.gitlab-ci.yml

variables:
  DOCKER_REGISTRY: "registry.gitlab.com"
  DOCKER_IMAGE_NAME: "${CI_REGISTRY_IMAGE}:${CI_COMMIT_SHA}"
  MAVEN_OPTS: >-
    -Dhttps.protocols=TLSv1.2
    -Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository
    -Dorg.slf4j.simpleLogger.showDateTime=true
    -Djava.awt.headless=true
    -Dmaven.install.skip=true

  MAVEN_CLI_OPTS: >-
    --batch-mode
    --errors
    --fail-at-end
    --show-version
    --no-transfer-progress
    -DinstallAtEnd=true
    -DdeployAtEnd=true

  BUILD_IMAGE: maven:3.8-openjdk-8

stages:
  - .pre
  - build
  - test
  - package

# Detect Java version from pom.xml
detect-java-version:
  image: alpine:latest
  stage: .pre
  script:
    - apk add --no-cache grep
    - |
      if grep -q "<java.version>17</java.version>\|<maven.compiler.source>17</maven.compiler.source>\|<maven.compiler.target>17</maven.compiler.target>" pom.xml; then
        echo "BUILD_IMAGE=maven:3.8-openjdk-17" > build.env
        echo "Detected Java 17 in pom.xml - Post-transformation"
      else
        echo "BUILD_IMAGE=maven:3.8-openjdk-8" > build.env
        echo "Detected Java 8 in pom.xml - Pre-transformation"
      fi
    - cat build.env
  artifacts:
    reports:
      dotenv: build.env
    expire_in: 1 hour

# Install dependency in .pre stage
install-dependency:
  image: $BUILD_IMAGE
  stage: .pre
  needs:
    - detect-java-version
  script:
    - mvn install:install-file 
      -Dfile=./movie-service-utils/built-library/0_1_0/movie-service-utils-0.1.0.jar 
      -DgroupId=com.amazonaws.samples 
      -DartifactId=movie-service-utils 
      -Dversion=0.1.0 
      -Dpackaging=jar
  cache:
    paths:
      - .m2/repository/
    key: ${CI_COMMIT_REF_SLUG}
  artifacts:
    paths:
      - .m2/repository/org/amazonaws/samples/
    expire_in: 1 week

# Build stage
build:
  image: $BUILD_IMAGE
  stage: build
  needs:
    - detect-java-version
    - install-dependency
  script:
    - echo "Building the application..."
    - mvn $MAVEN_CLI_OPTS clean compile
  cache:
    paths:
      - .m2/repository/
    key: ${CI_COMMIT_REF_SLUG}
  artifacts:
    paths:
      - target/
    expire_in: 1 week

# Test stage
test:
  image: $BUILD_IMAGE
  stage: test
  needs:
    - detect-java-version
    - build
  script:
    - echo "Running tests..."
    - mvn $MAVEN_CLI_OPTS test
  cache:
    paths:
      - .m2/repository/
    key: ${CI_COMMIT_REF_SLUG}
  artifacts:
    reports:
      junit: target/surefire-reports/*.xml
    expire_in: 1 week

# Package stage with Kaniko
package:
  stage: package
  needs:
    - detect-java-version
    - test
    - install-dependency
    - build
  image:
    name: gcr.io/kaniko-project/executor:debug
    entrypoint: [""]
  script:
    - mkdir -p /kaniko/.docker
    - echo "{\"auths\":{\"$DOCKER_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
    - |
      if grep -q "<java.version>17</java.version>\|<maven.compiler.source>17</maven.compiler.source>\|<maven.compiler.target>17</maven.compiler.target>" pom.xml; then
        echo "Detected Java 17 in pom.xml - Generating Dockerfile for Java 17"
        sed 's/maven:3.6.1-amazoncorretto-8/maven:3.8-openjdk-17/g' Dockerfile > Dockerfile.dynamic
      else
        echo "Detected Java 8 in pom.xml - Using original Dockerfile for Java 8"
        cp Dockerfile Dockerfile.dynamic
      fi
    - /kaniko/executor
      --context "${CI_PROJECT_DIR}"
      --dockerfile "${CI_PROJECT_DIR}/Dockerfile.dynamic"
      --destination "${DOCKER_IMAGE_NAME}"
  dependencies:
    - install-dependency
    - build
  cache:
    paths:
      - .m2/repository/
    key: ${CI_COMMIT_REF_SLUG}

# Q Code Transformation job - Required by Q Developer (only for pre-transformation)
q-code-transformation:
  image: $BUILD_IMAGE
  stage: build
  needs:
    - detect-java-version
    - install-dependency
  script:
    - |
      if grep -q "<java.version>17</java.version>\|<maven.compiler.source>17</maven.compiler.source>\|<maven.compiler.target>17</maven.compiler.target>" pom.xml; then
        echo "Post-transformation detected - skipping dependency copy"
        mvn $MAVEN_CLI_OPTS verify
      else
        echo "Pre-transformation detected - running full Q transformation"
        mvn $MAVEN_CLI_OPTS verify
        mvn $MAVEN_CLI_OPTS dependency:copy-dependencies -DoutputDirectory=dependencies -Dmdep.useRepositoryLayout=true -Dmdep.copyPom=true -Dmdep.addParentPoms=true
      fi
  cache:
    paths:
      - .m2/repository/
    key: ${CI_COMMIT_REF_SLUG}
  artifacts:
    name: q-code-transformation-dependencies
    paths:
      - dependencies/*
    when: on_success
  rules:
    - if: $CI_COMMIT_REF_NAME =~ /^q\/transform-/ && $CI_PIPELINE_SOURCE == 'push' && $BUILD_IMAGE !~ /openjdk-17/
      when: always
    - when: never