package Koha::Patron;

# Copyright ByWater Solutions 2014
# Copyright PTFS Europe 2016
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Koha; if not, see <http://www.gnu.org/licenses>.

use Modern::Perl;

use Carp;
use List::MoreUtils qw( any uniq );
use JSON qw( to_json );
use Unicode::Normalize;

use C4::Context;
use C4::Log;
use Koha::Account;
use Koha::ArticleRequests;
use Koha::AuthUtils;
use Koha::Checkouts;
use Koha::Club::Enrollments;
use Koha::Database;
use Koha::DateUtils;
use Koha::Exceptions::Password;
use Koha::Holds;
use Koha::Old::Checkouts;
use Koha::Patron::Attributes;
use Koha::Patron::Categories;
use Koha::Patron::HouseboundProfile;
use Koha::Patron::HouseboundRole;
use Koha::Patron::Images;
use Koha::Patron::Modifications;
use Koha::Patron::Relationships;
use Koha::Patrons;
use Koha::Plugins;
use Koha::Subscription::Routinglists;
use Koha::Token;
use Koha::Virtualshelves;

use base qw(Koha::Object);

use constant ADMINISTRATIVE_LOCKOUT => -1;

our $RESULTSET_PATRON_ID_MAPPING = {
    Accountline          => 'borrowernumber',
    Aqbasketuser         => 'borrowernumber',
    Aqbudget             => 'budget_owner_id',
    Aqbudgetborrower     => 'borrowernumber',
    ArticleRequest       => 'borrowernumber',
    BorrowerAttribute    => 'borrowernumber',
    BorrowerDebarment    => 'borrowernumber',
    BorrowerFile         => 'borrowernumber',
    BorrowerModification => 'borrowernumber',
    ClubEnrollment       => 'borrowernumber',
    Issue                => 'borrowernumber',
    ItemsLastBorrower    => 'borrowernumber',
    Linktracker          => 'borrowernumber',
    Message              => 'borrowernumber',
    MessageQueue         => 'borrowernumber',
    OldIssue             => 'borrowernumber',
    OldReserve           => 'borrowernumber',
    Rating               => 'borrowernumber',
    Reserve              => 'borrowernumber',
    Review               => 'borrowernumber',
    SearchHistory        => 'userid',
    Statistic            => 'borrowernumber',
    Suggestion           => 'suggestedby',
    TagAll               => 'borrowernumber',
    Virtualshelfcontent  => 'borrowernumber',
    Virtualshelfshare    => 'borrowernumber',
    Virtualshelve        => 'owner',
};

=head1 NAME

Koha::Patron - Koha Patron Object class

=head1 API

=head2 Class Methods

=head3 new

=cut

sub new {
    my ( $class, $params ) = @_;

    return $class->SUPER::new($params);
}

=head3 fixup_cardnumber

Autogenerate next cardnumber from highest value found in database

=cut

sub fixup_cardnumber {
    my ( $self ) = @_;
    my $max = Koha::Patrons->search({
        cardnumber => {-regexp => '^-?[0-9]+$'}
    }, {
        select => \'CAST(cardnumber AS SIGNED)',
        as => ['cast_cardnumber']
    })->_resultset->get_column('cast_cardnumber')->max;
    $self->cardnumber(($max || 0) +1);
}

=head3 trim_whitespace

trim whitespace from data which has some non-whitespace in it.
Could be moved to Koha::Object if need to be reused

=cut

sub trim_whitespaces {
    my( $self ) = @_;

    my $schema  = Koha::Database->new->schema;
    my @columns = $schema->source($self->_type)->columns;

    for my $column( @columns ) {
        my $value = $self->$column;
        if ( defined $value ) {
            $value =~ s/^\s*|\s*$//g;
            $self->$column($value);
        }
    }
    return $self;
}

=head3 plain_text_password

$patron->plain_text_password( $password );

stores a copy of the unencrypted password in the object
for use in code before encrypting for db

=cut

sub plain_text_password {
    my ( $self, $password ) = @_;
    if ( $password ) {
        $self->{_plain_text_password} = $password;
        return $self;
    }
    return $self->{_plain_text_password}
        if $self->{_plain_text_password};

    return;
}

=head3 store

Patron specific store method to cleanup record
and do other necessary things before saving
to db

=cut

sub store {
    my ($self) = @_;

    $self->_result->result_source->schema->txn_do(
        sub {
            if (
                C4::Context->preference("autoMemberNum")
                and ( not defined $self->cardnumber
                    or $self->cardnumber eq '' )
              )
            {
                # Warning: The caller is responsible for locking the members table in write
                # mode, to avoid database corruption.
                # We are in a transaction but the table is not locked
                $self->fixup_cardnumber;
            }

            unless( $self->category->in_storage ) {
                Koha::Exceptions::Object::FKConstraint->throw(
                    broken_fk => 'categorycode',
                    value     => $self->categorycode,
                );
            }

            $self->trim_whitespaces;

            # Set surname to uppercase if uppercasesurname is true
            $self->surname( uc($self->surname) )
                if C4::Context->preference("uppercasesurnames");

            $self->relationship(undef) # We do not want to store an empty string in this field
              if defined $self->relationship
                     and $self->relationship eq "";

            unless ( $self->in_storage ) {    #AddMember

                # Generate a valid userid/login if needed
                $self->generate_userid
                  if not $self->userid or not $self->has_valid_userid;

                # Add expiration date if it isn't already there
                unless ( $self->dateexpiry ) {
                    $self->dateexpiry( $self->category->get_expiry_date );
                }

                # Add enrollment date if it isn't already there
                unless ( $self->dateenrolled ) {
                    $self->dateenrolled(dt_from_string);
                }

                # Set the privacy depending on the patron's category
                my $default_privacy = $self->category->default_privacy || q{};
                $default_privacy =
                    $default_privacy eq 'default' ? 1
                  : $default_privacy eq 'never'   ? 2
                  : $default_privacy eq 'forever' ? 0
                  :                                                   undef;
                $self->privacy($default_privacy);

