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package LIMS::Controller::Storage;

=begin # FluidX XTR-96 plate reader:
requires xtr_96_addr ip:port in settings file to provide access

System settings:
    Winsock: Add <CRLF> = OFF; Enable Winsock = ON; Port = 2001
    Barcode: Integral reader (ensure Matrix ID auto orientate off)

Results settings:
    Header information: Single Field; Label: Rack Identifier (checked)
    Results Format: Tube IDs and TubeRack Coords
    Spacing of results: commas only
    Separation of records: same line
    Grouping of records: by Column
    Results capture: Require RackID with tube readings
=cut

use LIMS::ControllerClass; # inherits LIMS::Base and provides LIMS::Local::Debug::p
with 'LIMS::Controller::Roles::RecordHandler';
__PACKAGE__->meta->make_immutable(inline_constructor => 0);

use Net::Telnet;
use Data::Dumper;

# ------------------------------------------------------------------------------
# default() should never be called direct - redirect to start page:
sub default : StartRunmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);
    return $self->redirect( $self->query->url );
}

# ------------------------------------------------------------------------------
sub load : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);
    my $errs = shift; $self->stash( errs => $errs );

    my $request_id = $self->param('id')
    || return $self->error('no id passed to ' . $self->get_current_runmode);

	# get request data:
    my $request_data = $self->model('Request')->get_single_request($request_id);
	# get existing storage data:
	my $storage = $self->model('Storage')->get_request_storage($request_id);
    # vials in storage NOT signed out:
    my @available = map $_->vialId, grep ! $_->signed_out, @$storage;
	# get specimen map for request:
    my $specimen_map = $self->specimen_map([ $request_id ]); # warn Dumper $specimen_map;

    my %tt_params = (
        specimen_map => $specimen_map,
        request      => $request_data,
        available    => \@available,
		storage      => $storage,
    );

	{ # menu options:
        my $opts = $self->_get_menu_options();
        $tt_params{menu_options} = $opts;
    }
    # yaml config to allow new tests to be requested (eg xNA extraction):
    if ( my $yml = $self->get_yaml_file('storage') ) { # p $yml;
        # only allowed 1 lab section as method for result_update expects section id:
        my ($section) = keys %$yml; # p $section;

        my $o = $self->model('LabTest')->get_lab_tests; # warn Dumper $_ for @$o;

        { # lab tests:
            my %h = map +($_->field_label => $_->id),
                grep $_->lab_section->section_name eq $section, @$o; # p %h;
            # take hash slice:
            my $lab_tests = $yml->{$section}; # p $lab_tests;
            my %tests = map +($_ => $h{$_}), @$lab_tests; # p %tests;
            $tt_params{lab_tests} = \%tests;
        }
        { # lab section details:
            my %h =
                map +($_->lab_section->section_name => $_->lab_section_id), @$o;
            my %lab_section = ( name => $section, id => $h{$section} ); # p %lab_section;
            $tt_params{lab_section} = \%lab_section;
        }
        { # request-lab-test data for $section:
            my %h = ( section_name => $section, request_id => $request_id );
            my $o = $self->model('LabTest')
                ->get_request_lab_tests_for_section(\%h);
            my %map = map +(
                $_->lab_test->field_label => $_->status->description
            ), @$o; # p %map;
            $tt_params{request_lab_tests} = \%map; # p $request_lab_test;
        }
        { # record status (RecordHandler::is_record_complete):
            my $is_locked = $self->is_record_complete($request_data); # p $is_locked;
            $tt_params{is_locked} = $is_locked; # will be undef if status != complete
        }
    }

    $self->tt_params(%tt_params);
	return $self->render_view($self->tt_template_name, $errs);
}

# ------------------------------------------------------------------------------
sub input : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);
    my $errs = shift;

    my $request_id = $self->param('id')
    || return $self->error('no id passed to ' . $self->get_current_runmode);

    my $dfv = $self->check_rm('load', $self->validate('storage_input') )
	|| return $self->dfv_error_page;

    my $params = $dfv->valid; # print p $params;
    $params->{request_id} = $request_id;

	my $rtn = $self->model('Storage')->input_storage($params);
	return $self->error( $rtn ) if $rtn;

