###
# Copyright (c) 2017, Ken Spencer
# Copyright (c) 2020, oddluck <oddluck@riseup.net>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions, and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright notice,
#     this list of conditions, and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the author of this software nor the name of
#     contributors to this software may be used to endorse or promote products
#     derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###

import supybot.log as log
import supybot.ircmsgs as ircmsgs
import supybot.utils as utils
from supybot.commands import *
import supybot.plugins as plugins
import supybot.ircutils as ircutils
import supybot.callbacks as callbacks
from supybot.i18n import PluginInternationalization, internationalizeDocstring


_ = PluginInternationalization("UndernetX")


@internationalizeDocstring
class UndernetX(callbacks.Plugin):
    """Logins to Undernet's X Service"""

    threaded = True

    def __init__(self, irc):
        global instance
        instance = self
        self.__parent = super(UndernetX, self)
        callbacks.Plugin.__init__(self, irc)
        instance.irc = irc
        self.reset()

    def _login(self, irc):
        self.reset()
        username = self.registryValue("auth.username")
        password = self.registryValue("auth.password")
        xserv = self.registryValue("auth.xservice")
        irc.sendMsg(ircmsgs.privmsg(xserv, "login {} {}".format(username, password)))

    def doNotice(self, irc, msg):
        if irc.state.supported.get("NETWORK", "") == "UnderNet":
            if "X!cservice@undernet.org" in msg.prefix:
                if "AUTHENTICATION SUCCESSFUL as" in msg.args[1]:
                    log.info("Successfully authed to X.")
                    modex = self.registryValue("modeXonID")
                    if modex:
                        log.info("Setting +x")
                        irc.sendMsg(ircmsgs.IrcMsg("MODE {} +x".format(irc.nick)))
                    self.identified = True
                    waitingJoins = self.waitingJoins.pop(irc.network, None)
                    if waitingJoins:
                        for m in waitingJoins:
                            irc.sendMsg(m)
                else:
                    log.info("Received a NOTICE from X. msg: {}".format(msg.args[1]))
                    return
            else:
                if "AUTHENTICATION SUCCESSFUL as" in msg.args[1]:
                    log.warning("Someone is impersonating X!")
        else:
            log.debug("Notice isn't from UnderNet.. Ignoring")

    def reset(self):
        self.identified = False
        self.waitingJoins = {}

    def outFilter(self, irc, msg):
        if irc.state.supported.get("NETWORK", "") == "UnderNet":
            if msg.command == "JOIN":
                if not self.identified:
                    if self.registryValue("auth.noJoinsUntilAuthed"):
                        self.log.info(
                            "Holding JOIN to %s @ %s until identified.",
                            msg.channel,
                            irc.network,
                        )
                        self.waitingJoins.setdefault(irc.network, [])
                        self.waitingJoins[irc.network].append(msg)
                        return None
        return msg

    def do376(self, irc, msg):
        """Watch for the MOTD and login if we can"""
        if irc.state.supported.get("NETWORK", "") == "UnderNet":
            if self.registryValue("auth.username") and self.registryValue(
                "auth.password"
            ):
                log.info("Attempting login to XService")
            else:
                log.warning("username and password not set, this plugin will not work")
                return
            self._login(irc)

    do422 = do377 = do376

    # Similar to Services->Identify
    def login(self, irc, msg, args):
        """takes no arguments
        Logins to Undernet's X Service"""
        if irc.state.supported.get("NETWORK", "") == "UnderNet":
            if self.registryValue("auth.username") and self.registryValue(
                "auth.password"
            ):
                log.info("Attempting login to XService")
            else:
                log.warning("username and password not set, this plugin will not work")
                return
            self._login(irc)
        else:
            log.error("We're not on UnderNet, we can't use this.")
            irc.error("We're not on UnderNet, this is useless.")

    login = wrap(login, ["admin"])


Class = UndernetX

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