                # Call any check_password plugins if password is passed
                if ( C4::Context->config("enable_plugins") && $self->password ) {
                    my @plugins = Koha::Plugins->new()->GetPlugins({
                        method => 'check_password',
                    });
                    foreach my $plugin ( @plugins ) {
                        # This plugin hook will also be used by a plugin for the Norwegian national
                        # patron database. This is why we need to pass both the password and the
                        # borrowernumber to the plugin.
                        my $ret = $plugin->check_password(
                            {
                                password       => $self->password,
                                borrowernumber => $self->borrowernumber
                            }
                        );
                        if ( $ret->{'error'} == 1 ) {
                            Koha::Exceptions::Password::Plugin->throw();
                        }
                    }
                }

                # Make a copy of the plain text password for later use
                $self->plain_text_password( $self->password );

                # Create a disabled account if no password provided
                $self->password( $self->password
                    ? Koha::AuthUtils::hash_password( $self->password )
                    : '!' );

                $self->borrowernumber(undef);

                $self = $self->SUPER::store;

                $self->add_enrolment_fee_if_needed(0);

                logaction( "MEMBERS", "CREATE", $self->borrowernumber, "" )
                  if C4::Context->preference("BorrowersLog");
            }
            else {    #ModMember

                my $self_from_storage = $self->get_from_storage;
                # FIXME We should not deal with that here, callers have to do this job
                # Moved from ModMember to prevent regressions
                unless ( $self->userid ) {
                    my $stored_userid = $self_from_storage->userid;
                    $self->userid($stored_userid);
                }

                # Password must be updated using $self->set_password
                $self->password($self_from_storage->password);

                if ( $self->category->categorycode ne
                    $self_from_storage->category->categorycode )
                {
                    # Add enrolement fee on category change if required
                    $self->add_enrolment_fee_if_needed(1)
                      if C4::Context->preference('FeeOnChangePatronCategory');

                    # Clean up guarantors on category change if required
                    $self->guarantor_relationships->delete
                      if ( $self->category->category_type ne 'C'
                        && $self->category->category_type ne 'P' );

                }

                # Actionlogs
                if ( C4::Context->preference("BorrowersLog") ) {
                    my $info;
                    my $from_storage = $self_from_storage->unblessed;
                    my $from_object  = $self->unblessed;
                    my @skip_fields  = (qw/lastseen updated_on/);
                    for my $key ( keys %{$from_storage} ) {
                        next if any { /$key/ } @skip_fields;
                        if (
                            (
                                  !defined( $from_storage->{$key} )
                                && defined( $from_object->{$key} )
                            )
                            || ( defined( $from_storage->{$key} )
                                && !defined( $from_object->{$key} ) )
                            || (
                                   defined( $from_storage->{$key} )
                                && defined( $from_object->{$key} )
                                && ( $from_storage->{$key} ne
                                    $from_object->{$key} )
                            )
                          )
                        {
                            $info->{$key} = {
                                before => $from_storage->{$key},
                                after  => $from_object->{$key}
                            };
                        }
                    }

                    if ( defined($info) ) {
                        logaction(
                            "MEMBERS",
                            "MODIFY",
                            $self->borrowernumber,
                            to_json(
                                $info,
                                { utf8 => 1, pretty => 1, canonical => 1 }
                            )
                        );
                    }
                }

                # Final store
                $self = $self->SUPER::store;
            }
        }
    );
    return $self;
}

=head3 delete

$patron->delete

Delete patron's holds, lists and finally the patron.

Lists owned by the borrower are deleted, but entries from the borrower to
other lists are kept.

=cut

sub delete {
    my ($self) = @_;

    my $anonymous_patron = C4::Context->preference("AnonymousPatron");
    Koha::Exceptions::Patron::FailedDeleteAnonymousPatron->throw() if $anonymous_patron && $self->id eq $anonymous_patron;

    $self->_result->result_source->schema->txn_do(
        sub {
            # Cancel Patron's holds
            my $holds = $self->holds;
            while( my $hold = $holds->next ){
                $hold->cancel;
            }

            # Delete all lists and all shares of this borrower
            # Consistent with the approach Koha uses on deleting individual lists
            # Note that entries in virtualshelfcontents added by this borrower to
            # lists of others will be handled by a table constraint: the borrower
            # is set to NULL in those entries.
            # NOTE:
            # We could handle the above deletes via a constraint too.
            # But a new BZ report 11889 has been opened to discuss another approach.
            # Instead of deleting we could also disown lists (based on a pref).
            # In that way we could save shared and public lists.
            # The current table constraints support that idea now.
            # This pref should then govern the results of other routines/methods such as
            # Koha::Virtualshelf->new->delete too.
            # FIXME Could be $patron->get_lists
            $_->delete for Koha::Virtualshelves->search( { owner => $self->borrowernumber } );

            # We cannot have a FK on borrower_modifications.borrowernumber, the table is also used
            # for patron selfreg
            $_->delete for Koha::Patron::Modifications->search( { borrowernumber => $self->borrowernumber } );

            $self->SUPER::delete;

            logaction( "MEMBERS", "DELETE", $self->borrowernumber, "" ) if C4::Context->preference("BorrowersLog");
        }
    );
    return $self;
}


=head3 category

my $patron_category = $patron->category

Return the patron category for this patron

=cut

sub category {
    my ( $self ) = @_;
    return Koha::Patron::Category->_new_from_dbic( $self->_result->categorycode );
}

=head3 image

=cut

sub image {
    my ( $self ) = @_;

    return Koha::Patron::Images->find( $self->borrowernumber );
}

=head3 library

Returns a Koha::Library object representing the patron's home library.

=cut

sub library {
    my ( $self ) = @_;
    return Koha::Library->_new_from_dbic($self->_result->branchcode);
}

=head3 sms_provider

Returns a Koha::SMS::Provider object representing the patron's SMS provider.

=cut

sub sms_provider {
    my ( $self ) = @_;
    my $sms_provider_rs = $self->_result->sms_provider;
    return unless $sms_provider_rs;
    return Koha::SMS::Provider->_new_from_dbic($sms_provider_rs);
}

=head3 guarantor_relationships

Returns Koha::Patron::Relationships object for this patron's guarantors

Returns the set of relationships for the patrons that are guarantors for this patron.

This is returned instead of a Koha::Patron object because the guarantor
may not exist as a patron in Koha. If this is true, the guarantors name
exists in the Koha::Patron::Relationship object and will have no guarantor_id.

