pipeline {
  agent any

  options {
    timestamps()
    disableConcurrentBuilds()
  }

  environment {
    // ===== Registry =====
    REGISTRY_HOST = "registry.pjt.kr"
    IMAGE_REPO    = "alist/api"
    DOCKER_CRED  = "docker-registry-login"
  }

  stages {
    stage('1) Git check out') {
      steps {
        checkout scm
      }
    }

    stage('2) Build (Gradle)') {
      steps {
        sh '''
          set -e
          chmod +x ./gradlew
          ./gradlew clean build -x test
        '''
      }
    }

    stage('3) image tab create') {
      steps {
        script {
          env.SHORT_SHA = sh(script: "git rev-parse --short HEAD", returnStdout: true).trim()
          echo "SHORT_SHA = ${env.SHORT_SHA}"
          env.IMAGE_TAG = "${env.BUILD_NUMBER}-${env.SHORT_SHA}"
          echo "IMAGE_TAG = ${env.IMAGE_TAG}"
        }
      }
    }

    stage('4) Docker Build') {
      steps {
        sh '''
          set -e
          docker build -t ${REGISTRY_HOST}/${IMAGE_REPO}:${IMAGE_TAG} .
         '''
      }
    }

    stage('5) Docker Login & Push') {
      steps {
        withCredentials([usernamePassword(
          credentialsId: DOCKER_CRED,
          usernameVariable: 'DOCKER_USER',
          passwordVariable: 'DOCKER_PASS'
        )]) {
          sh '''
            set -e

            echo "$DOCKER_PASS" | docker login ${REGISTRY_HOST} \
              -u "$DOCKER_USER" --password-stdin

            docker push ${REGISTRY_HOST}/${IMAGE_REPO}:${IMAGE_TAG}

            docker logout ${REGISTRY_HOST}
          '''
        }
      }
    }
  }
}