name: Docker build & push

on:
  workflow_call:
    inputs:
      DockerImageDomain:
        description: 'Docker registry domain, e.g. registry.example.com'
        required: true
        type: string
      DockerImageOrganisation:
        description: 'Namespace / organisation in the registry'
        required: true
        type: string
      DockerImageName:
        description: 'Image name'
        required: true
        type: string
      DockerFilePath:
        description: 'Path to the Dockerfile'
        required: false
        type: string
        default: ./Dockerfile
      DockerImageVersion:
        description: 'Value used for the VERSION build-arg'
        required: true
        type: string
    secrets:
      DockerUsername:
        description: 'Registry username'
        required: true
      DockerPassword:
        description: 'Registry password / token'
        required: true

jobs:
  build-and-push:
    runs-on: ubuntu-latest

    env:
      IMAGE: ${{ inputs.DockerImageDomain }}/${{ inputs.DockerImageOrganisation }}/${{ inputs.DockerImageName }}

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Build Image
        run: |
          docker build \
            -t "$IMAGE:latest" \
            . \
            --file "${{ inputs.DockerFilePath }}" \
            --build-arg VERSION=${{ inputs.DockerImageVersion }}

      - name: Docker Release - Master
        if: startsWith(github.ref, 'refs/heads/master')
        run: |
          docker image tag "$IMAGE:latest" "$IMAGE:${GITHUB_REF_NAME}"

      - name: Docker Release - Dev
        if: startsWith(github.ref, 'refs/heads/develop') || startsWith(github.ref, 'refs/heads/feature/')
        run: |
          TAG="${GITHUB_REF_NAME//\//-}"
          docker image tag "$IMAGE:latest" "$IMAGE:${TAG}"

      - name: Docker Release - Tagged
        if: startsWith(github.ref, 'refs/tags/')
        run: |
          docker image tag "$IMAGE:latest" "$IMAGE:${GITHUB_REF_NAME}"

      - name: Docker Release - PR
        if: startsWith(github.ref, 'refs/pull/')
        run: |
          PR_NUM=${GITHUB_REF#refs/pull/}
          PR_NUM=${PR_NUM%/head}
          docker image tag "$IMAGE:latest" "$IMAGE:pr-${PR_NUM}"

      - name: Docker Push
        if: startsWith(github.ref, 'refs/heads/master') || startsWith(github.ref, 'refs/heads/develop') || startsWith(github.ref, 'refs/heads/feature/') || startsWith(github.ref, 'refs/tags/') || startsWith(github.ref, 'refs/pull/')
        env:
          USERNAME: ${{ secrets.DockerUsername }}
          PASSWORD: ${{ secrets.DockerPassword }}
        run: |
          echo "$PASSWORD" | docker login "${{ inputs.DockerImageDomain }}" -u "$USERNAME" --password-stdin
          docker push -a "$IMAGE"
          # docker system prune --all --force --filter until=6h

      - name: Cleanup
        run: |
          docker images "$IMAGE" --format "{{.Repository}}:{{.Tag}}" | xargs -r docker rmi -f