[Added] Nightly filling up of fresh data (and swapping), Startup filling of DB, sessionToken for bulk gathering

backend/src/main/java/com/ninjaws/quiz/services/ApiService.java

@@ -12,6 +12,7 @@ import com.ninjaws.quiz.models.ApiResponse;
 import com.ninjaws.quiz.models.CategoryResponse;
 import com.ninjaws.quiz.models.QuizSettings;
 import com.ninjaws.quiz.models.Request;
+import com.ninjaws.quiz.models.SessionTokenDTO;
 
 import jakarta.validation.Valid;
 
@@ -28,6 +29,7 @@ public class ApiService {
     private static final System.Logger logger = System.getLogger(ApiService.class.getName());
 
     private final String apiUrl = "https://opentdb.com";
+    private String sessionToken;
 
     public ApiService() {
     }
@@ -55,21 +57,42 @@ public class ApiService {
      * Store them in the DataService
      */
     public void collectBulk() {
-        // TODO: Make this happen only once, when a new database is generated
-        getCategories();
-        String url = apiUrl + "/api.php?amount=50";
+        String tokenStr = sessionToken == null ? "" : "&token="+sessionToken;
+        String url = apiUrl + "/api.php?amount=50" + tokenStr;
         try {
             ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
             String json = response.getBody();
             ApiResponse apiResponse = cleanerService.extractApiResponse(json);
             responseHandler.handleResponse(apiResponse);
             
+            /** 
+             * A bit dirty, but otherwise it causes circular dependencies 
+             * Makes sure the categories are refreshed after finishing to replace the questions, to make sure the ids match
+             * And resets the sessionToken, it will be remade during the next REFRESH
+            */
+            if(apiResponse.getResponseCode() == 4) {
+                getCategories();
+                sessionToken = null;
+            }
+            
         } catch (RestClientException | IOException e) {
             logger.log(System.Logger.Level.ERROR, "Critical failure", e);
         }
 
     }
 
+    public void getSessionToken() {
+        String url = apiUrl + "/api_token.php?command=request";
+        try {
+            ResponseEntity<String> response = restTemplate.getForEntity(url, String.class);
+            String json = response.getBody();
+            SessionTokenDTO tokenDto = cleanerService.extractSessionToken(json);
+            sessionToken = tokenDto.getToken();
+            
+        } catch (RestClientException | IOException e) {
+            logger.log(System.Logger.Level.ERROR, "Critical failure", e);
+        }
+    }
 
     public void getCategories() {
         String url = apiUrl + "/api_category.php";