=cut

sub guarantor_relationships {
    my ($self) = @_;

    return Koha::Patron::Relationships->search( { guarantee_id => $self->id } );
}

=head3 guarantee_relationships

Returns Koha::Patron::Relationships object for this patron's guarantors

Returns the set of relationships for the patrons that are guarantees for this patron.

The method returns Koha::Patron::Relationship objects for the sake
of consistency with the guantors method.
A guarantee by definition must exist as a patron in Koha.

=cut

sub guarantee_relationships {
    my ($self) = @_;

    return Koha::Patron::Relationships->search(
        { guarantor_id => $self->id },
        {
            prefetch => 'guarantee',
            order_by => { -asc => [ 'guarantee.surname', 'guarantee.firstname' ] },
        }
    );
}

=head3 relationships_debt

Returns the amount owed by the patron's guarantors *and* the other guarantees of those guarantors

=cut

sub relationships_debt {
    my ($self, $params) = @_;

    my $include_guarantors  = $params->{include_guarantors};
    my $only_this_guarantor = $params->{only_this_guarantor};
    my $include_this_patron = $params->{include_this_patron};

    my @guarantors;
    if ( $only_this_guarantor ) {
        @guarantors = $self->guarantee_relationships->count ? ( $self ) : ();
        Koha::Exceptions::BadParameter->throw( { parameter => 'only_this_guarantor' } ) unless @guarantors;
    } elsif ( $self->guarantor_relationships->count ) {
        # I am a guarantee, just get all my guarantors
        @guarantors = $self->guarantor_relationships->guarantors;
    } else {
        # I am a guarantor, I need to get all the guarantors of all my guarantees
        @guarantors = map { $_->guarantor_relationships->guarantors } $self->guarantee_relationships->guarantees;
    }

    my $non_issues_charges = 0;
    my $seen = $include_this_patron ? {} : { $self->id => 1 }; # For tracking members already added to the total
    foreach my $guarantor (@guarantors) {
        $non_issues_charges += $guarantor->account->non_issues_charges if $include_guarantors && !$seen->{ $guarantor->id };

        # We've added what the guarantor owes, not added in that guarantor's guarantees as well
        my @guarantees = map { $_->guarantee } $guarantor->guarantee_relationships();
        my $guarantees_non_issues_charges = 0;
        foreach my $guarantee (@guarantees) {
            next if $seen->{ $guarantee->id };
            $guarantees_non_issues_charges += $guarantee->account->non_issues_charges;
            # Mark this guarantee as seen so we don't double count a guarantee linked to multiple guarantors
            $seen->{ $guarantee->id } = 1;
        }

        $non_issues_charges += $guarantees_non_issues_charges;
        $seen->{ $guarantor->id } = 1;
    }

    return $non_issues_charges;
}

=head3 housebound_profile

Returns the HouseboundProfile associated with this patron.

=cut

sub housebound_profile {
    my ( $self ) = @_;
    my $profile = $self->_result->housebound_profile;
    return Koha::Patron::HouseboundProfile->_new_from_dbic($profile)
        if ( $profile );
    return;
}

=head3 housebound_role

Returns the HouseboundRole associated with this patron.

=cut

sub housebound_role {
    my ( $self ) = @_;

    my $role = $self->_result->housebound_role;
    return Koha::Patron::HouseboundRole->_new_from_dbic($role) if ( $role );
    return;
}

=head3 siblings

Returns the siblings of this patron.

=cut

sub siblings {
    my ($self) = @_;

    my @guarantors = $self->guarantor_relationships()->guarantors();

    return unless @guarantors;

    my @siblings =
      map { $_->guarantee_relationships()->guarantees() } @guarantors;

    return unless @siblings;

    my %seen;
    @siblings =
      grep { !$seen{ $_->id }++ && ( $_->id != $self->id ) } @siblings;

    return wantarray ? @siblings : Koha::Patrons->search( { borrowernumber => { -in => [ map { $_->id } @siblings ] } } );
}

=head3 merge_with

    my $patron = Koha::Patrons->find($id);
    $patron->merge_with( \@patron_ids );

    This subroutine merges a list of patrons into the patron record. This is accomplished by finding
    all related patron ids for the patrons to be merged in other tables and changing the ids to be that
    of the keeper patron.

=cut

sub merge_with {
    my ( $self, $patron_ids ) = @_;

    my $anonymous_patron = C4::Context->preference("AnonymousPatron");
    return if $anonymous_patron && $self->id eq $anonymous_patron;

    my @patron_ids = @{ $patron_ids };

    # Ensure the keeper isn't in the list of patrons to merge
    @patron_ids = grep { $_ ne $self->id } @patron_ids;

    my $schema = Koha::Database->new()->schema();

    my $results;

    $self->_result->result_source->schema->txn_do( sub {
        foreach my $patron_id (@patron_ids) {

            next if $patron_id eq $anonymous_patron;

            my $patron = Koha::Patrons->find( $patron_id );

            next unless $patron;

            # Unbless for safety, the patron will end up being deleted
            $results->{merged}->{$patron_id}->{patron} = $patron->unblessed;

            while (my ($r, $field) = each(%$RESULTSET_PATRON_ID_MAPPING)) {
                my $rs = $schema->resultset($r)->search({ $field => $patron_id });
                $results->{merged}->{ $patron_id }->{updated}->{$r} = $rs->count();
                $rs->update({ $field => $self->id });
            }

            $patron->move_to_deleted();
            $patron->delete();
        }
    });

    return $results;
}



=head3 wants_check_for_previous_checkout

    $wants_check = $patron->wants_check_for_previous_checkout;

Return 1 if Koha needs to perform PrevIssue checking, else 0.

=cut

sub wants_check_for_previous_checkout {
    my ( $self ) = @_;
    my $syspref = C4::Context->preference("checkPrevCheckout");

    # Simple cases
    ## Hard syspref trumps all
    return 1 if ($syspref eq 'hardyes');
    return 0 if ($syspref eq 'hardno');
    ## Now, patron pref trumps all
    return 1 if ($self->checkprevcheckout eq 'yes');
    return 0 if ($self->checkprevcheckout eq 'no');

    # More complex: patron inherits -> determine category preference
    my $checkPrevCheckoutByCat = $self->category->checkprevcheckout;
    return 1 if ($checkPrevCheckoutByCat eq 'yes');
    return 0 if ($checkPrevCheckoutByCat eq 'no');

    # Finally: category preference is inherit, default to 0
    if ($syspref eq 'softyes') {
        return 1;
    } else {
        return 0;
    }
}

=head3 do_check_for_previous_checkout

    $do_check = $patron->do_check_for_previous_checkout($item);

Return 1 if the bib associated with $ITEM has previously been checked out to
$PATRON, 0 otherwise.

