feat: add boosting to context based search

src/storage/elasticsearch/query.ts

@@ -14,9 +14,11 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 import {
-  SCBackendConfigurationSearchBoosting,
+  SCBackendConfigurationSearchBoostingContext,
+  SCBackendConfigurationSearchBoostingType,
   SCConfigFile,
   SCSearchBooleanFilter,
+  SCSearchContext,
   SCSearchFilter,
   SCSearchQuery,
   SCSearchSort,
@@ -147,15 +149,37 @@ export function buildFilter(filter: SCSearchFilter): ESTermFilter | ESGeoDistanc
 
 /**
  * Builds scorings functions from boosting config
- * @param boosting
- * @returns
+ * @param boostings Backend boosting configuration for contexts and types
+ * @param context The context of the app from where the search was initiated
  */
-export function buildFunctions(boosting: SCBackendConfigurationSearchBoosting[]): ESFunctionScoreQueryFunction[] {
+function buildFunctions(
+  boostings: SCBackendConfigurationSearchBoostingContext,
+  context: SCSearchContext | undefined,
+): ESFunctionScoreQueryFunction[] {
 
+  // default context
+  let functions: ESFunctionScoreQueryFunction[] =
+    buildFunctionsForBoostingTypes(boostings['default' as SCSearchContext]);
+
+  if (typeof context !== 'undefined' && context !== 'default') {
+    // specific context provided, extend default context with additional boosts
+    functions = functions.concat(buildFunctionsForBoostingTypes(boostings[context]));
+  }
+
+  return functions;
+}
+
+/**
+ * Creates boost functions for all type boost configurations
+ * 
+ * @param boostingTypes Array of type boosting configurations
+ */
+function buildFunctionsForBoostingTypes(
+  boostingTypes: SCBackendConfigurationSearchBoostingType[],
+): ESFunctionScoreQueryFunction[] {
   const functions: ESFunctionScoreQueryFunction[] = [];
 
-  // add a good scoring subset from config file
-  boosting.forEach((boostingForOneSCType) => {
+  boostingTypes.forEach((boostingForOneSCType) => {
     const typeFilter: ESTypeFilter = {
       type: {
         value: boostingForOneSCType.type,
@@ -305,7 +329,7 @@ export function buildQuery(
 
   const functionScoreQuery: ESFunctionScoreQuery = {
     function_score: {
-      functions: buildFunctions(defaultConfig.internal.boostings),
+      functions: buildFunctions(defaultConfig.internal.boostings, params.context),
       query: {
         bool: {
           minimum_should_match: 0, // if we have no should, nothing can match