auto-schedule-pro-v2: add clear option to remove custom setting value and clean up old code remnants

.gitignore

@@ -1,3 +1,4 @@
 config/*
 modules/irc-bridge/error.log
 __pycache__/
+modules/auto-schedule-pro-v2/preference-db

modules/auto-schedule-pro-v2/main.py

@@ -79,6 +79,28 @@ def set_preference_by_id(user_id, name, value):
     writefile(f"preference-db/{user_id}.json", final_data)
 
 
+def clear_preference_by_id(user_id, name, value):
+    if not os.path.exists(module_path + "preference-db/"):
+        os.mkdir(module_path + "preference-db/")
+
+    preferences = {}
+
+    if os.path.exists(module_path + f"preference-db/{user_id}.json"):
+        try:
+            raw_prefs = readfile(f"preference-db/{user_id}.json")
+            preferences = json.loads(raw_prefs)
+        except Exception as e:
+            preferences = {}
+    else:
+        preferences = {}
+
+    if name in preferences:
+        del preferences[name]
+
+    final_data = json.dumps(preferences)
+    writefile(f"preference-db/{user_id}.json", final_data)
+
+
 def load_template(template, part):
     return readfile(f"templates/{template}/{part}.msg")
 
@@ -131,33 +153,6 @@ def get_name_of_lesson_type(lesson_type):
     if lesson_type in lesson_types_to_strings:
         return lesson_types_to_strings[lesson_type]
 
-'''
-def generate_lesson_description(lesson, start_datetime, end_datetime, current_day, current_week, overrides={},
-        custom_name_prefix="<b>Назва</b>"):
-    output_settings = {"name": True, "date": True, "teacher": True, "link": True, "comment": True}
-    output_settings.update(overrides)
-
-    result = ""
-
-    if output_settings['name']:
-        result += f"{custom_name_prefix}: {escaped_string_html(lesson['name'])} ({escaped_string_html(get_name_of_lesson_type(lesson['type']))})\n"
-
-    if output_settings['date']:
-        human_readable_date = get_human_readable_date(start_datetime, end_datetime,
-                                                      current_day, current_week)
-        result += f"<b>Дата</b>: {escaped_string_html(human_readable_date)}\n"
-
-    if output_settings['teacher']:
-        result += f"<b>Викладач</b>: {escaped_string_html(lesson['teacher'])}\n"
-
-    if output_settings['link']:
-        result += f"<b>Посилання</b>: {escaped_string_html(lesson['link'])}\n"
-
-    if output_settings['comment'] and 'comment' in lesson:
-        result += f"<b>Примітка</b>: {escaped_string_html(lesson['comment'])}\n"
-
-    return result
-'''
 
 def generate_lesson_description(lesson, start_datetime, end_datetime, current_day, current_week, overrides={},
         custom_name_prefix="Назва", template="legacy-vibrant"):
@@ -201,6 +196,7 @@ def generate_lesson_description(lesson, start_datetime, end_datetime, current_da
 
         return total_result
 
+
 def get_schedule_data_from(filename):
     raw_schedule = json.loads(readfile(filename))
 
@@ -253,41 +249,6 @@ def get_lesson_description(schedule, reference_time, lesson_time, current_day, c
 
     lesson_start_datetime = datetime.fromtimestamp(reference_time + lesson_time)
     lesson_end_datetime = datetime.fromtimestamp(reference_time + lesson_time + 5400)
-    '''
-    if lesson_record.__class__ == dict:
-        if force_date_at_top:
-            user_defined_overrides = dict(overrides)
-            internal_overrides = dict(overrides)
-            internal_overrides['date'] = False
-
-            description = generate_lesson_description(lesson_record, lesson_start_datetime, lesson_end_datetime, current_day,
-                    current_week, overrides=internal_overrides)
-
-            if 'date' in user_defined_overrides and not user_defined_overrides['date']:
-                return description
-            else:
-                human_readable_date = get_human_readable_date(lesson_start_datetime, lesson_end_datetime,
-                        current_day, current_week)
-                return f"<b><u>{human_readable_date.capitalize()}</u></b>:\n" + description
-        else:
-            return generate_lesson_description(lesson_record, lesson_start_datetime, lesson_end_datetime, current_day,
-                    current_week, overrides=overrides)
-
-    elif lesson_record.__class__ == list:
-        user_defined_overrides = dict(overrides)
-        internal_overrides = dict(overrides)
-        internal_overrides['date'] = False
-
-        descriptions = [generate_lesson_description(i, lesson_start_datetime, lesson_end_datetime, current_day,
-                current_week, overrides=internal_overrides, custom_name_prefix=custom_name_prefix) for i in lesson_record]
-
-        if 'date' in user_defined_overrides and not user_defined_overrides['date']:
-            return "\n".join(descriptions)
-        else:
-            human_readable_date = get_human_readable_date(lesson_start_datetime, lesson_end_datetime,
-                    current_day, current_week)
-            return f"<b><u>{human_readable_date.capitalize()}</u></b>:\n" + "\n".join(descriptions)
-    '''
 
     return generate_lesson_description(lesson_record, lesson_start_datetime, lesson_end_datetime, current_day,
             current_week, overrides=overrides, custom_name_prefix=custom_name_prefix, template=template)
@@ -366,12 +327,12 @@ def process(message, path):
 
         return f"<b><u>Пари у {WEEKDAYS_ACCUSATIVE[selected_day % 7]}</u></b>:\n\n\n" + "\n".join(lesson_descriptions_list), "HTML"
 
-    elif base_command == "!schedule-ctl":
+    elif base_command == "!schedule-ctl" and len(full_command) >= 2:
         if full_command[1] == "list":
             prefs = get_all_preferences_by_id(message.from_user.id)
             return "Ваші персональні налаштування:\n" + '\n'.join([f"- {k} = {v}" for k, v in prefs.items()]), "HTML"
 
-        elif full_command[1] == "set":
+        elif full_command[1] == "set" and len(full_command) == 4:
             prefs = get_all_preferences_by_id(message.from_user.id)
 
             if full_command[2] in prefs:
@@ -389,9 +350,13 @@ def process(message, path):
             else:
                 return f"Такого налаштування не існує; переглянути наявні налаштування можна за допомогою команди <u>!schedule-ctl list</u>", "HTML"
 
-        elif full_command[1] == "get":
+        elif full_command[1] == "get" and len(full_command) == 3:
             requested_preference = get_preference_by_id(message.from_user.id, full_command[2])
             return f"Налаштування {full_command[2]} має значення {requested_preference}", "HTML"
 
+        elif full_command[1] == "clear" and len(full_command) == 3:
+            reset_preference_by_id(message.from_user.id, full_command[2])
+            return f"Очищено значення для налаштування {full_command[2]}, надалі для нього використовуватиметься стандартне значення", "HTML"
+
         else:
-            return "Такої команди не існує", "HTML"
+            return "Такої команди не існує (або був використаний помилковий синтаксис)", "HTML"