=cut

sub do_check_for_previous_checkout {
    my ( $self, $item ) = @_;

    my @item_nos;
    my $biblio = Koha::Biblios->find( $item->{biblionumber} );
    if ( $biblio->is_serial ) {
        push @item_nos, $item->{itemnumber};
    } else {
        # Get all itemnumbers for given bibliographic record.
        @item_nos = $biblio->items->get_column( 'itemnumber' );
    }

    # Create (old)issues search criteria
    my $criteria = {
        borrowernumber => $self->borrowernumber,
        itemnumber => \@item_nos,
    };

    # Check current issues table
    my $issues = Koha::Checkouts->search($criteria);
    return 1 if $issues->count; # 0 || N

    # Check old issues table
    my $old_issues = Koha::Old::Checkouts->search($criteria);
    return $old_issues->count;  # 0 || N
}

=head3 is_debarred

my $debarment_expiration = $patron->is_debarred;

Returns the date a patron debarment will expire, or undef if the patron is not
debarred

=cut

sub is_debarred {
    my ($self) = @_;

    return unless $self->debarred;
    return $self->debarred
      if $self->debarred =~ '^9999'
      or dt_from_string( $self->debarred ) > dt_from_string;
    return;
}

=head3 is_expired

my $is_expired = $patron->is_expired;

Returns 1 if the patron is expired or 0;

=cut

sub is_expired {
    my ($self) = @_;
    return 0 unless $self->dateexpiry;
    return 0 if $self->dateexpiry =~ '^9999';
    return 1 if dt_from_string( $self->dateexpiry ) < dt_from_string->truncate( to => 'day' );
    return 0;
}

=head3 is_going_to_expire

my $is_going_to_expire = $patron->is_going_to_expire;

Returns 1 if the patron is going to expired, depending on the NotifyBorrowerDeparture pref or 0

=cut

sub is_going_to_expire {
    my ($self) = @_;

    my $delay = C4::Context->preference('NotifyBorrowerDeparture') || 0;

    return 0 unless $delay;
    return 0 unless $self->dateexpiry;
    return 0 if $self->dateexpiry =~ '^9999';
    return 1 if dt_from_string( $self->dateexpiry, undef, 'floating' )->subtract( days => $delay ) < dt_from_string(undef, undef, 'floating')->truncate( to => 'day' );
    return 0;
}

=head3 set_password

    $patron->set_password({ password => $plain_text_password [, skip_validation => 1 ] });

Set the patron's password.

=head4 Exceptions

The passed string is validated against the current password enforcement policy.
Validation can be skipped by passing the I<skip_validation> parameter.

Exceptions are thrown if the password is not good enough.

=over 4

=item Koha::Exceptions::Password::TooShort

=item Koha::Exceptions::Password::WhitespaceCharacters

=item Koha::Exceptions::Password::TooWeak

=item Koha::Exceptions::Password::Plugin (if a "check password" plugin is enabled)

=back

=cut

sub set_password {
    my ( $self, $args ) = @_;

    my $password = $args->{password};

    unless ( $args->{skip_validation} ) {
        my ( $is_valid, $error ) = Koha::AuthUtils::is_password_valid( $password, $self->category );

        if ( !$is_valid ) {
            if ( $error eq 'too_short' ) {
                my $min_length = $self->category->effective_min_password_length;
                $min_length = 3 if not $min_length or $min_length < 3;

                my $password_length = length($password);
                Koha::Exceptions::Password::TooShort->throw(
                    length => $password_length, min_length => $min_length );
            }
            elsif ( $error eq 'has_whitespaces' ) {
                Koha::Exceptions::Password::WhitespaceCharacters->throw();
            }
            elsif ( $error eq 'too_weak' ) {
                Koha::Exceptions::Password::TooWeak->throw();
            }
        }
    }

    if ( C4::Context->config("enable_plugins") ) {
        # Call any check_password plugins
        my @plugins = Koha::Plugins->new()->GetPlugins({
            method => 'check_password',
        });
        foreach my $plugin ( @plugins ) {
            # This plugin hook will also be used by a plugin for the Norwegian national
            # patron database. This is why we need to pass both the password and the
            # borrowernumber to the plugin.
            my $ret = $plugin->check_password(
                {
                    password       => $password,
                    borrowernumber => $self->borrowernumber
                }
            );
            # This plugin hook will also be used by a plugin for the Norwegian national
            # patron database. This is why we need to call the actual plugins and then
            # check skip_validation afterwards.
            if ( $ret->{'error'} == 1 && !$args->{skip_validation} ) {
                Koha::Exceptions::Password::Plugin->throw();
            }
        }
    }

    my $digest = Koha::AuthUtils::hash_password($password);

    # We do not want to call $self->store and retrieve password from DB
    $self->password($digest);
    $self->login_attempts(0);
    $self->SUPER::store;

    logaction( "MEMBERS", "CHANGE PASS", $self->borrowernumber, "" )
        if C4::Context->preference("BorrowersLog");

    return $self;
}


=head3 renew_account

my $new_expiry_date = $patron->renew_account

Extending the subscription to the expiry date.

=cut

sub renew_account {
    my ($self) = @_;
    my $date;
    if ( C4::Context->preference('BorrowerRenewalPeriodBase') eq 'combination' ) {
        $date = ( dt_from_string gt dt_from_string( $self->dateexpiry ) ) ? dt_from_string : dt_from_string( $self->dateexpiry );
    } else {
        $date =
            C4::Context->preference('BorrowerRenewalPeriodBase') eq 'dateexpiry'
            ? dt_from_string( $self->dateexpiry )
            : dt_from_string;
    }
    my $expiry_date = $self->category->get_expiry_date($date);

    $self->dateexpiry($expiry_date);
    $self->date_renewed( dt_from_string() );
    $self->store();

    $self->add_enrolment_fee_if_needed(1);

    logaction( "MEMBERS", "RENEW", $self->borrowernumber, "Membership renewed" ) if C4::Context->preference("BorrowersLog");
    return dt_from_string( $expiry_date )->truncate( to => 'day' );
}

=head3 has_overdues

my $has_overdues = $patron->has_overdues;

Returns the number of patron's overdues

=cut

sub has_overdues {
    my ($self) = @_;
    my $dtf = Koha::Database->new->schema->storage->datetime_parser;
    return $self->_result->issues->search({ date_due => { '<' => $dtf->format_datetime( dt_from_string() ) } })->count;
}

=head3 track_login

    $patron->track_login;
    $patron->track_login({ force => 1 });

    Tracks a (successful) login attempt.
    The preference TrackLastPatronActivity must be enabled. Or you
    should pass the force parameter.

