+# Copyright (C) 2021 all contributors <meta@public-inbox.org>
+# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+
+# WQ worker for dealing with LeiImport IMAP flags on already-imported messages
+# WQ key: {ikw}
+package PublicInbox::LeiImportKw;
+use strict;
+use v5.10.1;
+use parent qw(PublicInbox::IPC);
+
+sub new {
+ my ($cls, $lei) = @_;
+ my $self = bless { -wq_ident => 'lei import_kw worker' }, $cls;
+ my ($op_c, $ops) = $lei->workers_start($self, $self->detect_nproc);
+ $op_c->{ops} = $ops; # for PktOp->event_step
+ $lei->{ikw} = $self;
+}
+
+sub ipc_atfork_child {
+ my ($self) = @_;
+ my $lei = $self->{lei};
+ $lei->_lei_atfork_child;
+ my $net = delete $lei->{net} // die 'BUG: no lei->{net}';
+ $self->{sto} = $lei->{sto} // die 'BUG: no lei->{sto}';
+ $self->{verbose} = $lei->{opt}->{verbose};
+ $self->{lse} = $self->{sto}->search;
+ $self->{over} = $self->{lse}->over;
+ $self->{-lms_ro} = $net->{-lms_ro} || die 'BUG: net->{-lms_ro} FALSE';
+ $self->SUPER::ipc_atfork_child;
+}
+
+sub ck_update_kw { # via wq_io_do
+ my ($self, $url, $uid, $kw) = @_;
+ my $oidbin = $self->{-lms_ro}->imap_oidbin($url, $uid) // return;
+ my @docids = $self->{over}->oidbin_exists($oidbin) or return;
+ $self->{lse}->kw_changed(undef, $kw, \@docids) or return;
+ $self->{verbose} and
+ $self->{lei}->qerr('# '.unpack('H*', $oidbin)." => @$kw\n");
+ $self->{sto}->ipc_do('set_eml_vmd', undef, { kw => $kw }, \@docids);
+}
+
+sub ikw_done_wait {
+ my ($arg, $pid) = @_;
+ my ($self, $lei) = @$arg;
+ my $wait = $lei->{sto}->ipc_do('done');
+ $lei->can('wq_done_wait')->($arg, $pid);
+}
+
+sub _lei_wq_eof { # EOF callback for main lei daemon
+ my ($lei) = @_;
+ my $ikw = delete $lei->{ikw} or return $lei->fail;
+ $ikw->wq_wait_old(\&ikw_done_wait, $lei);
+}
+
+1;