fix: This was literally hell

src/main/java/com/maradona/backend/DefaultValueLoader.java

@@ -13,7 +13,6 @@ import com.maradona.backend.repositories.ProjectRepository;
 import com.maradona.backend.repositories.SecondarySkillRepository;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.CommandLineRunner;
-import org.springframework.data.repository.CrudRepository;
 import org.springframework.stereotype.Component;
 
 import java.time.LocalDate;

src/main/java/com/maradona/backend/entities/Employee.java

@@ -3,12 +3,10 @@ package com.maradona.backend.entities;
 import jakarta.persistence.*;
 import lombok.Data;
 
-import com.fasterxml.jackson.annotation.JsonBackReference;
-import com.fasterxml.jackson.annotation.JsonManagedReference;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
 import java.time.LocalTime;
 import java.util.List;
-import java.util.Map;
-import java.util.stream.Collectors;
 
 /**
  * Represents an employee.
@@ -48,15 +46,6 @@ public class Employee {
     @Column(length = 100)
     private String lastName;
 
-    /**
-     * The form of address of the employee.
-     * 
-     * This is a reference to the form of address entity.
-     */
-    @ManyToOne
-    @JoinColumn(name = "form_of_address_fid")
-    private FormOfAddress formOfAddress;
-
     /**
      * The start time of the employee's daylie business.
      */
@@ -72,18 +61,27 @@ public class Employee {
      * 
      * This is a list of secondary skill entities.
      */
-    @OneToMany(mappedBy = "employee", cascade = CascadeType.ALL, orphanRemoval = true)
-    @JsonManagedReference
+    @OneToMany(mappedBy = "employee", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.LAZY)
+    @JsonIgnore
     private List<EmployeeSecondarySkill> secondarySkills;
 
     /**
-     * The projects of the employee.
+     * The form of address of the employee.
      * 
-     * This is a list of project entities.
+     * This is a reference to the form of address entity.
      */
-    @ManyToMany
-    @JoinTable(name = "employee_project", joinColumns = @JoinColumn(name = "employee_eid"), inverseJoinColumns = @JoinColumn(name = "project_pid"))
-    @JsonBackReference
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "form_of_address_fid")
+    @JsonIgnore
+    private FormOfAddress formOfAddress;
+
+    /**
+     * The projects that the employee works on.
+     * 
+     * This is a list of references to the project entity.
+     */
+    @ManyToMany(mappedBy = "employees", fetch = FetchType.LAZY)
+    @JsonIgnore
     private List<Project> projects;
 
     /**
@@ -231,12 +229,20 @@ public class Employee {
     }
 
     /**
-     * Sets the projects of the employee.
+     * Returns the projects that the employee works on.
      * 
-     * @param projects The projects of the employee.
+     * @return The projects that the employee works on.
      */
-    public Map<SecondarySkill, Integer> getSecondarySkillLevels() {
-        return secondarySkills.stream()
-                .collect(Collectors.toMap(EmployeeSecondarySkill::getSecondarySkill, EmployeeSecondarySkill::getLevel));
+    public List<Project> getProjects() {
+        return projects;
+    }
+
+    /**
+     * Sets the projects that the employee works on.
+     * 
+     * @param projects The projects that the employee works on.
+     */
+    public void setProjects(List<Project> projects) {
+        this.projects = projects;
     }
 }

src/main/java/com/maradona/backend/entities/EmployeeSecondarySkill.java

@@ -3,6 +3,7 @@ package com.maradona.backend.entities;
 import jakarta.persistence.*;
 import lombok.Data;
 import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 
 /**
  * Represents an employee's secondary skill.
@@ -27,9 +28,9 @@ public class EmployeeSecondarySkill {
    * 
    * This is a reference to the employee entity.
    */
-  @ManyToOne
-  @JoinColumn(name = "employee_eid", nullable = false)
-  @JsonBackReference
+  @ManyToOne(fetch = FetchType.LAZY)
+  @JoinColumn(name = "employee_id")
+  @JsonIgnore
   private Employee employee;
 
   /**
@@ -37,8 +38,9 @@ public class EmployeeSecondarySkill {
    * 
    * This is a reference to the secondary skill entity.
    */
-  @ManyToOne
-  @JoinColumn(name = "secondary_skill_id", nullable = false)
+  @ManyToOne(fetch = FetchType.LAZY)
+  @JoinColumn(name = "secondary_skill_id")
+  @JsonIgnore
   private SecondarySkill secondarySkill;
 
   /**

src/main/java/com/maradona/backend/entities/FormOfAddress.java

@@ -2,6 +2,9 @@ package com.maradona.backend.entities;
 
 import java.util.List;
 
+import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+
 import jakarta.persistence.*;
 import lombok.Data;
 
