stages:
  - docker

workflow:
  rules:
    - if: '$CI_COMMIT_BRANCH == "dev"'
    - when: never

variables:
  DOCKER_BUILDKIT: "1"
  DOCKER_DRIVER: overlay2
  DOCKER_HOST: tcp://docker:2375
  DOCKER_TLS_CERTDIR: ""
  GIT_DEPTH: "0"

docker-dev:
  stage: docker
  image: docker:27.5.1
  services:
    - name: docker:27.5.1-dind
      alias: docker
  interruptible: true
  parallel:
    matrix:
      - TARGET: backend
        IMAGE: remnawave-minishop-backend
      - TARGET: worker
        IMAGE: remnawave-minishop-worker
      - TARGET: frontend
        IMAGE: remnawave-minishop-frontend
  before_script:
    - apk add --no-cache git
    - test -n "$DOCKERHUB_USERNAME"
    - test -n "$DOCKERHUB_TOKEN"
    - echo "$DOCKERHUB_TOKEN" | docker login --username "$DOCKERHUB_USERNAME" --password-stdin
    - docker buildx create --name gitlab-builder --driver docker-container --use
    - docker buildx inspect --bootstrap
  script:
    - git fetch origin dev --tags
    - |
      if [ "$(git rev-parse HEAD)" != "$(git rev-parse origin/dev)" ]; then
        echo "A newer dev commit exists; skipping Docker Hub build for $IMAGE."
        exit 0
      fi
    - |
      docker buildx build \
        --load \
        --platform linux/amd64 \
        --file deploy/docker/Dockerfile \
        --target "$TARGET" \
        --build-arg "CI_COMMIT_REF_NAME=$CI_COMMIT_REF_NAME" \
        --build-arg "BUILDKIT_INLINE_CACHE=1" \
        --cache-from "type=registry,ref=$DOCKERHUB_USERNAME/$IMAGE:dev" \
        --tag "$DOCKERHUB_USERNAME/$IMAGE:dev" \
        .
    - git fetch origin dev --tags
    - |
      if [ "$(git rev-parse HEAD)" != "$(git rev-parse origin/dev)" ]; then
        echo "A newer dev commit exists; skipping Docker Hub push for $IMAGE."
        exit 0
      fi
    - docker push "$DOCKERHUB_USERNAME/$IMAGE:dev"