name: Build and Push Container Image

on:
  push:
    branches:
      - main
    tags:
      - "v*"

jobs:
  build-and-push:
    runs-on: orchestration-platform
    container:
      image: docker:27-cli

    steps:
      - name: Install tools
        run: |
          apk add --no-cache git

      - name: Checkout code
        run: |
          git clone --depth 1 --branch "${GITHUB_REF_NAME}" "${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}.git" .

      - name: Check Dockerfile
        run: |
          test -f Dockerfile || { echo "Dockerfile not found"; exit 1; }

      - name: Determine image metadata
        id: meta
        run: |
          REGISTRY_HOST=$(echo "${{ gitea.server_url }}" | sed 's|https\?://||; s|/.*$||')
          IMAGE="${REGISTRY_HOST}/${{ gitea.repository }}"

          if echo "${{ gitea.ref }}" | grep -q '^refs/tags/'; then
            TAG=$(echo "${{ gitea.ref }}" | sed 's|refs/tags/v\?||')
            EXTRA_TAG=""
          else
            TAG="latest"
            EXTRA_TAG="main-${{ gitea.sha }}"
          fi

          echo "registry_host=${REGISTRY_HOST}" >> "$GITHUB_OUTPUT"
          echo "image=${IMAGE}" >> "$GITHUB_OUTPUT"
          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
          echo "extra_tag=${EXTRA_TAG}" >> "$GITHUB_OUTPUT"

      - name: Login to Gitea registry
        run: |
          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login \
            "${{ steps.meta.outputs.registry_host }}" \
            --username "${{ secrets.REGISTRY_USERNAME }}" \
            --password-stdin

      - name: Build image
        run: |
          docker build \
            --label "org.opencontainers.image.source=${{ gitea.server_url }}/${{ gitea.repository }}" \
            --label "org.opencontainers.image.revision=${{ gitea.sha }}" \
            -t "${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.tag }}" \
            .

      - name: Add trace tag
        if: ${{ steps.meta.outputs.extra_tag != '' }}
        run: |
          docker tag \
            "${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.tag }}" \
            "${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.extra_tag }}"

      - name: Push image
        run: |
          docker push "${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.tag }}"

          if [ -n "${{ steps.meta.outputs.extra_tag }}" ]; then
            docker push "${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.extra_tag }}"
          fi