chore: create azure dt client

Author: andrea-acampora

src/main/kotlin/infrastructure/digitaltwins/AzureDTClient.kt

@@ -9,29 +9,64 @@
 package infrastructure.digitaltwins
 
 import application.controller.manager.HealthProfessionalDigitalTwinsManager
-import application.controller.manager.UserDigitalTwinsManager
+import com.azure.digitaltwins.core.BasicDigitalTwin
+import com.azure.digitaltwins.core.BasicRelationship
+import com.azure.digitaltwins.core.DigitalTwinsClientBuilder
+import com.azure.digitaltwins.core.implementation.models.ErrorResponseException
+import com.azure.identity.DefaultAzureCredentialBuilder
 import entity.healthprofessional.HealthProfessionalData.HealthProfessional
-import entity.user.User
+import infrastructure.digitaltwins.adtpresenter.HealthProfessionalAdt.toDigitalTwin
 
 /**
  * The Azure Digital Twins Client.
  * It contains the implementation of Digital Twins operations.
  */
-class AzureDTClient : UserDigitalTwinsManager, HealthProfessionalDigitalTwinsManager {
+class AzureDTClient : HealthProfessionalDigitalTwinsManager {
 
-    override fun createUser(user: User) {
-        TODO("Not yet implemented")
+    init {
+        checkNotNull(System.getenv("AZURE_CLIENT_ID")) {
+            "Azure Client App Id required!"
+        }
+        checkNotNull(System.getenv("AZURE_TENANT_ID")) {
+            "Azure Tenant Id required!"
+        }
+        checkNotNull(System.getenv("AZURE_CLIENT_SECRET")) {
+            "Azure Client Secret required!"
+        }
+        checkNotNull(System.getenv("AZURE_DT_ENDPOINT")) {
+            "Azure Digital Twin Endpoint required!"
+        }
     }
 
-    override fun createHealthProfessional(healthProfessional: HealthProfessional) {
-        TODO("Not yet implemented")
-    }
+    private val client = DigitalTwinsClientBuilder()
+        .credential(DefaultAzureCredentialBuilder().build())
+        .endpoint(System.getenv("AZURE_DT_ENDPOINT"))
+        .buildClient()
 
-    override fun deleteUser(userId: String) {
-        TODO("Not yet implemented")
+    override fun createHealthProfessional(healthProfessional: HealthProfessional): Boolean {
+        with(healthProfessional.toDigitalTwin()) {
+            try {
+                client.createOrReplaceDigitalTwin(this.id, this, BasicDigitalTwin::class.java)
+                return true
+            } catch (e: ErrorResponseException) {
+                println(e)
+                return false
+            }
+        }
     }
 
-    override fun deleteHealthProfessional(healthProfessionalId: String) {
-        TODO("Not yet implemented")
-    }
+    override fun deleteHealthProfessional(healthProfessionalId: String): Boolean =
+        try {
+            client.listIncomingRelationships(healthProfessionalId).forEach {
+                client.deleteRelationship(it.sourceId, it.relationshipId)
+            }
+            client.listRelationships(healthProfessionalId, BasicRelationship::class.java).forEach {
+                client.deleteRelationship(it.sourceId, it.id)
+            }
+            client.deleteDigitalTwin(healthProfessionalId)
+            true
+        } catch (e: ErrorResponseException) {
+            println(e)
+            false
+        }
 }