pi-bot-01
c0ec0f947b
- Switched from pandoc markdown to direct LaTeX for precise layout control - Each product gets its own page matching the mockup: • Large bordered product image (centered) • Product name (bold, left) • Stock + price line • Bordered UPC-A barcode (centered) • SKU and UPC text (small, left) - Fixed WebP→PNG image conversion (DG CDN serves WebP as .jpg) - Compile directly with pdflatex (pandoc strips images from raw .tex) - Output: 5.6MB PDF, 7 pages, 6 products with real images and barcodes
493 lines
17 KiB
Python
493 lines
17 KiB
Python
#!/usr/bin/env python3
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"""
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Pokemon Discovery (disco.py)
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Scrapes Pokemon TCG pack & tin products from Dollar General and generates a PDF catalog.
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Usage:
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python disco.py # Full run: scrape + generate PDF
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python disco.py --scrape-only # Just scrape, output JSON
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python disco.py --pdf-only FILE.json # Just generate PDF from existing JSON
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"""
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import json
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import os
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import re
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import subprocess
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import sys
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import time
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import requests
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from datetime import datetime
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from pathlib import Path
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from urllib.parse import urljoin, quote
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import barcode
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from barcode.writer import ImageWriter
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from bs4 import BeautifulSoup
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from PIL import Image, ImageDraw, ImageFont
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# ---------------------------------------------------------------------------
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# Configuration
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# ---------------------------------------------------------------------------
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HAR_FILE = "www.dollargeneral.com_Archive [26-03-21 15-14-28].har"
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BASE_URL = "https://www.dollargeneral.com"
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OUTPUT_DIR = Path("catalog_output")
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IMAGES_DIR = OUTPUT_DIR / "images"
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BARCODES_DIR = OUTPUT_DIR / "barcodes"
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HEADERS = {
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"User-Agent": "Mozilla/5.0 (X11; Linux x86_64; rv:148.0) Gecko/20100101 Firefox/148.0",
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"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
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"Accept-Language": "en-US,en;q=0.9",
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}
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# Keywords that identify card packs and tins (case-insensitive)
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CARD_TIN_KEYWORDS = ["pack", "tin", "booster", "card game", "tcg"]
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# ---------------------------------------------------------------------------
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# Step 1 — Product Discovery (from HAR file API responses)
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# ---------------------------------------------------------------------------
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def extract_products_from_har(har_path: str) -> list[dict]:
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"""Parse HAR file and extract all Pokemon products from API responses."""
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print(f"📦 Reading HAR file: {har_path}")
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with open(har_path, "r", encoding="utf-8") as f:
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har = json.load(f)
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api_url = "https://dggo.dollargeneral.com/omni/api/v2/category/search/provider"
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unique: dict[str, dict] = {}
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for entry in har["log"]["entries"]:
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req = entry["request"]
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resp = entry["response"]
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if req["url"] != api_url or req["method"] != "POST":
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continue
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text = resp.get("content", {}).get("text", "")
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if not text:
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continue
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try:
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data = json.loads(text)
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except json.JSONDecodeError:
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continue
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for item in data.get("ItemList", {}).get("Items", []):
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upc = str(item.get("UPC", ""))
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if upc and upc not in unique:
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unique[upc] = item
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print(f" Found {len(unique)} unique products in HAR data")
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return list(unique.values())
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def rootsv_to_sku(rootsv: str) -> str:
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"""Convert rootSV like '0419363_1' to SKU like '41936301'."""
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if not rootsv:
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return ""
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parts = rootsv.split("_")
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base = parts[0].lstrip("0")
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suffix = parts[1] if len(parts) > 1 else ""
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return base + suffix
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def build_product_url(upc: str) -> str:
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"""Construct a Dollar General product page URL from a UPC."""
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return f"{BASE_URL}/p/pokemon-product/{upc}"
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def filter_card_and_tin_products(raw_items: list[dict]) -> list[dict]:
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"""Keep only products whose description contains card/pack/tin keywords."""
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filtered = []
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for item in raw_items:
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desc = item.get("Description", "").lower()
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if any(kw in desc for kw in CARD_TIN_KEYWORDS):
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filtered.append(item)
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return filtered
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def normalize_product(item: dict) -> dict:
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"""Convert raw API item into a clean product dict."""
