chore: create medical technology repository interface

Author: AndreaGiulianelli

src/main/kotlin/usecase/repository/MedicalTechnologyRepository.kt

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+/*
+ * Copyright (c) 2023. Smart Operating Block
+ *
+ * Use of this source code is governed by an MIT-style
+ * license that can be found in the LICENSE file or at
+ * https://opensource.org/licenses/MIT.
+ */
+
+package usecase.repository
+
+import entity.medicaltechnology.MedicalTechnology
+import entity.medicaltechnology.MedicalTechnologyID
+import entity.zone.RoomID
+
+/**
+ * Interface that models the repository to manage Medical Technologies.
+ */
+interface MedicalTechnologyRepository {
+    /**
+     * Create a [medicalTechnology].
+     * @return null if the medical technology already exists, the  medical technology created otherwise.
+     */
+    fun createMedicalTechnology(medicalTechnology: MedicalTechnology): MedicalTechnology?
+
+    /**
+     * Delete a medical technology by its [medicalTechnologyId].
+     * @return true if correctly deleted, false otherwise.
+     */
+    fun deleteMedicalTechnology(medicalTechnologyId: MedicalTechnologyID): Boolean
+
+    /**
+     * Find a medical technology by its [medicalTechnologyId].
+     * @return the medical technology if present, null otherwise.
+     */
+    fun findBy(medicalTechnologyId: MedicalTechnologyID): MedicalTechnology?
+
+    /**
+     * Map a medical technology identified by its [medicalTechnologyId] to another [roomId].
+     * NB: the roomId existence isn't checked. You need to check its existence on your own.
+     * @return false if the medical technology does not exist, true otherwise.
+     */
+    fun mapTechnologyTo(medicalTechnologyId: MedicalTechnologyID, roomId: RoomID): Boolean
+}