From a2b5b10625126b7e98643af9fe40569c9e004047 Mon Sep 17 00:00:00 2001
From: salmonik <raisersoft@proton.me>
Date: Sat, 18 Apr 2026 00:24:50 +0200
Subject: refactor + preparing bot for public use

Signed-off-by: salmonik <raisersoft@proton.me>
---
 cogs/qr.py | 46 +++++++++++++++++++++++++++++-----------------
 1 file changed, 29 insertions(+), 17 deletions(-)

(limited to 'cogs/qr.py')

diff --git a/cogs/qr.py b/cogs/qr.py
index 058dac8..c1fd499 100644
--- a/cogs/qr.py
+++ b/cogs/qr.py
@@ -15,14 +15,26 @@ from discord.ext import commands
 
 logger = logging.getLogger(__name__)
 
-try:
-    from PIL import Image
-    from pyzbar.pyzbar import decode as decode_qr
-
-    DECODE_AVAILABLE = True
-except ImportError:
-    DECODE_AVAILABLE = False
-    logger.warning("pyzbar or PIL not available, decode command will be disabled")
+_pil_image = None
+_decode_func = None
+_decode_available = False
+
+
+def _ensure_qr():
+    global _pil_image, _decode_func, _decode_available
+    
+    if _pil_image is not None:
+        return _decode_available
+    
+    try:
+        from PIL import Image
+        from pyzbar.pyzbar import decode as _decode_func
+        _pil_image = Image
+        _decode_available = True
+    except ImportError:
+        _decode_available = False
+        logger.warning("pyzbar or PIL not available, decode command will be disabled")
+    return _decode_available
 
 
 class QR(commands.Cog):
@@ -50,10 +62,9 @@ class QR(commands.Cog):
     ):
         await ctx.defer()
 
-        temp_dir = os.path.join(os.path.dirname(os.path.dirname(__file__)), "temp")
-        os.makedirs(temp_dir, exist_ok=True)
+        from cogs.utils.temp import get_temp_dir
         temp_path = os.path.join(
-            temp_dir, f"qr_{os.getpid()}_{asyncio.get_event_loop().time()}.png"
+            get_temp_dir(), f"qr_{os.getpid()}_{asyncio.get_event_loop().time()}.png"
         )
 
         try:
@@ -75,7 +86,7 @@ class QR(commands.Cog):
         """Generate QR code (runs in executor)"""
         qr = qrcode.QRCode(
             version=1,
-            error_correction=qrcode.constants.ERROR_CORRECT_L,
+            error_correction=qrcode.constants.ERROR_CORRECT_L,  # type: ignore[attr-defined]
             box_size=10,
             border=4,
         )
@@ -92,7 +103,7 @@ class QR(commands.Cog):
             discord.Attachment, "Obrazek z kodem QR", required=True
         ),
     ):
-        if not DECODE_AVAILABLE:
+        if not _ensure_qr():
             await ctx.respond(
                 "Dekodowanie nie jest dostępne (brak biblioteki pyzbar)", ephemeral=True
             )
@@ -126,11 +137,12 @@ class QR(commands.Cog):
 
     def _decode_qr(self, image_path):
         """Decode QR code from image (runs in executor)"""
-        try:
-            from PIL import Image
+        if not _ensure_qr():
+            return None
 
-            img = Image.open(image_path)
-            decoded_list = decode_qr(img)
+        try:
+            img = _pil_image.open(image_path)
+            decoded_list = _decode_func(img)
             if decoded_list:
                 return decoded_list[0].data.decode("utf-8")
         except Exception as e:
-- 
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