name: Docker Build and Release Upload

on:
  push:
    tags:
      - "v*"

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Build Docker image
        run: docker build -t myapp:${GITEA_REF_NAME} .

      - name: Save Docker image to tarball
        run: docker save myapp:${GITEA_REF_NAME} -o myapp-${GITEA_REF_NAME}.tar

      - name: Create Gitea release (if needed)
        run: curl -s -X POST \
            -H "Authorization: token ${{ secrets.PUBLISH_TOKEN  }}" \
            -H "Content-Type: application/json" \
            -d "{\"tag_name\": \"${GITEA_REF_NAME}\", \"name\": \"${GITEA_REF_NAME}\"}" \
            https://${GITEA_SERVER}/api/v1/repos/${GITEA_REPOSITORY}/releases || true

      - name: Get release ID
        id: get_release
        run: RELEASE_JSON=$(curl -s -H "Authorization: token ${{ secrets.PUBLISH_TOKEN  }}" \
            https://${GITEA_SERVER}/api/v1/repos/${GITEA_REPOSITORY}/releases/tags/${GITEA_REF_NAME})
          echo "release_id=$(echo $RELEASE_JSON | jq -r .id)" >> $GITEA_OUTPUT

      - name: Upload tarball to Gitea release
        run: curl -s -X POST \
            -H "Authorization: token ${{ secrets.PUBLISH_TOKEN  }}" \
            -F "attachment=@myapp-${GITEA_REF_NAME}.tar" \
            https://${GITEA_SERVER}/api/v1/repos/${GITEA_REPOSITORY}/releases/${{ steps.get_release.outputs.release_id }}/assets