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upc = str(item.get("UPC", ""))
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rootsv = item.get("rootSV", "")
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sku = rootsv_to_sku(rootsv)
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qty = item.get("AvailableQty", 0)
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return {
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"title": item.get("Description", "Unknown Product"),
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"sku": sku,
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"upc": upc,
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"price": f"${item.get('Price', 0):.2f}",
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"stock": f"In Stock ({qty})" if qty and qty > 0 else "Out of Stock",
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"quantity": qty,
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"image_url": item.get("Image", ""),
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"rating": item.get("AverageRating", 0),
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"reviews": item.get("RatingReviewCount", 0),
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"url": build_product_url(upc),
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}
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# ---------------------------------------------------------------------------
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# Step 2 — Enrich from product pages (get real URL slug, extra details)
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# ---------------------------------------------------------------------------
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def enrich_from_product_page(product: dict) -> dict:
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"""Visit the actual product page to get the real URL and any missing data."""
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upc = product["upc"]
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sku = product["sku"]
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# Try to get the real product page
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# DG product pages can be accessed by UPC at search
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search_url = f"{BASE_URL}/search?q={upc}"
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try:
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resp = requests.get(search_url, headers=HEADERS, timeout=15)
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if resp.status_code == 200:
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soup = BeautifulSoup(resp.text, "html.parser")
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# Look for the canonical product link
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links = soup.select(f'a[href*="/p/"][href*="{upc}"]')
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if links:
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href = links[0].get("href", "")
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product["url"] = urljoin(BASE_URL, href)
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except Exception:
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pass
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# Also try visiting the product page directly by known pattern
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# The image URL contains the DG item number: dg-XXXXXXXX-1
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img_url = product.get("image_url", "")
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match = re.search(r"dg-(\d+)-", img_url)
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if match:
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dg_item = match.group(1)
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# This is the item number used in the SKU
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if not product.get("sku"):
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product["sku"] = dg_item
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return product
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# ---------------------------------------------------------------------------
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# Step 3 — Download images & generate barcodes
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# ---------------------------------------------------------------------------
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def download_image(url: str, dest: Path) -> Path | None:
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"""Download image from URL, convert to PNG for LaTeX compatibility."""
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if not url:
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return None
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try:
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resp = requests.get(url, headers=HEADERS, timeout=15)
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resp.raise_for_status()
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# Convert to PNG regardless of source format (handles WebP, etc.)
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from io import BytesIO
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img = Image.open(BytesIO(resp.content)).convert("RGB")
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png_dest = dest.with_suffix(".png")
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img.save(png_dest, "PNG")
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return png_dest
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except Exception as e:
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print(f" ⚠ Image download failed: {e}")
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return None
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def make_placeholder(dest: Path, text: str = "No Image") -> Path:
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"""Create a simple placeholder image."""
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img = Image.new("RGB", (300, 300), "#e0e0e0")
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draw = ImageDraw.Draw(img)
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try:
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font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 20)
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except Exception:
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font = ImageFont.load_default()
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bbox = draw.textbbox((0, 0), text, font=font)
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tw, th = bbox[2] - bbox[0], bbox[3] - bbox[1]
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draw.text(((300 - tw) / 2, (300 - th) / 2), text, fill="#888", font=font)
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img.save(dest)
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return dest
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def generate_barcode(sku: str, dest_dir: Path) -> Path | None:
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"""Generate a UPC-A barcode PNG from a SKU. Returns path to the .png file."""
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digits = re.sub(r"\D", "", sku)
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if not digits:
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return None
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# UPC-A needs exactly 11 digits (12th is check digit, auto-calculated)
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digits = digits[-11:].zfill(11)
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try:
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upc_cls = barcode.get_barcode_class("upca")
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bc = upc_cls(digits, writer=ImageWriter())
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# barcode lib appends .png automatically
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out = dest_dir / f"barcode_{sku}"
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saved = bc.save(
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str(out),
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options={
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"module_width": 0.3,
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"module_height": 15.0,
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"quiet_zone": 6.5,
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"font_size": 10,
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"text_distance": 5.0,
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},
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)
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return Path(saved)
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except Exception as e:
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print(f" ⚠ Barcode generation failed for {sku}: {e}")
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return None
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# ---------------------------------------------------------------------------
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# Step 4 — Generate PDF via pandoc
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# ---------------------------------------------------------------------------
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def generate_catalog_pdf(products: list[dict]) -> Path | None:
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"""Build a LaTeX file and convert to PDF with pandoc.
