feat: end-point for deal document generation

utils/code128.py

@@ -0,0 +1,35 @@
+import re
+
+def to_set_c(text):
+    # Match pairs of digits and map them to the appropriate ASCII characters
+    return ''.join([
+        chr(int(ascii_code) + 100 if int(ascii_code) > 94 else int(ascii_code) + 32)
+        for ascii_code in re.findall(r'\d{2}', text)
+    ])
+
+def check_sum_128(data, start_code):
+    sum_value = start_code
+    for i, char in enumerate(data):
+        code = ord(char)
+        value = code - 100 if code > 199 else code - 32
+        sum_value += (i + 1) * value
+
+    checksum = (sum_value % 103) + 32
+    if checksum > 126:
+        checksum += 68
+    return chr(checksum)
+
+def encode128(text, code_abc="B"):
+    start_code = chr(ord(code_abc.upper()) + 138)
+    stop = chr(206)
+
+    if code_abc.upper() == 'C':
+        text = to_set_c(text)
+
+    check = check_sum_128(text, ord(start_code) - 100)
+
+    # Replace spaces with ASCII 194
+    text = text.replace(" ", chr(194))
+
+    return start_code + text + check + stop
+

utils/images_fetcher.py

@@ -0,0 +1,20 @@
+import asyncio
+import base64
+from typing import List, Tuple
+
+import aiohttp
+
+
+async def fetch_image(url: str) -> str:
+    async with aiohttp.ClientSession() as session:
+        async with session.get(url) as response:
+            if response.status == 200:
+                image_data = await response.read()
+                return base64.b64encode(image_data).decode("utf-8")
+            else:
+                return ""
+
+
+async def fetch_images(urls: List[str]) -> Tuple[str]:
+    tasks = [fetch_image(url) for url in urls]
+    return await asyncio.gather(*tasks)