pipeline {
    options {
        // set a timeout of 60 minutes for this pipeline
        timeout(time: 60, unit: 'MINUTES')
    }
    agent {
      node {
        //TODO: Add label for the Maven jenkins agent
      }
    }

    environment {
        //TODO: Customize these variables for your environment
        DEV_PROJECT = "youruser-movies-dev"
        STAGE_PROJECT = "youruser-movies-stage"
        APP_GIT_URL = "https://github.com/youruser/DO288-apps"
        NEXUS_SERVER = "http://nexus-common.apps.cluster.domain.example.com/repository/java"

        // DO NOT CHANGE THE GLOBAL VARS BELOW THIS LINE
        APP_NAME = "movies"
    }


    stages {

        stage('Compilation Check') {
            steps {
                echo '### Checking for compile errors ###'
                sh '''
                        cd ${APP_NAME}
                        mvn -s settings.xml -B clean compile
                   '''
            }
        }

        stage('Run Unit Tests') {
            steps {
                echo '### Running unit tests ###'
                sh '''
                        cd ${APP_NAME}
                        mvn -s settings.xml -B clean test
                   '''
            }
        }

        stage('Static Code Analysis') {
            steps {
                echo '### Running pmd on code ###'
                sh '''
                        cd ${APP_NAME}
                        mvn -s settings.xml -B clean pmd:check
                   '''
            }
        }

        stage('Create fat JAR') {
            steps {
                echo '### Creating fat JAR ###'
                sh '''
                        cd ${APP_NAME}
                        mvn -s settings.xml -B clean package -DskipTests=true
                   '''
            }
        }

        stage('Launch new app in DEV env') {
            steps {
                echo '### Cleaning existing resources in DEV env ###'
                sh '''
                        oc delete all -l app=${APP_NAME} -n ${DEV_PROJECT}
                        oc delete all -l build=${APP_NAME} -n ${DEV_PROJECT}
                        sleep 5
                        oc new-build java:8 --name=${APP_NAME} --binary=true -n ${DEV_PROJECT}
                   '''

                echo '### Creating a new app in DEV env ###'
                script {
                    openshift.withCluster() {
                      openshift.withProject(env.DEV_PROJECT) {
                        openshift.selector("bc", "${APP_NAME}").startBuild("--from-file=${APP_NAME}/target/${APP_NAME}.jar", "--wait=true", "--follow=true")
                      }
                    }
                }
                // TODO: Create a new OpenShift application based on the ${APP_NAME}:latest image stream
                // TODO: Expose the ${APP_NAME} service for external access
            }
        }

        stage('Wait for deployment in DEV env') {
            //TODO: Watch deployment until pod is in 'Running' state
        }

        stage('Promote to Staging Env') {
            steps {
                timeout(time: 60, unit: 'MINUTES') {
                    input message: "Promote to Staging?"
                }
                script {
                    openshift.withCluster() {
                    // TODO: Tag the ${APP_NAME}:latest image stream in the dev env as ${APP_NAME}:stage in staging
                    }
                }
            }
        }

        stage('Deploy to Staging Env') {
            steps {
                echo '### Cleaning existing resources in Staging ###'
                sh '''
                        oc project ${STAGE_PROJECT}
                        oc delete all -l app=${APP_NAME}
                        sleep 5
                   '''

                echo '### Creating a new app in Staging ###'
                // TODO: Create a new app in staging and expose the service
            }
        }

        stage('Wait for deployment in Staging') {
            steps {
                sh "oc get route ${APP_NAME} -n ${STAGE_PROJECT} -o jsonpath='{ .spec.host }' --loglevel=4 > routehost"

                script {
                    routeHost = readFile('routehost').trim()

                    openshift.withCluster() {
                        openshift.withProject( "${STAGE_PROJECT}" ) {
                            def deployment = openshift.selector("dc", "${APP_NAME}").rollout()
                            openshift.selector("dc", "${APP_NAME}").related('pods').untilEach(1) {
                                return (it.object().status.phase == "Running")
                            }
                        }
                        echo "Deployment to Staging env is complete. Access the API endpoint at the URL http://${routeHost}/movies."
                    }
                }
            }
        }
    }
}