def home():
utterance = request.args.get('utterance')
user_session_id = request.args.get('user_session_id')
key_session_id = "session_id"
web_api = WebApi(utterance, new_session)
active_module_node = dict()
last_active_node = None
# check for last active state for a user
active_state_nodes, active_bot, active_module_id = web_api.get_user_active_state(
key_session_id, user_session_id)
if active_state_nodes:
if active_module_id in active_state_nodes:
last_active_node = active_state_nodes[active_module_id]
if not active_bot:
bot = initialize_bot()
else:
bot = active_bot
chat = ConsoleChatInterface(bot)
if not utterance or user_session_id == "null":
if user_session_id == "null": # for new user coming first time
session_id = str(uuid.uuid4())
final_api_output = add_user_and_start_chat(
web_api, chat, active_state_nodes, key_session_id, session_id,
last_active_node, bot, active_module_id, '')
logger.info(json.dumps(final_api_output))
else: # if user open new tab while old tab is also open i.e. session exist
session_id = user_session_id
if not web_api.user_session_exist(key_session_id, session_id):
final_api_output = add_user_and_start_chat(
web_api, chat, active_state_nodes, key_session_id,
session_id, last_active_node, bot, active_module_id, '')
logger.info(json.dumps(final_api_output))
else: # for last user utterance as first bot message
last_user_utterance = web_api.get_last_user_utterance(
key_session_id, user_session_id)
if not last_user_utterance: # if user open new tab without any chat in old tab
final_api_output = chat.start_chat('', active_state_nodes,
last_active_node,
active_module_id,
new_session, session_id)
logger.info(json.dumps(final_api_output))
else:
active_node, module_id, final_api_output = chat.start_chat(
last_user_utterance, active_state_nodes,
last_active_node, active_module_id, new_session,
session_id)
logger.info(json.dumps(final_api_output))
else:
session_id = user_session_id
active_node, module_id, final_api_output = chat.start_chat(
utterance, active_state_nodes, last_active_node, active_module_id,
new_session, session_id)
if active_node and module_id and active_bot:
last_active_node = active_node
active_module_id = module_id
active_user_bot = active_bot
if web_api.user_session_exist(key_session_id, session_id):
web_api.update_last_user_utterance(key_session_id, user_session_id)
if active_node and module_id and active_bot:
web_api.update_user_active_state(key_session_id,
user_session_id, active_node,
active_bot, module_id)
logger.info(json.dumps(final_api_output))
# if last_active_node:
# web_api.print_active_tree(last_active_node)
chatbot_output = {"chatbot_output": final_api_output}
user_session_id = {str(key_session_id): session_id}
final_api_output = web_api.finalize_api_output(chatbot_output,
user_session_id)
return jsonify(final_api_output)
