refactor: remove old 'adventures' pages (hedyorg#1357)

The pages under `/hedy/adventures` are no longer used. Their code
can be removed.

Co-authored-by: Felienne <[email protected]>

app.py

@@ -763,71 +763,6 @@ def quiz_feedback(level_source, question_nr):
                            menu=render_main_menu('adventures'),
                            auth=TRANSLATIONS.data[g.lang]['Auth'])
 
-
-# Adventure mode
-@app.route('/hedy/adventures', methods=['GET'])
-def adventures_list():
-    adventures = load_adventure_for_language(g.lang)
-    menu = render_main_menu('adventures')
-    return render_template('adventures.html', adventures=adventures, menu=menu, auth=TRANSLATIONS.get_translations(g.lang, 'Auth'))
-
-@app.route('/hedy/adventures/<adventure_name>', methods=['GET'], defaults={'level': 1})
-@app.route('/hedy/adventures/<adventure_name>/<level>', methods=['GET'])
-def adventure_page(adventure_name, level):
-
-    user = current_user()
-    level = int(level)
-    adventures = load_adventure_for_language(g.lang)
-
-    # If requested adventure does not exist, return 404
-    if not adventure_name in adventures:
-        return utils.page_404 (TRANSLATIONS, render_main_menu('adventures'), current_user()['username'], g.lang, TRANSLATIONS.get_translations (g.lang, 'ui').get ('no_such_adventure'))
-
-    adventure = adventures[adventure_name]
-
-    # If no level is specified(this will happen if the last element of the path(minus the query parameter) is the same as the adventure_name)
-    if re.sub(r'\?.+', '', request.url.split('/')[len(request.url.split('/')) - 1]) == adventure_name:
-        # If user is logged in, check if they have a program for this adventure
-        # If there are many, note the highest level for which there is a saved program
-        desired_level = 0
-        if user['username']:
-            existing_programs = DATABASE.programs_for_user(user['username'])
-            for program in existing_programs:
-                if 'adventure_name' in program and program['adventure_name'] == adventure_name and program['level'] > desired_level:
-                    desired_level = program['level']
-            # If the user has a saved program for this adventure, redirect them to the level with the highest adventure
-            if desired_level != 0:
-                return redirect(request.url.replace('/' + adventure_name, '/' + adventure_name + '/' + str(desired_level)), code=302)
-        # If user is not logged in, or has no saved programs for this adventure, default to the lowest level available for the adventure
-        if desired_level == 0:
-            for key in adventure['levels'].keys():
-                if isinstance(key, int) and(desired_level == 0 or desired_level > key):
-                    desired_level = key
-        level = desired_level
-
-    # If requested level is not in adventure, return 404
-    if not level in adventure['levels']:
-        return utils.page_404 (TRANSLATIONS, render_main_menu('adventures'), current_user()['username'], g.lang, TRANSLATIONS.get_translations (g.lang, 'ui').get ('no_such_adventure_level'))
-
-    adventures_for_level = load_adventures_per_level(g.lang, level)
-    level_defaults_for_lang = LEVEL_DEFAULTS[g.lang]
-    defaults = level_defaults_for_lang.get_defaults_for_level(level)
-    max_level = level_defaults_for_lang.max_level()
-
-    g.prefix = '/hedy'
-    return hedyweb.render_code_editor_with_tabs(
-        level_defaults=defaults,
-        max_level=max_level,
-        level_number=level,
-        menu=render_main_menu('hedy'),
-        translations=TRANSLATIONS,
-        version=version(),
-        adventures=adventures_for_level,
-        restrictions='',
-        # The relevant loaded program will be available to client-side js and it will be loaded by js.
-        loaded_program='',
-        adventure_name=adventure_name)
-
 # routing to index.html
 @app.route('/ontrack', methods=['GET'], defaults={'level': '1', 'step': 1})
 @app.route('/onlinemasters', methods=['GET'], defaults={'level': '1', 'step': 1})