import json
import logging
from base64 import b64decode, b64encode
from subprocess import PIPE, Popen

from rich.logging import RichHandler

import apns
import ids
import imessage

import trio

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

# Set sane log levels
logging.getLogger("urllib3").setLevel(logging.WARNING)
logging.getLogger("py.warnings").setLevel(logging.ERROR)  # Ignore warnings from urllib3
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.INFO)

logging.captureWarnings(True)

process = Popen(["git", "rev-parse", "HEAD"], stdout=PIPE) # type: ignore
(commit_hash, err) = process.communicate()
exit_code = process.wait()
commit_hash = commit_hash.decode().strip()

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

# Re-register if the commit hash has changed
if CONFIG.get("commit_hash") != commit_hash:
    logging.warning("pypush commit is different, forcing re-registration...")
    CONFIG["commit_hash"] = commit_hash
    if "id" in CONFIG:
        del CONFIG["id"]


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

async def main():
    token = CONFIG.get("push", {}).get("token")
    if token is not None:
        token = b64decode(token)
    else:
        token = b""

    push_creds = apns.PushCredentials(
        CONFIG.get("push", {}).get("key", ""), CONFIG.get("push", {}).get("cert", ""), token)

    async with apns.APNSConnection.start(push_creds) as conn:
        await conn.set_state(1)
        await conn.filter(["com.apple.madrid"])

        user = ids.IDSUser(conn)
        user.auth_and_set_encryption_from_config(CONFIG)

        # 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.credentials.token).decode(),
            "key": user.push_connection.credentials.private_key,
            "cert": user.push_connection.credentials.cert,
        }

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

        im = imessage.iMessageUser(conn, user)

        # Send a message to myself
        async with trio.open_nursery() as nursery:
            nursery.start_soon(input_task, im)
            nursery.start_soon(output_task, im)

async def input_task(im: imessage.iMessageUser):
    while True:
        cmd = await trio.to_thread.run_sync(input, "> ", cancellable=True)
        if cmd != "":
            await im.send(imessage.iMessage.create(im, cmd, [im.user.current_handle]))

async def output_task(im: imessage.iMessageUser):
    while True:
        msg = await im.receive()
        print(str(msg))


if __name__ == "__main__":
    trio.run(main)