From 03929dac2a29664878d2c971648a4fe1fb698462 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 15 Apr 2024 22:19:02 +0200
Subject: Adding upstream version 20231031.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 scripts/eliza.pl | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 scripts/eliza.pl

(limited to 'scripts/eliza.pl')

diff --git a/scripts/eliza.pl b/scripts/eliza.pl
new file mode 100644
index 0000000..b8d5674
--- /dev/null
+++ b/scripts/eliza.pl
@@ -0,0 +1,107 @@
+# Answers to /msg's using Chatbot::Eliza when you're away.
+
+# Put definition files to ~/.irssi/eliza/*.txt
+# Uses the default definitions if there aren't any definition files.
+# http://misterhouse.net:81/mh/data/eliza/
+
+use strict;
+use 5.6.0;
+use Irssi;
+use Chatbot::Eliza;
+
+use vars qw($VERSION %IRSSI $eliza_dir @cmd_queue
+  $min_reply_time $max_reply_time
+  %conversations $conversation_expire);
+
+$VERSION = '1.0';
+%IRSSI = (
+    authors     => 'Johan "Ion" Kiviniemi',
+    contact     => 'ion at hassers.org',
+    name        => 'Eliza',
+    description => 'Answers to /msg\'s using Chatbot::Eliza when you\'re away.',
+    license     => 'Public Domain',
+    url         => 'http://ion.amigafin.org/scripts/',
+    changed     => 'Thu Mar 14 05:29 EET 2002',
+);
+
+$eliza_dir = Irssi::get_irssi_dir . "/eliza";
+undef $eliza_dir unless -d $eliza_dir;
+
+$min_reply_time      = 5;      # seconds
+$max_reply_time      = 15;     # seconds as well
+$conversation_expire = 600;    # seconds again
+
+Irssi::timeout_add(
+    1000 * $conversation_expire, sub {
+        foreach (keys %conversations) {
+            if ($conversations{$_}{lastmsg} < time - $conversation_expire) {
+                # The Chatbot::Eliza object will be destroyed automagically.
+                delete $conversations{$_};
+            }
+        }
+    },
+    undef
+);
+
+sub new_eliza {
+    my ($name, $eliza_o, @files) = shift;
+    if ($eliza_dir) { @files = <$eliza_dir/*.txt> }
+    if (@files) {
+        $eliza_o = Chatbot::Eliza->new(scriptfile => $files[ rand @files ])
+          || return;
+    } else {
+        $eliza_o = Chatbot::Eliza->new() || return;
+    }
+    $eliza_o->name($name);
+    return $eliza_o;
+}
+
+Irssi::signal_add(
+    'message private' => sub {
+        # Someone just msg'ed me.
+        my ($server, $message, $nick, $address) = @_;
+        return if $nick eq $server->{nick};
+
+        # Ignore it if I'm not away.
+        return unless $server->{usermode_away};
+
+        if (not $conversations{$address}
+            and $conversations{$address}{lastmsg} < time - $conversation_expire)
+        {
+            # A new conversation.
+            $conversations{$address} = { lastmsg => time };
+            unless ($conversations{$address}{eliza} =
+                new_eliza($server->{nick}))
+            {
+                Irssi::print("Chatbot::Eliza->new() failed!",
+                    MSGLEVEL_CLIENTERROR);
+                delete $conversations{$address};
+                return;
+            }
+        } else {
+            # Continuing an old conversation.
+            $conversations{$address}{lastmsg} = time;
+        }
+        push_queue($server, "msg $nick "
+            . $conversations{$address}{eliza}->transform($message));
+    }
+);
+
+sub push_queue {
+    my ($server, $command) = @_;
+    return if @cmd_queue > 3;
+    my $reply_time =
+      int(time + $min_reply_time + rand($max_reply_time - $min_reply_time));
+    push @cmd_queue, [ $reply_time, $server, $command ];
+    @cmd_queue = sort { $a->[0] <=> $b->[0] } @cmd_queue;
+}
+
+Irssi::timeout_add(
+    1000, sub {
+        while (@cmd_queue and $cmd_queue[0][0] <= time) {
+            my $cmd = shift @cmd_queue;
+            $cmd->[1]->command($cmd->[2]);
+        }
+    },
+    undef
+);
-- 
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