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Layout per page (matching product.png mockup):
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┌─────────────────────┐
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│ │
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│ Product Image │ ← large, centered, bordered
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│ │
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└─────────────────────┘
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Name ← product title, bold
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Stk ← stock / price info
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┌─────────────────────┐
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│ UPC-A Barcode │ ← centered, bordered
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└─────────────────────┘
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SKU: XXXXXXX ← small text
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UPC: XXXXXXXXXXXX ← small text
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"""
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timestamp_label = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
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timestamp_file = datetime.now().strftime("%Y%m%d_%H%M%S")
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# Build LaTeX document directly for precise layout control
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latex_lines = [
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r"\documentclass[11pt,letterpaper]{article}",
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r"\usepackage[margin=0.75in]{geometry}",
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r"\usepackage{graphicx}",
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r"\usepackage{fancybox}",
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r"\usepackage{xcolor}",
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r"\usepackage{parskip}",
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r"\usepackage[utf8]{inputenc}",
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r"\usepackage[T1]{fontenc}",
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r"\usepackage{lmodern}",
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r"\usepackage{hyperref}",
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r"\pagestyle{empty}",
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r"\begin{document}",
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"",
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# Title page
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r"\begin{center}",
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r"{\Huge\bfseries Pokemon TCG Product Catalog}\\[0.5cm]",
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r"{\Large Dollar General}\\[0.3cm]",
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r"{\large Generated: " + timestamp_label + r"}\\[0.2cm]",
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r"{\large " + str(len(products)) + r" Cards \& Tins}",
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r"\end{center}",
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r"\newpage",
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"",
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]
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for i, prod in enumerate(products, 1):
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title = prod["title"]
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sku = prod["sku"]
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upc = prod["upc"]
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price = prod["price"]
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stock = prod["stock"]
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# Download product image
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img_dest = IMAGES_DIR / f"product_{i}_{sku}.jpg"
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img_path = download_image(prod.get("image_url"), img_dest)
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if not img_path:
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img_path = make_placeholder(
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IMAGES_DIR / f"product_{i}_{sku}_placeholder.png", title[:30]
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)
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# Generate barcode
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bc_path = generate_barcode(sku, BARCODES_DIR)
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# Escape LaTeX special characters in text fields
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safe_title = (
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title.replace("&", r"\&")
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.replace("%", r"\%")
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.replace("$", r"\$")
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.replace("#", r"\#")
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.replace("_", r"\_")
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.replace("é", r"\'e")
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)
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safe_stock = stock.replace("&", r"\&")
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safe_price = price.replace("$", r"\$")
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# Absolute paths for LaTeX
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abs_img = str(img_path.resolve())
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abs_bc = str(bc_path.resolve()) if bc_path else None
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latex_lines += [
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r"\begin{center}",
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# Product image — large, centered, with border
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r"\fbox{\includegraphics[width=0.7\textwidth,height=0.45\textheight,keepaspectratio]{"
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+ abs_img
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+ r"}}",
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r"\end{center}",
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r"\vspace{0.4cm}",
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"",
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# Name — bold, large
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r"{\Large\bfseries " + safe_title + r"}",
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"",
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r"\vspace{0.15cm}",
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"",
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# Stock and price
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r"{\large " + safe_stock + r" \hfill " + safe_price + r"}",
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"",
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r"\vspace{0.5cm}",
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"",
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]
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# Barcode — centered, bordered
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if abs_bc:
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latex_lines += [
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r"\begin{center}",
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r"\fbox{\includegraphics[width=0.55\textwidth]{"
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+ abs_bc
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+ r"}}",
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r"\end{center}",
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r"\vspace{0.15cm}",
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"",
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]
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# SKU and UPC — small text
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latex_lines += [
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r"{\small SKU: \texttt{" + sku + r"}}\\",
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r"{\small UPC: \texttt{" + upc + r"}}",
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"",
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]
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# Page break between products (not after last)
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if i < len(products):
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latex_lines.append(r"\newpage")
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latex_lines.append("")
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print(f" ✅ [{i}/{len(products)}] {title}")
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latex_lines.append(r"\end{document}")
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# Write .tex file
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tex_file = OUTPUT_DIR / f"pokemon_catalog_{timestamp_file}.tex"
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tex_file.write_text("\n".join(latex_lines), encoding="utf-8")
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print(f"\n📝 LaTeX source: {tex_file}")
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# Compile to PDF with pdflatex directly (pandoc strips images from raw .tex)
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pdf_file = OUTPUT_DIR / f"pokemon_catalog_{timestamp_file}.pdf"
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for engine in ["pdflatex", "xelatex"]:
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try:
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result = subprocess.run(
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[engine, "-interaction=nonstopmode",
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f"-output-directory={OUTPUT_DIR}", str(tex_file)],
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capture_output=True, text=True, timeout=120,
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)
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if pdf_file.exists() and pdf_file.stat().st_size > 1000:
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# Clean up LaTeX temp files
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for ext in [".aux", ".log", ".out"]:
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tmp = pdf_file.with_suffix(ext)
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if tmp.exists():
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tmp.unlink()
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print(
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f"📄 PDF generated: {pdf_file} ({pdf_file.stat().st_size // 1024} KB)"
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)
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return pdf_file
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except FileNotFoundError:
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continue
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except Exception:
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continue
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print(f"⚠ PDF generation failed. LaTeX source available at: {tex_file}")
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return None
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# ---------------------------------------------------------------------------
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# Main
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# ---------------------------------------------------------------------------
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def main():
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args = sys.argv[1:]
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# Handle --pdf-only mode
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if "--pdf-only" in args:
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idx = args.index("--pdf-only")
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json_file = args[idx + 1] if idx + 1 < len(args) else None
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if not json_file or not Path(json_file).exists():
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print(f"Usage: {sys.argv[0]} --pdf-only <products.json>")
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sys.exit(1)
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products = json.loads(Path(json_file).read_text())
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for d in [OUTPUT_DIR, IMAGES_DIR, BARCODES_DIR]:
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d.mkdir(parents=True, exist_ok=True)
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print(f"\n🖨️ Generating PDF from {json_file} ({len(products)} products)...")