=cut

sub track_login {
    my ( $self, $params ) = @_;
    return if
        !$params->{force} &&
        !C4::Context->preference('TrackLastPatronActivity');
    $self->lastseen( dt_from_string() )->store;
}

=head3 move_to_deleted

my $is_moved = $patron->move_to_deleted;

Move a patron to the deletedborrowers table.
This can be done before deleting a patron, to make sure the data are not completely deleted.

=cut

sub move_to_deleted {
    my ($self) = @_;
    my $patron_infos = $self->unblessed;
    delete $patron_infos->{updated_on}; #This ensures the updated_on date in deletedborrowers will be set to the current timestamp
    return Koha::Database->new->schema->resultset('Deletedborrower')->create($patron_infos);
}

=head3 article_requests

my @requests = $borrower->article_requests();
my $requests = $borrower->article_requests();

Returns either a list of ArticleRequests objects,
or an ArtitleRequests object, depending on the
calling context.

=cut

sub article_requests {
    my ( $self ) = @_;

    $self->{_article_requests} ||= Koha::ArticleRequests->search({ borrowernumber => $self->borrowernumber() });

    return $self->{_article_requests};
}

=head3 article_requests_current

my @requests = $patron->article_requests_current

Returns the article requests associated with this patron that are incomplete

=cut

sub article_requests_current {
    my ( $self ) = @_;

    $self->{_article_requests_current} ||= Koha::ArticleRequests->search(
        {
            borrowernumber => $self->id(),
            -or          => [
                { status => Koha::ArticleRequest::Status::Pending },
                { status => Koha::ArticleRequest::Status::Processing }
            ]
        }
    );

    return $self->{_article_requests_current};
}

=head3 article_requests_finished

my @requests = $biblio->article_requests_finished

Returns the article requests associated with this patron that are completed

=cut

sub article_requests_finished {
    my ( $self, $borrower ) = @_;

    $self->{_article_requests_finished} ||= Koha::ArticleRequests->search(
        {
            borrowernumber => $self->id(),
            -or          => [
                { status => Koha::ArticleRequest::Status::Completed },
                { status => Koha::ArticleRequest::Status::Canceled }
            ]
        }
    );

    return $self->{_article_requests_finished};
}

=head3 add_enrolment_fee_if_needed

my $enrolment_fee = $patron->add_enrolment_fee_if_needed($renewal);

Add enrolment fee for a patron if needed.

$renewal - boolean denoting whether this is an account renewal or not

=cut

sub add_enrolment_fee_if_needed {
    my ($self, $renewal) = @_;
    my $enrolment_fee = $self->category->enrolmentfee;
    if ( $enrolment_fee && $enrolment_fee > 0 ) {
        my $type = $renewal ? 'ACCOUNT_RENEW' : 'ACCOUNT';
        $self->account->add_debit(
            {
                amount     => $enrolment_fee,
                user_id    => C4::Context->userenv ? C4::Context->userenv->{'number'} : undef,
                interface  => C4::Context->interface,
                library_id => C4::Context->userenv ? C4::Context->userenv->{'branch'} : undef,
                type       => $type
            }
        );
    }
    return $enrolment_fee || 0;
}

=head3 checkouts

my $checkouts = $patron->checkouts

=cut

sub checkouts {
    my ($self) = @_;
    my $checkouts = $self->_result->issues;
    return Koha::Checkouts->_new_from_dbic( $checkouts );
}

=head3 pending_checkouts

my $pending_checkouts = $patron->pending_checkouts

This method will return the same as $self->checkouts, but with a prefetch on
items, biblio and biblioitems.

It has been introduced to replaced the C4::Members::GetPendingIssues subroutine

It should not be used directly, prefer to access fields you need instead of
retrieving all these fields in one go.

=cut

sub pending_checkouts {
    my( $self ) = @_;
    my $checkouts = $self->_result->issues->search(
        {},
        {
            order_by => [
                { -desc => 'me.timestamp' },
                { -desc => 'issuedate' },
                { -desc => 'issue_id' }, # Sort by issue_id should be enough
            ],
            prefetch => { item => { biblio => 'biblioitems' } },
        }
    );
    return Koha::Checkouts->_new_from_dbic( $checkouts );
}

=head3 old_checkouts

my $old_checkouts = $patron->old_checkouts

=cut

sub old_checkouts {
    my ($self) = @_;
    my $old_checkouts = $self->_result->old_issues;
    return Koha::Old::Checkouts->_new_from_dbic( $old_checkouts );
}

=head3 get_overdues

my $overdue_items = $patron->get_overdues

Return the overdue items

=cut

sub get_overdues {
    my ($self) = @_;
    my $dtf = Koha::Database->new->schema->storage->datetime_parser;
    return $self->checkouts->search(
        {
            'me.date_due' => { '<' => $dtf->format_datetime(dt_from_string) },
        },
        {
            prefetch => { item => { biblio => 'biblioitems' } },
        }
    );
}

=head3 get_routing_lists

my @routinglists = $patron->get_routing_lists

Returns the routing lists a patron is subscribed to.

