DIAC-123 setup a proper nightly pipeline

Jenkinsfile_nightly

@@ -1,10 +1,61 @@
 #!groovy
 
-@Library("Infrastructure")
+properties([
+  pipelineTriggers([cron('H 8 * * 1-5')]),
+])
 
+@Library("Infrastructure")
+import uk.gov.hmcts.contino.GradleBuilder
 def type = "java"
 def product = "ia"
 def component = "task-configuration"
 
-withPipeline(type, product, component) {
+GradleBuilder builder = new GradleBuilder(this, product)
+withNightlyPipeline(type, product, component) {
+  afterAlways('build') {
+    stage('Checkstyle and unit tests') {
+      try {
+        builder.gradle('check')
+      } catch (Error) {
+        unstable(message: "${STAGE_NAME} is unstable")
+      } finally {
+        publishHTML target: [
+          allowMissing         : true,
+          alwaysLinkToLastBuild: true,
+          keepAll              : true,
+          reportDir            : "build/reports/tests/test",
+          reportFiles          : "index.html",
+          reportName           : "Unit Test Report"
+        ]
+      }
+    }
+    stage('Integration Tests') {
+      try {
+        builder.gradle('integration')
+      } catch (Error) {
+        unstable(message: "${STAGE_NAME} is unstable")
+      } finally {
+        publishHTML target: [
+          allowMissing         : true,
+          alwaysLinkToLastBuild: true,
+          keepAll              : true,
+          reportDir            : "build/reports/tests/integration",
+          reportFiles          : "index.html",
+          reportName           : "Integration Test Report"
+        ]
+      }
+    }
+  }
+
+  afterAlways('DependencyCheckNightly') {
+    publishHTML([
+      allowMissing         : true,
+      alwaysLinkToLastBuild: true,
+      keepAll              : true,
+      reportDir            : "build/reports",
+      reportFiles          : 'dependency-check-report.html',
+      reportName           : 'Dependency Check Report'
+    ])
+  }
+
 }