###
# Copyright (c) 2020, mogad0n
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or wthout
# 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.

###

from humanize import ordinal
from supybot import utils, plugins, ircutils, callbacks, world, conf, log
from supybot.commands import *


from num2words import num2words
import dateutil.parser
import json
import requests
import pickle
import sys
import datetime
import time
import pytz

try:
    from supybot.i18n import PluginInternationalization

    _ = PluginInternationalization("DoseLogs")
except ImportError:
    # Placeholder that allows to run the plugin on a bot
    # without the i18n module
    _ = lambda x: x

filename = conf.supybot.directories.data.dirize("DoseLogs.db")


class DoseLogs(callbacks.Plugin):
    """Tools for tracking and controlling substance use"""

    threaded = True

    def __init__(self, irc):
        self.__parent = super(DoseLogs, self)
        self.__parent.__init__(irc)
        self.db = {}
        self._loadDb()
        world.flushers.append(self._flushDb)

    def _loadDb(self):
        """Loads the (flatfile) database mapping nicks to doses."""

        try:
            with open(filename, "rb") as f:
                self.db = pickle.load(f)
        except Exception as e:
            self.log.debug("DoseLogs: Unable to load pickled database: %s", e)

    def _flushDb(self):
        """Flushes the (flatfile) database mapping nicks to doses."""

        try:
            with open(filename, "wb") as f:
                pickle.dump(self.db, f, 2)
        except Exception as e:
            self.log.warning("DoseLogs: Unable to write pickled database: %s", e)

    def die(self):
        self._flushDb()
        world.flushers.remove(self._flushDb)
        self.__parent.die()

    def set(self, irc, msg, args, timezone):
        """<timezone>

        Sets location for your current nick to <timezone>
        for eg. America/Chicago
        """
        nick = msg.nick
        try:
            timezone = pytz.timezone(timezone)
            if nick in self.db:
                self.db[nick]["timezone"] = timezone
            else:
                self.db[nick] = {"timezone": timezone}
            irc.replySuccess()
        except pytz.UnknownTimeZoneError:
            irc.error(_("Unknown timezone"), Raise=True)

    set = wrap(set, ["something"])

    @wrap(
        [getopts({"ago": "something"}), "something", "something", optional("something")]
    )
    def idose(self, irc, msg, args, opts, dose, name, method):
        """[--ago <HHMM>] <amount> <drug> [<method/ROA>]

        Logs a dose for your nick, Ex. @idose --ago 0100 20mg mph oral
        would log that dose as if it was taken an hour ago.
        [--ago] and [ROA] fields are optional
        """
        opts = dict(opts)
        found_method = False
        onset = None
        methods = []
        if method:
            methods = [method.lower()]
            methods = METHODS.get(methods[0], methods)

        drug_and_method = name
        if method:
            if not found_method:
                method = method.title()
            drug_and_method = "%s via %s" % (drug_and_method, method)
        else:
            method = "Undefined"

        nick = msg.nick
        if nick in self.db:
            timezone = self.db[nick].get("timezone", "UTC")
            tz = pytz.timezone(str(timezone))
            time = datetime.datetime.now(tz=tz)
            dose_td = 0
            if "ago" in opts and len(opts["ago"]) == 4:
                ago = opts["ago"]
                dose_td = datetime.timedelta(hours=int(ago[0:2]), minutes=int(ago[2:4]))
                dose_td_s = dose_td.total_seconds()
                time = time - dose_td
            doseLog = {"time": time, "dose": dose, "drug": name, "method": method}
            doses = self.db[nick].get("doses")
            if doses:
                doses.append(doseLog)
            else:
                doses = [doseLog]
            self.db[nick]["doses"] = doses
        else:
            timezone = "UTC"
            tz = pytz.timezone(timezone)
            time = datetime.datetime.now(tz=tz)
            dose_td = 0
            if "ago" in opts and len(opts["ago"]) == 4:
                ago = opts["ago"]
                dose_td = datetime.timedelta(hours=int(ago[0:2]), minutes=int(ago[2:4]))
                dose_td_s = dose_td.total_seconds()
                time = time - dose_td
            doseLog = {"time": time, "dose": dose, "drug": name, "method": method}
            doses = [doseLog]
            self.db[nick] = {"timezone": timezone, "doses": doses}

        if dose_td == 0:
            re = utils.str.format(
                "You dosed %s of %s at %s, %s",
                dose,
                drug_and_method,
                time.strftime("%c"),
                timezone,
            )
            if onset is not None:
                re += utils.str.format(
                    ". You should start feeling effects %s from now", onset
                )
        else:
            re = utils.str.format(
                "You dosed %s of %s at %s, %s ; %T ago",
                dose,
                drug_and_method,
                time.strftime("%c"),
                timezone,
                dose_td.total_seconds(),
            )
            if onset is not None:
                re += utils.str.format(
                    ". You should have/will start feeling effects %s from/after dosing",
                    onset,
                )
        #        re=":-( This is currently not available, sorry. Exception ID T0T4LLYFCK3D."
        irc.reply(re)

