// Get the build name using the directory structure in Jenkins
String[] buildElements = env.JOB_NAME.split('/')
String buildName = buildElements[buildElements.length - 2]
String release = "${env.RELEASE_VERSION ?: "SNAPSHOT"}"
String tag = "packages-$release"
String repository = "ssh://git@collaboration.msi.audi.com:4444/vsdsinf/${buildName}.git"

def modules_paths = [
  "modules/aws/dynatrace",
  "packages/eu-west-1/int",
  "packages/eu-west-1/prelive",
  "packages/us-east-1/prelive",
]

def terraform_check(paths) {
  paths.each { path ->
    sh("terraform -chdir=${path} init -backend=false")
    sh("terraform -chdir=${path} fmt -recursive --check")
  }
}


pipeline {
    agent {
        node {
            label 'vsds-terraform'
        }
    }

    parameters {
      choice choices: ['none', 'eu-west-1/int', 'eu-west-1/prelive', 'us-east-1/prelive'], description: 'Please choose the environment for this deployment', name: 'TARGET'
  }

    environment {
        GIT_SSH_COMMAND = "ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"
    }

    options {
        timestamps()
        ansiColor('xterm')
        disableConcurrentBuilds(abortPrevious: true)
        timeout(time: 1, unit: 'HOURS')
    }

    stages {
        stage("Check Tag") {
          when { expression { !release.equals("SNAPSHOT") } }
            steps {
                sshagent(credentials: ['sofa-user-automation']) {
                  script {
                        env.PLAN_STATUS = sh(script: """
                            | if [[ "\$(git ls-remote origin 2>/dev/null | grep 'refs/tags/$tag\$')" ]]; then
                            |     echo "Release $tag exists"
                            |     exit 1
                            | fi
                            """.stripMargin('| '), returnStatus: true)

                        if (env.PLAN_STATUS == "1") {
                            currentBuild.result = "FAILURE"
                            error('Aborting the build.')
                            return
                        }
                    }
                }
            }
        }
        stage('Terraform validate') {
          steps {
            container('terraform') {
              sshagent(credentials: ['sofa-user-automation']) {
                script {
                  terraform_check(modules_paths)
                }
              }
            }
          }
        }

        stage('Terraform plan') {
          when { expression { params.TARGET != "none"} }
            steps {       
              container('terraform') {
                sshagent(credentials: ['sofa-user-automation']) {
                  script {
                    if ( params.TARGET == 'eu-west-1/int' ) {
                      withCredentials([string(credentialsId: 'APIURL_DYNATRACE_EU_INT', variable: 'DYNATRACE_ENV_URL'), string(credentialsId: 'APITOKEN_DYNATRACE_EU_INT', variable: 'DYNATRACE_API_TOKEN'), string(credentialsId: 'packer_dynatrace_aws_access_key_id', variable: 'AWS_ACCESS_KEY_ID'), string(credentialsId: 'packer_dynatrace_aws_secret_access_key', variable: 'AWS_SECRET_ACCESS_KEY')]) {
                        sh "terraform -chdir=packages/${params.TARGET} init"
                        statusCode = sh(script: "terraform -chdir=packages/${TARGET} plan -detailed-exitcode", returnStatus: true) as String
                      }
                    } else if ( params.TARGET == 'eu-west-1/prelive' ) {
                      withCredentials([string(credentialsId: 'APIURL_DYNATRACE_EU_PRELIVE', variable: 'DYNATRACE_ENV_URL'), string(credentialsId: 'APITOKEN_DYNATRACE_EU_PRELIVE', variable: 'DYNATRACE_API_TOKEN'), string(credentialsId: 'packer_dynatrace_aws_access_key_id', variable: 'AWS_ACCESS_KEY_ID'), string(credentialsId: 'packer_dynatrace_aws_secret_access_key', variable: 'AWS_SECRET_ACCESS_KEY')]) {
                        sh "terraform -chdir=packages/${params.TARGET} init"
                        statusCode = sh(script: "terraform -chdir=packages/${TARGET} plan -detailed-exitcode", returnStatus: true) as String
                      }
                    } else if ( params.TARGET == 'us-east-1/prelive' ) {
                      withCredentials([string(credentialsId: 'APIURL_DYNATRACE_US_PRELIVE', variable: 'DYNATRACE_ENV_URL'), string(credentialsId: 'APITOKEN_DYNATRACE_US_PRELIVE', variable: 'DYNATRACE_API_TOKEN'), string(credentialsId: 'packer_dynatrace_aws_access_key_id', variable: 'AWS_ACCESS_KEY_ID'), string(credentialsId: 'packer_dynatrace_aws_secret_access_key', variable: 'AWS_SECRET_ACCESS_KEY')]) {
                        sh "terraform -chdir=packages/${params.TARGET} init"
                        statusCode = sh(script: "terraform -chdir=packages/${TARGET} plan -detailed-exitcode", returnStatus: true) as String
                      }
                    }
                  }
                }
              }
            }
          }

