#!/usr/bin/env rakudo
use v6.d;
use Config::TOML;
use IRC::Client;

my $config = from-toml(
    file => (%*ENV<BOHA_CONFIG_FILE> // $?FILE.IO.sibling('boha.toml').Str)
);

class TrackOps does IRC::Client::Plugin {
    has %!is-op;

    multi method is-op(
        Str() $server, Str() $channel, Str() $nick --> Bool
    ) {
        return %!is-op{$server}{$channel}{$nick}.so;
    }
    multi method is-op(IRC::Client::Message $e --> Bool) {
        fail 'not a channel message' unless $e.?channel;
        return self.is-op($e.server,$e.channel,$e.nick);
    }

    method !set-user-mode(
        Str() $server, Str() $channel, Str() $nick, Bool $mode
    ) {
        %!is-op{$server}{$channel}{$nick} = $mode;
    }

    # response to /NAMES
    method irc-n353(IRC::Client::Message $e) {
        my $server = $e.server;
        my ($my-nick,$equal,$channel,$names) = $e.args();

        for $names.split(/\s+/) -> $name-str {
            my $user = $name-str ~~ / ^ $<sigil> = [ '@' | '+' ]? $<nick> = [ .+ ] $ /;

            self!set-user-mode(
                $server, $channel,
                $user<nick>,
                $user<sigil> eq '@'
            );
        }

        return $.NEXT;
    }

    method irc-mode-channel($e) {
        my ($server, $channel) = $e.server, $e.channel;
        my $new-mode = (
            $e.mode eq '+o' ?? True !!
            $e.mode eq '-o' ?? False !!
            return $.NEXT
        );

        for $e.nicks() -> $nick {
            self!set-user-mode($server,$channel,$nick,$new-mode);
        }

        return $.NEXT;
    }
}

class Boha1 does IRC::Client::Plugin {
    has TrackOps $.ops handles <is-op>;

    # irc-addressed for in-channel messages
    # irc-privmsg-me for direct messages

    method irc-addressed($e) {
        my @words = $e.text.split(/\s+/);

        if @words[0] eq 'op' {
            my $nick = @words[1];
            if self.is-op($e.server,$e.channel,$nick) {
                return "$nick is op";
            }
            else {
                return "$nick is a normal user";
            }
        }
        else {
            return "I don't know understand '$e.text'";
        }
    }
}

my TrackOps $ops .= new;
my Boha1 $boha .= new(:$ops);

.run with IRC::Client.new(
    |($config<server>),
    channels => $config<channels>.map(*.<name>),
    :debug,
    :plugins(
        $ops,
        $boha,
    ),
);