from util import hook
import os
import re
import json
import time
import subprocess

@hook.command(autohelp=False, permissions=["permissions_users"])
def permissions(inp, bot=None, notice=None):
    "permissions [group] -- lists the users and their permission level who have permissions."
    permissions = bot.config.get("permissions", [])
    groups = []
    if inp:
        for k in permissions:
	    if inp == k:
	        groups.append(k)
    else:
	for k in permissions:
	    groups.append(k)
    if not groups:
	notice("%s is not a group with permissions" % inp)
	return None

    for v in groups:
        members = ""
        for value in permissions[v]["users"]:
            members = members + ", " + value
        if members:
            notice("the members in the %s group are.." % v)
            notice(members)
        else:
            notice("there are no members in the %s group" % v)


@hook.command(permissions=["permissions_users"])
def deluser(inp, bot=None, notice=None):
    "deluser [user] [group] -- removes elevated permissions from [user]. " \
    "If [group] is specified, they will only be removed from [group]."
    permissions = bot.config.get("permissions", [])
    inp = inp.split(" ")
    groups = []
    try:
	specgroup = inp[1]
    except IndexError:
	specgroup = None
	for k in permissions:
	    groups.append(k)
    else:
	for k in permissions:
	    if specgroup == k:
		groups.append(k)
    if not groups:
	notice("%s is not a group with permissions" % inp[1])
	return None

    removed = 0
    for v in groups:
	users = permissions[v]["users"]
	for value in users:
	    if inp[0] == value:
		users.remove(inp[0])
		removed = 1
		notice("%s has been removed from the group %s" % (inp[0], v))
		json.dump(bot.config, open('config', 'w'), sort_keys=True, indent=2)
    if specgroup:
	if removed == 0:
	    notice("%s is not in the group %s" % (inp[0], specgroup))
    else:
	if removed == 0:
	    notice("%s is not in any groups" % inp[0])

@hook.command(permissions=["permissions_users"])
def adduser(inp, bot=None, notice=None):
    "adduser [user] [group] -- adds elevated permissions to [user]. " \
    "[group] must be specified."
    permissions = bot.config.get("permissions", [])
    inp = inp.split(" ")
    try:
	user = inp[0]
	targetgroup = inp[1]
    except IndexError:
	notice("the group must be specified")
	return None
    if not re.search('.+!.+@.+', user):
	notice("the user must be in the form of \"nick!user@host\"")
	return None
    try:
        users = permissions[targetgroup]["users"]
    except KeyError:
	notice("no such group as %s" % targetgroup)
	return None
    if user in users:
	notice("%s is already in %s" % (user, targetgroup))
	return None

    users.append(user)
    notice("%s has been added to the group %s" % (user, targetgroup))
    users.sort()
    json.dump(bot.config, open('config', 'w'), sort_keys=True, indent=2)


@hook.command("quit", autohelp=False, permissions=["botcontrol"])
@hook.command(autohelp=False, permissions=["botcontrol"])
def stop(inp, nick=None, conn=None):
    "stop [reason] -- Kills the bot with [reason] as its quit message."
    if inp:
        conn.cmd("QUIT", ["Killed by %s (%s)" % (nick, inp)])
    else:
        conn.cmd("QUIT", ["Killed by %s." % nick])
    time.sleep(5)
    os.execl("./cloudbot", "cloudbot", "stop")


@hook.command(autohelp=False, permissions=["botcontrol"])
def restart(inp, nick=None, conn=None):
    "restart [reason] -- Restarts the bot with [reason] as its quit message."
    if inp:
        conn.cmd("QUIT", ["Restarted by %s (%s)" % (nick, inp)])
    else:
        conn.cmd("QUIT", ["Restarted by %s." % nick])
    time.sleep(5)
    os.execl("./cloudbot", "cloudbot", "restart")


@hook.command(autohelp=False, permissions=["botcontrol"])
def clearlogs(inp, input=None):
    "clearlogs -- Clears the bots log(s)."
    subprocess.call(["./cloudbot", "clear"])


@hook.command(permissions=["botcontrol"])
def join(inp, conn=None, notice=None):
    "join <channel> -- Joins <channel>."
    notice("Attempting to join %s..." % inp)
    conn.join(inp)


@hook.command(autohelp=False, permissions=["botcontrol"])
def part(inp, conn=None, chan=None, notice=None):
    "part <channel> -- Leaves <channel>." \
    "If [channel] is blank the bot will leave the " \
    "channel the command was used in."
    if inp:
        target = inp
    else:
        target = chan
    notice("Attempting to leave %s..." % target)
    conn.part(target)


@hook.command(autohelp=False, permissions=["botcontrol"])
def cycle(inp, conn=None, chan=None, notice=None):
    "cycle <channel> -- Cycles <channel>." \
    "If [channel] is blank the bot will cycle the " \
    "channel the command was used in."
    if inp:
        target = inp
    else:
        target = chan
    notice("Attempting to cycle %s..." % target)
    conn.part(target)
    conn.join(target)


@hook.command(permissions=["botcontrol"])
def nick(inp, input=None, notice=None, conn=None):
    "nick <nick> -- Changes the bots nickname to <nick>."
    if not re.match("^[A-Za-z0-9_|.-\]\[]*$", inp.lower()):
        notice("Invalid username!")
        return
    notice("Attempting to change nick to \"%s\"..." % inp)
    conn.set_nick(inp)


@hook.command(permissions=["botcontrol"])
def raw(inp, conn=None, notice=None):
    "raw <command> -- Sends a RAW IRC command."
    notice("Raw command sent.")
    conn.send(inp)


@hook.command(permissions=["botcontrol"])
def say(inp, conn=None, chan=None, notice=None):
    "say [channel] <message> -- Makes the bot say <message> in [channel]. " \
    "If [channel] is blank the bot will say the <message> in the channel " \
    "the command was used in."
    inp = inp.split(" ")
    if inp[0][0] == "#":
        message = ""
        for x in inp[1:]:
            message = message + x + " "
        message = message[:-1]
        out = "PRIVMSG %s :%s" % (inp[0], message)
    else:
        message = ""
        for x in inp[0:]:
            message = message + x + " "
        message = message[:-1]
        out = "PRIVMSG %s :%s" % (chan, message)
    conn.send(out)


@hook.command("act", permissions=["botcontrol"])
@hook.command(permissions=["botcontrol"])
def me(inp, conn=None, chan=None, notice=None):
    "me [channel] <action> -- Makes the bot act out <action> in [channel]. " \
    "If [channel] is blank the bot will act the <action> in the channel the " \
    "command was used in."
    inp = inp.split(" ")
    if inp[0][0] == "#":
        message = ""
        for x in inp[1:]:
            message = message + x + " "
        message = message[:-1]
        out = "PRIVMSG %s :\x01ACTION %s\x01" % (inp[0], message)
    else:
        message = ""
        for x in inp[0:]:
            message = message + x + " "
        message = message[:-1]
        out = "PRIVMSG %s :\x01ACTION %s\x01" % (chan, message)
    conn.send(out)