fix: App organization improvement

app.py

@@ -1,4 +0,0 @@
-from src import app
-
-if __name__ == "__main__":
-    app.run()

debug.sh

@@ -1,3 +1,7 @@
 #!/bin/sh
 
-venv/bin/python -m flask run --debug -h 192.168.5.3
+venv/bin/python -m flask \
+    --app src \
+    run \
+        --debug \
+        -h 192.168.5.3

src/__init__.py

@@ -8,20 +8,18 @@ from pygments import formatters, highlight, lexers
 import markdown
 
 from src import (
-    # tango_controller,
     utils,
     config,
 )
 
+# TODO: Put the creation of the Flask application into a function
+#       https://flask.palletsprojects.com/en/3.0.x/tutorial/factory/
+#       def create_app() -> flask.Flask:
 app = Flask(
     __name__,
     template_folder="../templates",
     static_folder="../static",
 )
-# app.register_blueprint(tango_controller.bp)
-
-# Edit
-# Create file
 
 
 def get_tree() -> dict:

src/utils.py

@@ -0,0 +1,9 @@
+# ERRORS ######################################################################
+
+def err(message: str, code: int):
+    return {"error": message}, code
+
+
+ERR_500 = err("Internal server error", 500)
+ERR_403 = err("Not authorized", 403)
+ERR_404 = err("Not found", 404)