🎉 initial commit

app.py

@@ -0,0 +1,84 @@
+import hashlib
+import io
+from pathlib import Path
+from typing import Tuple
+
+import pytesseract
+import requests
+from PIL import Image
+from bs4 import BeautifulSoup
+from flask import Flask, render_template, make_response
+
+app = Flask(__name__)
+
+url = 'https://bueze.de/unser-mittagstisch/'
+image_hash_file = Path('.menu_image_hash')
+menu_text = Path("./menu.txt")
+
+def find_image_url():
+    with requests.get(url) as response:
+        response.raise_for_status()
+        soup = BeautifulSoup(response.text, 'html.parser')
+        image = soup.find('figure', class_='wp-block-image').find('img')
+        return image.get('src')
+
+def get_image_bytes(image_url):
+    with requests.get(image_url, stream=True) as response:
+        response.raise_for_status()
+        return response.raw.read()
+
+def is_same_hash(img_bytes):
+    if image_hash_file.exists():
+        previous_hash = image_hash_file.read_text()
+        new_hash = hashlib.md5(img_bytes).hexdigest()
+        return previous_hash == new_hash
+    return False
+
+def write_html(text):
+    with menu_text.open('w') as f:
+        f.write(text)
+
+def get_menu() -> Tuple[Path, str]:
+    """
+    Get the menu text and image URL.
+    :return: menu_text, image_url
+    """
+    image_url = find_image_url()
+    image_bytes = get_image_bytes(image_url)
+
+    # Check if the image has changed
+    if is_same_hash(image_bytes) and menu_text.exists():
+        print('No new image')
+
+    # If the image has changed, write the new hash to the file and extract the text
+    else:
+        image_hash_file.write_text(hashlib.md5(image_bytes).hexdigest())
+        image = Image.open(io.BytesIO(image_bytes))
+        text = pytesseract.image_to_string(image, lang='deu')
+        print('New image found')
+        write_html(text)
+
+    return menu_text, image_url
+
+@app.route('/')
+def root():
+    """
+    This view function returns the menu text and image as a web page.
+    """
+    text, image = get_menu()
+    lines = menu_text.read_text().splitlines()
+    html = render_template('base.html',
+                           lines=lines,
+                           img=image,
+                           text=text.read_text())
+    return make_response(html, 200)
+
+@app.route('/plain')
+def plain():
+    """
+    This view function returns the menu text as plain text.
+    """
+    text, _ = get_menu()
+    response = make_response(text.read_text(), 200)
+    response.mimetype = 'text/plain'
+    return response