[working/Evergreen.git] / Open-ILS / src / perlmods / lib / OpenILS / Application / Storage / Publisher / action.pm

package OpenILS::Application::Storage::Publisher::action;
use parent qw/OpenILS::Application::Storage::Publisher/;
use strict;
use warnings;
use OpenSRF::Utils::Logger qw/:level :logger/;
use OpenSRF::Utils qw/:datetime/;
use OpenSRF::Utils::JSON;
use OpenSRF::AppSession;
use OpenSRF::EX qw/:try/;
use OpenILS::Utils::Fieldmapper;
use OpenILS::Utils::PermitHold;
use DateTime;
use DateTime::Format::ISO8601;
use OpenILS::Utils::Penalty;
use POSIX qw(ceil);
use OpenILS::Application::Circ::CircCommon;
use OpenILS::Application::AppUtils;
my $U = "OpenILS::Application::AppUtils";

# Used in build_hold_sort_clause().  See the hash %order_by_sprintf_args in
# that sub to confirm what gets used to replace the formatters, and see
# nearest_hold() for the main body of the SQL query that these go into.
my %HOLD_SORT_ORDER_BY = (
    pprox => 'p.prox',
    hprox => 'actor.org_unit_proximity(%d, h.pickup_lib)',  # $cp->call_number->owning_lib
    aprox => 'COALESCE(hm.proximity, p.prox)',
    approx => 'action.hold_copy_calculated_proximity(h.id, %d, %d)', # $cp,$here
    priority => 'pgt.hold_priority',
    cut => 'CASE WHEN h.cut_in_line IS TRUE THEN 0 ELSE 1 END',
    depth => 'h.selection_depth',
    rtime => 'h.request_time',
    htime => q!
        CASE WHEN
            last_event_on_copy.place <> %d AND
            copy_has_not_been_home.result
        THEN actor.org_unit_proximity(%d, h.pickup_lib)
        ELSE 999
        END
    !,  # $cp->call_number->owning_lib x 2
    shtime => q!
        CASE WHEN
            last_event_on_copy.place <> %d AND
            copy_has_not_been_home_even_to_idle.result
        THEN actor.org_unit_proximity(%d, h.pickup_lib)
        ELSE 999
        END
    !,  # $cp->call_number->owning_lib x 2
);


sub isTrue {
    my $v = shift || '0';
    return 1 if ($v == 1);
    return 1 if ($v =~ /^t/io);
    return 1 if ($v =~ /^y/io);
    return 0;
}

sub ou_ancestor_setting_value_or_cache {
    # cache should be specific to setting
    my ($actor, $org_id, $setting, $cache) = @_;

    if (not exists $cache->{$org_id}) {
        my $r = $actor->request(
            'open-ils.actor.ou_setting.ancestor_default', $org_id, $setting
        )->gather(1);

        if ($r) {
            $cache->{$org_id} = $r->{value};
        } else {
            $cache->{$org_id} = undef;
        }
    }
    return $cache->{$org_id};
}

my $parser = DateTime::Format::ISO8601->new;
my $log = 'OpenSRF::Utils::Logger';

sub open_noncat_circs {
    my $self = shift;
    my $client = shift;
    my $user = shift;

    my $a = action::non_cataloged_circulation->table;
    my $c = config::non_cataloged_type->table;

    my $sql = <<"    SQL";
        SELECT  a.id
          FROM  $a a
            JOIN $c c ON (a.item_type = c.id)
          WHERE a.circ_time + c.circ_duration > current_timestamp
            AND a.patron = ?
    SQL

    return action::non_cataloged_circulation->db_Main->selectcol_arrayref($sql, {}, $user);
}
__PACKAGE__->register_method(
    api_name  => 'open-ils.storage.action.open_non_cataloged_circulation.user',
    method    => 'open_noncat_circs',
    api_level => 1,
    argc      => 1,
);


sub ou_hold_requests {
    my $self = shift;
    my $client = shift;
    my $ou = shift;

    my $h_table = action::hold_request->table;
    my $c_table = asset::copy->table;
    my $o_table = actor::org_unit->table;

    my $SQL = <<"    SQL";
        SELECT  h.id
          FROM  $h_table h
            JOIN $c_table cp ON (cp.id = h.current_copy)
            JOIN $o_table ou ON (ou.id = cp.circ_lib)
          WHERE ou.id = ?
            AND h.capture_time IS NULL
            AND h.cancel_time IS NULL
            AND (h.expire_time IS NULL OR h.expire_time > NOW())
          ORDER BY h.request_time
    SQL

    my $sth = action::hold_request->db_Main->prepare_cached($SQL);
    $sth->execute($ou);

    $client->respond($_) for (
        map {
            $self
                ->method_lookup('open-ils.storage.direct.action.hold_request.retrieve')
                ->run($_)
        } map {
            $_->[0]
        } @{ $sth->fetchall_arrayref }
    );
    return undef;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.targeted_hold_request.org_unit',
    api_level       => 1,
    argc        => 1,
    stream      => 1,
    method          => 'ou_hold_requests',
);


sub overdue_circs {
    my $upper_interval = shift || '1 millennium';
    my $idlist = shift;

    my $c_t = action::circulation->table;

    my $sql = <<"    SQL";
        SELECT  *
          FROM  $c_t
          WHERE stop_fines IS NULL
            AND due_date < ( CURRENT_TIMESTAMP - grace_period )
            AND fine_interval < ?::INTERVAL
    SQL

    my $sth = action::circulation->db_Main->prepare_cached($sql);
    $sth->execute($upper_interval);

    my @circs = map { $idlist ? $_->{id} : action::circulation->construct($_) } $sth->fetchall_hash;

    $c_t = booking::reservation->table;
    $sql = <<"    SQL";
        SELECT  *
          FROM  $c_t
          WHERE return_time IS NULL
            AND end_time < ( CURRENT_TIMESTAMP )
            AND fine_interval IS NOT NULL
            AND cancel_time IS NULL
    SQL

    $sth = action::circulation->db_Main->prepare_cached($sql);
    $sth->execute();

    push @circs, map { $idlist ? $_->{id} : booking::reservation->construct($_) } $sth->fetchall_hash;

    return @circs;
}

sub complete_reshelving {
    my $self = shift;
    my $client = shift;
    my $window = shift;

    local $OpenILS::Application::Storage::WRITE = 1;

    throw OpenSRF::EX::InvalidArg ("I need an interval of more than 0 seconds!")
        unless (interval_to_seconds( $window ));

    my $cp = asset::copy->table;

    my $sql = <<"    SQL";
        UPDATE  $cp
          SET   status = 0
          WHERE id IN (
            SELECT cp.id 
            FROM  $cp cp
            WHERE cp.status = 7
                AND cp.status_changed_time < NOW() - CAST( COALESCE( BTRIM( (SELECT value FROM actor.org_unit_ancestor_setting('circ.reshelving_complete.interval', cp.circ_lib)),'"' ), ? )  AS INTERVAL)
          )
    SQL
    my $sth = action::circulation->db_Main->prepare_cached($sql);
    $sth->execute($window);

    return $sth->rows;

}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.circulation.reshelving.complete',
    api_level       => 1,
    argc        => 1,
    method          => 'complete_reshelving',
);

sub mark_longoverdue {
    my $self = shift;
    my $client = shift;
    my $window = shift;

    local $OpenILS::Application::Storage::WRITE = 1;

    throw OpenSRF::EX::InvalidArg ("I need an interval of more than 0 seconds!")
        unless (interval_to_seconds( $window ));

    my $setting = actor::org_unit_setting->table;
    my $circ = action::circulation->table;

    my $sql = <<"    SQL";
        UPDATE  $circ
          SET   stop_fines = 'LONGOVERDUE',
            stop_fines_time = now()
          WHERE id IN (
            SELECT  circ.id
                      FROM  $circ circ
                            LEFT JOIN $setting setting
                                ON (circ.circ_lib = setting.org_unit AND setting.name = 'circ.long_overdue.interval')
                      WHERE circ.checkin_time IS NULL AND (stop_fines IS NULL OR stop_fines NOT IN ('LOST','LONGOVERDUE'))
                            AND AGE(circ.due_date) > CAST( COALESCE( BTRIM( setting.value,'"' ), ? )  AS INTERVAL)
                  )
    SQL

    my $sth = action::circulation->db_Main->prepare_cached($sql);
    $sth->execute($window);

    return $sth->rows;

}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.circulation.long_overdue',
    api_level       => 1,
    argc        => 1,
    method          => 'mark_longoverdue',
);

sub auto_thaw_frozen_holds {
    my $self = shift;
    my $client = shift;

    local $OpenILS::Application::Storage::WRITE = 1;

    my $holds = action::hold_request->table;

    my $sql = "UPDATE $holds SET frozen = FALSE WHERE frozen IS TRUE AND thaw_date < NOW();";

    my $sth = action::hold_request->db_Main->prepare_cached($sql);
    $sth->execute();

    return $sth->rows;

}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.hold_request.thaw_expired_frozen',
    api_level       => 1,
    stream      => 0,
    argc        => 0,
    method          => 'auto_thaw_frozen_holds',
);

sub grab_overdue {
    my $self = shift;
    my $client = shift;

    my $idlist = $self->api_name =~/id_list/o ? 1 : 0;
    
    $client->respond( $idlist ? $_ : $_->to_fieldmapper ) for ( overdue_circs('', $idlist) );

    return undef;

}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.circulation.overdue',
    api_level       => 1,
    stream          => 1,
    method          => 'grab_overdue',
    signature       => q/
        Return list of overdue circulations and reservations to be used for fine generation.
        Despite the name, this is not a generic method for retrieving all overdue loans,
        as it excludes loans that have already hit the maximum fine limit.
/,
);
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.circulation.overdue.id_list',
    api_level       => 1,
    stream      => 1,
    method          => 'grab_overdue',
);

sub get_hold_sort_order {
    my ($ou) = @_;

    my $dbh = action::hold_request->db_Main;

    # The purpose of this function is to return column names in a DB-configured
    # order, so it won't do to add columns here or change column names unless
    # you also change the expectation of anything calling this function.

