from copy import deepcopy
from random import choice

import main
from modules import provision
from utils.logging.debug import debug
from utils.logging.log import error


def needToRegister(net):
    # Check if the network does not support authentication
    networkObj = main.network[net]
    if networkObj.auth == "none":
        return False
    # Check if the IRC network definition has registration disabled
    inst = selectInst(net)
    if "register" in inst.keys():
        if inst["register"]:
            return True
        else:
            return False


def needToAuth(net):
    networkObj = main.network[net]
    if networkObj.auth == "none":
        return False
    return True


def selectInst(net):
    if net in main.irc.keys():
        inst = deepcopy(main.irc[net])
        for i in main.irc["_"].keys():
            if i not in inst:
                inst[i] = main.irc["_"][i]
    else:
        inst = deepcopy(main.irc["_"])
    return inst


def substitute(net, num, token=None):
    inst = selectInst(net)
    alias = main.alias[num]
    gotemail = False
    if "emails" in alias:
        # First priority is explicit email lists
        if alias["emails"]:
            email = choice(alias["emails"])
            gotemail = True
    if "domains" in inst:
        if inst["domains"]:
            if not gotemail:
                domain = choice(inst["domains"])
                email = f"{alias['nickname']}@{domain}"
                gotemail = True
    if not gotemail:
        inst["email"] = False
    nickname = alias["nick"]
    # username = nickname + "/" + net
    password = main.network[net].aliases[num]["password"]
    # inst["email"] = inst["email"].replace("{nickname}", nickname)

    name = f"{net}{num}"
    if name in main.IRCPool:
        curnick = main.IRCPool[name].nickname
    else:
        curnick = nickname
    for i in inst.keys():
        if not isinstance(inst[i], str):
            continue
        inst[i] = inst[i].replace("{nickname}", nickname)
        inst[i] = inst[i].replace("{curnick}", curnick)
        inst[i] = inst[i].replace("{password}", password)
        if gotemail:
            inst[i] = inst[i].replace("{email}", email)
        if token:
            inst[i] = inst[i].replace("{token}", token)
    return inst


def registerAccount(net, num):
    debug("Attempting to register: %s - %i" % (net, num))
    sinst = substitute(net, num)
    if not sinst:
        error(f"Register account failed for {net} - {num}")
        return
    if not sinst["email"]:
        error(f"Could not get email for {net} - {num}")
        return
    if not sinst["register"]:
        error("Cannot register for %s: function disabled" % (net))
        return False
    name = net + str(num)
    if not main.IRCPool[name].authenticated:
        main.IRCPool[name].msg(sinst["entity"], sinst["registermsg"])


def confirmAccount(net, num, token):
    sinst = substitute(net, num, token=token)
    name = net + str(num)
    if name in main.IRCPool:
        main.IRCPool[name].msg(sinst["entity"], sinst["confirm"])
    enableAuthentication(net, num)


def confirmRegistration(net, num, negativepass=None):
    obj = main.network[net]
    name = net + str(num)
    if name in main.IRCPool.keys():
        if negativepass is not None:
            main.IRCPool[name].regPing(negativepass=negativepass)
            return
        debug("Relay authenticated: %s - %i" % (net, num))
        main.IRCPool[name].authenticated = True
        main.IRCPool[name].recheckList()
    if obj.relays[num]["registered"]:
        return
    if name in main.IRCPool.keys():
        if main.IRCPool[name]._regAttempt:
            try:
                main.IRCPool[name]._regAttempt.cancel()
            except:  # noqa
                pass
    obj.relays[num]["registered"] = True
    main.saveConf("network")


def attemptManualAuthentication(net, num):
    sinst = substitute(net, num)
    identifymsg = sinst["identifymsg"]
    entity = sinst["entity"]
    name = f"{net}{num}"
    if name not in main.IRCPool:
        return
    main.IRCPool[name].sendmsg(entity, identifymsg, in_query=True)


def enableAuthentication(net, num, jump=True, run_now=False):
    obj = main.network[net]
    nick = main.alias[num]["nick"]
    auth = obj.auth
    name = f"{net}{num}"
    if name not in main.IRCPool:
        return
    # uname = main.alias[num]["nick"] + "/" + net
    password = main.network[net].aliases[num]["password"]
    provision.provisionAuthenticationData(num, nick, net, auth, password)  # Set up for auth
    if jump:
        main.IRCPool[name].msg(main.config["Tweaks"]["ZNC"]["Prefix"] + "status", "Jump")
    if run_now:
        attemptManualAuthentication(net, num)
    if selectInst(net)["check"] is False:
        confirmRegistration(net, num)


def get_unregistered_relays(net=None):
    """
    Get a dict of unregistereed relays, either globally or
    for a network.
    Returns:
    {"net": [["nick1", 1], ["nick2", 2], ...]}
    """
    unreg = {}
    if net:
        nets = [net]
    else:
        nets = main.network.keys()
    for i in nets:
        for num in main.network[i].relays.keys():
            if not main.network[i].relays[num]["registered"]:
                nick = main.alias[num]["nick"]
                if i in unreg:
                    unreg[i].append([nick, num])
                else:
                    unreg[i] = [[nick, num]]
    return unreg


def registerTest(c):
    sinst = substitute(c["net"], c["num"])
    name = c["net"] + str(c["num"])
    net = c["net"]
    num = c["num"]
    if sinst["check"] is False:
        return
    if "msg" in c.keys() and not c["msg"] is None:
        if sinst["negative"]:
            if name in main.IRCPool.keys():
                if main.IRCPool[name]._negativePass is not True:
                    if c["type"] == "query" and c["nick"] == sinst["entity"]:
                        if sinst["checknegativemsg"] in c["msg"]:
                            confirmRegistration(
                                c["net"], c["num"], negativepass=False
                            )  # Not passed negative check, report back
                            return
                        if sinst["checkendnegative"] in c["msg"]:
                            confirmRegistration(
                                c["net"], c["num"], negativepass=True
                            )  # Passed the negative check, report back
                            return
        if sinst["ping"]:
            if sinst["checkmsg2"] in c["msg"] and c["nick"] == sinst["entity"]:
                confirmRegistration(c["net"], c["num"])
                debug(
                    (
                        f"registerTest() {net} - {num} passed ping:checkmsg2 "
                        f"check, {sinst['checkmsg2']} present in message"
                    )
                )
                return
        if sinst["checktype"] == "msg":
            if sinst["checkmsg"] in c["msg"]:
                confirmRegistration(c["net"], c["num"])
                debug(
                    (
                        f"registerTest() {net} - {num} passed checktype:msg:checkmsg check, "
                        f"{sinst['checkmsg']} present in message"
                    )
                )
                return
    elif sinst["checktype"] == "mode":
        if c["type"] == "self":
            if c["mtype"] == "mode":
                if sinst["checkmode"] in c["mode"] and c["status"] is True:
                    confirmRegistration(c["net"], c["num"])
                    debug(
                        (
                            f"registerTest() {net} - {num} passed checktype:mode:checkmost check, "
                            f"{sinst['checkmode']} present in mode"
                        )
                    )
                    return