Added the chain Yeinot Bitan (also to tests).

Changed price with promos to include only regular promotions.
Added filtering of promotions including too many items.

chains/yeinot_bitan.py

@@ -0,0 +1,35 @@
+import re
+from datetime import datetime
+
+import numpy as np
+import requests
+from bs4 import BeautifulSoup
+
+from supermarket_chain import SupermarketChain
+
+
+class YeinotBitan(SupermarketChain):
+    _date_hour_format = "%Y-%m-%d %H:%M:%S"
+
+    @staticmethod
+    def get_download_url_or_path(
+        store_id: int,
+        category: SupermarketChain.XMLFilesCategory,
+        session: requests.Session,
+    ) -> str:
+        today_date_suffix = datetime.today().date().strftime("%Y%m%d")
+        url = f"http://publishprice.ybitan.co.il/{today_date_suffix}/"
+        req_res = requests.get(url)
+        soup = BeautifulSoup(req_res.text, features="lxml")
+        promo_tags = soup.findAll(
+            "a",
+            attrs={
+                "href": re.compile(
+                    rf"^{category.name.replace('s', '')}.*-{store_id:04d}-"
+                )
+            },
+        )
+        most_recent_tag_ind = np.argmax(
+            [int(promo_tag["href"][-7:-3]) for promo_tag in promo_tags]
+        )
+        return url + promo_tags[most_recent_tag_ind]["href"]