# This CI will run:
workflow:
  rules:
    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'    # ... on merge requests
    - if: $CI_COMMIT_TAG                                  # ... on tags
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH         # ... on default (master/main) branch

stages:
  - build-image
  - test


variables:
  # Fetch submodules
  GIT_SUBMODULE_STRATEGY: recursive
  # Only fetch the latest commit (shallow clone, faster)
  GIT_SUBMODULE_DEPTH: 1
  GIT_DEPTH: 1

# Builds the image and pushes it to the registry
# This image contains all the tooling necessary to run the compilation tools
build-image:
  stage: build-image
  # Run image build only if packages changed
  only:
    changes:
      - Dockerfile
      - packages.txt
      - requirements.txt
      - .gitlab-ci.yml
      - tools/*
  # Set up the docker daemon for building the image
  image: docker:latest
  services:
    - docker:dind
  variables:
    DOCKER_DRIVER: overlay2
  script:
    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY     # Login to the registry
    - docker pull $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME || true        # Pull the image if it exists
                                                                        # Build the image and tag it with the branch name and latest
    - |
      docker build \
      --build-arg BUILDKIT_INLINE_CACHE=1 \
      --cache-from $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME \
      -t $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_NAME \
      -t $CI_REGISTRY_IMAGE:latest \
      .
    - docker push --all-tags $CI_REGISTRY_IMAGE                         # Push the image to the registry

# Try to compile the code inside the image to make sure it works (run docker container)
build-test-us10:
  stage: test
  image:
    name: $CI_REGISTRY_IMAGE:latest
    entrypoint: [""]
  before_script:
    # Download the baserom from $BASEROM_<VER>_URL, decrypt with $BASEROM_<VER>_KEY and save as baserom.us.v10.z64, and check the sha1sum against $BASEROM_<VER>_SHA1
    - curl -L "$BASEROM_US10_URL" -o baserom.us.v10.enc.z64
    - openssl enc -d -aes-256-cbc -in baserom.us.v10.enc.z64 -out baserom.us.v10.z64 -k "$BASEROM_US10_KEY"
    - FILE_SHA1=$(sha1sum baserom.us.v10.z64 | awk '{ print $1 }')
    - echo "Calculated SHA1 - $FILE_SHA1"
    - echo "Expected SHA1   - $BASEROM_US10_SHA1"
    - if [ "${FILE_SHA1}" != "${BASEROM_US10_SHA1}" ]; then echo "Checksum verification failed"; exit 1; else echo "Checksum verification passed"; fi
  script:
    # Compile the code
    - make
    # Check if the resulting ROM is the same as the expected one
    - FILE_SHA1=$(sha1sum build/us.v10/banjo.us.v10.z64 | awk '{ print $1 }')
    - echo "Calculated SHA1 - $FILE_SHA1"
    - echo "Expected SHA1   - $BASEROM_US10_SHA1"
    - if [ "${FILE_SHA1}" != "${BASEROM_US10_SHA1}" ]; then echo "Checksum verification failed"; exit 1; else echo "Checksum verification passed"; fi

# Try to compile the code inside the image to make sure it works (run docker container)
build-test-pal:
  stage: test
  image:
    name: $CI_REGISTRY_IMAGE:latest
    entrypoint: [""]
  before_script:
    - curl -L "$BASEROM_PAL_URL" -o baserom.pal.enc.z64
    - openssl enc -d -aes-256-cbc -in baserom.pal.enc.z64 -out baserom.pal.z64 -k "$BASEROM_PAL_KEY"
    - FILE_SHA1=$(sha1sum baserom.pal.z64 | awk '{ print $1 }')
    - echo "Calculated SHA1 - $FILE_SHA1"
    - echo "Expected SHA1   - $BASEROM_PAL_SHA1"
    - if [ "${FILE_SHA1}" != "${BASEROM_PAL_SHA1}" ]; then echo "Checksum verification failed"; exit 1; else echo "Checksum verification passed"; fi
  script:
    # Compile the code
    - make VERSION=pal
    # Check if the resulting decompressed ROM is the same as the expected one
    # ToDo: compare compressed ROMs once tooling is in place
    - DECOMP_SHA1=$(sha1sum decompressed.pal.z64 | awk '{ print $1 }')
    - FILE_SHA1=$(sha1sum build/pal/banjo.pal.prelim.z64 | awk '{ print $1 }')
    - echo "Calculated SHA1 - $FILE_SHA1"
    - echo "Expected SHA1   - $DECOMP_SHA1"
    - if [ "${FILE_SHA1}" != "${DECOMP_SHA1}" ]; then echo "Checksum verification failed"; exit 1; else echo "Checksum verification passed"; fi