    # insert flash message
	$self->flash( info => $self->messages('action')->{create_success} );
    return $self->redirect( $self->query->url . '/storage/=/' . $request_id );
}

# ------------------------------------------------------------------------------
sub output : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);
    my $errs = shift;

    my $request_id = $self->param('id')
    || return $self->error('no id passed to ' . $self->get_current_runmode);

    my $dfv = $self->check_rm('load', $self->validate('storage_output') )
	|| return $self->dfv_error_page;

    my $params = $dfv->valid; # warn Dumper $params;
    $params->{request_id} = $request_id;

    my $rtn = $self->model('Storage')->output_storage($params); # 'OK' or href error

    if (ref $rtn eq 'HASH') { # will be error
        return $self->forward('load', $rtn);
    }

    # insert flash message:
    $self->flash( info => $self->messages('action')->{edit_success} );
    return $self->redirect( $self->query->url . '/storage/=/' . $request_id );
}

# ------------------------------------------------------------------------------
sub edit : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);
    my $errs = shift; $self->stash( errs => $errs );

    my $vial_id = $self->param('id')
    || return $self->error('no id passed to ' . $self->get_current_runmode);

    my $request_id = $self->param('Id')
    || return $self->error('no Id passed to ' . $self->get_current_runmode);

    my $request = $self->model('Request')->get_single_request($request_id);
    $self->tt_params( request => $request );

	{ # menu options:
        my $opts = $self->_get_menu_options();
        $self->tt_params( menu_options => $opts );
    }

	my $data = $self->model('Storage')->get_storage_vial($vial_id);
    $self->tt_params( data => $data );

    return $self->tt_process($errs);
}

# ------------------------------------------------------------------------------
sub delete : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);

    my $vial_id = $self->param('id')
    || return $self->error('no vialId passed to ' . $self->get_current_runmode);

    my $request_id = $self->param('Id')
    || return $self->error('no request_id passed to ' . $self->get_current_runmode);

    # need confirmation to delete record (scanned vialId matches id of vial selected):
    if ( my $vialId = $self->query->param('vialId') ) {
        my $messages = $self->messages('storage');

        unless ( $vial_id eq $vialId ) { # warn 'here';
            return $self->tt_process({ error => $messages->{vial_mismatch} });
        }
        my $rtn = $self->model('Storage')->delete_storage_vial($vial_id);
        return $self->error($rtn) if $rtn;

        # set flash success & redirect:
        $self->flash( info => $messages->{delete_success} );
        $self->redirect( $self->query->url . '/storage/=/' . $request_id );
    }
    else { # just load error for confirmation:
        $self->tt_params( vial_id => $vial_id );
        return $self->tt_process();
    }
}

# ------------------------------------------------------------------------------
sub update_storage_vial : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);
    my $errs = shift;
    # capture param 'Id' - 'id' = vialId in case validation failure -> edit()
    my $request_id = $self->param('Id')
    || return $self->error('no request_id passed to ' . $self->get_current_runmode);

    my $dfv = $self->check_rm('edit', $self->validate('storage_update') )
	|| return $self->dfv_error_page; # warn Dumper $dfv;

    my $params = $dfv->valid; # p $params;
    $params->{request_id} = $request_id;

	my $rtn = $self->model('Storage')->update_storage_vial($params);
	return $self->error( $rtn ) if $rtn;

    # insert flash message
	$self->flash( info => $self->messages('action')->{edit_success} );
    return $self->redirect( $self->query->url . '/storage/=/' . $request_id );
}

# ------------------------------------------------------------------------------
sub read_xtr_96 : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);

	my $cfg = $self->cfg('settings'); # p $cfg->{xtr_96_addr};

	# connection info, or return:
	my ($host, $port) = split ':', $cfg->{xtr_96_addr}; # p [$host, $port];
	return $self->error('require host & port') unless ($host && $port);

	# request to commence plate scan:
	if ( $self->query->param('scan') ) {
        my $rtn_url = $self->query->url . '/storage/read_xtr_96';
        my $msgs    = $self->messages('storage');