    my $row = $dbh->selectrow_hashref(
        q!
        SELECT
            cbho.pprox, cbho.hprox, cbho.aprox, cbho.approx, cbho.priority,
            cbho.cut, cbho.depth, cbho.htime, cbho.shtime, cbho.rtime
        FROM config.best_hold_order cbho
        WHERE id = (
            SELECT oils_json_to_text(value)::INT
            FROM actor.org_unit_ancestor_setting('circ.hold_capture_order', ?)
        )
        !, undef, $ou
    ) || {
        pprox => 1, hprox => 8, aprox => 2, priority => 3,
        cut => 4, depth => 5, htime => 7, rtime => 6
    };

    # Return only the keys of our hash, sorted by value,
    # keys for null values omitted.
    return [
        grep { defined $row->{$_} } (
            sort {$row->{$a} cmp $row->{$b}} keys %$row
        )
    ];
}

# Returns an ORDER BY clause
# *and* a string with a CTE expression to precede the nearest-hold SQL query
# *and* a string with extra JOIN statements needed
sub build_hold_sort_clause {
    my ($columns, $cp, $here) = @_;

    my %order_by_sprintf_args = (
        hprox => [$cp->call_number->owning_lib],
        approx => [$cp->id, $here],
        htime => [$cp->call_number->owning_lib, $cp->call_number->owning_lib],
        shtime => [$cp->call_number->owning_lib, $cp->call_number->owning_lib]
    );

    my @clauses;
    my $ctes_needed = 0;
    foreach my $col (@$columns) {
        if ($col eq 'htime' and not $ctes_needed) {
            $ctes_needed = 1;
        } elsif ($col eq 'shtime') {
            $ctes_needed = 2;
        }

        my @args;
        @args = @{$order_by_sprintf_args{$col}} if
            exists $order_by_sprintf_args{$col};

        push @clauses, sprintf($HOLD_SORT_ORDER_BY{$col}, @args);

        last if $col eq 'rtime';    # rtime is effectively unique, no need for
                                    # more order-by clauses after that.
    }

    my ($ctes, $joins) = ("", "");
    if ($ctes_needed >= 1) {
        # Each CTE serves the next. The first is one version or another
        # of last_event_on_copy, which is described in holds-go-home.txt
        # TechRef, but it essentially returns place and time of the most
        # recent transit or circ to do with a copy, and failing that it
        # returns a synthetic event that means "here" and "now".

        if ($ctes_needed == 2) {
            $ctes .= sprintf(q!
, last_event_on_copy AS (    -- combined circ and transit version
    SELECT *
    FROM (
        (   SELECT
                TRUE AS concrete,
                dest AS place,
                COALESCE(dest_recv_time, source_send_time) AS moment
            FROM action.transit_copy
            WHERE target_copy = %d
            ORDER BY moment DESC LIMIT 1
        ) UNION (
            SELECT
                TRUE AS concrete,
                COALESCE(checkin_lib, circ_lib) AS place,
                COALESCE(checkin_time, xact_start) AS moment
            FROM action.circulation
            WHERE target_copy = %d
            ORDER BY moment DESC LIMIT 1
        ) UNION
            SELECT
                FALSE AS concrete,
                %d AS place,
                NOW() AS moment
    ) x ORDER BY concrete DESC, moment DESC LIMIT 1
) !, $cp->id, $cp->id, $cp->call_number->owning_lib);
        } else {
            $ctes .= sprintf(q!
, last_event_on_copy AS (   -- circ only version
    SELECT * FROM (
        ( SELECT
                TRUE AS concrete,
                COALESCE(checkin_lib, circ_lib) AS place,
                COALESCE(checkin_time, xact_start) AS moment
            FROM action.circulation
            WHERE target_copy = %d
            ORDER BY moment DESC LIMIT 1
        ) UNION SELECT
                FALSE AS concrete,
                %d AS place,
                NOW() AS moment
    ) x ORDER BY concrete DESC, moment DESC LIMIT 1
) !, $cp->id, $cp->call_number->owning_lib);
        }

        $joins .= q!
            JOIN last_event_on_copy ON (true)
        !;

        # For our next auxiliary query, the question we seek to answer is,
        # "has our copy been circulating away from home too long?"
        #
        # Have there been no checkouts at the copy's circ_lib since the
        # beginning of our go-home interval?

        # [We use sprintf because the outer function that's going to send one
        # big query through DBI is blind to our process of dynamically building
        # these CTEs, and it wouldn't know what bind parameters to pass unless
        # we did a lot more work here. This is injection-safe because we only
        # use the %d formatter.]
        $ctes .= sprintf(q!
, copy_has_not_been_home AS (
    SELECT (
        -- part 1
        SELECT MIN(circ.id) FROM action.circulation circ
        JOIN go_home_interval ON (true)
        WHERE
            circ.target_copy = %d AND
            circ.circ_lib = %d AND
            circ.xact_start >= NOW() - go_home_interval.value
    ) IS NULL AS result
) !, $cp->id, $cp->circ_lib);

        $joins .= q!
            JOIN copy_has_not_been_home ON (true)
        !;
    }

    if ($ctes_needed == 2) {
        # By this query, we mean to determine that the copy hasn't landed at
        # home by means of transit during the go-home interval (in addition
        # to not having circulated from home in the same time frame).
        #
        # There have been no homebound transits that arrived for this copy
        # since the beginning of the go-home interval.

        $ctes .= sprintf(q!
, copy_has_not_been_home_even_to_idle AS (
    SELECT result AND NOT (
        SELECT COUNT(*)::INT::BOOL
        FROM action.transit_copy atc
        WHERE
            atc.target_copy = %d AND
            (atc.dest = %d OR atc.source = %d) AND
            atc.dest_recv_time >= NOW() - (SELECT value FROM go_home_interval)
    ) AS result FROM copy_has_not_been_home
) !, $cp->id, $cp->circ_lib, $cp->circ_lib);
        $joins .= " JOIN copy_has_not_been_home_even_to_idle ON (true) ";
    }

    return (
        join(", ", @clauses),
        $ctes,
        $joins
    );
}

sub nearest_hold {
    my $self = shift;
    my $client = shift;
    my $here = shift;   # just the ID
    my $cp = shift;     # now an object with call_number fleshed,
                        # formerly just copy ID
    my $limit = int(shift()) || 10;
    my $age = shift() || '0 seconds';
    my $fifo = shift();

    $log->info("deprecated 'fifo' param true, but ignored") if isTrue($fifo);

    # ScriptBuilder fleshes the circ_lib, which confuses things; ensure we
    # are working with a circ lib ID and not an object
    my $cp_circ_lib;
    if (ref $cp->circ_lib) {
        $cp_circ_lib = $cp->circ_lib->id;
    } else {
        $cp_circ_lib = $cp->circ_lib;
    }

    my ($holdsort, $addl_cte, $addl_join) =
        build_hold_sort_clause(get_hold_sort_order($here), $cp, $here);

    local $OpenILS::Application::Storage::WRITE = 1;

    my $ids = action::hold_request->db_Main->selectcol_arrayref(<<"    SQL", {}, $cp_circ_lib, $here, $cp->id, $age);
        WITH go_home_interval AS (
            SELECT OILS_JSON_TO_TEXT(
                (SELECT value FROM actor.org_unit_ancestor_setting(
                    'circ.hold_go_home_interval', ?
                )
            ))::INTERVAL AS value
        )
        $addl_cte
        SELECT  h.id
          FROM  action.hold_request h
            JOIN actor.org_unit_proximity p ON (p.from_org = ? AND p.to_org = h.pickup_lib)
            JOIN action.hold_copy_map hm ON (hm.hold = h.id)
            JOIN actor.usr au ON (au.id = h.usr)
            JOIN permission.grp_tree pgt ON (au.profile = pgt.id)
            LEFT JOIN actor.usr_standing_penalty ausp
                ON ( au.id = ausp.usr AND ( ausp.stop_date IS NULL OR ausp.stop_date > NOW() ) )
            LEFT JOIN config.standing_penalty csp
                ON ( csp.id = ausp.standing_penalty AND csp.block_list LIKE '%CAPTURE%' )
            $addl_join
          WHERE hm.target_copy = ?
            AND (AGE(NOW(),h.request_time) >= CAST(? AS INTERVAL) OR p.prox = 0)
            AND h.capture_time IS NULL
            AND h.cancel_time IS NULL
            AND (h.expire_time IS NULL OR h.expire_time > NOW())
            AND h.frozen IS FALSE
            AND csp.id IS NULL
        ORDER BY CASE WHEN h.hold_type IN ('R','F') THEN 0 ELSE 1 END, $holdsort
        LIMIT $limit
    SQL
    
    $client->respond( $_ ) for ( @$ids );
    return undef;
}
__PACKAGE__->register_method(
    api_name    => 'open-ils.storage.action.hold_request.nearest_hold',
    api_level   => 1,
    stream      => 1,
    method      => 'nearest_hold',
);

sub targetable_holds {
    my $self = shift;
    my $client = shift;
    my $check_expire = shift;

    $check_expire ||= '12h';

    local $OpenILS::Application::Storage::WRITE = 1;

    # json_query can *almost* represent this query, but can't
    # handle the CASE statement or the interval arithmetic
    my $query = <<"    SQL";
        SELECT ahr.id, mmsm.metarecord
        FROM action.hold_request ahr
        JOIN reporter.hold_request_record USING (id)
        JOIN metabib.metarecord_source_map mmsm ON (bib_record = source)
        WHERE capture_time IS NULL
        AND (prev_check_time IS NULL or prev_check_time < (NOW() - ?::interval))
        AND fulfillment_time IS NULL
        AND cancel_time IS NULL
        AND NOT frozen
        ORDER BY CASE WHEN ahr.hold_type = 'F' THEN 0 ELSE 1 END, selection_depth DESC, request_time;
    SQL
    my $sth = action::hold_request->db_Main->prepare_cached($query);
    $sth->execute($check_expire);
    $client->respond( $_ ) for @{ $sth->fetchall_arrayref };

    return undef;
}

__PACKAGE__->register_method(
    api_name    => 'open-ils.storage.action.hold_request.targetable_holds.id_list',
    api_level   => 1,
    stream      => 1,
    method      => 'targetable_holds',
    signature   => q/
        Returns ordered list of hold request and metarecord IDs
        for all hold requests that are available for initial targeting
        or retargeting.
        @param check interval
        @return list of pairs of hold request and metarecord IDs
/,
);

sub next_resp_group_id {
    my $self = shift;
    my $client = shift;