@@ -37,7 +40,8 @@ public class FormOfAddress {
      * 
      * This is a list of references to the employee entity.
      */
-    @OneToMany(mappedBy = "formOfAddress")
+    @OneToMany(mappedBy = "formOfAddress", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.LAZY)
+    @JsonIgnore
     private List<Employee> employees;
 
     /**

src/main/java/com/maradona/backend/entities/PrimarySkill.java

@@ -1,6 +1,8 @@
 package com.maradona.backend.entities;
 
 import jakarta.persistence.*;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonManagedReference;
 import lombok.Data;
 import java.util.List;
@@ -37,8 +39,8 @@ public class PrimarySkill {
      * 
      * This is a list of references to the secondary skill entity.
      */
-    @OneToMany(mappedBy = "primarySkill", cascade = CascadeType.ALL, orphanRemoval = true)
-    @JsonManagedReference
+    @OneToMany(mappedBy = "primarySkill", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.LAZY)
+    @JsonIgnore
     private List<SecondarySkill> secondarySkills;
 
     /**

src/main/java/com/maradona/backend/entities/Project.java

@@ -5,7 +5,7 @@ import lombok.Data;
 import java.time.LocalDate;
 import java.util.List;
 
-import com.fasterxml.jackson.annotation.JsonManagedReference;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 
 /**
  * Represents a project.
@@ -37,8 +37,9 @@ public class Project {
      * 
      * This is a list of references to the employee entity.
      */
-    @ManyToMany(mappedBy = "projects")
-    @JsonManagedReference
+    @ManyToMany(fetch = FetchType.LAZY)
+    @JoinTable(name = "project_employee", joinColumns = @JoinColumn(name = "project_id"), inverseJoinColumns = @JoinColumn(name = "employee_id"))
+    @JsonIgnore
     private List<Employee> employees;
 
     /**

src/main/java/com/maradona/backend/entities/SecondarySkill.java

@@ -2,6 +2,7 @@ package com.maradona.backend.entities;
 
 import jakarta.persistence.*;
 import com.fasterxml.jackson.annotation.JsonBackReference;
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonManagedReference;
 import lombok.Data;
 import java.util.List;
@@ -38,9 +39,9 @@ public class SecondarySkill {
      * 
      * This is a reference to the primary skill entity.
      */
-    @ManyToOne
-    @JoinColumn(name = "psid", nullable = false)
-    @JsonBackReference
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "primary_skill_id")
+    @JsonIgnore
     private PrimarySkill primarySkill;
 
     /**
@@ -48,8 +49,8 @@ public class SecondarySkill {
      * 
      * This is a list of references to the employee's secondary skill entity.
      */
-    @OneToMany(mappedBy = "secondarySkill", cascade = CascadeType.ALL, orphanRemoval = true)
-    @JsonManagedReference
+    @OneToMany(mappedBy = "secondarySkill", cascade = CascadeType.ALL, orphanRemoval = true, fetch = FetchType.LAZY)
+    @JsonIgnore
     private List<EmployeeSecondarySkill> employeeSecondarySkills;
 
     /**

src/main/java/com/maradona/backend/services/details/EmployeeDetails.java

@@ -3,8 +3,12 @@ package com.maradona.backend.services.details;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import com.maradona.backend.entities.Employee;
+import com.maradona.backend.entities.EmployeeSecondarySkill;
+import com.maradona.backend.entities.SecondarySkill;
 import com.maradona.backend.repositories.EmployeeRepository;
 
+import java.util.HashMap;
+import java.util.Map;
 import java.util.Optional;
 
 /**
@@ -55,4 +59,16 @@ public class EmployeeDetails {
     // TODO: This is a placeholder implementation
     return employeeRepository.findAll();
   }
+
+  // Map<SecondarySkill, Integer> secondarySkillLevels =
+  // employee.getSecondarySkillLevels();
+  public Map<SecondarySkill, Integer> getSecondarySkillLevels(Long eid) {
+    var employee = getEmployeeByEid(eid).orElse(null);
+    var employeeSecondarySkills = employee.getSecondarySkills();
+    var levels = new HashMap<SecondarySkill, Integer>();
+    for (EmployeeSecondarySkill employeeSecondarySkill : employeeSecondarySkills) {
+      levels.put(employeeSecondarySkill.getSecondarySkill(), employeeSecondarySkill.getLevel());
+    }
+    return levels;
+  }
 }

src/main/java/com/maradona/backend/services/transfer/SkillService.java

@@ -78,7 +78,7 @@ public class SkillService {
       return new ArrayList<>();
     }
 
-    Map<SecondarySkill, Integer> secondarySkillLevels = employee.getSecondarySkillLevels();
+    Map<SecondarySkill, Integer> secondarySkillLevels = employeeDetails.getSecondarySkillLevels(eid);
     List<SkillList> skills = new ArrayList<>();
 
     for (PrimarySkill primarySkill : primarySkillDetails.getAllPrimarySkills()) {