#!groovy

ROK8S_NO_BUILD = false
ROK8S_NO_DEPLOY = false

switch (env.BRANCH_NAME) {
  case "master":
    env.ROK8S_CONFIG='deploy/staging.config'
    break

  case ~/v.*/:
    env.ROK8S_CONFIG='deploy/production.config'
    ROK8S_NO_BUILD=true
    break

  case ~/PR-.*/:
    echo "Building but not deploying ${env.BRANCH_NAME}"
    env.ROK8S_CONFIG='deploy/staging.config'
    ROK8S_NO_DEPLOY=true
    break

  case "develop":
    echo "Doing development deployment of ${env.BRANCH_NAME}"
    env.ROK8S_CONFIG='deploy/development.config'
    break

  default:
    echo "Skipping build for branch ${env.BRANCH_NAME}"
    currentBuild.result = 'SUCCESS'
    return
    break;
}

node('rok8s') {
  try {
    stage('Checkout'){
      def scmVars = checkout scm
      env.GIT_COMMIT = "${scmVars.GIT_COMMIT}"
    }
    stage('Set Environment'){
      env.CI_SHA1 = "${env.GIT_COMMIT}"
      env.CI_BRANCH = "${env.BRANCH_NAME}"
      env.CI_BUILD_NUM = "${env.BUILD_NUMBER}"
      env.ROK8S_TMP = "${env.WORKSPACE}@tmp"

      echo "==== Build info ===="
      echo "GIT COMMIT SHA: ${env.CI_SHA1}"
      echo "GIT BRANCH: ${env.CI_BRANCH}"
    }

    withCredentials() {
      rok8sEnv = [
        "CI_SHA1=${env.CI_SHA1}",
        "CI_BRANCH=${env.CI_BRANCH}",
        "CI_BUILD_NUM=${env.CI_BUILD_NUM}",
        "GIT_COMMIT=${env.GIT_COMMIT}",
        "ROK8S_TMP=${env.ROK8S_TMP}"
      ]
    }
    withEnv(rok8sEnv) {
      container('rok8s') {
        stage('Dependencies'){
          // Add cloud platform authentication here
        }

        if (!ROK8S_NO_BUILD) {
          stage('Build Docker'){
            echo 'Pulling latest image for cache'
            sh "docker-pull -f ${env.ROK8S_CONFIG}"
            echo 'Building docker image'
            sh "docker-build -f ${env.ROK8S_CONFIG}"
          }

          if (!ROK8S_NO_DEPLOY) {
            stage('Push Docker image'){
              echo 'Pushing docker image'
              sh "docker-push -f ${env.ROK8S_CONFIG}"
            }
          }

          stage('Test'){
            // Add Test execution here
          }
        }

        if (!ROK8S_NO_DEPLOY) {
          timeout(60) {
            stage('Deploy') {
              sh "prepare-kubectl"
              sh "k8s-deploy-and-verify -f ${ROK8S_CONFIG}"
            }
          }
        }
      }
    }
  }
  catch (err) {
    throw err
  }
}