    # XXX This is not replication safe!!!

    my ($id) = action::survey->db_Main->selectrow_array(<<"    SQL");
        SELECT NEXTVAL('action.survey_response_group_id_seq'::TEXT)
    SQL
    return $id;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.survey_response.next_group_id',
    api_level       => 1,
    method          => 'next_resp_group_id',
);

sub patron_circ_summary {
    my $self = shift;
    my $client = shift;
    my $id = ''.shift();

    return undef unless ($id);
    my $c_table = action::circulation->table;
    my $b_table = money::billing->table;

    $log->debug("Retrieving patron summary for id $id", DEBUG);

    my $select = <<"    SQL";
        SELECT  COUNT(DISTINCT c.id), SUM( COALESCE(b.amount,0) )
          FROM  $c_table c
            LEFT OUTER JOIN $b_table b ON (c.id = b.xact AND b.voided = FALSE)
          WHERE c.usr = ?
            AND c.xact_finish IS NULL
            AND (
                c.stop_fines NOT IN ('CLAIMSRETURNED','LOST')
                OR c.stop_fines IS NULL
            )
    SQL

    return action::survey->db_Main->selectrow_arrayref($select, {}, $id);
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.circulation.patron_summary',
    api_level       => 1,
    method          => 'patron_circ_summary',
);

#XXX Fix stored proc calls
sub find_local_surveys {
    my $self = shift;
    my $client = shift;
    my $ou = ''.shift();

    return undef unless ($ou);
    my $s_table = action::survey->table;

    my $select = <<"    SQL";
        SELECT  s.*
          FROM  $s_table s
            JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
          WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
    SQL

    my $sth = action::survey->db_Main->prepare_cached($select);
    $sth->execute($ou);

    $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );

    return undef;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.survey.all',
    api_level       => 1,
    stream          => 1,
    method          => 'find_local_surveys',
);

#XXX Fix stored proc calls
sub find_opac_surveys {
    my $self = shift;
    my $client = shift;
    my $ou = ''.shift();

    return undef unless ($ou);
    my $s_table = action::survey->table;

    my $select = <<"    SQL";
        SELECT  s.*
          FROM  $s_table s
            JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
          WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
            AND s.opac IS TRUE;
    SQL

    my $sth = action::survey->db_Main->prepare_cached($select);
    $sth->execute($ou);

    $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );

    return undef;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.survey.opac',
    api_level       => 1,
    stream          => 1,
    method          => 'find_opac_surveys',
);

sub hold_pull_list {
    my $self = shift;
    my $client = shift;
    my $ou = shift;
    my $limit = shift || 10;
    my $offset = shift || 0;

    return undef unless ($ou);
    my $h_table = action::hold_request->table;
    my $a_table = asset::copy->table;
    my $ord_table = asset::copy_location_order->table;

    my $idlist = 1 if ($self->api_name =~/id_list/o);
    my $count = 1 if ($self->api_name =~/count$/o);

    my $status_filter = '';
    $status_filter = 'AND a.status IN (0,7)' if ($self->api_name =~/status_filtered/o);

    my $select = <<"    SQL";
        SELECT  h.*
          FROM  $h_table h
            JOIN $a_table a ON (h.current_copy = a.id)
            LEFT JOIN $ord_table ord ON (a.location = ord.location AND a.circ_lib = ord.org)
            LEFT JOIN actor.usr_standing_penalty ausp 
                ON ( h.usr = ausp.usr AND ( ausp.stop_date IS NULL OR ausp.stop_date > NOW() ) )
            LEFT JOIN config.standing_penalty csp
                ON ( csp.id = ausp.standing_penalty AND csp.block_list LIKE '%CAPTURE%' )
          WHERE a.circ_lib = ?
            AND h.capture_time IS NULL
            AND h.cancel_time IS NULL
            AND (h.expire_time IS NULL OR h.expire_time > NOW())
            AND csp.id IS NULL
            $status_filter
          ORDER BY CASE WHEN ord.position IS NOT NULL THEN ord.position ELSE 999 END, h.request_time
          LIMIT $limit
          OFFSET $offset
    SQL

    if ($count) {
        $select = <<"        SQL";
            SELECT    count(*)
              FROM    $h_table h
                  JOIN $a_table a ON (h.current_copy = a.id)
                  LEFT JOIN actor.usr_standing_penalty ausp 
                    ON ( h.usr = ausp.usr AND ( ausp.stop_date IS NULL OR ausp.stop_date > NOW() ) )
                  LEFT JOIN config.standing_penalty csp
                    ON ( csp.id = ausp.standing_penalty AND csp.block_list LIKE '%CAPTURE%' )
              WHERE    a.circ_lib = ?
                  AND h.capture_time IS NULL
                  AND h.cancel_time IS NULL
                  AND (h.expire_time IS NULL OR h.expire_time > NOW())
                  AND csp.id IS NULL
                $status_filter
        SQL
    }

    my $sth = action::survey->db_Main->prepare_cached($select);
    $sth->execute($ou);

    if ($count) {
        $client->respond( $sth->fetchall_arrayref()->[0][0] );
    } elsif ($idlist) {
        $client->respond( $_->{id} ) for ( $sth->fetchall_hash );
    } else {
        $client->respond( $_->to_fieldmapper ) for ( map { action::hold_request->construct($_) } $sth->fetchall_hash );
    }

    return undef;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.current_copy_circ_lib.count',
    api_level       => 1,
    stream          => 1,
    signature   => [
        "Returns a count of holds for a specific library's pull list.",
        [ [org_unit => "The library's org id", "number"] ],
        ['A count of holds for the stated library to pull ', 'number']
    ],
    method          => 'hold_pull_list',
);
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.current_copy_circ_lib.status_filtered.count',
    api_level       => 1,
    stream          => 1,
    signature   => [
        "Returns a status filtered count of holds for a specific library's pull list.",
        [ [org_unit => "The library's org id", "number"] ],
        ['A status filtered count of holds for the stated library to pull ', 'number']
    ],
    method          => 'hold_pull_list',
);
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.id_list.current_copy_circ_lib',
    api_level       => 1,
    stream          => 1,
    signature   => [
        "Returns the hold ids for a specific library's pull list.",
        [ [org_unit => "The library's org id", "number"],
          [limit => 'An optional page size, defaults to 10', 'number'],
          [offset => 'Offset for paging, defaults to 0, 0 based', 'number'],
        ],
        ['A list of holds for the stated library to pull for', 'array']
    ],
    method          => 'hold_pull_list',
);
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.search.current_copy_circ_lib',
    api_level       => 1,
    stream          => 1,
    signature   => [
        "Returns the holds for a specific library's pull list.",
        [ [org_unit => "The library's org id", "number"],
          [limit => 'An optional page size, defaults to 10', 'number'],
          [offset => 'Offset for paging, defaults to 0, 0 based', 'number'],
        ],
        ['A list of holds for the stated library to pull for', 'array']
    ],
    method          => 'hold_pull_list',
);
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.id_list.current_copy_circ_lib.status_filtered',
    api_level       => 1,
    stream          => 1,
    signature   => [
        "Returns the hold ids for a specific library's pull list that are definitely in that library, based on status.",
        [ [org_unit => "The library's org id", "number"],
          [limit => 'An optional page size, defaults to 10', 'number'],
          [offset => 'Offset for paging, defaults to 0, 0 based', 'number'],
        ],
        ['A list of holds for the stated library to pull for', 'array']
    ],
    method          => 'hold_pull_list',
);
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.direct.action.hold_request.pull_list.search.current_copy_circ_lib.status_filtered',
    api_level       => 1,
    stream          => 1,
    signature   => [
        "Returns the holds for a specific library's pull list that are definitely in that library, based on status.",
        [ [org_unit => "The library's org id", "number"],
          [limit => 'An optional page size, defaults to 10', 'number'],
          [offset => 'Offset for paging, defaults to 0, 0 based', 'number'],
        ],
        ['A list of holds for the stated library to pull for', 'array']
    ],
    method          => 'hold_pull_list',
);

sub find_optional_surveys {
    my $self = shift;
    my $client = shift;
    my $ou = ''.shift();

    return undef unless ($ou);
    my $s_table = action::survey->table;

    my $select = <<"    SQL";
        SELECT  s.*
          FROM  $s_table s
            JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
          WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
            AND s.required IS FALSE;
    SQL

    my $sth = action::survey->db_Main->prepare_cached($select);
    $sth->execute($ou);

    $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );

    return undef;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.survey.optional',
    api_level       => 1,
    stream          => 1,
    method          => 'find_optional_surveys',
);

sub find_required_surveys {
    my $self = shift;
    my $client = shift;
    my $ou = ''.shift();

    return undef unless ($ou);
    my $s_table = action::survey->table;

    my $select = <<"    SQL";
        SELECT  s.*
          FROM  $s_table s
            JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
          WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
            AND s.required IS TRUE;
    SQL

    my $sth = action::survey->db_Main->prepare_cached($select);
    $sth->execute($ou);

    $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );

    return undef;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.survey.required',
    api_level       => 1,
    stream          => 1,
    method          => 'find_required_surveys',
);

sub find_usr_summary_surveys {
    my $self = shift;
    my $client = shift;
    my $ou = ''.shift();

    return undef unless ($ou);
    my $s_table = action::survey->table;

    my $select = <<"    SQL";
        SELECT  s.*
          FROM  $s_table s
            JOIN actor.org_unit_full_path(?) p ON (p.id = s.owner)
          WHERE CURRENT_TIMESTAMP BETWEEN s.start_date AND s.end_date
            AND s.usr_summary IS TRUE;
    SQL

    my $sth = action::survey->db_Main->prepare_cached($select);
    $sth->execute($ou);