        stage('Terraform apply') {
          when { beforeInput true; expression { params.TARGET != "none" }; expression { statusCode == "2" } }
            input {
                message "Applying terraform code ?"
                submitter "cicd_ACDC_administrators"
            }
            steps {
              container('terraform') {
                sshagent(credentials: ['sofa-user-automation']) {
                  script {
                    if ( params.TARGET == 'eu-west-1/int' ) {
                      withCredentials([string(credentialsId: 'APIURL_DYNATRACE_EU_INT', variable: 'DYNATRACE_ENV_URL'), string(credentialsId: 'APITOKEN_DYNATRACE_EU_INT', variable: 'DYNATRACE_API_TOKEN'), string(credentialsId: 'packer_dynatrace_aws_access_key_id', variable: 'AWS_ACCESS_KEY_ID'), string(credentialsId: 'packer_dynatrace_aws_secret_access_key', variable: 'AWS_SECRET_ACCESS_KEY')]) {
                        sh "terraform -chdir=packages/${params.TARGET} apply"
                      }
                    if ( params.TARGET == 'eu-west-1/prelive' ) {
                      withCredentials([string(credentialsId: 'APIURL_DYNATRACE_EU_PRELIVE', variable: 'DYNATRACE_ENV_URL'), string(credentialsId: 'APITOKEN_DYNATRACE_EU_PRELIVE', variable: 'DYNATRACE_API_TOKEN'), string(credentialsId: 'packer_dynatrace_aws_access_key_id', variable: 'AWS_ACCESS_KEY_ID'), string(credentialsId: 'packer_dynatrace_aws_secret_access_key', variable: 'AWS_SECRET_ACCESS_KEY')]) {
                        sh "terraform -chdir=packages/${params.TARGET} apply"
                      }
                    } else if ( params.TARGET == 'us-east-1/prelive' ) {
                      withCredentials([string(credentialsId: 'APIURL_DYNATRACE_US_PRELIVE', variable: 'DYNATRACE_ENV_URL'), string(credentialsId: 'APITOKEN_DYNATRACE_US_PRELIVE', variable: 'DYNATRACE_API_TOKEN'), string(credentialsId: 'packer_dynatrace_aws_access_key_id', variable: 'AWS_ACCESS_KEY_ID'), string(credentialsId: 'packer_dynatrace_aws_secret_access_key', variable: 'AWS_SECRET_ACCESS_KEY')]) {
                        sh "terraform -chdir=packages/${params.TARGET} apply"
                      }
                    }
                  }
                }
              }
            }
          }
        }

        stage('Create tag') {
            when { expression { !release.equals("SNAPSHOT") } }
            steps {
                sshagent(credentials: ['sofa-user-automation']) {
                    sh """
                        | git tag $tag
                        | git push origin $tag
                        """.stripMargin('| ')
                }
            }
        }
    }

    post {
        always {
            cleanWs()
            script {
                currentBuild.result = currentBuild.result ?: 'SUCCESS'
                notifyBitbucket(projectKey: 'packages')
            }
        }
    }
}