feat: add medical technology controller and create and findBy functio…

…nalities

src/main/kotlin/application/controller/MedicalTechnologyController.kt

@@ -0,0 +1,51 @@
+/*
+ * 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 application.controller
+
+import application.controller.manager.MedicalTechnologyDatabaseManager
+import application.controller.manager.MedicalTechnologyDigitalTwinManager
+import application.controller.util.rollback
+import entity.medicaltechnology.MedicalTechnology
+import entity.medicaltechnology.MedicalTechnologyID
+import entity.zone.RoomID
+import usecase.repository.MedicalTechnologyRepository
+import java.time.Instant
+
+/**
+ * Implementation of medical technology repository that handle the application logic
+ * using both db and digital twin.
+ * @param[digitalTwinManager] the digital twin manager for medical technologies.
+ * @param[databaseManager] the database manager for medical technologies.
+ */
+class MedicalTechnologyController(
+    private val digitalTwinManager: MedicalTechnologyDigitalTwinManager,
+    private val databaseManager: MedicalTechnologyDatabaseManager
+) : MedicalTechnologyRepository {
+    override fun createMedicalTechnology(medicalTechnology: MedicalTechnology): MedicalTechnology? = (
+        this.digitalTwinManager.createMedicalTechnologyDigitalTwin(medicalTechnology) &&
+            this.databaseManager.saveMedicalTechnology(medicalTechnology).rollback {
+                this.digitalTwinManager.deleteMedicalTechnologyDigitalTwin(medicalTechnology.id)
+            }
+        ).let { if (it) medicalTechnology else null }
+
+    override fun deleteMedicalTechnology(medicalTechnologyId: MedicalTechnologyID): Boolean {
+        TODO("Not yet implemented")
+    }
+
+    override fun findBy(medicalTechnologyId: MedicalTechnologyID, dateTime: Instant?): MedicalTechnology? =
+        if (dateTime == null) { // if the date-time is null, then obtain present information
+            this.digitalTwinManager.findBy(medicalTechnologyId)
+        } else {
+            this.databaseManager.findBy(medicalTechnologyId, dateTime)
+        }
+
+    override fun mapTechnologyTo(medicalTechnologyId: MedicalTechnologyID, roomId: RoomID): Boolean {
+        TODO("Not yet implemented")
+    }
+}