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generate_catalog_pdf(products)
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return
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scrape_only = "--scrape-only" in args
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# --- Banner ---
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timestamp_file = datetime.now().strftime("%Y%m%d_%H%M%S")
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print("=" * 60)
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print(" 🔍 Pokemon Discovery (pokemon-disco)")
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print(" Dollar General — Pokemon TCG Cards & Tins")
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print(f" {datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
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print("=" * 60)
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# --- Step 1: Extract from HAR ---
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if not Path(HAR_FILE).exists():
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print(f"\n❌ HAR file not found: {HAR_FILE}")
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print(" Capture a HAR file from the Pokemon page in your browser")
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print(" and place it in the project directory.")
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sys.exit(1)
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raw_items = extract_products_from_har(HAR_FILE)
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# --- Step 2: Filter for Cards & Tins ---
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print(f"\n🎯 Filtering for card packs and tins...")
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card_tin_items = filter_card_and_tin_products(raw_items)
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print(f" {len(card_tin_items)} of {len(raw_items)} products match (pack/tin/booster/tcg)")
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if not card_tin_items:
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print("❌ No card or tin products found.")
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sys.exit(1)
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# Show what was filtered out
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excluded = [i for i in raw_items if i not in card_tin_items]
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if excluded:
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print(f"\n Excluded {len(excluded)} non-card/tin products:")
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for item in excluded:
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print(f" ✗ {item.get('Description', '?')}")
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# --- Step 3: Normalize ---
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print(f"\n📋 Processing {len(card_tin_items)} products...")
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products = [normalize_product(item) for item in card_tin_items]
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# Print summary table
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print()
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print(f" {'#':<3} {'Title':<55} {'SKU':<12} {'Price':<8} {'Stock'}")
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print(f" {'—'*3} {'—'*55} {'—'*12} {'—'*8} {'—'*15}")
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for i, p in enumerate(products, 1):
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title = p['title'][:53]
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print(f" {i:<3} {title:<55} {p['sku']:<12} {p['price']:<8} {p['stock']}")
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# --- Step 4: Save JSON ---
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json_file = f"pokemon_tcg_products_{timestamp_file}.json"
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Path(json_file).write_text(json.dumps(products, indent=2, ensure_ascii=False))
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print(f"\n💾 Product data: {json_file}")
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if scrape_only:
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print("\n✅ Scrape complete (--scrape-only). Run with --pdf-only to generate catalog.")
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return
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# --- Step 5: Generate PDF ---
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for d in [OUTPUT_DIR, IMAGES_DIR, BARCODES_DIR]:
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d.mkdir(parents=True, exist_ok=True)
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print(f"\n🖨️ Generating PDF catalog...")
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pdf_path = generate_catalog_pdf(products)
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# --- Done ---
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print("\n" + "=" * 60)
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if pdf_path:
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|
print(f" ✅ COMPLETE!")
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|
print(f" 📄 PDF Catalog: {pdf_path}")
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|
print(f" 💾 Product JSON: {json_file}")
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|
print(f" 🏷️ Barcodes: {BARCODES_DIR}/")
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|
print(f" 🖼️ Images: {IMAGES_DIR}/")
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|
else:
|
|
print(f" ⚠ PDF generation failed — markdown file available in {OUTPUT_DIR}/")
|
|
print(f" 💾 Product JSON: {json_file}")
|
|
print("=" * 60)
|
|
|
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|
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if __name__ == "__main__":
|
|
main()
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