import thread
from helpers import *

friends           = open_json_file("friends", {}) # {Player_UUID:[List_of_friend_uuids]}
friend_join_sound = "random.orb"


def is_friend_of(player, other):
    lst = friends.get(uid(player))
    return lst is not None and uid(other) in lst


@hook.event("player.PlayerJoinEvent", "high") # creates sound and sends a bold message on friend join
def fjm(event): # friend join message
    player    = event.getPlayer()
    player_id = uid(player)

    for onlineplayer in list(server.getOnlinePlayers()):
        if player_id in friends.get(uid(onlineplayer), []):
            msg(onlineplayer, "&a&l%s &ajoined!" % player.getName())
            onlineplayer.playSound(onlineplayer.getLocation(), friend_join_sound, 1, 0)


def save_friends(): # saves to friends file
    save_json_file("friends", friends)


def friendmessage(player, message): # sends a message with a prefix
    msg(player, "&7[&aFriends&7] " + message)


def get_player(name):
    result = server.getOfflinePlayer(name)
    if result is not None and (result.hasPlayedBefore() or result.isOnline()):
        return result
    return None


def ls(sender):
    try:
        sender_friends = friends.get(uid(sender), False)
        if sender_friends:
            friends_string = ""
            for uuid in sender_friends:
                friends_string += (retrieve_player(uuid).getName() + ", ")
            friendmessage(sender, "&aYour friends list: " + friends_string[:len(friends_string)-2])
        else:
            friendmessage(sender, "&cYour friends list is empty")
    except:
        warn("Unable to finish friends' ls process")


def clear(sender):
    sender_id = uid(sender)

    if friends.get(sender_id, False):
        friends.pop(sender_id)
        friendmessage(sender, "&aFriends list cleared")
        save_friends()
    else:
        friendmessage(sender, "&cYour friends list is already empty")


def add(sender, names):
    sender_id     = uid(sender)
    added         = []
    notfound      = []
    friendalready = []
    added_self    = False

    if not sender_id in friends:
        friends[sender_id] = []

    for name in names:
        player = get_player(name)
        if player:
            player_id = uid(player)
            not_yourself = sender != player

            if not player_id in friends[sender_id]:
                if not_yourself:
                    friends[sender_id].append(player_id)
                    added.append(player.getName())
                    if player.isOnline():
                        friendmessage(player.getPlayer(), "&a&o%s &aadded you to their friends list" % stripcolors(sender.getDisplayName()))
                else:
                    added_self = True
            else:
                friendalready.append(player.getName())

        else:
            notfound.append(name)

    save_friends()
    if added:
        friendmessage(sender, "&a&o%s&a added." % ", ".join(added))
    if notfound:
        friendmessage(sender, "&c&o%s&c not found." % ", ".join(notfound))
    if friendalready:
        friendmessage(sender, "&c&o%s&c is/are already your friend." % ", ".join(friendalready))
    if added_self:
        friendmessage(sender, "&cYou can't add yourself to your friends list.")


def rem(sender, names):
    sender_id  = uid(sender)
    removed    = []
    notfound   = []
    notafriend = []

    for name in names:
        player = get_player(name)
        if player:
            player_id = uid(player)
            if player_id in friends.get(sender_id, []):
                friends[sender_id].remove(player_id)
                removed.append(player.getName())
                if player.isOnline():
                    friendmessage(player.getPlayer(), "&c&o%s &cremoved you from their friends list" % stripcolors(sender.getDisplayName()))
            else:
                notafriend.append(player.getName())
        else:
            notfound.append(name)

    if not friends.get(sender_id, False):
        del friends[sender_id]
    save_friends()
    if removed:
        friendmessage(sender, "&a&o%s&a removed." % ", ".join(removed))
    if notfound:
        friendmessage(sender, "&c&o%s&c not found. (must be online)" % ", ".join(notfound))
    if notafriend:
        friendmessage(sender, "&c&o%s&c is/are not in your friends list." % ", ".join(notafriend))


def fhelp(sender):
    friendmessage(sender, "&a&l/friends help")
    msg(sender, "&a1. /friends &oadd <names...>    &6aliases: &o+")
    msg(sender, "&a2. /friends &orem <names...>    &6aliases: &oremove, delete, del, -")
    msg(sender, "&a3. /friends &oclear              &6aliases: &o/")
    msg(sender, "&a4. /friends &olist                 &6aliases: &olst, *")
    msg(sender, "&a5. /friends &ohelp               &6aliases: &o?")


@hook.command("friends")
def on_friend_command(sender, command, label, args):
    try:
        if not is_player(sender):
            friendmessage(sender, "&c&lYou can't have friends!")
            return True

        cmd   = args[0] if args else None
        fargs = args[1:]

        # /friends list
        if cmd in ["list", "lst", "*"]:
            thread.start_new_thread(ls, (sender,))

        # /friends clear
        elif cmd in ["clear", "/"]:
            clear(sender)

        # /friends add <names>
        elif cmd in ["add", "+"]:
            if fargs:
                add(sender, fargs)
            else:
                fhelp(sender)

        # /friends remove <names>
        elif cmd in ["remove", "rem", "delete", "del", "-"]:
            if fargs:
                rem(sender, fargs)
            else:
                fhelp(sender)

        else:
            fhelp(sender)
        return True
    except:
        error(trace())