messenger_bot.py

#!/usr/bin/env python3

import markovify
import argparse
import json

def parse_arguments():
    parser = argparse.ArgumentParser()
    parser.add_argument("data_dir", help="The path to the directory containing your messages, extracted with fbchat-archive-parser, in json format")
    args = parser.parse_args()
    return args.data_dir

def get_all_messages_from_participant(convo):
    participant = convo['participants'][0]
    buff_convo = convo["messages"]
    corpus = ""
    for elem in buff_convo:
        if elem['sender'] == participant:
            corpus = corpus + elem['message'] + "\n"
    return corpus

def main():
    data_dir = parse_arguments()
    f = open(data_dir + "/manifest.txt", "r")
    f.readline()
    f.readline()
    for line in f:
        print (line, end='')
    f.close()
    convo_number = input("Please enter the number of the convo you want to analyse : ")
    f = open(data_dir + "thread_{}.json".format(convo_number), "r")
    convo = json.load(f)
    f.close()
    corpus = get_all_messages_from_participant(convo)
    model = markovify.NewlineText(corpus)
    print(chr(27) + "[2J")
    while True:
        print (model.make_sentence(), end='')
        input("")
if __name__ == "__main__":
    main()

To generate the files needed for this to work, you need to download the archive facebook provides with all your contents.

Then you need to install a package that parses those files :

pip install fbchat-archive-parser

And then launch the extraction (I recommend using --resolve, which requires your facebook crendentials, to resolve facebook ids to logins)

fbcap /path/to/messages.htm -f json -d . --resolve

Then launch this script :

python3 messenger_bot.py /path/to/fbchat_dump_XXXXXXX