=cut

sub get_routing_lists {
    my ($self) = @_;
    my $routing_list_rs = $self->_result->subscriptionroutinglists;
    return Koha::Subscription::Routinglists->_new_from_dbic($routing_list_rs);
}

=head3 get_age

my $age = $patron->get_age

Return the age of the patron

=cut

sub get_age {
    my ($self)    = @_;
    my $today_str = dt_from_string->strftime("%Y-%m-%d");
    return unless $self->dateofbirth;
    my $dob_str   = dt_from_string( $self->dateofbirth )->strftime("%Y-%m-%d");

    my ( $dob_y,   $dob_m,   $dob_d )   = split /-/, $dob_str;
    my ( $today_y, $today_m, $today_d ) = split /-/, $today_str;

    my $age = $today_y - $dob_y;
    if ( $dob_m . $dob_d > $today_m . $today_d ) {
        $age--;
    }

    return $age;
}

=head3 is_valid_age

my $is_valid = $patron->is_valid_age

Return 1 if patron's age is between allowed limits, returns 0 if it's not.

=cut

sub is_valid_age {
    my ($self) = @_;
    my $age = $self->get_age;

    my $patroncategory = $self->category;
    my ($low,$high) = ($patroncategory->dateofbirthrequired, $patroncategory->upperagelimit);

    return (defined($age) && (($high && ($age > $high)) or ($age < $low))) ? 0 : 1;
}

=head3 account

my $account = $patron->account

=cut

sub account {
    my ($self) = @_;
    return Koha::Account->new( { patron_id => $self->borrowernumber } );
}

=head3 holds

my $holds = $patron->holds

Return all the holds placed by this patron

=cut

sub holds {
    my ($self) = @_;
    my $holds_rs = $self->_result->reserves->search( {}, { order_by => 'reservedate' } );
    return Koha::Holds->_new_from_dbic($holds_rs);
}

=head3 old_holds

my $old_holds = $patron->old_holds

Return all the historical holds for this patron

=cut

sub old_holds {
    my ($self) = @_;
    my $old_holds_rs = $self->_result->old_reserves->search( {}, { order_by => 'reservedate' } );
    return Koha::Old::Holds->_new_from_dbic($old_holds_rs);
}

=head3 return_claims

my $return_claims = $patron->return_claims

=cut

sub return_claims {
    my ($self) = @_;
    my $return_claims = $self->_result->return_claims_borrowernumbers;
    return Koha::Checkouts::ReturnClaims->_new_from_dbic( $return_claims );
}

=head3 notice_email_address

  my $email = $patron->notice_email_address;

Return the email address of patron used for notices.
Returns the empty string if no email address.

=cut

sub notice_email_address{
    my ( $self ) = @_;

    my $which_address = C4::Context->preference("AutoEmailPrimaryAddress");
    # if syspref is set to 'first valid' (value == OFF), look up email address
    if ( $which_address eq 'OFF' ) {
        return $self->first_valid_email_address;
    }

    return $self->$which_address || '';
}

=head3 first_valid_email_address

my $first_valid_email_address = $patron->first_valid_email_address

Return the first valid email address for a patron.
For now, the order  is defined as email, emailpro, B_email.
Returns the empty string if the borrower has no email addresses.

=cut

sub first_valid_email_address {
    my ($self) = @_;

    return $self->email() || $self->emailpro() || $self->B_email() || q{};
}

=head3 get_club_enrollments

=cut

sub get_club_enrollments {
    my ( $self, $return_scalar ) = @_;

    my $e = Koha::Club::Enrollments->search( { borrowernumber => $self->borrowernumber(), date_canceled => undef } );

    return $e if $return_scalar;

    return wantarray ? $e->as_list : $e;
}

=head3 get_enrollable_clubs

=cut

sub get_enrollable_clubs {
    my ( $self, $is_enrollable_from_opac, $return_scalar ) = @_;

    my $params;
    $params->{is_enrollable_from_opac} = $is_enrollable_from_opac
      if $is_enrollable_from_opac;
    $params->{is_email_required} = 0 unless $self->first_valid_email_address();

    $params->{borrower} = $self;

    my $e = Koha::Clubs->get_enrollable($params);

    return $e if $return_scalar;

    return wantarray ? $e->as_list : $e;
}

=head3 account_locked

my $is_locked = $patron->account_locked

Return true if the patron has reached the maximum number of login attempts
(see pref FailedLoginAttempts). If login_attempts is < 0, this is interpreted
as an administrative lockout (independent of FailedLoginAttempts; see also
Koha::Patron->lock).
Otherwise return false.
If the pref is not set (empty string, null or 0), the feature is considered as
disabled.

=cut

sub account_locked {
    my ($self) = @_;
    my $FailedLoginAttempts = C4::Context->preference('FailedLoginAttempts');
    return 1 if $FailedLoginAttempts
          and $self->login_attempts
          and $self->login_attempts >= $FailedLoginAttempts;
    return 1 if ($self->login_attempts || 0) < 0; # administrative lockout
    return 0;
}

=head3 can_see_patron_infos

my $can_see = $patron->can_see_patron_infos( $patron );

Return true if the patron (usually the logged in user) can see the patron's infos for a given patron

=cut

sub can_see_patron_infos {
    my ( $self, $patron ) = @_;
    return unless $patron;
    return $self->can_see_patrons_from( $patron->library->branchcode );
}

=head3 can_see_patrons_from

my $can_see = $patron->can_see_patrons_from( $branchcode );

Return true if the patron (usually the logged in user) can see the patron's infos from a given library

=cut

sub can_see_patrons_from {
    my ( $self, $branchcode ) = @_;
    my $can = 0;
    if ( $self->branchcode eq $branchcode ) {
        $can = 1;
    } elsif ( $self->has_permission( { borrowers => 'view_borrower_infos_from_any_libraries' } ) ) {
        $can = 1;
    } elsif ( my $library_groups = $self->library->library_groups ) {
        while ( my $library_group = $library_groups->next ) {
            if ( $library_group->parent->has_child( $branchcode ) ) {
                $can = 1;
                last;
            }
        }
    }
    return $can;
}

=head3 libraries_where_can_see_patrons

my $libraries = $patron-libraries_where_can_see_patrons;

Return the list of branchcodes(!) of libraries the patron is allowed to see other patron's infos.
The branchcodes are arbitrarily returned sorted.
We are supposing here that the object is related to the logged in patron (use of C4::Context::only_my_library)

An empty array means no restriction, the patron can see patron's infos from any libraries.

