import json
import logging
import threading
import time
from base64 import b64decode, b64encode
from getpass import getpass

from rich.logging import RichHandler

import apns
import ids
import imessage

logging.basicConfig(
    level=logging.NOTSET, format="%(message)s", datefmt="[%X]", handlers=[RichHandler()]
)

# Set sane log levels
logging.getLogger("urllib3").setLevel(logging.WARNING)
logging.getLogger("asyncio").setLevel(logging.WARNING)
logging.getLogger("jelly").setLevel(logging.INFO)
logging.getLogger("nac").setLevel(logging.INFO)
logging.getLogger("apns").setLevel(logging.INFO)
logging.getLogger("albert").setLevel(logging.INFO)
logging.getLogger("ids").setLevel(logging.DEBUG)
logging.getLogger("bags").setLevel(logging.INFO)
logging.getLogger("imessage").setLevel(logging.DEBUG)

# Try and load config.json
try:
    with open("config.json", "r") as f:
        CONFIG = json.load(f)
except FileNotFoundError:
    CONFIG = {}

conn = apns.APNSConnection(
    CONFIG.get("push", {}).get("key"), CONFIG.get("push", {}).get("cert")
)


def safe_b64decode(s):
    try:
        return b64decode(s)
    except:
        return None


conn.connect(token=safe_b64decode(CONFIG.get("push", {}).get("token")))
conn.set_state(1)
conn.filter(["com.apple.madrid"])

user = ids.IDSUser(conn)

if CONFIG.get("auth", {}).get("cert") is not None:
    auth_keypair = ids._helpers.KeyPair(CONFIG["auth"]["key"], CONFIG["auth"]["cert"])
    user_id = CONFIG["auth"]["user_id"]
    handles = CONFIG["auth"]["handles"]
    user.restore_authentication(auth_keypair, user_id, handles)
else:
    username = input("Username: ")
    password = getpass("Password: ")

    user.authenticate(username, password)

user.encryption_identity = ids.identity.IDSIdentity(
    encryption_key=CONFIG.get("encryption", {}).get("rsa_key"),
    signing_key=CONFIG.get("encryption", {}).get("ec_key"),
)

if (
    CONFIG.get("id", {}).get("cert") is not None
    and user.encryption_identity is not None
):
    id_keypair = ids._helpers.KeyPair(CONFIG["id"]["key"], CONFIG["id"]["cert"])
    user.restore_identity(id_keypair)
else:
    logging.info("Registering new identity...")
    import emulated.nac

    vd = emulated.nac.generate_validation_data()
    vd = b64encode(vd).decode()

    user.register(vd)

logging.info("Waiting for incoming messages...")

# Write config.json
CONFIG["encryption"] = {
    "rsa_key": user.encryption_identity.encryption_key,
    "ec_key": user.encryption_identity.signing_key,
}
CONFIG["id"] = {
    "key": user._id_keypair.key,
    "cert": user._id_keypair.cert,
}
CONFIG["auth"] = {
    "key": user._auth_keypair.key,
    "cert": user._auth_keypair.cert,
    "user_id": user.user_id,
    "handles": user.handles,
}
CONFIG["push"] = {
    "token": b64encode(user.push_connection.token).decode(),
    "key": user.push_connection.private_key,
    "cert": user.push_connection.cert,
}

with open("config.json", "w") as f:
    json.dump(CONFIG, f, indent=4)

im = imessage.iMessageUser(conn, user)

INPUT_QUEUE = apns.IncomingQueue()

def input_thread():
    from prompt_toolkit import prompt
    while True:

        try:
            msg = prompt('>> ')
        except:
            msg = 'quit'
        INPUT_QUEUE.append(msg)

threading.Thread(target=input_thread, daemon=True).start()

print("Type 'help' for help")  

current_participants = []
while True:
    msg = im.receive()
    if msg is not None:
        print(f'[{msg.sender}] {msg.text}')
    
    if len(INPUT_QUEUE) > 0:
        msg = INPUT_QUEUE.pop()
        if msg == '': continue
        if msg == 'help' or msg == 'h':
            print('help (h): show this message')
            print('quit (q): quit')
            #print('send (s) [recipient] [message]: send a message')
            print('filter (f) [recipient]: set the current chat')
            print('note: recipient must start with tel: or mailto: and include the country code')
            print('\\: escape commands (will be removed from message)')
        elif msg == 'quit' or msg == 'q':
            break
        elif msg.startswith('filter ') or msg.startswith('f '):
            # Set the curernt chat
            msg = msg.split(' ')
            if len(msg) < 2 or msg[1] == '':
                print('filter [recipients]')
            else:
                print(f'Filtering to {msg[1:]}')
                current_participants = msg[1:]
        elif current_participants != []:
            if msg.startswith('\\'):
                msg = msg[1:]
            im.send(imessage.iMessage(
                text=msg,
                participants=current_participants,
                sender=user.handles[0]
            ))
        else:
            print('No chat selected, use help for help')
        
        # elif msg.startswith('send') or msg.startswith('s'):
        #     msg = msg.split(' ')
        #     if len(msg) < 3:
        #         print('send [recipient] [message]')
        #     else:
        #         im.send(imessage.iMessage(
        #             text=' '.join(msg[2:]),
        #             participants=[msg[1], user.handles[0]],
        #             #sender=user.handles[0]
        #         ))