Update developer documentation for staff

Co-authored-by: Denis Natusch <denis.natusch@mailbox.tu-dresden.de>
Co-authored-by: Simon Bruder <simon.bruder@mailbox.tu-dresden.de>

src/main/asciidoc/developer_documentation.adoc

@@ -295,10 +295,10 @@ image:models/design/staff.svg[class design diagram - Staff]
 [options="header"]
 |===
 |Class/Enumeration |Description
-|Staff |A class that represents staff members. It includes personal details and job information.
-|StaffController |A Spring MVC Controller for managing staff-related operations such as adding, removing, and updating staff data.
-|StaffDataInitializer |An Initalizer with primary purpose to create dummy data on application startup.
-|StaffRepository |An extension of 'CrudRepository' to perform add, save, count, remove, and find by id operations specific to staff objects.
+|Employee |A class that represents employees (staff members). It includes name, job type and an ID.
+|StaffController |A Spring MVC Controller for handling staff-related operations such as adding, removing, and updating staff data. It interacts with StaffManagement.
+|StaffManagement |A class that manages interactions and logic with StaffRepository. It provides methods to find, save/add, list, and delete staff members.
+|StaffRepository |An extension of 'CrudRepository' that provides standard methods to perform CRUD operations on staff objects.
 |===
 
 === Link between analysis and design

src/main/asciidoc/models/design/staff.puml

@@ -3,68 +3,59 @@
 skinparam linetype ortho
 skinparam groupInheritance 2
 
-package java.util {
-	class ArrayList
-	class Collection
-	class HashSet
-	class Optional
-	class Set
+package Spring {
+	class CrudRepository
+	class Streamable
 }
 
-package catering {
-package staff {
+package catering.staff {
 
-	class Staff {
-		- id: int
-		- surname:  String
+  class Employee {
 		- name: String
-		- job: String
-		+ Staff(name: String, surname: String, job: String)
-		+ getId(): int
-		+ getSurname(): String
+		- id: Long
+    + Employee()
+    + Employee(name: String, job: JobType)
+		+ getId(): Long
 		+ getName(): String
-		+ getJob(): String
-		+ setId(): void
-		+ setSurname(): void
-		+ setName(): void
-		+ setJob(): void
+		+ getJob(): JobType
+		+ setName(name: String): void
+		+ setJob(job: JobType): void
+	}
+
+  Employee --> JobType : -job
+
+	enum JobType {
+		COOK
+		SERVICE
 	}
 
 	class StaffController {
 		+ StaffController(staffRepository: StaffRepository)
-		+ getStaff(model Model): String
-		+ removeStaff(staffID: int, model Model): String
-		+ addStaff(name: String, surname: String, job: String, model Model): String
-		+ editStaff(id: int, model Model): String
-		+ updateStaff(staff: Staff): String
+    + getStaff(model: Model): String
+    + removeEmployee(employee: Employee, model: Model): String
+    + addEmployee(name: String, job: JobType): String
+    + editEmployee(employee: Employee, model Model): String
+    + updateEmployee(employee: Employee, name: String, job: JobType): String
 	}
+		StaffController --> StaffManagement : -staffManagement
+    StaffController ..> Employee
 
-	class StaffDataInitializer {
-		+ StaffDataInitializer(staffRepository: StaffRepository)
-		+ initialize(): void
+	class StaffManagement {
+		+ StaffManagement(staffRepository: StaffRepository)
+    + findById(id: Long): Optional<Employee>
+    + save(employee: Employee): Employee
+    + findAll(): Streamable<Employee>
+    + delete(id: Long): void
 	}
+		StaffManagement --> StaffRepository : -staffRepository
 
-	class StaffRepository {
-		+ StaffRepository()
-		+ addStaff(staff: Staff): boolean
-		+ save(staff: Staff): void
-		+ count(): long
-		+ removeStaff(staffID: int) boolean
-		+ getStaff(): Collection<Staff>
-		+ findById(id: int): Optional<Staff>
+	interface StaffRepository {
+    + findAll(): Streamable<Employee>
 	}
+		StaffRepository --|> CrudRepository : <<extends>>
+		StaffRepository ..|> Streamable
+    StaffRepository o-- Employee
 
 }
-}
-
-StaffRepository o-- Staff : -staff
-StaffController --> StaffRepository : -staffRepository
-StaffDataInitializer --> StaffRepository : -staffRepository
-StaffRepository --> Set : -staff
-StaffRepository ..> HashSet
-StaffRepository ..> Collection
-StaffRepository ..> Optional
-StaffRepository ..> ArrayList
-Staff -[hidden]- StaffRepository
 
 @enduml