+# Copyright (C) 2021 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# "lei inspect" general purpose inspector for stuff in SQLite and
+# Xapian. Will eventually be useful with plain public-inboxes,
+# not just lei/store. This is totally half-baked at the moment
+# but useful for testing.
+package PublicInbox::LeiInspect;
+use strict;
+use v5.10.1;
+use PublicInbox::Config;
+
+sub inspect_blob ($$) {
+ my ($lei, $oidhex) = @_;
+ my $ent = {};
+ if (my $lse = $lei->{lse}) {
+ my @docids = $lse ? $lse->over->blob_exists($oidhex) : ();
+ $ent->{'lei/store'} = \@docids if @docids;
+ my $lms = $lse->lms;
+ if (my $loc = $lms ? $lms->locations_for($oidhex) : undef) {
+ $ent->{sync} = $loc;
+ }
+ }
+ $ent;
+}
+
+sub inspect_sync_folder ($$) {
+ my ($lei, $folder) = @_;
+ my $ent = {};
+ my $lse = $lei->{lse} or return $ent;
+ my $lms = $lse->lms or return $ent;
+ my @folders;
+ if ($folder =~ m!\Aimaps?://!i) {
+ require PublicInbox::URIimap;
+ my $uri = PublicInbox::URIimap->new($folder)->canonical;
+ if (defined($uri->uidvalidity)) {
+ $folders[0] = $$uri;
+ } else {
+ my @maybe = $lms->folders($$uri);
+ @folders = grep {
+ my $u = PublicInbox::URIimap->new($_);
+ $uri->uidvalidity($u->uidvalidity);
+ $$uri eq $$u;
+ } @maybe;
+ }
+ } elsif ($folder =~ m!\A(maildir|mh):(.+)!i) {
+ my $type = $1;
+ $folders[0] = "$type:".$lei->abs_path($2);
+ } elsif (-d $folder) {
+ $folders[0] = 'maildir:'.$lei->abs_path($folder);
+ } else {
+ $lei->fail("$folder not understood");
+ }
+ $lei->qerr("# no folders match $folder (non-fatal)") if !@folders;
+ for my $f (@folders) {
+ $ent->{$f} = $lms->location_stats($f); # may be undef
+ }
+ $ent
+}
+
+sub inspect1 ($$$) {
+ my ($lei, $item, $more) = @_;
+ my $ent;
+ if ($item =~ /\Ablob:(.+)/) {
+ $ent = inspect_blob($lei, $1);
+ } elsif ($item =~ m!\Aimaps?://!i ||
+ $item =~ m!\A(?:maildir|mh):!i || -d $item) {
+ $ent = inspect_sync_folder($lei, $item);
+ } else { # TODO: more things
+ return $lei->fail("$item not understood");
+ }
+ $lei->out($lei->{json}->encode($ent));
+ $lei->out(',') if $more;
+ 1;
+}
+
+sub lei_inspect {
+ my ($lei, @argv) = @_;
+ $lei->{1}->autoflush(0);
+ my $multi = scalar(@argv) > 1;
+ $lei->out('[') if $multi;
+ $lei->{json} = ref(PublicInbox::Config::json())->new->utf8->canonical;
+ $lei->{lse} = ($lei->{opt}->{external} // 1) ? do {
+ my $sto = $lei->_lei_store;
+ $sto ? $sto->search : undef;
+ } : undef;
+ if ($lei->{opt}->{pretty} || -t $lei->{1}) {
+ $lei->{json}->pretty(1)->indent(2);
+ }
+ while (defined(my $x = shift @argv)) {
+ inspect1($lei, $x, scalar(@argv)) or return;
+ }
+ $lei->out(']') if $multi;
+}
+
+1;