    $client->respond( $_->to_fieldmapper ) for ( map { action::survey->construct($_) } $sth->fetchall_hash );

    return undef;
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.survey.usr_summary',
    api_level       => 1,
    stream          => 1,
    method          => 'find_usr_summary_surveys',
);

sub seconds_to_interval_hash {
        my $interval = shift;
        my $limit = shift || 's';
        $limit =~ s/^(.)/$1/o;

        my %output;

        my ($y,$ym,$M,$Mm,$w,$wm,$d,$dm,$h,$hm,$m,$mm,$s);
        my ($year, $month, $week, $day, $hour, $minute, $second) =
                ('years','months','weeks','days', 'hours', 'minutes', 'seconds');

        if ($y = int($interval / (60 * 60 * 24 * 365))) {
                $output{$year} = $y;
                $ym = $interval % (60 * 60 * 24 * 365);
        } else {
                $ym = $interval;
        }
        return %output if ($limit eq 'y');

        if ($M = int($ym / ((60 * 60 * 24 * 365)/12))) {
                $output{$month} = $M;
                $Mm = $ym % ((60 * 60 * 24 * 365)/12);
        } else {
                $Mm = $ym;
        }
        return %output if ($limit eq 'M');

        if ($w = int($Mm / 604800)) {
                $output{$week} = $w;
                $wm = $Mm % 604800;
        } else {
                $wm = $Mm;
        }
        return %output if ($limit eq 'w');

        if ($d = int($wm / 86400)) {
                $output{$day} = $d;
                $dm = $wm % 86400;
        } else {
                $dm = $wm;
        }
        return %output if ($limit eq 'd');

        if ($h = int($dm / 3600)) {
                $output{$hour} = $h;
                $hm = $dm % 3600;
        } else {
                $hm = $dm;
        }
        return %output if ($limit eq 'h');

        if ($m = int($hm / 60)) {
                $output{$minute} = $m;
                $mm = $hm % 60;
        } else {
                $mm = $hm;
        }
        return %output if ($limit eq 'm');

        if ($s = int($mm)) {
                $output{$second} = $s;
        } else {
                $output{$second} = 0 unless (keys %output);
        }
        return %output;
}


sub generate_fines {
    my $self = shift;
    my $client = shift;
    my $circ = shift;
    my $overbill = shift;

    local $OpenILS::Application::Storage::WRITE = 1;

    my @circs;
    if ($circ) {
        push @circs,
            action::circulation->search_where( { id => $circ, stop_fines => undef } ),
            booking::reservation->search_where( { id => $circ, return_time => undef, cancel_time => undef } );
    } else {
        push @circs, overdue_circs();
    }

    my %hoo = map { ( $_->id => $_ ) } actor::org_unit::hours_of_operation->retrieve_all;

    my $penalty = OpenSRF::AppSession->create('open-ils.penalty');
    for my $c (@circs) {

        my $ctype = ref($c);
        $ctype =~ s/^.+::(\w+)$/$1/;
    
        my $due_date_method = 'due_date';
        my $target_copy_method = 'target_copy';
        my $circ_lib_method = 'circ_lib';
        my $recurring_fine_method = 'recurring_fine';
        my $is_reservation = 0;
        if ($ctype eq 'reservation') {
            $is_reservation = 1;
            $due_date_method = 'end_time';
            $target_copy_method = 'current_resource';
            $circ_lib_method = 'pickup_lib';
            $recurring_fine_method = 'fine_amount';
            next unless ($c->fine_interval);
        }
        #TODO: reservation grace periods
        my $grace_period = ($is_reservation ? 0 : interval_to_seconds($c->grace_period));

        eval {
            if ($self->method_lookup('open-ils.storage.transaction.current')->run) {
                $log->debug("Cleaning up after previous transaction\n");
                $self->method_lookup('open-ils.storage.transaction.rollback')->run;
            }
            $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
            $log->info(
                sprintf("Processing %s %d...",
                    ($is_reservation ? "reservation" : "circ"), $c->id
                )
            );


            my $due_dt = $parser->parse_datetime( cleanse_ISO8601( $c->$due_date_method ) );
    
            my $due = $due_dt->epoch;
            my $now = time;

            my $fine_interval = $c->fine_interval;
            $fine_interval =~ s/(\d{2}):(\d{2}):(\d{2})/$1 h $2 m $3 s/o;
            $fine_interval = interval_to_seconds( $fine_interval );
    
            if ( $fine_interval == 0 || int($c->$recurring_fine_method * 100) == 0 || int($c->max_fine * 100) == 0 ) {
                $client->respond( "Fine Generator skipping circ due to 0 fine interval, 0 fine rate, or 0 max fine.\n" );
                $log->info( "Fine Generator skipping circ " . $c->id . " due to 0 fine interval, 0 fine rate, or 0 max fine." );
                return;
            }

            if ( $is_reservation and $fine_interval >= interval_to_seconds('1d') ) {    
                my $tz_offset_s = 0;
                if ($due_dt->strftime('%z') =~ /(-|\+)(\d{2}):?(\d{2})/) {
                    $tz_offset_s = $1 . interval_to_seconds( "${2}h ${3}m"); 
                }
    
                $due -= ($due % $fine_interval) + $tz_offset_s;
                $now -= ($now % $fine_interval) + $tz_offset_s;
            }
    
            $client->respond(
                "ARG! Overdue $ctype ".$c->id.
                " for item ".$c->$target_copy_method.
                " (user ".$c->usr.").\n".
                "\tItem was due on or before: ".localtime($due)."\n");
    
            my @fines = money::billing->search_where(
                { xact => $c->id,
                  btype => 1,
                  billing_ts => { '>' => $c->$due_date_method } },
                { order_by => 'billing_ts DESC'}
            );

            my $f_idx = 0;
            my $fine = $fines[$f_idx] if (@fines);
            if ($overbill) {
                $fine = $fines[++$f_idx] while ($fine and $fine->voided);
            }

            my $current_fine_total = 0;
            $current_fine_total += int($_->amount * 100) for (grep { $_ and !$_->voided } @fines);
    
            my $last_fine;
            if ($fine) {
                $client->respond( "Last billing time: ".$fine->billing_ts." (clensed format: ".cleanse_ISO8601( $fine->billing_ts ).")");
                $last_fine = $parser->parse_datetime( cleanse_ISO8601( $fine->billing_ts ) )->epoch;
            } else {
                $log->info( "Potential first billing for circ ".$c->id );
                $last_fine = $due;

                $grace_period = OpenILS::Application::Circ::CircCommon->extend_grace_period($c->$circ_lib_method->to_fieldmapper->id,$c->$due_date_method,$grace_period,undef,$hoo{$c->$circ_lib_method});
            }

            return if ($last_fine > $now);
            # Generate fines for each past interval, including the one we are inside
            my $pending_fine_count = ceil( ($now - $last_fine) / $fine_interval );

            if ( $last_fine == $due                         # we have no fines yet
                 && $grace_period                           # and we have a grace period
                 && $now < $due + $grace_period             # and some date math says were are within the grace period
            ) {
                $client->respond( "Still inside grace period of: ". seconds_to_interval( $grace_period )."\n" );
                $log->info( "Circ ".$c->id." is still inside grace period of: $grace_period [". seconds_to_interval( $grace_period ).']' );
                return;
            }

            $client->respond( "\t$pending_fine_count pending fine(s)\n" );
            return unless ($pending_fine_count);

            my $recurring_fine = int($c->$recurring_fine_method * 100);
            my $max_fine = int($c->max_fine * 100);

            my $skip_closed_check = $U->ou_ancestor_setting_value(
                $c->$circ_lib_method->to_fieldmapper->id, 'circ.fines.charge_when_closed');
            $skip_closed_check = $U->is_true($skip_closed_check);

            my $truncate_to_max_fine = $U->ou_ancestor_setting_value(
                $c->$circ_lib_method->to_fieldmapper->id, 'circ.fines.truncate_to_max_fine');
            $truncate_to_max_fine = $U->is_true($truncate_to_max_fine);

            my ($latest_billing_ts, $latest_amount) = ('',0);
            for (my $bill = 1; $bill <= $pending_fine_count; $bill++) {
    
                if ($current_fine_total >= $max_fine) {
                    $c->update({stop_fines => 'MAXFINES', stop_fines_time => 'now'}) if ($ctype eq 'circulation');
                    $client->respond(
                        "\tMaximum fine level of ".$c->max_fine.
                        " reached for this $ctype.\n".
                        "\tNo more fines will be generated.\n" );
                    last;
                }
                
                # XXX Use org time zone (or default to 'local') once we have the ou setting built for that
                my $billing_ts = DateTime->from_epoch( epoch => $last_fine, time_zone => 'local' );
                my $current_bill_count = $bill;
                while ( $current_bill_count ) {
                    $billing_ts->add( seconds_to_interval_hash( $fine_interval ) );
                    $current_bill_count--;
                }

                my $timestamptz = $billing_ts->strftime('%FT%T%z');
                if (!$skip_closed_check) {
                    my $dow = $billing_ts->day_of_week_0();
                    my $dow_open = "dow_${dow}_open";
                    my $dow_close = "dow_${dow}_close";

                    if (my $h = $hoo{$c->$circ_lib_method}) {
                        return if ( $h->$dow_open eq '00:00:00' and $h->$dow_close eq '00:00:00');
                    }
    
                    my @cl = actor::org_unit::closed_date->search_where(
                            { close_start   => { '<=' => $timestamptz },
                              close_end => { '>=' => $timestamptz },
                              org_unit  => $c->$circ_lib_method }
                    );
                    return if (@cl);
                }

                # The billing amount for this billing normally ought to be the recurring fine amount.
                # However, if the recurring fine amount would cause total fines to exceed the max fine amount,
                # we may wish to reduce the amount for this billing (if circ.fines.truncate_to_max_fine is true).
                my $this_billing_amount = $recurring_fine;
                if ( $truncate_to_max_fine && ($current_fine_total + $this_billing_amount) > $max_fine ) {
                    $this_billing_amount = ($max_fine - $current_fine_total);
                }
                $current_fine_total += $this_billing_amount;
                $latest_amount += $this_billing_amount;
                $latest_billing_ts = $timestamptz;

                money::billing->create(
                    { xact      => ''.$c->id,
                      note      => "System Generated Overdue Fine",
                      billing_type  => "Overdue materials",
                      btype     => 1,
                      amount    => sprintf('%0.2f', $this_billing_amount/100),
                      billing_ts    => $timestamptz,
                    }
                );

