Improve factshow/factfind behavior

factshow's and factfind's channel argument is now optional.

The commands will now automatically determine the channel a factoid lives in
if it is the only factoid of that name.

If there are multiple factoids existing in different channels then the commands
will display a disambiguation message and require an explicit channel argument
to choose a specific channel's factoid.

PBot/FactoidCommands.pm

@@ -560,16 +560,45 @@ sub factshow {
 
   my ($chan, $trig) = split / /, $arguments;
 
-  if(not defined $chan or not defined $trig) {
-    return "Usage: factshow <channel> <trigger>";
+  if(not defined $chan and not defined $trig) {
+    return "Usage: factshow [channel] <trigger>";
   }
 
-  my ($channel, $trigger) = $self->{pbot}->{factoids}->find_factoid($chan, $trig, undef, 1, 1);
+  my $needs_disambig;
 
-  if(not defined $trigger) {
+  if (not defined $trig) {
+    $trig = $chan;
+    $chan = '.*';
+    $needs_disambig = 1;
+  }
+
+  $chan = '.*' if $chan eq 'global';
+
+  $chan = lc $chan;
+
+  my @factoids = $self->{pbot}->{factoids}->find_factoid($chan, $trig);
+
+  if(not @factoids) {
     return "$trig not found in channel $chan";
   }
 
+  my ($channel, $trigger);
+
+  if (@factoids > 1) {
+    if ($needs_disambig or not grep { $_->[0] eq $chan } @factoids) {
+      return "$trig found in multiple channels: " . (join ', ', sort map { $_->[0] eq '.*' ? 'global' : $_->[0] } @factoids) . "; use `factshow <channel> $trig` to disambiguate.";
+    } else {
+      foreach my $factoid (@factoids) {
+        if ($factoid->[0] eq $chan) {
+          ($channel, $trigger) = ($factoid->[0], $factoid->[1]);
+          last;
+        }
+      }
+    }
+  } else {
+    ($channel, $trigger) = ($factoids[0]->[0], $factoids[0]->[1]);
+  }
+
   my $result = "$trigger: " . $factoids->{$channel}->{$trigger}->{action};
 
   if($factoids->{$channel}->{$trigger}->{type} eq 'module') {
@@ -586,16 +615,45 @@ sub factinfo {
 
   my ($chan, $trig) = split / /, $arguments;
 
-  if(not defined $chan or not defined $trig) {
-    return "Usage: factinfo <channel> <trigger>";
+  if(not defined $chan and not defined $trig) {
+    return "Usage: factinfo [channel] <trigger>";
   }
 
-  my ($channel, $trigger) = $self->{pbot}->{factoids}->find_factoid($chan, $trig, undef, 1, 1);
+  my $needs_disambig;
 
-  if(not defined $trigger) {
+  if (not defined $trig) {
+    $trig = $chan;
+    $chan = '.*';
+    $needs_disambig = 1;
+  }
+
+  $chan = '.*' if $chan eq 'global';
+
+  $chan = lc $chan;
+
+  my @factoids = $self->{pbot}->{factoids}->find_factoid($chan, $trig);
+
+  if(not @factoids) {
     return "$trig not found in channel $chan";
   }
 
+  my ($channel, $trigger);
+
+  if (@factoids > 1) {
+    if ($needs_disambig or not grep { $_->[0] eq $chan } @factoids) {
+      return "$trig found in multiple channels: " . (join ', ', sort map { $_->[0] eq '.*' ? 'global' : $_->[0] } @factoids) . "; use `factinfo <channel> $trig` to disambiguate.";
+    } else {
+      foreach my $factoid (@factoids) {
+        if ($factoid->[0] eq $chan) {
+          ($channel, $trigger) = ($factoid->[0], $factoid->[1]);
+          last;
+        }
+      }
+    }
+  } else {
+    ($channel, $trigger) = ($factoids[0]->[0], $factoids[0]->[1]);
+  }
+
   my $created_ago = ago(gettimeofday - $factoids->{$channel}->{$trigger}->{created_on});
   my $ref_ago = ago(gettimeofday - $factoids->{$channel}->{$trigger}->{last_referenced_on}) if defined $factoids->{$channel}->{$trigger}->{last_referenced_on};
 

