from config import settings
from langchain_mongodb.chat_message_histories import MongoDBChatMessageHistory
import json
import random
def create_new_session(user_id):
    mongodb_chatbot_message_collection = settings.mongodb_db.get_collection(settings.MONGODB_DB_USER_SESSIONS_COLLECTION_NAME)
    
    # print("********************************************************** NEW SESSION *******************************************************************")

    try:
        user_sessions = mongodb_chatbot_message_collection.find_one({"user_id": user_id})
        # print(user_sessions, "LAST")
        
        if user_sessions:
            session_ids = user_sessions['session_id']
            session_id = user_id + "_bmoxi_" + str(int(session_ids[-1].split("_")[-1])+1)
            # print("session_id:", session_id)
            mongodb_chatbot_message_collection.update_one({ "user_id": user_id },{"$push": {"session_id":session_id}})
            
            return session_id
        else:
            mongodb_chatbot_message_collection.insert_one({ "user_id": user_id,"session_id":[user_id + "_bmoxi_1"]})
            return user_id + "_bmoxi_1"
    except:
        mongodb_chatbot_message_collection.insert_one({ "user_id": user_id,"session_id":[user_id + "_bmoxi_1"]})
        return user_id + "_bmoxi_1"
    

def get_last_session(user_id="user_1"):
    mongodb_chatbot_message_collection = settings.mongodb_db.get_collection(
        settings.MONGODB_DB_USER_SESSIONS_COLLECTION_NAME)
    sessions_cursor = mongodb_chatbot_message_collection.find_one(
        {"user_id": user_id})

    # print(sessions_cursor)
    sessions_list = sessions_cursor['session_id']

    second_last_session_id = None
    if len(sessions_list) >= 2:
        second_last_session_id = sessions_list[-2]
    
    change_use_tool_status(sessions_list[-1])
    return {"last_session_id": sessions_list[-1], "second_last_session_id": second_last_session_id if second_last_session_id else None}

def get_chat_history(session_id="bmoxinew"):
    # Set up MongoDB for storing chat history
    chat_history = MongoDBChatMessageHistory(
        connection_string=settings.MONGODB_CONNECTION_STRING,
        database_name=settings.MONGODB_DB_NAME,  # Specify the database name here
        collection_name=settings.MONGODB_DB_CHAT_COLLECTION_NAME,
        session_id=session_id,
    )

    return chat_history


def get_chat_bot_name(user_id="user_1"):
    # print(settings.MONGODB_CONNECTION_STRING)
    # print(settings.mongodb_chatbot_name_collection)
    result = settings.mongodb_chatbot_name_collection.find_one(
        {"user_id": user_id})

    # print("CHATBOT RESULT", result, type(result))
    if result:
        # print(result)
        return result['chat_bot_name']
    return settings.CHATBOT_NAME

def get_last_conversion(last_session_id, second_last_session_id):

    mongodb_chatbot_message_collection = settings.mongodb_db.get_collection(
        settings.MONGODB_DB_CHAT_COLLECTION_NAME)

    collection_count = mongodb_chatbot_message_collection.count_documents({"SessionId": last_session_id})
    # print("******************************** data********************888")
    # print(collection_count)
    # print(last_session_id)
    # print("*********************************")
    if collection_count <=2:
        sessions_cursor = mongodb_chatbot_message_collection.find({"SessionId": second_last_session_id})  # Sort by timestamp descending and limit to 2 results

        # print(sessions_cursor)
        sessions_list = list(sessions_cursor)
        # print(sessions_list)

        conversation = """"""
        for document in sessions_list:
            # print("MY document")
            # print(document)
            if "History" in document:
                history = json.loads(document['History'])
                # print(history)
                # print(history['type'])
                # print(history['data'])
                # print(history['data']['content'])
                conversation += f"""{history['type']}: {history['data']['content']}\n"""

        return conversation
    else:
        return None
    
def set_chat_bot_name(name, user_id):
    # Insert document into collection
    insert_result = settings.mongodb_chatbot_name_collection.update_one({"user_id": user_id}, { "$set": { "chat_bot_name": name } },  upsert=True)
    # print("done successfully...")
    return name

def save_mood_summary(data,user_id):
     mongodb_chatbot_mood_collection = settings.mongodb_db.get_collection(
        settings.MONGODB_DB_CHAT_BOT_MOOD_COLLECTION_NAME)
     mongodb_chatbot_mood_collection.insert_one(({"user_id": user_id, "mood_summary": data }))
    
def get_mood_data(user_id):
     mongodb_chatbot_mood_collection = settings.mongodb_db.get_collection(settings.MONGODB_DB_CHAT_BOT_MOOD_COLLECTION_NAME)

     data = mongodb_chatbot_mood_collection.find_one({"user_id":user_id})

     if data:
         return data['mood_summary']
     else:
        return ""
     
def use_tools(last_session_id):
    mongodb_chatbot_tools_collection = settings.mongodb_db.get_collection(settings.MONGODB_DB_CHAT_BOT_TOOLS_COLLECTION_NAME)
    data  =  mongodb_chatbot_tools_collection.find_one({"session_id": last_session_id})
    if data and data['set_tools']==True:
        return True
    # print("*********************")
    # print(last_session_id)
    mongodb_chatbot_message_collection = settings.mongodb_db.get_collection(settings.MONGODB_DB_CHAT_COLLECTION_NAME)
    collection_count = mongodb_chatbot_message_collection.count_documents({"SessionId": last_session_id})

    if  collection_count > random.randint(30,50):
        mongodb_chatbot_tools_collection = settings.mongodb_db.get_collection(
        settings.MONGODB_DB_CHAT_BOT_TOOLS_COLLECTION_NAME)
        mongodb_chatbot_tools_collection.update_one({"session_id": last_session_id}, { "$set": { "set_tools": True} },  upsert=True)
        return True
    else:
        return False
    
def change_use_tool_status(last_session_id):
    mongodb_chatbot_tools_collection = settings.mongodb_db.get_collection(settings.MONGODB_DB_CHAT_BOT_TOOLS_COLLECTION_NAME)
    if mongodb_chatbot_tools_collection.count_documents({"session_id": last_session_id})==0:
        mongodb_chatbot_tools_collection.insert_one({"session_id": last_session_id,"set_tools": False} )
    

def isFirstSession(user_id):
    mongodb_chatbot_message_collection = settings.mongodb_db.get_collection(settings.MONGODB_DB_USER_SESSIONS_COLLECTION_NAME)
    
    user_sessions = mongodb_chatbot_message_collection.find_one({"user_id": user_id})
    if user_sessions:
        return  len(user_sessions['session_id'])==1
    else:
        return False