            }

            $client->respond( "\t\tAdding fines totaling $latest_amount for overdue up to $latest_billing_ts\n" )
                if ($latest_billing_ts and $latest_amount);

            $self->method_lookup('open-ils.storage.transaction.commit')->run;

            if(1) { 

                # Caluclate penalties inline
                OpenILS::Utils::Penalty->calculate_penalties(
                    undef, $c->usr->to_fieldmapper->id.'', $c->$circ_lib_method->to_fieldmapper->id.'');

            } else {

                # Calculate penalties with an aysnc call to the penalty server.  This approach
                # may lead to duplicate penalties since multiple penalty processes for a
                # given user may be running at the same time. Leave this here for reference 
                # in case we later find that asyc calls are needed in some environments.
                $penalty->request(
                    'open-ils.penalty.patron_penalty.calculate',
                    { patronid  => ''.$c->usr,
                    context_org => ''.$c->$circ_lib_method,
                    update  => 1,
                    background  => 1,
                    }
                )->gather(1);
            }

        };

        if ($@) {
            my $e = $@;
            $client->respond( "Error processing overdue $ctype [".$c->id."]:\n\n$e\n" );
            $log->error("Error processing overdue $ctype [".$c->id."]:\n$e\n");
            $self->method_lookup('open-ils.storage.transaction.rollback')->run;
            last if ($e =~ /IS NOT CONNECTED TO THE NETWORK/o);
        }
    }
}
__PACKAGE__->register_method(
    api_name        => 'open-ils.storage.action.circulation.overdue.generate_fines',
    api_level       => 1,
    stream      => 1,
    method          => 'generate_fines',
);



sub new_hold_copy_targeter {
    my $self = shift;
    my $client = shift;
    my $check_expire = shift;
    my $one_hold = shift;
    my $find_copy = shift;

    local $OpenILS::Application::Storage::WRITE = 1;

    $self->{target_weight} = {};
    $self->{max_loops} = {};

    my $holds;

    try {
        if ($one_hold) {
            $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
            $holds = [ action::hold_request->search_where( { id => $one_hold, fulfillment_time => undef, cancel_time => undef, frozen => 'f' } ) ];
        } elsif ( $check_expire ) {

            # what's the retarget time threashold?
            my $time = time;
            $check_expire ||= '12h';
            $check_expire = interval_to_seconds( $check_expire );

            my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime(time() - $check_expire);
            $year += 1900;
            $mon += 1;
            my $expire_threshold = sprintf(
                '%s-%0.2d-%0.2dT%0.2d:%0.2d:%0.2d-00',
                $year, $mon, $mday, $hour, $min, $sec
            );

            # find all the holds holds needing retargeting
            $holds = [ action::hold_request->search_where(
                            { capture_time => undef,
                              fulfillment_time => undef,
                              cancel_time => undef,
                              frozen => 'f',
                              prev_check_time => { '<=' => $expire_threshold },
                            },
                            { order_by => 'selection_depth DESC, request_time,prev_check_time' } ) ];

            # find all the holds holds needing first time targeting
            push @$holds, action::hold_request->search(
                            capture_time => undef,
                            fulfillment_time => undef,
                            prev_check_time => undef,
                            frozen => 'f',
                            cancel_time => undef,
                            { order_by => 'selection_depth DESC, request_time' } );
        } else {

            # find all the holds holds needing first time targeting ONLY
            $holds = [ action::hold_request->search(
                            capture_time => undef,
                            fulfillment_time => undef,
                            prev_check_time => undef,
                            cancel_time => undef,
                            frozen => 'f',
                            { order_by => 'selection_depth DESC, request_time' } ) ];
        }
    } catch Error with {
        my $e = shift;
        die "Could not retrieve uncaptured hold requests:\n\n$e\n";
    };

    my @closed = actor::org_unit::closed_date->search_where(
        { close_start => { '<=', 'now' },
          close_end => { '>=', 'now' } }
    );

    if ($check_expire) {

        # $check_expire, if it exists, was already converted to seconds
        my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = gmtime(time() + $check_expire);
        $year += 1900;
        $mon += 1;

        my $next_check_time = sprintf(
            '%s-%0.2d-%0.2dT%0.2d:%0.2d:%0.2d-00',
            $year, $mon, $mday, $hour, $min, $sec
        );


        my @closed_at_next = actor::org_unit::closed_date->search_where(
            { close_start => { '<=', $next_check_time },
              close_end => { '>=', $next_check_time } }
        );

        my @new_closed;
        for my $c_at_n (@closed_at_next) {
            if (grep { ''.$_->org_unit eq ''.$c_at_n->org_unit } @closed) {
                push @new_closed, $c_at_n;
            }
        }
        @closed = @new_closed;
    }

    my @successes;
    my $actor = OpenSRF::AppSession->create('open-ils.actor');

    my $target_when_closed = {};
    my $target_when_closed_if_at_pickup_lib = {};

    for my $hold (@$holds) {
        try {
            #start a transaction if needed
            if ($self->method_lookup('open-ils.storage.transaction.current')->run) {
                $log->debug("Cleaning up after previous transaction\n");
                $self->method_lookup('open-ils.storage.transaction.rollback')->run;
            }
            $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
            $log->info("Processing hold ".$hold->id."...\n");

            #first, re-fetch the hold, to make sure it's not captured already
            $hold->remove_from_object_index();
            $hold = action::hold_request->retrieve( $hold->id );

            die "OK\n" if (!$hold or $hold->capture_time or $hold->cancel_time);

            # remove old auto-targeting maps
            my @oldmaps = action::hold_copy_map->search( hold => $hold->id );
            $_->delete for (@oldmaps);

            if ($hold->expire_time) {
                my $ex_time = $parser->parse_datetime( cleanse_ISO8601( $hold->expire_time ) );
                if ( DateTime->compare($ex_time, DateTime->now) < 0 ) {

                    # cancel cause = un-targeted expiration
                    $hold->update( { cancel_time => 'now', cancel_cause => 1 } ); 

                    # refresh fields from the DB while still in the xact
                    my $fm_hold = $hold->to_fieldmapper; 

                    $self->method_lookup('open-ils.storage.transaction.commit')->run;

                    # tell A/T the hold was cancelled
                    my $ses = OpenSRF::AppSession->create('open-ils.trigger');
                    $ses->request('open-ils.trigger.event.autocreate', 
                        'hold_request.cancel.expire_no_target', $fm_hold, $fm_hold->pickup_lib);

                    die "OK\n";
                }
            }

            my $all_copies = [];

            # find filters for MR holds
            my ($types, $formats, $lang);
            if (defined($hold->holdable_formats)) {
                ($types, $formats, $lang) = split '-', $hold->holdable_formats;
            }

            # find all the potential copies
            if ($hold->hold_type eq 'M') {
                my $records = [
                    map {
                        isTrue($_->deleted) ?  () : ($_->id)
                    } metabib::metarecord->retrieve($hold->target)->source_records
                ];
                if(@$records > 0) {
                    for my $r ( map
                            {$_->record}
                            metabib::record_descriptor
                                ->search(
                                    record => $records,
                                    ( $types   ? (item_type => [split '', $types])   : () ),
                                    ( $formats ? (item_form => [split '', $formats]) : () ),
                                    ( $lang    ? (item_lang => $lang)                : () ),
                                )
                    ) {
                        my ($rtree) = $self
                            ->method_lookup( 'open-ils.storage.biblio.record_entry.ranged_tree')
                            ->run( $r->id, $hold->selection_ou, $hold->selection_depth );

                        for my $cn ( @{ $rtree->call_numbers } ) {
                            push @$all_copies,
                                asset::copy->search_where(
                                    { id => [map {$_->id} @{ $cn->copies }],
                                      deleted => 'f' }
                                ) if ($cn && @{ $cn->copies });
                        }
                    }
                }
            } elsif ($hold->hold_type eq 'T') {
                my ($rtree) = $self
                    ->method_lookup( 'open-ils.storage.biblio.record_entry.ranged_tree')
                    ->run( $hold->target, $hold->selection_ou, $hold->selection_depth );

                unless ($rtree) {
                    push @successes, { hold => $hold->id, eligible_copies => 0, error => 'NO_RECORD' };
                    die "OK\n";
                }

                for my $cn ( @{ $rtree->call_numbers } ) {
                    push @$all_copies,
                        asset::copy->search_where(
                            { id => [map {$_->id} @{ $cn->copies }],
                              deleted => 'f' }
                        ) if ($cn && @{ $cn->copies });
                }
            } elsif ($hold->hold_type eq 'V') {
                my ($vtree) = $self
                    ->method_lookup( 'open-ils.storage.asset.call_number.ranged_tree')
                    ->run( $hold->target, $hold->selection_ou, $hold->selection_depth );

                push @$all_copies,
                    asset::copy->search_where(
                        { id => [map {$_->id} @{ $vtree->copies }],
                          deleted => 'f' }
                    ) if ($vtree && @{ $vtree->copies });

            } elsif ($hold->hold_type eq 'P') {
                my @part_maps = asset::copy_part_map->search_where( { part => $hold->target } );
                $all_copies = [
                    asset::copy->search_where(
                        { id => [map {$_->target_copy} @part_maps],
                          deleted => 'f' }
                    )
                ] if (@part_maps);
                    
            } elsif ($hold->hold_type eq 'I') {
                my ($itree) = $self
                    ->method_lookup( 'open-ils.storage.serial.issuance.ranged_tree')
                    ->run( $hold->target, $hold->selection_ou, $hold->selection_depth );

                push @$all_copies,
                    asset::copy->search_where(
                        { id => [map {$_->unit->id} @{ $itree->items }],
                          deleted => 'f' }
                    ) if ($itree && @{ $itree->items });
                    
