version 8.0-3.0 - update required

Added amount field to case fee, total fee to case, and code to calculate the total

modules/opencase_cases/opencase_cases.module

@@ -1,4 +1,5 @@
 <?php
+declare(strict_types = 1);
 
 /**
  * @file
@@ -64,6 +65,51 @@ function opencase_cases_theme() {
   ];
 }
 
+/**
+ * @return Drupal\opencase_cases\entity\OCCaseFee[]
+ */
+function opencase_cases_get_case_fees(Drupal\opencase_cases\entity\OCCase $case): array {
+  $query = \Drupal::entityQuery('oc_case_fee')
+    ->condition('oc_case.target_id', $case->id());
+  $case_fee_ids =  $query->execute();
+  $case_fees = [];
+  foreach($case_fee_ids as $id) {
+    $case_fees[] = Drupal\opencase_cases\entity\OCCaseFee::load($id);
+  }
+  return $case_fees;
+}
+
+function opencase_cases_get_amount(Drupal\opencase_cases\entity\OCCaseFee $case_fee): string {
+  return $case_fee->amount->first()->value;
+}
+
+function opencase_cases_get_case(Drupal\opencase_cases\entity\OCCaseFee $case_fee): Drupal\opencase_cases\entity\OCCase {
+  return $case_fee->oc_case->referencedEntities()[0];
+}
+
+function opencase_cases_update_total_fee_for_case_belonging_to_case_fee(Drupal\opencase_cases\entity\OCCaseFee $case_fee): void {
+  $total = 0;
+  $case = opencase_cases_get_case($case_fee);
+  $case_fees = opencase_cases_get_case_fees($case);
+  foreach($case_fees as $case_fee) {
+    $total += opencase_cases_get_amount($case_fee);
+  }
+  $case->set('total_fee', $total);  
+  $case->save();
+}
+
+function opencase_cases_oc_case_fee_update(Drupal\opencase_cases\entity\OCCaseFee $case_fee): void {
+  opencase_cases_update_total_fee_for_case_belonging_to_case_fee($case_fee);
+}
+
+function opencase_cases_oc_case_fee_insert(Drupal\opencase_cases\entity\OCCaseFee $case_fee): void {
+  opencase_cases_update_total_fee_for_case_belonging_to_case_fee($case_fee);
+}
+
+function opencase_cases_oc_case_fee_delete(Drupal\opencase_cases\entity\OCCaseFee $case_fee): void {
+  opencase_cases_update_total_fee_for_case_belonging_to_case_fee($case_fee);
+}
+
 function opencase_cases_entity_base_field_info($entity_type) {
   $fields = array();