scripts/scraper.py

import requests
from bs4 import BeautifulSoup
from pathlib import Path
import time
import json
from typing import Dict, List
import logging

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

class StalkerWikiScraper:
    def __init__(self, base_url: str = "https://stalker.fandom.com"):
        self.base_url = base_url
        self.session = requests.Session()
        self.session.headers.update({
            'User-Agent': 'Mozilla/5.0 (Educational Dataset Creation)'
        })
        
    def get_page(self, url: str) -> BeautifulSoup:
        """Fetch page with rate limiting"""
        time.sleep(1)  # Rate limiting
        response = self.session.get(url)
        response.raise_for_status()
        return BeautifulSoup(response.text, 'html.parser')

    def scrape_images(self) -> List[Dict]:
        """Scrape images and metadata from wiki"""
        data = []
        categories = ['Characters', 'Locations', 'Items']
        
        for category in categories:
            try:
                category_url = f"{self.base_url}/wiki/Category:{category}"
                soup = self.get_page(category_url)
                
                # Find all image containers
                images = soup.find_all('div', class_='image-thumbnail')
                
                for img in images:
                    try:
                        img_url = img.find('img')['src']
                        title = img.find('a')['title'] if img.find('a') else 'Unknown'
                        
                        data.append({
                            'image_url': img_url,
                            'category': category.lower(),
                            'metadata': {
                                'title': title,
                                'source': 'stalker_wiki',
                                'scrape_date': time.strftime('%Y-%m-%d')
                            }
                        })
                        
                    except Exception as e:
                        logger.error(f"Error processing image: {e}")
                        
            except Exception as e:
                logger.error(f"Error processing category {category}: {e}")
                
        return data

    def save_raw_data(self, data: List[Dict], output_dir: str = 'dataset'):
        """Save scraped data to JSON"""
        Path(output_dir).mkdir(exist_ok=True)
        output_file = Path(output_dir) / 'raw_data.json'
        
        with open(output_file, 'w') as f:
            json.dump(data, f, indent=2)
        
        logger.info(f"Saved {len(data)} entries to {output_file}")

if __name__ == "__main__":
    scraper = StalkerWikiScraper()
    data = scraper.scrape_images()
    scraper.save_raw_data(data)