            } elsif  ($hold->hold_type eq 'C' || $hold->hold_type eq 'R' || $hold->hold_type eq 'F') {
                my $_cp = asset::copy->retrieve($hold->target);
                push @$all_copies, $_cp if $_cp;
            }

            # Force and recall holds bypass pretty much everything
            if ($hold->hold_type ne 'R' && $hold->hold_type ne 'F') {
                # trim unholdables
                @$all_copies = grep {   isTrue($_->status->holdable) && 
                            isTrue($_->location->holdable) && 
                            isTrue($_->holdable) &&
                            !isTrue($_->deleted) &&
                            (isTrue($hold->mint_condition) ? isTrue($_->mint_condition) : 1) &&
                            ( ( $hold->hold_type ne 'C' && $hold->hold_type ne 'I' # Copy-level holds don't care about parts
                                && $hold->hold_type ne 'P' ) ? $_->part_maps->count == 0 : 1)
                        } @$all_copies;
            }

            # let 'em know we're still working
            $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
            
            # if we have no copies ...
            if (!ref $all_copies || !@$all_copies) {
                $log->info("\tNo copies available for targeting at all!\n");
                push @successes, { hold => $hold->id, eligible_copies => 0, error => 'NO_COPIES' };

                $hold->update( { prev_check_time => 'today', current_copy => undef } );
                $self->method_lookup('open-ils.storage.transaction.commit')->run;
                die "OK\n";
            }

            my $copy_count = @$all_copies;
            my $found_copy = undef;
            $found_copy = 1 if($find_copy and grep $_ == $find_copy, @$all_copies);

            # map the potentials, so that we can pick up checkins
            # XXX Loop-based targeting may require that /only/ copies from this loop should be added to
            # XXX the potentials list.  If this is the cased, hold_copy_map creation will move down further.
            my $pu_lib = ''.$hold->pickup_lib;
            my $prox_list = create_prox_list( $self, $pu_lib, $all_copies, $hold );
            $log->debug( "\tMapping ".scalar(@$all_copies)." potential copies for hold ".$hold->id);
            for my $prox ( keys %$prox_list ) {
                action::hold_copy_map->create( { proximity => $prox, hold => $hold->id, target_copy => $_ } )
                    for keys( %{{ map { $_->id => 1 } @{$$prox_list{$prox}} }} );
            }

            #$client->status( new OpenSRF::DomainObject::oilsContinueStatus );

            my @good_copies;
            for my $c (@$all_copies) {
                # current target
                next if ($hold->current_copy and $c->id eq $hold->current_copy);

                # skip on circ lib is closed IFF we care
                my $ignore_closing;

                if (''.$hold->pickup_lib eq ''.$c->circ_lib) {
                    $ignore_closing = ou_ancestor_setting_value_or_cache(
                        $actor,
                        ''.$c->circ_lib,
                        'circ.holds.target_when_closed_if_at_pickup_lib',
                        $target_when_closed_if_at_pickup_lib
                    ) || 0;
                }
                if (not $ignore_closing) {  # one more chance to find a reason
                                            # to ignore OU closedness.
                    $ignore_closing = ou_ancestor_setting_value_or_cache(
                        $actor,
                        ''.$c->circ_lib,
                        'circ.holds.target_when_closed',
                        $target_when_closed
                    ) || 0;
                }

#               $logger->info(
#                   "For hold " . $hold->id . " and copy with circ_lib " .
#                   $c->circ_lib . " we " .
#                   ($ignore_closing ? "ignore" : "respect")
#                   . " closed dates"
#               );

                next if (
                    (not $ignore_closing) and
                    (grep { ''.$_->org_unit eq ''.$c->circ_lib } @closed)
                );

                # target of another hold
                next if (action::hold_request
                        ->search_where(
                            { current_copy => $c->id,
                              fulfillment_time => undef,
                              cancel_time => undef,
                            }
                        )
                );

                # we passed all three, keep it
                push @good_copies, $c if ($c);
                #$client->status( new OpenSRF::DomainObject::oilsContinueStatus );
            }

            $log->debug("\t".scalar(@good_copies)." (non-current) copies available for targeting...");

            my $old_best = $hold->current_copy;
            my $old_best_still_valid = 0; # Assume no, but the next line says yes if it is still a potential.
            $old_best_still_valid = 1 if ( $old_best && grep { ''.$old_best->id eq ''.$_->id } @$all_copies );
            $hold->update({ current_copy => undef }) if ($old_best);
    
            if (!scalar(@good_copies)) {
                $log->info("\tNo (non-current) copies eligible to fill the hold.");
                if ( $old_best_still_valid ) {
                    # the old copy is still available
                    $log->debug("\tPushing current_copy back onto the targeting list");
                    push @good_copies, $old_best;
                } else {
                    # oops, old copy is not available
                    $log->debug("\tcurrent_copy is no longer available for targeting... NEXT HOLD, PLEASE!");
                    $hold->update( { prev_check_time => 'today' } );
                    $self->method_lookup('open-ils.storage.transaction.commit')->run;
                    push @successes, { hold => $hold->id, eligible_copies => 0, error => 'NO_TARGETS' };
                    die "OK\n";
                }
            }

            # reset prox list after trimming good copies
            $prox_list = create_prox_list(
                $self, $pu_lib,
                [ grep { $_->status == 0 || $_->status == 7 } @good_copies ],
                $hold
            );

            $all_copies = [ grep { ''.$_->circ_lib ne $pu_lib && ( $_->status == 0 || $_->status == 7 ) } @good_copies ];

            my $min_prox = [ sort keys %$prox_list ]->[0];
            my $best;
            if  ($hold->hold_type eq 'R' || $hold->hold_type eq 'F') { # Recall/Force holds bypass hold rules.
                $best = $good_copies[0] if(scalar @good_copies);
            } else {
                $best = choose_nearest_copy($hold, { $min_prox => delete($$prox_list{$min_prox}) });
            }

            $client->status( new OpenSRF::DomainObject::oilsContinueStatus );

            if (!$best) {
                $log->debug("\tNothing at the pickup lib, looking elsewhere among ".scalar(@$all_copies)." copies");

                $self->{max_loops}{$pu_lib} = $actor->request(
                    'open-ils.actor.ou_setting.ancestor_default' => $pu_lib => 'circ.holds.max_org_unit_target_loops'
                )->gather(1);

                if (defined($self->{max_loops}{$pu_lib})) {
                    $self->{max_loops}{$pu_lib} = $self->{max_loops}{$pu_lib}{value};

                    my %circ_lib_map =  map { (''.$_->circ_lib => 1) } @$all_copies;
                    my $circ_lib_list = [keys %circ_lib_map];
    
                    my $cstore = OpenSRF::AppSession->create('open-ils.cstore');
    
                    # Grab the "biggest" loop for this hold so far
                    my $current_loop = $cstore->request(
                        'open-ils.cstore.json_query',
                        { distinct => 1,
                          select => { aufhmxl => ['max'] },
                          from => 'aufhmxl',
                          where => { hold => $hold->id}
                        }
                    )->gather(1);
    
                    $current_loop = $current_loop->{max} if ($current_loop);
                    $current_loop ||= 1;
    
                    my $exclude_list = $cstore->request(
                        'open-ils.cstore.json_query.atomic',
                        { distinct => 1,
                          select => { aufhol => ['circ_lib'] },
                          from => 'aufhol',
                          where => { hold => $hold->id}
                        }
                    )->gather(1);
    
                    my @keepers;
                    if ($exclude_list && @$exclude_list) {
                        $exclude_list = [map {$_->{circ_lib}} @$exclude_list];
                        # check to see if we've used up every library in the potentials list
                        for my $l ( @$circ_lib_list ) {
                            my $keep = 1;
                            for my $ex ( @$exclude_list ) {
                                if ($ex eq $l) {
                                    $keep = 0;
                                    last;
                                }
                            }
                            push(@keepers, $l) if ($keep);
                        }
                    } else {
                        @keepers = @$circ_lib_list;
                    }
    
                    $current_loop++ if (!@keepers);
    
                    if ($self->{max_loops}{$pu_lib} && $self->{max_loops}{$pu_lib} >= $current_loop) {
                        # We haven't exceeded max_loops yet
                        my @keeper_copies;
                        for my $cp ( @$all_copies ) {
                            push(@keeper_copies, $cp) if ( !@keepers || grep { $_ eq ''.$cp->circ_lib } @keepers );

                        }
                        $all_copies = [@keeper_copies];
                    } else {
                        # We have, and should remove potentials and cancel the hold
                        my @oldmaps = action::hold_copy_map->search( hold => $hold->id );
                        $_->delete for (@oldmaps);

                        # cancel cause = un-targeted expiration
                        $hold->update( { cancel_time => 'now', cancel_cause => 1 } ); 

                        # refresh fields from the DB while still in the xact
                        my $fm_hold = $hold->to_fieldmapper; 

                        $self->method_lookup('open-ils.storage.transaction.commit')->run;

                        # tell A/T the hold was cancelled
                        my $ses = OpenSRF::AppSession->create('open-ils.trigger');
                        $ses->request('open-ils.trigger.event.autocreate', 
                            'hold_request.cancel.expire_no_target', $fm_hold, $fm_hold->pickup_lib);

                        die "OK\n";
                    }

                    $prox_list = create_prox_list( $self, $pu_lib, $all_copies, $hold );

                    $client->status( new OpenSRF::DomainObject::oilsContinueStatus );

                }

                $best = choose_nearest_copy($hold, $prox_list);
            }

            $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
            if ($old_best) {
                # hold wasn't fulfilled, record the fact
            
