fix all warnings

app/src/main.gd

@@ -22,7 +22,7 @@ const PDF_LINK_KEY: String = "pdf presentation"
 @onready var statistics_label: Label = $Result/Statistics
 @onready var progress_bar: ProgressBar = $Result/ProgressBar
 @onready var http: HTTPRequest = $HTTPRequest
-@onready var result: VBoxContainer = $Result
+@onready var result_container: VBoxContainer = $Result
 
 @onready var errors: RichTextLabel = $Result/Errors
 @onready var errors2: RichTextLabel = $Result/Errors2
@@ -66,8 +66,9 @@ var include_title: bool
 var include_time: bool
 var include_special_characters: bool
 
-
+# Called when the node enters the scene tree for the first time.
 func _ready() -> void:
+ # only allow alphanumeric values, no special characters
  regex.compile("\\w+")
 
  _load_config()
@@ -76,13 +77,15 @@ func _ready() -> void:
  title_checkbox.button_pressed = include_title
  regex_checkbox.button_pressed = include_special_characters
 
+ # load saved pdf path, if exists
  if not pdf_path.is_empty():
  file_dialog.current_path = pdf_path
 
  _update_example()
 
 
-func _process(delta: float) -> void:
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(_delta: float) -> void:
  if counter_done < counter_pdf:
  progress_label.text = "Downloading %d of %d..."%[counter_done, counter_pdf]
  elif counter_pdf == 0:
@@ -110,10 +113,6 @@ func _save_config(path: String) -> void:
  config.save("user://settings.cfg")
 
 
-func _on_submit_pressed() -> void:
- file_dialog.show()
-
-
 func _on_website_file_dialog_file_selected(path: String) -> void:
  settings.hide()
  _save_config(path.get_base_dir())
@@ -123,7 +122,7 @@ func _on_website_file_dialog_file_selected(path: String) -> void:
 
  _download_pdfs()
 
- result.show()
+ result_container.show()
 
 
 func _read_csv(path: String) -> void:
@@ -220,7 +219,8 @@ func _download_pdfs() -> void:
  errors.append_text(str(errors.get_line_count()) + ") " + data[id]["title"] + "\n")
 
 
-func _request_completed(result, response_code, headers, body: PackedByteArray, talk: Dictionary) -> void:
+# callback when http request for PDF downlaod is finished
+func _request_completed(_result, _response_code, _headers, body: PackedByteArray, talk: Dictionary) -> void:
  if talk["track"].length() == 0:
  print("Talk with no room assigned: \n" + talk["title"])
  counter_done += 1
@@ -269,10 +269,6 @@ func _escape_string(string: String) -> String:
  return escaped
 
 
-func _on_restart_pressed() -> void:
- get_tree().change_scene_to_file("res://src/Main.tscn")
-
-
 func _is_approved(line: Array) -> bool:
  var date: String = line[keys_index[DATE_KEY]]
  var time: String = line[keys_index[TIME_KEY]]
@@ -283,21 +279,6 @@ func _is_approved(line: Array) -> bool:
  return true
 
 
-func _on_time_checkbox_toggled(button_pressed) -> void:
- include_time = button_pressed
- _update_example()
-
-
-func _on_title_check_box_toggled(button_pressed) -> void:
- include_title = button_pressed
- _update_example()
-
-
-func _on_regex_checkbox_toggled(button_pressed) -> void:
- include_special_characters = button_pressed
- _update_example()
-
-
 func _update_example() -> void:
  var time: String = "1030"
  var title: String = "Talk about $$$"
@@ -337,5 +318,28 @@ func _is_valid_date(date: String) -> bool:
  return time > 0
 
 
-func _on_close_pressed():
- get_tree().quit()
+##########################
+# buttons/checkboxes events
+##########################
+
+func _on_time_checkbox_toggled(button_pressed) -> void:
+ include_time = button_pressed
+ _update_example()
+
+
+func _on_title_check_box_toggled(button_pressed) -> void:
+ include_title = button_pressed
+ _update_example()
+
+
+func _on_regex_checkbox_toggled(button_pressed) -> void:
+ include_special_characters = button_pressed
+ _update_example()
+
+
+func _on_submit_pressed() -> void:
+ file_dialog.show()
+
+
+func _on_restart_pressed() -> void:
+ get_tree().change_scene_to_file("res://src/main.tscn")