name: Build
run-name: Build Docker Image
on: [push, pull_request]

jobs:

  build:

    runs-on: ubuntu-20.04

    steps:

      - name: Install docker
        uses: papodaca/install-docker-action@main

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Checkout
        uses: actions/checkout@v4

      - name: Prepare Docker build
        id: prepare
        run: |
          function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }

          BITCOIN_VERSION='24'
          LATEST_BITCOIN_MAJOR_VERSION=$(find . -type d -maxdepth 1 -not -path '*/\.*' | sort -n | tail -n 1 | cut -c 3-)
          PLATFORMS="linux/amd64"
          PUSH=false
          TAGS='bill/bitcoin-docker:24'

          echo ::set-output name=build_date::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
          echo ::set-output name=docker_platforms::${PLATFORMS}
          echo ::set-output name=docker_username::${{ gitea.repository_owner }}
          echo ::set-output name=push::${PUSH}
          echo ::set-output name=tags::${TAGS}
          echo ::set-output name=build::true

      - if: ${{ steps.prepare.outputs.build }} == 'true'
        name: Login into Registry
        uses: docker/login-action@v3
        with:
          username: ${{ gitea.repository_owner }}
          password: ${{ secrets.REGISTRY_TOKEN }}

      - if: ${{ steps.prepare.outputs.build }} == 'true'
        name: Build Docker image
        run: |
          TAGS=(${{ steps.prepare.outputs.tags }})

          echo "Build date: ${{ steps.prepare.outputs.build_date }}"
          echo "Docker platform: ${{ steps.prepare.outputs.docker_platforms }}"
          echo "Push: ${{ steps.prepare.outputs.push }}"
          echo "Tags: ${{ steps.prepare.outputs.tags }}"

          echo docker buildx build --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=${{steps.prepare.outputs.push}}" \
            --progress=plain \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            $(printf "%s" "${TAGS[@]/#/ --tag }" )/

          docker buildx build --platform ${{ steps.prepare.outputs.docker_platforms }} \
            --output "type=image,push=${{steps.prepare.outputs.push}}" \
            --progress=plain \
            --build-arg "BUILD_DATE=${{ steps.prepare.outputs.build_date }}" \
            $(printf "%s" "${TAGS[@]/#/ --tag }" )/