Supplier history view

lib/Pear/LocalLoop.pm

@@ -195,6 +195,7 @@ sub startup {
   $api_v1_org->post('/external/suppliers')->to('api-external#post_lcc_suppliers');
   $api_v1_org->post('/external/year_spend')->to('api-external#post_year_spend');
   $api_v1_org->post('/external/supplier_count')->to('api-external#post_supplier_count');
+  $api_v1_org->post('/external/supplier_history')->to('api-external#post_supplier_history');
 
   $api_v1_org->post('/pies')->to('api-v1-organisation-pies#index');
 

lib/Pear/LocalLoop/Controller/Api/External.pm

@@ -239,4 +239,141 @@ sub post_supplier_count {
   });
 }
 
+sub post_supplier_history {
+  my $c = shift;
+
+  my $user = $c->stash->{api_user};
+
+  # Temporary date lock for dev data
+  my $last = DateTime->new(
+    year  => 2019,
+    month => 4,
+    day   => 1
+  );
+  my $first = $last->clone->subtract(years => 1);
+  my $second = $last->clone->subtract(months => 6);
+  my $third = $last->clone->subtract(months => 3);
+
+  my $dtf = $c->schema->storage->datetime_parser;
+  my $year_rs = $c->schema->resultset('Transaction')->search(
+    {
+      'me.purchase_time' => {
+        -between => [
+          $dtf->format_datetime($first),
+          $dtf->format_datetime($last),
+        ],
+      },
+      'me.buyer_id'      => $user->entity->id,
+    },
+    {
+      join     => { seller => 'organisation' },
+      columns  => [
+        {
+          id          => 'me.seller_id',
+          name        => 'organisation.name',
+          count       => \"COUNT(*)",
+          total_spend => { sum => 'me.value' },
+        }
+      ],
+      group_by => 'me.seller_id',
+      order_by => { '-asc' => 'organisation.name' },
+    }
+  );
+  my $half_year_rs = $c->schema->resultset('Transaction')->search(
+    {
+      'me.purchase_time' => {
+        -between => [
+          $dtf->format_datetime($second),
+          $dtf->format_datetime($last),
+        ],
+      },
+      'me.buyer_id'      => $user->entity->id,
+    },
+    {
+      join     => { seller => 'organisation' },
+      columns  => [
+        {
+          id          => 'me.seller_id',
+          name        => 'organisation.name',
+          count       => \"COUNT(*)",
+          total_spend => { sum => 'me.value' },
+        }
+      ],
+      group_by => 'me.seller_id',
+      order_by => { '-asc' => 'organisation.name' },
+    }
+  );
+  my $quarter_year_rs = $c->schema->resultset('Transaction')->search(
+    {
+      'me.purchase_time' => {
+        -between => [
+          $dtf->format_datetime($third),
+          $dtf->format_datetime($last),
+        ],
+      },
+      'me.buyer_id'      => $user->entity->id,
+    },
+    {
+      join     => { seller => 'organisation' },
+      columns  => [
+        {
+          id          => 'me.seller_id',
+          name        => 'organisation.name',
+          count       => \"COUNT(*)",
+          total_spend => { sum => 'me.value' },
+        }
+      ],
+      group_by => 'me.seller_id',
+      order_by => { '-asc' => 'organisation.name' },
+    }
+  );
+
+  my %data;
+  for my $row ($year_rs->all) {
+    $data{$row->get_column('id')} = {
+      id            => $row->get_column('id'),
+      name          => $row->get_column('name'),
+      quarter_count => 0,
+      quarter_total => 0,
+      half_count    => 0,
+      half_total    => 0,
+      year_count    => $row->get_column('count'),
+      year_total    => $row->get_column('total_spend'),
+    };
+  }
+
+  for my $row ($half_year_rs->all) {
+    $data{$row->get_column('id')} = {
+      id            => $row->get_column('id'),
+      name          => $row->get_column('name'),
+      quarter_count => 0,
+      quarter_total => 0,
+      half_count    => $row->get_column('count'),
+      half_total    => $row->get_column('total_spend'),
+      year_count    => 0,
+      year_total    => 0,
+      %{$data{$row->get_column('id')}},
+    };
+  }
+
+  for my $row ($quarter_year_rs->all) {
+    $data{$row->get_column('id')} = {
+      id            => $row->get_column('id'),
+      name          => $row->get_column('name'),
+      quarter_count => $row->get_column('count'),
+      quarter_total => $row->get_column('total_spend'),
+      half_count    => 0,
+      half_total    => 0,
+      year_count    => 0,
+      year_total    => 0,
+      %{$data{$row->get_column('id')}},
+    };
+  }
+
+  return $c->render(json => {
+    success => Mojo::JSON->true,
+    data    => [ values %data ],
+  });
+}
+
 1;