feat: created a better account creation flow

MyINPulse-back/src/main/java/enseirb/myinpulse/service/EntrepreneurApiService.java

@@ -2,10 +2,13 @@ package enseirb.myinpulse.service;
 
 import static enseirb.myinpulse.model.ProjectDecisionValue.PENDING;
 
+import enseirb.myinpulse.model.Entrepreneur;
 import enseirb.myinpulse.model.Project;
 import enseirb.myinpulse.model.SectionCell;
+import enseirb.myinpulse.service.database.EntrepreneurService;
 import enseirb.myinpulse.service.database.ProjectService;
 import enseirb.myinpulse.service.database.SectionCellService;
+import enseirb.myinpulse.service.database.UserService;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
@@ -22,15 +25,21 @@ public class EntrepreneurApiService {
     private final SectionCellService sectionCellService;
     private final ProjectService projectService;
     private final UtilsService utilsService;
+    private final UserService userService;
+    private final EntrepreneurService entrepreneurService;
 
     @Autowired
     EntrepreneurApiService(
             SectionCellService sectionCellService,
             ProjectService projectService,
-            UtilsService utilsService) {
+            UtilsService utilsService,
+            UserService userService,
+            EntrepreneurService entrepreneurService) {
         this.sectionCellService = sectionCellService;
         this.projectService = projectService;
         this.utilsService = utilsService;
+        this.userService = userService;
+        this.entrepreneurService = entrepreneurService;
     }
 
     public void editSectionCell(Long sectionCellId, String content, String mail) {
@@ -128,4 +137,15 @@ public class EntrepreneurApiService {
         project.setProjectStatus(PENDING);
         projectService.addNewProject(project);
     }
+
+    public void createAccount(Entrepreneur e) {
+        try {
+            userService.getUserByEmail(e.getPrimaryMail());
+            logger.error("The user {} already exists in the system", e.getPrimaryMail());
+        } catch (ResponseStatusException err) {
+            this.entrepreneurService.addEntrepreneur(e);
+            return;
+        }
+        throw new ResponseStatusException(HttpStatus.CONFLICT, "User already exists in the system");
+    }
 }