changing pie format (broken)

lib/Pear/LocalLoop/Controller/Api/V1/Customer/Pies.pm

@@ -6,6 +6,8 @@ sub index {
 
   my $entity = $c->stash->{api_user}->entity;
 
+  my $data = { local_all => {}, categories => {}, essentials => {} };
+
   my $purchase_rs = $entity->purchases;
   my $local_org_local_purchase = $purchase_rs->search({
     "me.distance" => { '<', 20000 },
@@ -43,17 +45,67 @@ sub index {
   }
   );
 
-  my $data = {
+  $data->{local_all} = {
     'Local shop local purchaser' => $local_org_local_purchase->count,
     'Local shop non-local purchaser' => $local_org_non_local_purchase->count,
     'Non-local shop local purchaser' => $non_local_org_local_purchase->count,
     'Non-local shop non-local purchaser' => $non_local_org_non_local_purchase->count,
   };
 
+  my $duration = DateTime::Duration->new( days => 28 );
+  my $end = DateTime->today;
+  my $start = $end->clone->subtract_duration( $duration );
+
+  my $dtf = $c->schema->storage->datetime_parser;
+  my $driver = $c->schema->storage->dbh->{Driver}->{Name};
+  my $month_transaction_category_rs = $c->schema->resultset('ViewQuantisedTransactionCategory' . $driver)->search(
+    {
+      purchase_time => {
+        -between => [
+          $dtf->format_datetime($start),
+          $dtf->format_datetime($end),
+        ],
+      },
+      buyer_id => $entity->id,
+    },
+    {
+      columns => [
+        {
+          quantised        => 'quantised_weeks',
+          value            => { sum => 'value' },
+          category_id      => 'category_id',
+          essential        => 'essential',
+        },
+      ],
+      group_by => [ qw/ category_id quantised_weeks essential / ],
+    }
+  );
+
+  my $category_list = $c->schema->resultset('Category')->as_hash;
+
+  for my $cat_trans ( $month_transaction_category_rs->all ) {
+    my $quantised = $c->db_datetime_parser->parse_datetime($cat_trans->get_column('quantised'));
+    my $days = $c->format_iso_date( $quantised ) || 0;
+    my $category = $cat_trans->get_column('category_id') || 0;
+    my $value = ($cat_trans->get_column('value') || 0) / 100000;
+    $data->{categories}->{$days}->{$category_list->{$category}} += $value;
+    next unless $cat_trans->get_column('essential');
+    $data->{essentials}->{$days}->{value} += $value;
+  }
+
+  for my $day ( keys %{ $data->{categories} } ) {
+    my @days = ( map{ {
+      days => $day,
+      value => $data->{categories}->{$day}->{$_},
+      category => $_,
+    } } keys %{ $data->{categories}->{$day} } );
+    $data->{categories}->{$day} = [ sort { $b->{value} <=> $a->{value} } @days ];
+  }
+
   return $c->render(
     json => {
       success => Mojo::JSON->true,
-      pie => $data,
+      data => $data,
     }
   );