# Build and push on main branch — triggered automatically when commits land on main.
# Tag is commit short SHA: unique, immutable, maps to exactly one commit.
# Image: forgejo.riotpiao.com/rock/api-gateway:<commit-sha>
#
# ArgoCD auto-deploys to api namespace as revisions roll in.
name: Build and push

on:
  push:
    branches: [main]

env:
  REGISTRY: forgejo.riotpiao.com
  IMAGE: forgejo.riotpiao.com/rock/api-gateway

jobs:
  build:
    name: Build and push image
    runs-on: golang
    container:
      image: docker:27-cli
      volumes:
        - /docker-certs/client:/docker-certs/client:ro
    env:
      DOCKER_HOST: tcp://localhost:2376
      DOCKER_TLS_VERIFY: "1"
      DOCKER_CERT_PATH: /docker-certs/client
    steps:
      - name: install node (required by JS-based actions)
        run: apk add --no-cache nodejs git

      - uses: actions/checkout@v4

      - name: Get short SHA
        id: sha
        run: |
          SHORT_SHA=$(git rev-parse --short HEAD)
          echo "short_sha=${SHORT_SHA}" >> $GITHUB_OUTPUT

      - name: Registry login
        run: |
          echo "${REGISTRY_PAT}" | docker login "${REGISTRY}" \
            --username rock --password-stdin
        env:
          REGISTRY_PAT: ${{ secrets.REGISTRY_PAT }}

      - name: Build
        run: |
          docker build \
            --build-arg "VERSION=${{ steps.sha.outputs.short_sha }}" \
            -t "${IMAGE}:${{ steps.sha.outputs.short_sha }}" \
            -t "${IMAGE}:latest" \
            .

      - name: Push
        run: |
          docker push "${IMAGE}:${{ steps.sha.outputs.short_sha }}"
          docker push "${IMAGE}:latest"