[MTDSA-21658] [MTDSA-27974]: Copy Shared Code (#554)

* MTDSA-21658: Copy Shared Code

* MTDSA-21658: resolve failing test issue

app/shared/config/AppConfigBase.scala

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2024 HM Revenue & Customs
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package shared.config
+
+import play.api.Configuration
+import uk.gov.hmrc.play.bootstrap.config.ServicesConfig
+
+trait AppConfigBase {
+  protected val config: ServicesConfig
+  protected val configuration: Configuration
+
+  private def serviceKeyFor(serviceName: String) = s"microservice.services.$serviceName"
+
+  protected def downstreamConfig(serviceName: String): DownstreamConfig = {
+    val baseUrl = config.baseUrl(serviceName)
+
+    val serviceKey = serviceKeyFor(serviceName)
+
+    val env                = config.getString(s"$serviceKey.env")
+    val token              = config.getString(s"$serviceKey.token")
+    val environmentHeaders = configuration.getOptional[Seq[String]](s"$serviceKey.environmentHeaders")
+
+    DownstreamConfig(baseUrl, env, token, environmentHeaders)
+  }
+
+  protected def basicAuthDownstreamConfig(serviceName: String): BasicAuthDownstreamConfig = {
+    val baseUrl = config.baseUrl(serviceName)
+
+    val serviceKey = serviceKeyFor(serviceName)
+
+    val env                = config.getString(s"$serviceKey.env")
+    val clientId           = config.getString(s"$serviceKey.clientId")
+    val clientSecret       = config.getString(s"$serviceKey.clientSecret")
+    val environmentHeaders = configuration.getOptional[Seq[String]](s"$serviceKey.environmentHeaders")
+
+    BasicAuthDownstreamConfig(baseUrl, env, clientId, clientSecret, environmentHeaders)
+  }
+
+}

app/shared/config/Deprecation.scala

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2024 HM Revenue & Customs
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package shared.config
+
+import java.time.LocalDateTime
+
+sealed trait Deprecation
+
+object Deprecation {
+  case object NotDeprecated extends Deprecation
+
+  case class Deprecated(deprecatedOn: LocalDateTime, sunsetDate: Option[LocalDateTime]) extends Deprecation
+
+}

app/shared/config/DownstreamConfig.scala

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2023 HM Revenue & Customs
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package shared.config
+
+case class DownstreamConfig(
+    baseUrl: String,
+    env: String,
+    token: String,
+    environmentHeaders: Option[Seq[String]]
+)
+
+case class BasicAuthDownstreamConfig(
+    baseUrl: String,
+    env: String,
+    clientId: String,
+    clientSecret: String,
+    environmentHeaders: Option[Seq[String]]
+)

app/shared/config/FeatureSwitches.scala

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 HM Revenue & Customs
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package shared.config
+
+import play.api.Configuration
+
+trait FeatureSwitches {
+
+  protected val featureSwitchConfig: Configuration
+
+  def isEnabled(feature: String): Boolean = isConfigTrue(feature + ".enabled")
+
+  def isReleasedInProduction(feature: String): Boolean = isConfigTrue(feature + ".released-in-production")
+
+  private def isConfigTrue(key: String): Boolean = featureSwitchConfig.getOptional[Boolean](key).getOrElse(true)
+
+  def supportingAgentsAccessControlEnabled: Boolean = isEnabled("supporting-agents-access-control")
+
+}
+
+/** This is just here for non-typesafe usage such as Handlebars using OasFeatureRewriter. In most cases, should use the API-specific
+  * XyzFeatureSwitches class instead.
+  */
+case class ConfigFeatureSwitches private (protected val featureSwitchConfig: Configuration) extends FeatureSwitches
+
+object ConfigFeatureSwitches {
+  def apply()(implicit appConfig: SharedAppConfig): ConfigFeatureSwitches = ConfigFeatureSwitches(appConfig.featureSwitchConfig)
+}