                $log->info("\tHold was not (but should have been) fulfilled by ".$old_best->id);
                action::unfulfilled_hold_list->create(
                        { hold => ''.$hold->id,
                          current_copy => ''.$old_best->id,
                          circ_lib => ''.$old_best->circ_lib,
                        });
            }

            if ($best) {
                $hold->update( { current_copy => ''.$best->id, prev_check_time => 'now' } );
                $log->debug("\tUpdating hold [".$hold->id."] with new 'current_copy' [".$best->id."] for hold fulfillment.");
            } elsif (
                $old_best_still_valid &&
                !action::hold_request
                    ->search_where(
                        { current_copy => $old_best->id,
                          fulfillment_time => undef,
                          cancel_time => undef,
                        }       
                    ) &&
                ( OpenILS::Utils::PermitHold::permit_copy_hold(
                    { title => $old_best->call_number->record->to_fieldmapper,
                      title_descriptor => $old_best->call_number->record->record_descriptor->next->to_fieldmapper,
                      patron => $hold->usr->to_fieldmapper,
                      copy => $old_best->to_fieldmapper,
                      requestor => $hold->requestor->to_fieldmapper,
                      request_lib => $hold->request_lib->to_fieldmapper,
                      pickup_lib => $hold->pickup_lib->id,
                      retarget => 1
                    }
                ))
            ) {     
                $hold->update( { prev_check_time => 'now', current_copy => ''.$old_best->id } );
                $log->debug( "\tRetargeting the previously targeted copy [".$old_best->id."]" );
            } else {
                $hold->update( { prev_check_time => 'now' } );
                $log->info( "\tThere were no targetable copies for the hold" );
                process_recall($actor, $log, $hold, \@good_copies);
            }

            $self->method_lookup('open-ils.storage.transaction.commit')->run;
            $log->info("\tProcessing of hold ".$hold->id." complete.");

            push @successes,
                { hold => $hold->id,
                  old_target => ($old_best ? $old_best->id : undef),
                  eligible_copies => $copy_count,
                  target => ($best ? $best->id : undef),
                  found_copy => $found_copy };

        } otherwise {
            my $e = shift;
            if ($e !~ /^OK/o) {
                $log->error("Processing of hold failed:  $e");
                $self->method_lookup('open-ils.storage.transaction.rollback')->run;
                throw $e if ($e =~ /IS NOT CONNECTED TO THE NETWORK/o);
            }
        };
    }

    return \@successes;
}
__PACKAGE__->register_method(
    api_name    => 'open-ils.storage.action.hold_request.copy_targeter',
    api_level   => 1,
    method      => 'new_hold_copy_targeter',
);

sub process_recall {
    my ($actor, $log, $hold, $good_copies) = @_;

    # Bail early if we don't have required settings to avoid spurious requests
    my ($recall_threshold, $return_interval, $fine_rules);

    my $rv = $actor->request(
        'open-ils.actor.ou_setting.ancestor_default', ''.$hold->pickup_lib, 'circ.holds.recall_threshold'
    )->gather(1);

    if (!$rv) {
        $log->info("Recall threshold was not set; bailing out on hold ".$hold->id." processing.");
        return;
    }
    $recall_threshold = $rv->{value};

    $rv = $actor->request(
        'open-ils.actor.ou_setting.ancestor_default', ''.$hold->pickup_lib, 'circ.holds.recall_return_interval'
    )->gather(1);

    if (!$rv) {
        $log->info("Recall return interval was not set; bailing out on hold ".$hold->id." processing.");
        return;
    }
    $return_interval = $rv->{value};

    $rv = $actor->request(
        'open-ils.actor.ou_setting.ancestor_default', ''.$hold->pickup_lib, 'circ.holds.recall_fine_rules'
    )->gather(1);

    if ($rv) {
        $fine_rules = $rv->{value};
    }

    $log->info("Recall threshold: $recall_threshold; return interval: $return_interval");

    # We want checked out copies (status = 1) at the hold pickup lib
    my $all_copies = [grep { $_->status == 1 } grep {''.$_->circ_lib eq ''.$hold->pickup_lib } @$good_copies];

    my @copy_ids = map { $_->id } @$all_copies;

    $log->info("Found " . scalar(@$all_copies) . " eligible checked-out copies for recall");

    my $return_date = DateTime->now(time_zone => 'local')->add(seconds => interval_to_seconds($return_interval))->iso8601();

    # Iterate over the checked-out copies to find a copy with a
    # loan period longer than the recall threshold:
    my $circs = [ action::circulation->search_where(
        { target_copy => \@copy_ids, checkin_time => undef, duration => { '>' => $recall_threshold } },
        { order_by => 'due_date ASC' }
    )];

    # If we have a candidate copy, then:
    if (scalar(@$circs)) {
        my $circ = $circs->[0];
        $log->info("Recalling circ ID : " . $circ->id);

        # Give the user a new due date of either a full recall threshold,
        # or the return interval, whichever is further in the future
        my $threshold_date = DateTime::Format::ISO8601->parse_datetime(cleanse_ISO8601($circ->xact_start))->add(seconds => interval_to_seconds($recall_threshold))->iso8601();
        if (DateTime->compare(DateTime::Format::ISO8601->parse_datetime($threshold_date), DateTime::Format::ISO8601->parse_datetime($return_date)) == 1) {
            $return_date = $threshold_date;
        }

        my $update_fields = {
            due_date => $return_date,
            renewal_remaining => 0,
        };

        # If the OU hasn't defined new fine rules for recalls, keep them
        # as they were
        if ($fine_rules) {
            $log->info("Apply recall fine rules: $fine_rules");
            my $rules = OpenSRF::Utils::JSON->JSON2perl($fine_rules);
            $update_fields->{recurring_fine} = $rules->[0];
            $update_fields->{fine_interval} = $rules->[1];
            $update_fields->{max_fine} = $rules->[2];
        }

        # Adjust circ for current user
        $circ->update($update_fields);

        # Create trigger event for notifying current user
        my $ses = OpenSRF::AppSession->create('open-ils.trigger');
        $ses->request('open-ils.trigger.event.autocreate', 'circ.recall.target', $circ->to_fieldmapper(), $circ->circ_lib->id);
    }

    $log->info("Processing of hold ".$hold->id." for recall is now complete.");
}

sub reservation_targeter {
    my $self = shift;
    my $client = shift;
    my $one_reservation = shift;

    local $OpenILS::Application::Storage::WRITE = 1;

    my $reservations;

    try {
        if ($one_reservation) {
            $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
            $reservations = [ booking::reservation->search_where( { id => $one_reservation, capture_time => undef, cancel_time => undef } ) ];
        } else {

            # find all the reservations needing targeting
            $reservations = [
                booking::reservation->search_where(
                    { current_resource => undef,
                      cancel_time => undef,
                      start_time => { '>' => 'now' }
                    },
                    { order_by => 'start_time' }
                )
            ];
        }
    } catch Error with {
        my $e = shift;
        die "Could not retrieve reservation requests:\n\n$e\n";
    };

    my @successes = ();
    for my $bresv (@$reservations) {
        try {
            #start a transaction if needed
            if ($self->method_lookup('open-ils.storage.transaction.current')->run) {
                $log->debug("Cleaning up after previous transaction\n");
                $self->method_lookup('open-ils.storage.transaction.rollback')->run;
            }
            $self->method_lookup('open-ils.storage.transaction.begin')->run( $client );
            $log->info("Processing reservation ".$bresv->id."...\n");

            #first, re-fetch the hold, to make sure it's not captured already
            $bresv->remove_from_object_index();
            $bresv = booking::reservation->retrieve( $bresv->id );

            die "OK\n" if (!$bresv or $bresv->capture_time or $bresv->cancel_time);

            my $end_time = $parser->parse_datetime( cleanse_ISO8601( $bresv->end_time ) );
            if (DateTime->compare($end_time, DateTime->now) < 0) {

                # cancel cause = un-targeted expiration
                $bresv->update( { cancel_time => 'now' } ); 

                # refresh fields from the DB while still in the xact
                my $fm_bresv = $bresv->to_fieldmapper;

                $self->method_lookup('open-ils.storage.transaction.commit')->run;

                # tell A/T the reservation was cancelled
                my $ses = OpenSRF::AppSession->create('open-ils.trigger');
                $ses->request('open-ils.trigger.event.autocreate', 
                    'booking.reservation.cancel.expire_no_target', $fm_bresv, $fm_bresv->pickup_lib);

                die "OK\n";
            }

            my $possible_resources;

            # find all the potential resources
            if (!$bresv->target_resource) {
                my $filter = { type => $bresv->target_resource_type };
                my $attr_maps = [ booking::reservation_attr_value_map->search( reservation => $bresv->id) ];

                $filter->{attribute_values} = [ map { $_->attr_value } @$attr_maps ] if (@$attr_maps);

                $filter->{available} = [$bresv->start_time, $bresv->end_time];
                my $ses = OpenSRF::AppSession->create('open-ils.booking');
                $possible_resources = $ses->request('open-ils.booking.resources.filtered_id_list', undef, $filter)->gather(1);
            } else {
                $possible_resources = $bresv->target_resource;
            }

            my $all_resources = [ booking::resource->search( id => $possible_resources ) ];
            @$all_resources = grep { isTrue($_->type->transferable) || $_->owner.'' eq $bresv->pickup_lib.'' } @$all_resources;


            my @good_resources = ();
            my %conflicts = ();
            for my $res (@$all_resources) {
                unless (isTrue($res->type->catalog_item)) {
                    push @good_resources, $res;
                    next;
                }

                my $copy = [ asset::copy->search( deleted => 'f', barcode => $res->barcode )]->[0];

                unless ($copy) {
                    push @good_resources, $res;
                    next;
                }

                # At this point, if we're just targeting one specific
                # resource, just succeed. We don't care about its present
                # copy status.
                if ($bresv->target_resource) {
                    push @good_resources, $res;
                    next;
                }

                if ($copy->status->id == 0 || $copy->status->id == 7) {
                    push @good_resources, $res;
                    next;
                }

                if ($copy->status->id == 1) {
                    my $circs = [ action::circulation->search_where(
                        {target_copy => $copy->id, checkin_time => undef },
                        { order_by => 'id DESC' }
                    ) ];

                    if (@$circs) {
                        my $due_date = $circs->[0]->due_date;
                        $due_date = $parser->parse_datetime( cleanse_ISO8601( $due_date ) );
                        my $start_time = $parser->parse_datetime( cleanse_ISO8601( $bresv->start_time ) );
                        if (DateTime->compare($start_time, $due_date) < 0) {
                            $conflicts{$res->id} = $circs->[0]->to_fieldmapper;
                            next;
                        }