		# get data or return (any failure will be in flash msg):
		my $xtr_96 = $self->_get_xtr_96_data($host, $port) # hashref of plate_data & plateId
		|| return $self->redirect( $rtn_url ); # p($xtr_96);

		{ # get storage_rack & request_storage db table data (if exists):
			my $plate_data = $xtr_96->{plate_data}; # p($plate_data);
			my $plateId    = $xtr_96->{plateId};

            unless ($plate_data) {
                $self->flash(error => $msgs->{no_plate_data});
                return $self->redirect( $rtn_url );
            }
            unless ($plateId) {
                $self->flash(error => $msgs->{no_plate_id});
                return $self->redirect( $rtn_url );
            }
			my $storage_rack = $self->model('Storage')->get_storage_rack($plateId); # hashref

            my @locations = keys %{ $plate_data }; # p(@locations); p($storage_rack);
            my @vial_ids  = values %{ $plate_data }; # p(@vial_ids);

            # need map of vialId => location:
            my %location_map; @location_map{@vial_ids} = @locations;

			my %args = $storage_rack # if exists, use rack id, otherwise vial_id's:
				? ( rack_id  => $storage_rack->{id} ) # get all vials from rack
				: ( vial_ids => \@vial_ids ); # get all vials matching input

			my $o = $self->model('Storage')->get_rack_contents(\%args);
			# need hash of vialId's from request_storage where signed_out is null:
			my %rack_data = map { $_->vialId => $location_map{$_->vialId} }
                grep { ! $_->signed_out } @$o; # p(%rack_data);

			# do we have any vials in rack which do NOT exist in storage:
			my $have_missing = grep { ! $rack_data{$_} }
                grep $_ ne 'No Tube', @vial_ids; # eg unrecognised vial, or 'No Read'

            my $have_empty = grep $_ eq 'No Tube', @vial_ids; # just highlight on view

			my %h = (
				storage_rack => $storage_rack,
				have_missing => $have_missing,
                have_empty   => $have_empty,
				rack_data    => \%rack_data,
			); # p %h;
			$xtr_96->{storage} = \%h;
		}

		$self->tt_params( data => $xtr_96 );

		# store in session for retrieval after 'import':
		$self->session->param( _xtr_96_data => $xtr_96 );
	}
    else { # ensure only PC attached to xtr_96 can activate scan:
        my ($ip, $port) = split ':', $self->cfg('settings')->{xtr_96_addr};
        my $ok = $ENV{DEVEL_SERVER} || ( $ENV{REMOTE_ADDR} eq $ip );
        $self->tt_params(
            remote_addr => $ENV{REMOTE_ADDR},
            xtr_96_addr => $ip,
            can_scan    => $ok,
        );
    }
	return $self->tt_process();
}

# ------------------------------------------------------------------------------
sub import_xtr_96_data : Runmode {
    my $self = shift; $self->_debug_path($self->get_current_runmode);

	my $xtr_96_data = $self->session->dataref->{_xtr_96_data}
	|| return $self->error( 'no xtr-96 data retrieved from session' ); # p($xtr_96_data);

	# get storage_rack data (if exists):
	my $storage_data = $xtr_96_data->{storage}; # p($storage_data);

    # check no missing data (shouldn't happen - should not have been able to submit):
    if ( $storage_data->{have_missing} ) {
        my $url = $self->query->url . '/storage/read_xtr_96?scan=1';
        return $self->redirect( $url );
    }

    my ($result, $plate_id);

    my $vars = $self->query->Vars(); # warn Dumper $vars;

    # void plate - remove vial_location & plateId from vials:
    if ( $vars->{void_plate} ) {
        my $plateId = $vars->{_plateId}; # distinct from $plate_id
        unless ( $vars->{confirm_void_plate} ) { # need confirmation
            return $self->tt_process('storage/void_plate.tt');
        }
        my $rtn = $self->model('Storage')->void_plate($plateId);
        if ($rtn) { # error
            return $self->error($rtn);
        }
        else {
            my $msg = $self->messages('storage')->{void_success}; # sprintf:
            $self->flash( info => sprintf  $msg, $plateId );
            return $self->redirect( $self->query->url . '/storage/read_xtr_96');
        }
    }
    elsif ( $vars->{import} ) { # new import:
        $plate_id = $xtr_96_data->{plateId} # eg SA00098711
        || return $self->error( 'no plate id retrieved from session' ); # p($plate_id);

