site
+        if site_key in cls._instances:
+            del cls._instances[site_key]
+
+        logger.info(f"Registered parser {parser_class.__name__} for {site_key}")
+
+    @classmethod
+    def list_specialized_parsers(cls) -> list[str]:
+        """Get list of sites with specialized parsers"""
+        return list(cls._PARSERS.keys())
+
+    @classmethod
+    def clear_cache(cls):
+        """Clear parser instance cache"""
+        cls._instances.clear()
+        logger.info("Parser cache cleared")