name: Docker images

on:
  workflow_call:
    inputs:
      version:
        required: true
        type: string
      push:
        required: false
        type: boolean
        default: true
  workflow_dispatch:
    inputs:
      version:
        description: Image tag to build.
        required: true
        default: dev
      push:
        description: Push images to GHCR.
        required: true
        type: boolean
        default: false

permissions:
  contents: read
  packages: write

jobs:
  build:
    name: Build ${{ matrix.name }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        include:
          - name: backend
            image: asp-backend
            context: ./backend
            file: ./backend/Dockerfile
          - name: frontend
            image: asp-frontend
            context: ./frontend
            file: ./frontend/Dockerfile
    steps:
      - uses: actions/checkout@v4
      - uses: docker/setup-buildx-action@v3
      - name: Resolve image tags
        id: tags
        shell: bash
        run: |
          owner="${GITHUB_REPOSITORY_OWNER,,}"
          repo="${GITHUB_REPOSITORY#*/}"
          repo="${repo,,}"
          base="ghcr.io/${owner}/${repo}/${{ matrix.image }}"
          {
            echo "tags<<EOF"
            echo "${base}:${{ inputs.version }}"
            if [ "${{ inputs.version }}" != "dev" ]; then
              echo "${base}:latest"
            fi
            echo "EOF"
          } >> "$GITHUB_OUTPUT"
      - name: Login to GHCR
        if: inputs.push
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: docker/build-push-action@v6
        with:
          context: ${{ matrix.context }}
          file: ${{ matrix.file }}
          push: ${{ inputs.push }}
          tags: ${{ steps.tags.outputs.tags }}
          cache-from: type=gha
          cache-to: type=gha,mode=max