        # insert new entry in storage_racks, returns storage_racks.id:
        my $rack_id = $self->model('Storage')->new_storage_rack($plate_id);

        # $rack_data: href vialId => location
        my $rack_data = $storage_data->{rack_data}; # p($rack_data);
        my %h = ( rack_id => $rack_id, plate => $rack_data ); # p(%args);

        $result = $self->model('Storage')->update_storage_rack(\%h); # p($result);
        $self->tt_params( action => 'scanned in' );
    }
    # if export data, sign out all vials:
    elsif ( $vars->{export} ) { # warn Dumper $rack;
        my $rack = $storage_data->{storage_rack}; # warn Dumper $rack;

        $plate_id = $rack->{plateId};
        return $self->error( "plateId $plate_id is not active" )
            unless $rack->{is_active} eq 'yes'; # should never happen

        my $rack_data = $storage_data->{rack_data};
        my @vial_ids = keys %{ $rack_data }; # warn Dumper \@vial_ids;

        # sign out all vials in rack:
        my %h = (
            vial_id => \@vial_ids,
            rack_id => $rack->{id},
        );
        $result = $self->model('Storage')->sign_out_storage_rack(\%h); # p($result);
        $self->tt_params( action => 'signed out' );
    }
    else { # just set $result to msg for return below:
        $result = 'unknown action (not one of: import, export or void plate)';
    }
    # $result should be hashref, or err str:
    return $self->error($result) unless ref $result eq 'HASH';

    { # get request data from $result:
        my @request_ids = keys %{ $result->{requests} }; # requests = href of req.ids
        my $data = $self->model('Request')->get_requests(\@request_ids); # arrayref
        # replace $result->{requests}{request_id} index count with request table row:
        $result->{requests}->{$_->id} = $_->as_tree for @$data;
    }
    # add plate ID:
    $result->{plateId} = $plate_id;
    # add original scanned plate data from session:
    $result->{scan_data} = $xtr_96_data->{plate_data};

    return $self->tt_process({ data => $result });
}

# ------------------------------------------------------------------------------
sub _get_xtr_96_data {
	my $self = shift; $self->_debug_path();
	my ($host, $port) = @_;

	return _dummy_data() if $ENV{SERVER_PORT} == 8000; # uncomment to use test data

	my @args = (
		Timeout	=> 15,
		Errmode	=> 'return', # don't die (default)
#		Input_Log 	=> './xtr-96.log', # uncomment to debug
	);
	my $telnet = Net::Telnet->new(@args);

	my @host = ( Host => $host, Port => $port );
	unless ( $telnet->open(@host) ) { # returns 1 on success, 0 on failure:
		$self->flash( error => $telnet->errmsg ); # failure msg in errmsg()
		return 0;
	}
	$telnet->cmd('get');

	# direct manipulation of buffer easier than documented methods!!
	my $ref = $telnet->buffer; # p $ref;
	$telnet->close;

	my ($header, $body) = split "\n", ${$ref}; # p [$header, $body];

	my ($plateId) = $header =~ /Rack Identifier = ([A-Z0-9]+)/;
#	my %plate_data = ( $str =~ /^([A-H][0-9]{2})\,\s?(.+?)$/mg ); # if $str is list format
	my %data = split /,\s?/, $body; # p %data;

	my %h = (
		plate_data => \%data,
		plateId	   => $plateId,
	); # p %h;

	return \%h;
}

sub _get_menu_options {
    my $self = shift;
    my $yaml = $self->get_yaml_file('menu_options'); # p $yaml;
    my $opts = $yaml->{storage_options};
    return $opts;
}

1;

