pipeline {
  agent { label 'docker-agent' }

  options {
    skipDefaultCheckout(true)
    timestamps()
  }

  environment {
    REGISTRY     = "158.160.92.116:8085"
    REGISTRY_PROJECT = "shagram"
    IMAGE_NAME   = "shagram"
    DEPLOY_DIR   = "/opt/shagram/shagram/deploy/shagram"
    COMPOSE_FILE = "${WORKSPACE}/deploy/shagram/compose.yaml"
  }

  stages {
    stage('Checkout') {
      steps {
        checkout scm
        sh '''
          set -eux
          git reset --hard
          git clean -xffd
        '''
      }
    }

    stage('Detect branch') {
      steps {
        script {
          env.GIT_BRANCH = sh(
            script: "git name-rev --name-only --refs=refs/remotes/origin/* HEAD | sed 's#^remotes/##' | head -n1",
            returnStdout: true
          ).trim()
          echo "Detected branch: ${env.GIT_BRANCH}"
        }
      }
    }

    stage('Build image') {
      steps {
        script {
          env.GIT_SHA = sh(script: "git rev-parse --short HEAD", returnStdout: true).trim()
          // итоговый тег для Harbor
          env.APP_IMAGE = "${REGISTRY}/${REGISTRY_PROJECT}/${IMAGE_NAME}:${env.GIT_SHA}"
        }
        sh '''
          set -eux
          # собираем локальный образ без registry
          docker build -t "${IMAGE_NAME}:${GIT_SHA}" .
        '''
      }
    }

    stage('Login & Push to Harbor') {
      steps {
        withCredentials([usernamePassword(
          credentialsId: 'harbor-creds',
          usernameVariable: 'HARBOR_USER',
          passwordVariable: 'HARBOR_PASS'
        )]) {
          sh '''
            set -eux
            echo "$HARBOR_PASS" | docker login "$REGISTRY" -u "$HARBOR_USER" --password-stdin
            docker tag "${IMAGE_NAME}:${GIT_SHA}" "${APP_IMAGE}"
            docker push "${APP_IMAGE}"
          '''
        }
      }
    }

    stage('Test') {
      steps {
        sh 'echo "Testing..."'
      }
    }

    stage('Deploy') {
      when {
        expression { env.GIT_BRANCH == 'origin/main' }
      }
      steps {
        sh '''
          set -eux

          mkdir -p "$DEPLOY_DIR"
          cat > "$DEPLOY_DIR/.env" <<EOF
APP_IMAGE=${APP_IMAGE}
EOF

          docker compose -f "$COMPOSE_FILE" --project-directory "$DEPLOY_DIR" pull
          docker compose -f "$COMPOSE_FILE" --project-directory "$DEPLOY_DIR" up -d --remove-orphans
          docker compose -f "$COMPOSE_FILE" --project-directory "$DEPLOY_DIR" ps
        '''
      }
    }
  }
}