=cut

sub libraries_where_can_see_patrons {
    my ( $self ) = @_;
    my $userenv = C4::Context->userenv;

    return () unless $userenv; # For tests, but userenv should be defined in tests...

    my @restricted_branchcodes;
    if (C4::Context::only_my_library) {
        push @restricted_branchcodes, $self->branchcode;
    }
    else {
        unless (
            $self->has_permission(
                { borrowers => 'view_borrower_infos_from_any_libraries' }
            )
          )
        {
            my $library_groups = $self->library->library_groups({ ft_hide_patron_info => 1 });
            if ( $library_groups->count )
            {
                while ( my $library_group = $library_groups->next ) {
                    my $parent = $library_group->parent;
                    if ( $parent->has_child( $self->branchcode ) ) {
                        push @restricted_branchcodes, $parent->children->get_column('branchcode');
                    }
                }
            }

            @restricted_branchcodes = ( $self->branchcode ) unless @restricted_branchcodes;
        }
    }

    @restricted_branchcodes = grep { defined $_ } @restricted_branchcodes;
    @restricted_branchcodes = uniq(@restricted_branchcodes);
    @restricted_branchcodes = sort(@restricted_branchcodes);
    return @restricted_branchcodes;
}

=head3 has_permission

my $permission = $patron->has_permission($required);

See C4::Auth::haspermission for details of syntax for $required

=cut

sub has_permission {
    my ( $self, $flagsrequired ) = @_;
    return unless $self->userid;
    # TODO code from haspermission needs to be moved here!
    return C4::Auth::haspermission( $self->userid, $flagsrequired );
}

=head3 is_superlibrarian

  my $is_superlibrarian = $patron->is_superlibrarian;

Return true if the patron is a superlibrarian.

=cut

sub is_superlibrarian {
    my ($self) = @_;
    return $self->has_permission( { superlibrarian => 1 } ) ? 1 : 0;
}

=head3 is_adult

my $is_adult = $patron->is_adult

Return true if the patron has a category with a type Adult (A) or Organization (I)

=cut

sub is_adult {
    my ( $self ) = @_;
    return $self->category->category_type =~ /^(A|I)$/ ? 1 : 0;
}

=head3 is_child

my $is_child = $patron->is_child

Return true if the patron has a category with a type Child (C)

=cut

sub is_child {
    my( $self ) = @_;
    return $self->category->category_type eq 'C' ? 1 : 0;
}

=head3 has_valid_userid

my $patron = Koha::Patrons->find(42);
$patron->userid( $new_userid );
my $has_a_valid_userid = $patron->has_valid_userid

my $patron = Koha::Patron->new( $params );
my $has_a_valid_userid = $patron->has_valid_userid

Return true if the current userid of this patron is valid/unique, otherwise false.

Note that this should be done in $self->store instead and raise an exception if needed.

=cut

sub has_valid_userid {
    my ($self) = @_;

    return 0 unless $self->userid;

    return 0 if ( $self->userid eq C4::Context->config('user') );    # DB user

    my $already_exists = Koha::Patrons->search(
        {
            userid => $self->userid,
            (
                $self->in_storage
                ? ( borrowernumber => { '!=' => $self->borrowernumber } )
                : ()
            ),
        }
    )->count;
    return $already_exists ? 0 : 1;
}

=head3 generate_userid

my $patron = Koha::Patron->new( $params );
$patron->generate_userid

Generate a userid using the $surname and the $firstname (if there is a value in $firstname).

Set a generated userid ($firstname.$surname if there is a $firstname, or $surname if there is no value in $firstname) plus offset (0 if the $userid is unique, or a higher numeric value if not unique).

=cut

sub generate_userid {
    my ($self) = @_;
    my $offset = 0;
    my $firstname = $self->firstname // q{};
    my $surname = $self->surname // q{};
    #The script will "do" the following code and increment the $offset until the generated userid is unique
    do {
      $firstname =~ s/[[:digit:][:space:][:blank:][:punct:][:cntrl:]]//g;
      $surname =~ s/[[:digit:][:space:][:blank:][:punct:][:cntrl:]]//g;
      my $userid = lc(($firstname)? "$firstname.$surname" : $surname);
      $userid = NFKD( $userid );
      $userid =~ s/\p{NonspacingMark}//g;
      $userid .= $offset unless $offset == 0;
      $self->userid( $userid );
      $offset++;
     } while (! $self->has_valid_userid );

     return $self;
}

=head3 add_extended_attribute

=cut

sub add_extended_attribute {
    my ($self, $attribute) = @_;
    $attribute->{borrowernumber} = $self->borrowernumber;
    return Koha::Patron::Attribute->new($attribute)->store;
}

=head3 extended_attributes

Return object of Koha::Patron::Attributes type with all attributes set for this patron

Or setter FIXME

=cut

sub extended_attributes {
    my ( $self, $attributes ) = @_;
    if ($attributes) {    # setter
        my $schema = $self->_result->result_source->schema;
        $schema->txn_do(
            sub {
                # Remove the existing one
                $self->extended_attributes->filter_by_branch_limitations->delete;

                # Insert the new ones
                for my $attribute (@$attributes) {
                    eval {
                        $self->_result->create_related('borrower_attributes', $attribute);
                    };
                    # FIXME We should:
                    # 1 - Raise an exception
                    # 2 - Execute in a transaction and don't save
                    #  or Insert anyway but display a message on the UI
                    warn $@ if $@;
                }
            }
        );
    }

    my $rs = $self->_result->borrower_attributes;
    # We call search to use the filters in Koha::Patron::Attributes->search
    return Koha::Patron::Attributes->_new_from_dbic($rs)->search;
}

=head3 lock

    Koha::Patrons->find($id)->lock({ expire => 1, remove => 1 });

    Lock and optionally expire a patron account.
    Remove holds and article requests if remove flag set.
    In order to distinguish from locking by entering a wrong password, let's
    call this an administrative lockout.

=cut

sub lock {
    my ( $self, $params ) = @_;
    $self->login_attempts( ADMINISTRATIVE_LOCKOUT );
    if( $params->{expire} ) {
        $self->dateexpiry( dt_from_string->subtract(days => 1) );
    }
    $self->store;
    if( $params->{remove} ) {
        $self->holds->delete;
        $self->article_requests->delete;
    }
    return $self;
}

=head3 anonymize

    Koha::Patrons->find($id)->anonymize;

    Anonymize or clear borrower fields. Fields in BorrowerMandatoryField
    are randomized, other personal data is cleared too.
    Patrons with issues are skipped.

