added script path detection

prepare for PyInstaller

jinja_env.py

@@ -1,8 +1,17 @@
+import sys
+from pathlib import Path
 from jinja2 import Environment, FileSystemLoader
 from config import Config
 
 # Prepare template rendering engine
-env = Environment(loader=FileSystemLoader(Config.TEMPLATES_DIR))
+if getattr(sys, 'frozen', False):
+    # Running fron Pyinstaller-packed binary
+    base_dir =  Path(sys._MEIPASS)
+else:
+    # Running as a plain Python app
+    base_dir = Path(__file__).resolve().parent    
+        
+env = Environment(loader=FileSystemLoader(f"{base_dir}/{Config.TEMPLATES_DIR}"))
 env.globals['header_image'] = Config.HEADER_IMAGE
 index_template = env.get_template("index.html")
-content_item_template = env.get_template("content_item.html")     
+content_item_template = env.get_template("content_item.html")