    @wrap([optional("positiveInt")])
    def undose(self, irc, msg, args, entry):
        """<n>

        removes your last dose entry, if <n> is provided then
        deletes the nth last dose
        """
        nick = msg.nick
        if nick in self.db:
            nick_dose_log = self.db[nick]["doses"]
            if entry:
                try:
                    del nick_dose_log[-int(entry)]
                    entry = num2words(entry, to="ordinal")
                    irc.replySuccess(
                        f"Deleted the {entry} last dose logged for {nick} "
                    )
                except IndexError:
                    irc.error("The dose entry doesn't exist")
                return
            else:
                del nick_dose_log[-1]
            irc.replySuccess(f"Deleted the last dose logged for {nick} ")
        else:
            irc.error(f"No doses saved for {nick}")

    def doseslogged(self, irc, msg, args):
        """
        This command takes no arguments.

        Retrieves the number of doses logged for a given nick
        """
        nick = msg.nick
        if nick in self.db:
            try:
                nick_dose_log_count = len(self.db[nick]["doses"])
                nick_dose_log_since = self.db[nick]["doses"][0]["time"]
                nick_dose_log_since_string = nick_dose_log_since.strftime("%c")
                irc.reply(
                    f"{nick} has logged {nick_dose_log_count} doses since {nick_dose_log_since_string}"
                )
            except IndexError:
                irc.error("Can't seem to do math, check logs")
        else:
            irc.error(f"No doses saved for {nick}")

    doseslogged = wrap(doseslogged)

    @wrap([optional("positiveInt")])
    def lastdose(self, irc, msg, args, history):
        """<n>

        retrieves your <n>th last logged dose
        """
        nick = msg.nick
        if nick in self.db:
            if history:
                try:
                    lastdose = self.db[nick]["doses"][-int(history)]
                except IndexError:
                    irc.error("You haven't logged that many doses")
                    return
            else:
                lastdose = self.db[nick]["doses"][-1]
            dose = lastdose["dose"]
            drug = lastdose["drug"]
            method = lastdose["method"]
            dose_time = lastdose["time"]
            timezone = self.db[nick]["timezone"]
            tz = pytz.timezone(str(timezone))
            time = datetime.datetime.now(tz=tz)
            since_dose = time - dose_time
            since_dose_seconds = since_dose.total_seconds()
            if history:
                history = num2words(history, to="ordinal")
                re = utils.str.format(
                    "Your %i last dose was %s of %s via %s at %s %s, %T ago",
                    history,
                    dose,
                    drug,
                    method,
                    dose_time.strftime("%c"),
                    timezone,
                    since_dose_seconds,
                )
            else:
                re = utils.str.format(
                    "You last dosed %s of %s via %s at %s %s, %T ago",
                    dose,
                    drug,
                    method,
                    dose_time.strftime("%c"),
                    timezone,
                    since_dose_seconds,
                )
            irc.reply(re)
        else:
            irc.error(f"No doses saved for {nick}")

    @wrap(["positiveInt"])
    def listdose(self, irc, msg, args, history):
        """<n>

        retrieves your <n> last logged doses

        """
        if history > 20:
            irc.error("you can't retrieve more than 20 doses")
            return
        nick = msg.nick
        if nick in self.db:
            try:
                rangecheck = self.db[nick]["doses"][-int(history)]
                irc.reply(f"Your last {history} doses logged are:", private=True)
                for number in range(history, 0, -1):
                    lastdose = self.db[nick]["doses"][-int(number)]
                    dose = lastdose["dose"]
                    drug = lastdose["drug"]
                    method = lastdose["method"]
                    dose_time = lastdose["time"]
                    timezone = self.db[nick]["timezone"]
                    tz = pytz.timezone(str(timezone))
                    time = datetime.datetime.now(tz=tz)
                    since_dose = time - dose_time
                    since_dose_seconds = since_dose.total_seconds()
                    if number == 1:
                        number = "The"
                    else:
                        number = num2words(number, to="ordinal")
                    re = utils.str.format(
                        "::> %i last dose: Amount: %s of \x02%s\x0F via %s | datetime: %s %s | timedelta %T ",
                        number,
                        dose,
                        drug,
                        method,
                        dose_time.strftime("%c"),
                        timezone,
                        since_dose_seconds,
                    )
                    irc.reply(re, private=True)
            except IndexError:
                irc.error("You haven't logged that many doses")
                return
        else:
            irc.error(f"No doses saved for {nick}")

    @wrap(["something"])
    def amountdosed(self, irc, msg, args, drug):
        """<drug>

        shows Aggregate amount in "mg" for <drug> ever logged
        """
        num = 0
        unit = ""
        nick = msg.nick
        if nick in self.db:
            doselogs = self.db[nick]["doses"]
            for doselog in doselogs:
                if doselog["drug"] == drug:
                    for i, c in enumerate(doselog["dose"]):
                        if not c.isdigit():
                            break
                    num += int(doselog["dose"][:i])
                    unit = doselog["dose"][i:].lstrip()
            irc.reply(f"You have dosed a total of {num}{unit} amount of {drug}")
        else:
            irc.error(f"No doses saved for {nick}")


Class = Tripsit


# vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79: