# Copyright (C) 2021 all contributors
# License: AGPL-3.0+
# front-end for the "lei import" sub-command
package PublicInbox::LeiImport;
use strict;
use v5.10.1;
use parent qw(PublicInbox::IPC PublicInbox::LeiInput);
# /^input_/ subs are used by (or override) PublicInbox::LeiInput superclass
sub input_eml_cb { # used by PublicInbox::LeiInput::input_fh
my ($self, $eml, $vmd) = @_;
my $xoids = $self->{lei}->{ale}->xoids_for($eml);
$self->{lei}->{sto}->ipc_do('set_eml', $eml, $vmd, $xoids);
}
sub input_mbox_cb { # MboxReader callback
my ($eml, $self) = @_;
my $vmd;
if ($self->{-import_kw}) {
my $kw = PublicInbox::MboxReader::mbox_keywords($eml);
$vmd = { kw => $kw } if scalar(@$kw);
}
input_eml_cb($self, $eml, $vmd);
}
sub input_maildir_cb { # maildir_each_eml cb
my ($f, $kw, $eml, $self) = @_;
input_eml_cb($self, $eml, $self->{-import_kw} ? { kw => $kw } : undef);
}
sub input_net_cb { # imap_each, nntp_each cb
my ($url, $uid, $kw, $eml, $self) = @_;
input_eml_cb($self, $eml, $self->{-import_kw} ? { kw => $kw } : undef);
}
sub import_done { # EOF callback for main daemon
my ($lei) = @_;
my $imp = delete $lei->{imp} // return $lei->fail('BUG: {imp} gone');
$imp->wq_wait_old($lei->can('wq_done_wait'), $lei, 'non-fatal');
}
sub net_merge_complete { # callback used by LeiAuth
my ($self) = @_;
$self->wq_io_do('process_inputs');
$self->wq_close(1);
}
sub lei_import { # the main "lei import" method
my ($lei, @inputs) = @_;
my $sto = $lei->_lei_store(1);
$sto->write_prepare($lei);
my $self = bless {}, __PACKAGE__;
$self->{-import_kw} = $lei->{opt}->{kw} // 1;
$self->prepare_inputs($lei, \@inputs) or return;
$lei->ale; # initialize for workers to read
my $j = $lei->{opt}->{jobs} // scalar(@{$self->{inputs}}) || 1;
if (my $net = $lei->{net}) {
# $j = $net->net_concurrency($j); TODO
if ($lei->{opt}->{incremental} // 1) {
$net->{incremental} = 1;
$net->{itrk_fn} = $lei->store_path .
'/net_last.sqlite3';
}
} else {
my $nproc = $self->detect_nproc;
$j = $nproc if $j > $nproc;
}
my $ops = { '' => [ \&import_done, $lei ] };
$lei->{auth}->op_merge($ops, $self) if $lei->{auth};
$self->{-wq_nr_workers} = $j // 1; # locked
(my $op_c, $ops) = $lei->workers_start($self, 'lei_import', $j, $ops);
$lei->{imp} = $self;
net_merge_complete($self) unless $lei->{auth};
$op_c->op_wait_event($ops);
}
no warnings 'once';
*ipc_atfork_child = \&PublicInbox::LeiInput::input_only_atfork_child;
# the following works even when LeiAuth is lazy-loaded
*net_merge_all = \&PublicInbox::LeiAuth::net_merge_all;
1;