                        push @good_resources, $res;
                    }

                    next;
                }

                push @good_resources, $res if (isTrue($copy->status->holdable));
            }

            # let 'em know we're still working
            $client->status( new OpenSRF::DomainObject::oilsContinueStatus );
            
            # if we have no copies ...
            if (!@good_resources) {
                $log->info("\tNo resources available for targeting at all!\n");
                push @successes, { reservation => $bresv->id, eligible_copies => 0, error => 'NO_COPIES', conflicts => \%conflicts };


                $self->method_lookup('open-ils.storage.transaction.commit')->run;
                die "OK\n";
            }

            $log->debug("\t".scalar(@good_resources)." resources available for targeting...");

            # LFW: note that after the inclusion of hold proximity
            # adjustment, this prox_list is the only prox_list
            # array in this perl package.  Other occurences are
            # hashes.
            my $prox_list = [];
            $$prox_list[0] =
            [
                grep {
                    $_->owner == $bresv->pickup_lib
                } @good_resources
            ];

            $all_resources = [grep {$_->owner != $bresv->pickup_lib } @good_resources];
            # $all_copies is now a list of copies not at the pickup library

            my $best = shift @good_resources;
            $client->status( new OpenSRF::DomainObject::oilsContinueStatus );

            if (!$best) {
                $log->debug("\tNothing at the pickup lib, looking elsewhere among ".scalar(@$all_resources)." resources");

                $prox_list =
                    map  { $_->[1] }
                    sort { $a->[0] <=> $b->[0] }
                    map  {
                        [   actor::org_unit_proximity->search_where(
                                { from_org => $bresv->pickup_lib.'', to_org => $_->owner.'' }
                            )->[0]->prox,
                            $_
                        ]
                    } @$all_resources;

                $client->status( new OpenSRF::DomainObject::oilsContinueStatus );

                $best = shift @$prox_list
            }

            if ($best) {
                $bresv->update( { current_resource => ''.$best->id } );
                $log->debug("\tUpdating reservation [".$bresv->id."] with new 'current_resource' [".$best->id."] for reservation fulfillment.");
            }

            $self->method_lookup('open-ils.storage.transaction.commit')->run;
            $log->info("\tProcessing of bresv ".$bresv->id." complete.");

            push @successes,
                { reservation => $bresv->id,
                  current_resource => ($best ? $best->id : undef) };

        } otherwise {
            my $e = shift;
            if ($e !~ /^OK/o) {
                $log->error("Processing of bresv failed:  $e");
                $self->method_lookup('open-ils.storage.transaction.rollback')->run;
                throw $e if ($e =~ /IS NOT CONNECTED TO THE NETWORK/o);
            }
        };
    }

    return \@successes;
}
__PACKAGE__->register_method(
    api_name    => 'open-ils.storage.booking.reservation.resource_targeter',
    api_level   => 1,
    method      => 'reservation_targeter',
);

my $locations;
my $statuses;
my %cache = (titles => {}, cns => {});

sub copy_hold_capture {
    my $self = shift;
    my $hold = shift;
    my $cps = shift;

    if (!defined($cps)) {
        try {
            $cps = [ asset::copy->search( id => $hold->target ) ];
        } catch Error with {
            my $e = shift;
            die "Could not retrieve initial volume list:\n\n$e\n";
        };
    }

    my @copies = grep { $_->holdable } @$cps;

    for (my $i = 0; $i < @$cps; $i++) {
        next unless $$cps[$i];
        
        my $cn = $cache{cns}{$copies[$i]->call_number};
        my $rec = $cache{titles}{$cn->record};
        $copies[$i] = undef if ($copies[$i] && !grep{ $copies[$i]->status eq $_->id}@$statuses);
        $copies[$i] = undef if ($copies[$i] && !grep{ $copies[$i]->location eq $_->id}@$locations);
        $copies[$i] = undef if (
            !$copies[$i] ||
            !$self->{user_filter}->request(
                'open-ils.circ.permit_hold',
                $hold->to_fieldmapper, do {
                    my $cp_fm = $copies[$i]->to_fieldmapper;
                    $cp_fm->circ_lib( $copies[$i]->circ_lib->to_fieldmapper );
                    $cp_fm->location( $copies[$i]->location->to_fieldmapper );
                    $cp_fm->status( $copies[$i]->status->to_fieldmapper );
                    $cp_fm;
                },
                { title => $rec->to_fieldmapper,
                  usr => actor::user->retrieve($hold->usr)->to_fieldmapper,
                  requestor => actor::user->retrieve($hold->requestor)->to_fieldmapper,
                })->gather(1)
        );
        $self->{client}->status( new OpenSRF::DomainObject::oilsContinueStatus );
    }

    @copies = grep { $_ } @copies;

    my $count = @copies;

    return unless ($count);
    
    action::hold_copy_map->search( hold => $hold->id )->delete_all;
    
    my @maps;
    $self->{client}->respond( "\tMapping ".scalar(@copies)." eligable copies for hold ".$hold->id."\n");
    for my $c (@copies) {
        push @maps, action::hold_copy_map->create( { hold => $hold->id, target_copy => $c->id } );
    }
    $self->{client}->respond( "\tA total of ".scalar(@maps)." mapping were created for hold ".$hold->id."\n");

    return \@copies;
}


sub choose_nearest_copy {
    my $hold = shift;
    my $prox_list = shift;

    for my $p ( sort keys %$prox_list ) {
        next unless (ref $$prox_list{$p});

        my @capturable = @{ $$prox_list{$p} };
        next unless (@capturable);

        my $rand = int(rand(scalar(@capturable)));
        my %seen = ();
        while (my ($c) = splice(@capturable, $rand, 1)) {
            return $c if !exists($seen{$c->id}) && ( OpenILS::Utils::PermitHold::permit_copy_hold(
                { title => $c->call_number->record->to_fieldmapper,
                  title_descriptor => $c->call_number->record->record_descriptor->next->to_fieldmapper,
                  patron => $hold->usr->to_fieldmapper,
                  copy => $c->to_fieldmapper,
                  requestor => $hold->requestor->to_fieldmapper,
                  request_lib => $hold->request_lib->to_fieldmapper,
                  pickup_lib => $hold->pickup_lib->id,
                  retarget => 1
                }
            ));
            $seen{$c->id}++;

            last unless(@capturable);
            $rand = int(rand(scalar(@capturable)));
        }
    }
}

sub create_prox_list {
    my $self = shift;
    my $lib = shift;
    my $copies = shift;
    my $hold = shift;

    my $actor = OpenSRF::AppSession->create('open-ils.actor');

    my %prox_list;
    for my $cp (@$copies) {
        my ($prox) = $self->method_lookup('open-ils.storage.asset.copy.proximity')->run( $cp, $lib, $hold );
        next unless (defined($prox));

        my $copy_circ_lib = ''.$cp->circ_lib;
        # Fetch the weighting value for hold targeting, defaulting to 1
        $self->{target_weight}{$copy_circ_lib} ||= $actor->request(
            'open-ils.actor.ou_setting.ancestor_default' => $copy_circ_lib.'' => 'circ.holds.org_unit_target_weight'
        )->gather(1);
        $self->{target_weight}{$copy_circ_lib} = $self->{target_weight}{$copy_circ_lib}{value} if (ref $self->{target_weight}{$copy_circ_lib});
        $self->{target_weight}{$copy_circ_lib} ||= 1;

        $prox_list{$prox} = [] unless defined($prox_list{$prox});
        for my $w ( 1 .. $self->{target_weight}{$copy_circ_lib} ) {
            push @{$prox_list{$prox}}, $cp;
        }
    }
    return \%prox_list;
}

sub volume_hold_capture {
    my $self = shift;
    my $hold = shift;
    my $vols = shift;

    if (!defined($vols)) {
        try {
            $vols = [ asset::call_number->search( id => $hold->target ) ];
            $cache{cns}{$_->id} = $_ for (@$vols);
        } catch Error with {
            my $e = shift;
            die "Could not retrieve initial volume list:\n\n$e\n";
        };
    }

    my @v_ids = map { $_->id } @$vols;

    my $cp_list;
    try {
        $cp_list = [ asset::copy->search( call_number => \@v_ids ) ];
    
    } catch Error with {
        my $e = shift;
        warn "Could not retrieve copy list:\n\n$e\n";
    };

    $self->copy_hold_capture($hold,$cp_list) if (ref $cp_list and @$cp_list);
}

sub title_hold_capture {
    my $self = shift;
    my $hold = shift;
    my $titles = shift;

    if (!defined($titles)) {
        try {
            $titles = [ biblio::record_entry->search( id => $hold->target ) ];
            $cache{titles}{$_->id} = $_ for (@$titles);
        } catch Error with {
            my $e = shift;
            die "Could not retrieve initial title list:\n\n$e\n";
        };
    }

    my @t_ids = map { $_->id } @$titles;
    my $cn_list;
    try {
        ($cn_list) = $self->method_lookup('open-ils.storage.direct.asset.call_number.search.record.atomic')->run( \@t_ids );
    
    } catch Error with {
        my $e = shift;
        warn "Could not retrieve volume list:\n\n$e\n";
    };

    $cache{cns}{$_->id} = $_ for (@$cn_list);

    $self->volume_hold_capture($hold,$cn_list) if (ref $cn_list and @$cn_list);
}

sub metarecord_hold_capture {
    my $self = shift;
    my $hold = shift;

    my $titles;
    try {
        $titles = [ metabib::metarecord_source_map->search( metarecord => $hold->target) ];
    
    } catch Error with {
        my $e = shift;
        die "Could not retrieve initial title list:\n\n$e\n";
    };

    try {
        my @recs = map {$_->record} metabib::record_descriptor->search( record => $titles, item_type => [split '', $hold->holdable_formats] ); 

        $titles = [ biblio::record_entry->search( id => \@recs ) ];
    
    } catch Error with {
        my $e = shift;
        die "Could not retrieve format-pruned title list:\n\n$e\n";
    };


    $cache{titles}{$_->id} = $_ for (@$titles);
    $self->title_hold_capture($hold,$titles) if (ref $titles and @$titles);
}

1;