<% include( 'elements/browse.html',
     'title'          => 'Rating Regions and Prefixes',
     'name_singular'  => 'region', #'rate region',
     'menubar'        => [ 'Rate plans' => $p.'browse/rate.cgi' ],
     'html_init'      => $html_init,
     'html_posttotal' => $html_posttotal,
     'query'          => {
                           'select'    => $select,
                           'table'     => 'rate_region',
                           'addl_from' => $join,
                           'extra_sql' => $extra_sql, 
                           'order_by'  => 'ORDER BY LOWER(regionname)',
                         },
     'count_query'    => $count_query,
     'header'         => \@header,
     'fields'         => \@fields,
     'links'          => \@links,
     'align'          => \@align,
     'xls_format'     => \@xls_format,
   )
%>
<%once>

my $edit_url = $p.'edit/rate_region.cgi';

my $link = [ "$edit_url?regionnum=", 'regionnum' ];

my $html_init =
  'Regions and prefixes for VoIP and call billing.<BR><BR>'.
  qq(<A HREF="$edit_url"><I>Add a new region</I></A><BR><BR>);

#not quite right for the shouldn't-happen multiple countrycode per region case
my $select = 'rate_region.*, ';
my $join = '';
my $group_sql = '';
if ( driver_name =~ /^Pg/ ) {
  my $fromwhere = 'FROM rate_prefix'.
                  ' WHERE rate_prefix.regionnum = rate_region.regionnum';
  my $prefix_sql = " CASE WHEN nxx IS NULL OR nxx = '' ".
                   "   THEN npa ".
                   "   ELSE npa || '-' || nxx ".
                   " END";
  my $prefixes_sql = "SELECT $prefix_sql $fromwhere AND npa IS NOT NULL ORDER BY npa";
  $select .= "( SELECT '+'||countrycode $fromwhere LIMIT 1 ) AS ccode, 
              ARRAY_TO_STRING( ARRAY($prefixes_sql), ', ' ) AS prefixes";
} elsif ( driver_name =~ /^mysql/i ) {
  $join = 'LEFT JOIN rate_prefix USING ( regionnum )';
  $select .= "'+'||GROUP_CONCAT( DISTINCT countrycode ) AS ccode,
              GROUP_CONCAT( npa ORDER BY npa SEPARATOR ', ' ) AS prefixes ";
  $group_sql = 'GROUP BY regionnum, regionname';
} else {
  die 'unknown database '. driver_name;
}

my $base_count_sql = 'SELECT COUNT(*) FROM rate_region';

tie my %granularity, 'Tie::IxHash', FS::rate_detail::granularities();

</%once>
<%init>

die "access denied"
  unless $FS::CurrentUser::CurrentUser->access_right('Configuration');

my $sub_prefixes = sub {
  my $region = shift;
  $region->prefixes .
  ($region->exact_match ? ' <I>(exact match only)</I>' : '');
};

my @header     = ( '#',         'Region',  'Country code', 'Prefixes' );
my @fields     = ( 'regionnum', 'regionname',   'ccode',   $sub_prefixes );
my @links      = ( ($link) x 4 );
my @align      = ( 'right', 'left', 'right', 'left' );
my @xls_format = ( ({ locked=>1, bg_color=>22 }) x 4 );

$cgi->param('dummy', 1);
my $countrycode_filter_change =
  "window.location = '".
  $cgi->self_url. ";countrycode=' + this.options[this.selectedIndex].value;";

my $countrycode = '';
my $extra_sql = $group_sql;
my $count_query = $base_count_sql;
if ( $cgi->param('countrycode') =~ /^(\d+)$/ ) {
  $countrycode = $1;
  my $ccode_sql = '( SELECT countrycode FROM rate_prefix
                       WHERE rate_prefix.regionnum = rate_region.regionnum
                       LIMIT 1
                   )';
  $extra_sql = " WHERE $ccode_sql = '$1' $extra_sql";
  $count_query .= " WHERE $ccode_sql = '$1'";
}

sub _rate_detail_factory {
  my( $rate, $field ) = @_;
  return sub {
    my $rate_detail = $rate->dest_detail(shift)
                      || new FS::rate_detail { 'min_included'    => 0,
                                               'min_charge'      => 0,
                                               'min_cost'        => 0,
                                               'sec_granularity' => 0,
                                             };
    my $value = $rate_detail->$field();
    $field eq 'sec_granularity' ? $granularity{$value} : $value;
  };
}

if ( $cgi->param('show_rates') ) {
  foreach my $rate ( qsearch('rate', {}) ) {

    my $label = $rate->ratenum.': '. $rate->ratename;
    push @header, "$label: Included minutes/calls",
                  "$label: Charge per minute/call",
                  "$label: Granularity",
                  "$label: Usage class";

    #closure me harder
    push @fields, _rate_detail_factory($rate, 'min_included'),
                  _rate_detail_factory($rate, 'min_charge'),
                  _rate_detail_factory($rate, 'sec_granularity'),
                  _rate_detail_factory($rate, 'classnum');

    push @links, ( ('') x 4 );
    push @xls_format, ( ({}) x 4 );

  }

}

my $html_posttotal = 
  '(show country code: '.
  qq(<SELECT NAME="countrycode" onChange="$countrycode_filter_change">).
  qq(<OPTION VALUE="">(all)).
  join("\n", map { qq(<OPTION VALUE="$_").
                     ($_ eq $countrycode ? ' SELECTED' : '' ).
                     ">$_",
                 }
                 FS::rate_prefix->all_countrycodes
      ).
  '</SELECT>)';

</%init>