name: Image Build

on:
  schedule:
    - cron: '0 0 * * *' # run daily

jobs:
  init:
    runs-on: ubuntu-latest
    outputs:
      iventoy: ${{ steps.iventoy.outputs.version }}
      buildOrNot: ${{ steps.buildOrNot.outputs.buildOrNot }}
    steps:
      - name: Install jq
        run: |
          sudo apt-get update
          sudo apt-get install jq -y

      - name: get latest versions
        id: iventoy
        run: |
          version=$(curl -s https://api.github.com/repos/ventoy/PXE/releases/latest | grep "tag_name" | cut -d'"' -f4)
          echo "version=${version#'v'}" >> $GITEA_OUTPUT

      - name: Check labels of the latest image on Docker Hub
        id: buildOrNot
        run: |
          repo=${1:-$GITEA_REPO}
          tag=${2:-latest}
          token=$(curl -s "https://auth.docker.io/token?service=registry.docker.io&scope=repository:${repo}:pull" | jq -r '.token')
          digest=$(curl -H "Accept: application/vnd.docker.distribution.manifest.v2+json" -H "Authorization: Bearer $token" -s "https://registry-1.docker.io/v2/${repo}/manifests/${tag}" | jq -r .config.digest)
          latest=$(curl -H "Accept: application/vnd.docker.distribution.manifest.v2+json" -H "Authorization: Bearer $token" -s -L "https://registry-1.docker.io/v2/${repo}/blobs/${digest}" | jq . | grep -Ew "IVENTOY" | cut -d'"' -f4)
          echo "buildOrNot=$([ $latest != '$GITEA_IVENTOY' ] && echo "true" || echo "$GITEA_FORCE_BUILD")" >> $GITEA_OUTPUT

  docker:
    name: iventoy image
    runs-on: ubuntu-latest
    needs:
      - init
    if: ${{ needs.init.outputs.buildOrNot == 'true' }}
    steps:
      - name: Checkout
        run: |
          echo "Checkout repository"
      - name: Login to Docker Hub
        run: |
          docker login -u $DOCKERHUB_USERNAME -p $DOCKERHUB_TOKEN
      - name: Build and push
        run: |
          docker build -t $DOCKERHUB_USERNAME/${GITEA_REPOSITORY_NAME}:${GITEA_IVENTOY} --build-arg IVENTOY=$GITEA_IVENTOY .
          docker push $DOCKERHUB_USERNAME/${GITEA_REPOSITORY_NAME}:${GITEA_IVENTOY}
          docker tag $DOCKERHUB_USERNAME/${GITEA_REPOSITORY_NAME}:${GITEA_IVENTOY} $DOCKERHUB_USERNAME/${GITEA_REPOSITORY_NAME}:latest
          docker push $DOCKERHUB_USERNAME/${GITEA_REPOSITORY_NAME}:latest