PBot/FactoidModuleLauncher.pm

@@ -44,13 +44,16 @@ sub execute_module {
 
   $arguments = "" if not defined $arguments;
 
-  my ($channel, $trigger) = $self->{pbot}->{factoids}->find_factoid($from, $keyword);
+  my @factoids = $self->{pbot}->{factoids}->find_factoid($from, $keyword);
 
-  if(not defined $trigger) {
+
+  if(not @factoids) {
     $self->{pbot}->{interpreter}->handle_result($from, $nick, $user, $host, $command, "$keyword $arguments", "/msg $nick Failed to find module for '$keyword' in channel $from\n", 1, 0);
     return;
   }
 
+  my ($channel, $trigger) = ($factoids[0]->[0], $factoids[0]->[1]);
+
   my $module = $self->{pbot}->{factoids}->{factoids}->hash->{$channel}->{$trigger}->{action};
   my $module_dir = $self->{pbot}->{registry}->get_value('general', 'module_dir');
 

PBot/Factoids.pm

@@ -252,6 +252,7 @@ sub find_factoid {
   $self->{pbot}->{logger}->log("string: $string\n") if $debug;
 
   my @result = eval {
+    my @results;
     for (my $depth = 0; $depth < 5; $depth++) {
       if ($self->{pbot}->{commands}->exists($keyword)) {
         return undef;
@@ -282,7 +283,11 @@ sub find_factoid {
               goto NEXT_DEPTH;
             }
 
-            return ($channel, $trigger);
+            if ($exact_channel) {
+              return ($channel, $trigger);
+            } else {
+              push @results, [$channel, $trigger];
+            }
           }
         }
       }
@@ -296,7 +301,7 @@ sub find_factoid {
 
           foreach my $trigger (sort keys %{ $self->{factoids}->hash->{$channel} }) {
             if($self->{factoids}->hash->{$channel}->{$trigger}->{type} eq 'regex') {
-              $self->{pbot}->{logger}->log("checking regex $string =~ m/$trigger/i\n") if $debug;
+              $self->{pbot}->{logger}->log("checking regex $string =~ m/$trigger/i\n") if $debug >= 2;
               if($string =~ m/$trigger/i) {
                 $self->{pbot}->{logger}->log("return regex $channel: $trigger\n") if $debug;
 
@@ -307,7 +312,11 @@ sub find_factoid {
                   goto NEXT_DEPTH;
                 }
 
-                return ($channel, $trigger);
+                if ($exact_channel) {
+                  return ($channel, $trigger);
+                } else {
+                  push @results, [$channel, $trigger];
+                }
               }
             }
           }
@@ -318,8 +327,14 @@ sub find_factoid {
       last if not $find_alias;
     }
 
-    $self->{pbot}->{logger}->log("find_factoid: no match\n") if $debug;
-    return undef;
+    if ($debug) {
+      if (not @results) {
+        $self->{pbot}->{logger}->log("find_factoid: no match\n");
+      } else {
+        $self->{pbot}->{logger}->log("find_factoid: got results: " . (join ', ', map { "$_->[0] -> $_->[1]" } @results) . "\n");
+      }
+    }
+    return @results;
   };
 
   if($@) {
@@ -336,9 +351,11 @@ sub expand_factoid_vars {
   while ($action =~ /(?<!\\)\$([a-zA-Z0-9_\-]+)/g) {
     my $v = $1;
     next if $v =~ m/^(nick|channel|randomnick)$/; # don't override special variables
-    my ($var_chan, $var) = $self->find_factoid($from, $v, undef, 0, 1);
+    my @factoids = $self->find_factoid($from, $v, undef, 0, 1);
+    next if not @factoids;
+    my ($var_chan, $var) = ($factoids[0]->[0], $factoids[0]->[1]);
 
-    if(defined $var && $self->{factoids}->hash->{$var_chan}->{$var}->{type} eq 'text') {
+    if(@factoids && $self->{factoids}->hash->{$var_chan}->{$var}->{type} eq 'text') {
       my $change = $self->{factoids}->hash->{$var_chan}->{$var}->{action};
       my @list = split(/\s|(".*?")/, $change);
       my @mylist;