name: Build and Deploy

on:
  push:
    branches: [main]

# Cancel any in-progress run when a new one is triggered
concurrency:
  group: deploy-${{ github.ref }}
  cancel-in-progress: true

env:
  REGISTRY: git.mcintire.me
  IMAGE: git.mcintire.me/graham/aprs.me

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
    outputs:
      image_tag: ${{ steps.tag.outputs.image_tag }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Compute image tag
        id: tag
        run: |
          TIMESTAMP=$(date +%s)
          SHA=${GITHUB_SHA:0:7}
          echo "image_tag=main-${TIMESTAMP}-${SHA}" >> "$GITHUB_OUTPUT"

      - name: Log in to registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: |
            ${{ env.IMAGE }}:${{ steps.tag.outputs.image_tag }}
            ${{ env.IMAGE }}:main
          cache-from: type=registry,ref=${{ env.IMAGE }}:main
          cache-to: type=inline

  deploy:
    needs: build-and-push
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Update image in deployment manifest
        run: |
          NEW_IMAGE="${{ env.IMAGE }}:${{ needs.build-and-push.outputs.image_tag }}"
          sed -i "s|image: git.mcintire.me/graham/aprs.me:.*|image: ${NEW_IMAGE}|g" k8s/deployment.yaml

      - name: Commit and push updated manifest
        run: |
          NEW_IMAGE="${{ env.IMAGE }}:${{ needs.build-and-push.outputs.image_tag }}"
          git config user.name "github-actions"
          git config user.email "github-actions@github.com"
          git add k8s/deployment.yaml
          git diff --cached --quiet && echo "No changes to commit" && exit 0
          git commit -m "chore: update aprs.me image to ${NEW_IMAGE} [skip ci]"
          git push