#!/usr/sbin/env python3
# Twisted/Klein imports
from twisted.logger import Logger
from twisted.internet import reactor
from twisted.internet.task import LoopingCall, deferLater
from klein import Klein

# Other library imports
from json import dumps, loads
from json.decoder import JSONDecodeError

# Project imports
from settings import settings
from revolut import Revolut
from agora import Agora
from transactions import Transactions
from irc import bot


def convert(data):
    if isinstance(data, bytes):
        return data.decode("ascii")
    if isinstance(data, dict):
        return dict(map(convert, data.items()))
    if isinstance(data, tuple):
        return map(convert, data)
    return data


class WebApp(object):
    """
    Our Klein webapp.
    """

    app = Klein()

    def __init__(self):
        self.log = Logger("webapp")

    @app.route("/callback", methods=["POST"])
    def callback(self, request):
        content = request.content.read()
        try:
            parsed = loads(content)
        except JSONDecodeError:
            self.log.error("Failed to parse JSON callback: {content}", content=content)
            return dumps(False)
        self.log.info("Callback received: {parsed}", parsed=parsed["data"]["id"])
        self.tx.transaction(parsed)
        return dumps(True)


if __name__ == "__main__":
    # Define IRC and Agora
    irc = bot()
    agora = Agora()

    # Pass IRC to Agora and Agora to IRC
    # This is to prevent recursive dependencies
    agora.set_irc(irc)
    irc.set_agora(agora)

    # Define Revolut
    revolut = Revolut()
    # Pass IRC to Revolut
    revolut.set_irc(irc)

    # Define Transactions
    tx = Transactions()

    # Pass Agora and IRC to Transactions
    tx.set_agora(agora)
    tx.set_irc(irc)

    # Define WebApp
    webapp = WebApp()
    # Handle setting up JWT and request_token from an auth code
    if settings.Revolut.SetupToken == "1":
        deferLater(reactor, 1, revolut.setup_auth)
    else:
        # Schedule refreshing the access token using the refresh token
        deferLater(reactor, 1, revolut.get_new_token, True)
    # Check if the webhook is set up and set up if not
    deferLater(reactor, 4, revolut.setup_webhook)
    # Schedule repeatedly refreshing the access token
    lc = LoopingCall(revolut.get_new_token)
    lc.start(int(settings.Revolut.RefreshSec))

    # Run the WebApp
    webapp.app.run("127.0.0.1", 8080)