#===============================================================================
=begin # to clear request_storage & storage_racks tables:
    UPDATE request_storage SET rack_id = NULL;
    UPDATE request_storage SET vial_location = NULL;
    UPDATE request_storage SET signed_out = NULL;
    SET FOREIGN_KEY_CHECKS=0;
    TRUNCATE TABLE storage_racks;
    SET FOREIGN_KEY_CHECKS=1;
=cut
sub _dummy_data { # dummy data to spare plate reader ...
	my $plateId = 'SA00084423'; # SA00098711
=begin to get more:
    select vialId, vial_location
    from request_storage
    where vial_location is not null and signed_out is null
    group by vial_location
    order by vial_location

    select vial_location, vialId
    from request_storage rs
        join storage_racks sr on rs.rack_id = sr.id
    where sr.plateId = 'SA00084423'
    order by vial_location
=cut
	my %data = (
        'A01' => '1020850304',
        'A02' => '1020850312',
        'A03' => '1020850320',
        'A04' => '1020850328',
        'A05' => '1020850336',
        'A06' => '1020850344',
        'A07' => '1020850352',
        'A08' => '1020850360',
        'A09' => '1020850368',
        'A10' => '1020850321',
        'A11' => '1020850384',
        'A12' => '1020850392',
        'B01' => '1020850305',
        'B02' => '1020850313',
        'B03' => '1020850348',
        'B04' => '1020850383',
        'B05' => '1020850391',
        'B06' => '1020850345',
        'B07' => '1020850353',
        'B08' => '1020850361',
        'B09' => '1020850369',
        'B10' => '1020850367',
        'B11' => '1020850385',
        'B12' => '1020850393',
        'C01' => '1020850306',
        'C02' => '1020850314',
        'C03' => '1020850322',
        'C04' => '1020850359',
        'C05' => '1020850338',
        'C06' => '1020850346',
        'C07' => '1020850354',
        'C08' => '1020850362',
        'C09' => '1020850370',
        'C10' => '1020850378',
        'C11' => '1020850386',
        'C12' => '1020850394',
        'D01' => '1020850319',
        'D02' => '1020850315',
        'D03' => '1020850323',
        'D04' => '1020850331',
        'D05' => '1020850355',
        'D06' => '1020850347',
        'D07' => '1020850397',
        'D08' => '1020850398',
        'D09' => '1020850371',
        'D10' => '1020850379',
        'D11' => '1020850387',
        'D12' => '1020850395',
        'E01' => '1020850308',
        'E02' => '1020850316',
        'E03' => '1020850324',
        'E04' => '1020850332',
        'E05' => '1020850340',
        'E06' => '1020850311',
        'E07' => '1020850356',
        'E08' => '1020850364',
        'E09' => '1020850372',
        'E10' => '1020850380',
        'E11' => '1020850388',
        'E12' => '1020850382',
        'F01' => '1020850390',
        'F02' => '1020850317',
        'F03' => '1020850325',
        'F04' => '1020850358',
        'F05' => '1020850333',
        'F06' => '1020850357',
        'F07' => '1020850374',
        'F08' => '1020850365',
        'F09' => '1020850373',
        'F10' => '1020850381',
        'F11' => '1020850406',
        'F12' => '1020850414',
        'G01' => '1020850422',
        'G02' => '1020850405',
        'G03' => '1020850413',
        'G04' => '1020850421',
        'G05' => '1020850429',
        'G06' => '1020850437',
        'G07' => '1020850445',
        'G08' => '1020850453',
        'G09' => '1020850461',
        'G10' => '1020850469',
        'G11' => '1020850477',
        'G12' => '1020850485',
        'H01' => '1020850493',
        'H02' => '1020850404',
        'H03' => '1020850412',
        'H04' => '1020850420',
        'H05' => '1020850428',
        'H06' => '1020850436',
        'H07' => '1020850444',
        'H08' => '1020850452',
        'H09' => '1020850460',
        'H10' => '1020850468',
        'H11' => '1020850476',
        'H12' => '1020850484',
	); # warn Dumper \%data;

	return { # same format as xtr-96 output:
		plate_data => \%data,
		plateId	   => $plateId,
	}
}