=cut

sub anonymize {
    my ( $self ) = @_;
    if( $self->_result->issues->count ) {
        warn "Exiting anonymize: patron ".$self->borrowernumber." still has issues";
        return;
    }
    # Mandatory fields come from the corresponding pref, but email fields
    # are removed since scrambled email addresses only generate errors
    my $mandatory = { map { (lc $_, 1); } grep { !/email/ }
        split /\s*\|\s*/, C4::Context->preference('BorrowerMandatoryField') };
    $mandatory->{userid} = 1; # needed since sub store does not clear field
    my @columns = $self->_result->result_source->columns;
    @columns = grep { !/borrowernumber|branchcode|categorycode|^date|password|flags|updated_on|lastseen|lang|login_attempts|anonymized/ } @columns;
    push @columns, 'dateofbirth'; # add this date back in
    foreach my $col (@columns) {
        $self->_anonymize_column($col, $mandatory->{lc $col} );
    }
    $self->anonymized(1)->store;
}

sub _anonymize_column {
    my ( $self, $col, $mandatory ) = @_;
    my $col_info = $self->_result->result_source->column_info($col);
    my $type = $col_info->{data_type};
    my $nullable = $col_info->{is_nullable};
    my $val;
    if( $type =~ /char|text/ ) {
        $val = $mandatory
            ? Koha::Token->new->generate({ pattern => '\w{10}' })
            : $nullable
            ? undef
            : q{};
    } elsif( $type =~ /integer|int$|float|dec|double/ ) {
        $val = $nullable ? undef : 0;
    } elsif( $type =~ /date|time/ ) {
        $val = $nullable ? undef : dt_from_string;
    }
    $self->$col($val);
}

=head3 add_guarantor

    my @relationships = $patron->add_guarantor(
        {
            borrowernumber => $borrowernumber,
            relationships  => $relationship,
        }
    );

    Adds a new guarantor to a patron.

=cut

sub add_guarantor {
    my ( $self, $params ) = @_;

    my $guarantor_id = $params->{guarantor_id};
    my $relationship = $params->{relationship};

    return Koha::Patron::Relationship->new(
        {
            guarantee_id => $self->id,
            guarantor_id => $guarantor_id,
            relationship => $relationship
        }
    )->store();
}

=head3 get_extended_attribute

my $attribute_value = $patron->get_extended_attribute( $code );

Return the attribute for the code passed in parameter.

It not exist it returns undef

Note that this will not work for repeatable attribute types.

Maybe you certainly not want to use this method, it is actually only used for SHOW_BARCODE
(which should be a real patron's attribute (not extended)

=cut

sub get_extended_attribute {
    my ( $self, $code, $value ) = @_;
    my $rs = $self->_result->borrower_attributes;
    return unless $rs;
    my $attribute = $rs->search({ code => $code, ( $value ? ( attribute => $value ) : () ) });
    return unless $attribute->count;
    return $attribute->next;
}

=head3 to_api

    my $json = $patron->to_api;

Overloaded method that returns a JSON representation of the Koha::Patron object,
suitable for API output.

=cut

sub to_api {
    my ( $self, $params ) = @_;

    my $json_patron = $self->SUPER::to_api( $params );

    $json_patron->{restricted} = ( $self->is_debarred )
                                    ? Mojo::JSON->true
                                    : Mojo::JSON->false;

    return $json_patron;
}

=head3 to_api_mapping

This method returns the mapping for representing a Koha::Patron object
on the API.

=cut

sub to_api_mapping {
    return {
        borrowernotes       => 'staff_notes',
        borrowernumber      => 'patron_id',
        branchcode          => 'library_id',
        categorycode        => 'category_id',
        checkprevcheckout   => 'check_previous_checkout',
        contactfirstname    => undef,                     # Unused
        contactname         => undef,                     # Unused
        contactnote         => 'altaddress_notes',
        contacttitle        => undef,                     # Unused
        dateenrolled        => 'date_enrolled',
        dateexpiry          => 'expiry_date',
        dateofbirth         => 'date_of_birth',
        debarred            => undef,                     # replaced by 'restricted'
        debarredcomment     => undef,    # calculated, API consumers will use /restrictions instead
        emailpro            => 'secondary_email',
        flags               => undef,    # permissions manipulation handled in /permissions
        gonenoaddress       => 'incorrect_address',
        guarantorid         => 'guarantor_id',
        lastseen            => 'last_seen',
        lost                => 'patron_card_lost',
        opacnote            => 'opac_notes',
        othernames          => 'other_name',
        password            => undef,            # password manipulation handled in /password
        phonepro            => 'secondary_phone',
        relationship        => 'relationship_type',
        sex                 => 'gender',
        smsalertnumber      => 'sms_number',
        sort1               => 'statistics_1',
        sort2               => 'statistics_2',
        autorenew_checkouts => 'autorenew_checkouts',
        streetnumber        => 'street_number',
        streettype          => 'street_type',
        zipcode             => 'postal_code',
        B_address           => 'altaddress_address',
        B_address2          => 'altaddress_address2',
        B_city              => 'altaddress_city',
        B_country           => 'altaddress_country',
        B_email             => 'altaddress_email',
        B_phone             => 'altaddress_phone',
        B_state             => 'altaddress_state',
        B_streetnumber      => 'altaddress_street_number',
        B_streettype        => 'altaddress_street_type',
        B_zipcode           => 'altaddress_postal_code',
        altcontactaddress1  => 'altcontact_address',
        altcontactaddress2  => 'altcontact_address2',
        altcontactaddress3  => 'altcontact_city',
        altcontactcountry   => 'altcontact_country',
        altcontactfirstname => 'altcontact_firstname',
        altcontactphone     => 'altcontact_phone',
        altcontactsurname   => 'altcontact_surname',
        altcontactstate     => 'altcontact_state',
        altcontactzipcode   => 'altcontact_postal_code'
    };
}

=head2 Internal methods

=head3 _type

=cut

sub _type {
    return 'Borrower';
}

=head1 AUTHORS

Kyle M Hall <kyle@bywatersolutions.com>
Alex Sassmannshausen <alex.sassmannshausen@ptfs-europe.com>
Martin Renvoize <martin.renvoize@ptfs-europe.com>

=cut

1;